JP2003158690A - On-vehicle receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle receiver that provides a receptible channel at least through a terrestrial broadcasting at a present position of a vehicle. SOLUTION: The on-vehicle receiver for receiving a broadcast program comprising a plurality of channels and outputting video or/and voice of a selected channel, is characterized by comprising current position detection means GA, 20, 21, 22, 23 for detecting a current position of the vehicle, a terrestrial channel DB 40 that stores each broadcast area of the terrestrial broadcast, channels receptible in each broadcast area and information of the channels in cross-reference with each other, a channel list generating means 41 that particularizes the broadcast area of the terrestrial broadcast on the basis of the detected present position, extracts receptible channels in the broadcast area particularized by the terrestrial channel DB 40, and generates a list of the receptible channels by the terrestrial broadcast at the present position and the information of the channels, and a channel list output means 42 that outputs the list, and a BD (main body display device).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted receiving device that provides information on at least a channel receivable by terrestrial broadcasting at the current position of a vehicle.

[0002]

2. Description of the Related Art Currently, most automobiles are equipped with a car radio, and AM (Amplitude Modulation) broadcasting and FM broadcasting are carried out.
[Frequency Modulation] Can receive broadcast signals from terrestrial radio broadcasting such as broadcasting and output radio sound. Also,
A car TV is also installed in the car, and VHF [V
ery High Frequency] broadcasting and UHF [Ultra High Frequen
cy] received the terrestrial TV broadcast signal,
It can output TV video and TV audio. Currently, in these terrestrial broadcasts, audio signals and video signals are large-capacity analog signals, and one broadcasting station (channel) is assigned to one frequency band. Further, in the case of terrestrial broadcasting, it is divided into a large number of broadcasting areas, there are a plurality of broadcasting stations in each broadcasting area, and a broadcasting frequency is assigned to each broadcasting station in each broadcasting area.

In addition to terrestrial broadcasting, radio broadcasting and television broadcasting include BS [Broadcasting Satellite] broadcasting and CS broadcasting.
[Communication Satellite] There is also satellite broadcasting by broadcasting. Satellite broadcasting requires a receiving device and a reception fee different from those of terrestrial broadcasting, but is gradually spreading to general households.
Therefore, it is predicted that even automobiles will receive a broadcast signal by satellite broadcasting and output radio sound or TV video or TV sound. Currently, in satellite broadcasting, in addition to analog signals as audio and video signals,
There is also a digital signal in which analog data is compression-coded to have a small capacity. Therefore, in satellite broadcasting using digital signals, in the case of digital signals, since digital signals of a plurality of channels can be multiplexed, a large number of channels are assigned to one frequency band.

[0004]

However, in the case of terrestrial broadcasting, a broadcasting signal can be received because the broadcasting signal is transmitted by a radio wave (carrier wave) of a predetermined output from a transmitting antenna installed in a radio tower or the like. The area is limited within a predetermined distance from the transmitting antenna. Therefore, when the receiving position is moved by the traveling of the automobile, the receivable broadcast area may change to the adjacent broadcast area. Since the broadcasting station changes when the broadcasting area changes, the broadcasting frequency (each channel) assigned to each broadcasting station also changes, and it is necessary for the user in the vehicle to reselect the frequency (channel). However, normally, a user does not have information about a broadcasting station corresponding to each frequency (each channel) in each broadcasting area while moving by a car. Therefore, it is necessary to select the frequency (channel) by checking the programs being broadcast at each broadcasting station by matching the frequency (channel) one by one, and the frequency (channel) selection is complicated for the user. It will be a work. Further, in the case of digital broadcasting, a large number of channels are set, which makes the selection of channels more complicated.

Therefore, an object of the present invention is to provide an in-vehicle receiving device that provides at least a channel that can be received by terrestrial broadcasting at the current position of the vehicle.

[0006]

A vehicle-mounted receiving device according to the present invention, which has solved the above-mentioned problems, receives a broadcast composed of a plurality of channels and outputs a video or / and audio of a selected channel. The device detects a current position of a vehicle and outputs a list of channels receivable by terrestrial broadcasting at the current position and information on the channels. According to this vehicle-mounted receiver, even when the current position of the vehicle is moved and the broadcast area of the terrestrial broadcast is changed, a channel receivable in the broadcast area at the current position and information on the channel are provided. Simplify your choice.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a vehicle-mounted receiving device according to the present invention will be described below with reference to the drawings.

A vehicle-mounted receiving device according to the present invention is a vehicle-mounted receiving device that receives a broadcast composed of a plurality of channels and outputs video or / and audio of a selected channel. Even if you move, you can easily select the channel.

Therefore, the vehicle-mounted receiving apparatus according to the present invention includes a current position detecting means for detecting the current position of the vehicle, each terrestrial broadcasting area, a receivable channel in the broadcasting area, and a corresponding channel. A terrestrial channel database that stores information in association with each other, and a channel that can be received within the broadcasting area specified from the terrestrial channel database by specifying the terrestrial broadcasting area by the current position detected by the current position detection means. Channel list creating means for creating a list of channels that can be received by terrestrial broadcasting at the current position and information of the channels, and channel list outputting means for outputting the list created by the channel list creating means. Information about channels that can be received by terrestrial broadcasting according to the current position of the vehicle. It can be provided. Furthermore, in the in-vehicle receiving device according to the present invention, in the in-vehicle receiving device, the information of the listed channels includes information of frequencies assigned to each broadcasting station performing terrestrial broadcasting,
When any terrestrial broadcasting channel is selected based on the list output by the user, the selected terrestrial broadcasting channel is searched from the created list, and the frequency corresponding to the terrestrial broadcasting arbitrary channel is searched. A terrestrial broadcast channel selecting means for extracting a terrestrial broadcast signal in a band is provided. In particular, the in-vehicle receiving device according to the present invention broadcasts terrestrial channel information in which each broadcasting area of terrestrial broadcasting in a satellite broadcast, a channel receivable in the broadcasting area and information of the channel are associated with each other. If so, the terrestrial channel database stores terrestrial channel information received from satellite broadcasting.

Further, the on-vehicle receiving device according to the present invention is provided with a satellite channel database for storing channels receivable by satellite broadcasting and information on the channels in the on-vehicle receiving device, and the channel list creating means is , A list of channels that can be received by terrestrial broadcasting and satellite broadcasting at the current position and information on that channel is created based on the terrestrial channel database and satellite channel database. In addition, information on channels receivable by satellite broadcasting can be provided. Further, in the in-vehicle receiving device according to the present invention, in the in-vehicle receiving device, the content of each channel of satellite broadcasting is composed of a large number of packets included in the satellite broadcasting signal, and based on a list output by the user. When an arbitrary channel of the satellite broadcast is selected, a satellite broadcast channel selecting means for extracting a packet corresponding to the arbitrary channel of the selected satellite broadcast from the satellite broadcast signal is provided.

In the case of audio broadcasting, the in-vehicle receiving device according to the present invention is the in-vehicle receiving device, wherein terrestrial broadcasting is intended for AM broadcasting and / or FM broadcasting, and satellite broadcasting is HEO [Highly Elliptical Orbit]. ] For satellite broadcasting.

In the case of television broadcasting, the in-vehicle receiving device according to the present invention is the in-vehicle receiving device, wherein the terrestrial broadcast is VHF broadcast and / or UHF broadcast, and the satellite broadcast is HEO satellite broadcast or BS. Intended for broadcast and / or CS broadcast.

In the present embodiment, the on-vehicle receiving device according to the present invention is applied to the on-vehicle receiving devices according to the four embodiments, which receive different broadcasts. In the first embodiment, terrestrial radio broadcasts such as AM broadcasts and FM broadcasts are received,
This is a vehicle-mounted receiving device that only outputs audio. In the second embodiment, VHF broadcast and U which are terrestrial television broadcasts.
It is a vehicle-mounted receiving device that receives HF broadcast and outputs audio and video. The third embodiment is an on-vehicle receiving device that receives AM and FM broadcasts that are terrestrial radio broadcasts and HEO satellite broadcasts that are satellite digital audio broadcasts, and that only outputs audio. The fourth embodiment is an on-vehicle receiving device that receives VHF broadcast and UHF broadcast that are terrestrial television broadcasts and HEO satellite broadcast that is satellite digital television broadcast, and outputs audio and video.

First, with reference to FIGS. 1 to 4, the structure of the vehicle-mounted receiving apparatus 1A according to the first embodiment will be described. FIG. 1 is an overall configuration diagram of a vehicle-mounted receiving device 1A. FIG. 2 is an internal configuration diagram of the apparatus main body 2A. Figure 3
FIG. 3 is a configuration diagram of the channel database 40. Figure 4
FIG. 6 is a diagram showing a channel list.

The on-vehicle receiving device 1A is mounted on a car and receives AM and FM broadcasts of terrestrial radio broadcasts and outputs them as audio. In addition, the in-vehicle receiving device 1A is
It receives a GPS signal from an S [Global Positioning System] satellite to detect the current position, and outputs a channel list of AM broadcasts and FM broadcasts that can be received at the current position. Therefore, the in-vehicle receiving device 1A mainly
Device body 2A, radio antenna RA, GPS antenna G
A, a remote controller R, speakers S, S and the like.

The device main body 2A is a device attached to a center console of an automobile and controlling the vehicle-mounted receiving device 1A. The device main body 2A includes radio antennas RA and GP.
The S antenna GA, the remote controller R, and the speakers S, S are wired. Further, various operation buttons OB, a remote control receiver RR, and a main body display BD are provided on the front surface of the apparatus main body 2A. The various operation buttons OB are buttons for performing operations (channel selection, reception frequency tuning, volume adjustment, etc.) from the user. The remote control receiver RR receives an operation signal from the remote control R. The main body display BD is a liquid crystal display and displays a channel list, a selected channel, a reception frequency, a volume, and the like.

In the apparatus body 2A, the AM broadcast signal and the FM broadcast signal received by the radio antenna RA are demodulated, and the AM broadcast or FM broadcast of the channel (or the tuned frequency) selected by the user is sent to the speaker S, Sound output from S. Further, the device body 2A demodulates the GPS signal received by the GPS antenna GA and calculates the current position based on at least three GPS signals. Then, the apparatus main body 2A specifies a broadcasting area based on the current position, creates a channel list including terrestrial radio broadcasting stations receivable in the broadcasting area and the reception frequency, and outputs the channel list. The internal configuration of the apparatus body 2A will be described later in detail.

The radio antenna RA is an antenna which is attached to the outside of the automobile and receives an AM broadcast signal and an FM broadcast signal transmitted from a transmission antenna installed in a radio tower or the like.

The GPS antenna GA is attached to the inside or the outside of the automobile, and the GP transmitted from the GPS satellite is used.
It is an antenna that receives an S signal.

The remote controller R is provided with buttons for performing the same operations as the various operation buttons OB, and transmits operation signals corresponding to user operations.

The speakers S, S are mounted on the left and right sides of the inside of the vehicle, respectively, and are speakers for converting a stereo audio signal transmitted from the apparatus main body 2A into audio and outputting the audio.

The internal structure of the apparatus main body 2A will be described with reference to FIG. The apparatus main body 2A mainly includes an AM signal receiving unit 10, an FM signal receiving unit 11, an AM channel selecting unit 12, an FM channel selecting unit 13, and an AM signal demodulating unit 1.
4, FM signal demodulation unit 15, voice output unit 16, GPS signal reception unit 20, GPS signal demodulation unit 21, positioning calculation unit 22,
The current position determination unit 23, the operation signal reception unit 30, the channel detection unit 31, the channel database (hereinafter, DB [Bat
a Base]) 40, channel list creation unit 4
1 and a channel list display section 42. Therefore, the device main body 2A includes various input circuits, various demodulation circuits,
Various output circuits, storage devices, CPU [Central Processing
Unit] etc. In the first embodiment,
GPS antenna GA, GPS signal receiving unit 20, GPS signal demodulating unit 21, positioning calculating unit 22, and current position determining unit 2
3 corresponds to the present position detecting means described in the claims, the AM channel selecting section 12 and the FM channel selecting section 13 correspond to the terrestrial broadcast channel selecting means described in the claims, and the channel DB 40 patents It corresponds to the terrestrial channel database described in the claims, the channel list creation section 41 corresponds to the channel list creation means described in the claims, and the channel list display section 42 and the main body display BD correspond to the claims. It corresponds to the described channel list output means.

The AM signal receiving section 10 receives an AM broadcast signal via the radio antenna RA and amplifies it.

The FM signal receiving section 11 receives and amplifies the FM broadcast signal via the radio antenna RA.

The AM channel selection unit 12 searches the channel list created by the channel list creation unit 41 for the frequency corresponding to the AM broadcast channel selected by the user by operating the operation button OB or the remote controller R (see FIG. 4). ). By the way, AM channel selector 12
Then, when the user is tuning the reception frequency by operating the operation button OB or the remote controller R, the above-described search is not performed. Then, the AM channel selection unit 1
Reference numeral 2 extracts an AM broadcast signal having a constant band centered on the frequency searched (or tuned) from the amplified AM broadcast signal.

The FM channel selection unit 13 searches the channel list created by the channel list creation unit 41 for a frequency corresponding to the FM broadcast channel selected by the user by operating the operation button OB or the remote controller R (see FIG. 4). ). By the way, FM channel selection unit 13
Then, when the user is tuning the reception frequency by operating the operation button OB or the remote controller R, the above-described search is not performed. Then, the FM channel selection unit 1
Reference numeral 3 extracts an FM broadcast signal having a constant band centered on the frequency searched (or tuned) from the amplified FM broadcast signal.

The AM signal demodulation section 14 demodulates the AM broadcast signal in the extracted frequency band to extract an audio signal.

The FM signal demodulation section 15 demodulates the FM broadcast signal in the extracted frequency band to extract an audio signal.

The audio output unit 16 converts the audio signal from the AM signal demodulation unit 14 or the audio signal from the FM signal demodulation unit 15 into left and right stereo audio signals, and further amplifies the stereo audio signals to produce the speaker S. , S to S.

The GPS signal receiving section 20 receives the GPS signal via the GPS antenna GA and amplifies it.

In the GPS signal demodulation unit 21, the amplified GP
The S signal is demodulated, and a navigation signal composed of GPS satellite orbit information, time information, etc. is extracted. Further, the GPS signal demodulation unit 21 calculates the distance to the GPS satellite from the propagation time of the GPS signal based on the navigation signal.

In the positioning calculation section 22, based on the navigation signals from three or more GPS satellites and the distance between each GPS satellite,
Calculate the current position (latitude, longitude) and error range. Incidentally, it is necessary to receive GPS signals from at least three GPS satellites in order to calculate the current position in two dimensions, and at least four GPS satellites in order to calculate the current position in three dimensions including altitude. Need to receive GPS signals from.

In the current position determination unit 23, the positioning calculation unit 22
The current position (latitude, longitude) is determined based on the current position and the error range calculated in. The current position determination unit 2
In item 3, in order to improve the accuracy of the current position, the current position may be determined by the following method used in the car navigation system. In the current position determination unit 23,
The current position by self-contained navigation is calculated based on the traveling distance by the distance sensor and the azimuth by the azimuth sensor. Then, the current position determination unit 23 calculates the traveling locus and azimuth by hybrid navigation based on the current position by GPS and the current position by self-contained navigation. Further, the current position determination unit 23 performs map matching based on the traveling locus and direction and the map data for map matching,
Calculates the current position, the road on which the vehicle is traveling, and the traveling direction Incidentally, when a large color display for display is provided, a map for car navigation showing the calculated current position may be displayed.

In the operation signal receiving section 30, the operation button OB
And receives the operation signal from and amplifies the operation signal. Further, the operation signal receiving section 30 receives an operation signal from the remote controller R via the remote controller receiving section RR and amplifies the operation signal.

In the channel detection unit 31, the user is AM
If you have selected broadcast or FM broadcast by channel,
The channel is extracted from the amplified operation signal. Further, when the user tunes AM broadcast or FM broadcast by frequency, the channel detection unit 31 extracts the frequency from the amplified operation signal.

The channel DB 40 is preconfigured in a storage device, and divides the whole of Japan into regions (broadcast areas) centered on a transmission antenna installed in a radio tower or the like,
It stores information about terrestrial radio broadcasting channels for each region. A specific configuration of the channel DB 40 will be described with reference to FIG. In the channel DB 40, the area range is set to the north and south limits by latitude and the east and west limits are set as longitudes as the reception range of AM broadcast and FM broadcast in each region. In addition, the channel DB40
In, a broadcasting station that is AM-broadcasting within a regional range set in each area, a reception frequency assigned to the broadcasting station, and a channel assigned to each broadcasting station are set. In addition, in the channel DB 40, a broadcasting station performing FM broadcasting within an area range set in each area, a reception frequency allocated to the broadcasting station, and a channel allocated to the broadcasting station are set. In the first embodiment, 1 to 50 channels are secured as AM broadcasting for each region, AM broadcasting stations are allocated in order from 1 channel, and 51 to 100 channels are secured by FM broadcasting. FM broadcast stations are assigned in order from.

The channel list creation unit 41 searches for which region of the region range set in the channel DB 40 the current position (latitude, longitude) determined by the current position determination unit 23 is located. Then, in the channel list creation unit 41, AM broadcast and FM corresponding to the searched area
All channels of broadcasting, broadcasting stations and frequencies of each channel are extracted from the channel DB 40. Further, the channel list creation unit 41 creates a channel list by arranging broadcasting stations and frequencies from 1 channel as AM broadcasting in association with each other and broadcasting stations and frequencies from 51 channel as FM broadcasting in association with each other (FIG. 4).

The channel list display section 42 converts the channel list created by the channel list creation section 41 into a display signal, and sends the display signal to the main body display BD. However, since the main body display BD has a small display area, it cannot display the entire channel list. Therefore, the display signal is initially set as a signal for displaying information for three channels, and then set to a signal for rewriting all three channels or a signal for sequentially rewriting only one channel in accordance with a user operation. Therefore, the main body display BD that has received the display signal displays information for three channels, and the information is sequentially updated and displayed according to the user's operation. By the way, if a large color display for display is provided, the entire channel list may be displayed. In addition, frequencies may not be displayed in the displayed channel list.

Next, the operation of the vehicle-mounted receiver 1A will be described with reference to FIGS.

For example, it is assumed that the user turns on the power supply of the vehicle-mounted receiving device 1A by the remote controller R and listens to the FM broadcast, and further performs an operation for displaying a channel list.

Then, the vehicle-mounted receiver 1A is turned on. Then, in the in-vehicle receiving device 1A, the GPS signal is received by the GPS antenna GA, and the current position (latitude, longitude) is started to be detected based on the GPS signal. Then, the in-vehicle receiving device 1A searches the area including the detected current position from the channel DB 40, and creates a list of channels receivable in the searched area based on the channel DB 40. Further, in the vehicle-mounted receiver 1A, the channel list is displayed on the main body display BD for each three channels.

Here, the user selects the main body display BD
View the channel list (for 3 channels) displayed in. At this time, the user performs an operation for updating the channel list with the remote controller R when there is no broadcasting station to listen to in the displayed channel list, and when there is a broadcasting station to listen to in the displayed channel list. For remote control R, an operation for selecting the broadcasting station (channel) is performed.

Then, the in-vehicle receiver 1A takes out the FM broadcast signal in the frequency band corresponding to the selected channel from the FM broadcast signals received by the radio antenna RA. Then, the in-vehicle receiving device 1A demodulates the FM broadcast signal in the taken out frequency band, and outputs the sound by the FM broadcast signal from the speakers S, S.

According to the in-vehicle receiving device 1A, no matter where the automobile moves to anywhere in Japan, a broadcasting station that can receive the FM broadcast and the AM broadcast, which are terrestrial radio broadcasts, can be selected as a selectable channel. Can be displayed in a list. Therefore, the user can listen to the terrestrial radio broadcast of the broadcasting station (and eventually the program) he / she wants to listen to by a simple selection operation anywhere in Japan.

Next, the configuration of the vehicle-mounted receiver 1B according to the second embodiment will be described with reference to FIGS. FIG. 5 is an overall configuration diagram of the vehicle-mounted receiving device 1B. FIG. 6 is an internal configuration diagram of the apparatus body 2B. Figure 7
FIG. 6 is a configuration diagram of the channel database 60. Figure 8
FIG. 6 is a diagram showing a channel list. In addition, in the vehicle-mounted receiver 1B, the same components as those of the vehicle-mounted receiver 1A according to the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

The on-vehicle receiving device 1B is mounted on an automobile and receives terrestrial TV broadcast VHF broadcast and UHF broadcast and outputs audio and video. Further, the in-vehicle receiving device 1B receives a GPS signal from a GPS satellite to detect the current position, and can receive V at the current position.
The channel list of HF broadcast and UHF broadcast is output. Therefore, the in-vehicle receiving device 1B is mainly composed of a device body 2B, a television antenna TA, a GPS antenna GA, a remote controller R, a display TD, speakers S, S, and the like.

The device main body 2B is a device attached to the center console of an automobile and controlling the vehicle-mounted receiving device 1B. The device main body 2B has TV antennas TA and GP.
The S antenna GA, the remote controller R, the display TD, and the speakers S, S are wired. In addition, the device body 2B
Various operation buttons OB, remote control receiver R on the front of the
R and a main body display BD are provided. Various operation buttons OB are operated by the user (channel selection,
This is a button for adjusting the volume, etc.). The remote control receiver RR receives an operation signal from the remote control R. The main body display BD is a liquid crystal display and displays a selected channel, volume, and the like.

In the apparatus body 2B, the VHF broadcast signal and the UHF broadcast signal received by the television antenna TA are demodulated, and the VHF broadcast or UHF broadcast of the channel selected by the user is output on the display TD and the speaker S, Sound output from S. Further, the device main body 2B demodulates the GPS signal received by the GPS antenna GA and calculates the current position based on at least three GPS signals. Then, the apparatus main body 2B specifies a broadcast area based on the current position, creates a channel list including broadcast stations and reception frequencies of terrestrial television broadcasting that can be received in the broadcast area, and outputs the list. The internal configuration of the apparatus body 2B will be described later in detail.

The television antenna TA is an antenna which is attached to the outside of the automobile and receives the VHF broadcast signal and the UHF broadcast signal transmitted from the transmitting antenna installed in the radio tower or the like.

The display TD is a large-sized color liquid crystal display attached to the upper part of the center console of an automobile and adapted to convert the display signal transmitted from the apparatus main body 2B into a display image for display. The display TD receives a display signal from the device body 2B and displays a television image, a map by car navigation, or the like.

The internal structure of the apparatus main body 2B will be described with reference to FIG. The apparatus main body 2B mainly includes a VHF signal receiving unit 50, a UHF signal receiving unit 51, a VHF channel selecting unit 52, a UHF channel selecting unit 53, a VHF signal demodulating unit 54, a UHF signal demodulating unit 55, a television audio output unit 56, A television image display unit 57, a GPS signal receiving unit 20,
GPS signal demodulation unit 21, positioning calculation unit 22, current position determination unit 23, map DB 24, navigation map display unit 25, operation signal reception unit 30, channel detection unit 32, channel DB 6
0, a channel list creation unit 61, and a channel list display unit 62. Therefore, the device main body 2B includes various input circuits, various demodulation circuits, various output circuits, storage devices,
It has a CPU and the like. In the second embodiment,
GPS antenna GA, GPS signal receiving unit 20, GPS signal demodulating unit 21, positioning calculating unit 22, and current position determining unit 2
3 corresponds to the present position detection means described in the claims, the VHF channel selection part 52 and the UHF channel selection part 53 correspond to the terrestrial broadcast channel selection means described in the claims, and the channel DB 60 is the patent. It corresponds to the terrestrial channel database described in the claims, the channel list creation unit 61 corresponds to the channel list creation means described in the claims, and the channel list display unit 62 and the display TD are described in the claims. It corresponds to the channel list output means to perform.

The VHF signal receiving section 50 receives the VHF broadcast signal via the television antenna TA and amplifies it.

The UHF signal receiving section 51 receives the UHF broadcast signal via the television antenna TA and amplifies it.

The VHF channel selection unit 52 searches the channel list created by the channel list creation unit 61 for the frequency corresponding to the VHF broadcast channel selected by the user by operating the operation button OB or the remote controller R (see FIG. 8). ). Then, the VHF channel selection unit 52 takes out a VHF broadcast signal having a constant band centered on the frequency searched from the amplified VHF broadcast signal.

The UHF channel selection unit 53 searches the channel list created by the channel list creation unit 61 for the frequency corresponding to the UHF broadcast channel selected by the user by operating the operation button OB or the remote controller R (see FIG. 8). ). Then, the UHF channel selection unit 53 extracts a UHF broadcast signal having a constant band centered on the frequency searched from the amplified UHF broadcast signal.

The VHF signal demodulation section 54 demodulates the extracted VHF broadcast signal in the frequency band to extract an audio signal and a video signal.

The UHF signal demodulation unit 55 demodulates the extracted UHF broadcast signal in the frequency band to extract an audio signal and a video signal.

The television audio output unit 56 converts the audio signal from the VHF signal demodulation unit 54 or the audio signal from the UHF signal demodulation unit 55 into left and right stereo audio signals, and further amplifies the stereo audio signals to produce a speaker. Send to S, S.

The television video display unit 57 converts the video signal from the VHF signal demodulation unit 54 or the video signal from the UHF signal demodulation unit 55 into a display signal and sends it to the display TD.

The map DB 24 stores digital map data for display of car navigation and digital map data for map matching, divided into predetermined areas.

The navigation map display unit 25 extracts from the map DB 24 digital map data for display of an area including the current position (latitude, longitude) determined by the current position determination unit 23. Then, the navigation map display unit 25 converts the map in which the mark indicating the current position is drawn into a display signal based on the digital map data, and further transmits this display signal to the display TD.

In the channel detector 32, the user can
When F broadcast or UHF broadcast is selected by channel, channel information is extracted from the amplified operation signal.

The channel DB 60 is preconfigured in a storage device and divides the whole of Japan into regions (broadcast areas) centered on transmission antennas installed in radio towers and the like,
It stores information about channels of terrestrial television broadcasting for each area. A specific configuration of the channel DB 60 will be described with reference to FIG. In the channel DB 60, as the receiving range of VHF broadcast and UHF broadcast of each region, the region range is set to the north and south limits by latitude and the east and west limits by longitude. Furthermore, channel DB
In 60, a broadcasting station performing VHF broadcasting in the area range set in each area, a reception frequency allocated to the broadcasting station, and a channel allocated to the broadcasting station are set. In addition, in the channel DB 60, a broadcasting station performing UHF broadcasting in the area range set in each area,
The reception frequency assigned to the broadcast station and the channel assigned to the broadcast station are set. In the second embodiment, channels 1 to 12 are secured as VHF broadcasting for each region, and VHF is sequentially started from channel 1.
Broadcasting stations are allocated, UHF broadcasting is performed to secure channels 13 to 100, and UHF broadcasting stations are sequentially allocated from channel 13.

The channel list creation unit 61 searches for which region of the region range set in the channel DB 60 the current position (latitude, longitude) determined by the current position determination unit 23 is located. Then, in the channel list creating unit 61, VHF broadcast and U corresponding to the searched area
All channels of HF broadcasting, broadcasting stations and frequencies of each channel are extracted from the channel DB 60. Further, the channel list creation unit 61 creates a channel list by arranging VHF broadcasts from channel 1 in correspondence with broadcasting stations and frequencies and arranging UHF broadcasts from channel 13 in correspondence with broadcasting stations and frequencies (Fig. 8).

The channel list display section 62 converts the channel list created by the channel list creation section 61 into a display signal and sends the display signal to the display TD. Then, the display TD that has received the display signal displays all the information in the channel list. By the way,
A channel list may be displayed on the body display BD. Also, in the channel list to be displayed,
The frequency does not have to be displayed.

Next, the operation of the vehicle-mounted receiving device 1B will be described with reference to FIGS.

For example, it is assumed that the user turns on the power supply of the vehicle-mounted receiving device 1B by the remote controller R and performs an operation for displaying a channel list in order to watch the VHF broadcast.

Then, the vehicle-mounted receiver 1B is turned on. Then, in the vehicle-mounted receiver 1B, the GPS signal is received by the GPS antenna GA, and the current position (latitude, longitude) is started to be detected based on the GPS signal. Then, the vehicle-mounted receiver 1B searches the channel DB 60 for an area including the detected current position, and creates a list of channels that can be received in the searched area based on the channel DB 60. Furthermore, in the in-vehicle receiving device 1B, the display T
Display the channel list on D.

Here, the user looks at the channel list displayed on the display TD. At this time, the user operates the remote controller R to select a broadcasting station (channel) to watch.

Then, the in-vehicle receiver 1B takes out the VHF broadcast signal in the frequency band corresponding to the selected channel from the VHF broadcast signal received by the television antenna TA. Then, the in-vehicle receiving device 1B demodulates the extracted VHF broadcast signal in the frequency band, displays an image of the VHF broadcast signal on the display TD, and outputs sound from the speakers S and S.

According to the vehicle-mounted receiver 1B, no matter where the car moves to anywhere in Japan, it is possible to select a broadcasting station that can receive the VHF and UHF terrestrial TV broadcasts. Can be displayed in a list. Therefore, the user can watch the terrestrial TV broadcast of the desired broadcasting station (and thus the program) by a simple selection operation anywhere in Japan.

Next, with reference to FIGS. 9 to 12, the configuration of the vehicle-mounted receiving device 1C according to the third embodiment will be described. FIG. 9 is an overall configuration diagram of the vehicle-mounted receiving device 1C. FIG. 10 is an internal configuration diagram of the apparatus main body 2C. Figure 1
1 is a block diagram of the channel database 80. FIG. 12 is a diagram showing a channel list. In addition, in the vehicle-mounted receiver 1C, the same components as those of the vehicle-mounted receiver 1A according to the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

The vehicle-mounted receiver 1C is mounted on a vehicle and receives terrestrial radio broadcasts such as AM broadcasts and FM broadcasts and HEO satellite digital voice broadcasts and outputs them as voice. In addition, the in-vehicle receiving device 1C uses the G
AM and FM broadcasts and HE that can receive the PS signal to detect the current position and receive at the current position
O Outputs a list of satellite digital audio broadcasting channels.
Therefore, the in-vehicle receiving device 1C mainly includes the device main body 2
C, radio antenna RA, HEO satellite antenna HA, G
It is composed of a PS antenna GA, a remote controller R, speakers S, S and the like.

The device main body 2C is a device attached to the center console of an automobile and controlling the vehicle-mounted receiving device 1C. The device main body 2C includes radio antennas RA and HE.
O satellite antenna HA, GPS antenna GA, remote control R
And the speakers S, S are wired. Further, various operation buttons OB, a remote control receiver RR, and a main body display BD are provided on the front surface of the apparatus main body 2C.

Then, the apparatus main body 2C demodulates the AM broadcast signal and the FM broadcast signal received by the radio antenna RA, and outputs the AM broadcast or FM broadcast of the channel (or the tuned frequency) selected by the user to the speaker S, Either the audio is output from S or the HEO broadcast signal received by the HEO satellite antenna HA is demodulated, and the HEO satellite digital audio broadcast of the channel selected by the user is output as audio from the speakers S and S. In addition, the device body 2
At A, the GPS signal received by the GPS antenna GA is demodulated, and the current position is calculated based on at least three GPS signals. Then, in the device main body 2C, the broadcasting area is specified based on the current position, and the broadcasting station of the terrestrial radio broadcasting that can be received in the broadcasting area, the reception frequency, and the HEO.
Create and output a channel list consisting of genres and contents of satellite digital audio broadcasting. The device body 2C
The internal configuration of will be described later in detail.

The HEO satellite antenna HA is an antenna which is attached to the outside of the automobile and receives the HEO broadcast signal transmitted from the HEO satellite.

The internal structure of the apparatus main body 2C will be described with reference to FIG. The device main body 2C mainly includes an AM signal receiving unit 10, an FM signal receiving unit 11, an AM channel selecting unit 12, an FM channel selecting unit 13, and an AM signal demodulating unit 1.
4, FM signal demodulator 15, HEO signal receiver 70, HE
O signal demodulation unit 71, HEO channel selection unit 72, audio output unit 73, GPS signal reception unit 20, GPS signal demodulation unit 21, positioning calculation unit 22, current position determination unit 23, operation signal reception unit 30, channel detection unit 33. , Channel DB8
0, a channel list creation unit 81, and a channel list display unit 82. Therefore, the device body 2C includes various input circuits, various demodulation circuits, various output circuits, storage devices,
It has a CPU and the like. In addition, in the third embodiment,
GPS antenna GA, GPS signal receiving unit 20, GPS signal demodulating unit 21, positioning calculating unit 22, and current position determining unit 2
3 corresponds to the present position detecting means described in the claims, and the AM channel selecting section 12 and the FM channel selecting section 13 correspond to the terrestrial broadcasting channel selecting means described in the claims, and the HEO channel selecting section. Reference numeral 72 corresponds to satellite broadcast channel selecting means described in the claims, channel DB 80 corresponds to the terrestrial channel database and satellite channel database described in the claims, and the channel list creation unit 81 covers the claims. The channel list display means and the main body display BD correspond to the channel list output means described in the claims.

The HEO signal receiving section 70 receives and amplifies the HEO broadcast signal via the HEO satellite antenna HA.

In the HEO signal demodulation section 71, the amplified H
An EO broadcast signal is transmitted as a transport stream (hereinafter, TS
[Transport Stream]) and convert TS to PE
S [Packetized Elementary Stream] Divides into packets.

The HEO channel selection unit 72 extracts PES packets corresponding to the HEO satellite broadcasting channel (and thus the content) selected by the user by operating the operation button OB or the remote controller R from the divided PES packets. Then, the HEO channel selection unit 72 sequentially connects the PES data of the extracted PES packets, and sequentially generates the audio signal of the content broadcast on the HEO satellite broadcasting channel.

The audio output unit 73 converts the audio signal from the AM signal demodulation unit 14 or the audio signal from the FM signal demodulation unit 15 or the audio signal from the HEO channel selection unit 72 into left and right stereo audio signals, Further, this stereo audio signal is amplified and transmitted to the speakers S, S.

In the channel detection unit 33, the user is AM
When broadcasting, FM broadcasting, or HEO satellite digital audio broadcasting is selected by channel, channel information is extracted from the amplified operation signal. Further, the channel detection unit 33 extracts frequency information from the amplified operation signal when the user tunes the AM broadcast or the FM broadcast by frequency.

The channel DB 80 is pre-configured in a storage device and divides the whole of Japan into regions (broadcast areas) centered on transmission antennas installed in radio towers, etc.
In addition to storing information about channels of terrestrial radio broadcasting for each region, information about channels of digital audio broadcasting from HEO satellites is stored. By the way, since the HEO broadcast signal can be received anywhere in Japan, the information regarding the digital audio broadcast channel from the HEO satellite is common throughout the country. A specific configuration of the channel DB 80 will be described with reference to FIG. In the channel DB 80, the north and south limits are set by latitude and the east and west limits are set by latitude as the reception range of AM broadcast and FM broadcast in each region. Further, in the channel DB 80, A within the area range set in each area
A broadcasting station that is broadcasting M, a reception frequency that is allocated to the broadcasting station, and a channel that is allocated to the broadcasting station are set. Further, in the channel DB 80, a broadcasting station performing FM broadcasting within an area range set in each area, a reception frequency allocated to the broadcasting station, and a channel allocated to the broadcasting station are set. Furthermore, in the channel DB 80, for all areas,
It sets all channels broadcast by HEO satellite digital audio broadcasting, the genre (music, news, etc.) of the channels, and simple contents. In the third embodiment, 1 to 100 channels are secured as HEO satellite digital audio broadcasting, and 101 to 150 channels are secured as AM broadcasting for each region, and AM broadcasting stations are allocated in order from 101 channel. , FM broadcasting has secured channels 151 to 200, and FM broadcasting stations are allocated in order from channel 151.

In the vehicle-mounted receiver 1C, the information about the terrestrial radio broadcasting channel and the HEO from each region in Japan are transmitted from the HEO satellite at regular intervals (for example, every day, every week, every month). Information about channels of digital audio broadcasting from satellites (see, for example, FIG. 11).
Information) is broadcast, the information has been received. Then, the apparatus main body 2C updates the channel DB 80 with the latest information at regular intervals based on the received information, while the channel DB 80 stores information about channels of terrestrial radio broadcasting in each region of Japan and digital audio broadcasting from the HEO satellite. Stores information about the channel. In this case, it is not necessary to previously store in the channel DB 80 information regarding channels of terrestrial radio broadcasting for each region (for each broadcasting area) of Japan and information regarding channels of digital audio broadcasting from HEO satellites. Further, since the latest information is broadcast from the HEO satellite at regular intervals, program information for each broadcast time on each channel may be added in addition to the information shown in FIG.

The channel list creation unit 81 searches for which region of the region range set in the channel DB 80 the current position (latitude, longitude) determined by the current position determination unit 23 is located. Then, in the channel list creation unit 81, AM broadcast and FM corresponding to the searched area
All channels of broadcasting, broadcasting stations and frequencies of each channel are extracted from the channel DB 80, and H
All channels of the EO satellite digital audio broadcast and genres and contents of each channel are extracted from the channel DB 80. Further, in the channel list creation unit 81, H
For EO satellite digital audio broadcasting, genre and contents are arranged from channel 1 in correspondence, and further, broadcasting station and frequency are arranged from channel 101 as AM broadcasting, and broadcasting station and frequency are arranged from channel 151 as FM broadcasting. To arrange a channel list (see FIG. 12).

In the channel list display section 82, the channel list created by the channel list creation section 81 is converted into a display signal and the display signal is transmitted to the main body display BD. By the way, in the list of channels to be displayed, HEO
It is not necessary to display the contents of the satellite digital audio broadcast and the frequencies of the AM broadcast and the FM broadcast.

Next, the operation of the vehicle-mounted receiver 1C will be described with reference to FIGS.

For example, it is assumed that the user turns on the power supply of the in-vehicle receiving device 1C by the remote controller R and performs an operation for displaying a channel list in order to listen to the FM broadcast.

Then, the in-vehicle receiver 1C is turned on. Then, in the in-vehicle receiving device 1C, the GPS signal is received by the GPS antenna GA, and the current position (latitude, longitude) is started to be detected based on the GPS signal. Subsequently, the in-vehicle receiving device 1C searches the area including the detected current position from the channel DB 80, and creates a list of channels receivable in the searched area based on the channel DB 80. Further, the in-vehicle receiving device 1C displays a channel list for each three channels on the main body display BD.

Here, the user selects the main body display BD
View the channel list (for 3 channels) displayed in. At this time, the user performs an operation for updating the channel list with the remote controller R when there is no broadcasting station to listen to in the displayed channel list, and when there is a broadcasting station to listen to in the displayed channel list. For remote control R, an operation for selecting the broadcasting station (channel) is performed.

Then, the in-vehicle receiver 1C takes out the FM broadcast signal of the frequency band corresponding to the selected channel from the FM broadcast signals received by the radio antenna RA. Then, the in-vehicle receiving device 1C demodulates the FM broadcast signal in the taken out frequency band, and outputs the sound by the FM broadcast signal from the speakers S, S.

According to the vehicle-mounted receiver 1C, no matter where the vehicle moves throughout Japan, a broadcasting station that can receive the FM broadcast and the AM broadcast, which are terrestrial radio broadcasts, and the HEO satellite digital audio can be received. Broadcast channels can be displayed in a list of selectable channels. Therefore, the user can listen to the radio broadcast of the broadcasting station (and eventually the program) he wants to listen to and the HEO satellite digital audio broadcasting of the genre he wants to listen to by a simple selection operation anywhere in Japan.

Next, referring to FIG. 13 to FIG.
The configuration of the vehicle-mounted receiving device 1D according to the embodiment will be described. FIG. 13 is an overall configuration diagram of the vehicle-mounted receiving device 1D. FIG. 14 is an internal configuration diagram of the device body 2D.
FIG. 15 is a configuration diagram of the channel database 100. FIG. 16 is a diagram showing a channel list. In addition,
In the vehicle-mounted receiver 1D, the same components as those of the vehicle-mounted receiver 1B according to the second embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

The vehicle-mounted receiver 1D is mounted on a car and receives terrestrial TV broadcasts such as VHF and UHF broadcasts and HEO satellite digital TV broadcasts, and outputs audio and video. Further, the in-vehicle receiving device 1D is
It receives a GPS signal from a GPS satellite to detect the current position, and outputs a channel list of VHF broadcasts, UHF broadcasts, and HEO satellite digital television broadcasts that can be received at the current position. Therefore, the in-vehicle receiving device 1D mainly includes the device main body 2D, the television antennas TA and H.
It is composed of an EO satellite antenna HA, a GPS antenna GA, a remote controller R, a display TD, speakers S, S and the like.

The device main body 2D is a device attached to the center console of an automobile and controlling the vehicle-mounted receiving device 1D. The device main body 2D has TV antennas TA and HE.
An O satellite antenna HA, a GPS antenna GA, a remote controller R, a display TD, and speakers S, S are wired. In addition, various operation buttons OB, remote control receiver RR, main body display BD are provided on the front surface of the apparatus main body 2D.
Is provided.

Then, in the apparatus body 2D, the VHF broadcast signal and the UHF broadcast signal received by the television antenna TA are demodulated, the VHF broadcast or UHF broadcast of the channel selected by the user is output on the display TD, and the speaker S, Audio output from S or H
The HEO broadcast signal received by the EO satellite antenna HA is demodulated, and the HEO satellite digital television broadcast of the channel selected by the user is output as video on the display TD and also output as audio from the speakers S, S. In addition, the device body 2
At D, the GPS signal received by the GPS antenna GA is demodulated, and the current position is calculated based on at least three GPS signals. Then, in the device body 2D, the broadcast area is specified based on the current position, and the terrestrial television broadcast station and the reception frequency and the HEO that can be received in the broadcast area.
Creates and outputs a channel list consisting of genres and contents of satellite digital television broadcasting. The device body 2
The internal configuration of D will be described in detail later.

The HEO satellite antenna HA is an antenna which is attached to the outside of the automobile and receives the HEO broadcast signal transmitted from the HEO satellite.

The internal structure of the apparatus main body 2D will be described with reference to FIG. The device main body 2D mainly includes a VHF signal receiving unit 50, a UHF signal receiving unit 51, a VHF channel selecting unit 52, a UHF channel selecting unit 53, a VHF signal demodulating unit 54, a UHF signal demodulating unit 55, an HEO signal receiving unit 90, HEO signal demodulation unit 91, HEO channel selection unit 92, TV audio output unit 93, TV image display unit 9
4, GPS signal reception unit 20, GPS signal demodulation unit 21, positioning calculation unit 22, current position determination unit 23, map DB 24, navigation map display unit 25, operation signal reception unit 30, channel detection unit 34, channel DB 100, channel list. It includes a creation unit 101 and a channel list display unit 102. Therefore, the device body 2D includes various input circuits, various demodulation circuits, various output circuits, a storage device, a CPU, and the like. In the fourth embodiment, the GPS antenna G
A, the GPS signal receiving unit 20, the GPS signal demodulating unit 21, the positioning calculating unit 22, and the current position determining unit 23 correspond to the current position detecting means described in the claims, and the VHF channel selecting unit 52 and the UHF channel selecting unit. 53 corresponds to the terrestrial broadcast channel selection means described in the claims, the HEO channel selection part 92 corresponds to the satellite broadcast channel selection means described in the claims, and the channel DB 100 described in the claims. Corresponding to the terrestrial channel database and the satellite channel database, the channel list creation unit 101 corresponds to the channel list creation means described in the claims, and the channel list display unit 102 and the display TD are described in the claims. It corresponds to the channel list output means.

The HEO signal receiving section 90 receives and amplifies the HEO broadcast signal via the HEO satellite antenna HA.

In the HEO signal demodulation unit 91, the amplified H
The EO broadcast signal is converted into a TS, and the TS is divided into PES packets.

The HEO channel selection unit 92 extracts PES packets corresponding to the HEO satellite broadcasting channel (and thus the content) selected by the user by operating the operation button OB or the remote controller R from the divided PES packets. Then, the HEO channel selection unit 92 successively connects the PES data of the extracted PES packets, and sequentially generates the video signal and the audio signal of the content broadcast on the HEO satellite broadcasting channel.

The television audio output unit 93 converts the audio signal from the VHF signal demodulation unit 54, the audio signal from the UHF signal demodulation unit 55, or the audio signal from the HEO channel selection unit 92 into left and right stereo audio signals. Further, the stereo audio signal is amplified and transmitted to the speakers S, S.

The television video display unit 94 converts the video signal from the VHF signal demodulation unit 54, the video signal from the UHF signal demodulation unit 55, or the video signal from the HEO channel selection unit 92 into a display signal, which is further converted into a display signal. The display signal is transmitted to the display TD.

In the channel detection section 34, the user is
When F broadcast, UHF broadcast, or HEO satellite digital television broadcast is selected for the channel, channel information is extracted from the amplified operation signal.

The channel DB 100 is preconfigured in a storage device and divides the whole of Japan into regions (broadcasting areas) centered on transmission antennas installed in radio towers and the like, and a terrestrial television set for each region. In addition to storing information about broadcast channels, it also stores information about digital television broadcast channels from HEO satellites.
By the way, since the HEO broadcast signal can be received anywhere in Japan, the information on the digital television broadcast channel from the HEO satellite is common throughout the country. Channel DB
A specific configuration of 100 will be described with reference to FIG.
In the channel DB 100, the receiving range of VHF broadcasting and UHF broadcasting of each area is set to the north and south limits by latitude and the east and west limits by longitude.
Further, in the channel DB 100, a broadcasting station performing VHF broadcasting within an area range set in each area, a reception frequency allocated to the broadcasting station, and a channel allocated to the broadcasting station are set. Further, in the channel DB 100, a broadcasting station performing UHF broadcasting in the area range set in each area, a reception frequency allocated to the broadcasting station, and a channel allocated to the broadcasting station are set. Further, in the channel DB 100, all channels broadcast by HEO satellite digital television broadcasting, genres (music, news, etc.) of the channels, and simple contents are set for all regions. In the fourth embodiment, 1 to 100 channels are secured as HEO satellite digital television broadcasts, and 101 to 112 channels are secured as VHF broadcasts for each region, and V channels are sequentially transmitted from the 101st channel.
Assign HF broadcasting station to 113 ~ 20 as UHF broadcasting
Channel 0 is secured, and UHF broadcasting stations are allocated in order from channel 113.

In the vehicle-mounted receiving device 1D, the terrestrial television broadcasting for each region (broadcasting area) in all over Japan is performed from the HEO satellite at regular intervals (for example, every day, every week, every month). Channel information and HEO
When information (for example, the information shown in FIG. 15) about a digital television broadcasting channel from a satellite is broadcast, that information is received. Then, the device main body 2D updates the channel DB 100 with the latest information at regular intervals based on the received information, while the channel DB 100 stores information about channels of terrestrial television broadcasting in each region (broadcast area) of Japan and HEO satellites. Contains information about digital TV broadcast channels from. In this case, the channel DB 100 does not need to store in advance information about terrestrial television broadcasting channels for each region (broadcasting area) in Japan and information about digital television broadcasting channels from HEO satellites. Also, since the latest information is broadcast from the HEO satellite at regular intervals, program information for each broadcast time on each channel may be added in addition to the information shown in FIG.

The channel list creation unit 101 searches for which region of the regional range set in the channel DB 100 the current position (latitude, longitude) determined by the current position determination unit 23 is located. Then, the channel list creation unit 101 extracts from the channel DB 100 all the channels of the VHF broadcast and the UHF broadcast that correspond to the searched area, and the broadcast stations and frequencies of the respective channels, as well as all the channels of the HEO satellite digital television broadcast. The genre and contents of each channel are extracted from the channel DB 100. Further, the channel list creation unit 101 arranges genres and contents from channel 1 in association with each other as HEO satellite digital television broadcasting, further arranges stations and frequencies from channel 101 in association with VHF broadcasting, and 113 as UHF broadcasting. The channels and broadcasting stations and frequencies are arranged in association with each other to create a channel list (see FIG. 15).

The channel list display section 102 converts the channel list created by the channel list creation section 101 into a display signal and sends the display signal to the display TD. By the way, in the list of channels to be displayed, HEO
It is not necessary to display the content of the satellite digital television broadcast or the frequencies of the VHF broadcast and the UHF broadcast.

Next, the operation of the vehicle-mounted receiver 1D will be described with reference to FIGS.

For example, it is assumed that the user turns on the power supply of the vehicle-mounted receiving device 1D by the remote controller R to watch the VHF broadcast and further performs an operation for displaying the channel list.

Then, the vehicle-mounted receiver 1D is turned on. Then, in the vehicle-mounted receiver 1D, the GPS signal is received by the GPS antenna GA, and the current position (latitude, longitude) is started to be detected based on the GPS signal. Then, the vehicle-mounted receiver 1D searches the channel DB 100 for an area including the detected current position, and creates a list of channels receivable in the searched area based on the channel DB 100. Further, the in-vehicle receiving device 1D displays a channel list on the display TD.

Here, the user looks at the channel list displayed on the display TD. At this time, the user operates the remote controller R to select a broadcasting station (channel) to watch.

Then, the in-vehicle receiving device 1D takes out the VHF broadcast signal of the frequency band corresponding to the selected channel from the VHF broadcast signal received by the television antenna TA. Then, the in-vehicle receiving device 1D demodulates the extracted VHF broadcast signal in the frequency band, displays an image of the VHF broadcast signal on the display TD, and outputs sound from the speakers S and S.

According to the vehicle-mounted receiver 1D, no matter where the automobile moves throughout Japan, a broadcasting station that can receive VHF and UHF terrestrial television broadcasts and a HEO satellite digital television can be received. Broadcast channels can be displayed in a list of selectable channels. Therefore, the user can watch the terrestrial TV broadcast of the broadcasting station (and thus the program) to watch and the HEO satellite digital TV broadcasting of the genre to watch by a simple selection operation anywhere in Japan.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be implemented in various forms. For example, in the present embodiment, the channel DB is grouped for each region (broadcast area) and the broadcast area is set as the region range, but the broadcast area may be set for each terrestrial broadcast station. Further, in the present embodiment, the area range of the channel DB is set to the rectangular range of latitude and longitude, but it may be set to the center of latitude and longitude and the receivable distance from the center. Further, in the present embodiment, the broadcasting station and its reception frequency are stored in the channel DB as information on each channel of terrestrial broadcasting, but other information such as affiliated stations and program information may be stored. Further, in this embodiment, the channel DB
Although the genre and contents are stored as the information of each channel of satellite broadcasting, other information such as performers and program information may be stored therein. Further, in the present embodiment, a list of all receivable terrestrial broadcasts and / or satellite broadcasts at the current position is displayed, but AM broadcast, FM broadcast, VHF broadcast, UH
You may make it display the channel list of F broadcast or HEO satellite broadcast unit. Further, the present invention can be applied to other broadcasting such as short-wave broadcasting, BS broadcasting, CS broadcasting, digital terrestrial broadcasting other than this embodiment. Further, in the present embodiment, the current position is detected using GPS, but a road traffic information system such as a beacon or a road-vehicle distance information system may be used.

[0116]

The vehicle-mounted receiver according to the present invention can provide a broadcast channel that can be received at the current position of the vehicle. Therefore, the user can select a channel by a simple operation regardless of where the vehicle moves.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a vehicle-mounted receiving device according to a first embodiment.

FIG. 2 is an internal configuration diagram of the apparatus main body of FIG.

FIG. 3 is a block diagram of the channel database of FIG.

FIG. 4 is a diagram showing a channel list according to the first embodiment.

FIG. 5 is an overall configuration diagram of a vehicle-mounted receiving device according to a second embodiment.

6 is an internal configuration diagram of the apparatus body of FIG.

7 is a configuration diagram of the channel database of FIG.

FIG. 8 is a diagram showing a channel list according to the second embodiment.

FIG. 9 is an overall configuration diagram of a vehicle-mounted receiving device according to a third embodiment.

10 is an internal configuration diagram of the apparatus body of FIG.

11 is a configuration diagram of the channel database of FIG.

FIG. 12 is a diagram showing a channel list according to the third embodiment.

FIG. 13 is an overall configuration diagram of a vehicle-mounted receiving device according to a fourth embodiment.

FIG. 14 is an internal configuration diagram of the apparatus body of FIG.

15 is a configuration diagram of the channel database of FIG.

FIG. 16 is a diagram showing a channel list according to the fourth embodiment.

[Explanation of symbols]

1A, 1B, 1C, 1D ... In-vehicle receiving device 2A, 2B, 2C, 2D ... Device body 12 ... AM channel selection unit (terrestrial broadcast channel selection unit) 13 ... FM channel selection unit (Terrestrial broadcast channel selecting means) 20 ... GPS signal receiving section (current position detecting means) 21 ... GPS signal demodulating section (current position detecting means) 22 ... Positioning calculating section (current position detecting means) 23・ ・ ・ Current position determination unit (current position detection unit) 40, 60 ・ ・ ・ Channel DB (terrestrial channel database) 41, 61, 81, 101 ・ ・ ・ Channel list creation unit (channel list creation unit) 42, 62 , 82, 102 ... Channel list display section (channel list output means) 52 ... VHF channel selection section (terrestrial broadcast channel selection means) 53 ... UHF channel selection unit (terrestrial broadcast channel selection means) 72 ... HEO channel selection unit (satellite broadcast channel selection means) 80, 100 ... Channel DB (terrestrial channel database, satellite channel database) 92. ..HEO channel selection unit (satellite broadcast channel selection means) BD ... Main body display (channel list output means) GA ... GPS antenna (current position detection means) TD ... Display (channel list output means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Satoshi Sugawara             4-6 Kanda Surugadai, Chiyoda-ku, Tokyo             Within Hitachi, Ltd. F-term (reference) 5C025 BA27 CA09 CA18 CB05 DA04                       DA07                 5K061 AA09 BB04 BB08 BB09 BB10                       FF13 GG11 JJ06 JJ07

Claims (9)

[Claims] 1. A vehicle-mounted receiving device, which is installed in a vehicle, receives a broadcast composed of a plurality of channels, and outputs video and / or audio of a selected channel, wherein a current position of the vehicle is detected. A position detecting means, a terrestrial channel database for storing each broadcasting area of terrestrial broadcasting, a channel receivable in the broadcasting area and information of the channel in association with each other, and a current detected by the current position detecting means. A terrestrial broadcasting area is specified by a position, a receivable channel within the specified broadcasting area is extracted from the terrestrial channel database, and a terrestrial broadcasting receivable channel at the current position and its channel The channel list creating means for creating a list of information, and the channel list creating means Vehicle receiving apparatus characterized by comprising: a channel list output means for outputting a list of forms, the. 2. The channel information in the list includes frequency information assigned to each broadcasting station performing the terrestrial broadcasting, and any information of the terrestrial broadcasting based on the list output by the user. When a channel is selected, a terrestrial broadcast that retrieves an arbitrary channel of the selected terrestrial broadcast from the created list and extracts a terrestrial broadcast signal in a frequency band corresponding to the arbitrary channel of the terrestrial broadcast The vehicle-mounted receiving device according to claim 1, further comprising a channel selecting unit. 3. When terrestrial channel information in which each broadcasting area of terrestrial broadcasting, a channel receivable in the broadcasting area and information on the channel are associated with each other is broadcast in satellite broadcasting, the terrestrial broadcasting is performed. The in-vehicle receiving device according to claim 1 or 2, wherein the channel database stores terrestrial channel information received from the satellite broadcast. 4. A satellite channel database for storing a channel receivable by satellite broadcasting and information of the channel, wherein the channel list creating means is based on the terrestrial channel database and the satellite channel database. 4. The vehicle-mounted receiving device according to claim 1, wherein a list of channels that can be received by terrestrial broadcasting and satellite broadcasting and a list of information of the channels is created. 5. The content of each channel of the satellite broadcast is composed of a large number of packets included in the satellite broadcast signal, and when an arbitrary channel of the satellite broadcast is selected by the user based on the output list, The vehicle-mounted receiving device according to claim 4, further comprising satellite broadcast channel selection means for extracting a packet corresponding to an arbitrary channel of the selected satellite broadcast from the satellite broadcast signal. 6. The on-vehicle receiving device according to claim 1, wherein the terrestrial broadcast is AM broadcast and / or FM broadcast in the case of audio broadcast. . 7. The satellite broadcasting is H in the case of audio broadcasting.
The vehicle-mounted receiving device according to claim 4 or 5, which is EO satellite broadcasting. 8. The in-vehicle receiving device according to claim 1, wherein the terrestrial broadcast is VHF broadcast and / or UHF broadcast in the case of television broadcast. . 9. The vehicle-mounted receiving device according to claim 4, wherein the satellite broadcast is HEO satellite broadcast, BS broadcast and / or CS broadcast in the case of television broadcast.