KR20000033661A - Method and device for updating radio preset memory using satellite positioning system - Google Patents

Abstract

The present invention uses a satellite positioning system (GPS) to acquire the information about the current radio listening area, the satellite positioning system for changing and storing the storage frequency of the preset memory for each region whenever the radio transmission frequency moves to another region The present invention relates to a method and an apparatus for updating a radio preset memory using an apparatus. The method and apparatus for updating a preset memory according to the present invention include a radio broadcasting receiver having a preset memory function for storing a tuning frequency of each broadcasting station. Stores the broadcasting frequency of the broadcasting station, sets the preset memory update period, checks if the set period has elapsed and there is a preset memory update request, and measures satellite position when the set waiting time has elapsed and the preset memory update request is made. Using the GPS system Acquiring location information indicating the audio broadcasting listening area, and when the current radio broadcasting listening area obtained above does not match the area using the frequency stored in the current preset memory as the transmitting frequency, transmitting each broadcasting station in the current radio listening area. The frequency is read and stored sequentially in the preset memory.

Description

Method and device for updating radio preset memory using satellite positioning system

The present invention relates to a preset memory method for storing a tuning frequency in a radio broadcasting receiver. More particularly, the present invention relates to a radio broadcasting region by obtaining information on a current radio listening area using a global positioning system (GPS). The present invention relates to a method and an apparatus for updating a radio preset memory using a satellite positioning system that changes the storage frequency of the preset memory according to each region whenever the frequency moves to another region.

In general, radio (RADIO) broadcasting is allocated to each broadcasting station (for example, KBS2 FM, KBS2 AM, MBC FM, SBS Power FM, ...), and the audio signal is allocated through each allocated channel. The listener receives and listens to the audio signal transmitted from each broadcasting station through the radio.

In addition, modern receivers for receiving such radio broadcasts are provided with a preset memory function in order to facilitate user's operation, which presets the frequency of the user's favorite broadcast to each preset memory. Storing and tuning the stored frequency automatically by the user pressing a key corresponding to each preset memory once.

In radio broadcasting, however, mutual interference occurs between transmission stations that relay the broadcast signal, and therefore different transmission frequencies are used between transmission stations for each channel. In other words, KBS2 FM broadcasting can receive 89.1MHz in Seoul, Incheon area, 91.4MHz in Gyeonggi area, and 85.3MHz in Gwangju area. By transmitting at a different frequency, listeners are listening to radio broadcasts on different frequencies, depending on the region.

Therefore, even if the FM / AM tuner is equipped with a portable small cassette or car audio, the preset memory function can be used to memorize the frequencies of the favorite broadcasts. You can't listen to the broadcast you want by using the set memory function, and you have to find the frequency at which you want to tune by using the tune or auto search.

The present invention has been made to solve the above-mentioned conventional problems, the object of which is to obtain information about the current radio listening area using a satellite positioning system (GPS) to free every time the radio transmission frequency moves to another area The present invention provides a method and apparatus for updating a radio preset memory using a satellite positioning system that changes and stores a storage frequency of a set memory for each region.

1 is a flowchart showing a radio preset memory update method using a satellite positioning system according to the present invention.

2 is a block diagram showing a car audio having a radio preset memory updating apparatus using a satellite positioning system as a temporary embodiment of the present invention.

Fig. 3A shows a memory in the car audio shown in Fig. 2, and Fig. 3B is a schematic diagram showing an example of the preset memory inside the microcomputer.

* Description of the symbols for the main parts of the drawings *

21: FM / AM tuner 22: Tape deck assembly

23: compact disc player (on C) 24: volume control unit

25: power amplifier 26: speaker

27: key input unit 28: memory

29: satellite positioning module (GPS) 30: micom

31: LCD driver 32: LCD

A radio preset memory updating method using a satellite positioning system according to the present invention applied to a radio broadcasting receiver having a preset memory function for storing a tuning frequency of each broadcasting station as a construction means for achieving the above object is

Storing the broadcasting frequency of each broadcasting station for each region and setting a preset memory update period;

Checking whether the set period has elapsed and there is a preset memory update request;

If the set waiting time has elapsed and there is a request for updating the preset memory, the GPS receiver acquires the location information indicating the current radio broadcasting listening area, and the current radio broadcasting listening area obtained above is free. Comparing the frequency stored in the set memory with an area for the transmission frequency;

And if the current radio broadcast listening area does not match the area having the transmission frequency stored in the current preset memory, reading the broadcasting frequency of each broadcasting station in the current radio listening area and sequentially storing them in the preset memory. It is done.

An apparatus for updating radio preset memory using a satellite positioning system according to the present invention, which is applied to a radio broadcasting receiver having a preset memory function for storing a tuning frequency of each broadcasting station as a means for achieving the above object,

A key input section including a preset memory update selection key,

A satellite positioning module (GPS) module for obtaining position information indicating a radio listening area by transmitting and receiving a GPS satellite;

Memory that stores broadcasting frequency by region,

If there is a request for updating the preset memory by checking the key operation of the key input unit, the satellite positioning module is operated to receive the position information indicating the current radio listening area, compared with the current preset memory frequency storage area, and may not match. And a micom for sequentially storing the broadcasting station transmission frequency of the current radio listening area from the memory into a preset memory.

Hereinafter, the configuration and operation of a radio preset memory update method and apparatus using a satellite positioning system according to the present invention will be described in detail with reference to the accompanying drawings.

First, in the radio preset memory update method according to the present invention, as shown in the flowchart shown in Fig. 1, when a predetermined waiting time elapses (101), the auto preset memory update function is performed to perform an auto preset memory update function. Check whether the mode is set (102), and if it is set above, by using the GPS module to obtain the position information for the current radio listening area (103). Then, the obtained information indicating the current radio listening area is stored as a NEW_AREA value indicating a post-movement area and compared with the OLD_AREA value indicating a pre-movement area (105). Here, if the area NEW_AREA after the move and the area OLD_AREA before the move match, they are in the area using the same transmission frequency, and there is no need to perform the preset memory update. However, if the area NEW_AREA after the move and the area OLD_AREA before the move do not match, the transmission frequency is changed to another area. For the next area comparison, change the area OLD_AREA value before the move to the area data set in the area NEW_AREA after the move. (106), the transmission frequency for each broadcasting station of the local station is obtained (107), and the set frequency of the preset memory is changed to the obtained frequency (108). In this manner, when the preset memory update operation is completed, by setting the waiting time until the next preset memory update (109), the preset memory update of one cycle is completed.

In the above, in order to acquire the transmission frequency of each broadcasting station of the current region, the broadcasting frequency of each broadcasting station is stored for each region as shown in FIG. 3A, and the broadcasting frequency of each broadcasting station of the current radio listening region obtained using the satellite position measurement module is obtained. Acquisition is possible by reading.

Fig. 2 is a block diagram showing a car audio having a preset memory update function using a satellite positioning system according to the present invention. The car audio receives the tuned frequency signal under the control of the microcomputer 30. FM / AM tuner 21 for demodulating and converting the signal into baseband audio signal, tape deck assembly 22 for reproducing the tape according to the control of the microcomputer 30, and controlling the microcomputer 30. A compact disc player (hereinafter referred to as CDP) 23 for reproducing the audio signal recorded on the compact disc according to the present invention, and the FM / AM tuner 21 or the tape deck assembly 22 under the control of the microcomputer 30. Or a volume controller 24 for adjusting the audio signal applied from the CDP 23 to a set volume level, a power amplifier 25 for amplifying the audio signal level adjusted by the volume controller 24, and From the power amplifier 25 Speaker 26 for converting and outputting audio signals to sound waves, and a plurality of keys for instructing radio tuning, tape playback / stop, CDP playback / stop, and volume control, and preset memory update mode selection keys. A key input unit 27 for outputting a key signal according to the key operation of the present invention, a memory 28 storing the transmission frequency of a regional broadcasting station as shown in FIG. A preset memory for controlling the operation of each unit in accordance with a satellite positioning module (hereinafter referred to as a GPS module) 29 for receiving position information on a radio listening area and a key signal applied from the key input unit 27; When the update mode selection key signal is input, the current radio listening area acquired by the GPS module 19 is not compared with the radio listening area before moving, and if the current radio listening area is not matched, the current stored in the memory 28 is stored. The microcomputer 30 which reads the broadcasting station transmission frequency of the audio listening area, changes and stores each preset memory value, and the LDC driver 21 and LCD 22 which display predetermined characters under the control of the microcomputer 20; Equipped.

FIG. 3A is a memory map showing frequencies of regional broadcasting stations stored in the memory 28 of FIG. 2, and FIG. 3B shows an example of preset memories M1 to M6 stored in the microcomputer 30. FIG.

The preset memory update operation of the car audio is performed as follows.

In Fig. 2, preset memory sections M1 to M6, which store a tuning frequency favorited by the user in the microcomputer 30, are set as shown in Fig. 3B. In this preset memory, the user inputs the key input section 27. As shown in Figs. The tuning frequencies entered by pressing the key are stored as shown in the figure.

In this state, when the user operates the preset memory update mode selection key provided in the key input unit 27, the key signal of the corresponding key is applied to the microcomputer 30. In this way, if there is a preset memory update request, the microcomputer 30 requests the location information from the GPS module 29 at a predetermined time (as an update period, which can be set by the user), and the GPS module 29 requests satellites. Communication with the mobile station to obtain location information indicating the current radio listening area and apply it to the microcomputer 30. The microcomputer 30, which has received information about the current radio listening area, determines whether the current radio listening area matches the previous area (i.e., when storing the tuning frequency in the preset memory immediately before or before moving). If the storage frequency of the set memory is left without updating, if it does not match, the broadcasting frequency of each broadcasting station of the current radio listening area is read from the memory 28, and the broadcasting frequency is stored in the preset memories M1 to M6 in turn. .

In the above, the determination of whether the current radio listening area coincides with the previous radio listening area may be performed after the initial operation by the microcomputer 30 receiving the current area information from the GPS module 29 and storing it as a previous radio listening area. Whenever the set memory is updated, it is possible to judge by comparing the current radio listening area authorized from the GPS module 29 with the previously stored radio listening area. When the comparison is completed, the newly approved radio listening area is compared with the previous radio listening area. Remember to change as.

For example, as shown in FIG. 3B, the tuning frequencies of each broadcasting station in the Seoul area are stored in the preset memories M1 to M6 of the microcomputer 30, and the vehicle equipped with the car audio is moving to the game area. When the user operates the preset memory update mode selection key, the microcomputer 30 operates the GPS module 29 at a predetermined time to receive the current position, and transmits the tuning frequency stored in the preset memory. If the vehicle enters the Gyeonggi area out of the Seoul area, and the area information authorized from the GPS module 29 is the "game area", the microcomputer 30 plays the game from the memory 28. Each broadcasting station tuning frequency, i.e., 89.3 MHz, 92.1 MHz, 107.9 MHz, ..., is read out and stored in the preset memories M1 to M6 sequentially. That is, 89.3 MHz is stored in the preset memory M1, 92.1 MHz is stored in M2, and 107.9 MHz, ... is stored in M3. Therefore, the preset memory areas M1 to M6 after moving to the playing area are stored with the broadcasting area transmitting frequency of each broadcasting station. Accordingly, the driver tunes directly to the preset frequency of the preset memory even after moving to the playing area. The key input unit) to listen to the broadcast of each broadcasting station.

As described above, according to the present invention, even if the radio listening area is changed, the user can continuously use the automatic tuning that directly tunes to the frequency set in the preset memory without the need for tuning or automatic search by manual operation. Even in regions with different frequencies, there is an excellent effect of finding and listening to the same broadcast with a simple operation without difficulty.

Claims (2)

A radio preset memory updating method using a satellite positioning system applied to a radio broadcasting receiver having a preset memory function for storing a tuning frequency of each broadcasting station, Storing the broadcasting frequency of each broadcasting station for each region and setting a preset memory update period; Checking whether the set period has elapsed and there is a preset memory update request; If the set waiting time has elapsed and there is a request for updating the preset memory, the GPS receiver acquires the location information indicating the current radio broadcasting listening area, and the current radio broadcasting listening area obtained above is free. Comparing the frequency stored in the set memory with an area for the transmission frequency; And if the current radio broadcast listening area does not match the area having the transmission frequency stored in the current preset memory, reading the broadcasting frequency of each broadcasting station in the current radio listening area and sequentially storing them in the preset memory. Radio preset memory update method using satellite positioning system. A radio preset memory updating apparatus using a satellite positioning system applied to a radio broadcasting receiver having a preset memory function for storing a tuning frequency of each broadcasting station, A key input section including a preset memory update selection key, A satellite positioning module (GPS) module for obtaining position information indicating a radio listening area by transmitting and receiving a GPS satellite; Memory that stores broadcasting frequency by region, If there is a request for updating the preset memory by checking the key operation of the key input unit, the satellite positioning module is operated to receive the position information indicating the current radio listening area, compared with the current preset memory frequency storage area, and may not match. And a microcomputer for sequentially storing the broadcasting station transmission frequency of the current radio listening area from the memory into a preset memory.