JPH0614515Y2 - Communication device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital channel type communication device, and more particularly to a communication device having an exchangeable communication station information storage device.

[0002]

2. Description of the Related Art For example, some wireless communication devices have a frequency information storage mechanism and some do not, and most of the wireless communication devices have a frequency information storage mechanism. It was necessary to rewrite the memory contents according to the predetermined station. In recent years, in the case of a digital channel selection type communication device which has become very popular in recent years, there are some examples in which the storage amount is as large as several hundreds of stations. Are no longer easy to program, and even more confusing when making selective channel selections.

[0003]

The present invention eliminates such obstacles, improves the portability of such communication channel selection information, and greatly reduces the labor of the user. This makes it possible to supply station identification information that is difficult to input.

[0004]

In order to solve the above problems, the present invention provides a memory device in which parameters relating to modulation schemes such as transmission / reception frequency, attributes of transmission / reception stations, station names and other identification parameters are stored in advance. The cartridge is configured to be detachably mounted from the outside of the communication device.

[0005]

With such a configuration, a memory card such as a RAM and / or a ROM cartridge can be simply obtained and mounted in a communication device to easily access a large number of stations without programming the communication frequency. By using a memory card in which the parameters for station identification are stored in advance, not only the frequency of transmission and reception as in the past, but also the character indicating the name of the station or the symbol or character indicating the attribute Can be displayed, and more reliable transmission / reception can be performed. Also, when the present invention is applied to a scanner receiving apparatus, it is possible to perform scanning by selectively calling a channel by using an attribute parameter of a station. For example, a channel having the identification parameter of the fire fighting radio can be selectively called by pressing a function key meaning the fire fighting radio. Further, it is also possible to record modulation parameters with a high degree of freedom, such as spread spectrum communication using the DS method or FH method other than the usual AM and FM modulation methods.

[0006]

1 is a schematic view of an operation and display section of the scanner device (scanning radio receiver) constructed by applying the present invention. The scanner 10 includes a key operation unit 12, L
It has an ED display unit 14, a function key operation unit 16, a speaker unit 18, and a memory card mounting position 20. The key operation unit 12 includes a ten-key unit 22, upper and lower scan keys 24 and 26, a priority channel (frequency setting key) 28, a manual program operation key 30, a program
And a clear key 32. The LED display unit 14 includes a channel display unit 36, a frequency display unit 38, a station identification parameter display unit 40, and the function keys associated with the illustrated five keys of the function key operation unit 16.
And a key function designating section 42. The memory card mounting position 20 has two memory card insertion ports 44,
Includes 46. The memory card is preferably a ROM board on which data has been written in advance, but RAM can also be used for use in the data writing mode of the device of the present invention described below. For this purpose one insert port 46 may be used for writing RAM.

FIG. 2 shows a block circuit diagram of an apparatus according to an embodiment of the present invention. The memory cartridge 50 is shown connected to a framed body 52. An LED display section 54 is shown connected to the main body section 52. The LED display unit 54 includes a channel data display unit 56 corresponding to the channel display unit 36 and the frequency display unit 38 of FIG. 1 and an attribute display unit 58 corresponding to the station identification parameter display unit 40. The memory cartridge 50 includes a communication parameter storage unit 58, an attribute parameter storage unit 60, and a storage holding power supply device 62. This memory cartridge 50 is a storage unit 5.
Data is stored in advance in 8, 60, and is inserted as a memory card into the insertion port 44 of FIG. 1 and is electrically or photo-coupled to the main body 52 via the connector 64. The main body 52 includes a communication device main body 66 including the speaker 18, a communication device tuning control unit 68 including a PLL tuning circuit, and a system control unit 72 having an attribute determination unit 70.
A keyboard input determination unit 74 connected to the keyboard 12 for giving a key code to the system control unit 72, connected to a host computer 76 and, for example, when the memory cartridge 50 uses a RAM board for writing data, its data writing interface. It includes a host communication interface circuit 78 for use as a display, and a display control unit 80 connected to the LED display unit 54. The main body 52 may be partially or wholly replaced by program control except for the communication device 66 through a one-chip microcomputer or the like.

The communication device channel selection control unit 68 is a control command given from the keyboard 12 via the keyboard input determination unit 74 and the system control unit 72 and the memory cartridge 5.
Upon receiving the read control command from the communication parameter storage unit 0 of 0, the commanded tuning of the communication device 66 is given.
This read data drives the channel data display unit 56 via the display control unit 80 to display the tuning frequency and the channel. The attribute parameter corresponding to the frequency data, that is, the station identification parameter is read from the attribute parameter storage unit 60 and drives the attribute display unit 58 via the display control unit 80. Memory cartridge 50
Receives power supply for the storage units 58, 60 via line 84. Line 82 extending from system control unit 72
Controls the addresses of the storage units 58 and 60.

The data writing lines 86 and 88 for changing the data content of each storage unit of the memory cartridge 50 or writing new data are provided in the respective storage units 5.
It grows to 8 and 60 respectively. This data is for keyboard 1
2 or from the host computer.

In the operation of the apparatus of this embodiment, the stored single or plural channel data and associated station identification data are sequentially read out from the memory cartridge 50 under the address control. For scanner purposes, these data are used with the feedback signal on line 90 from the communicator 66. That is, if there is no signal information at the tuning frequency, the data is read out so that the address signal is controlled by the address signal on the line 82 so as to be scanned at the next channel frequency.

In the case of a scanner that scans a large number of channels, for example, only the channels with "fire" indicating the attribute of the fire department in the attribute parameter storage unit 60 in the memory cartridge 50 are selected. In order to scan the data, the address is first output via the line 82, and then it is checked whether or not the code corresponding to "fire" exists in the attribute of the current channel. If not applicable, output the address of the next channel in sequence,
Continue to check, and if there is a corresponding one, the code of the communication parameter storage unit 58 is directly or indirectly obtained from this code according to the output request inside the system control unit.
It is also possible to transfer to 8 and control the communication device 66 to receive.

[0012]

As described above, according to the present invention, the system control unit 72 also suspends the control operation of the temporary communication device from the hosts 76 and 78 in response to a predetermined keyboard input or a request from the host side. It is also possible to write the incoming data to the memory cartridge or, conversely, send the data in the memory cartridge to the host computer 76. This allows, for example, sorting of frequency data, rejection of the same frequency, designation of naming, designation of attributes, etc., inside the computer capable of more advanced information processing, and then organizing the data again in the communication device. It can be transferred to the side for convenient use.

[Brief description of drawings]

FIG. 1 is an external view of an operation display unit of an apparatus according to an embodiment of the present invention.

FIG. 2 shows a block circuit diagram of the device of FIG.

[Explanation of symbols]

 20 memory card mounting position 50 memory cartridge 54 display device 68 tuning system

Claims (1)

[Scope of utility model registration request] 1. A keyboard section (12), digital channel selection systems (68), (72) , display means for parameters relating to modulation methods such as transmission / reception frequency, transmission / reception station attributes, station names and other identification parameters ( 14) , display section (5
4) and a main body having an interface circuit (78)
(52) and a host computer (76) connected to the interface circuit ,
A connector section (64) is provided in the main body section, and a memory device (50) in which the above parameters are stored in advance is provided in the connector section.
On the other hand, the communication device can be instructed from the outside of the communication device, and the host computer can control writing and reading of data including the parameters and the like with respect to the memory device (50).