JPS6327131A - Communication equipment - Google Patents

Abstract

PURPOSE:To improve the performance of transfer of channel selection information and to remarkably relieve the load of the user by providing a memory device storing variout parameters in advance as a cartridge from the outside of the titled communication equipment attachably and detachably. CONSTITUTION:A memory cartridge 50 is connected to a main body section 52 via a connector 64. A communication equipment channel selection control section 68 receives a control instruction given via a keyboard input discrimination section 74 and a system control section 72 from a keyboard 12 and a control instruction read from a communication parameter storage section 58 of the cartridge 50 and gives a tuning instructed to a communication equipment 66. The read data are displayed on a channel data display section 56. Moreover, a station identification parameter is read from an attribute parameter storage section 60 and displayed on an attribute display section 58. Only a channel representing the attribute is selected, the data are transferred to the control section 68, which controls the communication equipment 66 so as to attain the communication with, e.g. a fire department or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a digital channel selection type communication device, and more particularly to a communication device having a replaceable communication station information storage device.

[Summary of the Invention] The present invention provides a communication system in which a memory device is removably attached from the outside of a communication device, and stores parameters related to modulation methods such as transmitting and receiving frequencies, attributes of transmitting and receiving stations, station names, and other identification parameters. The content is the device.

[Prior Art] For example, some wireless communication devices have conventional frequency information storage mechanisms and others do not, but most of the wireless communication devices that have such storage mechanisms It was necessary to rewrite the memory contents to match the predetermined station. In the case of digital channel selection communication devices, which have become popular in recent years, the storage capacity is enormous, in some cases reaching several hundred stations. It is no longer easy to program these channels, and it is also becoming confusing to select them selectively.

[Problems to be Solved by the Invention] The present invention eliminates such obstacles, improves the portability of the channel selection information of such communication devices, and thereby significantly reduces the user's labor. This makes it possible to supply station identification information that is difficult to input.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a memory device that stores in advance parameters related to modulation methods such as transmitting and receiving frequencies, attributes of transmitting and receiving stations, station names, and other identification parameters. is configured to be removably mounted as a cartridge from the outside of the communication device.

[Operation] With such a configuration, for example, RAM and/or RO
By simply obtaining a memory card such as an M cartridge and installing it in a communication device, it is possible to easily access a large number of stations without programming the communication frequency, and the parameters for station identification are stored in advance. By using a memory card, it is possible to display not only the transmitting/receiving frequencies as in the past, but also characters indicating the names of the five stations and symbols or characters indicating attributes, allowing for more reliable transmission and reception. is possible. Furthermore, when the present invention is applied to a scanner receiving device, it becomes possible to perform scanning that selectively calls one channel using the attribute parameters of the station. For example, by pressing a function key denoting fire radio, a channel having the identification parameter of fire radio can be selectively called up.

Furthermore, modulation methods other than normal AM, FM, etc., such as DS
It is also possible to record modulation parameters with many degrees of freedom, such as in spread spectrum communication using the FH method or the FH method.

[Embodiment of the Invention Figure 1 shows the present invention as a scanner device (scanning type radio receiving device).
FIG. 2 is a schematic diagram of the operation and display section of the device configured to be applied to the device. The scanner 10 includes a key operation section 12, an LED display section 14, a function key operation section 16. It has a speaker section 18 and a memory card mounting position 20. The key operation unit 12 includes a numeric keypad portion 22, upper and lower scan keys 24 and 26, a priority channel (frequency setting key) 28, a manual program operation key 30, and a program clear key 32. The LED display section 14 includes a channel display section 36, a frequency display section 38, a station identification parameter display section 4o, the five keys illustrated in the function key operation section 16, and function key function designation sections 42 associated with each of them. . Memory card installation position 20
contains two memory card insertion ports 44,46. The memory card is preferably a ROM board on which data has been previously written, but a RAM may also be used for use in the data write mode of the device of the present invention, which will be described later. 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 5o is shown connected to a main body 52 which is shown framed. An LED display section 54 is shown connected to the main body section 52. The LED display section 54 is the first
It consists of a channel data display section 56 corresponding to the channel display section 36 and frequency display section 38 shown in the figure, and an attribute display section 58 corresponding to the station identification parameter display section 40. The memory cartridge 50 includes a communication parameter storage section 58, an attribute parameter storage section 60, and a storage power supply 62. This memory cartridge 5o has data stored in advance in a storage section 58, 60, and is stored in the insertion board 44 in FIG.
It is inserted as a memory card into the main body 52 via the connector 64 and electrically connected or photocoupled. The main body section 52 includes a communication device main body 66 including the speaker 18, and a communication device tuning control section 6 including a PLL channel selection circuit.
8. A system control unit 72 having an attribute determination unit 70, a keyboard input determination unit 74 connected to the keyboard 12 and providing a key code to the system control unit 72, and a keyboard input determination unit 74 connected to the host computer 76 and for example, a memory cartridge 50.
a host communication interface circuit 78 for use as a data writing interface when the computer uses a RAM board for data writing; and a display control unit 80 connected to the LED display unit S4.
Contains. The main body 52, except for the communication device 66, can be partially or entirely replaced by program control through a one-chip microcomputer or the like.

The communication device channel selection control unit 68 receives a control command given from the keyboard 12 via the keyboard input determination unit 74 and the system control unit 72 and a control command read from the communication parameter storage unit 58 of the memory cartridge 50. , provides commanded tuning of the communicator 66. This read data drives the channel data display section 56 via the display control section 80 to display the tuned frequency and channel. The attribute parameter, that is, the station identification parameter, corresponding to this frequency data is read from the attribute parameter storage section 60 and is driven to the attribute display section 58 via the display control section 80. Memory cartridge 50 receives power supply for storage section 58.6o via line 84. A line 82 extending from the system control section 72 indicates each storage section 58.
．． 60 address control is performed.

Data write lines 8.6.88 for changing the data content of each storage section of the memory cartridge 50 or for writing new data extend to the respective storage sections 58, 60, respectively. This data may be provided from the keyboard 12 or from the host computer.

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

Taking the case of a scanner that scans a large number of channels as an example, for example, r indicating the attribute of a fire department stored in the attribute parameter storage section 6o in the memory cartridge 50.
In order to selectively scan only the channels marked with fireJ, an address is first output via line 82, and then a check is made to see if a code corresponding to rfireJ exists in the attributes of the current channel. If it does not match, output the address of the next channel sequentially and continue checking. If a match exists, directly or indirectly send this code to the data in the communication parameter storage unit 58 according to the output request inside the system control unit. It is also possible to transfer it to the channel selection control section 68, control the communication device 66, and receive it.

[Effects of the Invention] As explained above, according to the present invention, in response to a predetermined keyboard input or a request from the host side, the system control unit 72 also temporarily stops the control operation of the communication device and performs control operations from the host 76 and 78. Incoming data may be written to the memory cartridge, or data within the memory cartridge may be sent to the host computer 76. This allows the computer, which is capable of more advanced information processing, to perform, for example, frequency data sorting, same frequency projection, naming, attribute specification, etc., and then organize the data back to the communication device. It is possible to transfer the information to the following for convenient use.

[Brief explanation of the drawing]

Fig. 1 is an external view of the operation display section of the device according to the embodiment of the present invention;
The Figure shows a block circuit diagram of the device of Figure 1. In the figure, 20
indicates a memory card mounting position, and 50 indicates a memory cartridge. Patent applicant General Research of Electronics Co., Ltd.

Claims (1)

[Claims] A communication device equipped with a digital channel selection system 68, 72 and display means 14, 54 for parameters related to modulation methods such as transmitting/receiving frequencies, attributes of transmitting/receiving stations, station names, and other identification parameters, a memory in which the above-mentioned parameters are stored in advance. A communication device characterized in that a device 50 is detachably attached to the outside of the communication device.