JPH0526840Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a reception memory channel display device for communication equipment, and is particularly applicable to communication equipment that displays transmitting and receiving frequencies on the same display, and is particularly useful for displaying reception-only memory channels in communication equipment that displays transmitting and receiving frequencies on the same display. The present invention relates to a receive-only memory channel display device suitable for displaying.

(b) Prior Art As a conventional reception memory channel display device for a communication device, for example, one shown in the block diagram of FIG. 4 has been provided.

There are frequencies where wireless communication is permitted and frequencies where it is prohibited. Therefore, it is not possible to transmit on frequencies where wireless communication is prohibited. However, there are cases where it is desired to store a receive-only frequency in a memory channel for which only reception is desired.

In FIG. 4, 11 is a memory write circuit that generates a signal instructing the microcomputer to write a transmission or reception frequency, 12 is a memory channel switching circuit for calling a transmission/reception frequency channel or a reception-only channel from memory, and 13 1 is a microcomputer, 14 is a memory, and 15 is a frequency display that displays the transmission or reception frequency.

To explain the flow of the operation in the block diagram, when the memory write circuit 11 operates, it sends signals such as a write start signal, write transmit/receive frequency data, and an execution signal to the microcomputer 13.

The microcomputer 13 activated by the memory write circuit 11 inputs write transmission/reception frequency data or reception-only frequency data to the memory 14,
Furthermore, the write frequency data is stored in the memory 14 by the execution signal.

When the memory channel switching circuit 12 reads out the frequency channel data stored in the memory 14, the called transmission or reception frequency is displayed on the frequency display 15.

The frequency display displayed on the frequency display 15 is such that when each memorized channel is set to the transmitting state, the transmitting frequency is displayed, and when the receiving state is set, the receiving frequency is switched to the same display. .

Therefore, among the channels stored in the memory, there are also channels in which frequencies for reception only are stored, and in this case, it is not possible to determine whether the frequency displayed on the frequency display 15 is a reception-only channel or not just from the display state. Once the channel was in the transmitting state, if the transmitting frequency was not displayed, it was determined that it was a receive-only channel.

(c) Problems to be solved by the invention However, in the receiving memory channel display device of the conventional communication device described above, the transmitting and receiving frequencies are displayed on the same display as shown in the block diagram of Fig. 4. , so when the reception frequency is displayed, it is difficult to tell whether the display is for a reception-only memory channel or not.

This invention was made in view of the above points, and its purpose is to eliminate the drawbacks of the conventional example, and to make it easy to use when a reception-only memory channel in which only the reception frequency is stored is displayed. The present invention provides a reception-only memory channel display device that allows this to be confirmed.

(d) Means for solving the problem Figure 1 is a functional block diagram of this invention, and the reception-only memory channel display device of this invention is as follows:
In a communication device that has a memory that can store the transmitting frequency and receiving frequency for each memory channel,
write mode selection means having a transmission frequency write mode for writing a transmission frequency into the memory; determining means for determining whether or not the transmission frequency is written in a memory channel read from the written memory; and the determination means. and reception-only channel display means for displaying when the means determines that the transmission frequency is not written.

(e) Effect The operation of this invention will be explained using FIG.

According to this invention, it is determined whether only the receiving frequency or the transmitting frequency is written in the recalled memory channel, and it is determined whether the transmitting frequency is not written (in other words, only the receiving frequency is written). ), it operates to display that the memory channel is a receive-only channel.

(F) Embodiment An embodiment of the reception-only memory channel display device according to this invention will be described with reference to FIGS. 1 to 3.

In the figure, 1 is a memory initialization switch that initializes the data stored in the memory, 2 is a memory write mode selection switch that selects between a mode for writing the transmission frequency and a mode for writing only the receive-only frequency.
3 is a memory write switch that performs a start/execution operation for writing transmitting or receiving frequency data into memory; 4 is a memory channel switching circuit for switching and reading frequency data stored in memory in channel units; 5 is this device. 6 is a memory, 7 is a frequency display that displays frequency data, and 8 is a receive-only frequency display that displays if the frequency is the frequency of a receive-only channel when the frequency display 7 is displaying a frequency. It is a channel indicator.

The microcomputer 5 is composed of a central processing unit that performs data arithmetic processing, a ROM that stores the programs to be executed, and an input/output port. It also has a memory initialization switch 1, a memory write mode selection switch 2, and a memory write switch 3.
The memory channel switching circuit 4 is connected to an input port of the microcomputer 5, while the frequency indicator 7 and the receive-only channel indicator 8 are connected to an output port of the microcomputer 5.

In the reception-only memory channel display device of this invention, after operating the memory initialization switch 1, the frequency data written in the memory 6 by the memory write switch 3 and the memory write mode selection switch 2 is transferred to the memory channel switching circuit 4. When the frequency displayed on the frequency display 7 is the frequency of a receive-only channel, the microcomputer 5 reads the memory 6 so that it is displayed on the receive-only channel display 8. The display is controlled by checking the call data from.

Next, the operation of this device will be explained based on the flowchart shown in FIG.

When this device starts operating, it is determined whether to start writing the transmission or reception frequency to the memory 6 by starting the memory write switch 3 when writing to the memory. (Step S1) When the memory write operation is started, the data of the receiving frequency is input and writing to the memory is executed. (Step S2) When the writing of the receiving frequency into the memory is completed, the memory writing mode selection switch 2 selects whether or not data on the transmitting frequency is also written into the memory. (Step S3) If the memory write mode selection switch 2 is selected to select only the receiving frequency, the flow returns to the start and enters a standby state for the operation in step S1.

When the memory write mode selection switch 2 is set to the side where writing of transmission frequency data is also executed, the transmission frequency data is input from the memory write switch 2 and writing to the memory is executed. (Step S4) When the writing of the transmission frequency data to the memory 6 is completed, the flow returns to the start and enters a standby state for the operation in step S1.

Next, the flow will be explained assuming that the transmitting or receiving frequency data is already stored in the memory 6.
If memory writing is not started in step S1, the flow becomes a flow of reading the memory channel from the memory 6, and the memory channel switching circuit 4 enters selection of switching of the memory channel. (Step S5) When the memory channel is switched by the memory channel switching circuit 4, data for each memory channel is read out from the memory 6, and a check is made to see if there is transmission frequency data. (step
S6, S7) If no transmission frequency data is detected by the transmission frequency data presence/absence check in step S7, the reception-only channel indicator 8 displays an indication that this readout channel is a reception-only memory channel. (Step S8) When the transmission frequency data is detected in step S7, the receive-only channel indicator 8 is not displayed, indicating that this memory channel is not a receive-only channel. (Step S9) Furthermore, after the state of step S8 or step S9, the state is in a state of waiting for the memory writing operation of the next step S1.

(G) Effect of the invention Since the reception-only memory channel display device according to the invention is configured as described above, when a memory channel is selected in a communication device having a memory that can store the transmission frequency and reception frequency for each memory channel, , it is possible to know without actually transmitting whether the selected memory channel stores the transmitting frequency and receiving frequency, or whether only the receiving frequency is stored.
This has the effect of preventing the emission of unnecessary radio waves that violate the Radio Law and improving operability.

Furthermore, it has excellent features such as a simple structure, and can be constructed at low cost, making it easy to implement.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the reception-only memory channel display device according to this invention, in which FIG. 1 is a functional block diagram, FIG. 2 is a hardware block diagram, and FIG. 3 is a flowchart. . FIG. 4 is a block diagram of conventional hardware. Explanation of main symbols: 1...Memory initialization switch, 2...Memory write mode selection switch, 3...
...Memory write switch, 4...Memory channel switching circuit, 5...Microcomputer, 6...
Memory, 7...Frequency display, 8...Reception-only memory channel display.

Claims (1)

[Scope of utility model registration request] In a communication device having a memory capable of storing a transmitting frequency and a receiving frequency for each memory channel, a writing mode selection means having a transmitting frequency writing mode for writing a transmitting frequency in the memory, and a memory channel read from the written memory. A receiver comprising: a determining means for determining whether or not a transmission frequency is written in the receiver; and a receiving-only channel display means for displaying when the determining means determines that a transmitting frequency is not written. Dedicated memory channel display device.