JPH0535632Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a selective call receiver with a display function.

[Prior art and its problems] Conventional selective calling receivers have a memory for storing a plurality of messages, and when receiving a calling signal designated by the receiver, display the received message and display the received message. There was one that was stored in the above memory so that it could be redisplayed by later operating a switch. Some receivers of this type are further designed to display whether or not an unconfirmed message is stored in the memory.

However, with the above-mentioned receivers, each time the display switch is operated, the received messages are displayed in order from the latest received message to the oldest received message, so even if it is clear that there are unconfirmed received messages, , the display switch must be operated multiple times to display the message.

[Purpose of the invention] This invention was made in view of the above-mentioned circumstances, and aims to provide a selective calling receiver with a display function that can quickly display unconfirmed received messages with a simple switch operation. purpose.

[Key points of the invention] This invention is a selective calling receiver with a display function that can store a plurality of pieces of received message information and re-display it, in which the information is displayed in correspondence with each piece of stored message information. The system also stores information on whether the messages have been sent or not, and when an appropriate command is given, undisplayed message information is searched according to the stored contents, and only the undisplayed message information is displayed.

[Embodiment of the Invention] An embodiment of the invention will now be described with reference to the drawings.

First, FIG. 1 shows the circuit configuration. Reference numeral 11 denotes an antenna, and a calling radio wave including a message received by the antenna 11 is sent to a radio section 12. The radio section 12 performs intermittent reception by driving the decoder section 13, and amplifies and demodulates received radio waves and sends them to the decoder section 13. The decoder unit 13 determines whether or not the called number matches its own identification number, and if they match, it sends a call detection signal along with a message indicating which identification number the called number is, or Call type information indicating the type of call added to the number and message information received following the call number are sent to the CPU 14. The CPU 14 is
Signal from decoder section 13 and switch input section 1
It controls the operation of all other circuits in response to input signals from 5, and is composed of a ROM that stores various control programs, a timer, arithmetic registers, etc. The switch input section 15 includes a main switch 16 that controls power on/off, a reset switch 17 that instructs to cancel midway sound emission or message display, and a memory bank switch 18 that instructs sequential display of stored message information. A silent mode switch 19, etc. that instructs the stop mode of sound emission is connected, and the signal according to the operation is outputted above.
Send to CPU14. The CPU 14 is connected to a clock unit 20 that performs a timekeeping operation and a RAM 21 that stores a plurality of message data, and stores received message information and the like in the RAM 21 along with time data, while transmitting a sound output signal to a speaker 23 via an amplifier 22. , a lighting signal is sent to the LED 25 via the amplifier 24 to notify that a call has been made, and display data such as message information is output to and displayed on the display section 26 constituted by a liquid crystal display element.

When the main switch 16 is turned off,
Power supply to all circuits other than the CPU 14, switch input section 15, clock section 20, and RAM 21 is stopped.

The display section 26 has a display pattern as shown in FIG. 2, for example. In the same figure, in addition to a message display section 26a that displays character information such as message information, the display section 26 includes an unconfirmed information mark indicating that there is message information that has not yet been confirmed among the stored message information. Display body 2
6b, a battery warning display 26c indicating that the voltage of the battery serving as a power supply has fallen below a specified voltage value; a sound emission mark display 26d indicating whether or not the speaker 23 should emit a sound during a call; Number display section 2 that displays the page number of page-managed message information and call type information.
6e is arranged. The message display section 26a
Both the number display section 26e and the number display section 26e are composed of dot matrix, and the message display section 26a is composed of 12
Characters x 2 lines, number display section 26e can display 3 characters.

The RAM 21 is provided with a management data memory 21a shown in FIG. 3A, a message memory 21b shown in FIG. 3B, a page counter, an undisplayed flag counter, a flushing flag register, and the like.

As shown in FIG. 3A, the management data memory 21a
is for storing management data for managing message information. The management data includes an undisplayed flag indicating whether the message has not been displayed yet, a reset flag indicating whether or not the reset switch 17 has been operated to instruct stop of sound emission, and a call flag. The information indicating the type, the message information storage area number in the message memory 21b, and the date and time of incoming call are configured as one set, and multiple sets, for example, 30 sets of management data are stored in this management data memory 21a in the LIFO method. be done.

On the other hand, as shown in FIG. 3B, the message memory 2
1b stores a plurality of sets, for example, 30 sets, of actually received message information in combination with error information indicating which block of the message information has an error.

Here, the signal is received by the antenna 11 and is received by the radio section 12.
The structure of the selective calling signal demodulated will be described below. For example, POCSAG, which has become an international standard,
The selective call signal of this system consists of a header part called a preamble for synchronizing in bit units, and a data part called a batch consisting of one or more consecutive N pieces. One batch consists of a synchronization codeword followed by eight frames, where one frame consists of two
Consists of two code words. The code word is
There are two types of codewords: address (ID-number) codewords and message codewords, both of which consist of 32 bits.

The address code word is a code word for a calling number (address), and consists of 11 address bits with the first bit set to "0", 2 function bits, and 11 parity bits. is added and configured. The function bits can distinguish four types called multi-address calls,
Four different sounds and displays can be made for one ID.

On the other hand, the message code word is a code word for message information, and the first bit is "1".
The message bit consists of 21 bits specified in the address code word and 11 parity bits. If there is a message, it is transmitted following the address code word.

Next, the operation of the above embodiment will be explained.

Now, when the main switch 16 is turned on, the operation signal is sent from the switch input section 15 to the CPU 14.
At the same time, the CPU 14 starts the process shown in FIG. 4. Ru.

In FIG. 4, first, each circuit is initialized as shown in step A01. Here, the display contents of the display section 26, the timer inside the CPU 14, the page counter inside the RAM 21, etc. are initialized. Next, the program proceeds to step A02, where the input signal from the switch input section 15 is read and it is determined whether any of the reset switch 17, memory bank switch 18, and silent mode switch 19 has been operated. Thereafter, in step A03, it is determined whether there is an incoming call. If it is determined that there is no
At step A04, the memory bank switch 18 is activated according to the result of reading the operation switch in step A02.
Determine whether or not the has been operated. If the memory bank switch 18 is not operated at this time,
Return to step A02 above again. In other words, in normal standby mode, step A02 is executed at appropriate time intervals.
The process from ~A04 is executed repeatedly.

If it is determined in step A03 that there is an incoming call, the process then proceeds to step A04 to process the incoming call. The details of this incoming call processing are shown in FIG.

In FIG. 5, first, in step B01, incoming data received by the antenna 11, demodulated by the radio unit 12, and decoded by the decoder unit 13, and the date and time measured by the clock unit 20 at that time are compared. Import into the file register. In this case, the incoming call data includes the above-mentioned call type information, message information indicating message content if a message code word exists, and error information thereof. After setting the initial value "1" to the page counter in RAM21 in the following step B02, step
At B03, it is determined whether the date and time of incoming call stored in the first page of the management data memory 21a is within a predetermined time with respect to the date and time of incoming call for the current call. This determines whether the data acquired in step B01 above is the second data from a repeat call sent within a predetermined period of time, for example 60 seconds.
This is determined based on the timing content of the 60-second timer inside the CPU 14. If the judgment result here is NO, it means that the above incoming data is the first time, so proceed to step B04, import the incoming data to step B01 above, and record the incoming data and the date and time at that point. Store in RAM21. in this case,
The message information and error information of the incoming call data are stored in the empty bank of the message memory 21b, but the call type information and the incoming date and time are stored in the incoming call data already stored in the management data memory 21a.
The message is shifted page by page and stored on the first page along with the bank number in which the message was stored. Note that if 30 sets of data have already been stored in the management data memory 21a, the shift processing will be performed by sequentially erasing the oldest data, but the data with the non-display flag "1" and the data with "0" If they are mixed, shift processing is performed such that data whose undisplayed flag is "0", that is, data whose message information has been confirmed, is deleted first. Thereafter, in step B05, the undisplayed flag in the corresponding management data memory 21a of the RAM 21 is set to "1", and in the following step B06, the undisplayed flag counter is updated by "+1". In the next step B07,
It is determined whether the silent mode is set by operating the silent mode switch 19. If not set, proceed to step B08 and set the amplifier 22 to indicate that a call has been made.
The speaker 23 is driven through the speaker 23 to start producing sound (sound emission). In this case, the ringing sound will be different depending on the type information of the call. Note that if it is determined in step B07 that the silent mode is set, the sound processing in step B08 is not performed. Next, in step B09, the amplifier 24
In addition to performing display processing in response to the incoming call, such as blinking the LED 25, lighting up the unconfirmed information mark display section 26b on the display section 26, and displaying the words "Incoming call" on the message display section 26a, Starts a timer that measures the displayed time. Next, step B10 is reached, and step B09 is reached.
It is determined whether or not the time measured by the timer that started counting has reached a predetermined time, for example, "8" seconds.
If it is determined that the time has not yet expired, then in step B11, it is determined whether the reset switch 17 for stopping the call has been operated and turned on. Here is the judgment result
If the answer is NO, the process returns to step B10.
In this way, the incoming call message continues to be displayed while sampling the reset switch 17, and when the timer reaches the predetermined 8 seconds without the reset switch 17 being operated, the process advances from step B10 to step B12. , the display section 26 and the display area started in step B09 above.
The display on the LED 25 is turned off and this incoming call processing is ended.

Also, if the reset switch 17 is operated while an incoming call is being displayed, this step will be reset.
A decision is made at B11, and then step B13 is reached. In step B13, it is determined whether or not a sound is being generated.
If the sound is on, press this reset switch 17.
Then, in step B14, the sound is stopped. Then, in step B15, RAM2
The corresponding reset flag "1" of the management data memory 21a of No. 1 is set to "1", and then the above steps are performed.
Press B12 to turn off the display and end this incoming call processing. In addition, if it is determined in step B13 that the sound is not in progress, that is, if the silent mode is set by the silent mode switch 19, the processes in steps B14 and B15 are omitted.
Go directly to step B12.

In addition, in step B03 above, the management data memory 2
If it is determined that the difference between the incoming date and time stored in the first page of 1a and the incoming date and time of the current call is within 60 seconds of the predetermined time, the next step is
Proceed to B16. In step B16, the current incoming call data is converted to the previous incoming call data, that is, the call type information stored in the first page and the message information in the message memory 21b corresponding to the bank number stored in the first page. Compare it with the error information and determine whether it matches. If it is determined that they do not match, it means that the current incoming data is different from the previous one, so in step B17 the count value of the page counter is increased to "+".
1” After setting the update, return to step B03 above.
Similar processing is performed on the incoming date and time and incoming data stored in the second page of the management data memory 21a. This process continues until it is determined NO at step B03 or YES at step B16. If it is determined in step B16 that the data match, proceed to step B16.
Proceeding to B18, it is determined whether the corresponding reset flag in the management data memory 21a is set, that is, whether the receiver owner operated the reset switch 17 to stop the ringing at the time of the first reception in the repeat call. to judge. If the reset flag is set to "1", this means that the receiver owner has already confirmed that a call has been made, so no notification processing such as steps B08 and B09 is performed. This incoming call processing is terminated, but if it is determined that the reset flag is not set, the process proceeds to step B19. In step B19, it is determined whether the corresponding non-display flag in the management data memory 21a is set. This undisplayed flag is set when an incoming call is received (step B05), and is reset when the data is displayed in the reading process described later. If this undisplayed flag is not set, it means that the data has already been confirmed. Therefore, please take the following steps.
This incoming call processing ends without performing notification processing such as B08, B09, etc., but if it is determined that the undisplayed flag is set to "1", it means that the data has not been confirmed yet. So,
Processing from step B07 above is performed.

Incoming call processing is performed as described above, and while sound and display processing is performed, incoming call data is stored in RAM 21. When the incoming call data stored in the RAM 21 is read out at step A06 in FIG. 3, the following process shown in FIG. 6 is performed.

FIG. 6 shows details of the read processing by the CPU 14. When reading data, there is a normal mode in which incoming data is displayed sequentially each time the memory bank switch 18 is operated once, and a mode is set by operating the memory bank switch 18 for 2 seconds or more, and incoming data stored in the RAM 21 is set. There is a search data mode in which undisplayed incoming data is searched for and displayed. At the beginning of the process, as shown in step C01, a 2-second timer for counting the operation time of the memory bank switch 18 in the CPU 14 and a 30-second timer for counting the data display time are started. Then step C02
In this step, the page counter is set to an initial value of "1". In the following step C03, it is determined whether the mode is set to search for undisplayed data. If it is determined that the mode is not the search mode but the normal mode, the process proceeds to step C04, where the incoming data is read out according to the count value of the page counter, and whether the corresponding non-display flag is set to "1" or not. Decide whether or not. If it is determined that the number has been set, the process proceeds to step C05, where the non-display flag is reset to "0" and a flashing flag for flashing the number display section 26e is set, followed by step C06. The count value of the non-display flag counter is set to "-1".
Then, in the next step C07, the incoming call data, that is, the call type information and the message information are displayed on the display section 26 together with the incoming date and time information. here,
If the displayed message information is message information with an error, the display digit specified by the error information stored in the message memory 21b corresponding to this message information will be displayed in reverse video. Become. After displaying the data, it is determined in step C08 whether or not the 30 second timer has timed up, that is, whether or not the display has been performed for 30 seconds. If the answer is NO, the process proceeds to step C09, where it is determined whether the reset switch 17, which instructs to stop the display, is on.
If the reset switch 17 has not been operated, then in step C10 it is determined whether the two second timer that measures the operating time of the memory bank switch 18 has timed out. If the determination result here is NO, then in step C11 it is determined whether the memory bank switch 18 has been newly turned on. If it is determined that it has not been turned on again, the process returns to step C08, whereupon the reset switch 17 or memory bank switch 18 is activated.
Steps C08 to C11 until is operated or the 2 second timer or 30 second timer times out.
Repeat the process.

If it is determined that the 30 second timer has timed up in step C08 above, this means that the display has finished for the predetermined time, so the process goes to step C12, where the display is turned off and if the search mode has been set, the search mode is set. The settings are also turned off, and this read processing ends.

Also, if it is determined in step C09 that the reset switch 17 will be operated, the display is turned off and the mode setting of the search mode is turned off in step C12 according to the operation of the reset switch 17 even though the display is still in progress. , this readout process ends.

If it is determined that the 2 second timer has timed up in step C10, the memory bank switch 1
8 has been operated for more than 2 seconds in a row, and the setting of an undisplayed search mode has been instructed, so the mode is set in the following step C13, and then the count value of the page counter is set in step C14. Set "+1" update, then follow the above steps
Leading to C03.

Furthermore, if it is determined in step C11 that the memory bank switch 18 has been newly turned on, this is an instruction to display the next page of incoming data, so in accordance with this instruction, the undisplayed data search mode is reset in step C15. At the same time, after restarting the timing operations of the 2-second timer and 30-second timer, the count value of the page counter is updated by "+1" in step C14, and then the process proceeds to step C03.

If it is determined in step C03 that the mode is the search mode for undisplayed data, the process proceeds to step C16 to determine whether the undisplayed flag "1" corresponding to the incoming data being read according to the count value of the page counter is set. If it is set, the process proceeds to steps C05 and C06 to display the incoming data.
In step C07, the data is displayed. If the non-display flag "1" is not set, the count value of the page counter is updated by "+1" in step C14, and the incoming data stored in the next page of the RAM 21 is read.
The process continues from step C03 onwards.

In this way, in the normal mode, each time the memory bank switch 18 is operated,
In the search mode, only unspecified incoming data can be selected from the RAM 21 and displayed.

In the above embodiment, when setting the search mode, the memory bank switch 18 is pressed continuously for 2 seconds or more, but the present invention is not limited to this, and a dedicated switch for setting the search mode may be provided. good.

[Effects of the invention] As detailed above, according to this invention, information on whether or not the information has been displayed is also stored in correspondence with each message information stored, and when an appropriate command is given, the information is displayed. According to this memory content, undisplayed message information is searched and only the undisplayed message information is displayed, so it is possible to display unconfirmed received messages with a simple switch operation. A call receiver may be provided.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
Figure 2 is a block diagram showing the circuit configuration, Figure 2 is a diagram showing the display pattern configuration of the display section, Figure 3 is a diagram showing the configuration of the management data memory and message memory in the RAM, and Figure 4 is the overall processing content. 5 is a flowchart showing details of the incoming call processing of FIG. 4, and FIG. 6 is a flowchart showing details of the readout processing of FIG. 4. 11...Antenna, 12...Radio section, 13...
Decoder section, 14...CPU, 15...Switch input section, 16...Main switch, 17...Reset switch, 18...Memory bank switch,
19... Silent mode switch, 20... Clock section, 21... RAM, 21a... Management data memory, 21b... Message memory, 22, 24
...Amplifier, 23...Speaker, 25...LED,
26...display section, 26a...message display section,
26b... Mark display with unconfirmed information, 26c
...Battery warning display body, 26d... Sound emitting mark display body, 26e... Number display section.

Claims (1)

[Scope of Claim for Utility Model Registration] Message storage means for sequentially storing message information included in the signal each time a selective call signal designated by the own device is received; and a switch operation for the message information stored in the message storage means. a reading means for sequentially reading message information according to the order stored by the reading means; a display means for displaying message information read by the reading means; and a display means for displaying message information corresponding to each message information stored in the message storage means. display storage means for storing whether or not information has been displayed; command means for commanding the display of message information that has not yet been displayed among the message information stored in the message information storage means; A display function equipped with an undisplayed message display means for searching for undisplayed message information based on the information stored in the display storage means and displaying the undisplayed message information according to a command. Selective call receiver.