JPH027729A - Selective call radio receiver with display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a selective call radio receiver with a display that is applied to an individual selective call radio receiver.

[Prior Art] The memory of a conventional selective call radio receiver with a display can hold up to a plurality of messages (for example, 5), and when messages exceeding the memory capacity are received, the oldest messages are automatically deleted. It looks like this. Some devices are equipped with a memory protection function (protect) that protects up to multiple messages (for example, 3) that you want to save from being automatically deleted.

However, users do not know the current remaining amount of memory or the amount of memory protection remaining, and have had to call up and confirm messages, or have been informed that there is no remaining memory after messages are automatically deleted.

To solve this problem, there is a remaining memory amount display in which all blocks are displayed when the memory is empty, and as the amount of memory increases, the blocks disappear toward the smaller size. Furthermore, if the user does not notice that a message has been received, some devices display the number of unconfirmed messages in which the memorized message has never been acknowledged.

[Problems and Objectives to be Solved by the Invention] However, since the conventional selective call radio receiver with a display displays the number of memories as blocks, it is not possible to know the remaining amount of memory. Furthermore, since the display section takes up a space dedicated to the remaining memory capacity, there is a problem in that the message display is made as large as possible and is not compatible with the idea of making it easy to see. In addition, when displaying the number of unconfirmed messages, there was a problem in that it was necessary to find unconfirmed messages among the messages.

The present invention is intended to solve these problems, and its purpose is to display the memory usage status for each message using a message display section.

[Means for Solving the Problems] The selective calling radio receiver with display of the present invention has one block of message memo 18 for storing received message data, and a protection memory for protecting the previously memorized messages from being automatically erased. , a memory means comprising at least an unconfirmed memory for storing whether or not a previously memorized message has never been acknowledged, and a message display means for recalling and displaying the contents of the previously memorized message memory at the time of recall. The radio receiver is characterized in that the first storage means includes a plurality of blocks, and includes memory usage status display means for displaying the memory usage status of the first storage unit for each block by the first message display means.

[Examples] Hereinafter, the present invention will be described in detail based on Examples.

FIG. 1 is a block diagram of a selective calling radio receiver with a display according to the present invention. A desired radio frequency is demodulated by a radio section 2 including a discriminator via a built-in antenna 1,
The waveform shaping circuit 3 converts it into a rectangular wave. Then, bit synchronization, frame synchronization, memory control, battery saving control, call drive control, and comparison with the data from P-ROM 4 in which the call number of the receiver is written are performed in the error control phase to determine whether or not it has been called. When the call is confirmed by the decoder 5 that makes a judgment, the alarm drive circuit 6
The alarm device 7, such as a buzzer, LED or motor, notifies the owner of the call.

The message data is also stored in the memory 9 from the decoder 5 via the control section 8. The stored message is sent to the LCD drive circuit 10 via the control unit 8 by an external operation member 12 consisting of switches,
It is displayed on the CD display 13. Control unit 8 and LCD
A clock signal is sent to the drive circuit 10 from a crystal oscillation circuit 11 . A message processing section 14 consisting of a control section 8, a memory 9, an LCD driving circuit 10, and an oscillation circuit 11 is composed of a one-chip microcomputer.

FIG. 2 is a detailed block diagram of the message processing section 14. A system clock is generated by connecting a crystal to the oscillation circuit (O3C) 20.

A frequency divider circuit (DIV) 21 divides the pulse from the oscillation circuit 20 to provide a reference signal for the frame frequency of the LCD drive circuit (LCDD) 22, and a system clock generation circuit (
SC:G) Generates a signal to 23 etc. The system clock generation circuit 23 generates a system clock that controls internal logic.

The control circuit (CTC) 24 is a program counter (PC)
Program memory (ROM) 2 specified by 25
The internal logic is controlled by data No. 6. It also controls logic related to interwoven processing. The program counter 25 is a counter that specifies the address of the program memory 26. The program memory 26 stores programs to be executed, and the program counter 2
The command to be executed is output according to the address specified in step 5. A stack register (STACK) 27 sequentially saves the contents of the program counter every time a subroutine or interwoven occurs. Data pointer (DP) 2
8 specifies the address of the data memory (RAM) 29 at the time of a specific instruction.

The data memory 29 used for storing data is composed of a static RAM with 512 addresses (4-bit configuration). The accumulator (AC) 30, in combination with the logical operation unit (ALU) 31, performs calculations and transfers with other registers and data memory. The logic operation unit 31 performs a logic operation determined for each instruction. The human output boat 32 and the output boat 33 exchange data with the decoder. The human-powered boat 34 is connected to an external operating member. A data decoder (DD) 35 decodes data on the data bus according to a designated decoding function.

Segment PLA circuit (spr.

A) 36 is a circuit for appropriately combining display data according to the layout of the LCD panel.

The LCD power supply circuit 37 creates a bias power supply necessary for the LCD drive circuit 22.

FIG. 3 is a diagram showing the structure of the memory contents of data memo 1/29. In the data memory, one page consists of 16 register groups, and one bank consists of 16 page groups.

It is composed of two banks. That is, 512 (
2116*16) address.

Addresses of pages 0 and 1 of bank O (OOOH-01F
II) is a temporary storage memory for message data. At L/S000H is the data of the first digit (start) of the message, address OOIH is the data of the second digit of the message, -m-address 00FH is the data of the 16th digit of the message, and address 010H is the data of the 16th digit of the message. 17th digit data of message, -m-, 20th digit data of message at address 013H, message NO at address 014H, memory protection at address ○15H
The presence or absence of unconfirmed information is stored in address 016H. Addresses from page 2 of bank 0 to page 9 of bank 1 (020I-1-19FH) are message data memories for 12 pieces, and data storage is similar to addresses 0OOH-01FH. A partial address (IAOH-IABH) of page A of bank 1 stores the status of 12 message memories. In other words, there is no message, there is a message, and the message is a letter of protection R.
(Protect). Address IAOH stores message No. 1, address IAIH stores message No. 2, and -m-address IABH stores message No. 12. If there is even one message, the address IACH (message present flag) is set. Some addresses (I B OH - I B B H) of page B of bank 1 store the unconfirmed status of 12 message memories. The address I B OH stores the message No. 1, the address IBIH stores the message No. 2, and the -m-address I B B H stores the message No. 12. Further, if there is even one unconfirmed data, an address IBCH (unconfirmed flag) is set.

FIG. 4 is a flowchart from message reception to storage of message data in the data memory. When a message is received (step 40), the message data from the decoder is transferred to address 0OOH- of data memo 1.
013H (step 41). Next, the message number of address 014H is set to 1 (step 42).

The received message is registered as message number 1. Next, unconfirmed presence/absence data of address 016H is set (unconfirmed) (step 43). Next, a duplicate message check is performed to compare the received message and the message in the memory (step 44). If the content matches, the message number of the address where the previous message is stored is set to 0 (step 45).
.

In other words, the previous message is deleted. Next, the message number excluding the protected message before the duplicate message number is incremented by 1 (step 46). For example, if the duplicate message number is 3, the number of protected messages is 8 or higher, so message number 3 is
, Message No. set to O and located in address 020 H-19F H, 1. 2 is No, 2.
Revised to 3.

If the contents do not match, add 1 to the message number excluding protected messages (step 4).
7). For example, if two unprotected messages are stored, the message number within address 020H-19FH.

1.2 is No, 2. Revised to 3. Next, check for empty space in address 020H-19FI (step 48). To check for empty space, search for message number "0゛°. If there is no empty space, search for the MAX value of unprotected message number. and set this message number to °゛0'' (step 49).
). Next, write address 0 to the memory of message number “0”.
Store data of OOH-01FH (step 50)
. Next, addresses 0OOH-01FH are initialized (step 51). Next, the process proceeds to index set processing (step 52).

FIG. 5 is a flowchart of index setting.

The index set performs processing to store the status of 12 message memories. A state in which there is no message (data II C11), a state in which there is a message (data
”), message is protected (data n B ++ )
Set the following three states. First, initialize addresses IAOH-IABH in the message status area (data “l C1
’) and the address IAC of the message presence flag.
Resetting H (step 60). Next, the unconfirmed flags of addresses IBOH-IBBH and address IBCH of the unconfirmed area are reset (step 61). Next, address specification (bank=0.page=3) (step 62).

This designates the starting address of the message number. First, message No.=O is checked (step 63). If No=O, add 2 pages (
Step 82), and checks whether page=1 (step 83). When page=1, the bank is incremented by 1 (step 84). and the final address (bank=1
．． Check whether page = B) (step 85)
.

If it is not the final address, the process returns to step 63.

If it is the final address, the contents of message No. 1 (latest message) are displayed (step 86).

HALT (step 87) is performed to stop the operation of the CPU. If it is not No. 20, it is checked whether No.=1 (step 64). When No=1,
Check whether N0=2.

Similarly below---When No=1, message No., 1
Data "A"' is set in the memory address IAOH of (step 65). Then, a message presence flag (address IACH) is set (step 66). This deradder °A” is a 7-segment type a+ of the LCD panel.
t)+f+g segment is turned on (b). If there is no message No. 1, the data "C11" remains.This data II C1
1 is for lighting (-) the 7-segment g segment.

Next, check the unconfirmed data and if it is unconfirmed,
Message No. 1 unconfirmed memory (address IBOH
) (step 68).

Next, an unconfirmed flag (address I B CH') is set (step 81). The process then proceeds to step 82.

The same goes for -m-message No.=8 (step 69)
), the presence or absence of protection is first checked (step 70). When protecting, data “B” is set in memory address IA7H of N018 (step 7).
1). This data "'B" is a 7 segment type C1
This is to light up (b) the d+ e+ g segment. If it is not protected, data "A" is set (step 72). Then, check the unconfirmed presence/absence data and if it is unconfirmed, the unconfirmed memory (address I B 7 )I) of message N018 is checked.
is set (step 74). The same applies to the processing from step 75 to step 80.

As described above, up to 12 messages can be stored, and 5 of them can be protected. When a message is received, only the message number except the protected number is incremented by 1, and the received message is displayed as message No. 011. No protection
, 12. They are set in the order of 11-1-8.

FIG. 6 is a flowchart of index display.

When index display is selected by an external operating member (switch) (step 90), the contents of the memory (address I A OH) of message No. 1 are displayed (step 91). Next, the unconfirmed message No. 1 (address IBOH) is checked (step 92). In order to blink unconfirmed messages at 2 Hz, it is checked whether it is time to turn off the light (step 93).

When the light is turned off, the message No. and 1 digits are turned off (step 94). Next, the contents of the memory (address IAIH) of message N082 are displayed (step 95). Thereafter, the process up to step 99 is performed in the same manner. Then, there is a HALT (step 100) which stops the operation of the CPU.

FIG. 7 shows an embodiment of the display. (A) The figure shows an index display. There are 8 messages stored, 3 of them (No, 10°11.12)
is protected and has four empty spaces in memory. Latest message no.

1 is blinking, indicating an unconfirmed message.
(B) The figure shows the contents of the message No. 1.

1:°1 indicates the message number.

FIG. 8 shows another embodiment of the display. The display contents are the same as those shown in FIG. 7(A). The bottom row shows protected messages.

It should be noted that the embodiment mentioned here is just one embodiment.

[Effects of the Invention] As described above, according to the present invention, since the message display section displays the memory usage status for each message, it is possible to easily know the contents of the memory, the remaining amount of memory, and the remaining amount of memory protection. . Also, to display the usage status of memo 1,
It also has the advantage that the message space can be increased since there is no need to provide a dedicated space.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a selective calling radio receiver with a display according to the present invention. FIG. 2 is a detailed block diagram of the message processing section. FIG. 3 is a diagram showing the structure of the contents of memo 1 in the data memory. FIG. 4 is a flowchart showing an example of a program for storing message data. Fifth
The figure is a flowchart showing an example of a program for performing index setting. FIG. 6 is a flowchart showing an example of a program for displaying an index. FIG. 7 is a diagram showing an example of a display device. (cL) is an index display, (b) is a message display. FIG. 8 is a diagram showing another example of index display on the display. 8...Control unit 9...Data memory 10...L
CD drive circuit 13... Display 14... Message processing unit Figure 2 Figure 4 Figure 6 Procedure amendment (method) 1. Display of incident 1988 Patent application No. 158805
No. 2, Title of the invention Selective calling radio receiver with display 3,
Relationship with the amended person case Patent applicant ◎163 No. 1, 2-4 Nishi-Shinjuku, Shinjuku-ku, Tokyo (236
) Representative Director of Seiko Epson Corporation Tsuneya Nakamura 4, Contact extension 300-302 5, Date of amendment order September 27, 1988 6, Drawings subject to amendment (Figure 3)

Claims (1)

[Claims] One block consists of at least a message memory that stores received message data, a protection memory that protects previously stored messages from being automatically deleted, and an unconfirmed memory that stores whether or not a previously stored message has never been acknowledged. and a message display means for recalling and displaying the contents of the previous message memory at the time of recall; for each block,
1. A selective call radio receiver with a display, characterized in that it is equipped with a memory usage status display means for displaying a message using a message display means.