JP2893079B2 - Message receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Technical Field of the Invention The present invention is, for example, page with a display function
Display received messages like a paging receiver
Regarding message receiver.

[0002]

2. Description of the Related Art Conventionally, there is generally known a paging receiver which receives message information following a selected call number and can display the message information. This type of paging receiver stores and retains a plurality of received message information, and can display these in order from the latest information by operating a predetermined readout switch.

[0003] However, the current paging service is:
In order to increase the line usage efficiency, the number of characters of a message that can be transmitted in one call is limited. For example, for a numeric display type paging receiver, 20
For character and character display type paging receivers, it is limited to 40 characters in an 8-bit system. Therefore, the following problem has occurred in the paging receiver in which received messages are displayed in order from the latest message as described above.

[0004] First, when a message to be transmitted is a long sentence exceeding the above character number limit, one continuous message may need to be transmitted a plurality of times. For example, "Please go straight to the site by the next time.
14-00 If it is not convenient, please contact the following number. When transmitting a long message such as "03-123-4567", the transmission data is as follows.

[0005]

(Equation 1)

[0006] Here, "OO" is a fixed phrase stored in the receiver in advance (here, "Please go straight to the site by the next time" or "If the time is inconvenient, the next number "FF" is an identification code for identifying that the next two characters are abbreviated numbers of the above fixed phrase, and "□"
Indicates a space, and a dotted line indicates that two data A and B are continuous. In this example, since one continuous message is composed of 25 characters including one space, when transmitting this to a receiver having a character limit of 20 characters, two data A and B are used. It must be split and sent twice in a call.

[0007] Even in such a case, the message display at the receiver is displayed in order from the newly received message, so that the two data A, divided as described above, are displayed.
B is displayed in the reverse order, that is, the data B is displayed earlier than the data A, and there is a problem that it is difficult to understand the contents of the message.

As another example, there is a case where a message related to a previously transmitted message is transmitted afterward, such as a notification of a change in schedule. For example,
For example, a message "Return by the next time. 14-00" is transmitted, and after a while, a message "Delay. The degree of delay is about (minutes) 120" is transmitted. In such a case as well, the two related messages are displayed in reverse order on the receiver side, so that it is difficult to understand the contents of the messages as in the above example.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to transmit from the same caller.
Related messages are displayed in the appropriate order.
And a message receiver .

[0010]

SUMMARY OF THE INVENTION The present invention, in order to achieve the above object, before
The message specified to be displayed based on the operation of the specified switch
When a specific code is detected from the page information,
Message sent by the same caller before the message information
Message information and before the message information specified for display
Is displayed . The present invention
Operating the predetermined switch to achieve the above object
From the message information specified to be displayed based on the
When a message is detected, the message information
Search for previously received message information for the same call type, and
Display before the specified message information
It is characterized by having .

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a paging receiver according to one embodiment of the present invention.

In FIG. 1, a display unit 2 for displaying various information is disposed above the front of the receiver main body 1. The display unit 2 is composed of a liquid crystal display device or the like, and includes a dot matrix type message display unit 2a for displaying a received message, and a "related message present".
A segment type or dot matrix type call type display portion 2c for displaying a call type that clearly indicates from which caller the message currently displayed is transmitted. Consists of On the lower left of the display unit 2, when a new message is received,
A speaker 3 for outputting a notification sound of a pattern corresponding to the caller for a predetermined time is provided.

Further, two switches S ₁ and S ₂ are provided on the right side of the speaker 3. Here, the switch S ₁ is a readout switch for sequentially displaying a plurality of stored received messages on the display unit 2, and the switch S ₂ is for turning on / off the power supply to the circuit unit related only to the receiving operation. Is the main switch that performs

FIG. 2 is a block diagram showing a circuit configuration inside the receiver of this embodiment. In FIG. 1, an antenna 4 is an antenna that receives a radio signal transmitted from a base station, and the received signal is sent to a receiving unit 5. The receiving unit 5
This circuit detects, amplifies, and demodulates the received signal to generate serial digital data consisting of “0” and “1”. The digital data is supplied to the decoder unit 7. In this embodiment, the POCSAG system is adopted, and the digital data output from the receiving unit 5 is configured as shown in FIGS.

That is, as shown in FIG. 3 (a), the entire transmission signal format in the Poxag scheme is a preamble signal A that is first followed by 101010... Of 576 bits, and a plurality of batch signals that follow this. B, C ...
・ It consists of The preamble signal A is a signal for causing the receiver to recognize that data will be sent from now on and to synchronize the data.

Each of the batch formats of the batch signals B, C,... Has a synchronization code SC as shown in FIG.
, And eight blocks CD _{1 to} CD _8, and each block is composed of two code words. The synchronization code SC and each code word are composed of 32 bits,
Further, each code word is divided into an address code word AC indicating an address and a message code word MC indicating a message.

The address code word AC is shown in FIG.
As shown in (c), it is composed of a message flag, an address bit, a function bit, a BCH parity, and an even parity. The message flag is a flag for identifying whether the next code is an address bit or a message bit. When the code is "0", it indicates an address bit, and when the code is "1", it indicates a message bit. Bits 2 to 19 after the message flag are address bits, which correspond to the selected call number. The next function bit consists of two bits, which are bits for indicating a display mode or a sound mode corresponding to each caller, for example, "00", "01",
There are four types of functions, “10” and “11”.
In this embodiment, the caller of the message is identified based on these address bits and function bits.
The BCH parity from bit 22 to bit 31 is for detecting and correcting an error bit generated inside the code using the 10-bit data.
An even parity is provided in the bit 32, and the even parity indicates whether the total number of bits from the beginning to the end indicating the number of "1" is odd or even, and for example, only one bit "0" If "1" is mistaken with "1", it can be determined by checking the even parity whether bits have been lost or added.

The message code word MC is shown in FIG.
As shown in (d), instead of the address bits and the function bits of the address code word AC, 2
The configuration is such that a message bit consisting of 0 bits is inserted. In this message bit, data of a total of five characters can be stored as one character with four bits,
By making four message bits continuous, a maximum of 20 characters can be transmitted at one time. In the present embodiment, as shown in FIG. 4, the first message code word M following the address code word AC is used.
The _first digit b ₁ (for one character) of the message bit in C ₁ is used as a specific code for indicating “there is a related message”. As the specific code, for example, an undefined code “A” (“1010”) among the numerical data pager codes of the poxag method can be used.

Returning to FIG. 2, the ID-ROM 6 is a fixed memory that stores, for example, two types of address numbers as its own calling number. The decoder unit 7 synchronizes the input of the received data output from the receiving unit 7 and corrects the error, and then sets the address bits of the data (FIG.
(See (c)) is a circuit that determines whether the call number matches the call number
In addition to outputting a reception interrupt command to the CPU 8, message information (see FIG. 3D) received subsequent to the call number is converted into parallel data and output to the CPU 8, while if the call numbers do not match, An instruction to stop reception by the receiving unit 5 is issued.

The CPU 8 receives the above-mentioned reception interrupt command,
A central processing unit for executing various processes based on the key input signal from the key input unit 9 including a read switch S ₁ and the like shown in FIG. 1, memory 1, for example a received message
For example, a process of sequentially writing 0 in the memory or reading a message from the memory 10 and displaying the message on the display unit 2 is performed. The specific processing will be described later.

The memory 10 is a readable and writable memory mainly storing various data such as messages output from the decoder unit 7 in accordance with instructions from the CPU 8, and its detailed configuration is based on FIG. It will be described later. The fixed phrase memory 11 stores various fixed phrases used as messages, for example, as described above, "Please go straight to the site by the next time." Or "Delay. The delay is about (minutes)." This is a read-only memory that stores a sentence, and reads a fixed phrase corresponding to a two-digit abbreviated number included in a received message. The character generator 12 is a circuit that converts a kanji character, a hiragana character, or the like forming the fixed phrase into a display dot pattern when the fixed phrase is displayed in a dot matrix on the message display unit 2a.

The display buffer 13 is a memory for temporarily storing dot pattern data and various display data created by the character generator 12 in accordance with an instruction from the CPU 8. This is a circuit for displaying the stored data on the display unit 2 (same as that shown in FIG. 1). Also, when a message is received, the speaker driver 15
In accordance with an instruction from the CPU 8, the speaker 3 has a pattern corresponding to the call type information indicating the caller of the received message (see the address bits and function bits in FIG. 3C).
(Same as that shown in FIG. 1).
The LED driver 16 is a circuit that emits an LED 17 (omitted in FIG. 1) in a pattern corresponding to the call type information at the same time as the speaker driver 15 drives the speaker 3.

FIG. 5 is a schematic diagram showing the main contents of the memory 10 described above. In the figure, a buffer register X is a register for temporarily storing various information newly received. The clock register Y is a register for storing current time information including hours, minutes, seconds and the like, which is obtained by sequentially counting clock clock signals by the CPU 8. The message register Z includes a plurality of storage areas Z ₁ , Z ₂ , Z ₃
.. Are registers for storing received information in the storage area in order from the newest one. Each of the storage areas Z ₁ , Z ₂ , Z _3, ... Is a call type storage unit D ₁ for storing call type information and a message storage unit D _{2 for} storing messages. If, consist incoming time storage unit D ₃ Metropolitan for storing incoming time information. Here, the call type information is
This is 3-bit data consisting of a combination of two types of call numbers indicated by the address bits shown in FIG. 3C and four types of function data indicated by the function bits. Can be identified.

The display pointer P is a time register Y
And a pointer for specifying one of a plurality of pieces of information stored in each storage area of the message register Z to be displayed on the display unit 2. When P = 0, the content of the time register Y is changed. When P = 1 or more, the contents of each storage area of the message register Z are specified. The related display flag F indicates whether a specific code (see FIG. 4) is included in a newly received message or the display pointer P
Is a flag which is set when a message associated with this message has a specific code and a message related to this message has been received first. During this setting, the marker display section 2b shown in FIG. 1 is turned on. . The timer flags T ₁ and T ₂ are flags used for driving the speaker 3 and the LED 17 for a predetermined time when a new message is received, or for measuring a time for displaying a received message for a predetermined time, Time measurement is started by setting this flag. The timer register T is a register used as a timer when the time is measured. When the message specified by the display pointer P has a specific code, the registers M ₁ and M ₂ are used to search for a message of the same call type as that message.
These are registers for temporarily storing the contents of the display pointer P and the call type information. The message number register N is a register that stores the number of message information stored in the message register Z.

Next, main processing operations of this embodiment will be described with reference to FIGS. FIG. 6 is a flowchart showing the overall processing operation of this embodiment.
Figure 7 is out of the key processing of FIG. 6 (step a _21), is a flow chart showing processing in response to manipulation of the readout switch S _1.

First, in FIG. 6, the halt (H
ALT) state (step a ₁ ), and when a reception interrupt command is sent from the decoder 7 shown in FIG.
The call type information and the message information (see FIGS. 3 and 4) included in the received data and the arrival time information, which is the content of the timekeeping register Y at the time of the reception, are once fetched into the buffer register X (step S1). a ₂ ). Thereafter, all data already stored in the message register Z is shifted down by one stage, and the buffer registers X are stored in the respective storage units D ₁ , D ₂ , D ₃ of the _first storage area Z ₁ which has become empty. Are stored (step a ₃ ).

Subsequently, a notification process is started (step a ₄ ), and a timer flag T ₁ is set (step a ₅ ). In the notification process, a command is given to the speaker driver 15 and the LED driver 16 shown in FIG. 2 to drive the speaker 3 and the LED 17 in a pattern corresponding to the call type information. Thus, the receiver can easily know from which caller the message has arrived. Note that this notification process, step a ₁₂ ~a described later
By the processing of No. _15, the processing is performed only for a predetermined time (here, for example, 8 seconds).

Next, whether the timer flag T ₂ are set, i.e., a predetermined time of the message display (see step a ₁₆ ~a ₁₉₎ it is determined whether the still followed (step a _6), yet the message if displayed, not processed in subsequent steps a ₇ ~a _10. On the other hand, if T ₂ is not set, in the received message, the specific code indicating "related messages Yes" (FIG. 4
Is determined (step a).
₇ ). Here, to set the associated display flag F if there is a specific code (step a _8), not set if there is a specific code. When the related display flag F is set, the marker display section 2b lights up. This allows the receiver owner to know that among the already received messages, there are messages related to the currently received message.

Thereafter, the display process is started (step a ₉ ), and the timer flag T ₂ is set (step a ₁₀ ). In the display process, the received message excluding the specific code and the arrival time are displayed on the message display unit 2a, and the call type corresponding to this message is displayed on the call type display unit 2c. At this time, in the message,
When abbreviated numbers for specifying autotext are included,
The fixed phrase corresponding to the abbreviated number is read from the fixed phrase memory 11, converted into a dot pattern by the character generator 12, and displayed in a dot matrix on the message display unit 2 a.

On the other hand, the halt state (step a ₁ )
For example, when a clock signal for one second is output, a normal clock processing is performed (step a ₁₁ ). In this timekeeping process, a timekeeping clock signal is counted using the timekeeping register Y, and current time data including year, month, day, hour, minute, second, and the like is obtained. Next, the timer flag T ₁
There determines whether it is set (step a _12), if it is set, measurement processing performed by using the timer register T (step a _13). Then, whether the time is up, i.e. to determine whether a predetermined time (e.g. 8 seconds) has elapsed (Step a _14), when the time is up, stop the notification processing started in step a ₄ while the timer is reset flag T ₁ (step a _15). Thereby, the notification time by the speaker 3 and the LED 17 at the time of an incoming call is determined.

Next, another timer flag T ₂
There determines whether it is set (step a _16), if it is set, measurement processing performed by using the timer register T (step a _17). Thereafter, it is determined whether the time is up, that is, whether a predetermined time (for example, 30 seconds) has elapsed (step a ₁₈ ).
Here, if the time is up, specifies the content of the time register Y by setting "0" in the display pointer P (step a _19), whereas, if not yet timed up, the current display pointer The content of P is maintained as it is, and the data specified by P is displayed on the display unit 2 (step a ₂₀ ). Thus, the display time and the incoming call received message, determines the display time of the message displayed by the operation of the readout switch S ₁ to be described later, after being displayed for a predetermined time returns to the normal current time display.

Further, in the halt state in step a _1, if any key switch is sent operated by a key input signal, performs processing corresponding to the operated key switch (step a _21). In particular, the processing when the read switch S ₁ is being operated, on the basis of FIG. 7, specifically described below.

In FIG. 7, first, the related display flag F
There set (step b ₁₂ reference) are being whether determined (step b _1), if it is not set, to specify the next message by one count up display pointer P (step b _2). Then, it is determined whether or not the content of the display pointer P has exceeded the content of the message number register N, that is, whether or not the display pointer P has already designated the last message in the message register Z (step b ₃ ). Here, if P> N, the first message (latest message) is specified by setting “1” to P (step b ₄ ), while if P ≦ N, the current P Keep the content as it is.

Subsequently, the message specified by the above P
To determine whether a specific code is included in the
B_Five), If not included, specify as it is with P
Message, incoming time and call type are displayed (step
Up b₆), Timer flag T _TwoSet (Step
b₇). This display is based on step a₁₆~ A₁₉For processing
This is performed only for a predetermined time (here, for example, 30 seconds).
It is. Therefore, there is no message containing the specific code
If there is no relevant message, read
Out switch S₁Every time is operated, the message register
The latest message stored in the Z
Go.

Further, in the step b _5, when it is judged to contain a specific code, the display pointer P
Stores the contents in the register M _1, stores the call type of the message designated by the P in the register M ₂ (step b _8). Subsequently, P is counted up by one (step b ₉ ), and it is determined whether or not the content of the P exceeds the content of the message number register N (step b ₁₀ ). If it is still P ≦ N, the call type of the message designated by the P is, to determine whether the same and the call type which is stored in the register M ₂ (step b _11). If not identical, the process returns to step b ₉ above,
Same thing repeating steps b ₁₀ and b ₁₁ to appear. That is, it searches for the previous message sent by the same caller. When it finds the same call type in this way, by setting the associated display flag F, lights the marker display section 2b (step b _12). Then, proceed to step b _6, P at this time
Displays the message and call type specified by. This allows the receiver owner to know that a related message from the same caller that sent the message currently being displayed has been subsequently received.

On the other hand, in step b _10, P> N
If it is determined that the, so if not found the same call type and the call type which is stored in the register M _2, in this case, the content of P which has been stored in the register M ₁ again P set (step b _13), and displays the specified message and call type by the P (see step b _6).

The above step b₁In the related table
Indicating flag F is set (step b)₁₂See)
When it is determined, the register M₁Of the P stored in
Is set to P again (step b)₁₄). Then, Seki
The display flag F is reset (step b)._Fifteen),continue
Register M₁And M_TwoClear (step b₁₆)
Followed by the message and call type specified by P
Show (step b₆reference). This allows the same caller
If there is a related message sent from
The message sent earlier is displayed first (the
Tep b_Five, B ₈~ B₁₂See next), next readout switch
S₁Operation, the message sent later is displayed.
You.

[0038] Therefore, according to this embodiment, even when the message associated with the message sent earlier is sent later, when displaying the switch S ₁ reads them, in the appropriate order The message is displayed continuously and the marker display section 2b is turned on for the message displayed earlier to clearly indicate "there is a related message", so that the owner of the receiver can easily understand the contents of those related messages. can do. For example, even if it is necessary to divide a continuous long message into two as described in the description of the conventional example and transmit it, a specific code is added to the head of the message to be sent later. The receiver will display these two related messages in the proper order as described above.

[0039]

As described above, according to the present invention,
Relevant messages sent from the same caller in proper order
Since the message can be displayed in the beginning, the contents of the message can be understood very easily.

[Brief description of the drawings]

FIG. 1 is an external view of a paging receiver according to one embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration inside the receiver of the embodiment.

FIGS. 3A to 3D are data configuration diagrams of a POCSAG method.

FIG. 4 is a data configuration diagram specifically showing a characteristic part of the embodiment in FIG.

FIG. 5 is a schematic configuration diagram showing main contents of a memory 10 shown in FIG. 2;

FIG. 6 is a flowchart illustrating an overall processing operation of the present embodiment.

[7] Among the key processing of FIG. 6 (step a _21), is a flow chart showing processing in response to manipulation of the readout switch S _1.

[Explanation of symbols]

2 display unit 2a message display unit 2b marker display unit 2c call type display unit 3 speaker 5 reception unit 6 ID-ROM 7 decoder unit 8 CPU 10 memory 11 fixed phrase memory Z message register F related display flag S ₁ readout switch

Claims (2)

(57) [Claims] 1. The received message information and caller identification information
Storage means for sequentially storing information and operation of predetermined switches.
The message information stored in the storage means is displayed based on the
And a display means for displaying the message specified by the operation of the predetermined switch.
From sage information, detecting means for detecting a specific code, when the specific code by the detection means is detected, the table
Received before the indicated message information and made a call
Message information having the same user identification information
Search and store the message information in the message specified for display.
Display control means for displaying before the message information.
And a message receiver. 2. The received message information and call type information
Storage means for sequentially storing the
To display the message information stored in the storage means.
A message receiver having A message specified and displayed based on the operation of the predetermined switch
Detecting means for detecting a specific code from the message information; When the specific code is detected by the detecting means,
Received before the specified message information, and call type
Retrieve message information with the same information from the storage means
And stores the message information in the message specified for display.
Display control means for displaying the information before the information.
Characterized message receiver.