JPH1198546A - Data receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the data receiver to immediately confirm contents of a plurality of messages without missing when the message data addressed to itself are in existence in a received data frame. SOLUTION: The data receiver is provided with an antenna 11 that receives a radio signal, a reception section 12, a decoder section 13 and a CPU 14 that references its own address data stored in an ID-ROM 18 with a signal received at once and reads message data of sets including the address data when a plurality of the address data addressed to itself and allows a display section 2 to display the message data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data receiver such as a paging receiver for receiving message data.

[0002]

2. Description of the Related Art Recently, a paging service using RCRSTD-43, which can transmit data at a higher speed than the conventional POCSAG system and has a high data capacity per frequency, has been started. FIG. 7 shows this RCRST
It shows a data structure adopted in the D-43 standard.

FIG. 7A shows a data structure 50 transmitted every hour, FIG. 7B shows a cycle structure 51, and FIG.
Indicates a basic frame structure 52 of one frame. That is, data structure 50 consists of 15 cycles numbered from "0" to "14",
Indicates the cycle transmitted at time.

[0006] The cycle structure 51 is composed of “0” to “12”.
Consists of 128 frames numbered up to 7 "
This indicates the number of frames transmitted in 4 minutes. One frame is 1.875 seconds, and data of 32 frames is transmitted in one minute.

The frame structure 52 divides one frame of data into eight parts according to the contents of the data. That is, the frame configuration 52 includes a synchronization section 1S1, frame information FI, synchronization section 2S2, block information section BI, address field AF, vector field VF, message field MF, and idle block IB.

The synchronizing unit 1S1 has a binary FSK-modulated 1
It consists of 112 bits of 600 bps, and the synchronization unit 2S
The modulation method and transmission rate of the frame data transmitted after 2 are as follows: (1) Binary FSK system / 1600 bps (2) Binary FSK system / 3200 bps (3) Quaternary FSK system / 1600 bps (4) Quaternary FSK system / 3200 bps.

The frame information FI is composed of a binary FSK modulated 1600 bps 32-bit word.
The frame number of the main frame, the main cycle number, and information defining transmission display and the number of times of transmission are stored. The synchronizer 2S2 stores timing information for obtaining a reception timing with a modulation method and a transmission rate specified by the synchronizer 1S1.

The block information section BI, the address field AF, the vector field VF, the message field MF, and the idle block IB are subjected to an interleaving process which is transmitted at the modulation method and transmission rate specified by the first synchronization section S1. It is information and is composed of 11 pieces of block data transmitted in units of 160 ms.

The block information section BI is a block for storing information such as a word number and the number of words as a starting point of an address field AF and a vector field VF described later. The address field AF is an address which is an identification number of a paging destination. Is a field for storing. The vector field VF is a field that stores information such as a word number and the number of words that are a starting point of a message field MF to be described later, in a pair with the address field AF. The message field MF is defined by the vector field VF. This is a field for storing message data according to the data format. The idle block IB is an unused block, in which a pattern of “1” or “0” is set.

In the RCRSTD-43 standard, 88 words per frame (1 word = 32 words)
Bit), a plurality of paging receivers can be called in one frame, and different message data can be transmitted to each paging receiver.

FIG. 8 shows an example of the data structure of one frame at that time. In the data after the head synchronization section 1S1, frame information FI, and synchronization section 2S2, a block information section BI, an address field AF, a vector Forming a set of data in a field VF and a message field MF, calling a plurality of paging receivers and transmitting different message data to each paging receiver as described above by storing a plurality of the sets. It will be able to do.

When message data having such a data structure arrives at the corresponding paging receiver, it is usually 1
After the frame, to be exact, all 11 blocks after the synchronization unit 2S2 are fetched and the interleave is recovered, the address data stored in the address field AF of each set received and the self-address stored in the ID-ROM in advance are allocated. The received address data is sequentially collated, and message data addressed to itself is extracted from a set of message fields MF containing the matched address data,
While the display of the message data is controlled according to the vector data, the message data is stored in the message memory.

[0013]

However, when one message frame MF containing message data addressed to itself and a plurality of address fields containing address data addressed to itself are detected in one frame of the received data, the paging receiver will not operate. Although all message data addressed to itself are stored, only the message data that arrives at the latest timing is displayed on the display unit, and the message data that arrives earlier in the same frame is unread (unread). It will be treated as a message.

FIG. 9 illustrates a state of a message memory in which two message data addressed to itself are stored in the paging receiver. The message data of the second message field MF2 stored at the storage address "2" is as follows. Although the read flag “1” is set to indicate that the message is displayed on the display unit, the read data of the message data of the first message field MF1 stored at the storage address “1” is “0”. Indicates that it is not yet displayed on the display unit.

[0015] When one frame contains a plurality of message data addressed to itself, the message data that arrives first is a retransmission of the message data transmitted in the past or is received at a later timing. This is performed in consideration of a high possibility of being the same as the message data.

Therefore, when a plurality of message data addressed to itself is received in one frame as described above, only the last message data is displayed, but other message data is not displayed at the same time as the reception, and unread messages are not displayed. Since the message data is treated as message data and the content cannot be confirmed at that time, if the message data with high urgency arrives as the above-mentioned message data, the message data may be transmitted but not correctly recognized.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to instantly confirm the contents of an incoming frame when there are a plurality of message data addressed to itself. It is to provide a possible data receiver.

[0018]

According to the first aspect of the present invention,
Receiving means for receiving a radio signal, detecting means for detecting a plurality of address data addressed to itself from a signal received by the receiving means at one time, and detecting a plurality of address data addressed to itself by the detecting means; Display means for reading out all message data of a data set including these address data and displaying a message.

With such a configuration, when there are a plurality of message data addressed to itself in an incoming frame, the contents can be immediately confirmed without fail. Claim 2
The invention according to claim 1, wherein the storage means for individually storing the message data, a confirmation means for confirming the reading of the message, and the confirmation means for the message data displayed on the display means. Storage control means for adding the confirmed information to all the message data received once together with the message data in the storage means and storing the message data when read and confirmed by the means. I do.

With such a configuration, in addition to the operation of the first aspect of the present invention, the message data is stored together with information indicating that the contents have been confirmed, so that the message data whose other contents have not been confirmed is stored. And can be stored separately.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention is described by RCRSTD-43.
An embodiment when applied to a paging receiver adopted in the standard will be described with reference to the drawings. FIG. 1 shows an external configuration of the paging receiver 1. A paging receiver 1 is provided with a display unit 2 formed of a liquid crystal display panel on the front surface of a main body case 1a. A power key 3 for turning on / off and resetting the power is provided on a side surface of the main body case 1a. A mode key 4 for selecting each mode is provided at a lower portion of the display unit 2 on the front surface of the main body case 1a. Are provided with a set key 5 for instructing determination and a select key 6 for instructing selection in each mode.

Next, a circuit configuration provided in the paging receiver 1 will be described with reference to FIG. This paging receiver 1 includes an antenna 11, a receiving unit 12, a decoder unit 1
3, CPU 14, buffer memory 15, deinterleave circuit 16, display unit 2, key input unit 17 including power key 3, mode key 4, set key 5, and select key 6, ID-ROM 18, ROM 19, message memory 20 , And a driver 21, including a decoder unit 13, a CPU 14, a buffer memory 15, a deinterleave circuit 16, a display unit 2, a key input unit 17, and an ID-ROM.
The ROM 18, the message memory 20, and the driver 21 are connected by a bus B.

The antenna 11 receives one frame of data (including an address field AF, a vector field VF, and a message field MF) wirelessly transmitted from a transmitting base station (not shown), and receives the data.
Output to

The receiving section 12 is connected to the decoder section 13,
Driven based on the control signal from the decoder section 13, the received data is demodulated and detected. The receiving unit 12 fetches the synchronizing unit 1S1 in the data, and outputs the signals separately for the case of receiving by binary modulation and the case of receiving by quaternary modulation.

The decoder unit 13 rearranges the binary or quaternary digital data input from the receiving unit 12 into 8-bit parallel data and sequentially outputs the same to the bus B.
4 and the address data received by the ID-ROM 18
As a result of collation with address data registered in advance in
When the coincidence detection signal is input, control is performed such that the reception operation is continued for the reception unit 12.

The CPU 14 controls the entire operation of the paging receiver 1 according to a control program stored in the ROM 19, and also controls the data display and storage operations described later.

The buffer memory 15 temporarily stores the read data of one frame, and the message memory 20 stores the message data received by the instruction of the CPU 14 by turning on the power by the power key 3. It is stored continuously regardless of the status.

The deinterleave circuit 16 includes the decoder 1
3 is a circuit that rearranges and outputs (interleave recovery) the parallel data output from 3 in accordance with the received modulation method and transmission rate, and performs error correction processing.

The ID-ROM 18 has a memory area as shown in FIG. , Address data (codeword) 3
2 bits, vector data, setting contents, display control contents,
And a call number are stored in association with each other.

In the above RCRSTD-43 standard,
Even if the incoming address data is the same, it is possible to switch between the A call and the B call by the 3-bit vector data set in the vector field VF in the same frame. For example, in FIG. 3, address data # A +
When the vector data (011) is detected, an A call is made. When the address data # A + vector data (100) is detected, a B call (dual call) is made.

The ROM 19 stores various programs and various data for operating the CPU 14. The driver 21 drives, for example, a speaker 22 for notifying an incoming call by a sound and an LED (light emitting diode) 23 for notifying by lighting or blinking under the control of the CPU 14.

Next, the operation of the above embodiment will be described. FIG. 4 mainly shows the content of processing when the CPU 14 detects address data (codeword) addressed to itself from the received frame and determines that message data has been received. After the data is read and stored in the buffer memory 15 (step S1), a plurality of, for example, two, address fields AF and vector fields V shown in FIG.
The content of F is compared with address data (codeword) and vector data registered in advance in the ID-ROM 18 to determine whether there are two message data addressed to itself (step S2). If it is determined that there is only one message data addressed to itself, instead of two, only the corresponding message data is transferred from the buffer memory 15 to the message memory 20 and stored (step S11).

If it is determined in step S2 that there are two message data addressed to itself, then the contents of the message data stored in the respective message fields MF are compared to determine that they are the same. Is determined (step S3).

If it is determined that the two message data are not the same, then the two message data are transferred from the buffer memory 15 to the message memory 20 and stored individually (step S4). ), The stored two message data are displayed on the display unit 2 together with which of the A call and the B call is called (Step S).
5) A speaker 22 and an LED as appropriate by the driver 21
23 is driven to notify that there is an incoming call (step S6).

FIG. 5 exemplifies a display state on the display unit 2 at this time. In the uppermost line, an antenna symbol AT indicating that an incoming call has been received, and a notification is made by sounding. At the same time as displaying the speaker symbol SP, the current date and time, and the time DT, the message data stored in the first message field MF1 called in the A call is used as the message 1, and the second data called in the B call is used. The message data stored in the message field MF2 is used as message 2 for these two display contents, ie, "A", "message 1", "contact us immediately", "B", "message 2", "waiting at the station in usual time" . "Is displayed.

Here, "A" and "B" indicate which of A call and B call has been received, respectively.
When "Message 1" and "Message 2" detect a plurality of message data addressed to themselves in one read frame,
An icon for identifying each message.

Thereafter, in order to confirm the display, it is determined whether or not a reset by operating the power key 3 is detected within a predetermined time (step S7). Here, if it is determined that the reset has been detected, the user of the paging receiver 1 has confirmed both of the two displayed message data. "1" is set to the read flag portion of each of the plurality of message data (step S8),
Thus, this process ends, and the process shifts to a standby state for the next incoming call.

FIG. 6 shows an example of the storage state of the message memory 20 at this time. The first message field MF1 is stored in the storage address "1" as message data.
Is stored, and the read flag "1" is set. Similarly, the stored address "2" is also stored as message data in the storage address "2". 2, the content of the "message 2" stored in the message field MF2, that is, "waiting at the station in usual time." Is stored, and the read flag "1" is set.

Further, even if the predetermined time has elapsed, the process proceeds to step S7.
If the reset by the operation of the power key 3 is not detected, the user of the paging receiver 1 has not confirmed the two displayed message data. The read flag portion of each of the plurality of message data is reset to "0" (step S9), and the process is completed as described above, and the process shifts to a standby state for the next incoming call.

Further, in step S3, the self-addressed
If it is determined that the contents of the message data are the same, only the last message data, that is, the message data stored in the second message field MF, is transferred from the buffer memory 15 to the message memory 20. The data is transferred and stored (step S10).

After the processing of storing one message data in the message memory 20 in step S10 or step S11, the stored one message data is displayed on the display unit 2 (step S1).
2) The speaker 22 and the LED as appropriate by the driver 21
23 is driven to notify that there is an incoming call (step S13).

Thereafter, in order to confirm the display, it is determined whether or not a reset by operating the power key 3 is detected within a predetermined time (step S14). Here, if it is determined that the reset has been detected, it means that the user of the paging receiver 1 has confirmed the displayed one message data. "1" in the read flag part of the data
Is set (step S15), and the process is ended as described above, and the process shifts to a standby state for the next incoming call.

If it is determined in step S14 that the reset due to the operation of the power key 3 has not been detected,
Since the user of the paging receiver 1 has not confirmed one displayed message data, the read flag portion of the displayed message data in the message memory 20 is reset to “0”. (Step S16), and the process is completed as described above, and the process shifts to a standby state for the next incoming call.

In FIG. 8 and this embodiment, the number of message data that can be stored and transmitted in one data frame is two, but the present invention is not limited to this, The present invention may be applied to a data communication system that stores and transmits message data.

In the above embodiment, the present invention is applied to the RCRS.
Although the case where the present invention is applied to a paging receiver compatible with the TD-43 standard has been described, the present invention is not limited to this, and a plurality of message data addressed to itself can be obtained by one data reception. Of course, such a case is applicable. In addition, the present invention can be variously modified and implemented without departing from the gist thereof.

[0046]

According to the first aspect of the present invention, when a received data frame includes a plurality of message data addressed to itself, the contents can be immediately confirmed without fail. According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the message data is stored together with the information indicating that the content has been confirmed. It can be stored separately.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external configuration according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration according to the embodiment.

FIG. 3 is a view showing a memory area stored in an ID-ROM of FIG. 2;

FIG. 4 is a flowchart showing processing contents of the operation according to the embodiment;

FIG. 5 is an exemplary view showing a display state at the time of an incoming call according to the embodiment;

FIG. 6 is an exemplary view showing storage contents of a message memory according to the embodiment;

FIG. 7 is a diagram showing a data structure adopted in the RCRTD-43 standard.

FIG. 8 is a diagram showing another configuration of one data frame according to the same method.

FIG. 9 is a diagram illustrating the contents of a message memory in a conventional paging receiver.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Paging receiver 2 ... Display part 3 ... Power key 4 ... Mode key 5 ... Set key 6 ... Select key 11 ... Antenna 12 ... Receiving part 13 ... Decoder part 14 ... CPU 15 ... Buffer memory 16 ... Deinterleave circuit 17 ... Key input unit 18 ID-ROM 19 ROM 20 Message memory 21 Driver 22 Speaker 23 LED B Bus

Claims (2)

[Claims] 1. A receiving means for receiving a radio signal, a detecting means for detecting a plurality of address data addressed to itself from a signal received by the receiving means at one time, and an address data addressed to self is detected by the detecting means. Display means for reading all message data of a data set including these address data and displaying a message when a plurality of addresses are detected. 2. A storage means for individually storing the message data, a confirmation means for confirming the reading of the message, and when the message data displayed on the display means is read and confirmed by the confirmation means, 2. The storage control unit according to claim 1, further comprising: a storage control unit that adds confirmed information to all the message data received together with the message data in the storage unit and stores the data.
Data receiver as described.