JP3062842B2 - Information receiving device - Google Patents

Abstract

PURPOSE:To avoid confusion with a usual message even when control information has an error by avoiding control information when an error is detected in the control information received together with a control identification code and implementing function control when no error is detected. CONSTITUTION:A CPU 5 discriminates to which of three ID codes stored in an ID-ROM 4 a received ID code is coincident based on a signal outputted from a decoder section 3. When it is discriminated that the reception signal is the usual individual calling ID code, a reception message sent succeedingly from the decoder section is fetched and stored in a RAM 7. Moreover, when it is discriminated that the reception signal is the service information ID code, the reception data are fetched and stored in a RAM 6. When it is discriminated that the reception signal is the control ID code, its function control information is fetched. When the reception data include an error, the data are aborted and when no error is in existence, the control processing based on the reception data is implemented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a message receiving function.
For information receiving devices such as paging receivers , more specifically, information for display such as messages as information
In addition, the present invention relates to an information receiving apparatus capable of receiving control information for controlling a function of the information receiving apparatus .

[0002]

2. Description of the Related Art In recent years, services for providing various types of information to specific contract users using a wireless paging system have begun to be implemented.

In a paging receiver with a message receiving function used in such a system, the same identification code (ID code) as another receiver that receives the same pay information is set as a call number code. A plurality of receivers can receive the same information in one transmission.

[0004] However, if the ID code is only the call number for receiving the pay information, it is impossible to prevent the illegal reception of the pay information due to the non-payment of the reception fee. Therefore, the ID for pay information reception is provided to the paging receiver.
In addition to the code, set an ID code for individual call to receive a message addressed to a normal individual, and provide an information service provider or a paging service requested by the information service provider for unauthorized reception There has been proposed a method for preventing unauthorized reception by transmitting a control code for stopping reception of pay information as message data added to an ID code for individual calling.

A message for adding a new ID code for receiving other pay information and the like and a control code for writing the ID code to the ID-ROM of the paging receiver to the ID code for individual calling. A method of transmitting the information as information and setting a new ID code in the paging receiver has also been proposed.

[0006] However, in each of the above methods, control information for stopping reception of pay information and setting a new ID code is transmitted as message information of an individual call signal. In such a case, there is a problem that it is difficult to distinguish the error from the normal message information.

In general, in a paging receiver with a message receiving function, when the number of error bits of a received message is equal to or more than the number of bits that can be corrected by an error correction circuit, it is clearly indicated that the received message data may have an error. However, if an error occurs in the received control information, the message is displayed in the same manner, and there is a problem that the message is easily confused with a normal message.

[0008]

SUMMARY OF THE INVENTION An object of the present invention, even if there is an error in the control information for controlling the function of the information receiving apparatus, to provide a normal display information <br/> and confused fear no information receiver is there.

[0009]

Gist of the present invention SUMMARY OF THE INVENTION detects a bit error in the received information data, when there is an uncorrectable bit error, the information received to display the received information to specify that the possibility of error is present in the apparatus, separately from the first identification code for receiving the display information, providing the second identification code for receiving control information for controlling the function of the information receiving apparatus, a second identification for control If an error is detected in the control information received together with the code, the received control information is discarded, and if no error is detected, the function of the information receiving apparatus is controlled based on the received control information , for example , adding or rewriting a calling number. , is that you have to perform the control of the cancellation and the like.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of a paging receiver according to an embodiment of the present invention. In this embodiment, on / off control of pay information reception is performed by control information transmitted as message data from a radio base station. Is shown.

In FIG. 1, an antenna 1 receives a radio signal transmitted from a radio base station, and a signal received by the antenna 1 is sent to a receiving unit 2. Receiver 2
Detects, amplifies, demodulates, and converts the received signal from the antenna 1 into serial digital data consisting of "0" and "1".

The decoder unit 3 analyzes the data received by the receiving unit 2 and compares whether or not the address code (call number) matches three ID codes stored in an ID-ROM 4 described later. The comparing unit detects whether there is a bit error in the message data received following the call number, and corrects the error bit when the number of bit errors is equal to or less than a predetermined number (usually one). An error correction unit that corrects the bit data.

The ID-ROM 4 is an EEPROM (Electr
ID code used for normal individual call, ID code used for receiving service information, and control ID for control information reception that controls the function of the paging receiver. Three ID codes of the codes are stored.

The decoder unit 3 receives the call number received by the receiving unit 2 and the three I information stored in the ID-ROM 4.
D code and a match detection signal indicating that the calling number matches any of these three ID codes;
Information indicating which ID code of the three ID codes is matched is sent to the CPU 5. When the ID codes match, the received message data is subjected to error bit correction processing, and then sent to the CPU 5 with a mark bit indicating whether there is an uncorrectable error.

In the reception standby state, the CPU 5 determines whether or not there is an incoming call, that is, whether or not a coincidence detection signal has been received from the decoder unit 3 or whether or not a key has been input from the key input unit 6. ing.

If there is an incoming call and a normal individual call ID code coincidence detection signal is sent from the decoder unit 3, the CPU 5 adds the individual call ID code and sends the received data. And the mark bit data are fetched from the decoder section 3 and these received data are
The information is stored in the received message storage area of M7, the reception is notified from the speaker 8, and the display unit 9 displays the received data. When the content of the mark bit data added to the received data indicates that there is an error, the display of the received data blinks or the like to clearly indicate that there is an error.

When a coincidence detection signal of an ID code (an ID code used for receiving service information) common to another paging receiver is sent from the decoder unit 3, the CPU 5 sets the ID code to the current value. It is determined whether or not the reception is stopped. If the reception is stopped, the process returns to the reception standby state. If the reception is not stopped, the reception data and mark added to the service information reception ID code are sent. The bit data is fetched and stored in the service information storage area of the RAM 7.

When a coincidence detection signal of the control ID code is sent from the decoder section 3, the CPU 5 fetches the received data and mark bit data added to the control ID code and sent, After determining whether there is an error in the received data based on the contents of the mark bit data, if there is an error, the process returns to the reception standby function, and if there is no error, control based on the received data is performed. (In the case of this embodiment, reception stop or restart with the common ID code) is performed. Further, a display corresponding to the received control information, for example, a message such as "payment information reception has been stopped" or "payment information reception has been resumed" is displayed.

Next, the operation of the above paging receiver will be described with reference to the flowchart of FIG. In the reception standby state, the CPU 5 determines whether there is an incoming call, that is, whether a match detection signal has arrived from the decoder unit 3 (step S1 in FIG. 2).

When there is an incoming call (step S1, YES),
The CPU 5 determines from the signal output from the decoder unit 3 that the received ID code is stored in the ID-ROM 4.
It is determined which one of the two ID codes (the normal individual calling ID code, the service information receiving ID code, and the control ID code) matches (step S)
2).

If it is determined that the received signal is a normal individual calling ID code, a received message subsequently sent from the decoder unit 3 is taken (step S).
3) The received message is stored in the received message storage area of the RAM 7 (step S4). Further, the fact that there is a reception is notified by the speaker 8 (step S
5) Display the received message on the display unit 9 (step S6).

When a bit error is detected in the received message in the decoder unit 3 and the number of the bit error is equal to or smaller than a predetermined number (usually one), the error bit is corrected to correct bit data and cannot be corrected. If there is any error, the received message is sent to the CPU 5 with a mark bit indicating that there is a possibility of an error. Thereby, the CPU 5 can clearly display on the display unit 9 that the received message has an error.

If it is determined that the received signal is an ID code (service information receiving ID code) common to other paging receivers, the paging receiver is in a state of stopping reception due to, for example, delinquent reception charges. Is determined (step S7). When it is determined that the reception is stopped, the process returns to the reception standby state, and when it is determined that the reception is not stopped, the reception data subsequently transmitted from the decoder unit 3 is captured (step S8). ). Further, the received data at that time is stored in the service information storage area of the RAM 6 (step S9).

If it is determined that the received signal is the control ID code, the received data (function control information) subsequently transmitted from the decoder section 3 is fetched (step S10). It is determined whether there is an error in the data (step S11).

If there is an error in the received data, the received data is discarded and the process returns to the reception standby state. If there is no error, control processing based on the received data is performed (step S12). As this control processing, reception stop and reception restart control with the service information reception ID code are performed. Then, the control processing contents such as "paid information reception has been stopped" or "paid information reception has been resumed" are displayed (step S13).

On the other hand, if there is no incoming call in the determination in step S1, it is determined whether or not a key input from the key input section 6 has been made (step S14). Then, if there is any key input, the key processing of the next step S15 is executed. In this key processing, for example, processing such as reading and displaying information stored in a received message storage area or a service information storage area is performed.

As described above, in this embodiment, the received signal is compared with the three types of ID codes stored in advance, and if the received signal is a control ID code, whether the received control information has an error or not is determined. Is determined, and if there is an error, the control information is discarded. If there is no error, control based on the control information is performed.

Thus, the ID code can be added, rewritten,
Even if there is an error in the control information for managing and controlling the function of the paging receiver such as erasure, it will not be confused with a normal message.

When a new call number code is added or rewritten according to the control information, the control information includes a new call number code, a call telephone number corresponding to the call number code, and addition or rewrite. It is composed of a control code to be instructed.

In this case, for example, in the control processing of step S12 of FIG. 2, all the call number codes including the received call number code are set in the ID-ROM 4, and all the call numbers including the newly set call number code are set. The code is set in the register of the decoder 3. As a result, the call can be received with all the call number codes including the added call number code.

Then, in the notification processing of the processing content in the next step S13, for example, "A new call number has been added.
The calling phone number is XX-XXXXX-XXXXX ".

When a function signal is added to a call signal (address code word) other than a call number code, such as a POCSAG code, the call number is added, rewritten, or erased using the function bits. May be performed. For example, control ID
A function bit added to the code may specify processing contents such as addition, rewriting, and erasing, or a call number code storage area in the ID-ROM to be rewritten.

[0033]

According to the present invention, a control identification code for receiving control information for controlling the function of an information receiving apparatus is provided, and when an error is detected in the control information received together with the control identification code. Discards the received control information,
If no error is detected, information is received based on the control information.
Control functions of the communication apparatus, such as additional call number, rewritten, since to carry out the control of the cancellation or the like, it is not to be confused with the control information and the normal display information (message), the function of the information receiving apparatus Control can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Receiving part 3 Decoder part 4 ID-ROM 5 CPU

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q ^7/ 00-7/38

Claims (4)

(57) [Claims] [Claim 1] to detect a bit error in the received information data, when there is an uncorrectable bit error, the information received to display the received information to specify that the possibility of error is present
A first identification code for receiving display information and information reception;
Storage means for storing the second identification <br/> specific code for receiving control information for controlling the function of the device, identification <br/> by code identification code received is that is stored in the storage means A discriminating means for discriminating which one of the following, and when the discriminating code received by the discriminating means is the second discriminating code, and when an error is detected in the received control information, the control information And if no error is detected, receive information based on the received control information.
Message reception apparatus characterized by comprising a control means for performing function control of the device. 2. The method according to claim 1, wherein the first identification code receives pay information.
2. An identification code for performing the above operation.
The information receiving device according to the above. 3. The information receiving apparatus according to claim 1, wherein the first identification code is another information receiving device.
The identification code is also stored in the device.
The information receiving device according to claim 1. 4. The information according to claim 1, wherein the control information is information based on a first identification code.
Information that controls whether or not to receive
An information receiving apparatus according to any one of claims 1 to 3.