KR960012950B1 - Respective paging method in pager receiver - Google Patents

Abstract

detecting its own cap code reception by analyzing the free amble signal and the word sync. from a received call signal; checking the reception of an individual call message by inspecting the message when the cap code is received; calling an individual or a group by analyzing the individual call message when it is received; and storing and displaying the call message after finishing the individual or group calling to provide a respective calling service.

Description

How to call the pager receiver individually

1 is a block diagram of a pager receiver according to the present invention.

2 is a flow chart in accordance with the present invention.

FIG. 3 is a memory map diagram of EPIROM (5) in FIG.

* Explanation of symbols for main parts of the drawings

1: antenna, 2: RF receiver,

3: waveform shaping part, 4: microcomputer,

5: ypyrom, 6: alarm driving unit,

7: speaker, 8: LCD,

9: key input unit, 10: state driver

The present invention relates to an individual calling method in which a pager receiver receiving numbers and alpha-numeric characters is called to receive a message individually or jointly using one address cap code.

In general, the pager receiver uses a POCAG CODE, and the paging system assigns a cap code corresponding to each pager receiver address to call the pager receiver in the paging system. And 3 bits of frame data.

Also, in case of individual call of pager receiver, write the corresponding CAP-CODE in EEPROM with ROM-WRITER and CAP-CODE when MESSAGE is received. ), A message MESSAGE corresponding to the ADDRESS CAP-CODE is displayed on the display panel (hereinafter, LCD). In the case of GROUP CALL, all receivers are called at once by writing the same CAP-CODE to multiple receivers.

The CAP-CODE is an I. D code between the paging system for calling the pager receiver and the pager receiver and the pager receiver sets the pager calling number for calling over the telephone. Have.

That is, like a general telephone, a pager call number is assigned to each pager receiver, and a cap code (CAP-CODE) is assigned as 1: 1 accordingly.

Therefore, in order to call the pager receiver, the general subscriber inputs a pager call number on the telephone, and when this data is input to the paging system, the system converts the input pager call number into a corresponding CAP-CODE and sets the method. En-coding is then modulated and propagated to the air.

At this time, the pager receiver receives the propagated signal and compares the cap code embedded in the pager receiver with the data in the received signal to detect the child's cap code. A message (MESS-AGE) will be displayed or an alarm will sound.

The conventional paging system driven as described above is able to call one pager receiver with one capcode, and when making a group call, all group call receivers are called at the same time. There was a problem that could not be.

Accordingly, it is an object of the present invention to provide an individual calling method for calling multiple pager receivers individually or jointly with one address capcode in a paging system.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a pager receiver for carrying out the present invention. After demodulating and amplifying demodulated signals of an RF receiver 2 and an RF receiver 2 demodulating an RF modulated signal through an antenna 1, FIG. Waveform shaping section 3 for shaping the waveform with the secondary signal, YPIROM 5 storing its own data for discriminating the data of the corresponding pager receiver, and power-saving at predetermined intervals by controlling the pager receiver. Outputs the control signal BSS for the same time, inputs the reception data of the waveform shaping unit 3, compares the data with the data of the Y pyrom 5, determines whether there is qualified data, and displays the stored message by the read key. A microcomputer 4 for controlling the state of the receiver, an alarm driver 6 for generating an alarm signal under the control of the microcomputer 4, and a speaker for generating an alarm tone by the alarm driver 6. 7 and the microcomputer 4 LCD (8) for displaying messages and status data under control, and a key input section (9) for generating a silent signal for preventing the display of stored messages and the generation of an alarm sound by being composed of a lead key and a silent key. And a state driver 10 for displaying the state of the pager receiver under the control of the microcomputer 4.

2 is a flow chart according to the present invention, in a pager receiver's individual calling method in which a unique magnetic address and a separate call number are stored in a memory. A first step of searching for the reception of a message; a second step of checking whether a separate call message is received by searching for a message when the cap code of the first step is received; and receiving the individual call message in the second step A third process of analyzing individual call messages and making individual calls or group calls, and a fourth process of storing and displaying a call message after terminating individual calls or group calls in the third process.

FIG. 3 is a memory map of YPIROM 5 of FIG. 1, where 3A) is an area for storing a unique capcode of a pager receiver, 3B) is an area for individual calls, and 3C) is an area for group calls.

The unique capcode of the pager receiver according to the present invention is composed of two capcodes as shown in FIG. 3A. The capcodes of A1 and A2 have 18-bit address data, and the FA1 and FA2 capcodes have 3-bit frame data. Has

Also, in the area B1 as shown in FIG. 3 (3B) for the individual call, the B2 is the alphanumeric character (ALPHA-NUMEKIC) which stores the individual number for the individual call (the user can set the number of users according to the setting). The receiver stores special numbers as letters or numbers for individual calls.

One capcode is an area for storing all pager receivers in the form of numbers. The G2 region is one capcode for all pager receivers.

One embodiment of the present invention based on the above-described configuration will be described in detail with reference to FIGS.

The RF receiver 2 receiving the RF signal modulated by the FSK through the antenna 1 and amplifies and demodulates the received data in the modulated state.

In this case, it is assumed that the received data, that is, the received message is a message in the form of a POCSAG CODE.

The POCSAG CODE is composed of one frame (BATCH) and eight frames (FRAME), each frame having an address codeword (ADDRESS CODE WORD) indicating a unique address of the pager and a message of the calling party (NUMERIC or ALPHA NUMERIC). ) Consists of a message codeword (MESSAGE CODE CORD).

The waveform shaping section 3, which receives the demodulated signal of the RF receiver 2, filters and amplifies the demodulated data, and shapes it to a secondary level to apply it to the microcomputer 4.

The microcomputer 4 stores the address stored in the EEPROM 5 at the initial power-on in the internal memory RAM of the microcomputer 4 and receives the POCSAG CODE received through the waveform shaping unit 3. ), The corresponding address in step 1) is compared to determine whether data is eligible.

In the EPI rom 5, as shown in FIG. 3A, four addresses including 18 bits (BIT) and 3 bits (BIT) of frame data indicating a unique address of a normal pager receiver are stored. have.

The microcomputer 4 selects 3 bits of magnetic frame data from among 8 frames per batch by using the frame data, and 18 bits of address data bits of the received data of the magnetic frame. The presence or absence of qualified data is determined by comparing with the unique 18-bit address data stored in the A1 and A2 areas as shown in FIG. 3A of FIG.

In the pager receiver which performs such an operation, the present invention is intended to receive several messages individually or in a group call with one CAP-CODE.

Therefore, in order to perform such an operation, a separate area must be provided in the ypyrom 5 so as to receive individual calls 3 and 3B.

In the area B1 of FIG. 3B, the first and fourth addresses unique to each other are stored to determine a magnetic cap code in the received message, and the individual number is stored in the B2 area. You should determine if there is an individual call.

The designation of an individual number for an individual call is carried out with 12 digits in a numbered pager receiver. In the region B2 of Figure 3B (3B).

If 1 digit is set to 3 or 6 by the ROM writing, to call them, first key 3 or 6 in front of the message and send 11 digits of the required message. And set it to 9 in the B2 area of FIG. 3B in Y pyrom 5 so that two users can share the message.

If 99 users want to receive a message individually or jointly, two digits can be set in the B2 area of FIG.

Therefore, the number of digits can be increased depending on how many digits are set in the B2 region of the Y pyrom 5, but the reception digits of the message are decreased proportionally. Next, in the ALPHA-NUMERIC TYPE pager receiver, since the message is received in letters and numbers, more users can be called according to the combination of letters and numbers, and an urgent message is received with fewer characters (CHARACTOR). Can be used to increase the utility to the user.

Therefore, if the received data is found to be a magnetic cap code, the microcomputer 4 receives the message data, stores it in the YPIROM 5 and displays it on the LCD 8, while driving the alarm driver 6 to drive the speaker 7 To generate an alarm sound.

Referring to the flowchart of FIG. 3, the operation of calling several pager receivers individually or in a group call as described above, when the waveform-formed message is received from the waveform shaping unit 3, is performed in step 2a. Search data and word sync and cap code to check whether the cap code is received in step (2b).

When the cap code is received in step (2b), the message is searched in step (2c) and step (2d) is performed.

In step (2d), if the message for individual call is received or searched for, the step (2e) is performed. In step (2e), the number of digits of the private number is retrieved.

In this case the call is from, it is possible to call back to 10 n digits ⁿ -1 people to the number of digits of each number, for example if the first digit is the digit 2 and the possible call to 999 people.

After searching for the number of digits in step (2e), in step (2f), the individual message is searched. For example, if the individual message is 3, it is received and called at the third pager receiver, and if it is 66, it is received and called at the 66th pager receiver. If it is 99, it is received as a group call and calls the all-page receiver. In step (2g), it is checked whether the pager receiver is individually called, and if not, the call is performed as a group call in step (2h), and the pager receiver is jointly called and step (2i) is performed. However, if the pager receiver is individually called in step (2g), step (2i) is performed. In step (2i), after the individual call or the group call is finished, another message is stored in the call state and step (2j) is performed. In step (2j), the state driver 10 is driven to display individual or group messages without displaying individual call numbers.

As described above, a pager receiver receiving an individual call number and a common call number for an individual call as an alphanumeric character stored in a memory may receive a plurality of messages individually or jointly by one cap code and call the pager. There is an advantage to improve the functionality of the receiver.

Claims (1)

An individual call method of a pager receiver having a unique magnetic address and an individual call number stored in a memory, the method comprising: a first process of analyzing a preamble signal and a word sync for a received call signal and searching for receiving its cap code; A second step of checking whether the individual call message is received by searching for the message when the cap code is received in the first step; and analyzing the individual call message by receiving the individual call message in the second step. And a fourth process of storing and displaying a call message after terminating the individual call or group call in the third process.