KR100193852B1 - How to change the contents of YPIROM in wireless hand signal generator - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

How to change the contents of EEPROM in wireless handset.

I. The technical problem that the invention is trying to solve

The present invention provides a method of changing the contents of an EEPROM by displaying the contents of the EEPROM by using a key of a wireless call receiver and inputting and storing data to be changed.

All. Summary of Solution of the Invention

A method of changing the contents of the EEPROM in a wireless call receiver having an EEPROM storing cap code data and channel frequency data, which are unique address data, and a key input unit and a display unit, includes key data for changing the contents of the EEPROM. To display the display data for guiding the user to select the contents to be changed from the contents of the EEPROM, and to input the key data for selecting contents to be changed from the display data after the first process. A second process of reading the conventional data of the selected contents and displaying the changed data on the display unit; and a third process of displaying the changed data on the display unit by inputting key data for changing the contents of the conventional data into desired change data after the second process. And receiving the storage key data after the third process and transferring the changed data to a storage area of the EEPROM. Characterized in that the fourth process of storing.

la. Important uses of the invention

Used to change the contents of the EEPROM of the wireless page receiver.

Description

How to change the contents of YPIROM in wireless hand signal generator.

The present invention relates to a method of changing the contents of an EEPROM in a radio call receiver, and in particular, displays the contents of the EEPROM by operating a function key of the radio call receiver, and changes the contents of the EEPROM by operating the function keys. It is about how to.

In the paging system, the necessary information is contained in the POCSAG code and modulated to the corresponding frequency and sent to the paging handset. The radio call receiver receives the corresponding frequency signal if it matches the channel frequency, decodes the bread code at the received frequency, and if the address data of the bread code matches the address data of the radio call receiver, the bread code. Read information data from.

Figure 1 shows the form of the POCSAG code used in the radio call receiver, which is currently in the form of a dedicated pager signal commonly used worldwide, and is specified in detail in CCIR Recommendation 584. One POCSAG code consists of preamble data consisting of 576 bits and a plurality of batch data contiguous. The preamble data is a code in which '1' and '0' are repeated for 576 bits. The one POCSAG code usually consists of 30 batches up to 60 batches. One batch consists of one wordsync data of 32 bits and eight frame data of 64 bits. The word sync data is 32 bit data. Each frame data is composed of 32 bits of address codeword and 32 bits of message codeword. Therefore, one batch is composed of 17 words of 544 bit data (17 words * 32 bits = 544 bits) in which 32 bits of data are one word. The preamble data is for detecting a received signal and synchronizing clock bits with the signal. The word sync data is used to match word synchronization of a codeword, such as an address, a message, and an idle, which is then transmitted.

2 is a block diagram of a wireless call receiver. In the configuration of the radio call receiver 10, the key input unit 18 is composed of keys for generating various control signals of the radio call receiver. The keys may include, for example, a power key for turning on / off a radio call receiver, a mode key for implementing various operations and functions, and a lead key for displaying a received message. In particular, the key input unit 18 generates key data for mode change by simultaneously pressing the mode key and the lead key. After the mode change is set, the lead key and the mode key perform a function of selecting contents to be changed and inputting and storing change data. The RF unit 11 is assigned a channel by the frequency synthesizer 14, amplifies the weak RF signal of the designated channel received through the antenna, and converts the amplified signal into the original signal band and demodulates the demodulated signal. Waveform is output by digital data. The decoder 12 decodes and outputs the digitally coded data output from the RF receiver 11. That is, the received coded data (usually BCH coded data) is decoded into original data, and the preamble data, the word sink and its own frame data are detected and output from the form of the bread code. The memory 15 is a memory that stores information of the radio call receiver, and may use an EEPROM. The information stored in the memory 15 stores a cap code, which is address data for selecting and receiving data, and a channel frequency for receiving a radio call service. In addition, the memory 15 stores data for performing an option function. The optional function includes a clock function and an alarm function. In particular, the memory 15 stores display data which is a guide message according to a mode change. The controller 13 analyzes the information in the memory 15 to control the call service function of the radio call receiver. First, upon receiving a power key on signal from the key input unit 18, the controller 13 performs a channel scan function for initial driving. That is, the controller 13 sequentially selects reference channel frequencies accessed from the memory 15, specifies a channel by outputting the selected reference channel frequency at a predetermined period, and checks whether data is received from the designated channel. In this case, when the data is received, the received frame data is analyzed, and when the address data of the cap code and the address data of the received bread code are identical, the message data is stored in the memory 15. In addition, the controller 13 receives key data from the key input unit 18 and performs a corresponding function. In particular, the control unit 13 receives the mode change key data from the key input unit 18, reads and displays the display data from the memory 15. A frequency synthesizer 14 designates a channel of the RF receiver 11 according to the channel data output from the controller 13. The channel data may be reference channel frequencies for designating a reference channel frequency in a regional area and service channel frequencies for a radio calling service of a wide area network subscriber in the case of a wide area wireless call receiver. The display unit 16 displays various situations and received messages generated during the radio call service under the control of the controller 13. The display unit 16 may be implemented as an LCD. In particular, the display unit 16 displays the display data for mode change under the control of the controller 13. The alarm unit 17 generates an alarm signal when a message is received under the control of the controller 13. The alarm unit 17 includes means for generating an alarm sound, a vibrator for generating a vibration signal, and the like.

As described above, the radio call receiver stores the unique address data and the channel frequency in the memory area, that is, the EEPROM area. Therefore, when the wireless call receiver is shipped from the factory, unique address data and channel frequency must be stored in the EEPROM area. In addition, there is a case where an A / S center needs to change unique address data and channel frequency of the EEPROM area.

3A is a configuration diagram of an apparatus for changing the contents of an EEPROM of a conventional radio call receiver, and changes the contents of the EEPROM using radio. In the configuration of the figure, the radio call receiver 10 includes a memory 15 having an EEPROM, and reference is made to the description of FIG. Encoder 21 converts the cap code data and the channel frequency data, which are unique address data, into a bread code. The signal generator 22 is connected to the encoder 21, modulates the bursting code data by the encoder, and modulates it by the frequency shift keying (FSK) method and transmits the same through the antenna 23. The radio call receiver 10 then receives it and stores it in the EEPROM of the memory 15.

3B is a block diagram of an apparatus for changing the contents of the EEPROM of the conventional radio call receiver, and changes the contents of the EEPROM using a wire. If FIG. 3A is wireless, it connects the encoder 21 and the radio call receiver 10 with a cable 24, and transmits the coarse code data directly from the encoder 21 via the cable 24 and stores it in the EEPROM of the memory 15.

As described above, the method of changing the contents stored in the EEPROM of the conventional wireless call receiver requires additional equipment such as an encoder using a wire or wireless. Therefore, in the sales offices where the products of the radio call receiver are sold, the additional equipment is required for A / S, resulting in a large cost loss. In addition, as shown in FIG. 3A, when there is a channel frequency in service operation when wireless, the channel frequency and the frequency transmitted to change the EEPROM interfere with each other, thereby failing to successfully change the data of the EEPROM. It was.

Accordingly, an object of the present invention is to provide a method of changing the contents of an EEPROM by displaying the contents of the EEPROM using a key of a radio call receiver and inputting and storing data to be changed.

1 is a diagram illustrating a POCSAG code used in a wireless call receiver.

2 is a block diagram of a wireless call receiver.

3A is a block diagram of a device for changing the contents of an EEPROM of a conventional radio call receiver.

3B is a block diagram of an apparatus for changing the EEPROM contents of a conventional radio call receiver.

4 is a flowchart illustrating a process of changing EEPROM contents of a wireless call receiver according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

4 is a flowchart illustrating a process of changing EEPROM contents of a wireless call receiver according to an embodiment of the present invention.

Hereinafter, the drawings will be described in detail based on the configuration of FIG. 2.

In order to change the contents of the EEPROM in the radio call receiver 10, the user will operate a mode change key for changing the contents of the EEPROM. In step 100, the controller 13 inputs the EEPROM change key data. In operation 110, the controller 13 reads display data from the memory 15 and displays the display data on the display unit 16. In this case, the display data is data for guiding selection of a menu so that desired contents can be changed among contents of the EEPROM. Here, only the contents of the cap code and the channel frequency are changed among the contents of the EEPROM. Therefore, an example of the display data displayed on the display unit 16 includes SET CAP-CODE, SET CH-FRE, and the like. The display data may be set differently to desired contents according to the person who sets up the display data. Viewing the display data displayed on the display unit 16, the user will manipulate the key in the key input unit 18 to select the contents to be changed. Then, in step 120, the control unit 13 inputs key data from the key input unit 18 to determine whether the key data is cap code change selection key data for which the content of the cap code is to be changed. If the determination result is cap code change selection key data, in step 130, the control unit 13 reads out conventional cap code data stored in the memory 15, that is, the EEPROM, and displays the cap code data on the display unit 16. The user will then manipulate the key in the key input section 18 to view the conventional capcode data and change it to the desired capcode data. In step 140, the control unit 13 receives the key data from the key input unit 18, changes the conventional cap code data, and displays the changed cap code data on the display unit 16. If the change capcode data is the desired capcode data, the user will operate the storage key in the display unit 16 to store it in the EEPROM instead of the conventional capcode data. In step 150, the controller 13 inputs key data from the key input unit 18 to determine whether the input data is storage key data. If the determination result is the storage key data, in step 160, the control unit 13 stores the changed capcode data in the capcode data area of the EEPROM, and returns to step 110 to display the display data for guiding the next selection. Displayed on the display unit 16. When the determination result of step 120 is not the case where the cap code change is desired, in step 170, the controller 13 determines whether the key data is the channel frequency change selection key data for which the channel frequency data is to be changed. If the key data inputted as the determination result is the channel frequency data change selection key data, in step 180, the controller 13 reads the conventional channel frequency data from the EEPROM and displays the same on the display unit 16. The user will then manipulate the key in the key input section 18 to see the conventional channel frequency data and change it to the desired channel frequency data. In step 190, the controller 13 receives key data from the key input unit 18, changes the conventional channel frequency data, displays changed channel frequency data on the display unit 16, and returns to step 150. If the key data is not the channel frequency change selection key data as a result of the determination in step 170, the procedure ends.

As described above, the contents of the EEPROM can be changed simply and accurately by using the keys of the radio call receiver. In addition, by changing the contents of the EEPROM by the wireless call receiver itself without the conventional additional equipment can bring a lot of cost savings for the additional equipment.

Claims (3)

IPIROM storing capcode data, channel frequency data, etc., which are unique address data, and key data for changing the contents of the YPIROM by external operation, and key data for selecting contents to be changed among the contents of the YPIROM. And a key input unit having multi-function keys for outputting the key data for changing the conventional data of the selected contents into the desired change data and the storage key data for storing the change data in EPI, and the wireless call receiver having a display unit. In the method of changing the contents of Y pyrom, A first step of displaying, on the display unit, display data for inputting key data for changing the contents of the Y-pyrom to guide selection of contents to be changed among the contents of the Y-pyrom; A second process of inputting key data for selecting contents to be changed from the display data after the first process to read out the conventional data of the contents selected from the YPIROM and display them on the display unit; A third step of displaying the change data on the display unit by inputting key data for changing the contents of the conventional data into desired change data after the second step; And a fourth process of receiving the storage key data after the third process and storing the changed data in the storage region of the Y. pyrom. The method of claim 1, wherein the second process, A first step of inputting key data for changing cap code data among the display data to read out conventional cap code data from the YPIROM and to display the cap code data on the display unit; And a second step of inputting key data for changing the channel frequency data instead of changing the cap code data among the display data and reading out the conventional channel frequency data from the EPI and displaying it on the display unit. . The method of claim 1, And a fifth step of displaying display data for guiding selection of the next change so that the next content can be changed after the fourth step so that the second step can be performed again from the second step.