KR900006783B1 - Key phone system - Google Patents

Abstract

(a) a first step checking the input key error; (b) a second step checking the program end key and processing the error if the input key contains error; (c) a third step checking whether the input key is for contination and terminating the program if the inptu key is for program end; (d) a forth step checking whether the input key is not for continuation; and (e) a fifth step returning the step to the first one if the input key is not for termination and changing the subscriber key table when the input key is for termination.

Description

How to change function keys and lamps in key phone system

1 is a system diagram applied to the present invention.

2 is a flowchart of a key program of a subscriber according to the present invention.

3 is a block diagram illustrating a memory map inside the first and second memory devices 1 and 2 of FIG. 1 according to the present invention.

4 is a flowchart of key processing according to the present invention.

5 is a subroutine of the process (4a) of FIG. 4 according to the present invention.

6 is a subroutine of the process (4b) of FIG. 4 according to the present invention.

7 is a subroutine of the process (4c) of FIG. 4 according to the present invention.

8 is a subroutine of the process (4d) of FIG. 4 according to the present invention.

9 is a flowchart of LED processing according to the present invention.

10 is a subroutine of the process (5b) of FIG. 9 according to the present invention.

11 is a subroutine of the process of FIG. 9 (5d) according to the present invention.

The present invention relates to a method for controlling a function key limit lamp in a key phone system, and more particularly, to a method for allowing a user to directly change a key and a light emitting diode (LED) of a key phone as a terminal.

As the functions of the key phones are gradually diversified and the needs and preferences of the users are diversified, the system provides various functions, and the user can change the keys as desired to use the functions he / she needs.

In the conventional key phone system, various functions provided by the system are serviced as specified by using a fixed function key of the key phone, and even if the key can be changed, a terminal or an external special terminal is used to change the key function. There was an inconvenience to do. In addition, the light emitting diode (LED) of the display device corresponding to the key had to be programmed separately.

Therefore, the present invention provides a more convenient and versatile key phone while providing a method for allowing a user of a key phone to program a function key and LED directly with his or her own key phone to solve the conventional problems. The purpose is to give the system a function.

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

1 is a system diagram to be applied to the present invention. The RAM 1 stores various data used in the system, the subscriber and the key table, and the ROM storing the program code, the input key table, and the LED table for each key. 2), a central processing unit 3 for controlling each device of the system, a key phone as a terminal, a key phone subscriber access circuit 4 serving as an interface with the central processing unit 3, and the key phone subscriber access circuit ( 4) is composed of a terminal key phone (5) (6) attached to the key, LED, LCD is controlled by the central processing unit (3).

2 is a flowchart of a key program of a subscriber according to the present invention, and FIG. 3 is a memory map configuration diagram of the storage device 1 and 2 of FIG. 1 according to the present invention, and shows an input key table, an LED table for each key, and a key for each subscriber. The subscriber key table is stored in the first storage device 1 and the remaining tables are stored in the second storage device 2.

4 is a flow chart of key processing according to the present invention.

5 is a subroutine of the process (4a) of FIG. 4 according to the present invention,

6 is a subroutine of the process (4b) of FIG. 4 according to the present invention,

7 is a subroutine of the process (4c) of FIG. 4 according to the present invention,

8 is a subroutine of the process (4d) of FIG. 4 according to the present invention,

9 is a flowchart of LED processing according to the present invention,

10 is a subroutine of the process (5b) of FIG. 9 according to the present invention,

11 is a subroutine of the process of FIG. 9 (5d) according to the present invention.

Therefore, when a specific embodiment of the present invention is described in detail with reference to FIGS. 1 to 11, the central processing unit 3 analyzes the input key in step (2a), and the input key is incorrect in step (2c). In the case of (2b), the central processing unit 3 sends a code to listen to the error tone to the key phones 5 or 6 through the key phone subscriber connection circuit 4, and if the input key is normal, In step (2d), it is analyzed whether the CPU 3 is a program end key. In the case of the program ending key, the central processing unit 3 sends a code for ending the program to the key phones 5 or 6 through the key phone connection subscriber circuit 4, and if it is not the program ending key (2e) In the process, it checks whether it is a program continuation key. If it is a program continuation key, it analyzes the next input key in (2a). If the program input is not completed, continue to analyze the input key. If the input is completed, change the subscriber key table in step (2g), and analyze the input of the next key in step (2h).

Referring to FIG. 5, process (4a) will be described in detail. In the process (4a-1), the central handling device 3 stores the input key table address of the second storage device 2 in the HL register, and in the process (4a-2), the value (number of function keys) -1 is BC. In the register (4a-3), add the HL and BC registers to get the last address of the input key table.In the process (4a-4), store the key value entered in the A register. Check if the same key value exists using the CPDR instruction.

Referring to FIG. 6, process (4b) will be described in detail. In the process (4b-1), the central processing unit (3) stores the first subscriber key table (KEY-TB) address in the first storage unit (1) in the HL register and the number of function keys in the process (4b-2). In the BC register, the subscriber number is stored in the A register in step (4b-3). In step (4b-4), decrease the value of A register by 1 and check in step (4b-6) whether the value of A register is positive. If the value of the A register is positive, add the values of the HL and BC registers to obtain the subscriber key table address of the next subscriber, and perform the process (4b-4) again. If the negative value is negative, the process ends by obtaining the subscriber key table.

Referring to FIG. 7, process (4c) will be described in detail. In step (4c-1), the central handling unit 3 stores the HL register that stores the subscriber key table address obtained in step (4b) and the BC register that stores the input key designation value in the input key table obtained in step (4a). In addition, in the process (4c-2), the obtained function key value is stored in a key code which is a key value store in the first storage device 1.

Referring to FIG. 8, process (4d) will be described in detail. In step (4d-1), the central processing unit 3 stores the key service start address in the IY register, and in step (4d-2), the key register value of the C register is adjusted to a value for calculating the key processing start address. In (4d-3), the value obtained in (4d-2) is added to the IY register, which is the key service start example, to obtain a key processing address. In (4d-4), the address designated by the IY register is transferred to the HL register. It is saved and sent to the key processing address designated by the HL register in step (4d-5) to perform one of steps (4d-6)-(4d-9). In (4d-6), the dial key is processed. In (4d-7), the function key is processed. In (4d-8), the trunk line key is processed. In step 4, the process for a key that can directly call an extension is performed. In step 4d-10, a key for storing a dial number is processed. In short, the processing is briefly described as follows. When the key-phone subscriber enters the key start key of the key phone, the key program routine of the storage device starts to be executed and the key input is analyzed. At this time, the LCD of the key phone prompts the user to input the keys in the program order, and the subscriber inputs the key to be programmed. If the input key is wrong, you will hear a beep. If the key input is normal, you will receive a change function number. If the input is completed, change the function key table of the subscriber in the first storage device (1). Find and save your changes. To continue programming another key, enter the key and function number repeatedly. To end the program, enter the program end key. At this time, the key program of the second storage device 2 also ends.

LED processing is processed by FIG. 9, in step (5a), the function key table of the first subscriber is processed as in step (4b), and in step (5b), it is checked whether there is a corresponding key of the function. Are treated together. That is, in step (5b-1), the central processing window (3) stores the (number of function keys) -1 value in the BC register, and in step (5b-2), the HL register and the BC register that store the subscriber key table address are stored. In addition, the last address of the subscriber key table is obtained. In step 5b-3, the function key value is stored in the A register. In step 5b-4, the CPDR instruction is used to decrease the subscriber key table address while Check if there is.

After the process (5b) is performed, the central processing unit (3) checks whether the corresponding function key exists in the process (5c), and obtains the LED value of the corresponding key in the process (5d) and sends it to the key phone. Looking at the process (5d) in detail as shown in FIG. That is, in step 5d-1, the central processing unit 3 stores the LED table address of each key in the second storage device 2 in the HL register, and in step 5d-2, the LED table designates a position. Add the BC register storing the value and the value of the HL register specifying the LED table address to obtain the address specifying the LED value. In the process (5d-3), the LED status data stored in the E register is obtained. Is stored in a SNDQUE that stores data sent to the key phone in the first storage device 1, and the data of the SNDQUE is transmitted through the key phone subscriber access circuit 4 by the interrupt processing of the central processing unit 3; Or 6).

After processing the (5d), the process checks whether all the LEDs have been processed by the central processing unit (3), and if not, obtains the function key table of the next subscriber in (5f) and repeats the above process. . That is, the processing for the changed key is transmitted to the central processing unit 3 when the key is input from the key phones 5 and 6 as shown in FIG. 3, and the key processing program of the storage device 2 starts to be executed. Analyze the function key, obtain the function key table of the player, get the function number of the key, and perform the service routine of the key.When the key is changed, the LED automatically becomes the function LED of the corresponding key. As shown in Fig. 9, it checks whether the function number exists in the function key table from the first subscriber based on the function number currently processed, and if there is a corresponding function key, the LED value is obtained from the LED table for each key, and then sent to the subscriber key phone. If the key does not exist in the function key table, the next subscriber is checked. If all the subscribers are checked, the LED processing is finished.

As described above, the user can program directly with his or her own key phone without an external device such as a terminal or a special terminal, so that the user can meet the needs of the user, and more efficiently use various functions of the key phone system and also change the key. If the LED is changed as well, there is no need to program the position of the LED separately, and there is an advantage that the user can easily program because the status of the program can be viewed through the LCD of the keypad.

Claims (2)

A method for controlling a program key of a key phone system, comprising: first steps (2a, 2c) for analyzing an input key and checking for input key errors, and error processing for an input key error in the first steps (2a, 2c); If not, the second step (2b, 2d) to check whether the key to end the program, and the second key (2b, 2d) to end the program in the second step (2b, 2d) to end the program and check whether the program continues key if not the program key A third step (2e), a fourth step (2f) of checking if the program completion key is found in the third step (2e), and a non-program completion key in the fourth step (2f). And a fifth step (2g) of returning to the first step at the beginning and changing the program completion key temporary subscriber key table. In the method of controlling a lamp light emitting diode of a key phone system, a first step (5a) of obtaining a function key table of a first subscriber and a second step (5b) of checking whether a corresponding key of a function exists from the first step (5a). And a third step (5c, 5d) after the third step (5c, 5d) and the third step (5c, 5d) and obtains the ramp processing value of the key when the corresponding key exists in the second step (5b) If the corresponding key does not exist, check whether the LEDs of all subscribers have been processed, and if not all of them, obtain the function key table of the next subscriber. 5f).

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