KR910003494B1 - Message display method on absence in key phone - Google Patents

Abstract

The messages meaning the reasons of absence are recorded on a ROM of keyphone system. A receiver selects and records a message suitable to the reason of absence on a different memory area so that, when the receiver is called, the message can be displayed on a LCD of keyphone of a transmitter. The method includes steps: (A) displaying the state of message key and checking the wanted message; (B) checking the next wanted message; (C) displaying the next wanted message on the LCD and checking the direct message input; (D) inputting a stand- by key, and displaying a cursor and wanted numeric on the LCD; (E) forming message using the numeric and alphabet; (F) moving the cursor one step to the vright when the other message is written; and (G) checking the quitting key input.

Description

How to display out of office message in keyphone system

1 is a block diagram of a key phone system according to the present invention.

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

3 is a flowchart of a call program according to the present invention.

4 is a key matrix used when leaving a message and a phone outline of a key phone system according to the present invention.

* Explanation of symbols for main parts of the drawings

10,90: 1st, 2nd central processing unit 11, 12: 1st, 2nd interface

13: hook switch 14: LED matrix

15: Key Matrix 16: LCD Display

17: speakerphone 18: hand cent

19: Tonringer 50: Trunk

60: switching network 70: main subscriber line card

80: interface circuit 100: ROM

110: ram

The present invention relates to a method for displaying missed messages in a key phone system. In particular, a message that can be displayed on an LCD (Liquid Crystal Display) of a key phone in advance of a simple message display method can be read from a ROM in a key phone system (ROM: Read Only Mernory). In the memory area and select the message corresponding to the reason when the user is absent and leave the message directly in the other memory area so that other users, that is, when the other subscriber calls the missed phone, A method for displaying missed messages in a key phone system for displaying on an LCD display.

In general, a method of processing a message in a key phone system is used when a subscriber is called from another subscriber B while talking to another subscriber. When the other subscriber A recognizes that there is a call by driving the lamp in the busy state, the other subscriber A presses a message key on the telephone. At this time, the other subscriber A, who was busy, leaves a message in memory that the subscriber has called a few times and the message lamp blinks. When another subscriber (A) who is called during the call ends the call and presses a message on the corresponding key phone phone again, the other subscriber (B) who is called is connected to make a call. In other words, the conventional message method simply transmits call information and a message to other subscribers when the other party is in a call so as to notify only the caller who has called when the called party is in the call. Thus, the calling other subscriber B is only to know that he is busy.

On the other hand, the other subscriber A who is called is absent when not answering the phone even when not on the phone, and there is no way for the subscriber to know why he is absent.

Accordingly, an object of the present invention is to display the reason why the subscriber is absent on the LCD display of the phone so that even if another subscriber B makes a call, he / she can know at a glance on the other party's phone, that is, the other subscriber B's phone. Therefore, it is possible to contact if there is an urgent task, and thus, it provides a way for the user to conveniently and widely use the message from the existing simple and incomplete message method.

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

1 is a block diagram of a key phone system to be applied to the present invention, which is a loan 100 containing a program and fixed service data for performing a key phone, and is used and processed for each service class and system mode, program and data processing area. RAM 110, which temporarily stores the stored data, a first central processing unit 90 for controlling call switching and providing various services, and a key phone to which a button and an LED display (LCD) are added. And a trunk 50 connected to a main subscriber and a trunk line for transmitting signals and data through four or six wires to compensate for ring detection, pulse transmission, overvoltage protection, and switching signal loss, and the first central processing apparatus 90 ), Trunk 50, the switching network 60, the main subscriber line card 70 and the interface circuit 80 to smoothly input and output control data corresponds to the main device (1) of the key phone system And a second central processing unit 10 for processing commands according to key input, controlling a call circuit unit, displaying ring transmission and various functions, and processing transmission / reception data, and a main subscriber line card of the main device 1 ( A first interface circuit 11 for selecting power and data from the 70, a second interface 12 for transmitting voice to the main subscriber line card 70 of the main apparatus 1, and the second center; A key matrix 15 connected to the processing apparatus 10 for inputting a dial and a key command, a light emitting diode matrix 14 for displaying a key input state of the key matrix 15, and the second interface The handset 18 connected to the circuit 12 to make a call, the speakerphone 17 to make a call in a hook-on state, the tone ringer 19 to generate an incoming signal, and the dial number for an internal call Party number, CO line number of CO line connection, call , LCD display 16 to display a message, such as hold, schedule, call rejection are available for the sub-devices (2).

2 is a flowchart of a message program according to the present invention, which receives a message key, displays a status on an LCD, and confirms whether the message is a desired message, and the first step (2a-2c) of (1a). In step 2c), when the message is not the desired message, the second step (2f) checks whether it is the next desired message, and when the next desired message is received in the first step (2f), the message is input and the status is displayed on the LCD. Check whether the message is directly inputted when the message is not in the third step (2g-2i), and if the message is not in the direct message input mode in the third step (2g-2i), check whether the message is canceled. In the fourth step (2j-2l) that receives the key input and displays the cursor in the LCD and displays the desired number, and in the fourth step (2j-2l), the number of (2m) is the correct alphabet and number. If not, lose the wrong person In the fifth step (2n-2p, 2q) of checking whether or not to cancel the message, and the other desired message of (2q) in the fifth step (2n-2p, 2q) if you need to write a space, move the cursor to right When the message is not in a space, the sixth step (2r-2t) of checking whether or not the desired message formation is completed, and when the message writing is completed in (2t) of the sixth step (2r-2t) and the first step ( If the desired message is not canceled at (2c) of 2a-2c), a seventh step (2d, 2m, 2o) is performed to leave a message and display the status on the LCD according to the message end key input.

3 is a flowchart of a call program according to the present invention, in which A subscriber picks up a handset, calls B subscriber, and checks that the call is in progress, and calls in first procedure 3A-3C. If not in the process of the second (3D-3B) to check the end of the message (DND) or the presence of the message, and the call in the first and second processes (3C-3E) and not in the "DND" and there is no message A third process (3F-3G) is performed, in which a message of subscriber B is sent to subscriber A and a message is displayed on the LCD of subscriber A's phone when there is a message.

4 is an exemplary diagram of a phone matrix of a key phone system according to the present invention and a key matrix table used when leaving a message. 4A is a front part of a key telephone telephone, and 4B to 4C are key matrix table examples.

Therefore, in detail with reference to Figures 1-4 for a specific embodiment of the present invention, the key phone is connected to the key phone main unit 1, the sub-device (2), which is a plurality of key phone telephones, as shown in the first diagram and various control data to each other The control data can be transmitted between the sub-devices 2 for the program while controlling to make a call with the CO line by interworking with each other.

The key phone main device 1 and the sub device 2 are connected in pairs by four lines, so that two lines transmit a voice signal and two lines enable data communication. In the data communication, both devices transmit and receive only simple control data.

Looking at the general functions of the main unit (1) and the sub-unit (2), the main unit (1) is the first central processing unit (90) through the trunk circuit 50, the incoming signal from the trunk line (CO) through the interface circuit 80 Is detected. According to the detection result of the first central processing apparatus 90, the main subscriber line card 70 transmits the control data according to the trunk line reception to the sub-device 2 that there is a trunk line reception.

This not only notifies the incoming line, but also transmits data to control various lamps. The control data is via a data line. The data line also receives various key data from the secondary device 2 and transmits data for carrying out a number of additional functions such as a trunk line call, a call with the secondary device 2, and the like.

The subsidiary device 2 receives various control data from the main device 1 through the data line and controls the state of the subsidiary device 2 by turning on / off the lamp and turning on / off various beeps. In addition, by pressing the pressed key, the input key data is transmitted to the main device 1 to control to receive various services from the main device 1.

Therefore, a preferred embodiment of the present invention in accordance with the alphabet, number, and FUNCTION key input using various key matrices of the program of FIG. 3, the call progress program, and the key-phone telephone of FIG. Explain.

When the message mode is specified for the key matrix 15 of the subsidiary device 2, this data is transferred to the second central processing unit 10, the first interface 11, the main subscriber line card 70, and the interface circuit 80. Inputted to the first central processing apparatus 90 to check whether the first central processing apparatus 90 is the message mode key code CODE for the input message mode MODE. The first message stored in the transmission buffer TX-BUFFER is passed through the interface circuit 80, the main subscriber line card 70 and the first interface 11 by the transmission program data. 10), the second central processing unit 10 shows the input message mode key input state on the LCD display 16 by the processing in step (2b).

If the second central processing unit 10 checks whether the message displayed on the LCD display 16 in the next (2C) process is the desired message to the subscriber, the message is requested by the user through the key matrix 15 as shown in 2d. When the speaker key, which is the message cancellation key of FIG. 4, is pressed by the second central processing apparatus 10 and canceled, it is passed through the interface circuit 80 through the main subscriber line card 70 through the first interface 11 and then through the first circuit 11. Input to central processing unit 90. At this time, in the process (2e), the first central processing apparatus 90 executes the existing program, and when the process is not performed (2u), the 'DND' key, which is the message end key, is input through the key matrix 15, and the second central processing is performed. Input to the device 10. At this time, the second central processing apparatus 10 is inputted to the first central processing apparatus 80 through the first subscriber line 11, through the main subscriber line card 70, and through the interface circuit 80. At this time, the desired message ends in the RAM 100 in the process (2v).

If it is not the desired message in step (2c), the first central processing unit (90) checks whether the next message is desired in step (2f), and if desired in step (2f), the key matrix 15 of the sub-device (2) is desired. Check the message key input through the second central processing unit 10 and if the message key for the next message it is the first key through the first interface 11, the main subscriber line card 70, the interface circuit 80 1 is input to the central processing unit 90. In the process (2h), the next message is read from the ROM 100 and displayed on the LCD display 10 which is transmitted to the subsidiary device 2 in the reverse order.

That is, the second message stored in the transmission buffer of the ROM 100 of the main apparatus 1 is displayed on the LCD display 16 under the control of the second central processing apparatus 10 of the secondary apparatus 2 by the transfer program.

If the message is kept pressed until the desired message is displayed as described above, the message in the transmission buffer of the ROM 100 of the main apparatus 1 is sequentially displayed as described above. Control to continue to appear on the LCD display 16 through the control of the first and second central processing window (10,90). However, when the desired message is not stored in the ROM 100 of the main device 1 or the user wants to input a message directly, as shown in FIG. 4, various key matrices 15 of the key phone of the sub device 2 are shown. Check in the first central processing unit 10 using the first interface 11, the main subscriber line card 70, the interface circuit 80 through the input to the first central processing unit (90) to process the You can make a message by

The first central processing unit 90 checks whether the message is to be directly input in the next step (2i), and if not, the message is processed as shown in step (2j), and if desired in step (2j), as shown in step (21). If the second central processing apparatus 10 checks whether the hold key in the message input mode MODE is pressed through the key matrix 15 and transmits the message to the first central processing apparatus 90 of the main apparatus 1 as described above. The first central processing apparatus 90 is transmitted to the second central processing apparatus 10 of the subsidiary apparatus 2 and grows by controlling the LCD display 16 under the control of the second central processing apparatus 10 (CURSOR). Appears on the LCD display 16.

In this case, when the display data is transmitted to the second central processing unit 10 of the subsidiary device 2 as display data in order to display various key data identifier codes in step (2m), alphabets and numbers appear on the LCD display 16. . However, in step 2n, the second central processing apparatus 10 checks a message desired by the user, that is, a wrong person.

At this time, if the user presses a typo, press the '*' key in the key matrix (15) so that the wrong person can be corrected in step (2o), and the cursor (CURSOR) moves to the left to erase the previously entered error (2p). The program waits to determine if there is a cancellation and to enter another key if not. At this time, if the key cancels the message (2k), the existing program is executed.

On the other hand, if the correct alphabet or number desired by the user in step (2n) is input, in step (2q), a message is generated by the first central processing unit (90) of the main unit (1) and the second central processing unit (10) of the sub-unit (2) Control to display on the LCD display 16.

At this time, if the user wants to fill in one space of the message input (2r), press the '#' key in the key matrix 15 as in the process (2s), the control is larger by the control of the second central processing unit 10 (CURS0R) is right Moves one space to (2p) and waits for the next key if the message is not canceled.

If it is not desired in step 2r, the first central processing unit 90 checks whether or not the message is heard in step 2t. If you are still writing a message, go to step (2m) and wait for the next key (same as 10 seconds). Alternatively, in step (2u), press the "DND" key, which is the message ending key, through the key matrix (15) of the auxiliary device (2). The first central processing unit 90 of the main unit 1 checks from the data inputted and transmitted by the second central processing unit 10. Then, in the process of 2v, the first central processing apparatus 90 of the main apparatus 1 transmits the message made by the second central processing apparatus 10 of the subsidiary apparatus 2 to the user's secondary apparatus as a predetermined message. Appears on the LCD display 16 of 2).

In this case, when another subscriber (subscriber B) picks up the receiver as in the process of FIG. 3A of FIG. 3, which is the execution of the CALL program, at this time, the main unit is connected through the handset 18 and the second interface 12 of the sub-device 2; It receives the hook-off data from the first central processing unit 90 of the main unit 1 through the interface line 80 through the subscriber line card 70 and detects the hook-off data, and again, the interface circuit 80 and the main subscriber line card ( 70) the hook-off data is transmitted to the second central processing apparatus 10 through the first interface 11 so that the second central processing apparatus 10 controls the corresponding LEDs and key matrixes 14 and 15, In step 3B, the first central processing apparatus 90 of the main apparatus 1 checks again whether the subscriber 'B' is called. At this time, if the "B" subscriber called in the process (3C) is in the free state, the existing program is executed, but if the "B" subscriber is busy, the "A" subscriber is busy through the tone ringer 19 of the secondary device 2 ( You will hear a busy tone and run an existing program.

On the other hand, if it is not in a call, 'B' subscriber (3D) checks whether 'DND' is being used. If it is not "DND", it executes the existing program and if it is during DND, whether 'A' subscriber has left a message ( Check in step 3E).

If there is no message, the existing process is performed. If there is a message, the message is transmitted from the first central processing unit 90 of the main unit 1 through the center buffer. This message is displayed on the subscriber's LCD display of the 'A' subscriber (3F) so that subscriber A sees the message and detects why subscriber B is absent and the message ends.

On the other hand, Figure 4 is a key matrix that allows an extension subscriber to make a message using a telephone and can be used only in the message input mode (MODE), which is irrelevant to the existing main machine communication (MMC).

As described above, if an extension subscriber of a key phone system wants to leave a space and leave a message, the user can leave a message without additional equipment manufactured separately.If the subscriber is away for a long time, the subscriber can be contacted, saves time, and adds a function of the key phone system. It can be used conveniently and easily by displaying the reason why the user of the key phone is not displayed on the LCD display of the phone.If the subscriber is not found, the user can solve the time of searching around and process the message only by the software without any additional device. There is an advantage that can further enhance the function of the key phone system.

Claims (1)

A message method in a key phone system having a key matrix and an LCD display, comprising: a first step (2a-2c) of receiving a message key and displaying a status on an LCD and confirming whether the message is a desired message; and the first step (2a-) In step (2c) of 2c), a second step (2f) of checking whether the next desired message is received when the message is not a desired message, and the status is displayed on the LCD by receiving a message key input when the next desired message is received in the second step (2f). A third step (2g-2i) of checking whether the message is directly input when the message is not the next desired message; and checking whether the message is canceled when the message is not in the direct input mode of the third step (2g-2i) and directly inputting the message. In the fourth step (2j-2l) of receiving the hold key input and displaying the cursor on the LCD and displaying the desired number, the number of (2m) in the fourth step (2j-2l) is the correct alphabet and number. Create a message and not a frame Move the cursor to the right if you need to leave a space between the fifth step (2n-2p, 2q) to delete the ruler and check whether the message is canceled and the other desired message of (2q) in the fifth step (2n-2p, 2q). When the message is completed in the sixth step (2r-2t) and the second step (2t) of the sixth step (2r-2t) to check whether the desired message is completed if the mode is not spaced one space and the first If the desired message in step (2c) of step (2a-2c) is not canceled, it is characterized in that the seventh step (2d, 2m, 2o) to leave a message and display the status on the LCD according to the message end key input How to display out of office message in key phone system.

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