KR900007708B1 - Reservation method and telephone system - Google Patents

Abstract

The telephone for connecting the desired counter part on desired time automaticaly comprises a keyboard (10), a circuit (20) detecting the hook state, a line interface circuit (30) interfacing the circuit (20) and a public tephone line (40), a controller (50) providing control key data by control key operation, a CPU controlling the system, a clock circuit (70) providing the alarm at preset time, a time displayer (80) displaying the time with output of the clock circuit, and an interrupt driver (90) providing the interrupt signal to the CPU by the alarm signal.

Description

Scheduled Calls and Scheduled Calls

1 is a circuit diagram according to the present invention.

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

* Explanation of symbols for main parts of the drawings

10: telephone plate part 20: telephone circuit part

30: line interface 40: public telephone line

50: control key 60: central processing unit

70: clock circuit 80: time display

90: interrupt driver

The present invention relates to a reserved call telephone and a reserved call method, and in particular, in a general multifunction telephone, an alarm function of an electronic clock is added to automatically make a call using a pre-stored telephone number at a desired time. The present invention relates to a telephone call and a scheduled call method.

In general, a multifunctional telephone is provided with a central processing unit (CentraI Processing Unit) in a conventional telephone, such as the storage function of a predetermined telephone number, redialing function, speed dialing function, on-hook dialing, etc. It provides various functions that are convenient for users by enabling various functions.

However, the conventional multi-function phone does not have a reserved call function, that is, a function in which the user memorizes a predetermined phone number in advance and automatically connects the call to a desired time. There was an inefficient factor in that.

Accordingly, an object of the present invention is to provide a reservation call phone and a reservation call method in which a predetermined telephone number and a call time are inputted in advance in a reservation attending phone and a reservation attending method so that a call can be automatically connected at a set time. Is in.

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

)와 상기 시계회로부(70)의 출력단자에 접속되어 상기 알람신호에 의하여 상기 중앙처리장치(60)에 인터럽트신호를 제공하는 인터럽트구동부(90)로 구성된다.1 is a flow chart according to the present invention, which includes a telephone pad (Key Pad) 10 for outputting telephone number key data in accordance with a key operation with a telephone number key, and transmission and reception signals under predetermined control. The telephone circuit unit 20 detects a hook state and outputs a hook detection signal, and one side is connected to the telephone circuit unit 20 and the other side is connected to a public telephone line 40 so that the telephone circuit unit 20 A line interface unit 30 for interfacing the transmitted and received signals to the control panel; a control key unit 50 having a plurality of control keys and outputting control key data according to a key operation; It is connected to the output terminal of the telephone plate plate 10, the input / output terminal of the telephone circuit unit 20 and the output terminal of the control key unit 50, the telephone number key data, the control key data, the hook detection signal and the interrupt ( Interrupt) input signal It is connected to the central processing unit 60 and the output terminal of the control key unit 50 to control the system as a whole. A clock circuit section 70 for outputting a time display signal by outputting an alarm, a time display section 80 connected to an output terminal of the clock circuit section 70, and displaying a predetermined time by the time display signal; Interrupt input terminal of processing unit 60

And an interrupt driver 90 connected to the output terminal of the clock circuit unit 70 and providing an interrupt signal to the CPU 60 by the alarm signal.

In the configuration of FIG. 1, a part consisting of the telephone plate plate 10, the telephone circuit unit 20, the line interface unit 30, the control key unit 50, and the central processing unit 60 is provided with a speaker phone. One common multifunction phone is the equivalent. And the public telephone line 40 is a general public telephone. In addition, the clock circuit unit 70 may use an integrated circuit (IC) chip for a clock as a general clock circuit that generates an alarm signal when the set time is set by the alarm time.

2 is a flow chart of a reservation call method according to the present invention, an interrupt generation check process for checking whether an interrupt is generated, and whether a reservation key is input when an interrupt is not generated during the interrupt generation check process and stored if a reservation key is input. A call reservation check process for checking whether a phone number is present, a reservation delete process for deleting a stored phone number if a delete key is input by checking whether a delete key is input when there is a stored phone number in the call reservation check process, and the call When there is no stored phone number in the reservation check process and when there is no delete key input, call reservation process for inputting and storing the phone number according to key input and storing the interrupt is enabled, and hook when an interrupt occurs in the interrupt occurrence check process. Send a Hook Off signal to form a call loop and The process of making a scheduled call to read and send the stored phone number to make a predetermined call and to check whether the hook is on and delete the phone number which has been made a predetermined call when the hook is turned on. Call reservation waiting process is performed.

2 is an operation flowchart of the central processing unit 60 in the configuration of FIG.

Hereinafter, an operation example of FIG. 1 and FIG. 2 according to the present invention will be described in detail. The control key 50 of FIG. 1 is for controlling the designation of a talk time and a telephone number during a reserved call according to the present invention. The control key 50 uses the control key 50 to transmit to a counterpart in the reservation mode of the clock circuit unit 70. Specify the time you want to call. Then, the telephone number to be called is temporarily suspended by the control unit 50 by the control of the central processing unit 60 and the dial circuit in the telephone directory 20, and then the number in the telephone directory unit 10. By input, it is stored in the central processing unit 60 through the telephone circuit unit 20. After that, when the time specified by the clock circuit unit 70 reaches a predetermined alarm signal ALARM, the central processing unit 60 applies an interrupt signal to the central processing unit 60 through the interrupt driver 90. The reserved call function of the present invention is performed by dialing the stored telephone number and supplying a ring to the telephone.

Therefore, when the power is "on", the central processing unit 60 of FIG. 1 checks whether an interrupt is generated in step (A1) of FIG. 2 and checks whether a reservation key is input in step (A2) when no interruption is generated. . At this time, if the reservation key is not inputted from the control key unit 50, the looping is performed in step (Al). If the reservation key is input, the process proceeds to step A3 to check whether there is a phone number stored in a predetermined storage area. . When there is a stored phone number in step (A3), it checks whether the delete key is input in step (A4), and when the delete key is input, deletes the stored phone number and loops to step (Al). This allows you to enter a new phone number. In addition, when there is no stored phone number in step (A3) and when the delete key is not input in step (A4), the process proceeds to step (A6) and the phone number input from the phone plate unit 10 by the user's operation is obtained. Store in a predetermined storage area therein. In other words, if there is no stored phone number, a new phone number is stored and stored. If there is a stored phone number but the delete key is not input, the stored phone number is modified to a new phone number. At this time, the user operates the control key unit 50 to set a call time for making a scheduled call to the clock circuit unit 70, and the clock circuit unit 70 outputs a time display signal to the time display unit 80 to set a time and Display the current time. After performing step (A6), the process proceeds to step (A7) to enable the interrupt, and then loops to the step (Al) to make a reservation call according to the present invention when the set time arrives.

)에 입력되면 (A8)단계를 수행한다. 상기 (A8)단계에서는 상기 전화기회로부(20)로 훅크 오프신호를 송출한다. 이에 따라 상기 전화기회로부(20)는 소정 스피커 폰을 구동함으로써 통화 루프를 형성하게 된다. 상기 (A8)단계 수행후 (A9)단계에서 저장된 전화번호를 리드하여 상기 전화기회로부(20)로 송출한다. 이에 따라 상기 전화기회로부(20)는 입력된 상기 전화번호를 DTMF(DuaI Tone Multi-Frequency)신호로 바꾸어 공중전화선(40)을 통하여 송출함으로써 다이얼링하게 되고 소정 통화를 실시하게 된다. 그러므로 예약된 통화가 수행되며, 통화종료 여부를 검사하기 위해 (A11)단계에서 훅크 온 여부를 검사한다. 이때 예약 통화가 완료되어 상기 전화기회로부(20)로부터 훅크 온 상태를 검출한 훅크검출신호가 입력되면 (A12)단계에서 상기 통화를 한 저장되었던 전화번호를 삭제한후 (A13)단계로 진행한다. 상기 (A13)단계에서는 인터럽트를 디스에이블시킨후 상기 (Al)단계로 루핑하여 전술한 과정을 반복한다.On the other hand, when the interrupt occurs in step (Al), that is, the reserved call time set as described above, the interrupt signal is generated in the interrupt driver 90 by the alarm signal ALARM generated and input from the clock circuit unit 70. Interrupt input terminal

) Is entered, perform step (A8). In the step (A8), the hook-off signal is sent to the telephone circuit unit 20. Accordingly, the telephone circuit unit 20 forms a call loop by driving a predetermined speaker phone. After performing step (A8), the phone number stored in step (A9) is read and sent to the phone circuit unit 20. Accordingly, the telephone circuit unit 20 converts the input telephone number into a DuI Tone Multi-Frequency (DTMF) signal and transmits it through the public telephone line 40 to make a phone call. Therefore, the reserved call is performed, and the hook-on is checked in step (A11) to check whether the call is terminated. At this time, if the reserved call is completed and the hook detection signal detecting the hook-on state is input from the telephone circuit unit 20, the stored phone number having the call is deleted in step (A12), and then the process proceeds to step (A13). In the step (A13), the interrupt is disabled and then looped to the (Al) step to repeat the above process.

As described above, the present invention has an advantage of allowing a user to have a more convenient social life by providing a reserved call function by attaching a clock circuit to a conventional multifunction telephone.

Claims (2)

Telephone number plate section (0) having a telephone number key and outputting telephone number key data in accordance with a key operation, and telephone circuit portion which detects a hook state by processing transmission and reception signals by predetermined control and outputs a hook detection signal. 20, a line interface unit 30 connected to the telephone circuit unit 20 and the other side connected to the public telephone line 40 to interface transmission and reception signals to the telephone circuit unit 20, and a plurality of lines. A control unit 50 having a control key for outputting control key data according to a key operation, an output terminal of the upper telephone plate plate 10, an input / output terminal of the telephone circuit unit 20, and an output of the control key unit 50; A reservation telephone telephone having a central processing unit (60) connected to a terminal for controlling overall system by inputting the telephone number key data and the control key data and the hook detection signal and the interrupt signal. The clock circuit unit 70 is connected to an output terminal of the control key unit 50 and inputs the control key data to output an alarm signal when the set time for the control key data is reached, and outputs a time display signal. A time display unit 80 connected to an output terminal of the clock circuit unit 70 for displaying a predetermined time by the time display signal, and an interrupt input terminal of the central processing unit 60 (

And an interrupt driver (90) connected to an output terminal of the clock circuit unit (70) to provide an interrupt signal to the central processing unit (60) by the alarm signal. In the reserved call method of the multifunction telephone, an interrupt generation check process (Al) for checking whether an interrupt is generated and a reserved key is input if the reservation key is input when the interrupt key is not generated during the interrupt generation check process. Call reservation check process (A2, A3) to check whether there is a number, and if the delete key is entered when there is a stored phone number in the call reservation check process (A2, A3). If there is no phone number stored in the reservation reservation process (A4, A5) and the call reservation checking process (A2, A3) to delete and there is no delete key input, an interrupt in When it is determined that an interrupt has occurred in the call reservation process (A6, A7) and the interrupt occurrence checking process (Al), the hook-off signal is sent. Form a loop, and conducts a scheduled call process (A8, A9, Al0) to lead and transmit the stored telephone number to make a predetermined call, and checks whether the hook is on and the telephone number to which the predetermined call is made when hooked on. Call reservation process, characterized in that consisting of a call reservation waiting process (Al1, A12, A13) to delete and disable the interrupt.

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