KR940003290A - Call termination processing circuit when power off the cordless phone handset - Google Patents

Call termination processing circuit when power off the cordless phone handset Download PDF

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Publication number
KR940003290A
KR940003290A KR1019920013177A KR920013177A KR940003290A KR 940003290 A KR940003290 A KR 940003290A KR 1019920013177 A KR1019920013177 A KR 1019920013177A KR 920013177 A KR920013177 A KR 920013177A KR 940003290 A KR940003290 A KR 940003290A
Authority
KR
South Korea
Prior art keywords
power
call
handset
call termination
turned
Prior art date
Application number
KR1019920013177A
Other languages
Korean (ko)
Other versions
KR950007980B1 (en
Inventor
이재철
Original Assignee
백중영
금성통신 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 백중영, 금성통신 주식회사 filed Critical 백중영
Priority to KR1019920013177A priority Critical patent/KR950007980B1/en
Publication of KR940003290A publication Critical patent/KR940003290A/en
Application granted granted Critical
Publication of KR950007980B1 publication Critical patent/KR950007980B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 무선전화기 핸드셋의 전원차단시 통화종료처리회로에 관한 것으로, 특히 통화종료를 위해 핸드셋의 전원버튼을 오프시키더라도 핸드셋의 중앙처 리장치가 감지하여 통화종료처리를 할 수 있도록 한 무선전화기 핸드셋의 전원차단시 통화종료처리회로에 관한 것이다.The present invention relates to a call termination processing circuit when power is turned off of a handset of a wireless telephone, and in particular, a cordless telephone capable of detecting and ending a call by the central processing unit of the handset even when the power button of the handset is turned off to terminate the call. It relates to a call termination processing circuit when the handset is powered off.

본 발명은 사용자가 통화중에 핸드셋의 전원제어스위치를 오프시키게 되면, 이 전원제어스우치의 오프접속단과 직렬접속된 트랜지스터의 운동작에 따라 하이레 벨신호가 중앙처리장치에 입력되고, 그에 따라 상기 중앙 처리장치는 통화종료를 하기 위해 베이스장치에 통화종료 캐리어신호를 송신하여 상기 베이스장치가 국선의 포착을 해제할 수 있다.When the user turns off the power control switch of the handset during a call, a high level signal is input to the CPU according to the motion of the transistor connected in series with the off connection end of the power control switch. The central processing unit transmits a call termination carrier signal to the base unit to terminate the call so that the base unit can release the capture of the trunk line.

Description

무선전화기 핸드셋의 전원차단시 통화종료처리회로Call termination processing circuit when power off the cordless phone handset

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 무선전화기 핸드셋의 전원차단시 통화종료 처리회로를 나타낸 회로도,2 is a circuit diagram showing a call termination processing circuit at power off of a wireless telephone handset according to the present invention;

제3도는 제2도에 도시된 통화종료처리회로의 전원스위치가 온접속된 상태의 타이밍도.3 is a timing diagram of a state where the power switch of the call termination processing circuit shown in FIG.

Claims (2)

핸드셋의 전원스위치(SW2)의 온상태에서 밧데리전원(Vl)에 의해 턴온되는 트랜지스터(TRI), 이 트랜지스터(TRI)의 턴온에 따라 도통상태로 되어 밧데리 전원(Vl)을 핸드셋의 각 회로부에 인가하는 트랜지스터(TR2), 상기 전원스위치 (SW2)의 오프시 도통상태로 통화종료전원차단신호를 발생하는 트랜지스터(TR3) 및, 상기 통화종료전원차단신호를 입 력 받아 통화종료처 리를 수행하는 중앙처 리장치 (CPU)률 구비란 것을 특징으로 하는 무선전화기 핸드셋의 전원차단시 통화종료처리회로.The transistor TRI turned on by the battery power supply Vl when the power switch SW2 of the handset is turned on, and becomes conductive when the transistor TRI is turned on. Transistor TR2, a transistor TR3 for generating a call termination power cutoff signal in a conducting state when the power switch SW2 is turned off, and a center for receiving call termination power cut signal. Call termination processing circuit when the power supply of the wireless telephone handset, characterized in that the processing unit (CPU) is provided. 제1항에 있어서, 상기 중앙처리장치(CPU)는 상기 전원제어스위치(SW2)가 오프되어 하이레벨신호가 입력되면 통화종료 캐리어신호를 발생하도록 된 것을 특징으로 하는 무선전화기 핸드셋의 전원차단시 통화종료처리회로.The CPU of claim 1, wherein the CPU is configured to generate a call termination carrier signal when the power control switch SW2 is turned off and a high level signal is input. Termination processing circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920013177A 1992-07-23 1992-07-23 The source of electric power for a wireless phone KR950007980B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920013177A KR950007980B1 (en) 1992-07-23 1992-07-23 The source of electric power for a wireless phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920013177A KR950007980B1 (en) 1992-07-23 1992-07-23 The source of electric power for a wireless phone

Publications (2)

Publication Number Publication Date
KR940003290A true KR940003290A (en) 1994-02-21
KR950007980B1 KR950007980B1 (en) 1995-07-21

Family

ID=19336855

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920013177A KR950007980B1 (en) 1992-07-23 1992-07-23 The source of electric power for a wireless phone

Country Status (1)

Country Link
KR (1) KR950007980B1 (en)

Also Published As

Publication number Publication date
KR950007980B1 (en) 1995-07-21

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