KR940010603A

KR940010603A - Subscriber set

Info

Publication number: KR940010603A
Application number: KR1019930020993A
Authority: KR
Inventors: 샤틀러 피터
Original assignee: 프레데릭 얀 스미트; 필립스 일렉트로닉스 엔.브이.
Priority date: 1993-10-11
Filing date: 1993-10-11
Publication date: 1994-05-26

Abstract

본 발명은 2개의 라인 단자와, 훅 스위치 및, 전자식 세트 회로를 포함하는 가입자 세트(subscriber set)에 관한 것이다.The present invention relates to a subscriber set comprising two line terminals, a hook switch and an electronic set circuit.

본 발명의 목적은 훅 스위치의 기능을 유리하게 실천시키고 계전기 또는 기계적 스위치에 의해서 라인 전류가 차단되지 않게끔 하는 것이다. 본 발명에 따른 가입자 세트는, 제1트랜지스터의 주 전류 통로와 전화기 세트 회로의 직렬조합이 라인 단자들에 접속되고, 가입자 세트가 상기 제1트랜지스터의 주 전류 통로와 병렬 접속되어 상기 제1트랜지스터가 비도통일 경우 전자식 전화기 세트 회로의 적어도 일부에 전력을 공급하는테 이용되는 적어도 하나의 저항을 포함하고, 훅 스위치가 제1상태에서는 라인 단자들중 하나를 상기 전자식 전화기 세트 회로의 상기 일부틀 통해 상기 제1트랜지스터의 제어 전극에 접속시켜 상기 제1트랜지스터를 도통시키도록 배열되고, 제2상태에서는 나머지 다른 라인 단자를 상기 전자식 전화기 세트 회로의 상기 일부를 통해 상기 제1트랜지스터의 제어전극에 접속시켜 제1트랜지스터를 비도통시키도록 배열되는 것을 특징으로 한다.It is an object of the present invention to advantageously practice the function of a hook switch and to ensure that line current is not interrupted by a relay or mechanical switch. In the subscriber set according to the present invention, the series combination of the main current path of the first transistor and the telephone set circuit is connected to the line terminals, and the subscriber set is connected in parallel with the main current path of the first transistor so that the first transistor is connected. At least one resistor used to power at least a portion of the electronic telephone set circuit when in a non-conductive state, wherein when a hook switch is in a first state, one of the line terminals is connected through the partial frame of the electronic telephone set circuit. The first transistor is connected to the control electrode of the first transistor, and in the second state, the other line terminal is connected to the control electrode of the first transistor through the part of the electronic telephone set circuit. 1 transistor, characterized in that arranged to be non-conducting.

Description

Subscriber set

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

제1는 본 발명에 따른 가입자 세트의 블럭도,1 is a block diagram of a subscriber set according to the present invention;

제2도는 본 발명에 따른 전자식 전화 세트 회로의 일부에 대한 실시예를 나타낸 도면,2 shows an embodiment of a part of an electronic telephone set circuit according to the present invention;

제3도는 본 발명에 따른 가입자 세트에 사용되는 리세트 회로에 대한 실시예를 나타낸 도면.3 illustrates an embodiment of a reset circuit for use in a subscriber set in accordance with the present invention.

Claims

In a subscriber set comprising two line terminals, a hook switch, and an electronic telephone set circuit, a series combination of the main current path of the first transistor and the telephone set circuit is connected to the line terminals, and the subscriber set is connected to the first set. At least one resistor connected in parallel with the main current path of the transistor and used to supply power to at least a portion of the electronic telephone set circuit when the first transistor is non-conductive, and wherein the hook switch is in the first state of the line terminals. One connected to the control electrode of the first transistor via the portion of the electronic telephone set circuit to conduct the first transistor, and in the second state the other line terminal is connected to the portion of the electronic telephone set circuit. The first transistor is connected to the control electrode of the first transistor through Subscriber sets, characterized in that is arranged to.

2. The subscriber set of claim 1 wherein the telephone set circuit comprises a microprocessor having a power-down mode.

3. The state input unit according to claim 1 or 2, wherein the set of subscribers is connected to a hook output and a signal output connected to a control input of the first transistor for controlling the first transistor in response to the state of the hook switch. Subscriber set, characterized in that it comprises.

4. The subscriber set according to claim 3, wherein a reset circuit is inserted between the hook switch and the reset input of the microprocessor, the reset circuit having a signal interruption input for connecting an external power source.

The subscriber set according to any one of the preceding claims, wherein the subscriber set comprises an electronic pulse dialing circuit in which the first transistor forms part thereof.

※ Note: The disclosure is based on the initial application.