KR910020621A - Start signal detection circuit of receiver - Google Patents

Start signal detection circuit of receiver Download PDF

Info

Publication number
KR910020621A
KR910020621A KR1019900007702A KR900007702A KR910020621A KR 910020621 A KR910020621 A KR 910020621A KR 1019900007702 A KR1019900007702 A KR 1019900007702A KR 900007702 A KR900007702 A KR 900007702A KR 910020621 A KR910020621 A KR 910020621A
Authority
KR
South Korea
Prior art keywords
voltage
power supply
circuit
receiver
supply circuit
Prior art date
Application number
KR1019900007702A
Other languages
Korean (ko)
Other versions
KR940002727B1 (en
Inventor
이병조
Original Assignee
유채준
대한전선 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 유채준, 대한전선 주식회사 filed Critical 유채준
Priority to KR1019900007702A priority Critical patent/KR940002727B1/en
Publication of KR910020621A publication Critical patent/KR910020621A/en
Application granted granted Critical
Publication of KR940002727B1 publication Critical patent/KR940002727B1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C21/00—Systems for transmitting the position of an object with respect to a predetermined reference system, e.g. tele-autographic system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Selective Calling Equipment (AREA)

Abstract

내용 없음No content

Description

수신기의 기동신호 감지회로Start signal detection circuit of receiver

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

첨부된 도면은 본 발명에 따른 수신기의 기동신호 감지회로도이다.The accompanying drawings are diagrams of a start signal detection circuit of a receiver according to the present invention.

Claims (2)

원격검침시에 전화국으로부터 인가되는 소정 레벨의 제1DC기동전압을 전파정류하기 위한 브릿지회로와, 링신호를 감지하기 위한 링검출회로와, 기동전압에 의해 동작하여 제2전압과 전류를 발생시키기 위한 전원회로와, 전원회로에서 발생되는 전류에 의해 동작하여 마이크로프러세서를 이에이블시키기 위한 듀얼톤 수신기회로와, 입력되는 원격제어신호를 상기의 마이크로프로세서에 인가하고, 계측기로부터 검출된 상기의 마이크로크로세서의 계측량을 복조하여 원격검침센터로 전송하기 위한 변복조 장치를 구비한 수신기의 기동신호 감지회로에 있어서 ; 상기의 제1레벨의 DC기동진압 인가시 상기의 전원회로를 통과한 제2전압을 상기의 전원회로에 궤환시켜 상기의 기동전압이 상기의 전류에 의해 소정의 레벨로 강화되더라도 상기 듀얼톤 수신회로를 계속적으로 작동시키기 위한전압신호 궤환부와; 상기의 제1기동전압이 인가될 경우에는 상기 전압신호 궤환부의 동작을 계속유지시키고, 상기의 제1기동전압이 인가되지 않을 경우에는 라인상의 노이즈 전압에 의한 기동을 방지하기 위한 기동방지부로 구성시켜서 됨을 특징으로 하는 수신기의 기동신호 감지회로.A bridge circuit for full-wave rectification of a first level DC starting voltage applied from a telephone station during remote meter reading, a ring detection circuit for sensing a ring signal, and a second voltage and current for operating by starting voltage A dual tone receiver circuit for operating the microprocessor by operating on a power supply circuit, a current generated from the power supply circuit, and applying the input remote control signal to the microprocessor, and detecting the microcro A start signal detection circuit of a receiver having a demodulation device for demodulating the measured amount of a parser and transmitting it to a remote meter reading center; The dual-tone receiving circuit returns the second voltage passing through the power supply circuit to the power supply circuit when the DC starting voltage of the first level is applied to the power supply circuit so that the starting voltage is enhanced to a predetermined level by the current. A voltage signal feedback unit for continuously operating the unit; When the first start voltage is applied, the operation of the voltage signal feedback unit is continuously maintained, and when the first start voltage is not applied, a start prevention unit is configured to prevent starting by the noise voltage on the line. Start signal detection circuit of the receiver, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900007702A 1990-05-28 1990-05-28 Driving signal sensing circuit with driving voltage stabilizing circuit of receiver KR940002727B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900007702A KR940002727B1 (en) 1990-05-28 1990-05-28 Driving signal sensing circuit with driving voltage stabilizing circuit of receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900007702A KR940002727B1 (en) 1990-05-28 1990-05-28 Driving signal sensing circuit with driving voltage stabilizing circuit of receiver

Publications (2)

Publication Number Publication Date
KR910020621A true KR910020621A (en) 1991-12-20
KR940002727B1 KR940002727B1 (en) 1994-03-31

Family

ID=19299488

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900007702A KR940002727B1 (en) 1990-05-28 1990-05-28 Driving signal sensing circuit with driving voltage stabilizing circuit of receiver

Country Status (1)

Country Link
KR (1) KR940002727B1 (en)

Also Published As

Publication number Publication date
KR940002727B1 (en) 1994-03-31

Similar Documents

Publication Publication Date Title
KR900701113A (en) Interface for Telephone System / Paging System
KR920003690A (en) Optical receiver circuit
MY116134A (en) Power supply unit
KR910010899A (en) Receiver unit that can respond quickly to multi-path reflection disturbances
KR960036491A (en) The communication terminal apparatus
FI962919A0 (en) Method for detecting a subscriber response during dialing and using a subscriber line connection circuit for detecting a subscriber response during dialing
KR900003723A (en) Microprocessors and Integrated Circuit Devices
KR910020621A (en) Start signal detection circuit of receiver
KR850003777A (en) Automatic faucet
KR840004964A (en) Key board with microcomputered encoder
KR840002185A (en) Serial signal transmitter
KR900019337A (en) FM demodulation circuit
ES8607652A1 (en) Detection circuit for current varations.
KR880008591A (en) Relay drive device for bell signal switching
KR910015147A (en) Remote digital feedback device with variable signal detection for CCITT V.54 LOOP 2
KR920006208Y1 (en) Sensing circuit of direct distance dialing
KR850002187A (en) Telephone short circuit
KR880006880A (en) Housing information transmitter
KR940012874A (en) Pulsating Interference Signal Detection Device
JPS57192875A (en) Detecting device for quantity of electricity
KR880008576A (en) How to display busy signal of modem
JPS6450661A (en) In-home information system
KR880002362A (en) Fax / Tel Auto Switch
KR920014234A (en) Power supply control circuit of electronic device and control method
KR900001212A (en) Facsimile Communication Error Prevention System

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20090218

Year of fee payment: 16

LAPS Lapse due to unpaid annual fee