KR930022090A - 용량성 근접 센서 - Google Patents

용량성 근접 센서 Download PDF

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Publication number
KR930022090A
KR930022090A KR1019930004936A KR930004936A KR930022090A KR 930022090 A KR930022090 A KR 930022090A KR 1019930004936 A KR1019930004936 A KR 1019930004936A KR 930004936 A KR930004936 A KR 930004936A KR 930022090 A KR930022090 A KR 930022090A
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KR
South Korea
Prior art keywords
sensor
sensing electrode
electrode
handset
capacitive proximity
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KR1019930004936A
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English (en)
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알버트 보이에 로버트
로리머 밀러 가브리엘
Original Assignee
지.디. 그린
아메리칸 텔리폰 앤드 텔레그라프 캄파니
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Publication of KR930022090A publication Critical patent/KR930022090A/ko

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/2405—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by varying dielectric
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/605—Portable telephones adapted for handsfree use involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K2017/9602—Touch switches characterised by the type or shape of the sensing electrodes
    • H03K2017/9604—Touch switches characterised by the type or shape of the sensing electrodes characterised by the number of electrodes
    • H03K2017/9613—Touch switches characterised by the type or shape of the sensing electrodes characterised by the number of electrodes using two electrodes per touch switch

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Telephone Function (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Telephone Set Structure (AREA)

Abstract

발표된 용량성 근접 센서는 폭넓게 여러 방면의 용도에서 사용되는 다른 형상, 치수, 재료로 제조될 수 있다. 이러한 각 센서는 감지 전극 및 가아드 전극을 포함한다. 상기 센서 전극 및 가아드 전극은, 그 용도에 적합하도록 양면 회로 기관 형태와 같이, 절연층에 의해 분리된 병렬형 도전체일 수 있다. 이러한 센서는 광학적 바코드스캐너와 관련하여 사용하는데에 투명하다. 또 다른 센서는 전화 핸드셋과 관련하여 사용하는데에 환형이다. 상기 감지 전극 및 가아드 전극은 RF신호에 의해 일제히 구동된다. 상기 센서로 근접하는 대상물은 상기 감지 전극에 근접하는 대상물에 의해 야기되는 감지 전극을 통해 흐르는 RF 전류의 변화를 탐지함으로써 관찰된다.

Description

용량성 근접 센서
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 바이필러 변압기를 거쳐 인가되 RF신호에 의해 구동되는 용량성 근접 센서의 구성도.
제2도는 대상물이 탐지될 위치에 위치할 때 스캐너를 턴온할 목적으로 광학적 바코드 스캐너에 적용된 본 발명에 따른 투명한 용량성 근접 센서 도시도.
제3도는 제2도에 도시된 바코드 스캐너용 변형예의 센서 도시도.
제4도는 송신기와 사용자의 입사이의 거리를 감지하기 위해 전화 핸드셋용으로 본 발명에 따른 환형 용량성 근접 센서 도시도.
제5도는 제4도에서 도시된 용도를 위한 망 구조 전극을 사용하는 변형에의 용량성 근접 센서 도시도.
제6도는 제4도의 센서와 유사하지만, 수신기와 사용자의 귀사이의 거리에 의존하는 스피커폰 또는 통상의 핸드셋으로서 전화 핸드셋의 동작 모드를 제어하기 위해 배열되는 센서 도시도.

Claims (8)

  1. 감지 전극(11)과 상기 감지 전극으로부터 이격되어 감지 전극을 차폐하도록 형성된 가아드 전극(12)을 구비한 대상을 탐지용의 용량성 근접 센서에 있어서, 상기 감지 전극 및 상기 가아드 전극에 RF신호를 일제히 인가하는 수단(15,21,22) 및 상기 감지 전극에 상기 대상물이 근접함에 의해 야기되는 상기 감지 전극을 통해 흐르는 RF 전류를 변화로부터 제어 신호를 발생하는 수단(23,24,26,27)을 또한 구비하는 것을 특징으로 하는 용량성 근접 센서.
  2. 제1항에 있어서, 소스와 반사된 광선(41)이 통과하는 윈도우를 갖는 형상의 광학적 바코드 스캐너용으로 사용하기 위해 적용되는 센서에 있어서, 상기 감지 전극(31) 및 상기 가아드 전극(32)이 상기 광선을 투과시키고 상기 윈도우를 형성하는 투명한 절연층(33)에 의해 분리되고, 상기 센서는 상기 제어 신호에 응답하여 상기 소스광선을 턴 온 및 턴 오프하는 수단(40)을 또한 구비하는 것을 특징으로 하는 용량성 근접 센서.
  3. 제1항에 있어서, 윈도우를 통해 소스 및 반사된 광선이 통과하는 윈도우를 갖는 형상의 광학적 바코드 캐너용으로 사용하기 위해 적용되는 센서에 있어서 상기 감지 전극(31) 상기 절연층(38) 및 상기 가아드 전극(39)이 상기 윈도우를 둘러싸는 프레임 형상이고 상기 센서는 상기 제어 신호에 응답하여 상기 광선을 턴 온 및 턴 오프하는 수단을 또한 구비하는 것을 특징으로 하는 용량성 근접 센서.
  4. 제1항에 있어서, 핸드셋 부위에서 사용자의 머리까지의 거리에 따라 전화 핸드셋(50)을 제어하도록 적용되는 센서에 있어서, 상기 감지 전극(52) 및 상기 가아드 전극(54)이 상기 핸드셋내에 합체되고, 상기 센서가 상기 제어 신호에 응답하여 상기 핸드셋 내의 오디어 신호의 진폭을 제어하는 수단을 또한 구비하는 것을 특징으로 하는 용량성 근접 센서.
  5. 제4항에 있어서, 상기 핸드셋의 송신기로부터 오디오 신호를 제어하도록 적용되는 센서에 있어서, 상기 감지 전극(52), 상기 가아드 전극(54) 및 그 사이에 끼워진 절연층(53)은 환형으로서 상기 전화 송신기를 에워싸도록 위치된 것을 특징으로 하는 용량성 근접 센서.
  6. 제4항에 있어서, 상기 핸드셋의 송신기로부터 오디어 신호를 제어하도록 적용된 센서에 있어서, 상기 감지 전극(76) 및 상기 가아드 전극(77)이 상기 송신기를 덮는 형상의도전성 망으로 제조되는 것을 특징으로 하는 용량성 근접 센서.
  7. 제4항에 있어서, 상기 핸드셋 내의 확성기(63)에서 사용자의 귀까지의 거리에 따라 통상의 핸드셋 또는 스피커폰으로서의 상기 전화 핸드셋(70)동작을 제어하도록 적용된 센서에있어서, 상기 감지 전극(60), 상기 가아드 전극 및 그 사이에 끼워넣은 절연층이 환형이고 상기 확성기를 둘러싸도록 위치되며, 상기 센서가 상기 제어 신호에 응답하여, 상기 핸드셋으로 하여금 상기 확성기가 사용자의 귀에 가까울 때는 통상적인 전화 핸드셋으로서 상기 핸드셋이 사용자의 귀에서 멀어질때는 스피커폰으로서 동작하게 하는 수단(64)을 또한 구비한 것을 특징으로 하는 용량성 근접 센서.
  8. 제1항에 있어서, RF신호를 일제히 인가하는 상기 수단이 수동 RF브리지(22,25)이고, 변화를 발견하는 상기 수단이 상기 RF 브리지에 접속된 입력을 구비한 적분기(23,26,27)이고, RF신호를 인가하는 상기 수단에 접속된 제1입력과 상기 적분기의 출력에 접소된 제2입력을 구비한 동기 검출기(24)이며, 상기 제어 신호가 상기동기 검출기의 출력인 것을 부가적인 특징으로 하는 용량성 근접 센서.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930004936A 1992-04-01 1993-03-29 용량성 근접 센서 KR930022090A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US861,667 1992-04-01
US07/861,667 US5337353A (en) 1992-04-01 1992-04-01 Capacitive proximity sensors

Publications (1)

Publication Number Publication Date
KR930022090A true KR930022090A (ko) 1993-11-23

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Country Link
US (1) US5337353A (ko)
EP (1) EP0564164B1 (ko)
JP (1) JPH0658967A (ko)
KR (1) KR930022090A (ko)
DE (1) DE69310981T2 (ko)

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DE69310981T2 (de) 1997-09-04
DE69310981D1 (de) 1997-07-03

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