FR2449368A1 - Circuit de commutation muni de plusieurs canaux d'entree et d'un canal de sortie - Google Patents

Circuit de commutation muni de plusieurs canaux d'entree et d'un canal de sortie

Info

Publication number
FR2449368A1
FR2449368A1 FR8003112A FR8003112A FR2449368A1 FR 2449368 A1 FR2449368 A1 FR 2449368A1 FR 8003112 A FR8003112 A FR 8003112A FR 8003112 A FR8003112 A FR 8003112A FR 2449368 A1 FR2449368 A1 FR 2449368A1
Authority
FR
France
Prior art keywords
output channel
transistor
current
input channels
output
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR8003112A
Other languages
English (en)
Other versions
FR2449368B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2449368A1 publication Critical patent/FR2449368A1/fr
Application granted granted Critical
Publication of FR2449368B1 publication Critical patent/FR2449368B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/603—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors with coupled emitters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H03K17/6257—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means
    • H03K17/6264—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors with several inputs only combined with selecting means using current steering means

Abstract

CIRCUIT DE COMMUTATION DANS LEQUEL, PARMI PLUSIEURS CANAUX D'ENTREE, UN SEUL CANAL D'ENTREE A LA FOIS PEUT ETRE RACCORDE A UN CANAL DE SORTIE PAR L'INTERMEDIAIRE D'UN DES DISPOSITIFS COMMUTATEURS QUE COMPORTE LEDIT CIRCUIT. CHACUN DE CEUX-CI COMPORTE UNE PAIRE DE TRANSISTORS DONT LES EMETTEURS SONT INTERCONNECTES, ALORS QU'UNE SOURCE DE COURANT COMMUTABLE EST BRANCHEE DANS LA LIGNE D'EMETTEURS DE CHAQUE PAIRE, LA BASE DU PREMIER TRANSISTOR DE CHAQUE PAIRE ETANT RACCORDEE A LA SORTIE. LE CANAL DE SORTIE COMPORTE UN TRANSISTOR DONT L'EMETTEUR EST RACCORDE A LA SORTIE ET DONT LA BASE EST RACCORDEE AU NOEUD FORME PAR LES COLLECTEURS INTERCONNECTES DES DEUXIEMES TRANSISTORS, CE NOEUD ETANT RACCORDE A UNE BORNE SOUS TENSION A TRAVERS UNE RESISTANCE. A L'AIDE D'UN COMMUTATEUR DE SELECTION RACCORDE AUX SOURCES DE COURANT COMMUTABLES, UN SEUL DES CANAUX D'ENTREE A LA FOIS PEUT ETRE RACCORDE AU CANAL DE SORTIE. POUR AMELIORER L'ATTENUATION DE LA DIAPHOTIE, LES SOURCES DE COURANT NON PARCOURUES PAR DU COURANT SONT PORTEES A SATURATION, L'ABSENCE DE COURANT ETANT A CETTE OCCASION GARANTIE PAR LA LIMITATION DES VALEURS MAXIMALE ET MINIMALE DES SIGNAUX D'ENTREE PAR RAPPORT A LA TENSION DE COMMUTATION DES SOURCES DE COURANT. APPLICATIONS: CIRCUIT POUR STUDIOS DE TELEVISION.
FR8003112A 1979-02-16 1980-02-13 Circuit de commutation muni de plusieurs canaux d'entree et d'un canal de sortie Expired FR2449368B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7901270,A NL186789C (nl) 1979-02-16 1979-02-16 Schakelcircuit uitgevoerd met meerdere ingangskanalen en een uitgangskanaal.

Publications (2)

Publication Number Publication Date
FR2449368A1 true FR2449368A1 (fr) 1980-09-12
FR2449368B1 FR2449368B1 (fr) 1985-10-18

Family

ID=19832649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003112A Expired FR2449368B1 (fr) 1979-02-16 1980-02-13 Circuit de commutation muni de plusieurs canaux d'entree et d'un canal de sortie

Country Status (10)

Country Link
US (1) US4349750A (fr)
JP (1) JPS55112036A (fr)
AU (1) AU5551580A (fr)
CA (1) CA1135799A (fr)
DE (1) DE3003792A1 (fr)
ES (1) ES8102437A1 (fr)
FR (1) FR2449368B1 (fr)
GB (1) GB2046546B (fr)
IT (1) IT1128224B (fr)
NL (1) NL186789C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3681048A1 (fr) * 2019-01-11 2020-07-15 Vestel Elektronik Sanayi ve Ticaret A.S. Procédé, dispositif et produit programme informatique pour atténuer la diaphonie inter-câble

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402008A (en) * 1981-08-27 1983-08-30 Bell Telephone Laboratories, Incorporated Wideband switching architecture
US4403246A (en) * 1981-11-13 1983-09-06 Rca Corporation Vertical detail enhancement on/off switch
DE3215518C1 (de) * 1982-04-26 1983-08-11 Siemens AG, 1000 Berlin und 8000 München Verknuepfungsglied mit einem Emitterfolger als Eingangsschaltung
DE3222607A1 (de) * 1982-06-16 1983-12-22 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung mit mehreren, durch aktive schaltungen gebildeten signalpfaden
US4490626A (en) * 1982-07-29 1984-12-25 Irvine Sensors Corporation Multiplexer circuitry for high density analog signals
USRE33331E (en) * 1982-07-29 1990-09-11 Irvine Sensors Corporation Multiplexer circuitry for high density analog signals
JPS5961046A (ja) * 1982-09-30 1984-04-07 Fujitsu Ltd 集積回路装置
US4591740A (en) * 1983-02-28 1986-05-27 Burr-Brown Corporation Multiple input port circuit having temperature zero voltage offset bias means
US4535360A (en) * 1983-09-27 1985-08-13 At&T Bell Laboratories Low power wideband switching array element
US4578594A (en) * 1984-01-25 1986-03-25 Fairchild Camera & Instrument Corporation Circuit and method for split bias enable/inhibit memory operation
US4745478A (en) * 1985-08-01 1988-05-17 Nintendo Co., Ltd. RF switch
US4686392A (en) * 1985-10-30 1987-08-11 International Business Machines Corporation Multi-functional differential cascode voltage switch logic
US4779270A (en) * 1987-04-15 1988-10-18 International Business Machines Corporation Apparatus for reducing and maintaining constant overshoot in a high speed driver
US4932027A (en) * 1988-03-22 1990-06-05 Texas Instruments Incorporated Single-level multiplexer
US4963767A (en) * 1988-08-25 1990-10-16 National Semiconductor Corporation Two-level ECL multiplexer without emitter dotting
US4993404A (en) * 1989-06-26 1991-02-19 Lane Timothy G Fluoroscopy switching device
US5127394A (en) * 1989-06-26 1992-07-07 Tilane Corporation Fluoroscopy switching device
US5089718A (en) * 1990-02-26 1992-02-18 U.S. Philips Corp. Dynamic current divider circuit with current memory
DE4114201C1 (en) * 1991-04-30 1992-10-01 Siemens Ag, 8000 Muenchen, De Satellite transmitted wideband analogue video signal switch - has base terminal connected with output terminal and through current source to positive potential
DE59207510D1 (de) * 1991-04-30 1996-12-19 Siemens Ag Schaltungsanordnung zum Schalten von Analogsignalen auf eine Ausgangsklemme
KR930008655B1 (ko) * 1991-07-02 1993-09-11 삼성전자 주식회사 누화방지 스위치회로
US6368269B1 (en) 1993-05-20 2002-04-09 Tilane Corporation Apparatus for concurrent actuation of multiple foot pedal operated switches
US5600278A (en) * 1995-02-03 1997-02-04 Hewlett-Packard Company Programmable instrumentation amplifier
US5594378A (en) * 1995-04-13 1997-01-14 Kruse; Neils A. Fast high voltage modulator circuit
US5686974A (en) * 1995-06-21 1997-11-11 Sony Corporation Method of and apparatus for providing a high speed video switch
US6504419B1 (en) 2001-03-28 2003-01-07 Texas Instruments Incorporated High-speed closed loop switch and method for video and communications signals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617916A (en) * 1969-07-24 1971-11-02 Beckman Instruments Inc Commutated buffer amplifier
US3783307A (en) * 1972-01-03 1974-01-01 Trw Inc Analog transmission gate
FR2204078A1 (fr) * 1972-09-09 1974-05-17 Philips Nv

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638131A (en) * 1969-09-29 1972-01-25 Nat Semiconductor Corp Multiplexing circuit with stage isolation means
DE2506034C3 (de) * 1975-02-13 1978-08-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum elektronischen Durchschalten einer Wechselspannung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617916A (en) * 1969-07-24 1971-11-02 Beckman Instruments Inc Commutated buffer amplifier
US3783307A (en) * 1972-01-03 1974-01-01 Trw Inc Analog transmission gate
FR2204078A1 (fr) * 1972-09-09 1974-05-17 Philips Nv

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/77 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3681048A1 (fr) * 2019-01-11 2020-07-15 Vestel Elektronik Sanayi ve Ticaret A.S. Procédé, dispositif et produit programme informatique pour atténuer la diaphonie inter-câble

Also Published As

Publication number Publication date
GB2046546B (en) 1983-02-23
ES488567A0 (es) 1980-12-16
NL7901270A (nl) 1980-08-19
GB2046546A (en) 1980-11-12
DE3003792A1 (de) 1980-12-11
AU5551580A (en) 1980-08-21
CA1135799A (fr) 1982-11-16
FR2449368B1 (fr) 1985-10-18
DE3003792C2 (fr) 1988-07-21
IT8067213A0 (it) 1980-02-13
ES8102437A1 (es) 1980-12-16
US4349750A (en) 1982-09-14
IT1128224B (it) 1986-05-28
JPH0123009B2 (fr) 1989-04-28
NL186789B (nl) 1990-09-17
JPS55112036A (en) 1980-08-29
NL186789C (nl) 1991-02-18

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Legal Events

Date Code Title Description
ST Notification of lapse