DK171287A - Indretning til synkron omskiftning - Google Patents

Indretning til synkron omskiftning

Info

Publication number
DK171287A
DK171287A DK171287A DK171287A DK171287A DK 171287 A DK171287 A DK 171287A DK 171287 A DK171287 A DK 171287A DK 171287 A DK171287 A DK 171287A DK 171287 A DK171287 A DK 171287A
Authority
DK
Denmark
Prior art keywords
synchron
change
synchron change
Prior art date
Application number
DK171287A
Other languages
English (en)
Other versions
DK171287D0 (da
Inventor
Jr Laurent A Melling
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of DK171287D0 publication Critical patent/DK171287D0/da
Publication of DK171287A publication Critical patent/DK171287A/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Manipulation Of Pulses (AREA)
  • Synchronizing For Television (AREA)
DK171287A 1986-04-09 1987-04-03 Indretning til synkron omskiftning DK171287A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/850,000 US4752927A (en) 1986-04-09 1986-04-09 Synchronous changeover

Publications (2)

Publication Number Publication Date
DK171287D0 DK171287D0 (da) 1987-04-03
DK171287A true DK171287A (da) 1987-10-10

Family

ID=25307029

Family Applications (1)

Application Number Title Priority Date Filing Date
DK171287A DK171287A (da) 1986-04-09 1987-04-03 Indretning til synkron omskiftning

Country Status (6)

Country Link
US (1) US4752927A (da)
EP (1) EP0240999B1 (da)
JP (1) JPH088662B2 (da)
CA (1) CA1303211C (da)
DE (1) DE3789156T2 (da)
DK (1) DK171287A (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020152A (en) * 1987-05-04 1991-05-28 Glista Jr Andrew S Fault tolerant-fiber optic coupler/repeater for use in high speed data transmission and the like
US4837856A (en) * 1987-05-04 1989-06-06 Glista Jr Andrew S Fault-tolerant fiber optic coupler/repeater for use in high speed data transmission and the like
JP2677418B2 (ja) * 1989-06-22 1997-11-17 富士通株式会社 Ａｔｍスイッチの系切換方式
JP2960560B2 (ja) * 1991-02-28 1999-10-06 株式会社日立製作所 超小型電子機器
US5422877A (en) * 1993-06-01 1995-06-06 Otis Elevator Company Dual bus switching
KR970072676A (ko) * 1996-04-19 1997-11-07 김광호 이중화모듈 절체장치
JP3199027B2 (ja) * 1998-05-11 2001-08-13 日本電気株式会社 デューティ測定回路、データ識別システム、データ信号再生システム、デューティ測定方法、データ識別方法、及びデータ信号再生方法
AU1950501A (en) * 1999-12-13 2001-06-18 Adc Telecommunications, Incorporated Monitored redundant switch apparatus and method
GB2372892A (en) * 2001-02-28 2002-09-04 Ntl Group Ltd Adaptive fault detection and localisation in television distribution networks using digital signal processing

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974286A (en) * 1952-09-27 1961-03-07 Lab For Electronics Inc Channel selector
US3790881A (en) * 1973-03-06 1974-02-05 Us Army Pulse width selector
US3869564A (en) * 1973-08-30 1975-03-04 American Electronic Lab Trunk switching system
JPS5248416A (en) * 1975-07-23 1977-04-18 Johnson Controls Inc Data communication system
US3980960A (en) * 1975-10-09 1976-09-14 Computer Identics Corporation Signal width and width ratio determining apparatus
FR2337471A1 (fr) * 1975-12-30 1977-07-29 Locatel Installation de production et de distribution d'un programme de television continu a partir de plusieurs sources video
JPS5399718A (en) * 1977-02-10 1978-08-31 Nec Corp Signal state detector circuit
US4254496A (en) * 1979-06-28 1981-03-03 Northern Telecom Limited Digital communication bus system
JPS57157661A (en) * 1981-03-25 1982-09-29 Hitachi Ltd Transmission line switching system
JPS587986A (ja) * 1981-07-08 1983-01-17 Fujitsu General Ltd Ｖｔｒ切換回路
JPS6038950A (ja) * 1983-08-11 1985-02-28 Sumitomo Electric Ind Ltd 伝送路制御方式
US4639618A (en) * 1983-09-26 1987-01-27 Pace, Incorporated Spike detector circuitry
US4627045A (en) * 1984-02-14 1986-12-02 Rosemount Inc. Alternating communication channel switchover system

Also Published As

Publication number Publication date
EP0240999A3 (en) 1990-04-25
JPS62243482A (ja) 1987-10-23
DE3789156T2 (de) 1994-09-29
DK171287D0 (da) 1987-04-03
EP0240999A2 (en) 1987-10-14
US4752927A (en) 1988-06-21
DE3789156D1 (de) 1994-04-07
CA1303211C (en) 1992-06-09
EP0240999B1 (en) 1994-03-02
JPH088662B2 (ja) 1996-01-29

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment
B1 Patent granted (law 1993)
PBP Patent lapsed