DK171287A - Indretning til synkron omskiftning - Google Patents
Indretning til synkron omskiftningInfo
- 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
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)
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 (ja) |
EP (1) | EP0240999B1 (ja) |
JP (1) | JPH088662B2 (ja) |
CA (1) | CA1303211C (ja) |
DE (1) | DE3789156T2 (ja) |
DK (1) | DK171287A (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
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)
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 |
-
1986
- 1986-04-09 US US06/850,000 patent/US4752927A/en not_active Expired - Lifetime
-
1987
- 1987-03-16 CA CA000532139A patent/CA1303211C/en not_active Expired - Fee Related
- 1987-04-03 DK DK171287A patent/DK171287A/da not_active IP Right Cessation
- 1987-04-07 EP EP87105150A patent/EP0240999B1/en not_active Expired - Lifetime
- 1987-04-07 DE DE3789156T patent/DE3789156T2/de not_active Expired - Fee Related
- 1987-04-09 JP JP62087866A patent/JPH088662B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0240999B1 (en) | 1994-03-02 |
US4752927A (en) | 1988-06-21 |
DE3789156T2 (de) | 1994-09-29 |
JPS62243482A (ja) | 1987-10-23 |
DE3789156D1 (de) | 1994-04-07 |
DK171287D0 (da) | 1987-04-03 |
EP0240999A3 (en) | 1990-04-25 |
EP0240999A2 (en) | 1987-10-14 |
CA1303211C (en) | 1992-06-09 |
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 |