FR2615680B1 - Circuit de rejection de signal a dispersion d'energie et son procede de fonctionnement - Google Patents
Circuit de rejection de signal a dispersion d'energie et son procede de fonctionnementInfo
- Publication number
- FR2615680B1 FR2615680B1 FR8806816A FR8806816A FR2615680B1 FR 2615680 B1 FR2615680 B1 FR 2615680B1 FR 8806816 A FR8806816 A FR 8806816A FR 8806816 A FR8806816 A FR 8806816A FR 2615680 B1 FR2615680 B1 FR 2615680B1
- Authority
- FR
- France
- Prior art keywords
- operating method
- energy dispersion
- rejection circuit
- signal rejection
- dispersion signal
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
- H04N7/045—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier the carrier being frequency modulated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Picture Signal Circuits (AREA)
- Noise Elimination (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62126545A JPS63292790A (ja) | 1987-05-23 | 1987-05-23 | デイスパ−サル信号除去回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2615680A1 FR2615680A1 (fr) | 1988-11-25 |
FR2615680B1 true FR2615680B1 (fr) | 1994-02-25 |
Family
ID=14937833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8806816A Expired - Fee Related FR2615680B1 (fr) | 1987-05-23 | 1988-05-20 | Circuit de rejection de signal a dispersion d'energie et son procede de fonctionnement |
Country Status (9)
Country | Link |
---|---|
US (1) | US4953179A (fr) |
JP (1) | JPS63292790A (fr) |
KR (1) | KR880014825A (fr) |
AU (1) | AU613912B2 (fr) |
CA (1) | CA1303139C (fr) |
DE (1) | DE3817367A1 (fr) |
FR (1) | FR2615680B1 (fr) |
GB (1) | GB2205717B (fr) |
NL (1) | NL8801288A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0431875A3 (en) * | 1989-12-04 | 1992-02-26 | Matsushita Electric Industrial Co., Ltd. | Energy dispersal signal adding apparatus and energy dispersal signal removing apparatus |
JPH04261291A (ja) * | 1991-02-15 | 1992-09-17 | Victor Co Of Japan Ltd | エネルギー拡散信号除去装置 |
CA2071283C (fr) * | 1991-06-18 | 1999-07-27 | Shigeru Kawakami | Recepteur de television par satellite |
GB9120950D0 (en) * | 1991-10-02 | 1991-11-13 | Philips Electronic Associated | Signal clamping |
US6999779B1 (en) | 1997-02-06 | 2006-02-14 | Fujitsu Limited | Position information management system |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3044062A (en) * | 1960-04-27 | 1962-07-10 | Katzin Martin | Polarization diversity receiver |
NL6702874A (fr) * | 1966-08-27 | 1968-08-26 | ||
US3729576A (en) * | 1971-02-08 | 1973-04-24 | Optical Sys Corp | Encoding and decoding system for catv |
US4074311A (en) * | 1976-06-18 | 1978-02-14 | Tanner Electronic Systems | Television security system |
US4222066A (en) * | 1977-12-22 | 1980-09-09 | North American Philips Corporation | CATV Subscription service control device and attenuator therefor |
US4455651A (en) * | 1980-10-20 | 1984-06-19 | Equatorial Communications Company | Satellite communications system and apparatus |
JPS58178670A (ja) * | 1982-04-12 | 1983-10-19 | Alps Electric Co Ltd | ビデオ・クランプ回路 |
CA1186028A (fr) * | 1982-06-23 | 1985-04-23 | Microdesign Limited | Methode et appareil de brouillage et de debrouillage de flux de donnees par chiffrage et dechiffrage |
US4475214A (en) * | 1982-10-12 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Army | CW Interference cancelling sytem for spread spectrum signals utilizing active coherent detection |
FR2552607B1 (fr) * | 1983-09-22 | 1985-10-25 | Fernandez Enrique | Procede de brouillage d'un signal de television et appareil de debrouillage correspondant |
JPS60132430A (ja) * | 1983-12-21 | 1985-07-15 | Toshiba Corp | 妨害波除去装置 |
CA1252560A (fr) * | 1984-01-27 | 1989-04-11 | Frank T. Meriwether | Methode et systeme de brouillage de signaux |
US4790009A (en) * | 1984-10-29 | 1988-12-06 | Victor Company Of Japan, Ltd. | Scrambler system |
CA1235751A (fr) * | 1985-01-09 | 1988-04-26 | Junji Namiki | Repeteur monofrequence pour systeme radio numerique a micro-ondes avec annulation du signal parasite transmis de l'emetteur au recepteur |
GB2174575B (en) * | 1985-04-29 | 1989-06-28 | Plessey Co Plc | Improvements in or relating to receivers |
GB2174576B (en) * | 1985-04-29 | 1989-06-28 | Plessey Co Plc | Improvements in or relating to receivers |
JPS6276878A (ja) * | 1985-09-30 | 1987-04-08 | Toshiba Corp | 映像スクランブル信号処理装置 |
US4688246A (en) * | 1985-12-20 | 1987-08-18 | Zenith Electronics Corporation | CATV scrambling system with compressed digital audio in synchronizing signal intervals |
US4736455A (en) * | 1985-12-23 | 1988-04-05 | Nippon Telegraph And Telephone Corporation | Interference cancellation system |
-
1987
- 1987-05-23 JP JP62126545A patent/JPS63292790A/ja active Pending
-
1988
- 1988-05-04 AU AU15571/88A patent/AU613912B2/en not_active Ceased
- 1988-05-10 US US07/192,687 patent/US4953179A/en not_active Expired - Fee Related
- 1988-05-12 GB GB8811231A patent/GB2205717B/en not_active Expired - Lifetime
- 1988-05-12 KR KR1019880005489A patent/KR880014825A/ko not_active Application Discontinuation
- 1988-05-12 CA CA000566626A patent/CA1303139C/fr not_active Expired - Lifetime
- 1988-05-18 NL NL8801288A patent/NL8801288A/nl not_active Application Discontinuation
- 1988-05-20 FR FR8806816A patent/FR2615680B1/fr not_active Expired - Fee Related
- 1988-05-20 DE DE3817367A patent/DE3817367A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2205717A (en) | 1988-12-14 |
JPS63292790A (ja) | 1988-11-30 |
FR2615680A1 (fr) | 1988-11-25 |
NL8801288A (nl) | 1988-12-16 |
US4953179A (en) | 1990-08-28 |
KR880014825A (ko) | 1988-12-24 |
AU613912B2 (en) | 1991-08-15 |
AU1557188A (en) | 1988-11-24 |
GB8811231D0 (en) | 1988-06-15 |
GB2205717B (en) | 1991-06-19 |
DE3817367A1 (de) | 1988-12-01 |
CA1303139C (fr) | 1992-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse |