KR880014825A - 디스퍼설신호 제거회로 - Google Patents
디스퍼설신호 제거회로 Download PDFInfo
- Publication number
- KR880014825A KR880014825A KR1019880005489A KR880005489A KR880014825A KR 880014825 A KR880014825 A KR 880014825A KR 1019880005489 A KR1019880005489 A KR 1019880005489A KR 880005489 A KR880005489 A KR 880005489A KR 880014825 A KR880014825 A KR 880014825A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- cancellation circuit
- signal cancellation
- dispersal signal
- dispersal
- Prior art date
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)
- Noise Elimination (AREA)
- Picture Signal Circuits (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일실시예를 나타내는 디스퍼설신호 제거회로의 블럭도, 제2도는 본원 발명의 제거회로를 설치한 위성방송 수신장치의 블럭도, 제3도는 각부에서 출력되는 신호파형도.
Claims (1)
- 위성방송 수신기의 복조출력에 중첩되어 있는 디스퍼설신호에 동기하고, 또한 상기 디스퍼설신호와 역상(逆相) 또는 동상(同相)으로 대략 같은 진폭의 캔슬신호를 발생하는 캔슬신호 형성회로와, 상기 복조출력과 상기 캔슬신호를 가산 또는 감산 결합하므로써, 상기 복조출력중의 상기 디스퍼설신호를 제거하는 캔슬회로를 구비하는 디스퍼설신호 제거회로.※참고사항:최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP87-126,545 | 1987-05-23 | ||
JP62126545A JPS63292790A (ja) | 1987-05-23 | 1987-05-23 | デイスパ−サル信号除去回路 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR880014825A true KR880014825A (ko) | 1988-12-24 |
Family
ID=14937833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880005489A KR880014825A (ko) | 1987-05-23 | 1988-05-12 | 디스퍼설신호 제거회로 |
Country Status (9)
Country | Link |
---|---|
US (1) | US4953179A (ko) |
JP (1) | JPS63292790A (ko) |
KR (1) | KR880014825A (ko) |
AU (1) | AU613912B2 (ko) |
CA (1) | CA1303139C (ko) |
DE (1) | DE3817367A1 (ko) |
FR (1) | FR2615680B1 (ko) |
GB (1) | GB2205717B (ko) |
NL (1) | NL8801288A (ko) |
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 (en) * | 1991-06-18 | 1999-07-27 | Shigeru Kawakami | Satellite television broadcasting receiver |
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 (ko) * | 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 (en) * | 1982-06-23 | 1985-04-23 | Microdesign Limited | Method and apparatus for scrambling and unscrambling data streams using encryption and decryption |
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 (en) * | 1984-01-27 | 1989-04-11 | Frank T. Meriwether | Method and system for scrambling information signals |
US4790009A (en) * | 1984-10-29 | 1988-12-06 | Victor Company Of Japan, Ltd. | Scrambler system |
CA1235751A (en) * | 1985-01-09 | 1988-04-26 | Junji Namiki | One frequency repeater for a digital microwave radio system with cancellation of transmitter-to-receiver interference |
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/en not_active Expired - Lifetime
- 1988-05-18 NL NL8801288A patent/NL8801288A/nl not_active Application Discontinuation
- 1988-05-20 DE DE3817367A patent/DE3817367A1/de not_active Withdrawn
- 1988-05-20 FR FR8806816A patent/FR2615680B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU1557188A (en) | 1988-11-24 |
US4953179A (en) | 1990-08-28 |
AU613912B2 (en) | 1991-08-15 |
FR2615680B1 (fr) | 1994-02-25 |
GB2205717A (en) | 1988-12-14 |
GB2205717B (en) | 1991-06-19 |
JPS63292790A (ja) | 1988-11-30 |
CA1303139C (en) | 1992-06-09 |
NL8801288A (nl) | 1988-12-16 |
FR2615680A1 (fr) | 1988-11-25 |
GB8811231D0 (en) | 1988-06-15 |
DE3817367A1 (de) | 1988-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |