HK41395A - Circuitry for reducing demodulation phase error as for an automatic deghosting system - Google Patents
Circuitry for reducing demodulation phase error as for an automatic deghosting systemInfo
- Publication number
- HK41395A HK41395A HK41395A HK41395A HK41395A HK 41395 A HK41395 A HK 41395A HK 41395 A HK41395 A HK 41395A HK 41395 A HK41395 A HK 41395A HK 41395 A HK41395 A HK 41395A
- Authority
- HK
- Hong Kong
- Prior art keywords
- circuitry
- automatic
- phase error
- demodulation phase
- reducing demodulation
- Prior art date
Links
Classifications
-
- 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
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/455—Demodulation-circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
- H03D3/009—Compensating quadrature phase or amplitude imbalances
-
- 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
- H04N5/211—Ghost signal cancellation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/868,113 US4686569A (en) | 1986-05-29 | 1986-05-29 | Circuitry for reducing demodulation phase error as for an automatic deghosting system |
US06/878,260 US4688096A (en) | 1986-06-25 | 1986-06-25 | Demodulation phase error compensation circuitry as for an automatic deghosting system |
Publications (1)
Publication Number | Publication Date |
---|---|
HK41395A true HK41395A (en) | 1995-03-31 |
Family
ID=27128036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK41395A HK41395A (en) | 1986-05-29 | 1995-03-23 | Circuitry for reducing demodulation phase error as for an automatic deghosting system |
Country Status (7)
Country | Link |
---|---|
JP (1) | JP2627270B2 (xx) |
KR (1) | KR950004103B1 (xx) |
DE (1) | DE3718103A1 (xx) |
FR (1) | FR2599574B1 (xx) |
GB (1) | GB2191367B (xx) |
HK (1) | HK41395A (xx) |
SG (1) | SG28693G (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2287144B (en) * | 1994-02-23 | 1998-11-18 | Motorola Israel Ltd | A radio device and a single-frequency radio transponder |
DE4427018A1 (de) * | 1994-07-29 | 1996-02-08 | Siemens Ag | Schaltungsanordnung zur Zwischenfrequenzdemodulation |
KR100311522B1 (ko) * | 1999-07-31 | 2001-10-18 | 서평원 | 디지털 티브이 중계기에서의 왜곡 신호 보상 방법 및 장치 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5199922A (xx) * | 1975-02-28 | 1976-09-03 | Matsushita Electric Ind Co Ltd | |
JPS535559A (en) * | 1976-07-05 | 1978-01-19 | Nec Corp | Synchronous demodulation system |
JPS5942518B2 (ja) * | 1976-12-24 | 1984-10-15 | ソニー株式会社 | 信号制御回路 |
FR2398423A1 (fr) * | 1977-07-22 | 1979-02-16 | Mitsubishi Electric Corp | Circuit d'annulation d'ondes fantomes |
JPS54150027A (en) * | 1978-05-18 | 1979-11-24 | Sony Corp | Television picture receiver |
US4374400A (en) * | 1981-06-16 | 1983-02-15 | Rca Corporation | Television ghost cancellation system with ghost carrier phase compensation |
US4703357A (en) * | 1985-12-24 | 1987-10-27 | Rca Corporation | Adaptive television deghosting system |
-
1987
- 1987-05-21 GB GB8712044A patent/GB2191367B/en not_active Expired - Fee Related
- 1987-05-27 FR FR878707518A patent/FR2599574B1/fr not_active Expired - Fee Related
- 1987-05-27 JP JP62131039A patent/JP2627270B2/ja not_active Expired - Fee Related
- 1987-05-28 KR KR1019870005316A patent/KR950004103B1/ko not_active IP Right Cessation
- 1987-05-29 DE DE19873718103 patent/DE3718103A1/de active Granted
-
1993
- 1993-03-18 SG SG286/93A patent/SG28693G/en unknown
-
1995
- 1995-03-23 HK HK41395A patent/HK41395A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3718103C2 (xx) | 1989-09-07 |
JP2627270B2 (ja) | 1997-07-02 |
KR870011796A (ko) | 1987-12-26 |
DE3718103A1 (de) | 1987-12-03 |
JPS62287781A (ja) | 1987-12-14 |
SG28693G (en) | 1993-05-21 |
FR2599574A1 (fr) | 1987-12-04 |
FR2599574B1 (fr) | 1990-08-31 |
GB8712044D0 (en) | 1987-06-24 |
KR950004103B1 (ko) | 1995-04-25 |
GB2191367A (en) | 1987-12-09 |
GB2191367B (en) | 1990-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PF | Patent in force | ||
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20050521 |