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 system

Info

Publication number: HK41395A
Authority: HK; Hong Kong
Prior art keywords: circuitry; automatic; phase error; demodulation phase; reducing demodulation
Prior art date: 1986-05-29

Application number

HK41395A

Inventor

Edward Richard Campbell Iii

Henry Garton Lewis Jr

Original Assignee

Rca Licensing Corp

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.)

1986-05-29

Filing date

1995-03-23

Publication date

1995-03-31

1986-05-29 Priority claimed from US06/868,113 external-priority patent/US4686569A/en

1986-06-25 Priority claimed from US06/878,260 external-priority patent/US4688096A/en

1995-03-23 Application filed by Rca Licensing Corp filed Critical Rca Licensing Corp

1995-03-31 Publication of HK41395A publication Critical patent/HK41395A/en

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)

HK41395A 1986-05-29 1995-03-23 Circuitry for reducing demodulation phase error as for an automatic deghosting system HK41395A (en)

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 (en)
KR (1)	KR950004103B1 (en)
DE (1)	DE3718103A1 (en)
FR (1)	FR2599574B1 (en)
GB (1)	GB2191367B (en)
HK (1)	HK41395A (en)
SG (1)	SG28693G (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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 (en)	1994-07-29	1996-02-08	Siemens Ag	Circuit arrangement for intermediate frequency demodulation
KR100311522B1 (en) *	1999-07-31	2001-10-18	서평원	Distortion Signal Compensation Method and Device in Digital TV

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5199922A (en) *	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 (en) *	1976-12-24	1984-10-15	ソニー株式会社	signal control circuit
GB1595636A (en) *	1977-07-22	1981-08-12	Mitsubishi Electric Corp	Apparatus for reducing ghosting of tv pictures
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/en not_active Expired - Fee Related
- 1987-05-27 JP JP62131039A patent/JP2627270B2/en not_active Expired - Fee Related
- 1987-05-28 KR KR1019870005316A patent/KR950004103B1/en not_active IP Right Cessation
- 1987-05-29 DE DE19873718103 patent/DE3718103A1/en active Granted
1993
- 1993-03-18 SG SG286/93A patent/SG28693G/en unknown
1995
- 1995-03-23 HK HK41395A patent/HK41395A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
GB8712044D0 (en)	1987-06-24
GB2191367A (en)	1987-12-09
FR2599574B1 (en)	1990-08-31
KR950004103B1 (en)	1995-04-25
FR2599574A1 (en)	1987-12-04
GB2191367B (en)	1990-04-11
JPS62287781A (en)	1987-12-14
SG28693G (en)	1993-05-21
DE3718103C2 (en)	1989-09-07
DE3718103A1 (en)	1987-12-03
JP2627270B2 (en)	1997-07-02
KR870011796A (en)	1987-12-26

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Legal Events

Date	Code	Title	Description
2004-12-15	PF	Patent in force
2005-12-30	PC	Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)	Effective date: 20050521