DK428876A - Fremgangsmade og behandlingsapparat til reduktion af interferens mellem frekvensmodulerede signaler - Google Patents

Fremgangsmade og behandlingsapparat til reduktion af interferens mellem frekvensmodulerede signaler

Info

Publication number: DK428876A
Authority: DK; Denmark
Prior art keywords: procedure; treatment device; modulated signals; frequency modulated; reducing interference
Prior art date: 1975-09-24

Application number

DK428876A

Other languages

English (en)

Inventor

F A Griffiths

Original Assignee

Decca Ltd

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.)

1975-09-24

Filing date

1976-09-23

Publication date

1977-03-25

1976-09-23 Application filed by Decca Ltd filed Critical Decca Ltd

1977-03-25 Publication of DK428876A publication Critical patent/DK428876A/da

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
- H04N9/7912—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being intermodulation signals
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/802—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving processing of the sound signal

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Noise Elimination (AREA)
Television Signal Processing For Recording (AREA)
Television Systems (AREA)

DK428876A 1975-09-24 1976-09-23 Fremgangsmade og behandlingsapparat til reduktion af interferens mellem frekvensmodulerede signaler DK428876A (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB39195/75A GB1514556A (en)	1975-09-24	1975-09-24	Signal processor for reducing interference between frequency-modulated signals

Publications (1)

Publication Number	Publication Date
DK428876A true DK428876A (da)	1977-03-25

Family

ID=10408217

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK428876A DK428876A (da)	1975-09-24	1976-09-23	Fremgangsmade og behandlingsapparat til reduktion af interferens mellem frekvensmodulerede signaler

Country Status (16)

Country	Link
US (1)	US4051533A (da)
JP (1)	JPS5240017A (da)
AT (1)	AT347518B (da)
AU (1)	AU497794B2 (da)
BE (1)	BE846448A (da)
CA (1)	CA1079810A (da)
CH (1)	CH595020A5 (da)
DE (1)	DE2642857C3 (da)
DK (1)	DK428876A (da)
FR (1)	FR2326095A1 (da)
GB (1)	GB1514556A (da)
IT (1)	IT1125212B (da)
NL (1)	NL7610195A (da)
NO (1)	NO763254L (da)
NZ (1)	NZ182006A (da)
SE (1)	SE415513B (da)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1159851B (it) *	1978-06-20	1987-03-04	Cselt Centro Studi Lab Telecom	Perfezionamenti ai sistemi di trasmissione a divisione di lunghezza d'onda
US4322746A (en) *	1978-10-06	1982-03-30	Hitachi, Ltd.	Crosstalk attenuator system
US4441090A (en) *	1979-12-19	1984-04-03	Rca Corporation	Crosstalk filtering arrangement with variable frequency filtering to remove effects of FM carrier
US4335394A (en) *	1979-12-19	1982-06-15	Rca Corporation	Crosstalk filtering arrangement with variable frequency filtering to remove effects of FM carrier
US4309722A (en) *	1980-05-27	1982-01-05	Rca Corporation	Video disc player noise reduction circuit
US4360829A (en) *	1980-06-24	1982-11-23	Rca Corporation	Active distortion elimination circuitry for a video disc player
US4329712A (en) *	1980-06-24	1982-05-11	Rca Corporation	Adaptive distortion elimination circuitry for a video disc player
JPS62133878A (ja) *	1985-12-05	1987-06-17	Sony Corp	映像信号記録装置
US4743980A (en) *	1986-01-13	1988-05-10	Optical Disc Corporation	Audio carrier amplitude control for videodisc recorder
JPH0196868A (ja) *	1987-10-08	1989-04-14	Pioneer Electron Corp	記録情報再生装置
US5093725A (en) *	1990-06-22	1992-03-03	At&T Bell Laboratories	Dynamic signal modification for achieving interference reduction in concurrently transmitted signals
KR20150072987A (ko) *	2013-12-20	2015-06-30	삼성전자주식회사	오디오 출력 환경에서의 노이즈 저감 방법 및 이를 지원하는 전자 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3371154A (en) *	1963-12-26	1968-02-27	Minnesota Mining & Mfg	Audio-video disk recording system with crosstalk prevention
NL6602675A (da) *	1966-03-02	1967-09-04
US3548085A (en) *	1967-03-13	1970-12-15	Sony Corp	Color television transmission systems for elimination of cross modulation
DE2133130B2 (de) *	1971-07-03	1973-12-06	Ted Bildplatten Ag Aeg-Telefunkenteldec, Zug (Schweiz)	System zur gleichzeitigen Wie dergabe zweier unabhängiger Signal verlaufe
DE2219528C2 (de) *	1972-04-21	1974-04-04	Ted Bildplatten Ag, Aeg-Telefunken Teldec, Zug (Schweiz)	System zum Aufzeichnen eines Videosignals und eines Tonsignals auf derselben Spur eines Aufzeichnungsträgers, insbesondere einer Bildplatte

1975
- 1975-09-24 GB GB39195/75A patent/GB1514556A/en not_active Expired
1976
- 1976-09-10 NZ NZ182006A patent/NZ182006A/xx unknown
- 1976-09-13 CA CA261,043A patent/CA1079810A/en not_active Expired
- 1976-09-14 NL NL7610195A patent/NL7610195A/xx not_active Application Discontinuation
- 1976-09-20 FR FR7628173A patent/FR2326095A1/fr not_active Withdrawn
- 1976-09-21 US US05/725,281 patent/US4051533A/en not_active Expired - Lifetime
- 1976-09-22 JP JP51114321A patent/JPS5240017A/ja active Pending
- 1976-09-22 BE BE170826A patent/BE846448A/xx unknown
- 1976-09-22 NO NO763254A patent/NO763254L/no unknown
- 1976-09-23 AT AT705676A patent/AT347518B/de not_active IP Right Cessation
- 1976-09-23 SE SE7610533A patent/SE415513B/xx unknown
- 1976-09-23 DE DE2642857A patent/DE2642857C3/de not_active Expired
- 1976-09-23 DK DK428876A patent/DK428876A/da unknown
- 1976-09-23 AU AU18088/76A patent/AU497794B2/en not_active Expired
- 1976-09-23 CH CH1207876A patent/CH595020A5/xx not_active IP Right Cessation
- 1976-09-24 IT IT69299/76A patent/IT1125212B/it active

Also Published As

Publication number	Publication date
AT347518B (de)	1978-12-27
ATA705676A (de)	1978-05-15
DE2642857A1 (de)	1977-04-07
IT1125212B (it)	1986-05-14
US4051533A (en)	1977-09-27
DE2642857C3 (de)	1980-02-14
BE846448A (fr)	1977-01-17
JPS5240017A (en)	1977-03-28
FR2326095A1 (fr)	1977-04-22
AU1808876A (en)	1978-04-06
SE415513B (sv)	1980-10-06
CA1079810A (en)	1980-06-17
CH595020A5 (da)	1978-01-31
NL7610195A (nl)	1977-03-28
GB1514556A (en)	1978-06-14
DE2642857B2 (de)	1979-06-07
AU497794B2 (en)	1979-01-11
SE7610533L (sv)	1977-03-25
NZ182006A (en)	1980-10-24
NO763254L (no)	1977-03-25

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