ATE69129T1 - Modulator mit einem kammfilter. - Google Patents

Modulator mit einem kammfilter.

Info

Publication number
ATE69129T1
ATE69129T1 AT88200143T AT88200143T ATE69129T1 AT E69129 T1 ATE69129 T1 AT E69129T1 AT 88200143 T AT88200143 T AT 88200143T AT 88200143 T AT88200143 T AT 88200143T AT E69129 T1 ATE69129 T1 AT E69129T1
Authority
AT
Austria
Prior art keywords
modulator
comb filter
mhz
approximately
operating
Prior art date
Application number
AT88200143T
Other languages
English (en)
Inventor
Franciscus Herman Maria Bergen
Original Assignee
Philips Nv
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.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of ATE69129T1 publication Critical patent/ATE69129T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • 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
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/83—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Processing Of Color Television Signals (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Networks Using Active Elements (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
AT88200143T 1987-02-02 1988-01-28 Modulator mit einem kammfilter. ATE69129T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8700244A NL8700244A (nl) 1987-02-02 1987-02-02 Modulator met een kamfilter.
EP88200143A EP0279478B1 (de) 1987-02-02 1988-01-28 Modulator mit einem Kammfilter

Publications (1)

Publication Number Publication Date
ATE69129T1 true ATE69129T1 (de) 1991-11-15

Family

ID=19849503

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88200143T ATE69129T1 (de) 1987-02-02 1988-01-28 Modulator mit einem kammfilter.

Country Status (7)

Country Link
US (1) US4816780A (de)
EP (1) EP0279478B1 (de)
JP (1) JP2703247B2 (de)
KR (1) KR960009967B1 (de)
AT (1) ATE69129T1 (de)
DE (1) DE3865855D1 (de)
NL (1) NL8700244A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3323611B2 (ja) * 1993-06-25 2002-09-09 株式会社日立製作所 Ｖｔｒ用周波数変換装置
DE19523433C2 (de) * 1995-06-28 1998-04-23 Telefunken Microelectron Schaltungsanordnung zur Frequenzumsetzung
DE19523432A1 (de) * 1995-06-28 1997-01-02 Telefunken Microelectron Schaltungsanordnung zur Frequenzumsetzung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996606A (en) * 1975-03-18 1976-12-07 Rca Corporation Comb filter for video processing
US3996610A (en) * 1975-12-29 1976-12-07 Rca Corporation Comb filter apparatus for video playback systems
NL175575C (nl) * 1976-05-28 1984-11-16 Philips Nv Filter- en demodulatie-inrichting.
JPS57124987A (en) * 1981-01-26 1982-08-04 Matsushita Electric Ind Co Ltd Processor for pal color video signal
JPS57141193A (en) * 1982-01-18 1982-09-01 Sony Corp Regenerating device for color television signal of pal system
US4754340A (en) * 1983-11-01 1988-06-28 Matsushita Electric Industrial Co., Ltd. Method of reproducing a chrominance signal from a previously low-range-converted chrominance signal using comb filtering and sampling

Also Published As

Publication number Publication date
JPS6464487A (en) 1989-03-10
EP0279478A1 (de) 1988-08-24
US4816780A (en) 1989-03-28
NL8700244A (nl) 1988-09-01
DE3865855D1 (de) 1991-12-05
KR880010558A (ko) 1988-10-10
EP0279478B1 (de) 1991-10-30
KR960009967B1 (ko) 1996-07-25
JP2703247B2 (ja) 1998-01-26

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties