AU529953B2 - Correcting video disc playback response - Google Patents

Correcting video disc playback response

Info

Publication number
AU529953B2
AU529953B2 AU53700/79A AU5370079A AU529953B2 AU 529953 B2 AU529953 B2 AU 529953B2 AU 53700/79 A AU53700/79 A AU 53700/79A AU 5370079 A AU5370079 A AU 5370079A AU 529953 B2 AU529953 B2 AU 529953B2
Authority
AU
Australia
Prior art keywords
video disc
disc playback
correcting video
playback response
response
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
AU53700/79A
Other versions
AU5370079A (en
Inventor
Ludwig Ceshkovsky
Wayne Ray Dakin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discovision Associates
Original Assignee
Discovision Associates
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 Discovision Associates filed Critical Discovision Associates
Publication of AU5370079A publication Critical patent/AU5370079A/en
Application granted granted Critical
Publication of AU529953B2 publication Critical patent/AU529953B2/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

Links

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
    • H04N9/793—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits
    • H04N9/7933—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits the level control being frequency-dependent
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
AU53700/79A 1979-01-25 1979-12-11 Correcting video disc playback response Expired AU529953B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7900584A NL7900584A (en) 1979-01-25 1979-01-25 Video disc record pick=up for spectral range response correction - has laser beam optical system with prismatic beam splitter to divert light to photodetector connected to amplifier control circuit

Publications (2)

Publication Number Publication Date
AU5370079A AU5370079A (en) 1981-06-18
AU529953B2 true AU529953B2 (en) 1983-06-30

Family

ID=19832518

Family Applications (1)

Application Number Title Priority Date Filing Date
AU53700/79A Expired AU529953B2 (en) 1979-01-25 1979-12-11 Correcting video disc playback response

Country Status (2)

Country Link
AU (1) AU529953B2 (en)
NL (1) NL7900584A (en)

Also Published As

Publication number Publication date
AU5370079A (en) 1981-06-18
NL7900584A (en) 1980-07-29

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired