GB1496449A - Method and device for modulating an energy beam - Google Patents

Method and device for modulating an energy beam

Info

Publication number
GB1496449A
GB1496449A GB14901/75A GB1490175A GB1496449A GB 1496449 A GB1496449 A GB 1496449A GB 14901/75 A GB14901/75 A GB 14901/75A GB 1490175 A GB1490175 A GB 1490175A GB 1496449 A GB1496449 A GB 1496449A
Authority
GB
United Kingdom
Prior art keywords
signal
carrier
duty ratio
modulation
modulating
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
GB14901/75A
Other languages
English (en)
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1496449A publication Critical patent/GB1496449A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/7605—Television signal recording on discs or drums
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Television Signal Processing For Recording (AREA)
GB14901/75A 1974-04-13 1975-04-11 Method and device for modulating an energy beam Expired GB1496449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2418175A DE2418175C2 (de) 1974-04-13 1974-04-13 Schaltungsanordnung zur Modulation eines Energiestrahls

Publications (1)

Publication Number Publication Date
GB1496449A true GB1496449A (en) 1977-12-30

Family

ID=5912973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14901/75A Expired GB1496449A (en) 1974-04-13 1975-04-11 Method and device for modulating an energy beam

Country Status (8)

Country Link
US (1) US3978279A (enExample)
JP (1) JPS50139619A (enExample)
CH (1) CH589990A5 (enExample)
DE (1) DE2418175C2 (enExample)
FR (1) FR2267673B1 (enExample)
GB (1) GB1496449A (enExample)
IT (1) IT1037224B (enExample)
NL (1) NL7504346A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416002A (en) * 1978-04-10 1983-11-15 Hitachi, Ltd. Method and apparatus for high-density recording and reproduction
US4480270A (en) * 1981-10-28 1984-10-30 Discovision Associates Audio/video signal recording method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2133130B2 (de) * 1971-07-03 1973-12-06 Ted Bildplatten Ag Aeg-Telefunkenteldec, Zug (Schweiz) System zur gleichzeitigen Wie dergabe zweier unabhängiger Signal verlaufe
US3829605A (en) * 1971-07-20 1974-08-13 Ted Bildplatten Carrier and method for recording a signal thereon
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
NL177168C (nl) * 1972-09-02 1985-08-01 Philips Nv Werkwijze voor het registreren van een videosignaal en registratiedrager voorzien van videoinformatie opgetekend volgens de werkwijze alsmede een inrichting voor het uitlezen van een registratiedrager.
GB1460911A (en) * 1973-03-20 1977-01-06 Rca Corp Colour picture and sound record and recording/playback apparatus and methods therefor

Also Published As

Publication number Publication date
FR2267673B1 (enExample) 1978-09-01
US3978279A (en) 1976-08-31
FR2267673A1 (enExample) 1975-11-07
NL7504346A (nl) 1975-10-15
DE2418175A1 (de) 1975-11-06
JPS50139619A (enExample) 1975-11-08
CH589990A5 (enExample) 1977-07-29
IT1037224B (it) 1979-11-10
DE2418175C2 (de) 1983-01-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee