FR777704A - Improvements in television and image transmission accompanied by sounds - Google Patents

Improvements in television and image transmission accompanied by sounds

Info

Publication number
FR777704A
FR777704A FR777704DA FR777704A FR 777704 A FR777704 A FR 777704A FR 777704D A FR777704D A FR 777704DA FR 777704 A FR777704 A FR 777704A
Authority
FR
France
Prior art keywords
sounds
television
image transmission
transmission accompanied
accompanied
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
Other languages
French (fr)
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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.)
Filing date
Publication date
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR777704A publication Critical patent/FR777704A/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
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
FR777704D 1933-08-14 1934-08-14 Improvements in television and image transmission accompanied by sounds Expired FR777704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB777704X 1933-08-14

Publications (1)

Publication Number Publication Date
FR777704A true FR777704A (en) 1935-02-27

Family

ID=10497584

Family Applications (1)

Application Number Title Priority Date Filing Date
FR777704D Expired FR777704A (en) 1933-08-14 1934-08-14 Improvements in television and image transmission accompanied by sounds

Country Status (1)

Country Link
FR (1) FR777704A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887209C (en) * 1937-06-19 1953-08-20 Siemens Ag Optical control device with light valve for telegraph receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE887209C (en) * 1937-06-19 1953-08-20 Siemens Ag Optical control device with light valve for telegraph receiver

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