GB279457A - - Google Patents

Info

Publication number
GB279457A
GB279457A GB27777/27A GB2777727A GB279457A GB 279457 A GB279457 A GB 279457A GB 27777/27 A GB27777/27 A GB 27777/27A GB 2777727 A GB2777727 A GB 2777727A GB 279457 A GB279457 A GB 279457A
Authority
GB
United Kingdom
Prior art keywords
lenses
pencils
picture
pass
adjacent
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
GB27777/27A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB279457A publication Critical patent/GB279457A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/20—Prevention of damage to cathode-ray tubes in the event of failure of scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
    • H04N7/063—Simultaneous transmission of separate parts of one picture

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Transmitters (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Electrotherapy Devices (AREA)
GB27777/27A 1927-05-13 1927-10-19 Expired GB279457A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US290298XA 1927-05-13 1927-05-13

Publications (1)

Publication Number Publication Date
GB279457A true GB279457A (enExample) 1928-08-09

Family

ID=21846846

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27777/27A Expired GB279457A (enExample) 1927-05-13 1927-10-19
GB13951/28A Expired GB290298A (en) 1927-05-13 1928-05-11 Improvements relating to the synchronization of electrical devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB13951/28A Expired GB290298A (en) 1927-05-13 1928-05-11 Improvements relating to the synchronization of electrical devices

Country Status (5)

Country Link
US (1) US1694301A (enExample)
DE (2) DE510214C (enExample)
FR (3) FR642847A (enExample)
GB (2) GB279457A (enExample)
NL (1) NL24807C (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685056A (en) * 1949-08-31 1954-07-27 Faximile Inc Synchronizable vibrator-type inverter
US2737622A (en) * 1950-02-21 1956-03-06 Western Union Telegraph Co Synchronous power supply apparatus for facsimile systems
US4219850A (en) * 1978-02-16 1980-08-26 The Mead Corporation Optical encoder

Also Published As

Publication number Publication date
GB290298A (en) 1928-07-26
NL24807C (enExample)
DE477444C (de) 1929-06-07
US1694301A (en) 1928-12-04
DE510214C (de) 1930-10-17
FR40242E (fr) 1932-06-07
FR35520E (fr) 1930-03-22
FR642847A (fr) 1928-09-05

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