GB290298A - Improvements relating to the synchronization of electrical devices - Google Patents

Improvements relating to the synchronization of electrical devices

Info

Publication number
GB290298A
GB290298A GB13951/28A GB1395128A GB290298A GB 290298 A GB290298 A GB 290298A GB 13951/28 A GB13951/28 A GB 13951/28A GB 1395128 A GB1395128 A GB 1395128A GB 290298 A GB290298 A GB 290298A
Authority
GB
United Kingdom
Prior art keywords
synchronization
electrical devices
improvements relating
grids
electric device
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
GB13951/28A
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 GB290298A publication Critical patent/GB290298A/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)
  • Electrotherapy Devices (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Transmitters (AREA)

Abstract

290,298. British Thomson-Houston Co., Ltd., (Alexanderson. E. F. W.). May 13, 1927, [Convention date]. Synchronous movements. - A transmitting apparatus radiates energy modulated at the operating frequency and in the receiving apparatus, Fig. 2, current at the modulating frequency is delivered from a vapour electric device 9 to energize a synchonous machine 18. The received modulating frequency is impressed on grids 10 of the vapour electric device by a transformer 11 connected between the grids and cathode 13.
GB13951/28A 1927-05-13 1928-05-11 Improvements relating to the synchronization of electrical devices Expired GB290298A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB290298A true GB290298A (en) 1928-07-26

Family

ID=21846846

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27777/27A Expired GB279457A (en) 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 Before (1)

Application Number Title Priority Date Filing Date
GB27777/27A Expired GB279457A (en) 1927-05-13 1927-10-19

Country Status (5)

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

Cited By (2)

* 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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219850A (en) * 1978-02-16 1980-08-26 The Mead Corporation Optical encoder

Cited By (2)

* 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

Also Published As

Publication number Publication date
US1694301A (en) 1928-12-04
GB279457A (en) 1928-08-09
FR40242E (en) 1932-06-07
FR35520E (en) 1930-03-22
NL24807C (en)
DE477444C (en) 1929-06-07
FR642847A (en) 1928-09-05
DE510214C (en) 1930-10-17

Similar Documents

Publication Publication Date Title
GB579972A (en) Secrecy communication system
GB574674A (en) Radio communicating system
GB290298A (en) Improvements relating to the synchronization of electrical devices
GB433286A (en) System for emitting and transmitting electrical waves
GB616871A (en) Improvements in or relating to electron discharge devices
GB398498A (en) Improvements in and relating to electric power converting apparatus
GB259234A (en) Improvements in electric remote control systems
GB359788A (en) Improvements in or relating to apparatus for eliminating disturbing oscillations in wireless receiving and transmitting apparatus
GB509931A (en) Improvements in and relating to remote electric control systems
GB296516A (en) Improvements in or relating to high frequency electrical apparatus of the type employing multiple electrode vacuum electric discharge devices
ES409649A1 (en) Flyback eht and sawtooth current generator
GB291406A (en) Improvements relating to voltage limiting arrangements
GB623060A (en) Improvements in or relating to circuits for generating phase-modulated oscillations
GB510792A (en) Improvements in or relating to electrical signalling systems
GB331240A (en) Arrangement for supplying current to radiophonic receivers
GB456222A (en) Improvements in and relating to electric transmission and distribution systems
GB287171A (en) Improvements in and relating to electron tube installations, particularly wireless transmitters
GB261826A (en) Improvements in or relating to electric protective systems
GB360343A (en) Improvements in and relating to the transmission of electrical energy between alternating and direct current networks
GB308337A (en) Improvements in or relating to thermionic and the like amplifiers
GB472283A (en) Improvements in and relating to make and break contact apparatus
GB460187A (en) Improvements in or relating to electrical signalling systems
GB326222A (en) Improvements in or relating to radio and the like telegraph transmitters
GB262085A (en) Improvements in and relating to systems of electric transmission
GB684495A (en) Improvements in and relating to high frequency electric heating apparatus