GB345964A - Improvements in or relating to synchronising devices for electric motors associated with television, telephotography, mechanical control from a distance, and like systems - Google Patents

Improvements in or relating to synchronising devices for electric motors associated with television, telephotography, mechanical control from a distance, and like systems

Info

Publication number
GB345964A
GB345964A GB39614/29A GB3961429A GB345964A GB 345964 A GB345964 A GB 345964A GB 39614/29 A GB39614/29 A GB 39614/29A GB 3961429 A GB3961429 A GB 3961429A GB 345964 A GB345964 A GB 345964A
Authority
GB
United Kingdom
Prior art keywords
television
systems
telephotography
relating
distance
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
GB39614/29A
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Publication of GB345964A publication Critical patent/GB345964A/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
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/123—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal directly commands a frequency generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
    • H02P5/51—Direct ratio control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
    • H03K4/023—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform by repetitive charge or discharge of a capacitor, analogue generators
    • 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
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • H04N5/067—Arrangements or circuits at the transmitter end
    • H04N5/073—Arrangements or circuits at the transmitter end for mutually locking plural sources of synchronising signals, e.g. studios or relay stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Lens Barrels (AREA)
  • Windings For Motors And Generators (AREA)
  • Valve Device For Special Equipments (AREA)
  • Stopping Of Electric Motors (AREA)
  • Retarders (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
GB39614/29A 1928-12-27 1929-12-27 Improvements in or relating to synchronising devices for electric motors associated with television, telephotography, mechanical control from a distance, and like systems Expired GB345964A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR681471T 1928-12-27
FR37719T 1929-07-02
FR700457T 1929-10-12

Publications (1)

Publication Number Publication Date
GB345964A true GB345964A (en) 1931-03-27

Family

ID=27245002

Family Applications (3)

Application Number Title Priority Date Filing Date
GB39614/29A Expired GB345964A (en) 1928-12-27 1929-12-27 Improvements in or relating to synchronising devices for electric motors associated with television, telephotography, mechanical control from a distance, and like systems
GB7548/30A Expired GB350443A (en) 1928-12-27 1930-03-07 Improvements in or relating to synchronisation devices for television, telephotography and like purposes
GB28738/30A Expired GB356506A (en) 1928-12-27 1930-09-25 Improvements in or relating to television, telecinematograph and like systems

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB7548/30A Expired GB350443A (en) 1928-12-27 1930-03-07 Improvements in or relating to synchronisation devices for television, telephotography and like purposes
GB28738/30A Expired GB356506A (en) 1928-12-27 1930-09-25 Improvements in or relating to television, telecinematograph and like systems

Country Status (3)

Country Link
BE (1) BE366193A (enrdf_load_stackoverflow)
FR (3) FR681471A (enrdf_load_stackoverflow)
GB (3) GB345964A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE407565A (enrdf_load_stackoverflow) * 1934-03-17

Also Published As

Publication number Publication date
FR700457A (fr) 1931-03-02
GB356506A (en) 1931-09-10
GB350443A (en) 1931-06-08
FR37719E (fr) 1931-01-14
FR681471A (fr) 1930-05-15
BE366193A (enrdf_load_stackoverflow) 1930-01-31

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