GB392810A - Television transmission method - Google Patents

Television transmission method

Info

Publication number
GB392810A
GB392810A GB27383/32A GB2738332A GB392810A GB 392810 A GB392810 A GB 392810A GB 27383/32 A GB27383/32 A GB 27383/32A GB 2738332 A GB2738332 A GB 2738332A GB 392810 A GB392810 A GB 392810A
Authority
GB
United Kingdom
Prior art keywords
oscillations
oct
lines
cycles per
oscillation
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
GB27383/32A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB392810A publication Critical patent/GB392810A/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
    • H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
    • H04N3/32—Velocity varied in dependence upon picture information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Abstract

392,810. Television. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde, Berlin. Oct. 3, 1932, No. 27383. Convention date, Oct. 6, 1931. Drawings to Specification. [Class 40 (iii).] Relates to the television system in which a spot of light of constant intensity scans a field of view with a varying speed under the control of two oscillations, one producing linear movement of the light spot and the other producing movement transverse to the lines. The two oscillations comprise frequency bands which overlap. According to the invention, the frequency bands of the two oscillations are so selected that they may be modulated on to a single carrier frequency and separated after demodulation. Preferably the oscillation controlling movement transverse to the lines is restricted to a frequency band of 0À750 cycles per second and the other oscillation does not comprise frequencies lower than 1,000 cycles per second. This selection of frequency band width and separation at the receiver is effected by the use of filter circuits. Specification 355,319 is referred to.
GB27383/32A 1931-10-06 1932-10-03 Television transmission method Expired GB392810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE392810X 1931-10-06

Publications (1)

Publication Number Publication Date
GB392810A true GB392810A (en) 1933-05-25

Family

ID=6387851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27383/32A Expired GB392810A (en) 1931-10-06 1932-10-03 Television transmission method

Country Status (1)

Country Link
GB (1) GB392810A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515339A (en) * 1947-06-27 1950-07-18 Bell Telephone Labor Inc Three coordinate indicating system for radar apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515339A (en) * 1947-06-27 1950-07-18 Bell Telephone Labor Inc Three coordinate indicating system for radar apparatus

Similar Documents

Publication Publication Date Title
US2499279A (en) Single side band modulator
US2095050A (en) Signaling
GB392810A (en) Television transmission method
GB546932A (en) Improvements in television receivers
US2138577A (en) Electro-optical transmission
US1819508A (en) Communication by frequency variation
US2364863A (en) Heterodyne eliminator
US2236705A (en) Composite signal device
US2005795A (en) High frequency multiplex signaling system
US3375444A (en) Vestigial sideband modulator circuit
GB929025A (en) Improvements in or relating to signal transmission systems
US1821997A (en) Compression of frequency range
GB433295A (en) Improvements in or relating to television
US1592885A (en) Broadcast transmission system
DE704115C (en) Method for the transmission of image currents by dividing the total frequency band to be transmitted into two sub-areas
US2140912A (en) Single side-band transmission system
US2161313A (en) Method of modulating high frequency transmitters
GB430463A (en) Improvements in or relating to television systems
GB443012A (en) Improvements in or relating to television and like systems
GB515474A (en) Improvements in or relating to television transmission systems and the like
US2219936A (en) Signaling system
GB421937A (en) Improvements in and relating to picture assembling in television receivers
GB554668A (en) Carrier-signal receiver
GB348440A (en)
GB622838A (en) Improvements in or relating to tunable apparatus