GB199349A - Method and system for transmitting pictures to a distance - Google Patents

Method and system for transmitting pictures to a distance

Info

Publication number
GB199349A
GB199349A GB34181/22A GB3418122A GB199349A GB 199349 A GB199349 A GB 199349A GB 34181/22 A GB34181/22 A GB 34181/22A GB 3418122 A GB3418122 A GB 3418122A GB 199349 A GB199349 A GB 199349A
Authority
GB
United Kingdom
Prior art keywords
picture
impulses
frequency
audio
variations
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
GB34181/22A
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.)
PICTURADIO CORP
Original Assignee
PICTURADIO CORP
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 PICTURADIO CORP filed Critical PICTURADIO CORP
Publication of GB199349A publication Critical patent/GB199349A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00095—Systems or arrangements for the transmission of the picture signal
    • H04N1/00103—Systems or arrangements for the transmission of the picture signal specially adapted for radio transmission, e.g. via satellites

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)

Abstract

199,349. Picturadio Corporation, (Assignees of Keen, E.). June 13, 1922, [Convention date]. Drawings to Specification. Copying telegraphs. - In the transmission of pictures to a distance a representation of the picture is first formed on which light and shade variations are represented by raised lines or corrugations adapted to co-operate with a stylus to produce sounds as in a phonograph, which are converted to corresponding current variations and transmitted by wireless, or to produce groups of current impulses of definite frequency, the number of impulses per group depending upon the intensity of tone of each picture element. The receiver reproduces the picture photographically under control of the received current variations, and is synchronized by a start-stop device under control of impulses from the transmitter end sent at each rotation of the transmitter and of a frequency different from that of the picture impulses. The received picture currents after successive passage through a radio-frequency amplifier, detector, audio-frequency amplifier, and audio-transformer pass through the wire of a stretched wire galvanometer.
GB34181/22A 1922-06-13 1922-12-14 Method and system for transmitting pictures to a distance Expired GB199349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US567936A US1503590A (en) 1922-06-13 1922-06-13 Method and system for transmitting pictures to a distance

Publications (1)

Publication Number Publication Date
GB199349A true GB199349A (en) 1924-03-14

Family

ID=24269234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34181/22A Expired GB199349A (en) 1922-06-13 1922-12-14 Method and system for transmitting pictures to a distance

Country Status (2)

Country Link
US (1) US1503590A (en)
GB (1) GB199349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618702A (en) * 1950-06-23 1952-11-18 Eastman Kodak Co Variable underlap drum facsimile transmitting apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449522A (en) * 1965-07-21 1969-06-10 Magnavox Co Acoustical coupler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618702A (en) * 1950-06-23 1952-11-18 Eastman Kodak Co Variable underlap drum facsimile transmitting apparatus

Also Published As

Publication number Publication date
US1503590A (en) 1924-08-05

Similar Documents

Publication Publication Date Title
US2391776A (en) Intelligence transmission system
US3406344A (en) Transmission of low frequency signals by modulation of voice carrier
US3967067A (en) Secret telephony
US3491199A (en) Facsimile multiplex system
GB434882A (en) Improvements in or relating to television systems
US2083653A (en) Transmission system
GB199349A (en) Method and system for transmitting pictures to a distance
US2006961A (en) Secret signaling
US1802745A (en) Dot multiplex
GB952570A (en) Data transmission apparatus
US2066261A (en) Facsimile receiving system
US2186895A (en) Telegraph system
US1464565A (en) Call system for radiotelephony
US2707208A (en) Secrecy facsimile system
US2217157A (en) Telefacsimile transmission system
US1694874A (en) Method of electrical signaling
US1920015A (en) Synchronizing system
US2186898A (en) Telegraph storage system
US1513973A (en) Radiotelephony
US1905193A (en) Combined clock and radio system
US1624601A (en) Secret communication
GB306407A (en)
GB1043232A (en) Improved wired broadcasting systems and apparatus therefor
US1545301A (en) Telegraphy combined with phototelegraphy or telautography
USRE19561E (en) jenkins