GB931279A - Improvements in or relating to television systems - Google Patents

Improvements in or relating to television systems

Info

Publication number
GB931279A
GB931279A GB36784/62A GB3678462A GB931279A GB 931279 A GB931279 A GB 931279A GB 36784/62 A GB36784/62 A GB 36784/62A GB 3678462 A GB3678462 A GB 3678462A GB 931279 A GB931279 A GB 931279A
Authority
GB
United Kingdom
Prior art keywords
line
field
areas
picture
cells
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
GB36784/62A
Inventor
Leslie Connock Jesty
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.)
SYLVANIA THORN COLOUR TELEVISION LABORATORIES Ltd
Original Assignee
SYLVANIA THORN COLOUR TELEVISION LABORATORIES 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 SYLVANIA THORN COLOUR TELEVISION LABORATORIES Ltd filed Critical SYLVANIA THORN COLOUR TELEVISION LABORATORIES Ltd
Publication of GB931279A publication Critical patent/GB931279A/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
    • 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
    • H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Details Of Television Scanning (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

931,279. Television. SYLVANIA-THORN COLOUR TELEVISION LABORATORIES Ltd. April 6, 1960 [April 6, 1959], No. 36784/62. Divided out of 931,277. Addition to 850,024. Class 40 (3). A dot-interlaced television picture is produced in the form of fields of elementary areas the areas of each field lying at the points of a lattice having diamond-shaped cells with the areas of one field lying at the centres of the cells of the preceding field and the directions of the diagonals of the cells extending vertically and horizontally when the picture is upright in a vertical plane. To produce such a picture the beam of the display device is scanned line sequentially and the motion of the beam along the line of scan is periodically modulated to generate the elementary areas the phase of the modulation varying 180 degrees from line to line in any one field and from a line in one field to the corresponding line in the succeeding field. The modulating waveform may be a sawtooth or a sinusoidal wave to which one or more harmonics are added and the necessary phase relationship may be obtained automatically by relating the modulation frequency to the line and field frequencies.
GB36784/62A 1959-04-06 1959-04-06 Improvements in or relating to television systems Expired GB931279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11604/59A GB931277A (en) 1959-04-06 1959-04-06 Improvements in and relating to television picture display devices

Publications (1)

Publication Number Publication Date
GB931279A true GB931279A (en) 1963-07-17

Family

ID=9989298

Family Applications (3)

Application Number Title Priority Date Filing Date
GB37537/57A Expired GB850024A (en) 1959-04-06 1957-12-02 Improvements in or relating to television systems
GB11604/59A Expired GB931277A (en) 1959-04-06 1959-04-06 Improvements in and relating to television picture display devices
GB36784/62A Expired GB931279A (en) 1959-04-06 1959-04-06 Improvements in or relating to television systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB37537/57A Expired GB850024A (en) 1959-04-06 1957-12-02 Improvements in or relating to television systems
GB11604/59A Expired GB931277A (en) 1959-04-06 1959-04-06 Improvements in and relating to television picture display devices

Country Status (1)

Country Link
GB (3) GB850024A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115641B (en) 1982-02-24 1986-08-06 Rca Corp Compatible high definition television system
US4533951A (en) * 1982-09-27 1985-08-06 Rca Corporation System for generating and displaying a compatible high definition television signal by progressive scanning
US4707728A (en) * 1982-02-24 1987-11-17 Rca Corporation Compatible HDTV with increased vertical and horizontal resolution
US4521803A (en) * 1982-10-07 1985-06-04 General Electric Company System for compatible transmission of high-resolution TV

Also Published As

Publication number Publication date
GB850024A (en) 1960-09-28
GB931277A (en) 1963-07-17

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