Patent Yard Sign in
Expired Canadian patentCanada

Multiplex subsampling transmission system for a high definition color television picture signal

CA 1213359 A · Owner: Nippon Hoso Kyokai · Inventors: Ninomiya, Yuichi; Izumi, Yoshinori; Ohtsuka, Yoshimichi

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A high definition color television picture signal is unified by the time-axis compressed integration (TCI) and the bandwidth thereof is extremely narrowed by the dot-interlace subsampling. As a result a narrow, band transmission picture signal accompanied with a control signal adapted to the restoration of the received original picture signal, which is suitable for the satellite broadcast, can be obtained through a comparatively simple arrangement. The received narrow band transmission picture signal can be restored by the interpolation adapted respectively to the stationary picture and the motional picture under the control of the control signal or the picture-motional information detected …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted October 28, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 18, 1984
GrantedOctober 28, 1986
Term endedOctober 28, 2003
Patent numberCA 1213359 A
Classification (IPC)H04N11/02 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedOct 18, 1984Patent grantedOct 28, 1986Term endedOct 28, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.