Aspect ratio-improved television system compatible with conventional systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 28, 1992
Grant Date -
N/A
app pub date -
Oct 2, 1989
filing date -
Sep 30, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a wide-aspect television system, apparatus is provided for producing a source television signal for a wide aspect television screen, which source signal has the same horizontal and vertical synchronizing frequencies, but fewer effective scanning lines than a conventional television system. The wideaspect television system further includes apparatus for expanding the time base of the mentioned source television signal in the horizontal direction by a predetermined ratio. Further included is an apparatus for receiving a time base-expanded television signal produced by the expanding apparatus for arranging video information of both side areas of a time base-expanded television signal into top and bottom added scanning lines. A remaining area of the time base-expanded television signal substracted by both mentioned side areas have a horizontal scanning period substantially equal to a horizontal scanning period of the conventional television system. The total effective scanning lines of the source television signal and the top and bottom added scanning lines substantially corresponds to the total effective scanning lines of the conventional television system.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully