The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 1991
Filed:
Jun. 07, 1989
Bruce W Robertson, Salt Lake City, UT (US);
Other;
Abstract
A multi-channel video message display system that includes a single controller with plurality of channel modules, one for each channel and utilizes a single character generator at a broadcast or rebroadcast source that places alpha numeric or symbolic messages on a single or multiple non-synchronous television channels, where the synchronization pulses of a video input that are passed to the various channels are never replaced by externally generated signals. Horizontal drive sync pulses as are present in a television video signal are utilized as the driving pulses for the output of each channel module and character information is inserted into the channel modules by switching from the video signal input to the pixel digital input only during times when the trace is visible on a television screen. Pixel form allows any number of channels to be serviced by one character generator, with data held in memory in the channel modules transmitted in pixel form into the video signal with simple real time timing pulses.