Television – Format – Including additional information
Patent
1997-05-01
2000-09-12
Kostak, Victor R.
Television
Format
Including additional information
348553, H04N 708
Patent
active
06118490&
ABSTRACT:
A communication system for transmitting information by digital binary signaling over an optical channel as a series of light pulses each beginning with a minimum duration and thereafter being variable to represent different binary states. Transmission is between an optical transmitter based on a portion of a display screen in a display device and a photodetector in a signal processing system. Information is recovered by finding averaged sample values, and is evaluated by comparing it against an accumulated averaged sample based threshold derived from the optical signal at a selected intensity. The information received can be used to verify user inputs to the signal processing system.
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Meyer Michael F.
Moore Kevin B.
Voss Robert C.
Interactive Learning Group, Inc.
Kostak Victor R.
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