G - Physics – 08 – C
Patent
G - Physics
08
C
G08C 23/00 (2006.01) H03J 1/00 (2006.01) H04B 1/20 (2006.01)
Patent
CA 2123503
METHODS AND APPARATUS FOR COMMUNICATING PROGRAM DATA SIGNALS VIA A REMOTE CONTROL UNIT ABSTRACT A remote control system including a hand held remote control unit (200) with an alphanumeric information display (209), for controlling and communicating with a first controlled device (100), such as a digital music tuner connected to a community antenna television (CATV) cable, and for controlling a selected one ofa plurality of second controlled devices (300), such as CATV set-top-units, VCRs, or television sets. A first, high speed, error free display information communications protocol is utilized for transmitting program content or other information from the first controlled device (100) to the remote control unit (200) for display. A second or control communications protocol is utilized by the remote control unit (200) for controlling the first controlled device (100) and a selected one of the second controlled devices (300). The first controlled device (100) utilizes a first clock signal embedded in digital music signals provided via the cable to derive clocking signals for implementing the display information communications protocol, resulting in an efficient, low cost electronic design.
Cook Alex M. Jr.
Johnson Lee R.
Kuban Curt M.
Levitan David E.
Mcginty Emory L.
Finlayson & Singlehurst
Scientific-Atlanta Inc.
LandOfFree
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