Robert K Riffee

US Patent:

7031391, Apr 18, 2006

Filed:

Feb 18, 1997

Appl. No.:

08/800574

Inventors:

Robert Keith Riffee - Melbourne FL, US

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04N 7/12

US Classification:

37524027

Abstract:

A narrowband video codec for generating an output stream of control, data, and error correction bits includes means for framing the outputs control and data bits into a series of sequential frames of bytes for transmission over an RF link of a controlled frequency. Each frame includes an identical sequence of bytes. Each frame of bytes includes, in sequence, two control bytes, a plurality of sequential sets of data bytes, and a plurality of error correction bytes. Each set of data bytes includes a sequence of at least one audio byte and a plurality of video bytes. At least one video byte is between each sequential audio byte. Each set of data bytes has its audio and video bytes in the same order as each other set of data bytes.

US Patent:

56753756, Oct 7, 1997

Filed:

Dec 15, 1994

Appl. No.:

8/356683

Inventors:

Robert Keith Riffee - Melbourne FL

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04M 1100

US Classification:

348 15

Abstract:

A home videoconferencing system 100 uses a standard television receiver 16 and a camcorder 14. The video controller 112 converts an outgoing analog video signal into a compressed digital video signal; an audio controller 116 converts an outgoing analog audio signal into a compressed digital audio signal. The system controller 120 multiplexes, synchronizes and error corrects outgoing and incoming digital system signals. The digital system signals are coupled to a modem 122 for transmission and reception over analog phone lines 124.