Ronald J Harper

US Patent:

55172512, May 14, 1996

Filed:

Apr 28, 1994

Appl. No.:

8/234300

Inventors:

David M. Rector - West Los Angeles CA
Ronald M. Harper - Los Angeles CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

H04N 7087

US Classification:

348476

Abstract:

A system for processing multiple signals. The system includes a receiver for receiving a video signal representative of a camera image, the video signal being represented as multiple horizontal lines in a video frame, a receiver for receiving multiple analog signals, the analog signals being representative of different analog inputs, a buffer for digitally double buffering at least some of the analog signals, wherein the buffer effects repetition of analog signals within a single video image frame, repeats sampling of the analog signals more than once within a single video frame and the digitization enhances recovery of the signal resolution of the analog signal with greater frequency and representation than an analog signal on a video signal. The system also comprises a mixer for mixing the analog signals with the video signal whereby the analog signals are contained on at least some of the horizontal lines of the video frame, and an output for outputting the mixed analog and video signals.

US Patent:

57987980, Aug 25, 1998

Filed:

Feb 26, 1996

Appl. No.:

8/607236

Inventors:

David M. Rector - Los Angeles CA
Ronald M. Harper - Los Angeles CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

H04N 7087

US Classification:

348476

Abstract:

A system provides for simultaneous collection, storage and analysis of an analog signal and video signal. Multiplexes of up to 240 low bandwidth analog channels with a camera video signal is effective. The output is a standard composite video signal containing analog and video data. The combined signals can be stored on videotape, or can be digitized by a framegrabber. The circuitry separates horizontal synchronizing pulses from a camera output. The signal is then multiplexed with the video signal, such that a portion of each video horizontal line represents the analog data. The combined output is stored together, providing a means for synchronizing the two signals during analysis. The design allows easy coordination of animate and inanimate events with video images from a standard video camera. The system also provides for interleaving digitized physiological signals and video images of subjects onto digital media in a standard file format.