Patent Inventor: Philip L. Young

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Apparatus for telephone communication over plural channels
Inventor: Greenberg, et al. | Patent Number: 6091721

Method and apparatus for generating a video signal producing an unviewable display from a videotape recording thereof
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Method and apparatus for modifying a video signal to inhibit unauthorized videotape recording and subsequent reproduction thereof
Inventor: Young, et al. | Patent Number: 5585929

Method and apparatus for modifying a video signal to inhibit unauthorized videotape recording and subsequent reproduction thereof
Inventor: Young, et al. | Patent Number: 5251041

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