Method for television scrambling

United States of America Patent

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Feb 12, 1991
Issued Date
N/A
app pub date
Feb 26, 1987
filing date
Feb 26, 1987

priority date (Note)
Expired

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Abstract

A method and device for inexpensively and efficiently controlling the distribution of pay-per-access information services is disclosed including varying scrambling methods and user exchangeable cards.

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Patent Owner(s)

TECHSEARCH, L.L.C.

International Classification(s)

H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Jenkins, Henry H	220 N. Smith Ave., Corona, CA 91720	16	196

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Method for television scrambling

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07019301

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