US Patent No: 5,206,722

Number of patents in Portfolio can not be more than 2000

Remote channel switching for video on demand service

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

VOD services are provided by providing at each subscriber location a switching apparatus (e.g., 23 of FIG. 2) which is remotely controlled from the head end (12) of the system. A set top box of each subscriber is provided with a single channel designation (X) for VOD reception. In response to a request from a subscriber for a particular TV program at a specified time, the provider at the head end actuates the switching apparatus (23) to permit the set top box to be tuned to a specified channel that corresponds to a channel upon which the requested VOD program will be transmitted. Then, when the subscriber selects on his set top box the single VOD channel designation (X), the set top box is capable of receiving the requested TV program on the specific TV channel of the transmission line (11) that has been designated for it by the provider at the head end.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AMERICAN TELEPHONE AND TELEGRAPH COMPANYMURRAY HILL, NJ3138
AT&T BELL LABORATORIESMURRAY HILL, NJ3372

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kwan, Shue-Yu Parsippany, NJ 2 125

Cited Art

Patent Info (Count) # Cites Year
 
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LODGENET INTERACTIVE CORPORATION (1)
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SOUNDVIEW TECHNOLOGIES INCORPORATED (1)
4,554,584 Video and audio blanking system 138 1983
 
TEXSCAN CORPORATION (1)
4,823,386 Addressable subscriber cable television system 78 1987
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,446,458 Monitoring and control system 50 1981

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
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