The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 22, 2001

Filed:

Mar. 19, 1997
Applicant:
Inventors:

Claudia K. Richards, Hampstead, NH (US);

William M. Buchanan, Hampstead, NH (US);

Assignee:

Lucent Technologies, Inc., Murray Hill, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/173 ;
U.S. Cl.
CPC ...
H04N 7/173 ;
Abstract

In accordance with the present invention, a cable system allows bidirectional digital communication between a plurality of subscriber Digital Video Home Terminals each located at a different subscriber location and a cable headend via a RF Trunk. The cable headend has a processor for calculating and storing a randomized back-off array for each of the plurality of subscriber Digital Video Home Terminals. Each subscriber Digital Video Home Terminal receives the randomized back-off array for controlling through an algorithm when a Digital Video Home Terminal attempts to send a message to a cable headend. If a collision between the two messages is imminent, the last Digital Video Home Terminal to send the message backs-off and then reattempts to send the message a plurality of times after a random back-off interval of time has passed after each reattempt until no collision would occur with another message generated from a different Digital Video Home Terminal.


Find Patent Forward Citations

Richards, Claudia. (2001). System and method of bidirectional digital video communication over a cable (U.S. Patent No. 6237146). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6237146

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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