Serving constant bit rate traffic in a broadband data switch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5150358
SERIAL NO

07571800

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention relates to a method and apparatus for transmitting constant and variable bit rate traffic in a broadband ISDN switch. Data from constant bit rate sources such as television cameras is entered into a group of queues. Each member of the group for queuing data of a different band of bit rates. Data is transmitted from these queues with highest priority from the queue storing data of the highest band of bit rates. If the longest enqueued entity of data in one of the other queues has been enqueued for more than a prespecified period, its priority is increased. Analytic studies have shown that use of three queues for constant bit rate traffic and a fourth queue for variable bit rate traffic allows a high occupancy in the output channels to be maintained with a negligible number of data entities excessively delayed.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AMERICAN TELEPHONE AND TELEGRAPH COMPANYMURRAY HILL, NJ1082
AT&T Bell LaboratoriesMURRAY HILL, NJ979

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Punj, Vikram Naperville, IL 9 837
Wong, Albert K Edison, NJ 2 99

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