Interactive video distribution systems – Video distribution system with upstream communication – Having link to external network
Reexamination Certificate
2005-09-20
2005-09-20
Vu, Ngoc K. (Department: 2611)
Interactive video distribution systems
Video distribution system with upstream communication
Having link to external network
C725S114000, C725S118000, C725S130000, C370S242000, C370S252000, C375S220000, C375S377000
Reexamination Certificate
active
06948184
ABSTRACT:
A system and method for calibrating power level during initial ranging of a network client device, such as cable modem facilitates communications between a network client device and a network device such as a cable modem termination system. The method includes dividing the dynamic range of the cable modem transmitter into a plurality of regions and attempting initial ranging in each of the different regions. If a response is not received from the network device, the method including adjusting the power level and reattempting the initial ranging in the different regions. Once a range response message is received from the network device the process of initial ranging is complete.
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“Baseline Privacy Interface
Del Sol Timothy
Krishnamurthy Gopalan
3Com Corporation
McDonnell Boehnen & Hulbert & Berghoff LLP
Vu Ngoc K.
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