06466088 is referenced by 31 patents.

An apparatus and method for reducing power requirements in X-DSL and other communication protocols is disclosed. The apparatus may be applied with equal advantage in wired and wireless media Power is supplied selectively to input lines in which input signals exceed selected threshold levels. The apparatus is configured to support statistical multiplexing of the input signal lines across a plurality of amplification means which support amplification at up to either of at least two power levels. This reduces overall power requirements for the combined input lines. In an embodiment of the invention an apparatus for providing amplification of input signals on corresponding ones of a plurality of input signal lines is disclosed. The apparatus includes primary amplifiers and at least one secondary amplifier with higher output levels than the primary amplifier which can be statistical multiplexed to whichever of the input signal lines requires additional amplification. In an alternate embodiment of the invention each input signal line is coupled to a corresponding amplifier which can be statistically multiplexed to a power supplies of varying output levels depending on the amplification requirements of each of the input signal lines.

Title
Method and apparatus for multi-channel X-DSL line driver
Application Number
9/779254
Publication Number
6466088 (B1)
Application Date
February 7, 2001
Publication Date
October 15, 2002
Inventor
Caesar Seehoi Wong
Fremont
CA, US
Dale Smith
Fremont
CA, US
John Zhongxuan Zhang
Fremont
CA, US
Behrooz Rezvani
Pleasanton
CA, US
Agent
Cary & Kelly
US
Agent
Charles C Cary
US
Assignee
Ikanos Communications
CA, US
IPC
H03F 1/14
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