Texas Instruments Corporation

Yaser M Ibrahim

Michael Oliver Polley

Jin-Meng Ho

Nirmal Chindhu Warke

Alon Paycher

Arthur John Redfern

Fernando Alberto Mujica

Song Wu

Ralph E Payne

Yaqi Cheng

Joseph Michael Erickson

One embodiment of the present invention includes a system for managing timing functions associating with at least one timing protocol. The system comprises a controller configured to implement a plurality of functions at each of a respective plurality of scheduled times. The system also comprises a time protocol converter configured to convert each of the plurality of scheduled times to a respective plurality of time values associated with a master timing protocol. The system further comprises a master timer controller configured to generate a plurality of control signals associated with the plurality of functions based on an accumulated value of a master timer associated with the master timing protocol relative to the plurality of time values.

Systems and methods for managing timing functions in multiple timing protocols

A method of communicating across a channel includes receiving information having a known bandwidth and a known spectrum. The information is preferably in the form of a multicarrier modulated signal, e.g., a DMT signal. In one aspect, this information is received at a receiver having a reduced channel bandwidth. An aliasing spectrum can be calculated based on the known spectrum and the frequency difference between the known bandwidth and the reduced-channel bandwidth. The received information can then be modified based upon the aliasing function to compensate for alias distortion. For example, the received information can be modified by modifying the noise component or signal-to-noise ratio of the received information.

Method of initializing a communication system with different bandwidth receivers and transmitters

A multi-client ADSL modem network () that can be configured for a home or office network when multiple ADSL client modems () are installed in different communication terminals (). One ADSL modem () at a central office () coordinates the remote multi-client modems () for communication over a single twisted pair loop carrier phone line (), allowing the connected modems () to communicate not only with the CO modem (), but also with each other by sharing frames, tones, or by code division techniques on upstream channels. The CO modem () operates as a network hub and/or arbitrator, and facilitates one ADSL modem to become the master modem and maintain a superframe. The present invention provides home network ADSL service without extra wiring or equipment, thus providing a low cost approach for home networking of ADSL service.

Multi-client ADSL modem

A digital subscriber line modem ( ) capable of operating with multiple transmission line profiles depending on the current transmission line characteristics of a wire line pair ( ) includes an interface ( ) to the wire line pair ( ) and a signal converter ( ) with a terminal coupled to the interface. An on/off-hook detector( ) drives an impedance analyzer function ( ) that is able to measure transmission line parameters based on the current line characteristics of the wire line pair ( ). A control logic block ( ) performs the actions required to adapt to a new line conditions of the wire line pair ( ) and rapidly adapt to the new on/off hook condition.

Residential power cutback for splitterless DSL operation

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Richardson, TX, United States of America

Yaser M Ibrahim