Texas Instruments Corporation

Radiospire Networks, Inc.

Envoy Networks, Inc.

Tandhoni S Rao

Samuel Jay MacMullan

Stuart C Schwartz

Triveni N Upadhyay

Alexander Flaig

H Vincent Poor

Louis R Brothers, Jr

John Cangeme

Steven Fastert

Harold Vincent Poor

Suman Narayan

Samuel J MacMullen

Vincent H Poor

Samuel J Macmullan

Interference cancellation is performed in a communication system. A signal associated with the users is received to produce a received signal. A set of regeneration factors associated with the users is determined based on the received signal. A frequency range associated with a first user from the users has at least a portion overlapping with at least a portion of a frequency range associated with a second user from the users. A time range associated with the first user from the users has at least a portion overlapping with at least a portion of a time range associated with the second user from the users. A regenerated signal associated with each user from the users is modified based on the determined regenerated factor associated with that user to produce a modified regenerated signal for each user.

Method and apparatus for regenerative based interference cancellation within a communication system

A system, method and apparatus for implementing a wireless point-to-point interface that securely and robustly delivers digital content from a generalized content source to a generalized content sink. The system, method and apparatus performs in a manner that is sufficiently secure and robust to serve as a replacement for the delivery of HDMI content over cable. The system, method and apparatus is also applicable to the delivery of other types of content traditionally delivered over cable, including but not limited to Digital Video Interface (DVI) content, composite video (CVSB) content, S-video content, RGB video content, YUV video content, and/or various types of audio content.

System, method and apparatus for wireless delivery of content from a generalized content source to a generalized content sink

A first downlink transmission beam and a second downlink transmission beam is determined based on a received user-derived signal. The first downlink transmission beam is substantially uncorrelated with the second downlink transmission beam. The first downlink transmission beam is associated with a portion within a first sector. The second downlink transmission beam is associated with a portion within a second sector. A first signal is diversity encoded to produce a first diversity-encoded signal. A second signal is diversity encoded to produce a second diversity-encoded signal. The first diversity-encoded signal is sent over the first downlink transmission beam. The second diversity-encoded signal is sent over the second downlink transmission beam.

Method and apparatus for received uplinked-signal based adaptive downlink diversity within a communication system

Method and apparatus for high resolution tracking via mono-pulse beam-forming in a communication system in which the capacity and range of mobile or fixed wireless communication base stations are improved by implementing a single or multiple antenna beam per signal path. Adaptive beam-forming based on up-link direction-of arrival estimation can be performed without using the above-mentioned computationally intensive techniques.

Method and apparatus for high resolution tracking via mono-pulse beam-forming in a communication system

A method of testing the performance of real time DSP algorithms after customer code has been added and includes the steps of embedding a signature equation in the DSP code that calculates to a given signature value at the output of the DSP when running a test mode program through the DSP.

Method and system for testing the performance of DSP

A method and communication system (10), which can be used in a full, pseudo full, or half duplex speaker-phone system, includes a circuit (14) to remove a frequency component from a received signal to output a modified received signal, and a speaker (18) to convert the modified received signal to an acoustic signal (20). The circuit (14) may be, for example, a notch filter, which may remove a sharp frequency range between about 1250 Hz and 1550 Hz. A microphone (26) converts a second acoustic signal (24) to an electrical signal for transmitting, and a detector (30) produces a detector output if the removed frequency is present in the acoustic signal (24). A circuit (34) is also provided to modify a circuit parameter applied to the received signal when the detector (30) produces a detector output. The parameter may be, for instance an attenuation applied to the received signal.

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Ashland, MA, United States of America

Tandhoni S Rao