The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2018
Filed:
Nov. 06, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
Timothy J. Talty, Beverly Hills, MI (US);
Cynthia D. Baringer, Malibu, CA (US);
Mohiuddin Ahmed, Moorpark, CA (US);
Albert E. Cosand, Agoura Hills, CA (US);
James Chingwei Li, Simi Valley, CA (US);
Peter Petre, Oak Park, CA (US);
Zhiwei A. Xu, Davis, CA (US);
Yen-Cheng Kuan, Los Angeles, CA (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A cellular radio architecture that includes a programmable bandpass sampling radio frequency front-end and an optimized digital baseband. The architecture includes a receiver module having a plurality of signal channels for different frequency bands, where each signal channel in the receiver module includes a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The architecture also includes a transmitter module having a transmitter delta-sigma modulator for converting digital data bits to analog transmit signals, where the transmitter module includes a power amplifier and a switch for directing the transmit signals to one of the signal paths. The architecture also includes a dual self-cancellation circuit providing digital and analog cancellation of the transmit signal in the receiver module.