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:
Jan. 13, 2009
Filed:
Jul. 26, 2005
Applicants:
Lianrui Zhang, Plano, TX (US);
Charles Weinberger, McKinney, TX (US);
Inventors:
Lianrui Zhang, Plano, TX (US);
Charles Weinberger, McKinney, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method and system for testing a transceiver communication device operating in a test mode, a transmitter output signal generated by a transmitter is adjusted and provided as a loop back to a receiver. The adjustment includes shifting a frequency and attenuating amplitude of the transmitter output signal to substantially match a predefined frequency and a predefined amplitude of a receiver input signal received by the receiver. A pass or fail status of the device is determined by comparing transmitted and received data.