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:
Feb. 29, 2000
Filed:
Oct. 09, 1997
Applicant:
Inventors:
Les Priebe, Plano, TX (US);
Mark Philip Swenholt, Plano, TX (US);
Ronald Persson, Carrollton, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H03D / ;
U.S. Cl.
CPC ...
375224 ; 375329 ;
Abstract
A method of resolving the frequency ambiguities which result when the instantaneous bandwidth of a digital receiver exceeds the sampling frequency of the digital to analog converter. The frequency ambiguities which result from sampling an input signal below the Nyquist rate are resolved by simultaneously sampling the signal at multiple sample frequencies and then using a lookup table to identify the unique mapping of the common signal into the multiple sample frequency baselines.