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:
Jul. 29, 2008
Filed:
Dec. 21, 2005
Kent Kernahan, Cupertino, CA (US);
Xuecheng Jin, Palo Alto, CA (US);
Ping Lo, Santa Clara, CA (US);
Ion E. Opris, San Jose, CA (US);
Sorin Andrei Spanoche, Santa Clara, CA (US);
Kent Kernahan, Cupertino, CA (US);
Xuecheng Jin, Palo Alto, CA (US);
Ping Lo, Santa Clara, CA (US);
Ion E. Opris, San Jose, CA (US);
Sorin Andrei Spanoche, Santa Clara, CA (US);
Exar Corporation, Fremont, CA (US);
Abstract
Methods and devices perform analog to digital signal conversion in shorter time and/or with less power consumption than that of a comparable analog to digital conversion that uses a conventional sequential approximation method based on a binary search. A predictive guess is supplied as a digital first signal. The digital first signal is converted (D/A) to a counterpart, analog guess signal. Fewer cycles and less power is consumed if the initial guess is within a certain range of the actual magnitude of the analog input sample signal. In one embodiment, a digital modeler is used to model a process underlying the analog input sample signal to thereby provide fairly good guesses.