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. 09, 2002
Filed:
May. 05, 1998
Applicant:
Inventor:
Shivaling S. Mahant-Shetti, Garland, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 3/14 ;
U.S. Cl.
CPC ...
H04N 3/14 ;
Abstract
A digital camera ( ) that has an array ( ) of CMOS sensor elements ( ). The array ( ) is read in a manner that performs spatial-to-frequency transforms for image compression on the analog output signals of the sensor elements. More specifically, wordlines ( ) and bitlines ( ) are pulsewidth modulated so that the coincidence of their “on” times corresponds to a desired coefficient of the basis function of the transform (FIGS. and ). Additional comparator circuitry ( ), quantizers ( ), and encoding circuitry ( ) can be part of the same integrated circuit as the array ( ).