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:
Apr. 20, 2004
Filed:
Sep. 03, 2002
Tzvi Tzelnick, Tel-Aviv, IL;
Lenslet Ltd., Herzelia Pituach, IL;
Abstract
A digital to analog converter array including a plurality of pixels arranged in an array and independently addressable to selectively modulate light; a digital counter which generates a sequence of numbers in digital form; an analog signal source which generates an analog signal that corresponds the sequence generated by the digital counter; and a plurality of array elements which control the pixels, each element including a digital memory register holding at least one input number; a comparator which generates an enabling signal responsive to a comparison between the number in the sequence and the input number; and a sample and hold circuit which samples the value of the analog signal, responsive to said enabling signal, and sets an output voltage controlling a pixel to said value, wherein the array is configured so that the comparators in all the array elements compare the number in the sequence to the input numbers held in said array elements substantially simultaneously.