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:
Dec. 03, 2002
Filed:
Jun. 30, 2000
Günter W. Steinbach, Palo Alto, CA (US);
James Chow, Palo Alto, CA (US);
Kenny Wen, San Jose, CA (US);
Khin Lay, Santa Clara, CA (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
An analog-to-digital converter (ADC) ( ) for sampling high speed video signals includes Pre-amplifiers ( ) electrically coupled to Post-amplifiers ( ) that are electrically coupled to output latches ( and ). A sampling clock signal ( ) clocks the output latches ( and ) to sample an input analog electronic signal to provide a digital representation thereof. The ADC ( ) includes an auto-zeroing function to cancel bias voltages at the Post-amplifiers ( ) during a video signal horizontal blanking time period. The ADC ( ) includes a bit dithering function by alternating sets of reference voltages into the Pre-amplifiers ( ) increasing bit resolution. The ADC ( ) includes wired interconnect interpolation between the Pre-amplifiers ( ) and Post-amplifiers ( ) and between the Post-amplifiers ( ) and the output latches ( and ).