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:
Sep. 17, 2002
Filed:
Nov. 29, 2000
Andrew D. Smith, Redondo Beach, CA (US);
Quentin P. Herr, Torrance, CA (US);
Mark W. Johnson, La Canada Flintridge, CA (US);
Bruce J. Dalrymple, Redondo Beach, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A superconducting A/D converter ( ) has an error correction system ( ) for eliminating non-linearities in a primary quantizer ( ). The converter ( ) includes a primary quantizer ( ), a primary SFQ counter ( ), and the error correction system ( ). The primary quantizer ( ) generates primary SFQ pulses based on an average voltage of an analog input signal. The primary SFQ counter ( ) converts the primary SFQ pulses into a digital output signal based on a frequency of the primary SFQ pulses. The error correction system ( ) corrects the digital output signal based on the analog input signal and the primary SFQ pulses. Using the primary SFQ pulses to correct the digital output signal allows the converter ( ) to take into account the non-linearities of the primary quantizer ( ).