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. 08, 2009
Filed:
Dec. 04, 2006
Applicants:
Yann Le Guillou, Caen, FR;
Herve Marie, Van sur Mer, FR;
Inventors:
Yann Le Guillou, Caen, FR;
Herve Marie, Van sur Mer, FR;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An analog-to-digital converter (ADC) of the Sigma Delta type provides a stream of digital output samples (OUT) in response to an analog input signal (IN). The analog-to-digital converter (ADC) comprises a quantizer (QNT) that has a dead zone. The quantizer (QNT) provides a digital output sample that has a neutral value when the quantizer (QNT) receives an input signal whose amplitude is within the dead zone. A feedback path (DAC) within the analog-to-digital converter (ADC) provides a feedback action only in response to a digital output sample that has a value other than the neutral value.