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:
Mar. 31, 2015
Filed:
Sep. 26, 2013
Applicant:
Cambridge Silicon Radio Limited, Cambridge, GB;
Inventor:
Hashem Zare-Hoseini, Cambridge, GB;
Assignee:
Cambridge Silicon Radio Limited, Cambridge, GB;
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03M 1/34 (2006.01); H03M 1/78 (2006.01); H03M 1/36 (2006.01); H03M 1/00 (2006.01);
U.S. Cl.
CPC ...
H03M 1/34 (2013.01); H03M 1/12 (2013.01); H03M 1/785 (2013.01); H03M 1/365 (2013.01); H03M 1/00 (2013.01);
Abstract
An analog-to-digital converter employs one or more reference ladders for generating reference voltages with which to compare the analog signal for quantization. Selected impedances of the reference ladder can be dynamically decoupled from the input signal in dependence on the value of the output signal in order to reduce headroom in the reference ladders, thus making possible accurate quantization in low-voltage applications.