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:
Jan. 06, 2015
Filed:
Feb. 15, 2013
Applicant:
Bruce R. Hancock, Altadena, CA (US);
Inventor:
Bruce R. Hancock, Altadena, CA (US);
Assignee:
California Institute of Technology, Pasadena, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/356 (2006.01); H03K 3/037 (2006.01); G01R 29/00 (2006.01); H03K 3/012 (2006.01); H03M 1/00 (2006.01); H03M 1/12 (2006.01); H03M 1/56 (2006.01);
U.S. Cl.
CPC ...
H03K 3/0375 (2013.01); G01R 29/00 (2013.01); H03K 3/012 (2013.01); H03K 3/356104 (2013.01); H03M 1/002 (2013.01); H03M 1/123 (2013.01); H03M 1/56 (2013.01);
Abstract
A latch circuit that uses two interoperating latches. The latch circuit has the beneficial feature that it switches only a single time during a measurement that uses a stair step or ramp function as an input signal in an analog to digital converter. This feature minimizes the amount of power that is consumed in the latch and also minimizes the amount of high frequency noise that is generated by the latch. An application using a plurality of such latch circuits in a parallel decoding ADC for use in an image sensor is given as an example.