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.

Date of Patent:
Jul. 16, 2019

Filed:

Jul. 31, 2018
Applicant:

Rambus Inc., Sunnyvale, CA (US);

Inventors:

Michael Guidash, Rochester, NY (US);

Jay Endsley, Santa Clara, CA (US);

John Ladd, Santa Clara, CA (US);

Thomas Vogelsang, Mountain View, CA (US);

Craig M. Smith, Spencerport, NY (US);

Assignee:

Rambus Inc., Sunnyvale, CA (US);

Attorney:
Int. Cl.
CPC ...
H04N 5/374 (2011.01); H04N 5/378 (2011.01); H04N 5/376 (2011.01); H04N 5/365 (2011.01); H04N 5/357 (2011.01); H04N 5/355 (2011.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H04N 5/374 (2013.01); H04N 5/3577 (2013.01); H04N 5/35554 (2013.01); H04N 5/365 (2013.01); H04N 5/378 (2013.01); H04N 5/3765 (2013.01); H01L 27/14643 (2013.01);
Abstract

Photocharge is accumulated within an image sensor pixel array during a first exposure interval. At conclusion of the first exposure interval, accumulated photocharge is discarded from a first subset of the pixels to emulate absence of incident light with respect to those pixels. After discarding accumulated photocharge from the first subset of the pixels, first and second readout signals are generated, the first readout signals corresponding to respective pixels not included in the first subset and indicative of photocharge accumulated therein, and the second readout signals corresponding to respective pixels included in the first subset.


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