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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.:

US 9429468 B1

PDFFull Text
Date of Patent:
Aug. 30, 2016

Filed:

Nov. 26, 2014

Apparatus with sensor functionality and power management and associated methods

Applicant:

Silicon Laboratories Inc., Austin, TX (US);

Inventors:

Timothy T. Rueger, Austin, TX (US);

William Hong, Austin, TX (US);

David Andreas, Austin, TX (US);

Assignee:

Silicon Laboratories Inc., Austin, TX (US);

Attorney:

Law Offices of Maximilian R. Peterson

Primary Examiner:

David J Makiya

Assistant Examiner:

Taeho Jo

Int. Cl.
CPC ...
G01J 5/02 (2006.01); G01J 1/42 (2006.01); G01S 3/78 (2006.01); G01S 3/783 (2006.01); G01S 7/481 (2006.01); G01S 7/491 (2006.01); G01S 7/497 (2006.01); G01S 11/12 (2006.01); G01S 17/02 (2006.01); G01S 17/46 (2006.01); G01V 8/20 (2006.01); G01J 1/44 (2006.01); G01S 17/08 (2006.01);
U.S. Cl.
CPC ...
G01J 1/4204 (2013.01); G01J 1/44 (2013.01); G01S 3/7803 (2013.01); G01S 3/7835 (2013.01); G01S 7/4811 (2013.01); G01S 7/497 (2013.01); G01S 7/4913 (2013.01); G01S 7/4972 (2013.01); G01S 11/12 (2013.01); G01S 17/026 (2013.01); G01S 17/08 (2013.01); G01S 17/46 (2013.01); G01V 8/20 (2013.01);
Abstract

In an exemplary embodiment, an apparatus includes a sensor integrated circuit (IC) that is adapted for ambient light sensing (ALS) and/or proximity detection. The sensor integrated circuit (IC) includes an integrated analog-to-digital converter (ADC) that is adapted to convert at least one signal related to ambient light sensing (ALS) and/or proximity detection to at least one digital signal, and an integrated light emitting diode (LED) driver that is adapted to drive at least one LED. The sensor IC also includes an integrated power management unit (PMU) that is adapted to reduce power dissipation of the sensor IC by running at a low duty cycle the integrated LED driver and the integrated ADC.

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