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:
Jul. 09, 2013
Filed:
Nov. 04, 2009
Li-mei Chen, Shanghai, CN;
Ming-fu Chen, Jhongli, TW;
Yi-hsun Lin, Jhongli, TW;
Amlink (Shanghai) Ltd., Shanghai, CN;
Ampower Technology Co., Ltd., Jhongli, Taoyuan County, TW;
Abstract
A system and a method for calibrating an ambient light sensor (ALS) are disclosed. The ALS, an adjustable resistor and a switch are located on a first surface of a printed circuit board (PCB), and the adjustable resistor and the switch are connected in series between an adjustable probe of the ALS and the ground. A resistor is connected between two pads located on a second surface of the PCB via two probes touching the pads. A controller connected to the PCB reads a light sensitivity of the ALS and calculates a calculated resistance value of the adjustable resistor by a formula 'detected light sensitivity/resistance value of the resistor=objective light sensitivity/resistance value of the adjustable resistor', wherein the objective light sensitivity and the resistance value of the resistor are given.