Patents Assigned to AMLINK(SHANGHAI) LTD.
  • Patent number: 8481917
    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.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: July 9, 2013
    Assignees: Amlink (Shanghai) Ltd., Ampower Technology Co., Ltd.
    Inventors: Li-Mei Chen, Ming-Fu Chen, Yi-Hsun Lin
  • Publication number: 20100224771
    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.
    Type: Application
    Filed: November 4, 2009
    Publication date: September 9, 2010
    Applicants: AMLINK(SHANGHAI) LTD., AMPOWER TECHNOLOGY CO., LTD.
    Inventors: LI-MEI CHEN, MING-FU CHEN, YI-HSUN LIN
  • Publication number: 20100213871
    Abstract: A backlight driving system comprises a backlight driving circuit and a brightness regulation circuit. The brightness regulation circuit comprises a first regulation circuit to generate a first brightness regulation signal, a second regulation circuit to generate a second brightness regulation signal, a signal regulation circuit to combine the first and second brightness regulation signals into a combined brightness regulation signal according to a mode selection signal, and a driving control circuit to control the power delivered to the backlight from the backlight driving circuit according to the combined brightness regulation signal.
    Type: Application
    Filed: June 4, 2009
    Publication date: August 26, 2010
    Applicants: AMLINK(SHANGHAI) LTD., AMPOWER TECHNOLOGY CO., LTD.
    Inventors: WEI-HU CHEN, YI-HSUN LIN, YU-JU LIN, JING XIANG