Patents Assigned to PixArt Imaging Incorporation, R.O.C.
  • Publication number: 20140118251
    Abstract: The present invention discloses a method and apparatus for controlling an object movement on a screen. The method senses a first change in a position of a pointing device in a coordinate system to obtain a first displacement, and controls the object movement by a first displacement output ratio according to the first displacement. The method senses a second change in a position of the pointing device in a coordinate system to obtain a second displacement, and controls the object movement by a second displacement output ratio when a difference between a direction of the first displacement and a direction of the second displacement exceeds a first angle threshold, wherein the second displacement output ratio is lower than the first displacement output ratio.
    Type: Application
    Filed: September 19, 2013
    Publication date: May 1, 2014
    Applicant: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Chia-Cheun Liang, Yi-Hsien Ko
  • Patent number: 8664099
    Abstract: The present invention discloses a MEMS device with particles blocking function, and a method for making the MEMS device. The MEMS device comprises: a substrate on which is formed a MEMS device region; and a particles blocking layer deposited on the substrate.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: March 4, 2014
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Chuan Wei Wang, Sheng Ta Lee
  • Publication number: 20130341690
    Abstract: The present invention provides an ultra-violet light sensing device. The ultra-violet light sensing device includes a first conductivity type substrate, a second conductivity type region, and a first conductivity type high density region. The first conductivity type substrate includes a light incident surface. The second conductivity type region is disposed in the first conductivity type substrate and adjacent to the light incident surface. The first conductivity type high density region is disposed under the second conductivity type region. The present invention also provides another ultra-violet light sensing device, which further includes a first conductivity type high density shallow region which is sandwiched between the light incident surface and the second conductivity type region. Manufacturing methods for these ultra-violet light sensing devices are also disclosed in the present invention.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 26, 2013
    Applicant: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Han-Chi Liu, Huan-Kun Pan, Eiichi Okamoto
  • Publication number: 20130342442
    Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 26, 2013
    Applicant: PIXART IMAGING INCORPORATION, R.O.C.
    Inventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao
  • Patent number: 8575533
    Abstract: The present invention discloses a high dynamic range imager circuit and a method for reading high dynamic range image with an adaptive conversion gain. The high dynamic range image circuit includes a variable capacitor. The capacitance of the variable capacitor is adjusted according to sensed light intensity or by internal feedback control, to adaptively adjust the conversion gain of the high dynamic range image circuit as it reads a signal which relates to a pixel image sensed by an image sensor device. In each cycle, the signal can be read twice or more with different dynamic ranges, to enhance the accuracy of the signal.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: November 5, 2013
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Wen-Cheng Yen, Ching-Wei Chen, Chao-Chi Lee
  • Patent number: 8529773
    Abstract: The present invention discloses a method for making a MEMS device, comprising: providing a zero-layer substrate; forming a MEMS device region on the substrate, wherein the MEMS device region is provided with a first sacrificial region to separate a suspension structure of the MEMS device from another part of the MEMS device; removing the first sacrificial region by etching; and micromachining the zero-layer substrate.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: September 10, 2013
    Assignee: PixArt Imaging Incorporation R.O.C.
    Inventors: Chuan Wei Wang, Sheng Ta Lee
  • Patent number: 8524519
    Abstract: The present invention discloses a MEMS microphone device and its manufacturing method. The MEMS microphone device includes: a substrate including a first cavity; a MEMS device region above the substrate, wherein the MEMS device region includes a metal layer, a via layer, an insulating material region and a second cavity; a mask layer above the MEMS device region; a first lid having at least one opening communicating with the second cavity, the first lid being fixed above the mask layer; and a second lid fixed under the substrate.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: September 3, 2013
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Chuan-Wei Wang, Chih-Ming Sun
  • Patent number: 8519491
    Abstract: The present invention discloses a MEMS sensing device which comprises a substrate, a MEMS device region, a film, an adhesive layer, a cover, at least one opening, and a plurality of leads. The substrate has a first surface and a second surface opposite the first surface. The MEMS device region is on the first surface, and includes a chamber. The film is overlaid on the MEMS device region to seal the chamber as a sealed space. The cover is mounted on the MEMS device region and adhered by the adhesive layer. The opening is on the cover or the adhesive layer, allowing the pressure of the air outside the device to pressure the film. The leads are electrically connected to the MEMS device region, and extend to the second surface.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: August 27, 2013
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Chuan-Wei Wang, Ming-Han Tsai
  • Patent number: 8459115
    Abstract: The present invention discloses a MEMS (Micro-Electro-Mechanical System, MEMS) accelerator with enhanced structural strength. The MEMS accelerator is located on a substrate, and it includes: multiple springs, wherein each spring includes: an anchor, fixed on the substrate; an extensible part, which has a fixed end fixed on the anchor, and a free end floating above the substrate; a proof mass, connected to the free ends of the springs; and multiple in-plane sense electrodes, wherein the extensible part is folded back and forth to form a substantially polygon shape as a whole, in which the fixed end is located within the middle one third length of one side of the substantially polygon shape, and the free end is located within the middle one third length of an opposite side of the substantially polygon shape.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: June 11, 2013
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventor: Chuan-Wei Wang
  • Patent number: 8117919
    Abstract: The present invention discloses a micro-electro-mechanical system (MEMS) device, comprising: a substrate with at least one opening; and a membrane supported on the substrate, the membrane including at least two thin segments and a thick segment connected together, wherein the two thin segments are not at the same level, and the thick segment is formed by a plurality of layers including at least two metal layers and a via layer, such that the membrane has a curve cross section.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: February 21, 2012
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Chuan Wei Wang, Sheng Ta Lee
  • Patent number: 8071413
    Abstract: The present invention discloses an MEMS sensor and a method for making the MEMS sensor. The MEMS sensor according to the present invention includes: a substrate including an opening; a suspended structure located above the opening; and an upper structure, a portion of which is at least partially separated from a portion of the suspended structure; wherein the suspended structure and the upper structure are separated from each other by a step including metal etch.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: December 6, 2011
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventor: Chuan Wei Wang
  • Patent number: 7897506
    Abstract: The present invention discloses a MEMS device with particles blocking function, and a method for making the MEMS device. The MEMS device comprises: a substrate on which is formed a MEMS device region; and a particles blocking layer deposited on the substrate.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: March 1, 2011
    Assignee: PixArt Imaging Incorporation, R.O.C.
    Inventors: Chuan Wei Wang, Sheng Ta Lee