Patents by Inventor PIXART IMAGING INC.

PIXART IMAGING INC. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130222346
    Abstract: There is provided an optical touch device including a light source, a light control unit, a light guide, an image sensor and a processing unit. The light control unit controls the light source to illuminate in different brightness values. The light guide has an incident surface, a touch surface and an ejection surface, wherein the light source emit incident light into the light guide through the incident surface, and a plurality of microstructures are formed inside of and/or on the ejection surface of the light guide to disperse the incident light toward the touch surface to become dispersed light. The image sensor receives reflected light ejecting from the ejection surface to generate image frames corresponding to the different brightness values of the light source. The processing unit calculates a differential image of the image frames to accordingly identify an operating state.
    Type: Application
    Filed: January 11, 2013
    Publication date: August 29, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130222611
    Abstract: An electronic apparatus includes a circuit system, a camera sensing circuit, and an object sensing circuit. The circuit system is utilized for controlling an operation of the electronic apparatus. The camera sensing circuit is coupled to the circuit system and utilized for sensing at least a portion of a portrait of a user. The object sensing circuit is coupled to the circuit system and utilized for sensing whether any object(s) is/are near to the electronic apparatus. The operation of the object sensing circuit is different from the operation of the camera sensing circuit. The camera sensing circuit is used for determining whether to notify the circuit system to switch from a first operation mode to a second operation mode. The object sensing circuit is used for determining whether to notify the circuit system to switch from the second operation mode to the first operation mode.
    Type: Application
    Filed: October 14, 2012
    Publication date: August 29, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130215085
    Abstract: A controlling method applied to a sensing system includes the following step. Whether a specific function is started is determined according to the amount of pixels of a first total pattern acquired by sensing a first object. In an embodiment of the present invention, the step of determining whether the specific function is started according to the amount of pixels of the total pattern is the step of determining whether the specific function is started according to the amount of pixels of the total pattern and the length of time to successively acquire the total pattern. Accordingly, it is more convenient for a user to use the sensing system having the said controlling method.
    Type: Application
    Filed: March 26, 2013
    Publication date: August 22, 2013
    Applicant: PixArt Imaging Inc.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130215257
    Abstract: There is provided an optical navigation device including at least one light source, an image sensor and a processing unit. The light source illuminates a work surface in a first brightness value and a second brightness value. The image sensor receives reflected light from the work surface and outputs a first image frame corresponding to the first brightness value and a second image frame corresponding to the second brightness value. The processing unit calculates a differential image of the first image frame and the second image frame and identifies an operating state according to the differential image.
    Type: Application
    Filed: November 26, 2012
    Publication date: August 22, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130194236
    Abstract: An optical input device integrates functions of fingerprint recognition, movement detection, and physiological analysis, and has a touch surface for receiving touch input of a finger. When a finger contacts the touch surface, the optical input device captures images from the touch surface, detects movement of the finger to generate a movement signal, extracts a fingerprint feature and a vessel blood changing feature from the images, analyzes and compares the fingerprint feature for identity recognition, and performs calculation according to the vessel blood changing feature to generate a physiological signal.
    Type: Application
    Filed: November 7, 2012
    Publication date: August 1, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130162592
    Abstract: A handwriting system includes a light source module, an image sensing apparatus and a processing circuit. The light source module is configured to provide a light source to illuminate an object on a plane. The image sensing apparatus is disposed on the plane and configured to capture an image of the object reflecting the light source. The processing circuit is electrically connected to the image sensing apparatus and configured to receive the image captured by the image sensing apparatus, analyze the shape of each of light spot(s) in the captured image and filter out the light spot(s) not qualified to the shape of the object. Another handwriting system and two handwriting system operation methods are also provided.
    Type: Application
    Filed: October 30, 2012
    Publication date: June 27, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: Pixart Imaging Inc.
  • Publication number: 20130162601
    Abstract: There is provided an optical touch system including at least one lighting unit, at least one image sensing module and a processing unit. The image sensing module is configured to capture light of a pointer and the lighting unit to generate a two-dimensional image and to convert entire of the two-dimensional image to a one-dimensional feature. The processing unit positions the pointer according to the one-dimensional feature.
    Type: Application
    Filed: October 23, 2012
    Publication date: June 27, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130155285
    Abstract: An interactive electronic device includes an image capture module, a response module and a processing module. The image capture module is configured to capture an image. The response module is configured to output a control signal according to a pattern contained in the image. The processing module is electrically connected to the image capture module and the response module and configured to drive the interactive electronic device according to the control signal.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 20, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130147765
    Abstract: An optical touch device includes a sensing area, at least a light source assembly and a light sensing component. The light source assembly is disposed beside the sensing area and includes a plurality of first point light sources configured to sequentially emit a first beam into the sensing area. The light sensing component has a field of view of the entire sensing area and is configured to sense the first beams. A light source assembly and a display module used in the optical touch device are also disclosed.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 13, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130147000
    Abstract: There is provided an optical mechanism including a substrate, an image sensor chip, a light source, a blocking member and a securing member. The image sensor chip is attached to the substrate and has an active area. The light source is attached to the substrate. The blocking member covers the image sensor chip and has an opening to expose at least the active area of the image sensor chip. The securing member fits on the blocking member to secure the blocking member to the substrate.
    Type: Application
    Filed: November 13, 2012
    Publication date: June 13, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130147001
    Abstract: There is provided an optical mechanism including a substrate, an image chip, a light source and a securing member. The image chip and the light source are attached to the substrate. The securing member is secured to the substrate and includes a first containing space for accommodating the light source, a second containing space for accommodating the image chip and a blocking region between the first containing space and the second containing space.
    Type: Application
    Filed: November 13, 2012
    Publication date: June 13, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130147909
    Abstract: A sensor array module with wide angle for creating a composite image includes a first image sensor, a second image sensor, a storage unit and a processor. The first image sensor is for capturing a first image. The second image sensor is for capturing a second image and has a relative spatial relationship with respective to the first image sensor. The storage unit stores at least one transformation matrix obtained according to the relative spatial relationship between the first and the second image sensors. The processor combines the first image and the second image by using the transformation matrix to create the composite image. The present invention also provides an image calibration method, an operation method and an application for a sensor array module with wide angle.
    Type: Application
    Filed: February 7, 2013
    Publication date: June 13, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC
  • Publication number: 20130141332
    Abstract: The present invention discloses a hybrid pointing device including an optical navigation module and a pointing module. The optical navigation module is configured to replace the conventional buttons of a convention pointing device, such as an optical mouse or a trackball mouse. The optical navigation module is configured to sense gestures of at least one object operated by a user to activate commands associated with particular programs running on the host. Since the optical navigation module is only configured to sense gestures of the object but not the movement of the hybrid pointing device relative to a surface, the resolution thereof is aimed to be sufficiently high enough for sensing gestures and no need to be relatively high.
    Type: Application
    Filed: January 30, 2013
    Publication date: June 6, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130141942
    Abstract: A linear light source module includes a mirror light guide component and a light emitting component. The mirror light guide component has a light emitting end, a surface having a mirror light reflecting layer formed thereon and a light incidence end. The light emitting component is configured for providing light to the light incidence end. The mirror light guide component is a light guide bar and is configured for converting the light from the first light emitting component into a linear light when the light emitting component is lighted, and the mirror light guide component is a mirror bar and is configured for providing a mirror function when the light emitting component is closed. An optical touch device with the linear light source module can avoid a blind zone and can be used as a dual-touch device or a multi-touch device.
    Type: Application
    Filed: January 29, 2013
    Publication date: June 6, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130129164
    Abstract: An identity recognition system and method capture an image of a subject that is projected by light of different wavelengths, extract various biometric informations from the image, analyze and compare for each of the biometric informations to generate a matching score, and determine an identity for the subject according to all of the matching scores. The system and method have higher recognition accuracy, lower false acceptance rate, lower false rejection rate, and higher flexibility.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 23, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130127714
    Abstract: There is provided a user interface system including a slave device and a master device. The slave device provides light of two different wavelengths to illuminate a finger surface, receives reflected light from the finger surface to generate a plurality of image frames, calculates and outputs an image data associated with a predetermined number of the image frames. The master device calculates a contact status and a displacement of the finger surface and a physiological characteristic of a user according to the image data.
    Type: Application
    Filed: October 1, 2012
    Publication date: May 23, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130132624
    Abstract: There is provided a communication system including a transmission interface, a master device and a slave device. The transmission interface includes a TR/ACK channel configured to transmit a trigger signal and an acknowledge signal and a DA channel configured to transmit a normal data or a simplified data. The master device sends the trigger signal via the TR/ACK channel before data transmission begins. The slave device sends the normal data or the simplified data to the master device via the DA channel after receiving the trigger signal.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 23, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.
  • Publication number: 20130127720
    Abstract: A transmission interface has a quick burst motion readout mechanism and is configured to be used between a master device and a slave device. The transmission interface includes a trigger channel configured to allow the master device to transmit a trigger signal to the slave device before transmission of data, and includes a data transmission channel provided to the slave device to transmit readable data to the master device after the slave device receives the trigger signal. The master and slave devices are adapted to a predetermined data transmission protocol by which the readable data can be directly transmitted and not accompanied by address data related to the readable data.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 23, 2013
    Applicant: Pixart Imaging Inc.
    Inventor: Pixart Imaging Inc.
  • Publication number: 20130120114
    Abstract: A biofeedback control system and method includes monitoring a physiological condition of a user to generate a sensing signal including a physiological information of the user, extracting a physiological variation information from the physiological information to generate a biofeedback signal, and generating a control signal based on the physiological variation information for controlling scenes, scenarios, background music or audio-visual effects of a program or a game. By this way, the biofeedback control system and method can trace a user's mood to automatically adjust a video output or an audio output of an electronic system where a program is playing or a game is running to enhance amusement.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 16, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PIXART IMAGING INC.
  • Publication number: 20130119441
    Abstract: A microelectronic device including a substrate, at least a semi-conductor element, an anti metal ion layer, a non-doping oxide layer and a MEMS structure is provided. The substrate has a CMOS circuit region and a MEMS region. The semi-conductor element is configured within the CMOS circuit region of the substrate. The anti metal ion layer is disposed within the CMOS circuit region of the substrate and covers the semi-conductor element. The non-doping oxide layer is disposed on the substrate within the MEMS region. The MEMS structure is partially suspended above the non-doping oxide layer. The present invention also provides a MEMS package structure and a fabricating method thereof.
    Type: Application
    Filed: December 26, 2012
    Publication date: May 16, 2013
    Applicant: PIXART IMAGING INC.
    Inventor: PixArt Imaging Inc.