Optical Detector Patents (Class 345/166)
  • Patent number: 9817487
    Abstract: This is directed to animating transitions in a user interface as the orientation of the user interface changes. An electronic device can display a user interface in any suitable orientation, including for example in portrait and landscape modes (e.g., based on the orientation of the display). To provide a resource efficient and aesthetically pleasing transition, the electronic device can pre-render the interface in the final orientation, and define an animation by cross-fading the interface between the initial and final interfaces. In some embodiments, the electronic device can identify distinct regions of the interface, and define separate animations for each region. The separate animations can be overlaid and displayed simultaneously to provide a uniform animated transition between the initial and final interfaces.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: November 14, 2017
    Assignee: APPLE INC.
    Inventors: Joshua Shaffer, Bas Ording
  • Patent number: 9733727
    Abstract: A surface navigation device for a computer or similar graphical display and methods for implementing its operation. The device moves sensitively and precisely over a surface such as a desktop and operator generated changes in its position relative to targetable objects on that desktop arranged about the circumference of a pseudo-circle are described in terms of a lumped motion vector. The motion vector is decomposed into a translational and rotational part by metrical and topological methods. The device communicates each part of the decomposed motion quickly and accurately to a computer screen or other display where it may implement the motion of a cursor or it may be used to manipulate objects having a 3D character by providing them with translational and rotational motions. The rotational parameter generated by the device may also be used independently to trigger some computer action.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: August 15, 2017
    Inventor: Wen-Chieh Geoffrey Lee
  • Patent number: 9727160
    Abstract: There is provided a displacement detection device including a light source, an image sensor and a processing unit. The light source provides light to a finger with a light source parameter. The image sensor receives reflected light from the finger, outputs valid images when the light source is being turned on and outputs dark images when the light source is being turned off. The processing unit determines a contact status according to one of the dark images and one of the valid images, and calculates a displacement according to two of the valid images to accordingly adjust the light source parameter.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: August 8, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Ren-Hau Gu, Yu-Hao Huang, Hsin-Chia Chen, Yen-Min Chang
  • Patent number: 9658701
    Abstract: Embodiments of the invention are directed to input devices configured for use with computing devices. The present invention relates to input devices configured with a plurality of sensors configured to determine the displacement and position of the input device. Tracking of the input device may be switched from an optical sensor to an inertial sensor based on the speed of movement of the input device or based on the input device detecting that loss of tracking has occurred. In some embodiments, a gyroscope may be configured to modify data from the inertial sensor module to correct for fictitious accelerations generated when the input device is rotated.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: May 23, 2017
    Assignee: Logitech Europe S.A.
    Inventors: Arash Salarian, Nicolas Chauvin, David Tarongi Vanrell
  • Patent number: 9635162
    Abstract: A mobile communications device includes an antenna, a navigation pad and a signal processor. The antenna, navigation pad, and signal processor cooperate to encode and transmit motion signals from the navigation pad to a computer so that the mobile communications device functions as a pointing device for the computer.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: April 25, 2017
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventor: Jeffrey Raynor
  • Patent number: 9516236
    Abstract: With an image processing method, in response to a control signal from an external device, main imaging is performed by using a predetermined main imaging parameter, main image processing is performed on the acquired image data, a result is sent to a control device, and, during the main image processing, sub-imaging is performed by using at least one sub-imaging parameter, which is different from the main imaging parameter. Sub-image processing is performed on the image data acquired by the sub-imaging, and the result is extracted. If the extracted sub-image processing result falls within a predetermined processing result criteria range, updating is performed by setting, as a new main imaging parameter, the sub-imaging parameter that has generated the processing result.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: December 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Genki Cho
  • Patent number: 9444987
    Abstract: An interactive imaging system includes an image system and a remote controller. The image system includes at least one reference beacon, a receiving unit and a host. The at least one reference beacon emits light in an emission pattern. The receiving unit is configured to receive a packet data. The host controls an enable time of the at least one reference beacon according to the packet data. The remote controller includes an image sensor and a transmission unit. The image sensor captures the light emitted from the at least one reference beacon at a sampling period. The transmission unit sends the packet data corresponding to the sampling period of the image sensor.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: September 13, 2016
    Assignee: PIXART IMAGING INC
    Inventors: Chia-Cheun Liang, Chao-Chien Huang, Chi-Yang Huang, Wen-Yu Yang, Hung-Yu Lee
  • Patent number: 9367148
    Abstract: A method for selectively switching a frame rate of a mouse includes: setting a plurality of acceleration thresholds respectively corresponding to a plurality of frame rates at which the mouse is operated; operating the mouse at a first frame rate of the plurality of frame rates; determining a velocity of the mouse according to a difference between a first frame captured by the mouse at the first frame rate and a second frame following the first frame captured by the mouse at the first frame rate; determining an acceleration of the mouse between the first captured frame and second captured frame according to the velocity of the first frame, the velocity of the second frame, and the frame rate; comparing the acceleration with the plurality of thresholds; and directly switching the frame rate of the mouse to a frame rate which corresponds to the determined threshold.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: June 14, 2016
    Assignee: PixArt Imaging (Penang) SDN. BHD.
    Inventors: Joon Chok Lee, Kevin Len Li Lim
  • Patent number: 9369751
    Abstract: A hand-held pointing device includes a main body, a processing circuit, a light emitting device and two image sensing devices. The main body has a first surface and a second surface for lying on an operating surface. The two image sensing devices are disposed in the main body and configured to sense first and second images through first and second transparent areas thereof, respectively. The light emitting device, disposed in the main body, is configured to emit a light source through the second transparent area. The processing circuit is configured to determine and operate the hand-held pointing device in a remote controller mode or a mouse mode according to whether the first image contains an image of a reference light source and/or the second image contains an image of the operating surface reflecting the light source. An operation for a hand-held pointing device is also provided.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: June 14, 2016
    Assignee: PIXART IMAGING INC.
    Inventors: Chia-Cheun Liang, Chi-Yang Huang, Chih-Yen Wu, Wen-Yu Yang
  • Patent number: 9354717
    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: Grant
    Filed: November 26, 2012
    Date of Patent: May 31, 2016
    Assignee: PIXART IMAGING INC.
    Inventors: Yu-Hao Huang, Ren-Hau Gu, Hsin-Chia Chen, Ming-Tsan Kao
  • Patent number: 9342158
    Abstract: A method for making a lower frame rate of an optical navigation sensor mimic a higher frame rate of the optical navigation sensor includes: receiving a motion delta of the optical navigation sensor at the lower frame rate; dividing the motion delta into a smaller number of parts; dividing a time period of the lower frame rate to generate a time threshold which is shorter than the time period of the lower frame rate; receiving a clock signal for updating a counter; and outputting a first part of the delta when the counter reaches the time threshold.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: May 17, 2016
    Assignee: PixArt Imaging (Penang) SDN. BHD.
    Inventors: Zi Hao Tan, Joon Chok Lee
  • Patent number: 9310897
    Abstract: There is provided a displacement detection device including a light source, an image sensor and a control and processing unit. The light source is configured to illuminate a work surface. The image sensor is configured to receive reflected light from the work surface. The control and processing unit is configured to adjust a block size of comparison blocks according to a quality parameter.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: April 12, 2016
    Assignee: Pixart Imaging Inc.
    Inventors: Chun-Wei Chen, Ren-Hau Gu, Shih-Wei Kuo
  • Patent number: 9310984
    Abstract: A method is provided of controlling a 3D individual object on a map by displaying a 3D map image including a plurality of 3D individual objects on a first display area, selecting at least one 3D individual object, obtaining detailed information of the selected 3D individual object from a memory and displaying the detailed information.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: April 12, 2016
    Assignee: LG Electronics Inc.
    Inventor: Jong-Hwan Kim
  • Patent number: 9297750
    Abstract: In some embodiments, an apparatus includes a housing and an image sensor that is coupled to the housing. The apparatus also includes a non-imaging optical system coupled to the housing that can output light to a surface and produce a scattered light component and a specular reflected light component. The image sensor and the non-imaging optical system are collectively configured in such a manner that during operation, the image sensor receives from a surface (1) at least a portion of the scattered light component and not the specular reflected light component or (2) at least a portion of the scattered light component having a magnitude and at least a portion of the specular reflective light component having a magnitude less than the magnitude of the portion of the scattered light component.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 29, 2016
    Assignee: FiftyThree, Inc.
    Inventors: Thomas C. Arends, Nicholas E. Bratt, John K. Ikeda, Jonathan R. Harris, Georg F. Petschnigg
  • Patent number: 9285867
    Abstract: A hand-held device with a sensor for providing a signal indicative of a position of the hand-held device relative to an object surface enables power to the sensor at a first time interval when the hand-held device is indicated to be in a position that is stationary and adjacent relative to the object surface, enables power to the sensor at a second time interval shorter than the first time interval when the hand-held device is indicated to be in a position that is moving and adjacent relative to the object surface, and enables power to the sensor at a third time interval when the hand-held device is determined to be in a position that is removed relative to the object surface.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: March 15, 2016
    Assignee: UNIVERSAL ELECTRONICS INC.
    Inventors: Stephen Brian Gates, Jeremy K. Black
  • Patent number: 9280213
    Abstract: An optical navigation chip cooperated with a light source for being used in a mouse is provided. The mouse transmits a mouse signal to a computer for navigation control. The optical navigation chip includes an optical sensing array and a circuitry. The optical sensing array is utilized for receiving a reflected light from a surface indicating features of the surface for generating a digital frame corresponding to intensity variation caused by the reflected light. The circuitry is coupled to the optical sensing array, and utilized for generating a digital displacement signal by monitoring the intensity variation of two different digital frames, wherein the two digital frames are captured by the optical sensing array at two different times. Additionally, the mouse suspends the mouse signal to the computer if the intensity variation is flat.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: March 8, 2016
    Assignee: PixArt Imaging Inc.
    Inventors: Gary B. Gordon, Derek L. Knee, Rajeev Badyal, Jason T. Hartlove
  • Patent number: 9274617
    Abstract: An optical navigation apparatus, an optical navigation method, and a non-transitory computer readable medium thereof are provided. The optical navigation apparatus includes a light source unit, an image sensing unit, and a processing unit. The processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit provides a beam of light. The image sensing unit captures a first image at a first time instant when the light is projected onto a reflection surface. The processing unit calculates an image quality index of the first image and determines a matching block size between the first image and a second image according to the image quality index.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: March 1, 2016
    Assignee: PIXART IMAGING INC
    Inventors: Yu-Ju Lee, Tzu-Yu Chen
  • Patent number: 9274614
    Abstract: An optical mouse apparatus includes a light source unit, a sensing unit, and a processing unit. The light source unit is arranged for generating and emitting an optical signal, wherein the optical signal is emitted upon a surface, and then reflected to form an optical reflected signal. The sensing unit is arranged for generating a sensed image output according to the optical reflected signal, wherein the sensed image output is utilized for estimating an image displacement of the optical mouse apparatus. The processing unit is coupled to the light source unit and the sensing unit, and arranged for controlling the light source unit to emit the optical signal and determining a operation status of the optical mouse apparatus according to an image variation of at least a partial region of each of consecutive images of the sensed image output.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: March 1, 2016
    Assignee: PixArt Imaging Inc.
    Inventors: Chun-Wei Chen, Yen-Chang Wang
  • Patent number: 9250103
    Abstract: An optical rotary encoder includes a light source, a rotation body including a reflecting diffraction grating, a light receiving unit including a plurality of light receiving elements, a synthetic unit that combines output signals output from the plurality of light receiving elements to obtain a signal, which represents a fringe pattern component at a certain cycle, included in a light reflected by the reflecting diffraction grating and, and a detection unit that detects a direction based on a first signal and a second signal, the direction being a direction in which a distance between the rotation body and the light receiving unit varies, the first signal and the second signal being obtained by the synthetic unit, the first signal indicating a fringe pattern component having a cycle shorter than the certain cycle, the second signal indicating a fringe pattern component having a cycle longer than the certain cycle.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: February 2, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Eiji Takada, Taizan Kobayashi, Katsuki Shirai
  • Patent number: 9201543
    Abstract: An optical navigating apparatus, comprising: a displacement detecting apparatus, for determining if the optical navigating apparatus has displacement relative to an target, and for generating a displacement signal according to the displacement; and a touch control panel, for detecting a touch control operation of an user, wherein the touch control panel has a sampling rate and changes the sampling rate according to a control signal, wherein the sampling rate can be adjusted according to the displacement signal, where the sampling rate correspondingly decreases when the displacement signal indicates the displacement increases.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: December 1, 2015
    Assignee: PixArt Imaging Inc.
    Inventors: Chun-Chen Chen, Hsin-Chia Chen, Yen-Min Chang
  • Patent number: 9146626
    Abstract: Devices, systems, methods, and other embodiments associated with an optical movement sensor are described. In one embodiment, an optical system includes an image sensor configured to track a position of the optical system with respect to a surface. A light folding device optically folds light received from the surface by at least a first mirror that increases a focal length of the light. The system also includes a lens configured to optically focus the light from the light folding device onto the image sensor.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: September 29, 2015
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventor: James Mealy
  • Publication number: 20150138093
    Abstract: Features of a mouse configured to be used as an user interface with a computing device are described. The mouse may include an arm component, a body component coupled to a first part of the arm component, and a wheel component coupled to a second part of the arm component.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Andrew Brian Young, Robert Ian Hall
  • Patent number: 9035881
    Abstract: An electronic apparatus that can utilize a first report rate to generate a first report rate output signal according to an output signal or can utilize a second report rate smaller than the first report rate to generate a second report rate output signal according to the output signal. The electronic apparatus comprises: a first signal smoothing apparatus; a second signal smoothing apparatus having a smooth ability smaller than the first signal smoothing apparatus and a processing unit, for selecting the first signal smoothing apparatus to process the first report rate output signal when the electronic apparatus utilizes the first report rate to generate signal, and for selecting the second signal smoothing apparatus to process the second report rate output signal when the electronic apparatus utilizes the second report rate to generate signal.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: May 19, 2015
    Assignee: PixArt Imaging Inc.
    Inventors: Chun-Wei Chen, Yen-Chang Wang
  • Patent number: 9035885
    Abstract: An optical input apparatus is provided and includes an input device for providing data and control signals to a computer; and at least one object sensing module disposed on a top of the input device and each including an optical sensor and a light source. The light source is capable of emitting light upward divergently to create a virtual sensing space above.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 19, 2015
    Assignee: Sunrex Technology Corp.
    Inventors: Huo-Lu Tsai, Yung-Lung Liu
  • Publication number: 20150130720
    Abstract: The present disclosure provides a method, a video system, and a system for realizing a simple air mouse. The method includes: a video terminal obtaining current position parameters of an air mouse, wherein the current position parameters comprise a deflection angle and a deflection direction of the air mouse with respect to an originally-calibrated coordinate position; and determining a position of a cursor on the video terminal according to the current position parameters and a preset scale parameter. By presetting reference points in the air mouse, the present disclosure obtains the deflection angle and the deflection direction of the air mouse with respect to the original position by the camera device based on the above reference points, and determines the position of the cursor on the video terminal according to the deflection angle and the deflection direction and the preset scale parameter.
    Type: Application
    Filed: September 11, 2012
    Publication date: May 14, 2015
    Applicant: SHENZHEN TCL NEW TECHNOLOGY CO., LTD.
    Inventor: Erik Zhao
  • Patent number: 9029756
    Abstract: The present invention discloses an optical displacement detection apparatus and an optical displacement detection method. The optical displacement detection apparatus comprises: at least two light sources for projecting light of different spectrums to a surface under detection, respectively; an image capturing device for receiving light reflected from the surface under detection and converting it into electronic signals; and a processing control circuit for calculating displacement according to the electronic signals from the image capturing device, wherein the processing control circuit is capable of switching between the light sources.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: May 12, 2015
    Assignee: Pixart Imaging Incorporation, R.O.C.
    Inventors: Hui-Hsuan Chen, Hsin-Chia Chen, Han-Chi Liu, Ching-Lin Chung, Yen-Min Chang
  • Patent number: 9025712
    Abstract: A clock frequency adjusting system is disclosed. The clock frequency adjusting system includes a sensing clock generating unit, a frequency-dividing unit and a controller. The frequency-dividing unit makes frequency of the sensing clock signal be divided by a frequency-dividing modulus and then outputs a clock calibration signal. The controller includes a period counter and a frequency adjusting unit. The period counter samples the clock calibration signal through the external clock signal so as to acquire a second count value. The frequency adjusting unit calculates a frequency difference data between the clock calibration signal and the predetermined clock signal according to the first count value and the second count value, and determines a number of adjustment according to the frequency difference data and a step adjusting frequency so as to output a clock adjusting signal to the sensing clock unit to adjust frequency of the sensing clock signal.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 5, 2015
    Assignee: Pixart Imaging Inc.
    Inventor: Kevin Len-Li Lim
  • Patent number: 9019204
    Abstract: An electronic apparatus and a control method are provided that are capable of reducing power consumption. The electronic apparatus having a normal mode in which first electric power is consumed and a power-saving mode in which second electric power lower than the first electric power is consumed includes a first sensor and a second sensor whose power consumption is lower than that of the first sensor. In the power-saving mode, supply of power to the first sensor is restricted, the second sensor is set to the power-saving mode, a trigger for restoring the power-saving mode to the normal mode is detected by using the second sensor set to the power-saving mode, and the power-saving mode is restored to the normal mode based on the detected trigger.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: April 28, 2015
    Assignee: Sony Corporation
    Inventors: Hidetoshi Kabasawa, Kenji Hachisu, Kazuyuki Yamamato, Takashi Masuda
  • Patent number: 9019207
    Abstract: An apparatus includes a keyboard and a trackpad, where a spacebar for the keyboard is integrated as a part of the trackpad.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 28, 2015
    Assignee: Google Inc.
    Inventors: William Hamburgen, Frank Hislop
  • Patent number: 9013407
    Abstract: A power-saving sensing module includes a light source, first and second sensors, first and second detection units, and a controller. The first sensor detects a first image corresponding to a working plane in response to at least a part of the light ray from the light source to generate a first sensing signal. The first detection unit generates a displacement signal in response to the first sensing signal. The second sensor detects a second image corresponding to an object in response to at least a part of light ray to generate a second sensing signal. The second detection unit generates a touch signal corresponding to the object in response to the second sensing signal. The controller outputs a control signal in response to the touch signal. The first detection unit operates at a dormant state or a sensing state in response to the control signal.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: April 21, 2015
    Assignee: PixArt Imaging Inc.
    Inventors: Ren-Hau Gu, Ming-Tsan Kao, Sen-Huang Huang
  • Publication number: 20150103009
    Abstract: An image sensing apparatus comprises at least one sensing pixel and a control circuit. The sensing pixel comprises: a charge storing device; a light sensing device, for respectively generating photoelectrons with a first, second amount in a first, second mode; and a switch device, for determining an amount that the photoelectron can be transmitted to the charge storing device according to a control voltage. The control voltage generates the control voltage to control the amount that the photoelectrons can be transmitted to the charge storing device to be a first charge amount in a first mode and to be a second charge amount in a second mode. The first, second charge amounts are smaller than a maximum charge storing amount for the charge storing device.
    Type: Application
    Filed: June 10, 2014
    Publication date: April 16, 2015
    Inventors: En-Feng Hsu, Ching-Wei Chen, Chien-Sheng Chen, Shuen-Yin Bai, Chien-Jung Chou
  • Patent number: 9007305
    Abstract: An optical navigation system and method of estimating motion uses a plate with an aperture, a photodetector and an optical system for optical lift detection. The optical system is configured to direct an input light to a target surface through the aperture of the plate and to direct the input light reflected from the target surface and transmitted back through the aperture of the plate toward the photodetector to be detected by the photodetector for lift detection.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: April 14, 2015
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Yat Kheng Leong, Sai Mun Lee, Thineshwaran G. Krishnan
  • Patent number: 9007352
    Abstract: Embodiments of the present invention provide a digital camera mount assembly for a portable computer 200 having a display panel 202. According to one embodiment, the camera mount assembly 206 includes a mount plate having at least one aperture and formed within a front surface 203 of the display panel. A tiltable camera lens is positioned within the aperture of the camera housing. In particular, the camera lens is configured such that when the camera lens is tilted at a maximum, the camera lens does not protrude outside the front surface of the display panel.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: April 14, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Mark David Senatori
  • Publication number: 20150097779
    Abstract: A method of adjusting sampling precision of a navigation device is disclosed in the present invention. The sampling precision represents counts per inch (CPI) or dots per inch (DPI) of the navigation device. The method includes determining a predetermined mode of the navigation device, obtaining resolution of a display, and adjusting the sampling precision according to the resolution and the predetermined mode, so that the sampling precision of the navigation device can be accordingly increased and decreased due to variation of the resolution.
    Type: Application
    Filed: February 5, 2014
    Publication date: April 9, 2015
    Applicant: PixArt Imaging Inc.
    Inventors: Yen-Chang Wang, Chun-Wei Chen, Yen-Min Chang
  • Publication number: 20150097778
    Abstract: An optical sensing module includes an image sensing element having an optical sensor array and at least a control unit. A light emitting chip provides a coherent light. The light is reflected from an outside surface and to be received by the optical sensor array. A substrate is mounted with the image sensing element and the light emitting chip. A cover is mounted on the substrate to cover the image sensing element and the light emitting chip, and the cover includes a first light-transmitting portion on the transmission path of the light. The optical sensing module is disposed on a base having a second light-transmitting portion on the transmission path of the light.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Inventors: YUN-SHAN CHANG, DA-WEI LIN
  • Patent number: 9002058
    Abstract: An imaging system (100) includes a housing (101). A control circuit (224) disposed within the housing (101). A projector (102) is disposed within the housing (101) and is operable with the control circuit (224). The projector (102) is configured to create images (104) with an image cone (106). A gesture recognition device (103) is disposed within the housing (101) and is operable with the control circuit (224). The gesture recognition device (103) is configured to detect gestures (107) in a gesture recognition cone (108). The projector (102) and the gesture recognition device (103) can be arranged within the housing (101) such that the image cone (106) and the gesture recognition cone (108) exit the housing (101) without overlap.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: April 7, 2015
    Assignee: Microvision, Inc.
    Inventors: P. Selvan Viswanathan, Mark O. Freeman, Sridhar Madhavan, George Thomas Valliath, Jari Honkanen
  • Patent number: 8994658
    Abstract: To provide an input apparatus, a control apparatus, a control system, and a control method that are capable of improving an operational feeling when a user uses the input apparatus to input an operation signal via an operation section. An MPU (19) of an input apparatus (1) stops generating or transmitting a movement command corresponding to a displacement amount of a pointer on a screen, during a predetermined timer-operating time period since a cancel of an input of an operation signal (Step 309) made by a user using an operation button. Alternatively, it is also possible for the MPU (19) to continue outputting the movement command with the displacement amount of the pointer on the screen set to 0 during the predetermined time period (Step 311). By such processing, a movement of the pointer on the screen is regulated even when a casing of the input apparatus is moved when the user presses and releases the operation button and the movement is detected by a sensor unit.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: March 31, 2015
    Assignee: Sony Corporation
    Inventors: Kazuyuki Yamamoto, Toshio Mamiya, Hidetoshi Kabasawa, Katsuhiko Yamada, Takashi Yamada, Hideaki Kumagai
  • Patent number: 8994693
    Abstract: A locating method for an optical touch device to calculate a position of a light blocking object is provided. The optical touch device includes a number of image detecting components. Each of the image detecting components includes a number of pixels arranged in a straight line. In the locating method, the pixels of each of the image detecting components are at least divided into a first group and a second group. When the first group detects a dark point caused by the light blocking object, the position of the dark point is calculated using a first calculating method. When the second group detects the dark point, the position of the dark point is calculated using a second calculating method. The locating method can determine the position of the light blocking object accurately. An optical touch device that is suitable for using the locating method is also provided.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: March 31, 2015
    Assignee: Pixart Imaging Inc.
    Inventors: Ming-Tsan Kao, Hsin-Chi Cheng, Teng-Wei Hsu
  • Publication number: 20150084867
    Abstract: The invention provides a device and a method for frequent verifications of the identity of a user performed during a long session of client-server communication by secure exchange of keys between the client and the server. The device is a computer mouse with embedded camera and embedded microphone. The camera is used to make pictures of a user's palm; the microphone is used to register a sound of user's pulse. The method has zero privacy leakage because the user is represented at the server by an array of random numbers, which have nothing to do with his biometric data. The security of the system is difficult to break because the exchange keys are different on each request/response.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 26, 2015
    Inventors: Victor Gorelik, Alexander Fursenko
  • Patent number: 8988395
    Abstract: An architecture is described that can utilize photo-sensors embedded in a substantially transparent layer of a UI display for tracking objects that approach or hover over the UI display. The photo-sensors can be configured to detect light of certain wavelengths (e.g., visible light, infrared light) that are propagated toward the UI display, while ignoring light emanating from the UI display when displaying content. Accordingly, by examining various characteristics of the incoming light such as intensity, the architecture can identify a location of a shadow incident upon the display caused by an approaching or hovering selector object blocking portions of incoming light. Additionally or alternatively, the architecture can identify a location of higher intensity for light emanating from the selector object.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: March 24, 2015
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Armstrong Soo, Bernard Ku, Jeffrey Brandt
  • Patent number: 8983538
    Abstract: A method and apparatus receive first input through a touch screen and communicate over a cellular network responsive to the first input. The method and apparatus receive second input through the touch screen and use the second input to control, through a wireless network other than the cellular network, an image displayed on a screen of a second device.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: March 17, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventor: Browley Xiao
  • Patent number: 8982052
    Abstract: An assembly is adapted for being employed in an optical navigation device, such as that used on a computer or mobile communications device. The assembly includes a housing device and an optical device, wherein the housing device includes a receiving section for receiving the optical device. The receiving section has a first and a second opening. The housing device has first and second vertical registration features for aligning the optical device with the housing device. The first and second vertical registration features are spatially associated with the first and second opening respectively.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: March 17, 2015
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventors: Mathieu Reigneau, Colin Campbell
  • Patent number: 8970477
    Abstract: A exemplary key assembly for a handheld device includes one or more L-shaped key structures each having a first member configured to receive an input keystroke and a second member substantially orthogonal to the first member; and a frame configured to receive the one or more L-shaped key structures, the frame having a wall aligned with the second member of the key structure, with the wall further comprising a switch for each of the one or more L-shaped key structures associated with an inner surface of the wall, wherein each switch is associated with an actuator associated with the second member of the corresponding key structure such that depression of a given key structure causes the actuator of the second member of the key structure to engage the switch of the wall.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: March 3, 2015
    Assignee: BlackBerry Limited
    Inventors: Norman Miner Ladouceur, Jason Tyler Griffin, Martin Riddiford, Daniel Jordan Kayser, Tracy Christina Sharp, Rachael Elizabeth Roberts
  • Patent number: 8970478
    Abstract: An apparatus comprising a sensor configured to detect the position and orientation of a user viewpoint with respect to an auto-stereoscopic display; a processor configured to determine a surface viewable from the user viewpoint of at least one three dimensional object; and an image generator configured to generate a left and right eye image for display on the auto-stereoscopic display dependent on the surface viewable from the user viewpoint.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: March 3, 2015
    Assignee: Nokia Corporation
    Inventor: Panu Marten Jesper Johansson
  • Patent number: 8970490
    Abstract: The invention relates to an electronic device, which includes a display component, in which at least one controllable element is arranged to be visualized in its entirety, the control of which element is arranged to be based on determining a change (M) relating to the attitude or position of the device and camera means arranged to form image frames (IMAGE1, IMAGE2), and in which, in order to control the functions of the device, such as, for example, to control the element, the change is arranged to be determined, using optical data-flow algorithms, from the image frames formed by the camera means, which image frames are arranged to be compared to each other in a set manner, and on the basis of which comparison the said change is arranged to be determined. The image frames are arranged to be segmented in a selected manner, from which at least one movement vector (SR, SL, SUp, SDown) determining the said change is arranged to be determined from at least some of the segments (SEGMENT1, SEGMENT2).
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: March 3, 2015
    Assignee: Core Wireless Licensing S.A.R.L.
    Inventors: Mikko Blomqvist, Tommi Laine, Miia Onkalo
  • Publication number: 20150049022
    Abstract: A computer system that includes a data-processing unit, a touch-sensitive, position-resolving input surface in data communication with the data-processing unit, and a freely movable input device, by which the input surface is to be touched for the purpose of inputting into the data-processing unit. The freely movable input device is a computer mouse, which is in data communication with the data-processing unit. With comparatively low sensor complexity, inter alia, both the absolute position of the computer mouse and also subtle position changes of the computer mouse can therefore be very easily detected by the data-processing unit.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 19, 2015
    Inventor: Robert Koeppe
  • Patent number: 8957849
    Abstract: An optical scrolling module includes a prism, a light source, an image sensor and a first condenser. The prism is disposed at an opening of an upper shell of a mouse and has a light incident surface, a reflective surface, a contact surface and a light emitting surface. The contact and light incident surfaces are respectively connected between the reflective and light emitting surfaces. The contact surface is exposed by the opening. A light beam from the light source is transmitted to the contact surface via the light incident and reflective surfaces. When an object with a pattern structure puts on the contact surface, the light beam is scattered and a portion of the light beam is transmitted to the image sensor via the first condenser. When the object is removed from the contact surface, the light beam is reflected to the light emitting surface by the contact surface.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: February 17, 2015
    Assignee: Pixart Imaging Inc.
    Inventors: Hui-Hsuan Chen, Hung-Ching Lai, Tien-Chia Liu
  • Publication number: 20150042566
    Abstract: A bipolar junction transistor (BJT) pixel circuit, an image sensor and a driving method thereof are provided. The BJT pixel circuit includes a BJT, a photodetector, a feedback amplifier circuit, a shutter circuit, and a current generating unit. The photodetector generates a first base current to a base of the BJT responsive to a light incident on the photodetector. The feedback amplifier circuit is operative to increase an emitter voltage of the BJT according to the light intensity. The shutter circuit controls an exposure time of the photodetector according to a shutter signal. The current generating unit generates the second pulsed base current responsive to a trigger signal causing a base voltage of the BJT to drop while the feedback amplifier circuit operates to increase the emitter voltage of the BJT so as to build-up the base-emitter voltage to a predetermined voltage level when a light source turns on.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 12, 2015
    Applicant: PIXART IMAGING INC.
    Inventor: WOOI KIP LIM
  • Publication number: 20150035755
    Abstract: An optical navigation chip cooperated with a light source for being used in a mouse is provided. The mouse transmits a mouse signal to a computer for navigation control. The optical navigation chip includes an optical sensing array and a circuitry. The optical sensing array is utilized for receiving a reflected light from a surface indicating features of the surface for generating a digital frame corresponding to intensity variation caused by the reflected light. The circuitry is coupled to the optical sensing array, and utilized for generating a digital displacement signal by monitoring the intensity variation of two different digital frames, wherein the two digital frames are captured by the optical sensing array at two different times. Additionally, the mouse suspends the mouse signal to the computer if the intensity variation is flat.
    Type: Application
    Filed: October 20, 2014
    Publication date: February 5, 2015
    Inventors: Gary B. Gordon, Derek L. Knee, Rajeev Badyal, Jason T. Hartlove
  • Publication number: 20150035754
    Abstract: A clock frequency adjusting system is disclosed. The clock frequency adjusting system includes a sensing clock generating unit, a frequency-dividing unit and a controller. The frequency-dividing unit makes frequency of the sensing clock signal be divided by a frequency-dividing modulus and then outputs a clock calibration signal. The controller includes a period counter and a frequency adjusting unit. The period counter samples the clock calibration signal through the external clock signal so as to acquire a second count value. The frequency adjusting unit calculates a frequency difference data between the clock calibration signal and the predetermined clock signal according to the first count value and the second count value, and determines a number of adjustment according to the frequency difference data and a step adjusting frequency so as to output a clock adjusting signal to the sensing clock unit to adjust frequency of the sensing clock signal.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: PIXART IMAGING INC.
    Inventor: KEVIN LEN-LI LIM