Patents by Inventor Gregory A. Lewis

Gregory A. Lewis 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: 20140328522
    Abstract: An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Inventors: Gregory Lewis DEAN, Richard Alexander ERHART, Jaswinder S. JANDU, Erik Jonathon THOMPSON
  • Patent number: 8787632
    Abstract: An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 22, 2014
    Assignee: Synaptics Incorporated
    Inventors: Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Erik Jonathon Thompson
  • Publication number: 20140198960
    Abstract: A biometric authentication apparatus and method is disclosed which may comprise a biometric authentication unit which may comprise: a biometric object sensor comprising sensor elements and a sensor computing device; a wake-on-event logic controller maintaining the sensor computing device in one of a powered-off or powered down mode, and including a bulk biometric object detector configured to detect a biometric object on or in the vicinity of the sensor elements and to power-on or power-up the sensor computing device responsive to the detection of the biometric object on or in the vicinity of the sensor elements; the sensor computing device configured to analyze one or more lines of biometric object image comprising a partial biometric object image and determine if the partial biometric image belongs to a biometric object desired to be imaged to obtain a complete biometric object image, and to provide a power-on or power-up signal to a host electronic device computing device when the partial biometric image i
    Type: Application
    Filed: February 13, 2013
    Publication date: July 17, 2014
    Applicant: Synaptics Incorporated
    Inventors: Erik Jonathon THOMPSON, Charles Walter BELLMAN, Anthony P. Russo, Philip Yiu Kwong CHAN, Bjoren Kurt DAVIS, Gregory Lewis DEAN, Richard Alexander ERHART, Jaswinder JANDU, Ty Bao LIEN, Frank SCHWAB
  • Patent number: 8735871
    Abstract: An organic thin film transistor comprising: a substrate; a source electrode and a drain electrode disposed over the substrate with a channel region therebetween; a layer of organic semiconductor disposed in the channel region; a gate electrode; and a gate dielectric disposed between the layer of organic semiconductor and the gate electrode, wherein the gate dielectric comprises a cross-linked polymer and a fluorine containing polymer.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: May 27, 2014
    Assignees: Cambridge Display Technology Limited, Panasonic Corporation
    Inventors: Jonathan J. Halls, Gregory Lewis Whiting, Craig Murphy, Kaname Ito
  • Publication number: 20140115300
    Abstract: Some methods, computer program products, and data processing nodes identify a data unit in a data memory that is to be operated upon by a processor circuit, and uses a characteristic of the data unit to identify what instruction(s) within an instruction memory is be executed by the processor circuit to perform an operation upon the data unit. The data memory may be local to the processor circuit, and the instruction memory may be remotely accessible to the processor circuit through a data network.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Inventor: Gregory Lewis Bodine
  • Publication number: 20140093143
    Abstract: A system and method are disclosed for conserving power during navigation, e.g., user device pointer/cursor navigation, using a fingerprint image sensor, that may comprise processing, via a computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a first finger navigation mode; processing, via the computing device, fingerprint image sensor data indicative of finger position and movement with respect to a fingerprint image sensor surface in a finger navigation mode to determine if the finger is in a second finger navigation mode; and transitioning, via the computing device, the fingerprint image sensor from a first power consumption mode to a second power consumption mode, based on detecting a transition from the first finger navigation mode to the second finger navigation mode.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Applicant: Validity Sensors, Inc.
    Inventors: Erik Jonathon THOMPSON, Frank SCHWAB, Anthony P. RUSSO, Bjoren DAVIS, Charles BELLMAN, Gregory Lewis DEAN, Philip Yiu Kwong CHAN, Jaswinder JANDU
  • Patent number: 8642379
    Abstract: A method of making a top-gate organic thin film transistor, comprising forming source and drain contacts on a substrate; oxidizing portions of the source and drain contacts; depositing an organic semiconductor layer to form a bridge between the oxidized portions of the source and drain contacts; depositing a gate insulating layer over the organic semiconductor layer; and forming a gate electrode over the gate insulating layer.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: February 4, 2014
    Assignees: Cambridge Display Technology Limited, Panasonic Corporation
    Inventors: Sadayoshi Hotta, Jeremy Henley Burroughes, Gregory Lewis Whiting
  • Publication number: 20140016838
    Abstract: An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.
    Type: Application
    Filed: August 13, 2013
    Publication date: January 16, 2014
    Applicant: Validity Sensors, Inc.
    Inventors: Gregory Lewis DEAN, Richard Alexander ERHART, Jaswinder JANDU, Erik Jonathon THOMPSON
  • Patent number: 8600122
    Abstract: An apparatus for culling substantially redundant data in a fingerprint sensing circuit is disclosed in one embodiment of the invention as including an input module, a storage module, a comparator module, and a determination module. The input module may receive sets of data samples from an array of fingerprint sensing elements. The sets of data samples may be stored by the storage module. The comparator module may calculate a difference between each data sample from a first-received set, and a corresponding data sample from a second-received set. The determination module may count the number of difference values that exceed a predetermined difference limit, and identify the second set of data samples as redundant if the number of difference values counted is less than a pre-set count limit.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: December 3, 2013
    Assignee: Validity Sensors, Inc.
    Inventors: Gregory Lewis Dean, Erik Jonathon Thompson, Frank Schwab, Richard Alexander Erhart
  • Patent number: 8593160
    Abstract: An apparatus and method for detecting the presence of a finger on a fingerprint sensor is disclosed in one embodiment of the invention as including transmitting a probing signal, comprising a series of probing pulses, to a fingerprint sensing area. A response signal, comprising a series of response pulses, is received from the fingerprint sensing area in response to the probing signal. An upper reference signal is generated and finger activity is detected on the fingerprint sensing area by monitoring whether the peaks of the response pulses exceed the reference signal.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 26, 2013
    Assignee: Validity Sensors, Inc.
    Inventors: Erik Jonathon Thompson, Gregory Lewis Dean, Jaswinder Jandu, Richard Alexander Erhart
  • Patent number: 8520913
    Abstract: An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 27, 2013
    Assignee: Validity Sensors, Inc.
    Inventors: Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Erik Jonathon Thompson
  • Publication number: 20130177220
    Abstract: A sensing circuit and method is disclosed, which may comprise a plurality of transmitting or receiving elements each defining a pixel location defined by a gap between the respective one of the plurality of transmitting or receiving elements and a single element of the opposing type to the respective transmitting or receiving element, and a controller configured to provide or receive a probing signal to or from a group of at least two of the plurality of transmitting or receiving elements, at the same time, thereby increasing the effective area providing the transmitting of or the receiving of the probing signal for each pixel location imaged. The group of transmitting or receiving elements may form a symmetric pattern, which may be centered on the pixel location. The plurality of transmitting or receiving elements may form at least one linear pixel array with the respective single receiving or transmitting element.
    Type: Application
    Filed: December 19, 2012
    Publication date: July 11, 2013
    Inventors: Richard Alexander Erhart, Paul Wickboldt, Gregory Lewis Dean
  • Patent number: 8459572
    Abstract: Technology is presented for the high efficiency concentration of fine and ultrafine airborne particles into a small fraction of the sampled airflow by condensational enlargement, aerodynamic focusing and flow separation. A nozzle concentrator structure including an acceleration nozzle with a flow extraction structure may be coupled to a containment vessel. The containment vessel may include a water condensation growth tube to facilitate the concentration of ultrafine particles. The containment vessel may further include a separate carrier flow introduced at the center of the sampled flow, upstream of the acceleration nozzle of the nozzle concentrator to facilitate the separation of particle and vapor constituents.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: June 11, 2013
    Assignee: Aerosol Dynamics Inc.
    Inventors: Susanne Hering, Gregory Lewis, Steven R. Spielman
  • Patent number: 8450142
    Abstract: An organic thin film transistor comprising: a substrate; a source electrode and a drain electrode defining a channel; a layer of insulating material disposed over the source and drain electrodes; a layer of organic semi-conductive material extending across the channel; a layer of dielectric material; and a gate electrode disposed over the layer of dielectric material.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: May 28, 2013
    Assignees: Cambridge Display Technology Limited, Panasonic Corporation
    Inventors: Sadayoshi Hotta, Jeremy Henley Burroughes, Gregory Lewis Whiting
  • Patent number: 8437407
    Abstract: Techniques are disclosed for employing a set of stream processors to greatly accelerate common video encoding and transcoding tasks, with the goal of making these tasks run at a reasonable rate on off-the-shelf hardware. Stream processors are most commonly found in the graphics processing unit (GPU), a commodity piece of computer hardware used to generate images for display. Embodiments of the invention are particularly advantageous to accelerate video encoding and transcoding tasks in which the blocks being processed have dependencies on their neighboring blocks.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: May 7, 2013
    Assignee: Elemental Technologies, Inc.
    Inventors: Jesse J. Rosenzweig, Brian Gregory Lewis, Samuel Blackman
  • Publication number: 20130021044
    Abstract: An apparatus and method for detecting the presence of a finger on a fingerprint sensor is disclosed in one embodiment of the invention as including transmitting a probing signal, comprising a series of probing pulses, to a fingerprint sensing area. A response signal, comprising a series of response pulses, is received from the fingerprint sensing area in response to the probing signal. An upper reference signal is generated and finger activity is detected on the fingerprint sensing area by monitoring whether the peaks of the response pulses exceed the reference signal.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 24, 2013
    Applicant: Validity Sensors, Inc.
    Inventors: Erik Jonathon Thompson, Gregory Lewis Dean, Jaswinder Jandu, Richard Alexander Erhart
  • Publication number: 20120276434
    Abstract: A flexible battery and a method to form the flexible battery include forming an anode by embedding an anode type electro-active material within a mesh material and associating an anode current collector with the anode. Similarly a cathode is formed by embedding a cathode type electro-active material within a mesh material and a cathode current collector is associated with the cathode. An electrolyte is located between the anode and cathode, and the arrangement is sealed.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 1, 2012
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Abhinav M. Gaikwad, Gregory Lewis Whiting
  • Patent number: 8288799
    Abstract: A thin film field effect transistor is disclosed which provides improved time-based channel stability. The field effect transistor includes first and second disordered semiconductor layers separated by an insulator. In an embodiment a carrier injection terminal is provided in a thin semiconductor layer closest to the gate terminal. An electric field is established in the thin semiconductor layer. At sufficient field strength, the electric field extends into the second semiconductor layer, which is in contact with the source and drain terminals. At sufficient field strength a channel is established in the second semiconductor layer, permitting current to flow between source and drain terminals. Above a certain gate voltage, there is sufficient free charge is induced in the first semiconductor layer so that the field does not extend into the second semiconductor, effectively shutting off current between source and drain. Single-device transition detection (as well as other applications) may be obtained.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: October 16, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Sanjiv Sambandan, Ana Claudia Arias, Gregory Lewis Whiting
  • Publication number: 20120248092
    Abstract: A thermistor has a mixture of a temperature sensitive material and a conductive material, and an electrode in electrical contact with the mixture. A method of manufacturing a thermistor includes depositing conductive contacts onto a substrate, printing a thermistor mixture of temperature sensitive material and a conductive material over the contact, and annealing the thermistor mixture to produce a flexible thermistor on the conductive contacts.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Scott Albert Uhland, Jurgen H. Daniel, Gregory Lewis Whiting
  • Patent number: 8278946
    Abstract: An apparatus and method for detecting the presence of a finger on a fingerprint sensor is disclosed in one embodiment of the invention as including transmitting a probing signal, comprising a series of probing pulses, to a fingerprint sensing area. A response signal, comprising a series of response pulses, is received from the fingerprint sensing area in response to the probing signal. An upper reference signal is generated and finger activity is detected on the fingerprint sensing area by monitoring whether the peaks of the response pulses exceed the reference signal.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: October 2, 2012
    Assignee: Validity Sensors, Inc.
    Inventors: Erik Jonathon Thompson, Gregory Lewis Dean, Jaswinder Jandu, Richard Alexander Erhart