Cypress Semiconductor Corporation

Wacom Co., Ltd.

Monterey Research, LLC

Tamiras Per Pte. Ltd., LLC

Luciano Processing L.l.c.

Parade Technologies, Ltd.

Cypress Semiconductor Coproration

David Gordon Wright

Timothy John Williams

Harold Kutz

Warren S Snyder

Bruce E Byrkett

Viktor Kremin

Andriy Ryshtun

Edward L Grivna

Eashwar Thiagarajan

Bert Sullam

Mark E Hastings

Erhan Hancioglu

Jason Faris Muriby

Monte F Mar

Hans Klein

Gregory John Verge

Dennis Raymond Seguine

Igor Kolych

James H Shutt

Nathan Wayne Kohagen

Andriy Maharyta

Roman Ogirko

Ronald H Sartore

Steve Kolokowsky

Hassane El-Khoury

Steven Kolokowsky

Oleksandr Karpin

Oleksandr Hoshtanar

Hans Van Antwerpen

Igor Kravets

Cole D Wilson

David Van Ess

Carl Liepold

Rajagopal Narayanasamy

Stephen O'Connor

Michael Sheets

Kristopher L Young

John Anthony Wisniewski

Christopher Corson Keeser

Mahadevan Krishnamurthy Narayana Swamy

Robert L Murphy

Adrian Woolley

Jeff M Boschee

Paul F Beard

Nathan Y Moyal

Steven Philip Larky

Robert Mack

Darrin Vallis

Ray Asbury

Jeffrey Erickson

Barry Sullivan Hatton

Kamesh Medapalli

Mark R Gehring

Craig Nemecek

Greg J Landry

Jonathan R Peterson

Ryan Winfield Woodings

Yan Li

Vasyl Mandziy

Jayant Ashokkumar

Thomas Fuller

David W Still

Vibheesh Bharathan

Volodymyr Hutnyk

Eric D Blom

Jon Peterson

Jeffrey D Wick

Mohandas Palatholmana Sivadasan

Yanbing Zhang

John B Foreman

David Bordui

Greg Verge

Melany Ann Richmond

Srikanth Reddy Tiyyagura

Ham Prince

David Wooten

Frederick D Jaccard

Robert Walter Metzler, Jr

Shopitham Ram

Derek Richardson

Santhosh Kumar Vojjala

Sai Prashanth Chinnapalli

Jijeesh Choorakottayil Gopinathan

Shane Abbott

Dave Estlick

Johnny Brown

Robert B Swan, Iii

Mark Schultz

Jeff Chang

Paul W Novell

Eashwar Thiagaragen

A stylus detecting system includes a sense array including N number of first lines and M number of second lines crossing the N number of first lines; and a touch controller connected to the sense array and configured to: (i) in a touch object detecting mode, drive the N number of first lines as transmission (TX) lines with a finger sensing TX signal and measure reception (RX) signals on the M number of second lines as RX lines, and (ii) in a stylus detecting mode, measure a stylus TX signal transmitted by a stylus, on both the N number of first lines and the M number of second lines, using #number of multiple RX channels (#RX channels) to sense more than one line of the first and second lines at the same time, such that a complete stylus scan includes (N+M)/(#RX channels) number of scans.

Stylus detection system having touch object detecting mode and stylus detecting mode

An apparatus and method of measuring a collective capacitance on a group of capacitive sense elements from at least one of rows or columns of a capacitance sense array when in a first mode, and individually measuring capacitances on each of the rows and columns when in a second mode.

Reducing sleep current in a capacitance sensing system

An elongated stylus is configured to be capacitively coupled with a sensor array providing a plurality of electrodes to indicate a position on the sensor array. The stylus includes a housing having an end in an elongated direction of the housing, a conductive tip disposed at least partially extended from the end of the housing, an electrode disposed around the conductive tip and configured to at least partially expose the conductive tip, and a signal transmit drive circuit configured to provide a signal. Control is performed to form an electrical connection between the electrode and a ground and an electrical connection between the electrode and the signal transmit drive circuit when the elongated stylus is activated for capacitive coupling with the sensor array.

Active stylus and capacitive position detection system having touch object detecting mode and stylus detecting mode

A method for driving a load includes driving a load to an initial voltage within a voltage window, the voltage window based on an input voltage and an offset voltage, and driving the load to approximately the input voltage.

Load driver

A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.

Sensor-compatible overlay

Active stylus and capacitive position detection system

Systems, methods, and devices shape waveforms associated with transmission of data from wireless communications devices. Methods may include identifying, using a processing device, a plurality of portions of a Bluetooth packet for transmission from a wireless communications device, the plurality of portions comprising a first portion and a second portion. Methods may also include determining, using the processing device, a first transmit power associated with the first portion and a second transmit power associated with the second portion, the determining being based, at least in part, on whether the first portion or second portion is used in packet detection. Methods may further include transmitting the first portion of the Bluetooth packet using the first transmit power, and transmitting the second portion of the Bluetooth packet using the second transmit power.

Transmit waveform shaping for wireless communications devices

Systems, apparatus, and methods measure a signal provided by a capacitance sensor, the signal indicative of a presence of an object proximate to the capacitance sensor. Responsive to measuring the signal, embodiments access control information in a memory to determine whether the signal is associated with a first qualifying event of the control information. Responsive to determining that the signal is associated with the first qualifying event, embodiments control a power consumption of a communication device.

Low-power touch button sensing system

A system made up of a first device which includes a communication interface and a processing device and a second device which includes a touch sensor assembly and a controller, where the controller uses the touch sensor assembly to communicate with the processing device through a capacitor that is jointly formed by the touch sensor assembly and a conductive portion of the communications interface.

Method and apparatus for data transmission via capacitance sensing device

A voltage regulator includes a programming interface via which programming instructions may be applied to a processor of the voltage regulator. The voltage regulator operates the processor according to the programming instructions to select one of multiple active internally-generated analog voltage levels to determine an output voltage level of the voltage regulator.

Intelligent voltage regulator

A touch detection system in accordance with one embodiment of the invention can include a circuit for converting a capacitance to a digital value. The touch detection system can include first and second communication interface circuits for enabling a first and second communication protocols, respectively. Furthermore, the touch detection system can include a detector circuit coupled to the first communication interface circuit and the second communication interface circuit. The detector circuit can be for automatically detecting a factor that indicates automatically enabling the first communication interface circuit and automatically disabling the second communication interface circuit. The detector circuit can be for detecting a coupling of a pin of the first communication interface circuit that is not used by the second communication interface circuit.

Auto-switching communication interface

A universal serial bus (USB) apparatus that has a USB hub, a first switching unit including first end coupled to a USB peripheral port of a first device, a second switching unit including a second end coupled to the USB hub and the first switching unit and a first end configured to be coupled to a first USB device, and control circuitry operable to provide control signals to the first and second switching units, in which the first control signals cause the first and second switching units to provide connectivity between the USB peripheral port of the first device and the first USB device when the first USB device is operating as a USB host and the second control signals to provide connectivity between the USB host port to the first USB device via the USB hub when the first USB device is operating as a USB peripheral.

USB signal switch circuitry using standard USB hub and method of operation the same

A microcontroller comprises a plurality of digital peripheral blocks and a direct memory access (DMA) controller coupled thereto. The plurality of digital peripheral blocks includes a digital peripheral block that is configured to issue a DMA request. Upon receipt of the DMA request, the DMA controller is configured to retrieve configuration information and to write the configuration information to a configuration register associated with a circuit element of the microcontroller.

Combined analog architecture and functionality in a mixed-signal array

A programmable input/output (I/O) circuit includes an output buffer coupled between an output signal and an I/O pad and an input comparator coupled between an input signal and the I/O pad. The input comparator includes a first input coupled to the I/O pad. A multiplexor receives a select signal for selecting a first reference voltage from the plurality of reference voltages at a first time and for dynamically selecting a second reference voltage from the plurality of reference voltages at a second time.

Programmable input/output circuit

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San Diego, CA, United States of America

David Gordon Wright