Cypress Semiconductor Corporation

Parade Technologies, Ltd.

Seagate Technology Incorporated

Wacom Co., Ltd.

Magnetic Peripherals Inc.

Cyrpess Semiconductor Corp.

Cypress Semiconductor Conductor

Edward L Grivna

David Gordon Wright

Hans Klein

Ronald H Sartore

Igor Polishchuk

Jason Baumbach

Steven Kolokowsky

Viktor Kremin

Tao Peng

Timothy John Williams

Andriy Maharyta

Oleksandr Karpin

Gabriel M Li

Patrick N Prendergast

Paul H Scott

Daniel O'Keeffe

Ihor Musijchuk

Anton Konovalov

Darrin Vallis

Yuriy Boychuk

David Bordui

Daniel Tate

Weibiao Zhang

MingChan Chen

S Babar Raza

Hans Van Antwerpen

Thinh Tran

Cole D Wilson

Ryan D Seguine

Gregory J Landry

Vibheesh Bharathan

Weston Roper

Michael F Maas

Mohandas Palatholmana Sivadasan

Tony Park

Joe P Matthews

Paul Gerald Clark

Michael Maas

Santhosh Kumar Vojjala

Sai Prashanth Chinnapalli

Jijeesh Choorakottayil Gopinathan

Jason Konstas

Carl Brasek

Jeffrey D Dekosky

Herman T Todd

Wallace J Erikson

Gabe Rowe

Lokesh Chandra

A device acquires first sense data representing first electrical signals sensed from a first subset of a plurality of sensors of a touch surface. The device acquires second sense data representing second electrical signals sensed from a second subset of the plurality of sensors. The device detects a first set of one or more touches based on the first sense data and the second sense data. After the acquiring of the first sense data, the device acquires third sense data representing third electrical signals sensed from the first subset of the plurality of sensors; and detects a second set of one or more touches at the touch surface based on the second sense data and the third sense data.

Touch surface scanning method and device

A capacitance sensing system can filter noise that presents in a subset of electrodes in the proximity of a sense object (i.e., finger). A capacitance sensing system can include a sense network comprising a plurality of electrodes for generating sense values; a noise listening circuit configured to detect noise on a plurality of the electrodes; and a filtering circuit that enables a filtering for localized noise events when detected noise values are above one level, and disables the filtering for localized noise events when detected noise values are below the one level.

Noise filtering devices, systems and methods for capacitance sensing devices

An apparatus may include an internal charge pump within an integrated circuit package, an external pin positioned at an exterior of the integrated circuit package, and a select circuit configured to operate independently from the internal charge pump and located within the integrated circuit package, wherein the select circuit is configurable to selectively couple at least one of the internal charge pump and the external pin to a transmit (TX) sensor electrode.

Touch sensor driver with selectable charge source

An apparatus includes a contact grid array disposed on a substrate in a non-orthogonal row-column format with connection elements arranged in a hexagonal configuration. The contact grid array has an orientation based, at least in part, on an area available for the contact grid array on the substrate. A method to determine the orientation of the contact grid array includes identifying the area available for a contact grid array on a substrate and determining the orientation for the contact grid array based, at least in part, on the area available for the contact grid array on the substrate.

Ball grid structure

A method for locating a conductive object at a touch-sensing surface may include detecting a first resolved location for the conductive object at the touch-sensing surface based on a first scan of the touch-sensing surface, predicting a location for the conductive object, and determining a second resolved location for the conductive object by performing a second scan of a subset of sensor electrodes of the touch-sensing surface, wherein the subset of sensor electrodes is selected based on the predicted location of the conductive object.

Predictive touch surface scanning

A touch sensing system and methods of operating the same for pipelined conversions are provided. In one embodiment, the method includes: (i) configuring a capacitive sensing system including a plurality of capacitive sensing elements for a first conversion; (ii) sensing capacitance in the capacitive sensing elements, and converting the capacitance sensed in the capacitive sensing elements to a digital, first conversion result; and (iii) while converting the capacitance sensed to the first conversion result, configuring the capacitive sensing system. In another embodiment, the capacitive sensing system includes a plurality of channels, and sensing capacitance and converting the capacitance sensed to the first conversion result includes integrating analog signals from the capacitive sensing elements for one of the plurality of channels while converting the integrated signal for another of the plurality of channels to a digital subconversion result.

Method and apparatus for pipelined conversions in touch sensing systems

A method and apparatus scan a device at a first scanning rate and a second scanning rate, detect a first portion of a gesture through scanning at the first scanning rate, and detect a second portion of the gesture through scanning at the second scanning rate. The method and apparatus recognize the gesture based on the detected first portion of the gesture and the detected second portion of the gesture.

Methods and apparatus to detect a touch pattern using variable scan rates

An embodiment of a capacitive touch screen may comprise a display device comprising a substantially transparent substrate, a first plurality of electrodes attached to the substantially transparent substrate, wherein the first plurality of electrodes are substantially parallel in a first direction, and a second plurality of electrodes, wherein each of the second plurality of electrodes is capacitively coupled with each of the first plurality of electrodes.

Capacitive touch screen

An embodiment of a multiplexer circuit may include a plurality of Preceive (RX) channel outputs and a plurality of Qpins, where Qis greater than P. Each of a first subset and a third subset of the plurality of Qpins may be switchably coupled to at least one of the plurality of RX channels, each of a second subset of the plurality of Qpins is switchably coupled to two of the plurality of RX channels, and for each possible subset of Pcontiguous pins from the plurality of Qpins, each pin in the possible subset may be switchably coupled to a different RX channel output of the plurality of RX channel outputs.

Multiplexer for a TX/RX capacitance sensing panel

An apparatus and method for providing an active feedback of a position of a conductive object, manipulated by a user on a sensing device, to allow detection of a reference location on the sensing device by the user. The apparatus may include a sensing device to detect a presence of a conductive object, manipulated by a user on the sensing device, a processing device coupled to the sensing device, the processing device to determine a position of the conductive object on the sensing device, and a feedback mechanism coupled to the processing device to provide an active feedback to the user to allow detection of a reference location on the sensing device by the user.

Feedback mechanism for user detection of reference location on a sensing device

A method and apparatus to couple a piece of electret material to a touch-sensor device stylus, where the electret material emits an electrostatic field to be sensed by a touch-sensor device.

Electret stylus for touch-sensor device

A method of operating a touch-sensing surface may include determining a presence of at least one conductive object at the touch-sensing surface by performing a search measurement of a first set of sensor elements of the touch-sensing surface, and in response to determining the presence of the at least one conductive object, determining a location of the at least one conductive object by performing a tracking measurement of a second set of sensor elements of the touch-sensing surface.

Dynamic mode switching for fast touch response

A method of operating a touch-sensing surface may include performing a first scan of a first set of electrodes of a touch-sensing surface, determining a presence of at least one conductive object proximate to the touch-sensing surface, in response to determining the presence of the at least one conductive object, performing a second scan of a second set of electrodes of the touch-sensing surface, and repeating the performing the second scan until the at least one conductive object is no longer proximate to the touch-sensing surface.

Growing community of inventors

Brooklyn Park, MN, United States of America

Edward L Grivna