Tactual Labs Co.

Mitsubishi Electric Research Laboratories, Inc.

Facebook Technologies, LLC

Clifton L Forlines

Daniel John Wigdor

Darren L Leigh

Ricardo Jorge Jota Costa

Steven Leonard Sanders

Bruno Rodrigues De Araujo

Braon Moseley

Robert Joseph Alack, Jr

Adam Landa

Karan Singh

Haijun Xia

Jonathan Deber

Ramesh Raskar

Ravin Balakrishnan

Paul A Beardsley

Chia Shen

Benjamin McCanny

Anthony Vetro

David Holman

Joseph W Marks

David Clark Wilkinson

Dirk Brinkman

Kathleen Ryall

Kent Barrows Wittenburg

Alan W Esenther

Katherine Everitt

Thomas Richard Lanning

Stephen Dennis

Frédéric D Vernier

Robert Alack Jr

Daniel Wigdor

A low-latency touch sensitive device provides a method for determining a location of a touch event thereon. The touch sensitive device row conductors and column conductors, the path of each of the row conductors crossing the path of each of the column conductors. Each of a set of orthogonal row signals are simultaneously transmitted on a respective one of at least some of the row conductors and an amount of each of the plurality of orthogonal row signals present on each of the plurality of column conductors is detected. A set of orthogonal column signals are simultaneously transmitted on a respective one of at least some of the column conductors. An amount of each of the orthogonal column signals present on each of the plurality of row conductors is detected. The detected amount of each of the plurality of orthogonal row signals and the detected amount of each of the plurality of orthogonal column signals is used to determine the location of a touch event on the device.

Fast multi-touch noise reduction

A system and method for determining location of a touch event on or in proximity to a touch sensitive device is disclosed. Sampling of data is performed during different frames. The frames are processed to determine touch events and information related to the touch events.

Transmitting and receiving system and method for bidirectional orthogonal signaling sensors

A method for classifying a gesture made in proximity to a touch interface. A system receives data related to the position and/or movement of hand. The data is delimited by identifying a variable length window of touch frames. The variable length window of touch frames is selected to include touch frames indicative of feature data. The variable length window of touch frames is classified based upon classifications learned by the classifying module to identify gestures.

Delimitation in unsupervised classification of gestures

A sensor for use with vehicular components. The sensors may comprise transmitting and receiving antennas that can be interleaved or placed within the various materials throughout the vehicle so that interaction with the materials will provide information related to the use. Sensors may also infuse signal into an occupant within the vehicle via the material which can provide enhanced interactions with various vehicle features and components.

Vehicular components comprising sensors

Disclosed are touch sensitive devices and methods of responding to hits in touch sensitive devices that include a graphical user interface having interface elements, each associated with a program element. A hit test map updater is used to process graphical user interface information into a hit test map in connection with the rendering of the graphical user interface, such that the hit test map associates properties with interface elements appearing on the graphical user interface. An input processor is used to receive a location corresponding to an input in connection with an input event, search the hit test map in which values are associated with interface elements appearing in the graphical user interface, and identify a property of the interface element from the values. In an embodiment, the identified property is proved to a central processing system and a user interface event is generated. In an embodiment, the properties received from the hit test map updater and the input processor are used to determine a program element associated with the property, and the program element is signaled. In an embodiment, the identified property is processed to determine a change to the graphical user interface, and the change is displayed.

System and method for performing hit testing in a graphical user interface

A plurality of sensors for application to a steering wheel or other generally toroidal objects is disclosed. In an embodiment, the sensor comprises interleaving transmit and receive conductors. In an embodiment, the sensor comprises crossing transmit and receive conductors. In an embodiment, sensor conductors are first provided on a flat substrate, which sensors placed on the flat substrate in a configuration that will permit expansion application of the substrate to the steering wheel.

Toroidal sensor

A touch sensitive keyboard is disclosed. In one embodiment, a touch sensitive keyboard is provided that has a touchpad area separate from the keyboard keys. The keyboard is configured to disabled touchpad sensitivity when certain touch signals are received. In another embodiment, a touch sensitive keyboard is used as a controller. In a controller mode, keys on a touch sensitive keyboard are adapted to output a signal strength corresponding to a distance between the key and a finger operating as a control. In an embodiment, a touch sensitive keyboard includes a processor adapted to output a keystroke in response to one of the plurality of touch sensitive keys being pressed, and to output one or more touch points determined by interpolating signal strength for each of the plurality of touch sensitive keys on the keyboard.

Touch sensitive keyboard

Disclosed are systems and methods for decreasing latency between an acquisition of touch data and processing of an associated rendering task in a touch sensitive device having a touch sensing system capable of producing touch data at a touch sampling rate and having a display system that displays frames at a refresh rate. In an embodiment, the system estimates at least one of (a) a period of time for sampling touch data from the touch sensing system, (b) a period of time for computing touch event data from sampled touch data, and (c) a period of time for rendering of a frame to a frame buffer. The system determines a period of time Tc for (a) sampling touch data from the touch sensing system, (b) computing touch event data from sampled touch data, and (c) rendering of a frame to a frame buffer, based at least in part on the estimate. The system determines a point in time Tr at which the display system will be refreshed from the frame buffer. A sampling start time is computed based at least in part upon Tr and Tc. Sampling of the touch sensing system is initiated to obtain sampled touch data at the sampling start time. Touch event data is computed from the sampled touch data, and a frame that reflects the touch event data is rendered to the frame buffer prior to the time Tr. The display is then refreshed from the frame buffer.

System and method for timing input sensing, rendering, and display to minimize latency

In an embodiment, a touch surface, such as a GUI is graphically divided into two or more input regions, and based on this division, input event paths from a single sensor can be integrated within an operating system to provide application developers with the ability to easily and effectively filter there-between. The graphical division allows an application developer to specify which elements of a given GUI take one path, versus another. In an embodiment, low-latency and high-latency event paths are provided; an algorithm takes into consideration input regions and, based on those regions, handles the low- and high-latency input event paths in a computer system, directing the appropriate inputs through the appropriate processing, and directing the output to the appropriate process or queue without creating constraints on the low-latency event processing due to the presence of higher-latency event paths for a given sensor.

Area filtering for low-latency and high-latency input event paths from a single touch sensor

A touch display has conductors that are able to determine measurements of signals received due to touch events with a user's hand. The touch display is also able to determine measurements of signals received due to interaction with a stylus. Additionally the touch display is able to discriminate interactions between the hand holding the stylus and the free hand. Interactions with the touch display between all three may be measured and discriminated simultaneously.

Touch surfaces using stylus and touch

An infusion system including two infusors is operatively connected to a source of infusion signals. In an embodiment, the infusors being adapted for attachment to different parts of the same hand of a user. In an embodiment, the infusors are embedded in a glove or other wearable component. In an embodiment, a choke is used to mitigate infusion signals in other parts of a body. The infusion signal source is configured to transmit differing, orthogonal signals to the two infusors. In an embodiment, each of the differing signals is made up of at least a high frequency signal and a low frequency signal. In an embodiment, the high frequency signal and the low frequency signal are at least one octave apart and orthogonal to each other. In an embodiment, the infusion system includes a steering wheel sensor made from a plurality of conductors attached to a receiver.

Signal infusion to enhance appendage detection and characterization

Methods are disclosed for dynamic assignment of possible channels in a touch sensitive device having rows and columns. In an embodiment, a method determines a first signal space in which to generate signals for use in the touch sensor. Signals are then generated in the first signal space on separate ones of the rows and a column signal is sensed on a column. The first signal space is replaced with a second signal space, and a second plurality of signals is generated for use in the touch sensor in the second frequency space. The second plurality of signals is sensed to identify a touch event in the touch sensitive device.

Dynamic assignment of possible channels in a touch sensor

A system and method for distinguishing between sources of simultaneous touch events on a touch sensitive device are disclosed. The touch sensitive device includes row conductors and column conductors, the path of each of the row conductors crossing the path of each of the column conductors. Orthogonal row signals are generated on the row conductors and orthogonal column signals are generated on the column conductors. In an embodiment, an amount of each of the plurality of orthogonal row signals present on each of the plurality of row conductors is detected, an amount of each of the plurality of orthogonal column signals present on each of the plurality of column conductors is detected, and at least one of such amounts is used to associate each of the plurality of simultaneous touch events with a discrete source. The strength of such detected 'crosstalk' between row conductors can be used to distinguish two or more touch events, such as by distinguishing a two-handed gesture from a one-handed gesture, distinguishing two touch events as having been initiated by different users, distinguishing a passive object from a hand, identifying a passive object, improving palm rejection and improving accidental-touch rejection.

Orthogonal signaling touch user, hand and object discrimination systems and methods

In an embodiment, a touch sensitive device includes a touch interface having rows and columns and a signal generator for generating unique orthogonal signals on a plurality of the rows, respectively. A touch processor identifies touch on the touch interface by processing touch signals present on the columns, and outputting a stream of touch events. A decimator receives the stream of touch events, selectively identifies one or more of the touch events in the stream and assembles information concerning one or more touch events in the stream, and outputs both the selectively identified touch events and the assembled information for use by the touch sensitive device.

Growing community of inventors

Cambridge, MA, United States of America

Clifton L Forlines