Synaptics Patent Grants

System and method for detecting an active pen with a matrix sensor

Granted: June 27, 2017
Patent Number: 9690397
A processing system, input device, and method are disclosed to detect an active input device. The method includes operating a first portion of a plurality of sensor electrodes to receive an active input signal from an active input device, and operating a second portion of the plurality of sensor electrodes to receive capacitive sensing data corresponding to a passive input device. The first and second portions include at least one sensor electrode in common. The method also includes…

System and method for determining input object information from proximity and force measurements

Granted: June 27, 2017
Patent Number: 9690438
A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group…

Image processing apparatus, image processing method, display panel driver and display apparatus

Granted: June 27, 2017
Patent Number: 9691347
An image processing apparatus includes a reference value calculating section configured to generate a value that is a weighted average of values of R data, G data, and B data of original RGB data as a reference value. Regarding each of color data such as the R data, the G data, and the B data, a value is calculated that is coincident with a value obtained by adding the value of the color data of the original RGB data to a product of a difference obtained by subtracting the reference…

Differential amplifier circuit and display drive circuit

Granted: June 27, 2017
Patent Number: 9692374
A differential amplifier circuit and display drive circuit having the same are disclosed herein. In one example, a differential amplifier circuit includes a differential pair transistor configure to receive a differential input signal. A current source is connected in series to the differential pair transistor and an output transistor that drives an output terminal on the basis of the differential input signal. The output transistor is configured to increase a current value of a current…

Multi-monitor display system

Granted: June 20, 2017
Patent Number: 9684482
A multi-monitor display is disclosed. A multi-monitor display receives video data configured for a single N×M video display; splits the video data into a plurality of portions spanning the N×M display; and transmits the plurality of portions to a corresponding plurality of displays. The multi-monitor display system can be any system, for example a display-port system or an ePaper system.

Touch and display device having an integrated sensor controller

Granted: June 13, 2017
Patent Number: 9678586
Embodiments of the invention generally provide an input device having a smaller overall physical size and a lower production cost, and is minimally affected by electrical interference versus conventional input devices. Embodiments discussed herein include an input device that has a sensor controller disposed in close proximity to a plurality of sensing elements that are used to sense and acquire positional information of an input object. In one embodiment, the sensor controller and at…

Acquiring multiple capacitive partial profiles for interleaved capacitive sensing

Granted: June 13, 2017
Patent Number: 9678599
Embodiments include a method, input device, and processing system for operating a plurality of sensor electrodes for capacitive sensing. The method includes acquiring a first capacitive partial profile by driving a first capacitive sensing signal onto a first sensor electrode of a first plurality of sensor electrodes while driving a second sensor electrode of the first plurality of sensor electrodes with a substantially constant voltage. The method further includes acquiring a second…

Systems and methods for switching sensing regimes for gloved and ungloved user input

Granted: June 13, 2017
Patent Number: 9678605
The various embodiments described herein provide input devices configured to selectively operate in two different sensing regimes. The first sensing regime is configured to determine positional information for ungloved fingers in the sensing region. The second sensing regime is configured to determine positional information for gloved fingers in the sensing region. The input devices are further configured to switch from operating in the first sensing regime to the second sensing regime…

Input device with force sensing

Granted: June 6, 2017
Patent Number: 9671898
Devices and methods are provided that facilitate improved input device performance. The devices and methods utilize a first substrate with proximity sensor electrodes and at least a first force sensor electrode disposed on the first substrate. A second substrate is physically coupled to the first substrate, where the second substrate comprises a spring feature and an electrode component. The electrode component at least partially overlaps the first force sensor electrode to define a…

Avoidance of bending effects in a touch sensor device

Granted: June 6, 2017
Patent Number: 9671915
Disclosed herein include an input device, processing system and methods for touch sensing. Implementations advantageously are resistive to diminished performance when a film stack of an input device is bent in response to an input (touch) event. In one implementation, an input device is provided that includes a housing, a plurality of sensor electrodes disposed in a pattern on a substrate, a plurality of routing traces coupled to the sensor electrodes, an electrically conductive shield…

System and methods for determining object information using selectively floated electrodes

Granted: May 30, 2017
Patent Number: 9665214
The embodiments described herein provide devices and methods that facilitate improved sensor devices. In one embodiment, a capacitive input device is provided that includes a processing system, a plurality of sensing electrodes configured to sense objects in a sensing region, a conductor, and a shield layer comprising at least one shield electrode, where the at least one shield electrode is disposed between the plurality of sensing electrodes and the conductor. The processing system is…

Tiered wakeup strategy

Granted: May 30, 2017
Patent Number: 9665762
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…

Opportunistic compression for display self refresh

Granted: May 30, 2017
Patent Number: 9666108
A display device, a processing system, and a method are provided for updating a display device using self-refresh techniques. The described technique provides an indication to a host processor of whether a frame of display update data has been successfully compressed and stored entirely within a local frame buffer of the display. The host processor may invoke a self-refresh of the display for updating the display with a static display image, based on the received indications.

Fingerprint sensing circuit

Granted: May 30, 2017
Patent Number: 9666635
Fingerprint sensing circuit packages and methods of making such packages may comprise a first substrate having a top side and a bottom side; the top side comprising a fingerprint image sensing side over which a user's fingerprint is swiped; the bottom side comprising a metal layer forming a fingerprint sensing circuit image sensor structure; and a sensor control circuit housed in a sensor control circuit package mounted on the metal layer. The sensor control circuit may comprise an…

Using a printed circuit to offset charge during capacitive sensing

Granted: May 23, 2017
Patent Number: 9658722
In a method of capacitive sensing an absolute capacitive sensing signal is driven through at least one of a plurality of routing traces of a printed circuit. Absolute capacitive sensing is performed with at least one sensor electrode of a plurality of sensor electrodes in a sensor electrode pattern. The at least one sensor electrode is coupled with the at least one of the plurality of routing traces. An offsetting signal is transmitted on a parallel conductor overlapping the at least one…

Fingerprint sensor and button combinations and methods of making same

Granted: May 16, 2017
Patent Number: 9651513
It will be understood by those skilled in the art that there is disclosed in the present application a biometric sensor that may comprise a plurality of a first type of signal traces formed on a first surface of a first layer of a multi-layer laminate package; at least one trace of a second type, formed on a second surface of the first layer or on a first surface of a second layer of the multi-layer laminate package; and connection vias in at least the first layer electrically connecting…

Top mount clickpad module for bi-level basin

Granted: May 16, 2017
Patent Number: 9652057
An input device for use with an electronic system. The input device includes: a substantially planar input surface comprising a capacitive sensor layer configured to sense positional information for an input object, the input surface having a first zone and a second zone, wherein the second zone is configured to deflect in response to force applied to the second zone by the input object; a stiffener substrate having a first portion affixed to a bottom surface of the first zone, and at…

Press hard and move gesture

Granted: May 16, 2017
Patent Number: 9652069
A method. The method may include obtaining force information regarding an input force applied by an input object to a sensing region of an input device. The method may include determining, using the force information, that the input force exceeds a first force threshold. The method may include determining, using the force information, whether the input force exceeds a second force threshold. The method may include obtaining positional information for an input object in the sensing region…

Full in-cell sensor

Granted: May 16, 2017
Patent Number: 9652072
A display device having an integrated capacitive sensing device includes receiver electrodes disposed on a back side of a color filter glass. Transmitter electrodes of the capacitive sensing device are configured with a size and geometry that reduces the capacitive coupling between the transmitter and receiver electrodes. The transmitter electrodes may be made of one or more prongs or segments from a segmented common electrode.

Ramp digital to analog converter

Granted: May 16, 2017
Patent Number: 9653038
A source driver for a display, including: a current source that provides an approximately constant current; and multiple channels coupled to multiple source electrodes and including multiple digital to analog converters (DAC), each DAC including: a voltage source that applies a voltage to a source electrode based on the approximately constant current provided by the current source; and a control unit having circuitry that: inputs a digital value; and terminates, based on the digital…