Synaptics Corporation

Yongqian Tang

Guozhong Shen

Ozan Ersan Erdogan

Joseph Kurth Reynolds

Xiaodan Mei

Bob Lee Mackey

Patrick Smith

Pascale El Kallassi

Shubha Ramakrishnan

Taehee Cho

Mandar Kulkarni

Jim Aroyan

An input device comprises a plurality of sensor electrodes and a processing system coupled to the plurality of sensor electrodes. The processing system comprises a sensor driver. The sensor driver comprises clock synchronization circuitry, a blocking pulse generator, and a sensor module. The clock synchronization circuitry is configured to receive an external clock signal, and synchronize an internal clock signal with the external clock signal. The blocking pulse generator is configured to generate a first blocking pulse based on the internal clock signal. The sensor module comprises sensing circuitry and is configured to pause acquisition of a resulting signal from a sensor electrode based on the first blocking pulse.

Display noise filter for a sensing device

An integrated sensing device comprising a force sensor and fingerprint sensor disposed on different portions of a flexible circuit. The fingerprint sensor is disposed on a first side of a first portion of the flexible circuit and the force sensor is disposed on a second portion of the flexible circuit. The flexible circuit is configured such that the first portion is over the second portion. The fingerprint sensor includes fingerprint sensor electrodes disposed on the first side of the first portion. The force sensor comprises a compressible layer disposed between a second side of the first portion and a first side of the second portion, and one or more one force electrodes.

Integrated fingerprint and force sensor

An input device includes sensing pixels, each sensing pixel including a photodiode, and a gate driver circuit controlling operation of the sensing pixels. The gate driver circuit includes a set of cascaded gate driver units. Each of the cascaded gate driver units is associated with a subset of the sensing pixels, controlling an operation of the subset of the sensing pixels. The set of cascaded gate driver units output, during a reset phase of the input device, a global reset gate control signal to the sensing pixels in response to a clock signal. Each of the cascaded gate driver units sequentially output, during an operating phase of the input device, an operating gate control signal to the associated subset of the sensing pixels.

Short latency fingerprint sensing

A transparent sensor pattern suitable for sensing fingerprint information in a display area is disclosed. The sensor pattern includes a receiver electrode extending in a first direction and a transmitter electrode extending in a second direction different from the first direction. The receiver electrode includes a conductive trace made from an opaque metal material and the receiver electrode is substantially free of transparent conductive material. The transmitter electrode includes a conductive segment made from a transparent conductive material. A dielectric material is disposed between the receiver electrode and the transmitter electrode, and the dielectric material electrically insulates the receiver electrode from the transmitter electrode.

Transparent fingerprint sensor pattern

A sensor array for capacitive sensing includes: a plurality of sensor electrodes, the plurality of sensor electrodes comprising: a plurality of transmitter electrodes and a plurality of receiver electrodes, wherein the plurality of receiver electrodes include a plurality of imaging receiver electrodes and a reference receiver electrode, and wherein each of the plurality of receiver electrodes overlaps with the plurality of transmitter electrodes; wherein each of the plurality of transmitter electrodes is configured to be driven by sensing signals and each of the plurality of receiver electrodes is configured to receive detected signals corresponding to the sensing signals driven onto the transmitter electrodes; and conductive shielding disposed proximate to the reference receiver electrode.

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San Jose, CA, United States of America

Yongqian Tang