Touch sensor device and electronic device equipped with touch sensor device

    公开(公告)号:US12130158B2

    公开(公告)日:2024-10-29

    申请号:US17760403

    申请日:2020-12-28

    IPC分类号: G01D5/24 G06F3/041 G06F3/044

    摘要: The present disclosure provides a touch sensor device that can improve efficiency of acquiring signal components and that can effectively address noise and electromagnetic interference. The touch sensor device includes a driver unit that drives an electrode having a capacitance that changes due to contact, using a voltage having a waveform of any shape, the voltage gradually changing from a first voltage value that is higher than a reference voltage to a second voltage value that is lower than the reference voltage, and from the second voltage value to the first voltage value, a monitor unit that monitors a drive current obtained by driving the electrode, a rectifying unit that performs full-wave rectification of the current monitored by the monitor unit, and a smoothing unit that smooths the rectified current and converts the rectified current to a current that corresponds to the capacitance of the electrode.

    IMAGING DEVICE AND IMAGING METHOD
    3.
    发明公开

    公开(公告)号:US20240357248A1

    公开(公告)日:2024-10-24

    申请号:US18577286

    申请日:2022-02-17

    发明人: SHIGERU SAITOU

    摘要: An imaging device of the present disclosure includes: a signal generation circuit that is configured to generate a first control signal; a first selection control circuit that is configured to generate a plurality of first selection signals; and a plurality of pixel circuits each including a light-receiving element, an accumulation section, a first switch, a first circuit, and a comparator circuit. The light-receiving element is configured to generate electric charge corresponding to an amount of received light. The accumulation section is configured to accumulate the electric charge generated by the light-receiving element. The first switch is configured to couple the light-receiving element to the accumulation section by being turned on. The first circuit is configured to control an operation of the first switch on the basis of one of the plurality of first selection signals and the first control signal. The comparator circuit is configured to compare a pixel signal including a voltage in the accumulation section with a reference signal having a ramp waveform.

    Imaging device and electronic device

    公开(公告)号:US12126927B2

    公开(公告)日:2024-10-22

    申请号:US18002444

    申请日:2021-06-17

    摘要: There is provided a column signal processing system including a successive approximation register analog-to-digital converter and an imaging device. The imaging device includes a pixel array unit including a plurality of pixels each including a photoelectric conversion element, a column amplifier unit that obtains a difference between a reset component and a signal component input from each pixel of the pixel array unit via a signal line, and outputs the difference as a pixel signal, a capacitance unit that holds the pixel signal input from the column amplifier unit, and a successive approximation register analog-to-digital conversion unit that converts an analog pixel signal input from the capacitance unit into a digital signal, in which the capacitance unit differentiates a single-phase pixel signal input from the column amplifier unit using a reference voltage that defines a zero voltage of the pixel signal.

    Solid-state imaging device and imaging device

    公开(公告)号:US12126924B2

    公开(公告)日:2024-10-22

    申请号:US17797817

    申请日:2021-01-28

    摘要: Please replace the currently pending Abstract with the following amended A solid-state imaging device is provided with a plurality of photoelectric conversion elements, a plurality of current-voltage conversion circuits, a plurality of address event detection circuits, first ground wiring, and second ground wiring. The plurality of photoelectric conversion elements is arranged side by side in a first region. The plurality of current-voltage conversion circuits converts currents output from the plurality of photoelectric conversion elements into voltages, respectively. The plurality of address event detection circuits detects changes in voltages output from the plurality of current-voltage conversion circuits, respectively. The first ground wiring is provided in a second region located outside the first region, and supplies first ground potential to the plurality of photoelectric conversion elements. The second ground wiring is provided in the second region and supplies second ground potential having a voltage value different from that of the first ground potential to the plurality of current-voltage conversion circuits.

    Clock enabler circuit
    6.
    发明授权

    公开(公告)号:US12126345B2

    公开(公告)日:2024-10-22

    申请号:US17759174

    申请日:2020-10-27

    发明人: Yoshinori Tanaka

    IPC分类号: H03K5/15 H03K5/131 H03K19/096

    摘要: An unnecessary circuit operation in a clock enabler circuit accompanying toggling of a clock signal is suppressed. A state holding unit performs a holding operation of a state as to whether or not to output an output clock signal according to an internal clock signal. A clock signal output unit controls output of the output clock signal according to the state held in the state holding unit. A control unit supplies, to the state holding unit, the internal clock signal and a value of the state that are necessary for the holding operation in the state holding unit on a basis of a clock signal and a clock enable signal from an outside.

    Nitride semiconductor laser device and method of manufacturing nitride semiconductor laser device

    公开(公告)号:US12126142B2

    公开(公告)日:2024-10-22

    申请号:US17292975

    申请日:2019-10-25

    IPC分类号: H01S5/343 H01S5/042 H01S5/22

    摘要: A nitride semiconductor laser device of one embodiment of the present disclosure includes a single-crystal substrate, a base layer, a sheet-shaped structure, a light emitting layer, and a resonator mirror. The single-crystal substrate extends in one direction. The base layer is provided on the single-crystal substrate and includes a nitride semiconductor. The sheet-shaped structure is provided on the base layer to stand in a direction perpendicular to the base layer. The sheet-shaped structure has an area of a side surface that is greater than an area of an upper surface. The side surface extends in a longitudinal direction of the single-crystal substrate. The sheet-shaped structure includes a nitride semiconductor. The light emitting layer is provided at least on the side surface of the sheet-shaped structure. The light emitting layer includes a nitride semiconductor. The resonator mirror is provided by a pair of end surfaces of the sheet-shaped structure that oppose each other in the longitudinal direction.

    IMAGING DEVICE AND ELECTRONIC APPARATUS COMPRISING IMAGING DEVICE

    公开(公告)号:US20240348947A1

    公开(公告)日:2024-10-17

    申请号:US18293862

    申请日:2022-03-24

    IPC分类号: H04N25/772

    CPC分类号: H04N25/772

    摘要: [Problem] An imaging device that can increase the dynamic range of pixel signals is provided.
    [Means of Solution] An imaging device according to an embodiment of the present disclosure includes: a plurality of pixels that are exposed during a same period; and an AD converter that digitizes an analog pixel signal output from each of the plurality of pixels. Further, each of the plurality of pixels includes a photoelectric conversion circuit that photoelectrically converts incident light, a first source follower circuit that amplifies an output signal of the photoelectric conversion circuit, a signal holding circuit that holds an output signal of the first source follower circuit, and a second source follower circuit that amplifies a signal read out from the signal holding circuit and outputs the signal as the pixel signal. Furthermore, a ramp signal including a slope portion in which a voltage level changes like a ramp is supplied to the signal holding circuit.

    SOLID-STATE IMAGING ELEMENT AND IMAGING DEVICE

    公开(公告)号:US20240348943A1

    公开(公告)日:2024-10-17

    申请号:US18630604

    申请日:2024-04-09

    摘要: Solid-state imaging elements are disclosed. In one example, an upstream circuit block generates a predetermined reset level and a plurality of signal levels each corresponding to an exposure amount, and causes capacitive elements, different from each other, to hold them. A selection circuit sequentially performs control to connect the capacitive element in which the reset level is held to a predetermined downstream node, control to disconnect capacitive elements from the downstream node, and control to connect the capacitive element in which any of the plurality of signal levels is held to the downstream node. A downstream reset transistor initializes a level of the downstream node when the capacitive elements are disconnected from the downstream node. A downstream circuit sequentially reads the reset level and the plurality of signal levels via the downstream node.