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    Semiconductor device having semiconductor column portions
    1.
    发明授权
    Semiconductor device having semiconductor column portions 有权

    公开(公告)号：US12302600B2

    公开(公告)日：2025-05-13

    申请号：US17868806

    申请日：2022-07-20

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Hiroyuki Shimada

    IPC: H01L21/70 ,  H10D30/63 ,  H10D30/67 ,  H10D62/10 ,  H10D64/20 ,  H10D64/23

    Abstract: A semiconductor device includes a plurality of column portions made of a semiconductor. The plurality of column portions each include a source region, a drain region, and a channel formation region including a channel formed between the source region and the drain region. The semiconductor device further includes: a gate electrode provided at a side wall of the channel formation region with an insulating layer being interposed between the gate electrode and the side wall; a first semiconductor layer coupled to either one of the source region and the drain region of each of the plurality of column portions; and a first metal layer coupled to the first semiconductor layer.

    TIMING SIGNAL GENERATING DEVICE, ELECTRONIC APPARATUS, MOVING OBJECT, METHOD OF GENERATING TIMING SIGNALS, AND METHOD OF CONTROLLING SATELLITE SIGNAL RECEIVER
    2.
    发明申请
    TIMING SIGNAL GENERATING DEVICE, ELECTRONIC APPARATUS, MOVING OBJECT, METHOD OF GENERATING TIMING SIGNALS, AND METHOD OF CONTROLLING SATELLITE SIGNAL RECEIVER 有权
    时序信号发生装置，电子装置，移动对象，产生时序信号的方法和控制卫星信号接收机的方法

    公开(公告)号：US20140203963A1

    公开(公告)日：2014-07-24

    申请号：US14153463

    申请日：2014-01-13

    Applicant: Seiko Epson Corporation

    Inventor： Hiroyuki Shimada ,  Yoshiyuki Maki ,  Noriaki Tanaka

    IPC: G01S19/13

    CPC classification number: G04R40/02 ,  G04F5/145

    Abstract: A timing signal generating device includes a GPS receiver and a processing unit. The GPS receiver functions as a positioning calculation unit, and receives satellite signals transmitted from GPS satellites and performs positioning calculation based on trajectory information and time information contained in the received satellite signals. Further, the processing unit functions as a position information generation unit, and generates position information of a receiving point based on a mode value or a median value in results of the positioning calculation at a plurality of times by the GPS receiver.

    Abstract translation: 定时信号发生装置包括GPS接收机和处理单元。 GPS接收机用作定位计算单元，并且接收从GPS卫星发送的卫星信号，并且基于接收的卫星信号中包含的轨迹信息和时间信息执行定位计算。 此外，处理单元用作位置信息生成单元，并且通过GPS接收器多次地基于位置计算的结果中的模式值或中值来生成接收点的位置信息。

    Timing signal generation device, electronic device, and moving object
    3.
    发明授权
    Timing signal generation device, electronic device, and moving object 有权

    公开(公告)号：US10312924B2

    公开(公告)日：2019-06-04

    申请号：US15378440

    申请日：2016-12-14

    Applicant: Seiko Epson Corporation

    Inventor： Yoshiyuki Maki ,  Hiroyuki Shimada

    IPC: G04F5/14 ,  H03L1/02 ,  H03L7/26 ,  G01S19/37 ,  H03L7/099 ,  H03L7/183 ,  G01S19/14 ,  G01S19/39

    Abstract: A timing signal generation device includes a GPS receiver, an atomic oscillator, a phase comparator, a loop filter, and a divider, a temperature sensor, a DDS, and a DSP. The GPS receiver outputs a reference timing signal. The atomic oscillator outputs a clock signal in accordance with an input voltage value. The phase comparator, the loop filter, and the divider adjust the voltage value in accordance with a synchronization status between the reference timing signal and the clock signal. The temperature sensor outputs a signal depending on the temperature of the atomic oscillator. The DDS converts the frequency of the clock signal and outputs a signal obtained by converting the frequency. The DSP controls the DDS based on an output of the temperature sensor.

    Timing signal generation device and electronic apparatus
    4.
    发明授权
    Timing signal generation device and electronic apparatus 有权

    公开(公告)号：US10782415B2

    公开(公告)日：2020-09-22

    申请号：US15064847

    申请日：2016-03-09

    Applicant: Seiko Epson Corporation

    Inventor： Yoshiyuki Maki ,  Hiroyuki Shimada

    IPC: G01S19/37 ,  G01S19/14

    Abstract: A timing signal generation device includes: an output terminal that outputs a standard signal; a first standard signal generation unit that generates a first standard signal based on a reference signal input from outside; a second standard signal generation unit that generates a second standard signal based on a signal output from an oscillator; and a control unit that switches the standard signal output from the output terminal from the first standard signal to the second standard signal based on prior information indicating that accuracy of the reference signal deteriorates.

    Light emitting apparatus and projector
    6.
    发明授权
    Light emitting apparatus and projector 有权

    公开(公告)号：US11955582B2

    公开(公告)日：2024-04-09

    申请号：US17186080

    申请日：2021-02-26

    Applicant: Seiko Epson Corporation ,  Sophia School Corporation

    Inventor： Hiroyuki Shimada ,  Katsumi Kishino

    IPC: H01L33/32 ,  G03B21/20 ,  H01L33/38 ,  H01L33/54

    CPC classification number: H01L33/32 ,  G03B21/2033 ,  H01L33/38 ,  H01L33/54

    Abstract: A light emitting apparatus includes a substrate, a laminated structure provided at the substrate and including a plurality of columnar sections, and an electrode provided on the side opposite the substrate with respect to the laminated structure and injecting current into the laminated structure. The columnar sections each include an n-type first GaN layer, a p-type second GaN layer, and a light emitting layer provided between the first GaN layer and the second GaN layer. The first GaN layers are provided between the light emitting layers and the substrate. The laminated structure includes a p-type first AlGaN layer. The first AlGaN layer includes a first section provided between the second GaN layers of the columnar sections adjacent to each other and a second section provided between the first section and the electrode and between the columnar sections and the electrode.

    Timing signal generation device, electronic device, and moving object
    9.
    发明授权
    Timing signal generation device, electronic device, and moving object 有权

    公开(公告)号：US10187074B2

    公开(公告)日：2019-01-22

    申请号：US15383253

    申请日：2016-12-19

    Applicant: Seiko Epson Corporation

    Inventor： Hiroyuki Shimada

    IPC: H03L7/26 ,  H03B17/00 ,  G01S19/37 ,  H03L1/02 ,  H03L7/23 ,  H03L7/099

    Abstract: A timing signal generation device includes a PLL circuit that synchronizes a first clock signal of an atomic oscillator with a reference timing signal of a GPS receiver, a PLL circuit that synchronizes a second clock signal of an oven-controlled crystal oscillator with the first clock signal, a first count reset unit that enables resetting of a count value of a divider in the PLL circuit when an operation of the PLL circuit is restarted, and a second count reset unit that enables resetting of a count value of a divider in the PLL circuit when the operation of the PLL circuit is restarted.

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