中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

481 records (took 0.03 seconds)

    Control of vibration energisation
    172.
    发明公开
    Control of vibration energisation 失效
    控制振动能量

    公开(公告)号：EP0216579A3

    公开(公告)日：1987-09-30

    申请号：EP86307016

    申请日：1986-09-11

    Applicant: NATIONAL RESEARCH DEVELOPMENT CORPORATION

    Inventor： MacCracken, William Cawdor ,  Waddell, Alexander John

    IPC: B06B01/02

    CPC classification number: B06B1/0261 ,  B06B2201/53 ,  B06B2201/70

    Abstract: An arrangement to controllably vibrate a resiliently supported body (10) including electromagnetic drive means (20) energisable to vibrate the body (10), means (30) to control the drive means, means (5) to detect the actual vibration of the body (10), the control means (30) including digital signal processing means to produce a control pulse train representing a required phase difference from the detected vibration to control the energisation of the drive means (20) with an independently set phase difference from the detected frequency to sustain the vibration of the body (10).

    Motor drive signal generation system, semiconductor device, and electronic apparatus
    174.
    发明专利
    Motor drive signal generation system, semiconductor device, and electronic apparatus 有权
    电机驱动信号发生系统，半导体器件和电子设备

    公开(公告)号：JP2014023427A

    公开(公告)日：2014-02-03

    申请号：JP2013141676

    申请日：2013-07-05

    Applicant: Samsung Electronics Co Ltd ,  三星電子株式会社Samsung Electronics Co.,Ltd.

    Inventor： HAN YUN-CHEOL ,  KIM JI-HYUN

    IPC: H02P7/06

    CPC classification number: G08B6/00 ,  B06B1/0215 ,  B06B1/045 ,  B06B2201/70

    Abstract: PROBLEM TO BE SOLVED: To provide a motor drive signal generation system.SOLUTION: A motor drive signal generation system includes: a voltage distributor for generating a reference voltage by distributing a supply voltage according to a setting; a first control part in which a first input signal which is an analog signal is provided, the first input signal is initialized, and a magnitude of the first input signal is varied in step of a first level so that a first output signal whose magnitude is larger than the reference voltage is outputted; and a second control part in which the first output signal is provided, the first output signal is initialized, and the magnitude of the first output signal is varied in step of a second level which is smaller than the first level, and a second output signal is generated whose magnitude is closer to the reference voltage than the first output signal. The first control part includes a first control logic in which the first output signal is provided, and the magnitude of the first output signal is compared with the reference voltage, for outputting a gain control signal consisting of n-bit, and a first gain adjusting part in which the gain control signal is applied and the magnitude of the first input signal is varied in step of the first level.

    Abstract translation: 要解决的问题：提供一种电动机驱动信号发生系统。电动机驱动信号发生系统包括：电压分配器，用于根据设定分配电源电压产生参考电压; 提供作为模拟信号的第一输入信号的第一控制部分，第一输入信号被初始化，并且第一输入信号的幅度在第一电平的步长中变化，使得其幅度大小的第一输出信号 大于参考电压输出; 以及第二控制部分，其中提供第一输出信号，第一输出信号被初始化，并且第一输出信号的幅度在小于第一电平的第二电平的步长中变化，第二输出信号 产生其幅度比第一输出信号更接近基准电压。 第一控制部分包括第一控制逻辑，其中提供第一输出信号，并且将第一输出信号的幅度与参考电压进行比较，以输出由n位组成的增益控制信号和第一增益调整 其中施加增益控制信号的部分和第一输入信号的幅度在第一级的步骤中变化。

    Sound generator
    175.
    发明专利
    Sound generator 有权

    公开(公告)号：JP5287888B2

    公开(公告)日：2013-09-11

    申请号：JP2011017961

    申请日：2011-01-31

    Applicant: 株式会社デンソー

    Inventor： 利明 中山 ,  俊男 林 ,  公二 桜井

    IPC: B60Q5/00 ,  G10K15/04

    CPC classification number: H04R3/04 ,  B06B1/0276 ,  B06B2201/53 ,  B06B2201/70 ,  H04R2499/13

    Abstract: A sound wave generator includes a speaker control circuit and a speaker. The speaker control circuit includes a signal generating unit that is configured to generate an electric signal having a humming frequency property. The humming frequency property includes a plurality of frequencies that have an overtone relationship with respect to A Hz and are pitched at the A Hz, the A Hz being a target generation frequency and corresponding to a low pitch frequency in an audible range. The speaker generates a sound wave from the electric signal by applying the electric signal to a vibration plate that produces the sound wave.

    Vehicle approach notification device and program
    176.
    发明专利
    Vehicle approach notification device and program 审中-公开
    车辆方法通知装置和程序

    公开(公告)号：JP2013014286A

    公开(公告)日：2013-01-24

    申请号：JP2011149947

    申请日：2011-07-06

    Applicant: Casio Computer Co Ltd ,  カシオ計算機株式会社

    Inventor： TERAO TAKESHI

    IPC: B60Q5/00

    CPC classification number: B06B1/0207 ,  B06B2201/70 ,  B60Q5/008

    Abstract: PROBLEM TO BE SOLVED: To provide a vehicle approach notification device that emits alarm sound which is not lost among environmental noise in a noisy place without generating unnecessarily loud noise in a quiet place.SOLUTION: A DSP 13 subtracts sound pressure Pgen of alarm sound from octave band sound pressure Pout including the alarm sound in octave band sound pressures P1-P8 of central frequencies f1-f8 obtained by octave analysis of the environmental noise containing the alarm sound, to obtain octave band characteristics only of the environmental noise. The octave band (central frequency fmin) of the minimum sound pressure of the environmental noise and a sound pressure Pmax of the octave band (central frequency fmax) of the maximum sound pressure of the environmental noise are detected, from the octave band characteristics only of the environmental noise. In the octave band (central frequency fmin) of the minimum sound pressure of the environmental noise, an output waveform (alarm sound data) of the sound pressure Pgen which is substantially the same as the sound pressure Pmax of the octave band (central frequency fmax) of the maximum sound pressure of the environmental noise.

    Abstract translation: 要解决的问题：提供一种车辆进场通知装置，其在嘈杂的地方发出不会在环境噪声中丢失的警报声音，而在安静的地方不产生不必要的大噪声。 解决方案：DSP 13从包含警报的环境噪声的八度分析得到的中频f1-f8的倍频带声压P1-P8中减去来自倍频带声压Pout的报警声音的声压Pgen 声音，以获得仅有环境噪声的八度波段特性。 从环境噪声的最大声压的最大声压的倍频程频带（中心频率fmin）和环境噪声的最大声压的倍频带的声压Pmax（中心频率fmax），仅从 环境噪音。 在环境噪声的最小声压的八度频带（中心频率fmin）中，声压Pgen的输出波形（警报声音数据）与倍频程带的声压Pmax基本相同（中心频率fmax ）环境噪声的最大声压。 版权所有（C）2013，JPO＆INPIT

    Ultrasonic sensor
    177.
    发明专利
    Ultrasonic sensor 有权
    超声波传感器

    公开(公告)号：JP2010239346A

    公开(公告)日：2010-10-21

    申请号：JP2009084314

    申请日：2009-03-31

    Applicant: Denso Corp ,  株式会社デンソー

    Inventor： TERASAWA HIDETO

    IPC: H04R17/00 ,  H04R3/00

    CPC classification number: G01S15/931 ,  B06B1/0284 ,  B06B2201/70 ,  G01S7/52003 ,  G01S7/524 ,  G01S2015/938

    Abstract: PROBLEM TO BE SOLVED: To more easily switch, in one ultrasonic sensor, a plurality of superior directivity characteristics of respectively different ranges. SOLUTION: An ultrasonic sensor includes a single ultrasonic microphone 11, a drive circuit 15, an inductor L2 and a capacitor C2. The single ultrasonic microphone 11 includes a single combination of an equivalent series capacitor C1, an equivalent series inductor L1 and an equivalent series resistor R1 and an equivalent parallel capacitor C0. The inductor L2 is connected in series between the ultrasonic microphone 11 and the drive circuit 15, and the capacitor C2 is connected in parallel to the ultrasonic microphone 11. The ultrasonic microphone 11 is driven, while alternately switching the driving frequency of the ultrasonic microphone, when the resonant frequency of the equivalent series capacitor C1 and the equivalent series inductor L1 is defined as F0; and the resonance frequency of the equivalent parallel capacitor C0, the capacitor C2 and the inductor L2 is defined as Fp, between the same value as F0 and the same value as Fp. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：为了更容易地在一个超声波传感器中切换分别不同范围的多个优异的方向性特性。 解决方案：超声波传感器包括单个超声波麦克风11，驱动电路15，电感器L2和电容器C2。 单个超声波麦克风11包括等效串联电容器C1，等效串联电感器L1和等效串联电阻器R1和等效并联电容器C0的单一组合。 电感器L2串联连接在超声波麦克风11和驱动电路15之间，并且电容器C2与超声波麦克风11并联连接。超声波麦克风11被驱动，同时交替切换超声麦克风的驱动频率， 当等效串联电容器C1和等效串联电感器L1的谐振频率定义为F0时; 并且等效并联电容器C0，电容器C2和电感器L2的谐振频率被定义为与F0相同的值和与Fp相同的值的Fp。 版权所有（C）2011，JPO＆INPIT

Patent Agency Ranking