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    • 113. 发明授权
    • Active filter control apparatus
    • 有源滤波器控制装置
    • US5572163A
    • 1996-11-05
    • US362874
    • 1994-12-23
    • Hiroshi KimuraRyutaro HoritaKenichi HaseKunio WatanabeTakashi Nara
    • Hiroshi KimuraRyutaro HoritaKenichi HaseKunio WatanabeTakashi Nara
    • H03H11/04H03B5/00
    • H03H11/0472H03H11/0433H03H2210/023
    • An active filter control apparatus for controlling or tuning an active filter having a variable cut-off frequency. The active filter control apparatus includes a control circuit for controlling or tuning the cut-off frequency of the active filter and a characteristic correction generator for generating a correction signal to correct a group delay characteristic of the active filter in accordance with a set cut-off frequency. The characteristic correction includes a correction signal generator for generating the correction signal in accordance with a set correction amount. The cut-off frequency controller controls tunes the characteristic of the active filter in accordance with the correction signal. Preferably, the apparatus is formed of a one-chip LSI integrated on one chip. The control apparatus can be utilized to control the speed in a recording/reproducing apparatus such as a optical disk drive or a magnetic tape drive apparatus.
    • 一种用于控制或调谐具有可变截止频率的有源滤波器的有源滤波器控制装置。 有源滤波器控制装置包括用于控制或调谐有源滤波器的截止频率的控制电路和用于根据设定的截止产生校正信号校正有源滤波器的组延迟特性的特性校正发生器 频率。 特征校正包括用于根据设定的校正量产生校正信号的校正信号发生器。 截止频率控制器根据校正信号控制有源滤波器的特性。 优选地,该装置由集成在一个芯片上的单芯片LSI形成。 控制装置可以用于控制诸如光盘驱动器或磁带驱动装置的记录/再现装置中的速度。
    • 114. 发明授权
    • Electrical connector with rotatable locking ring
    • 带可旋转锁定环的电气连接器
    • US5181860A
    • 1993-01-26
    • US675253
    • 1991-03-26
    • Kazuhiro HonmaKunio WatanabeTakeshi MoritaShingo Nanao
    • Kazuhiro HonmaKunio WatanabeTakeshi MoritaShingo Nanao
    • H01R13/623H01R13/639
    • H01R13/639H01R13/623
    • An electrical connector includes a plug connector having a plug shell formed with a flange and a receptacle connector having a receptacle shell provided on its outer circumference with a fitting device. The electrical connector further includes a coupling ring surrounding the plug shell and rotatable and holding the flange of the plug shell. The coupling ring has on its inner circumference a fitting device fitted with the first mentioned fitting device and a flange urging portion for urging the flange, and a key provided between the receptacle shell and the plug shell for preventing relative rotation therebetween. The electrical connector includes at least one wave-shaped annular spring interposed between the flange and the flange urging portion and rotatable together with the coupling ring. The wave-shaped annular ring and the flange are formed in their opposed surfaces with at least one protrusion and at least one recess, respectively, which are detachably fitted with each other, thereby forming a click lock device for causing the protrusion to fall into the recesses to produce click sound when the plug connector and the receptacle connector have been fitted.In an alternate embodiment, the electrical connector has some contacts connected to earth circuits which comprise earth lugs.
    • 电连接器包括具有形成有凸缘的插头壳和插座连接器的插头连接器,插座连接器具有在其外圆周上设置有插入装置的插座壳体。 电连接器还包括围绕插头外壳并可旋转并保持插头外壳的凸缘的联接环。 联接环在其内周上具有装配有第一所述装配装置的装配装置和用于推动凸缘的凸缘推动部分,以及设置在插座壳体和插塞壳体之间的钥匙,用于防止它们之间的相对旋转。 电连接器包括至少一个波形环形弹簧,其插入在凸缘和凸缘推动部分之间并与联接环一起旋转。 波形环形环和凸缘在其相对表面上分别形成有至少一个突起和至少一个凹部,该凹部彼此可拆卸地配合,从而形成用于使突起落入 当安装插头连接器和插座连接器时,产生点击声的凹槽。 在替代实施例中,电连接器具有连接到包括接地片的接地电路的一些触点。
    • 117. 发明授权
    • Liquid jet recording head with permanent jig alignment
    • 具有永久夹具对准的液体喷射记录头
    • US4288799A
    • 1981-09-08
    • US148269
    • 1980-05-09
    • Shunichi UzawaShigeyuki MatsumotoMinoru MiyazakiAkio IijimaKunio Watanabe
    • Shunichi UzawaShigeyuki MatsumotoMinoru MiyazakiAkio IijimaKunio Watanabe
    • B41J2/01B41J2/045B41J2/055B41J2/14B41J2/155G01D15/18
    • B41J2/155B41J2/1429B41J2202/19
    • A liquid jet recording head used for a liquid jet recording device conducting recording by projecting a liquid droplet to a predetermined direction comprises recording head elements each of which comprises an inflow port side end portion having an inflow port for the liquid, an ejecting orifice side end portion having an ejecting orifice for ejecting the liquid at the end, a pressure generating portion existing between the inflow port side end portion and the ejecting orifice side end portion and communicating with them, and an electromechanical transducer connected to the pressure generating portion and capable of changing the inner pressure of the liquid in the pressure generating portion; and a jig comprising grooves for fixing the recording head elements and electric contacts for applying electric signals to the electromechanical transducer, the recording head element being pressed from two directions to be fixed to the groove and an electric contact being established between the electromechanical transducer and the jig.
    • 用于通过将液滴投射到预定方向进行记录的液体喷射记录装置的液体喷射记录头包括记录头元件,每个记录头元件包括具有用于液体的流入口的流入端侧端部,喷射口侧端 具有用于在端部喷射液体的喷射孔的部分,存在于流入口侧端部和喷射孔侧端部之间并与其连通的压力产生部分,以及连接到压力产生部分的机电换能器,并且能够 改变压力产生部分中的液体的内部压力; 以及夹具,其包括用于固定记录头元件的凹槽和用于向机电换能器施加电信号的电触点,记录头元件从两个方向被按压以固定到凹槽,并且在机电换能器和 夹具