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    • 1. 发明授权
    • Direct coupling type power amplifier circuit
    • 直接耦合型功率放大电路
    • US4063185A
    • 1977-12-13
    • US766725
    • 1977-02-08
    • Shinichi KojimaYoshio Sakamoto
    • Shinichi KojimaYoshio Sakamoto
    • H03F1/00H03F1/30H03F3/183H03F3/20H03F3/30H03F3/34H03F3/343H03F3/45H03F3/04
    • H03F3/343H03F1/305H03F3/30
    • In a direct coupling type power amplifier circuit comprising an input differential amplifier stage, a drive amplifier stage responsive to the output signal of the input differential amplifier stage dc-wise and ac-wise, and a push-pull output amplifier stage responsive to the output signal of the drive amplifier stage dc-wise and ac-wise, the input differential amplifier stage being supplied at one input electrode thereof with an input signal and at the other input electrode thereof with the output of the push-pull output amplifier stage through a negative feedback circuit network, the power amplifier circuit further comprises a bias circuit network for defining the dc bias current through the input differential amplifier stage and a delay circuit coupled between the bias circuit network and a power source voltage supply point. With this circuit arrangement, the dc bias current through the input differential amplifier stage is cut off to hold the whole power amplifier circuit non-responsive to the input signal during a predetermined time internal after the application of the power source voltage to the power source voltage supply point, the predetermined time interval being substantially determined by a predetermined delay time in the delay circuit and a predetermined constant voltage value of a constant voltage circuit component in the bias circuit network.
    • 在包括输入差分放大器级的直接耦合型功率放大器电路中,响应于输入差分放大器级的直流和交和的输出信号的驱动放大器级以及响应输出的推挽输出放大器级 驱动放大器级的信号通过直流和交流方式输入,输入差分放大器级在其一个输入电极处被提供有输入信号,并且在其另一个输入电极处通过一个 负反馈电路网络,功率放大器电路还包括用于限定通过输入差分放大器级的直流偏置电流的偏置电路网络和耦合在偏置电路网络和电源电压供应点之间的延迟电路。 利用该电路装置,通过输入差分放大器级的直流偏置电流被切断,以在将电源电压施加到电源电压之后的预定时间期间保持整个功率放大器电路对输入信号无响应 供给点,预定时间间隔基本上由延迟电路中的预定延迟时间和偏置电路网络中的恒定电压电路部件的预定恒定电压值确定。
    • 3. 发明申请
    • Storage medium storing program and information processing apparatus
    • 存储介质存储程序和信息处理装置
    • US20090064022A1
    • 2009-03-05
    • US12081735
    • 2008-04-21
    • Yoshio SakamotoKaoru Kita
    • Yoshio SakamotoKaoru Kita
    • G06F3/048
    • G06F3/048
    • An information processing apparatus includes an LCD and a touch panel, for example. On the LCD, a plurality of operation items making up of a series of operating procedures by means of a touch panel are displayed, and a current operation item out of them is highlight. Whether or not the current operation item is executed is determined on the basis of coordinate data via the touch panel, and whether or not a state attained by execution of a previous operation item has not been maintained is determined. In a case that it is determined that the previous operation item has not been maintained, the display of the current operation item is changed to a normal manner.
    • 信息处理装置例如包括LCD和触摸面板。 在LCD上,显示通过触摸面板构成一系列操作程序的多个操作项目,并且其中的当前操作项目突出显示。 基于经由触摸面板的坐标数据确定当前操作项目是否被执行,并且确定是否还没有保持执行以前的操作项目所获得的状态。 在确定以前的操作项目未被保持的情况下,将当前操作项目的显示改变为正常的方式。
    • 5. 发明授权
    • Method of hot-press molding polyparaphenyleneterephthalamide film
    • 热压成型聚对苯二甲酰对苯二胺膜的方法
    • US5837176A
    • 1998-11-17
    • US610841
    • 1996-03-05
    • Yoshio Sakamoto
    • Yoshio Sakamoto
    • B29C51/08B29C35/02B29C51/00B29C51/18B29C51/26B29K77/00B29L31/38H04R7/02H04R31/00B29C43/04
    • B29C51/002B29C51/18B29C2035/0211B29C51/082
    • A film molding method and apparatus capable of shortening a mold cycle time and obtaining a molded product of an excellent quality. A method of hot-press molding a polyparaphenyleneterephthalamide (PPTA) film into a predetermined shape includes a first step of evaporating water from a PPTA film containing water at least 50% or more as a swelling agent, and obtaining an amorphous film having a density less than a predetermined density and a modulus in tension of about 70%; and a second process of hot-press molding the film for a predetermined time period by metal molds heated up to at least 330.degree. C. to crystallize the film to have a predetermined density specific to a PPTA film and produce an intrinsic physical value, and obtaining a molded product of the film. A film molding apparatus for performing the film molding method includes holes or slits opening at the surface of each of the metal molds, and an air suction unit and an air exhaust unit provided for each of the metal molds.
    • 一种能够缩短模具循环时间并获得优质品质的成型品的薄膜成型方法和装置。 将聚对苯二甲酰对苯二甲酰胺(PPTA)膜热压成型为规定形状的方法包括:将来自含有至少50%以上的水的PPTA膜作为溶胀剂蒸发水的第一工序,得到密度较小的非晶膜 比预定密度和拉伸模量大约70%; 以及通过加热到至少330℃的金属模具将薄膜热压成型预定时间段的第二过程,以使膜结晶以具有对PPTA膜特有的预定密度并产生固有的物理值,以及 获得该膜的模制产品。 用于执行膜成型方法的成膜装置包括在每个金属模具的表面处开口的孔或狭缝,以及为每个金属模具设置的吸气单元和排气单元。
    • 6. 发明授权
    • Terminal for speaker
    • 扬声器终端
    • US5757945A
    • 1998-05-26
    • US630782
    • 1996-04-10
    • Yoshio Sakamoto
    • Yoshio Sakamoto
    • H04R9/06H04R25/00
    • H04R9/06
    • A speaker, and its manufacturing method, is disclosed where the speaker includes a speaker component of an integral structure which has a damper made of a base member having concentric corrugations and an opening formed generally at the center thereof and a tinsel wire being disposed around the corrugations, a ring member made of insulating material mounted on the damper, and a voice coil bobbin inserted into the opening of the damper and having a wound coil electrically connected to one end of the tinsel wire. The speaker further includes a terminal lug mounted on the ring member and terminally connected to an end of an input lead wire at one end and to the tinsel wire at the other end, a diaphragm that is coupled to the voice coil bobbin, a speaker frame, and a magnetic circuit fixed to the speaker frame. This speaker and its method of manufacture provide an improved speaker having a damper with a conductive member, reducing the man power required for mounting the input terminal, and improving the quality of the product.
    • 一种扬声器及其制造方法,其中扬声器包括具有整体结构的扬声器部件,该扬声器部件具有阻尼器,该阻尼器由具有同心波纹的基座部件和大致在其中心形成的开口部构成, 波纹,安装在阻尼器上的由绝缘材料制成的环件,以及插入阻尼器的开口中并具有与金属丝的一端电连接的缠绕线圈的音圈绕线器。 扬声器还包括安装在环形构件上并终端连接到一端的输入引线的端部和另一端的金属丝线的端子凸耳,耦合到音圈骨架的隔膜,扬声器框架 和固定在扬声器框架上的磁路。 该扬声器及其制造方法提供了具有导电构件的阻尼器的改进的扬声器,减少了安装输入端所需的人力,并提高了产品的质量。
    • 8. 发明授权
    • Wide-band antenna and tuning method
    • 宽带天线和调谐方法
    • US5990841A
    • 1999-11-23
    • US124336
    • 1998-07-28
    • Yoshio SakamotoYoshitsune IitsukaMakoto Yamaguchi
    • Yoshio SakamotoYoshitsune IitsukaMakoto Yamaguchi
    • H01Q1/36H01Q9/30H01Q11/08H01Q9/00
    • H01Q11/08H01Q1/362H01Q9/30
    • An antenna that comprises a rod, a movable coil, and a holding section which holds the movable coil in a manner that allows the movable coil to slide in and out of the holding section. When the movable coil is drawn into the holding section, the holding section tunes to a particular desired frequencies in the upper portion of the VHF band and the UHF band; for example, 144 MHz and 430 MHz. When the movable coil is out of the holding section, the holding section, the rod, and the portion of the movable coil outside the holding section form antenna element of a center-loading type that tunes to frequencies in the HF band and the lower portion of the VHF band; for example, frequencies in the range of 3MHz to 50MHz. The tuning frequency is varied by sliding the position of the coil.
    • 一种天线,包括杆,可动线圈和保持部,其以允许可动线圈滑入和移出保持部的方式保持可动线圈。 当可动线圈被拉入保持部分时,保持部分调谐到VHF频带和UHF频带上部的特定期望频率; 例如,144MHz和430MHz。 当可动线圈离开保持部分时,保持部分,杆和可动线圈部分在保持部分外部形成中心负载型的天线元件,其调谐到HF频带中的频率和下部 的VHF频带; 例如,频率在3MHz至50MHz的范围内。 通过滑动线圈的位置来改变调谐频率。
    • 9. 发明授权
    • Speaker component, speaker, and its manufacturing method
    • 扬声器组件,扬声器及其制造方法
    • US5850462A
    • 1998-12-15
    • US572073
    • 1995-12-14
    • Yoshio SakamotoItsuki Kawabata
    • Yoshio SakamotoItsuki Kawabata
    • H04R9/02H04R1/06H04R7/16H04R9/04H04R31/00H04R1/00H04R9/06H04R11/02
    • H04R31/006H04R1/06H04R7/16H04R9/045
    • A speaker and its manufacturing method capable of reducing a man power required for mounting an input terminal and improving the product quality. The speaker manufacturing method uses a damper with a conductive member made of flat knitted tinsel wires loaded on or in a woven cloth. A terminal ring made of insulating material is mounted on the damper with the conductive member at its adhesive margin formed on the outer circumference portion. Input terminal lugs are mounted on the terminal ring. A voice coil is mounted on the damper with the conductive member and terminal ring. Input copper foil electrodes formed on the outer circumference of a coil bobbin of the voice coil is electrically connected to the end portions of the flat knitted tinsel wires extending to the inner hole of the damper with the conductive member. The terminal lugs are electrically connected to the ends of the flat knitted tinsel wires extending to the outer circumference of the damper with the conductive member. The coupling area between the damper with the conductive member and the voice coil or coil bobbin is adhered by adhesive or the like to form an integrated ring assembly. The ring assembly is supplied to a speaker manufacturing line to assemble a speaker.
    • 一种扬声器及其制造方法,能够降低安装输入端所需的人力和提高产品质量。 扬声器制造方法使用带有由编织布上装载的平纹针织金属丝构成的导电构件的阻尼器。 由绝缘材料构成的端子环安装在阻尼器上,导电构件在其外周部分上形成的粘合剂边缘处。 输入接线端子安装在端子环上。 音圈安装在阻尼器上,导电件和端子环。 形成在音圈的线圈架的外圆周上的输入铜箔电极通过导电构件电连接到延伸到阻尼器的内孔的扁平针织金属丝的端部。 端子凸耳通过导电构件电连接到延伸到阻尼器的外圆周的扁平针织金属丝的端部。 具有导电构件的阻尼器与音圈或线圈架之间的耦合区域通过粘合剂等粘合以形成一体的环组件。 环组件被提供给扬声器制造线以组装扬声器。