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    • 2. 发明授权
    • Lighting equipment
    • 照明设备
    • US4381539A
    • 1983-04-26
    • US266146
    • 1981-05-22
    • Shoji Sakurai
    • Shoji Sakurai
    • F21V21/16F21V21/18
    • F21V21/18F21Y2103/33
    • A lighting equipment of pendant type comprising:a plural number of strings strung between a principal body of the lighting equipment and a holding means from which the lighting equipment is to be suspended for suspending the principal body from the holding means such as a ceiling or a beam,a string winder for winding and paying out the plural number of strings in each other related manner for variation of distance from the ceiling to the principal body, the string winder being to be fixed either to the principal body or on the ceiling,string guiding means for guiding each string and disposed with a predetermined distance from each other, corresponding to the string winder.The equipment has always desirable atitude in plan view aspect as well as in elevation view aspect.
    • 一种吊坠式照明器具,其特征在于,包括:串联在照明设备的主体之间的多个串和用于将照明设备悬挂在其上的固定装置,用于将主体悬挂在诸如天花板或 用于卷绕并且相互支撑多个弦的弦乐器,用于从天花板到主体的距离的变化,弦乐器要固定在主体或天花板上,弦 引导装置,用于引导每个串并相对于弦卷绕器彼此以预定距离布置。 该设备在平面图方面以及仰视图方面总是令人满意的。
    • 6. 发明授权
    • Grounded-emitter circuit, and high-frequency receiver and high-frequency transmitter using the same
    • 接地射极电路,高频接收机和高频发射机使用相同
    • US07346324B2
    • 2008-03-18
    • US10921230
    • 2004-08-19
    • Shoji Sakurai
    • Shoji Sakurai
    • H04B1/18
    • H04B1/28
    • A grounded-emitter circuit is composed of a transistor, a first impedance circuit, and a second impedance circuit. The transistor is an NPN transistor, and the base of the transistor is an input terminal of the grounded-emitter circuit. The emitter of the transistor is grounded to GND via the second impedance circuit. The collector of the transistor is connected to a reference voltage source via the first impedance circuit, and is an output terminal of the grounded-emitter circuit. Further, the second impedance circuit is composed of a parallel resonance circuit consisting of an inductor and a capacitor. With this, it is possible to provide a grounded-emitter circuit capable of being built in an IC, and capable of removing an image frequency signal in a simple circuit configuration.
    • 接地发射极电路由晶体管,第一阻抗电路和第二阻抗电路组成。 晶体管是NPN晶体管,晶体管的基极是接地 - 发射极电路的输入端。 晶体管的发射极经由第二阻抗电路接地至GND。 晶体管的集电极通过第一阻抗电路连接到参考电压源,并且是接地 - 发射极电路的输出端。 此外,第二阻抗电路由包括电感器和电容器的并联谐振电路组成。 由此,可以提供能够内置在IC中的接地 - 发射极电路,并且能够以简单的电路配置去除图像频率信号。
    • 7. 发明申请
    • Grounded-emitter circuit, and high-frequency receiver and high-frequency transmitter using the same
    • 接地射极电路,高频接收机和高频发射机使用相同
    • US20050070244A1
    • 2005-03-31
    • US10921230
    • 2004-08-19
    • Shoji Sakurai
    • Shoji Sakurai
    • H03F3/195H04B1/04H04B1/26H04B1/28
    • H04B1/28
    • A grounded-emitter circuit is composed of a transistor, a first impedance circuit, and a second impedance circuit. The transistor is an NPN transistor, and the base of the transistor is an input terminal of the grounded-emitter circuit. The emitter of the transistor is grounded to GND via the second impedance circuit. The collector of the transistor is connected to a reference voltage source via the first impedance circuit, and is an output terminal of the grounded-emitter circuit. Further, the second impedance circuit is composed of a parallel resonance circuit consisting of an inductor and a capacitor. With this, it is possible to provide a grounded-emitter circuit capable of being built in an IC, and capable of removing an image frequency signal in a simple circuit configuration.
    • 接地发射极电路由晶体管,第一阻抗电路和第二阻抗电路组成。 晶体管是NPN晶体管,晶体管的基极是接地 - 发射极电路的输入端。 晶体管的发射极经由第二阻抗电路接地至GND。 晶体管的集电极通过第一阻抗电路连接到参考电压源,并且是接地 - 发射极电路的输出端。 此外,第二阻抗电路由包括电感器和电容器的并联谐振电路组成。 由此,可以提供能够内置在IC中的接地 - 发射极电路,并且能够以简单的电路配置去除图像频率信号。
    • 8. 发明授权
    • Voltage-controlled oscillator and communication apparatus employing the same
    • 压控振荡器及采用该振荡器的通信装置
    • US06731182B2
    • 2004-05-04
    • US10231111
    • 2002-08-30
    • Shoji Sakurai
    • Shoji Sakurai
    • H03B100
    • H03B5/1231H03B5/1215H03B5/1243H03L7/099H03L7/18
    • A conventional voltage-controlled oscillator, when formed as an integrated circuit, suffers from a low Q factor of its resonant portion and thus poor phase noise characteristics. To overcome this, a voltage-controlled oscillator of the invention has a resonant portion including at least one variable-capacitance device and at least one inductor, an active portion including differential pair transistors and supplying electric power to the resonant portion in such a way as not to attenuate the oscillation of the resonant portion, and a current source connected to the emitters or sources of both of the differential pair transistors. The current source is a circuit having a resistor and a capacitive device connected in parallel.
    • 常规的压控振荡器当形成为集成电路时,其谐振部分的Q因子低,因此具有差的相位噪声特性。 为了克服这个原因,本发明的压控振荡器具有包括至少一个可变电容器件和至少一个电感器的谐振部分,包括差分对晶体管的有源部分并且以谐振部分的方式提供电力, 不衰减谐振部分的振荡,以及连接到两个差分对晶体管的发射极或源极的电流源。 电流源是具有并联连接的电阻器和电容器件的电路。
    • 10. 发明申请
    • Receiver
    • 接收器
    • US20050233721A1
    • 2005-10-20
    • US11094274
    • 2005-03-31
    • Shoji Sakurai
    • Shoji Sakurai
    • H04B1/00H04B1/10H04B1/16H04B1/26H04B17/00
    • H04B1/26H04B1/109H04B17/26H04B17/318H04B17/382
    • In a receiver, a mixer portion provided in a front-end portion thereof is built with two mixers with different input/output linearity characteristics and different current consumption. According to the electric-field strength of a received signal, or manually, one of the mixers is chosen to operate so that, when the electric-field strength is in an ordinary range, the mixer with a better input/output linearity characteristic is chosen to operate with lower current consumption and, when the electric-field strength is in a high range, the mixer that, despite operating with higher current consumption, exhibits a still better input/output linearity characteristic is chosen. The receiver thus operates with lower current consumption and lower signal distortion.
    • 在接收机中,设置在其前端部分的混合器部分由具有不同输入/输出线性特性和不同电流消耗的两个混频器构成。 根据接收信号的电场强度,或者手动地选择混频器之一进行操作,使得当电场强度在普通范围内时,选择具有更好的输入/输出线性特性的混频器 以较低的电流消耗运行,并且当电场强度处于高范围时,尽管以较高的电流消耗操作,但是选择了更好的输入/输出线性特性的混频器。 因此,接收器以较低的电流消耗和较低的信号失真操作。