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1. 发明授权

US06829441B2 Driver circuit and optical-transmission module 失效
标题翻译：驱动电路和光传输模块
公开(公告)号：US06829441B2
公开(公告)日：2004-12-07
申请号：US10455411
申请日：2003-06-06
申请人： Norio Chujo , Yoshihiko Hayashi , Akio Osaki , Naohiko Baba
发明人： Norio Chujo , Yoshihiko Hayashi , Akio Osaki , Naohiko Baba
IPC分类号： H04B1004
CPC分类号： H04L25/0282 , H04B10/504 , H04B10/564
摘要： A driver circuit comprises a first differential-amplifier circuit having a pair of first transistors with emitters thereof connected to each other and a first resistor provided between an emitter connection point of the first transistors and a first power supply. Different electric potentials are applied to the bases of the pair of the first transistors to set a ratio of a current flowing through one of the pair of the first transistors to a current flowing through the other first transistor at about 1/100 or smaller. An amplitude of an output current is controlled by the higher of the electric potentials applied to the base of one of the first transistors.
摘要翻译：驱动器电路包括具有一对第一晶体管的第一差分放大器电路，其中发射极彼此连接，第一电阻器设置在第一晶体管的发射极连接点与第一电源之间。不同的电位被施加到一对第一晶体管的基极，以将流过一对第一晶体管中的电流的电流与流过另一个第一晶体管的电流的比率约为1/100或更小。输出电流的幅度由施加到第一晶体管之一的基极的较高电位来控制。

2. 发明授权

US06606177B1 Driver circuit and optical-transmission module 失效
公开(公告)号：US06606177B1
公开(公告)日：2003-08-12
申请号：US09392566
申请日：1999-09-09
申请人： Norio Chujo , Yoshihiko Hayashi , Akio Osaki , Naohiko Baba
发明人： Norio Chujo , Yoshihiko Hayashi , Akio Osaki , Naohiko Baba
IPC分类号： H04B1004
CPC分类号： H04L25/0282 , H04B10/504 , H04B10/564
摘要： A driver circuit comprises a first differential-amplifier circuit having a pair of first transistors with emitters thereof connected to each other and a first resistor provided between an emitter connection point of the first transistors and a first power supply. Different electric potentials are applied to the bases of the pair of the first transistors to set a ratio of a current flowing through one of the pair of the first transistors to a current flowing through the other first transistor at about {fraction (1/100)} or smaller. An amplitude of an output current is controlled by the higher of the electric potentials applied to the base of one of the first transistors.

3. 发明授权

US5541553A Amplifier with a function for switching on and off the output signal 失效
标题翻译：具有打开和关闭输出信号功能的放大器
公开(公告)号：US5541553A
公开(公告)日：1996-07-30
申请号：US398678
申请日：1995-03-06
申请人： Norio Chujo , Yoshihiko Hayashi , Akio Osaki
发明人： Norio Chujo , Yoshihiko Hayashi , Akio Osaki
IPC分类号： G01R31/28 , G01R31/319 , H03F1/52 , H03F3/72 , H03K17/615 , H03K17/687 , H03F3/04 , G01R31/02
CPC分类号： H03K17/687 , H03F1/52 , H03F3/72 , H03K17/615
摘要： An amplifier which performs the function of switching on and off its output signal includes an inverted Darlington circuit made up of an input transistor and an output transistor, a first switching circuit connected across the base and the emitter of the output transistor, and a second switching circuit connected between the emitter of the input transistor and the collector of the output transistor. Amplifier also includes means for opening the first switching circuit and closing the second switching circuit to send out an output signal, and for closing the first switching circuit and opening the second switching circuit to stop the output signal. The input and output transistors may be fabricated using vipolar or MOSFET technology because current of a small magnitude flows through the switching circuits, the switching circuits can be formed from elements that are small in size and which have small parasitic capacitance. Consequently, amplifier is capable of operating at high speeds but with low power demands. In addition, amplifier can be miniaturized or formed on a single IC chip.
摘要翻译：执行打开和关闭其输出信号的功能的放大器包括由输入晶体管和输出晶体管组成的反向达林顿电路，连接在输出晶体管的基极和发射极之间的第一开关电路，以及第二开关连接在输入晶体管的发射极和输出晶体管的集电极之间的电路。放大器还包括用于打开第一开关电路并闭合第二开关电路以输出输出信号的装置，并且用于闭合第一开关电路并打开第二开关电路以停止输出信号。输入和输出晶体管可以使用vipolar或MOSFET技术制造，因为小幅度的电流流过开关电路，开关电路可以由尺寸小且具有小寄生电容的元件形成。因此，放大器能够以高速度运行但具有低功率需求。此外，放大器可以在单个IC芯片上小型化或形成。

4. 发明授权

US06979810B2 Optical modules and methods of making the optical modules 失效
标题翻译：光模块及其制造方法
公开(公告)号：US06979810B2
公开(公告)日：2005-12-27
申请号：US09930806
申请日：2001-08-15
申请人： Norio Chujo , Keiichi Yamamoto , Akio Osaki , Katsunori Hirano , Takayuki Nakao , Tomoaki Shimotsu , Atsushi Hasegawa , Tetsuya Aoki , Takeshi Yamashita
发明人： Norio Chujo , Keiichi Yamamoto , Akio Osaki , Katsunori Hirano , Takayuki Nakao , Tomoaki Shimotsu , Atsushi Hasegawa , Tetsuya Aoki , Takeshi Yamashita
IPC分类号： H01L31/10 , H01L31/107 , H03L7/085 , H03L7/091 , H04B10/07 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04L7/033 , H01J40/14 , H03D3/24 , H04B10/06
CPC分类号： H04L7/033 , H03L7/091
摘要： A sample & hold type phase detector is used in a CDR IC and, in jitter transfer bandwidth adjustment, VCO output waveforms 90° out of phase with each other can be inputted to the phase detector, whereby a jitter transfer bandwidth can be calculated by only the measurement of frequency and of a DC voltage and it is possible to make a jitter transfer bandwidth adjustment in DC test for IC.
摘要翻译：在CDR IC中使用采样保持型相位检测器，并且在抖动传输带宽调整中，彼此相位差90°的VCO输出波形可以被输入到相位检测器，由此抖动传输带宽可以仅通过频率和直流电压的测量，可以在IC的直流测试中进行抖动传输带宽调整。

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