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1. 发明专利

JP2009135171A Light-emitting device 审中-公开
标题翻译：发光装置
公开(公告)号：JP2009135171A
公开(公告)日：2009-06-18
申请号：JP2007308414
申请日：2007-11-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKADA KENGO , TAKAAI JUN , TOSAKA NORIO
IPC分类号： H01S5/0683
摘要： PROBLEM TO BE SOLVED: To provide a light-emitting device capable of automatically handling characteristic variation of a photodiode inside a circuit without requiring adjustments from outside.
SOLUTION: A current source 1 supplies a drive current Id to a laser diode D1. A photodiode D2 receives light 2 emitted from the laser diode D1, and outputs a photodetection current Iop proportional to the light power thereof. A current converting circuit 3 outputs a first current I1 and a second current I2 proportional to the photodetection current Iop. A variable resistance 4 outputs a first voltage V1 represented as the product of its resistance value and the first current I1. A current source control circuit 5 controls the current source 1 so that the absolute value of the difference voltage between the first voltage V1 and a predetermined control voltage Vcon decreases. A variable resistance control circuit 6 controls the variable resistance 4 so that the resistance value of the variable resistance 4 is larger and larger as the ratio of the second current I2 to the drive current Id is smaller and smaller.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够自动处理电路内的光电二极管的特性变化而不需要从外部调整的发光装置。解决方案：电流源1向激光二极管D1提供驱动电流Id。光电二极管D2接收从激光二极管D1发射的光2，并输出与光功率成比例的光检测电流Iop。电流转换电路3输出与光电检测电流Iop成比例的第一电流I1和第二电流I2。可变电阻4输出以其电阻值和第一电流I1的乘积表示的第一电压V1。电流源控制电路5控制电流源1，使得第一电压V1和预定控制电压Vcon之间的差分电压的绝对值降低。可变电阻控制电路6控制可变电阻4，使得可变电阻4的电阻值随着第二电流I2与驱动电流Id的比值越来越小而越来越大。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2006086725A Logic circuit 有权
标题翻译：逻辑电路
公开(公告)号：JP2006086725A
公开(公告)日：2006-03-30
申请号：JP2004268526
申请日：2004-09-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHIMADA MASAAKI , TOSAKA NORIO
IPC分类号： H03K19/017 , H03K19/0952
摘要： PROBLEM TO BE SOLVED: To provide a logic circuit comprising multi-stage connection of a plurality of current mode logic circuits each configured with field effect transistors that improves the transconductance g
m and the cut-off frequency f
T of the transistors and attains a high speed/broadband configuration.
SOLUTION: The logic circuit comprises multi-stage connection of a plurality of the current mode logic circuits, and each current mode logic circuit includes: two resistors whose one terminal is connected to a high level power supply; two field effect transistors whose drains are connected to the other terminal of the two resistors and two output terminals respectively, whose gates are respectively connected to two input terminals, and whose sources are connected in common; and a constant current source whose one terminal is connected to the sources of the two field effect transistors and whose other terminal is connected to a low level power supply, and a level applied to one terminal of the two resistors is higher toward the post-stage current mode logic circuit.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种逻辑电路，其包括多个电流模式逻辑电路的多级连接，每个电流模式逻辑电路均配置有提高跨导g m 和截止的场效应晶体管频率f T ，并达到高速/宽带配置。解决方案：逻辑电路包括多个电流模式逻辑电路的多级连接，并且每个电流模式逻辑电路包括：两个电阻器，其一个端子连接到高电平电源; 两个场效应晶体管的漏极分别连接到两个电阻器的另一个端子和两个输出端子，其栅极分别连接到两个输入端子，并且源极共同连接; 以及一个恒流源，其一个端子连接到两个场效应晶体管的源极，并且其另一个端子连接到低电平电源，并且施加到两个电阻器的一个端子的电平朝向后级电流模式逻辑电路。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006086682A Amplifier circuit 有权
标题翻译：放大器电路
公开(公告)号：JP2006086682A
公开(公告)日：2006-03-30
申请号：JP2004267838
申请日：2004-09-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKAAI JUN , YOSHIMURA TSUTOMU , TOSAKA NORIO
IPC分类号： H03G11/00 , H03F3/45 , H03G11/04
CPC分类号： H03F3/45085 , H03F2203/45631 , H03F2203/45652 , H03F2203/45702
摘要： PROBLEM TO BE SOLVED: To provide an amplifier circuit the peaking strength of an active feedback circuit of which can externally be adjusted. SOLUTION: The amplifier circuit includes: a first differential amplifier circuit; a second differential amplifier circuit for amplifying the output signal of the first differential amplifier circuit; and the active feedback circuit for feeding back the output signal of the second differential amplifier circuit to apply waveform shaping to the output signal of the first differential amplifier circuit, and the active feedback circuit includes first and second transistors whose collectors or drains are connected to two output modes of the first differential amplifier circuit, respectively, whose bases or gates are connected to two output nodes of the second differential amplifier circuit, respectively, and whose emitters or sources are connected in common, and a first current source the one terminal of which is connected to the emitters or the sources of the first and second transistors and the other terminal of which is connected to a low level power supply, and the current value of which can externally be adjusted. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供放大器电路，其有源反馈电路的峰值强度可以从外部调整。解决方案：放大器电路包括：第一差分放大器电路; 第二差分放大器电路，用于放大第一差分放大器电路的输出信号; 以及用于反馈第二差分放大器电路的输出信号的有源反馈电路以对第一差分放大器电路的输出信号施加波形整形，并且有源反馈电路包括第一和第二晶体管，其集电极或漏极连接到两个第一差分放大器电路的基极或栅极分别连接到第二差分放大器电路的两个输出节点并且其发射器或源极共同连接的第一差分放大器电路的输出模式，以及其一个端子的第一电流源连接到第一和第二晶体管的发射极或源极，另一个端子连接到低电平电源，其电流值可以从外部调整。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2009135774A Differential amplifier circuit 审中-公开
标题翻译：差分放大器电路
公开(公告)号：JP2009135774A
公开(公告)日：2009-06-18
申请号：JP2007310659
申请日：2007-11-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKAAI JUN , TOSAKA NORIO
IPC分类号： H03F3/45 , H03K19/0175 , H03K19/0952
CPC分类号： H03F3/45085 , H03F1/42 , H03F2200/36 , H03F2203/45638 , H03F2203/45702
摘要： PROBLEM TO BE SOLVED: To provide a differential amplifier circuit capable of easily adjusting inductance from outside.
SOLUTION: This differential amplifier circuit has a first and a second transistors structuring a differential pair, a first inductor connected between the output terminal of the first transistor and a power source, a second inductor connected between the output terminal of the second transistor and the power source, a first transmission gate connected in series with the first inductor, and a second transmission gate connected in series with the second inductor.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够容易地从外部调整电感的差分放大器电路。解决方案：该差分放大器电路具有构成差分对的第一和第二晶体管，连接在第一晶体管的输出端和电源之间的第一电感器，连接在第二晶体管的输出端之间的第二电感器电源，与第一电感器串联连接的第一传输栅极和与第二电感器串联连接的第二传输栅极。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2007305762A Drive circuit of laser diode 审中-公开
标题翻译：激光二极管驱动电路
公开(公告)号：JP2007305762A
公开(公告)日：2007-11-22
申请号：JP2006132234
申请日：2006-05-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKAAI JUN , TOSAKA NORIO
IPC分类号： H01S5/042
CPC分类号： H01S5/042 , H01S5/0427
摘要： PROBLEM TO BE SOLVED: To obtain a drive circuit of a laser diode capable of surely eliminating noise and easy in circuit design.
SOLUTION: The drive circuit of a laser diode comprises a first transistor with its collector connected with an anode of the laser diode, a second transistor with its collector connected with a cathode of the laser diode, a constant current circuit connected between emitters of the first and second transistors and a ground point, a first bypass filter connected between a base and a collector of the first transistor, and a second high pass filter connected between a base and a collector of the second transistor.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：获得能够可靠地消除噪声并且容易进行电路设计的激光二极管的驱动电路。解决方案：激光二极管的驱动电路包括第一晶体管，其集电极与激光二极管的阳极连接，第二晶体管的集电极与激光二极管的阴极连接，恒流电路连接在发射极之间连接在第一晶体管的基极和集电极之间的第一旁路滤波器和连接在第二晶体管的基极和集电极之间的第二高通滤波器。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JPH1032474A VARIABLE DELAY CIRCUIT AND CALIBRATION METHOD FOR VARIABLE DELAY CIRCUIT 失效
公开(公告)号：JPH1032474A
公开(公告)日：1998-02-03
申请号：JP18925696
申请日：1996-07-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIMADA MASAAKI , TOSAKA NORIO , OTA AKIRA , HIRAMA TETSUYA , OMURA TAKASHI
IPC分类号： G04F10/04 , H03K5/00 , H03K5/14
摘要： PROBLEM TO BE SOLVED: To provide the variable delay circuit of an excellent resolution and to provide a calibration method of the variable delay circuit capable of providing the variable delay circuit of the excellent resolution at an improved yield. SOLUTION: By providing a selector signal conversion means 13 in this variable delay circuit, selector signals SEL inputted so as to select plural paths 0-3 are rearranged in an order to select the plural paths 0-3 in the ascending/ descending order of the length of the delay time corresponding to the ascending/ descending order of the selector signals SEL. Then, they are outputted to the selector circuit 3 of a variable delay circuit part 11 as corrected selector signals SEL/A.

7. 发明专利

JPH04212447A COMPOUND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE AND ITS MANUFACTURE 失效
公开(公告)号：JPH04212447A
公开(公告)日：1992-08-04
申请号：JP1548091
申请日：1991-02-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： TOSAKA NORIO , SHIMADA MASAAKI
IPC分类号： H01L27/04 , H01L21/822 , H01L21/8234 , H01L27/06 , H01L29/78
摘要： PURPOSE:To increase the capacitance per unit area of a capacitor, and obstruct the gate current of a compound semiconductor field effect transistor. CONSTITUTION:An oxide film 7 formed by directly oxidizing a compound semiconductor substrate 1 is used as the dielectric film of a capacitor. Thereby a very thin dielectric film can be formed, as compared with the one formed by an ordinary CVD method, so that a capacitor having large capacitance can be realized. By using a GaAs oxide film formed by projecting a light in an oxygen atmosphere as a gate insulating film, the gate current is obstructed. Hence the surface level is lowered, and characteristics control of a transistor is enabled.

8. 发明专利

JPH0373147B2 失效
公开(公告)号：JPH0373147B2
公开(公告)日：1991-11-20
申请号：JP23074085
申请日：1985-10-15
申请人： MITSUBISHI ELECTRIC CORP
发明人： SATO HISAYASU , NISHIMURA TAKASHI , TOSAKA NORIO , KATO SHUICHI
IPC分类号： H01L27/04 , H01L21/02 , H01L21/82 , H01L21/822 , H01L27/118

9. 发明专利

JPH03173458A SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE 失效
公开(公告)号：JPH03173458A
公开(公告)日：1991-07-26
申请号：JP31376289
申请日：1989-12-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： HAYAKAWA YASUSHI , TOSAKA NORIO
IPC分类号： H01L21/82
摘要： PURPOSE:To set wiring width large, reduce wiring resistance, and decrease the time constant or the voltage drop of wirings, by a method wherein, when a plurality of IC's and a plurality of wirings for connecting the IC's are formed on a single semiconductor substrate, at least one of wirings is not connected with each of the IC's. CONSTITUTION:Whether each of the IC's 2, 3, 4,... is acceptable is judged by wafer test. For example, when the IC's 2, 3 are judged to be acceptable, and the IC's 4 is judged to be not acceptable, signal wiring parts 5a-5c connecting the IC 4 and signal wirings 5 are cut at part positions (a), (b), (c) by laser trimming. The IC's 2, 3 which have been judged to be acceptable and a power supply wiring 6 are subjected to bonding by using wires 7. The IC 4 which has been judged to be not acceptable is put in the state isolated from the wirings 5, 6. Thereby the wiring 6 is not connected with imperfect IC's, so that the width of the wiring 6 can be set wider by that amount.

10. 发明专利

JPH0377424A LOGIC CIRCUIT 失效
公开(公告)号：JPH0377424A
公开(公告)日：1991-04-03
申请号：JP21363789
申请日：1989-08-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： TOSAKA NORIO
IPC分类号： H03K19/086
摘要： PURPOSE:To prevent the decrease of an output high level (VOH) by connecting a resistor in parallel with a transistor(TR) acting like a load element. CONSTITUTION:Resistors 3, 4 are connected respectively in parallel with TRs 1, 2. For example, when a TR 5 is turned off and no current flows to the TR 1, the current flows to the resistor 3 connected in parallel with the TR 1 even when a leakage current exists, and no potential difference appears across the resistor 3. Thus, the resistors 3, 4 connecting in parallel with the TRs 1, 2 operating as load elements act like a bypass for a minute current, and no level difference is caused across the load element, and the VOH is not reduced.

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