Transistor output circuit
    2.
    发明公开
    Transistor output circuit 失效
    Transistorausgangsschaltung

    公开(公告)号:EP0785628A3

    公开(公告)日:1998-06-24

    申请号:EP97100598

    申请日:1997-01-16

    Applicant: CANON KK

    CPC classification number: H03K19/00361 H03K17/164

    Abstract: A transistor output circuit comprises a first insulated gate transistor (M11) having a control electrode connected to an input terminal (3), one main electrode connected to a first diode (D1), and the other main electrode connected to a reference voltage source (1), and a second insulated gate transistor (M12) having a control electrode connected to the input terminal (3), one main electrode connected to an output terminal (4), and the other main electrode connected to the reference voltage source (1). A ratio (W
    1 /L
    1 ) of a gate width (W
    1 ) to a gate length (L
    1 ) of the first insulated gate transistor is larger than a ratio (W
    2 /L
    2 ) of a gate width (W
    2 ) to a gate length (L
    2 ) of the second insulated gate transistor.

    Abstract translation: 晶体管输出电路包括第一绝缘栅极晶体管,其具有连接到输入端子的控制电极,连接到第一二极管的一个主电极和连接到参考电压源的另一个主电极,以及具有控制的第二绝缘栅极晶体管 电极连接到输入端子,一个主电极连接到输出端子,另一个主电极连接到参考电压源。 第一绝缘栅晶体管的栅极宽度(W1)与栅极长度(L1)的比(W1 / L1)大于栅极宽度(W2)与栅极长度(L2)的比(W2 / L2) )的第二绝缘栅极晶体管。

    3.
    发明专利
    未知

    公开(公告)号:DE69924771T2

    公开(公告)日:2005-10-06

    申请号:DE69924771

    申请日:1999-01-27

    Applicant: CANON KK

    Abstract: This invention has as its object to provide an image sensor chip and an image sensor using the image sensor chip capable of reducing random noise in the image sensor chip to obtain a high-quality image. An image sensor chip having a plurality of light-receiving element includes a noise reduction circuit for reducing random noise contained in an output signal from the light-receiving element in the ON state and outputting the random noise contained in the output signal from the light-receiving element without any processing in the OFF state, a first control circuit for controlling the ON/OFF state of the noise reduction circuit, a clamp circuit for clamping an output signal output through the noise reduction circuit to a reference potential, and a second control circuit for controlling an ON/OFF state of the clamp circuit. An image sensor chip and an image sensor formed by arraying a plurality of image sensor chips are also provided.

    4.
    发明专利
    未知

    公开(公告)号:DE69924771D1

    公开(公告)日:2005-05-25

    申请号:DE69924771

    申请日:1999-01-27

    Applicant: CANON KK

    Abstract: This invention has as its object to provide an image sensor chip and an image sensor using the image sensor chip capable of reducing random noise in the image sensor chip to obtain a high-quality image. An image sensor chip having a plurality of light-receiving element includes a noise reduction circuit for reducing random noise contained in an output signal from the light-receiving element in the ON state and outputting the random noise contained in the output signal from the light-receiving element without any processing in the OFF state, a first control circuit for controlling the ON/OFF state of the noise reduction circuit, a clamp circuit for clamping an output signal output through the noise reduction circuit to a reference potential, and a second control circuit for controlling an ON/OFF state of the clamp circuit. An image sensor chip and an image sensor formed by arraying a plurality of image sensor chips are also provided.

    5.
    发明专利
    未知

    公开(公告)号:DE69311755D1

    公开(公告)日:1997-07-31

    申请号:DE69311755

    申请日:1993-02-26

    Applicant: CANON KK

    Abstract: A drive circuit for supplying a constant drive current to the anode terminal of a semiconductor light emitting device (7), includes a current supply source (10) connected to the anode terminal for supplying a bias current to the semiconductor light emitting device. Since the drive circuit is formed so as to supply the bias current to the anode terminal of the semiconductor light emitting device, a charge current for charging a conjunction capacitance can be reduced independently on the time period of turning off the semiconductor light emitting device. As a result, a spike noise can be removed in the laser current waveform at its rise-up part, and a reduction of its rise-up speed can be restricted, both of which are due to a dependent upon the time period of turning off the semiconductor device.

    Electronic component and electronic apparatus

    公开(公告)号:GB2512479A

    公开(公告)日:2014-10-01

    申请号:GB201402986

    申请日:2014-02-20

    Applicant: CANON KK

    Abstract: A package structure 100 for an electronic component 10 such as an image pickup or display device includes a ferromagnetic body 40 which may be a frame surrounding the device or two rods either side of the device (Fig. 11A), and conductor plates or films 811, 813 below the device and embedded in a base body 20, both of which reduce magnetic flux density through the device, hence the noise caused by magnetic fields. The conductor layer may comprise a paramagnetic or diamagnetic body having lower magnetic permeability than the ferromagnetic body. It may overlap part of the ferromagnetic body as well as the device, in which case a counter magnetic field resulting from eddy currents in the conductor caused by the undesirable magnetic field will pass orthogonally through the device and adjacent internal connectors and bond wires 3, 4, 5, in the z direction, and not cause undesirable additive magnetic field components in the x/y plane. A lid 30 placed over the device may be transparent. Outer terminals 7 may be positioned on the bottom of the base body, and connected to inner terminals 5.

    7.
    发明专利
    未知

    公开(公告)号:DE69333849D1

    公开(公告)日:2005-09-08

    申请号:DE69333849

    申请日:1993-12-23

    Applicant: CANON KK

    Abstract: A circuit device according to the present invention comprises a plurality of transistor pairs, the number of which corresponds to a quantizing bit number, each of the plurality of transistor pairs being a pair of transistors having respective control electrodes connected to each other and respective first primary electrodes connected to each other, and a connecting line arranged to connect in series a second primary electrode of one transistor of one transistor pair among the plurality of transistor pairs to first primary electrodes of another transistor pair among the plurality of transistor pairs so as to constitute a binary-weighted current source. With the above-described arrangement, it is possible to reduce an area to be occupied by the circuit device and it is also possible to miniaturize the circuit device. Further, it is possible to reduce the cost of the circuit device.

    8.
    发明专利
    未知

    公开(公告)号:DE69332958D1

    公开(公告)日:2003-06-12

    申请号:DE69332958

    申请日:1993-02-26

    Applicant: CANON KK

    Abstract: A drive circuit for supplying a constant drive current to the anode terminal of a semiconductor light emitting device (7), includes a current supply source (10) connected to the anode terminal for supplying a bias current to the semiconductor light emitting device. Since the drive circuit is formed so as to supply the bias current to the anode terminal of the semiconductor light emitting device, a charge current for charging a conjunction capacitance can be reduced independently on the time period of turning off the semiconductor light emitting device. As a result, a spike noise can be removed in the laser current waveform at its rise-up part, and a reduction of its rise-up speed can be restricted, both of which are due to a dependent upon the time period of turning off the semiconductor device.

    Electron generating device, image display apparatus, driving circuit therefor, and driving method

    公开(公告)号:AU2135599A

    公开(公告)日:1999-05-27

    申请号:AU2135599

    申请日:1999-03-23

    Applicant: CANON KK

    Abstract: In order to prevent voltage drops across the wiring resistances in a multi-electron source having a plurality of electron emitters wired in the form of a matrix of a plurality of data wiring layer electrodes and a plurality of scanning wiring layer electrodes, a constant current signal is output to each data wiring layer electrode. At this time, each non-selected data wiring layer electrode tends to be set at a high impedance and vary in potential, resulting in an abnormal turn-on operation or an electron orbit shift. A driving circuit for solving this problem is provided. A switch for switching a constant current output unit for outputting a constant current regardless of the impedance of a signal output destination, and a constant voltage output unit for outputting a constant voltage regardless of the impedance of a signal output destination is connected to each data wiring layer electrode. For example, a constant-current circuit (17) as a current output unit always outputs the same current (I1 to In) to a switch (30). A pulse width signal (PW1 to PWn) from a pulse-width modulation circuit (7) serves to switch the mode of outputting a current (I1 to In) to a data wiring layer electrode (Dy1 to Dyn,) and the mode of fixing a data wiring layer electrode to voltage GND.

    Electron-beam generating apparatus, image display apparatus having the same, and method of driving thereof

    公开(公告)号:AU1661497A

    公开(公告)日:1997-10-02

    申请号:AU1661497

    申请日:1997-03-27

    Applicant: CANON KK

    Abstract: A driving circuit and a driving method capable of uniformly outputting electron beam at high speed from a multi-electron-beam source (50) having a plurality of cold cathode devices wired in a matrix, to provide a display apparatus having a characteristic of less unevenness in display luminance, a superior linearity in grayscale, and fast response. The electron-beam generating apparatus includes a multi-electron-beam source (50) where a plurality of cold cathode devices are wired with row wiring and column wiring arranged in a matrix form, a scanning circuit (2) connected to the row wiring, and modulation circuits (10, 20, 30) connected to the column wiring. The modulation circuits (10, 20, 30) includes: a controlled current source (10) for supplying a driving current pulse to the cold cathode devices, a voltage source (20) for quickly charging parasitic capacity of the multi-electron-beam source (50), and a charging-voltage apply circuit (30) for electrically connecting the voltage source and the column wiring in synchronization with a rise of the driving current pulse.

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