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    Digital teleconverter
    2.
    发明授权
    Digital teleconverter 失效
    数字电视转换器

    公开(公告)号：US5041905A

    公开(公告)日：1991-08-20

    申请号：US546931

    申请日：1990-07-02

    申请人： Noriaki Hatanaka ,  Katsuhiko Manabe ,  Takashi Sasaki

    发明人： Noriaki Hatanaka ,  Katsuhiko Manabe ,  Takashi Sasaki

    IPC分类号： H04N11/04 ,  H04N9/64

    CPC分类号： H04N9/641

    摘要： A digital teleconverter includes a component signal generation circuit, an encoder for obtaining a composite signal from the component signal, an image processing unit and a selector for selecting an image processing mode. The component signal generation circuit generates component signals comprising a luminance signal and color difference signals in response to an object image transmitted from an image pickup element. The encoder converts the component signals transmitted from the component signal generation circuit to a composite signal. The image processing unit performs a digital image processing on the basis of either the component signals or the composite signal. The selector selects either a video signal processed by and transmitted from the image processing unit or an original video signal of the object image.

    摘要翻译： 数字望远转换器包括分量信号发生电路，用于从分量信号获得复合信号的编码器，图像处理单元和用于选择图像处理模式的选择器。 分量信号生成电路响应于从图像拾取元件发送的对象图像，生成包括亮度信号和色差信号的分量信号。 编码器将从分量信号发生电路发送的分量信号转换为复合信号。 图像处理单元基于分量信号或复合信号进行数字图像处理。 选择器选择由图像处理单元处理并从图像处理单元发送的视频信号或对象图像的原始视频信号。

    Signal amplifier and magnetic disk storage apparatus using the same
    3.
    发明授权
    Signal amplifier and magnetic disk storage apparatus using the same 失效
    信号放大器和使用其的磁盘存储装置

    公开(公告)号：US06218903B1

    公开(公告)日：2001-04-17

    申请号：US09514353

    申请日：2000-02-28

    申请人： Takashi Hashimoto ,  Yuji Nagaya ,  Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tatsuo Mochizuki ,  Katsuya Sonoyama

    发明人： Takashi Hashimoto ,  Yuji Nagaya ,  Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tatsuo Mochizuki ,  Katsuya Sonoyama

    IPC分类号： H03F316

    CPC分类号： H03F3/45269 ,  G11B5/012 ,  G11B5/11 ,  G11B5/40 ,  G11B5/4886 ,  G11B19/04 ,  G11B23/0007 ,  G11B2005/0016 ,  G11B2005/0018 ,  H03F3/45183 ,  H03F2203/45298 ,  H03F2203/45612 ,  Y10T29/4903

    摘要： A very-small-signal amplifier is capable of amplifying very small signals with high sensitivity up to high frequencies while simplifying the circuit, and a magnetic disk storage apparatus realizes a reading operation over a wide band up to high frequencies with high sensitivity. The signal amplifier is a modified differential circuit including a first transistor of a first conductivity type and a second transistor of a second conductivity type each having a control terminal, a terminal of the input side and a terminal of the output side. The terminals on the input side are connected in common, and a current corresponding to the voltage difference across the control terminals is allowed to flow. A very small voltage signal generated by an input signal source is applied to the control terminal of said first transistor. A bias voltage is applied to the control terminal of the second transistor. Therefore, an amplified signal corresponding to the very small voltage signal generated by the input signal source is generated at the terminal on the output side of the second transistor.

    摘要翻译： 一个非常小的信号放大器能够在高频率的情况下以高灵敏度放大非常小的信号，同时简化电路，而磁盘存储设备实现了高频高频，高灵敏度的宽带读取操作。 信号放大器是包括具有第一导电类型的第一晶体管和第二导电类型的第二晶体管的修改的差分电路，每个具有控制端子，输入侧的端子和输出侧的端子。 输入侧的端子共同连接，并且允许对应于控制端子两端的电压差的电流流动。 由输入信号源产生的非常小的电压信号被施加到所述第一晶体管的控制端。 偏压被施加到第二晶体管的控制端。 因此，在第二晶体管的输出侧的端子产生与输入信号源产生的非常小的电压信号对应的放大信号。

    Information storage device having transducers operating in a pulse mode in synchronism with a timing clock
    6.
    发明授权
    Information storage device having transducers operating in a pulse mode in synchronism with a timing clock 失效
    具有与定时时钟同步的以脉冲模式工作的换能器的信息存储装置

    公开(公告)号：US06473255B2

    公开(公告)日：2002-10-29

    申请号：US09025235

    申请日：1998-02-18

    申请人： Noriaki Hatanaka ,  Tadahiko Kameyama ,  Takeshi Maeda

    发明人： Noriaki Hatanaka ,  Tadahiko Kameyama ,  Takeshi Maeda

    IPC分类号： G11B509

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B5/40 ,  G11B7/126 ,  G11B11/10515 ,  G11B20/10009 ,  G11B2005/0018 ,  G11B2005/3996

    摘要： Sense current is applied in pulses, synchronized with the timing clock generated by a clock generator 5, to transducer 2 in the information storage device, reducing the time-averaged value of the sense current. The recorded information on the magnetic disk medium 1 is reproduced by the MR head as reproducing signal pulses in synchronism with the above timing clock. The amplitude of the reproducing signal pulses are proportional to the magnetic field of the magnetic disk medium 1. The reproducing signal pulses are sample-held by a sample-hold circuit 6, and after being digitized by an A/D converter 7, recorded data are retrieved through a demodulator circuit 8 of a partial-response system.

    摘要翻译： 感应电流以与时钟发生器5产生的定时时钟同步的脉冲施加到信息存储装置中的换能器2，从而减小感测电流的时间平均值。 磁盘介质1上记录的信息由MR磁头作为与上述定时时钟同步的再现信号脉冲再现。 再现信号脉冲的振幅与磁盘介质1的磁场成比例。再现信号脉冲由采样保持电路6采样保持，并且在被A / D转换器7数字化之后，记录数据 通过部分响应系统的解调器电路8检索。

    Signal amplifier apparatus and magnetic disk storage apparatus using the same
    7.
    发明授权
    Signal amplifier apparatus and magnetic disk storage apparatus using the same 失效
    信号放大器装置和使用其的磁盘存储装置

    公开(公告)号：US06163218A

    公开(公告)日：2000-12-19

    申请号：US451914

    申请日：1999-12-01

    申请人： Takashi Hashimoto ,  Yuji Nagaya ,  Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tatsuo Mochizuki ,  Katsuya Sonoyama

    发明人： Takashi Hashimoto ,  Yuji Nagaya ,  Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tatsuo Mochizuki ,  Katsuya Sonoyama

    IPC分类号： G11B5/09 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/11 ,  G11B5/40 ,  G11B5/48 ,  G11B19/04 ,  G11B23/00 ,  H03F3/45

    CPC分类号： H03F3/45269 ,  G11B5/012 ,  G11B5/11 ,  G11B5/40 ,  G11B5/4886 ,  G11B19/04 ,  G11B23/0007 ,  G11B2005/0016 ,  G11B2005/0018 ,  H03F3/45183 ,  H03F2203/45298 ,  H03F2203/45612 ,  Y10T29/4903

    摘要： A very-small-signal amplifier is capable of amplifying very small signals with high sensitivity up to high frequencies while simplifying the circuit, and a magnetic disk storage apparatus realizes a reading operation over a wide band up to high frequencies with high sensitivity. The signal amplifier is a modified differential circuit including a first transistor of a first conductivity type and a second transistor of a second conductivity type each having a control terminal, a terminal of the input side and a terminal of the output side. The terminals on the input side are connected in common, and a current corresponding to the voltage difference across the control terminals is allowed to flow. A very small voltage signal generated by an input signal source is applied to the control terminal of said first transistor. A bias voltage is applied to the control terminal of the second transistor. Therefore, an amplified signal corresponding to the very small voltage signal generated by the input signal source is generated at the terminal on the output side of the second transistor.

    摘要翻译： 一个非常小的信号放大器能够在高频率的情况下以高灵敏度放大非常小的信号，同时简化电路，而磁盘存储设备实现了高频高频，高灵敏度的宽带读取操作。 信号放大器是包括具有第一导电类型的第一晶体管和第二导电类型的第二晶体管的修改的差分电路，每个具有控制端子，输入侧的端子和输出侧的端子。 输入侧的端子共同连接，并且允许对应于控制端子两端的电压差的电流流动。 由输入信号源产生的非常小的电压信号被施加到所述第一晶体管的控制端。 偏压被施加到第二晶体管的控制端。 因此，在第二晶体管的输出侧的端子产生与输入信号源产生的非常小的电压信号对应的放大信号。

    Magnetic head circuit having a write current changeover circuit with a clamp voltage depending on write current for high-speed data transfer
    9.
    发明授权
    Magnetic head circuit having a write current changeover circuit with a clamp voltage depending on write current for high-speed data transfer 失效
    磁头电路具有写入电流切换电路，其具有取决于用于高速数据传输的写入电流的钳位电压

    公开(公告)号：US5392172A

    公开(公告)日：1995-02-21

    申请号：US010146

    申请日：1993-01-28

    申请人： Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tomoaki Hirai ,  Yuji Nagaya ,  Tsuyoshi Hirose ,  Tadao Kaji

    发明人： Masaki Yoshinaga ,  Noriaki Hatanaka ,  Tomoaki Hirai ,  Yuji Nagaya ,  Tsuyoshi Hirose ,  Tadao Kaji

    IPC分类号： G11B5/09 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/035 ,  G11B5/40 ,  G11B5/455 ,  G11B19/04

    CPC分类号： G11B5/012 ,  G11B5/02 ,  G11B5/022 ,  G11B5/035 ,  G11B5/40 ,  G11B5/455 ,  G11B19/04 ,  G11B2005/0013

    摘要： A magnetic head circuit for a plurality of magnetic heads includes two emitter follower transistors for receiving magnetic head writing data, two differential transistors connected to the two emitter follower transistors for performing differential operation control thereover, and two resistors connected to collectors of the two differential transistors for supplying a base current to the two emitter follower transistors, and wherein the emitter follower transistors are connected in series with each other to perform differential switch operations over a magnetic head writing current. A magnetic head fly-back voltage has a clamp voltage which varies according to a writing current flowing through a pair of signal terminals. A pair of differential transistors, whose bases are connected to the pair of signal terminals and whose emitters are connected directly to each other, are operated according to a voltage appearing between the pair of signal terminals. Connected to the collectors of the pair of differential transistors are amplification transistors respectively. Connected to outputs of the amplification transistors are post-amplifiers. Such a connection configuration provides a small mirror capacitance as viewed from the bases of the amplification transistors. A high writing and reading accessing speed to the magnetic heads can be realized.

    摘要翻译： 用于多个磁头的磁头电路包括用于接收磁头写入数据的两个射极跟随器晶体管，连接到两个射极跟随器晶体管的两个差分晶体管，用于执行差分操作控制，以及连接到两个差分晶体管的集电极的两个电阻器 用于向两个射极跟随器晶体管提供基极电流，并且其中所述射极跟随器晶体管彼此串联连接以在磁头写入电流上进行差分开关操作。 磁头反向电压具有根据流过一对信号端子的写入电流而变化的钳位电压。 一对差分晶体管的基极连接到该对信号端并且其发射极彼此直接连接的差分晶体管根据出现在一对信号端子之间的电压而被操作。 连接到该对差分晶体管的集电极分别是放大晶体管。 连接到放大晶体管的输出端是后置放大器。 这种连接配置提供从放大晶体管的基极观察的小镜电容。 可以实现对磁头的高写入和读取访问速度。

    Electronic zoom apparatus
    10.
    发明授权
    Electronic zoom apparatus 失效
    电子变焦装置

    公开(公告)号：US5083208A

    公开(公告)日：1992-01-21

    申请号：US452602

    申请日：1989-12-19

    申请人： Noriaki Hatanaka

    发明人： Noriaki Hatanaka

    IPC分类号： G06T3/40 ,  H04N5/14 ,  H04N5/262

    CPC分类号： G06T3/4007 ,  H04N5/144 ,  H04N5/2628

    摘要： An electronic zoom apparatus is used in an image pickup device constructing one frame while a raster scanning is performed with respect to image data of first and second fields. The apparatus comprises a memory for storing first image data of the first field and second image data of the second field; a frame making circuit for transmitting a control signal to the memory in accordance with a control signal transmitted from a control section such that the stored first and second image data are synthesized as one frame and are read at random; and an interpolating circuit for performing an interpolation processing with respect to the first and second image data transmitted from the memory by the control signal transmitted from the frame making circuit. Further, the apparatus may comprise an interpolating circuit control section for detecting the difference between adjacent first and second image data transmitted from the memory and controlling the interpolating circuit to be turned on and off by the detecting result. The interpolating circuit comprises a memory device for supplying the image data to be interpolated as an address signal and reading the image data stored to an address indicated by this address signal and interpolation-processed in advance by the image data. The data read out of the memory device are set to interpolating data.

    摘要翻译： 在对第一和第二场的图像数据执行光栅扫描的同时，在构成一帧的图像拾取装置中使用电子变焦装置。 该装置包括用于存储第一场的第一图像数据和第二场的第二图像数据的存储器; 帧控制电路，用于根据从控制部分发送的控制信号将控制信号发送到存储器，使得存储的第一和第二图像数据被合成为一帧并随机读取; 以及内插电路，用于通过从帧提供电路发送的控制信号，对从存储器发送的第一和第二图像数据进行插值处理。 此外，该装置可以包括内插电路控制部分，用于检测从存储器发送的相邻的第一和第二图像数据之间的差异，并通过检测结果控制内插电路被接通和断开。 内插电路包括用于提供要内插的图像数据作为地址信号的存储器件，并且读取存储到由该地址信号指示的地址并由该图像数据预先进行插值处理的图像数据。 从存储器件读出的数据被设置为内插数据。