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14 条记录 (耗时 0.04 秒)

    Recording medium and reproducing apparatus for quantized data
    1.
    发明授权
    Recording medium and reproducing apparatus for quantized data 有权
    用于量化数据的记录介质和再现装置

    公开(公告)号：US07254456B2

    公开(公告)日：2007-08-07

    申请号：US10895289

    申请日：2004-07-21

    申请人： Hirohisa Nishiwaki ,  Hideki Mimura ,  Shigeru Todokoro

    发明人： Hirohisa Nishiwaki ,  Hideki Mimura ,  Shigeru Todokoro

    IPC分类号： G06F17/00

    CPC分类号： H04N9/8042 ,  G11B20/10527 ,  G11B20/1217 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/34 ,  G11B2020/10592 ,  G11B2220/2554 ,  G11B2220/2562 ,  H04N5/85 ,  H04N9/8087 ,  H04N9/8227

    摘要： A data arranging method for linear PCM data, which allows both low cost and high cost machines to easily perform a reproduction process and can cope with multiple channels. Data having a structure in which each sample data of 20 bits or 24 bits of individual channels is separated to a main word consisting of 16 bits and an extra word consisting of 4 or 8 bits, a collection of 2n-th main words of the individual channels is arranged, a collection of (2n+1)-th main words of the individual channels is then arranged, a collection of 2n-th extra words of the individual channels is then arranged, and a collection of (2n+1)-th extra words of the individual channels is then arranged, is recorded on a recording medium or transferred.

    摘要翻译： 一种用于线性PCM数据的数据排列方法，其允许低成本和高成本机器轻松地执行再现处理并且可以处理多个通道。 具有这样的结构的数据，其中将每个20位或24位各个通道的每个采样数据分离为由16位组成的主字和由4或8位组成的额外字，每个个体的第2n个主要字的集合 排列通道，然后排列各通道的（2n + 1）个主要集合，然后排列各个通道的第2n个额外字的集合，并且（2n + 1） - 然后排列各个通道的额外字，记录在记录介质上或传送。

    Tracking servo system for optical-disc information reproducing apparatus
    7.
    发明授权
    Tracking servo system for optical-disc information reproducing apparatus 失效
    用于光盘信息再现装置的跟踪伺服系统

    公开(公告)号：US4520469A

    公开(公告)日：1985-05-28

    申请号：US471648

    申请日：1983-03-03

    申请人： Shigeru Todokoro ,  Hiroshi Nakane ,  Satoru Maeda

    发明人： Shigeru Todokoro ,  Hiroshi Nakane ,  Satoru Maeda

    IPC分类号： G11B7/09 ,  G11B7/00

    CPC分类号： G11B7/09 ,  G11B7/0901

    摘要： A tracking servo system for an optical-disc information reproducing apparatus includes (a) a light source for generating a light beam to scan a target track on an optical-disc wherein the information is stored as a series of pits arranged in the form of the track; (b) four photodetectors, arranged in two pairs with each pair intersecting the other and being disposed in a direction oblique to an image of the track for converting an image of the pit into respective electric signals; (c) a circuit for comparing the phases of the electric signals and for producing a tracking error signal ranging in accordance with the phase difference between the electric signals; and (d) a motor and lens for deflecting the light beam along a path perpendicular to the target track in response to the tracking error signal, whereby the light beam accurately scans the target track.

    摘要翻译： 用于光盘信息再现装置的跟踪伺服系统包括（a）用于产生光束以扫描光盘上的目标轨道的光源，其中该信息被存储为一系列以 跟踪; （b）四个光电检测器，每对配置成两对，彼此相交，并沿倾斜于轨道图像的方向设置，用于将凹坑的图像转换成各自的电信号; （c）用于比较电信号的相位和用于产生根据电信号之间的相位差测距的跟踪误差信号的电路; 以及（d）电动机和透镜，用于响应于跟踪误差信号沿着垂直于目标轨道的路径偏转光束，由此光束准确地扫描目标轨道。

    Method of harmonizing the impedances of an audio amplifier and loudspeaker interconnected therewith
    8.
    发明授权
    Method of harmonizing the impedances of an audio amplifier and loudspeaker interconnected therewith 失效
    协调与其互连的音频放大器和扬声器的阻抗的方法

    公开(公告)号：US4387270A

    公开(公告)日：1983-06-07

    申请号：US211187

    申请日：1980-11-28

    申请人： Hideki Sakano ,  Shigeru Todokoro

    发明人： Hideki Sakano ,  Shigeru Todokoro

    IPC分类号： H03F1/34 ,  H04B3/40 ,  H04R3/00 ,  H04R3/04

    CPC分类号： H04R3/002 ,  H03F1/56 ,  H03F3/181 ,  H04B3/40

    摘要： A method of harmonizing the impedances of an audio amplifier and a loudspeaker interconnected therewith, the audio amplifier including a line amplifier and a positive feedback circuit for compensating for the counter electromotive force of the loudspeaker. A voice coil of the loudspeaker is mechanically driven for generating an electric signal at input terminals of the loudspeaker. Then, the amplification degree of the line amplifier or the positive feedback circuit is adjusted to reduce the signal voltage between the input terminals of the loudespeaker to a minimum, during the circulation of the generated signal through the positive feedback circuit and the line amplifier.

    摘要翻译： 一种协调音频放大器和与其互连的扬声器的阻抗的方法，该音频放大器包括用于补偿扬声器的反电动势的线路放大器和正反馈电路。 扬声器的音圈被机械地驱动以在扬声器的输入端产生电信号。 然后，在通过正反馈电路和线路放大器产生的信号的循环期间，调节​​线路放大器或正反馈电路的放大度，以将扬声器的输入端之间的信号电压降至最小。

    Signal copy device for digital record/reproduction system
    9.
    发明授权
    Signal copy device for digital record/reproduction system 失效
    用于数字记录/再现系统的信号复制装置

    公开(公告)号：US4446489A

    公开(公告)日：1984-05-01

    申请号：US333051

    申请日：1981-12-21

    申请人： Tadashi Kojima ,  Shigeru Todokoro

    发明人： Tadashi Kojima ,  Shigeru Todokoro

    IPC分类号： H03M13/00 ,  G11B5/86 ,  G11B15/12 ,  G11B20/10 ,  G11B27/032 ,  G11B27/36 ,  G11B27/02

    CPC分类号： G11B15/125 ,  G11B27/032 ,  G11B27/36 ,  G11B5/86

    摘要： A signal copy device for a digital record/reproduction system includes an encoding circuit for producing a first digital encoded signal corresponding to an analog audio signal. The encoding circuit is connected to a first VTR through a switch section of a switch circuit and a first digital signal processor. A second VTR reproduces and generates a digital encoded audio signal to be copied. The switch circuit is connected to the encoding circuit and the second VTR. The switch circuit includes two switch sections which operate in cooperation with each other. When a reproduction signal is generated from the second VTR, the two switch sections are switched. The reproduction signal is supplied to the first VTR through these switch sections, thus accomplishing copying.

    摘要翻译： 用于数字记录/再现系统的信号复制装置包括用于产生对应于模拟音频信号的第一数字编码信号的编码电路。 编码电路通过开关电路和第一数字信号处理器的开关部分连接到第一VTR。 第二VTR再现并产生要复制的数字编码音频信号。 开关电路连接到编码电路和第二VTR。 开关电路包括彼此协作操作的两个开关部。 当从第二VTR产生再现信号时，切换两个开关部分。 通过这些开关部将再生信号提供给第一VTR，从而完成复制。

    Signal amplifier circuit using a pair of complementary junction field effect transistors
    10.
    发明授权
    Signal amplifier circuit using a pair of complementary junction field effect transistors 失效
    信号放大器电路采用一对互补结场效应晶体管

    公开(公告)号：US4021747A

    公开(公告)日：1977-05-03

    申请号：US617571

    申请日：1975-09-29

    申请人： Shigeru Todokoro

    发明人： Shigeru Todokoro

    IPC分类号： H03F1/34 ,  H03F3/16 ,  H03F3/20 ,  H03F3/213 ,  H03F3/30 ,  H03F3/34 ,  H03F3/345 ,  H03F3/347 ,  H03F3/42 ,  H03F3/185

    CPC分类号： H03F1/226 ,  H03F1/34 ,  H03F3/165 ,  H03F3/30 ,  H03F3/3044 ,  H03F3/345 ,  H03F3/426

    摘要： A signal amplifier circuit includes at least one pair of complementary junction field effect transistors serially connected in a source-to-source relationship between first and second power supply source terminals. In order to apply a reverse bias between the gate and source in each of the paired transistors, the gate bias potential of one of the paired transistors can be selected between a potential on the first power supply terminal and a potential of the commonly connected sources of the transistor pair, and the gate bias potential of the other transistor be selected between a potential at the second power supply terminal and the potential of the commonly connected sources of the transistor pair. According to this invention, direct coupling can be easily effected between amplifier stages using a common power supply source.

    摘要翻译： 信号放大器电路包括以第一和第二电源端子之间的源 - 源关系串联连接的至少一对互补结场效应晶体管。 为了在每个成对晶体管中的栅极和源极之间施加反向偏置，可以在第一电源端子上的电位和共同连接的源极的电位之间选择成对晶体管之一的栅极偏置电位 晶体管对，并且另一个晶体管的栅极偏置电位在第二电源端子处的电位和晶体管对的共同连接的源极的电位之间选择。 根据本发明，可以在使用公共电源的放大器级之间容易地实现直接耦合。