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87 条记录 (耗时 0.028 秒)

    Rotary-head type PCM data recording/reproducing method and apparatus with a redundancy-reduced control data format
    61.
    发明授权
    Rotary-head type PCM data recording/reproducing method and apparatus with a redundancy-reduced control data format 失效
    旋转头型PCM数据记录/再现方法和具有冗余减少的控制数据格式的装置

    公开(公告)号：US4622600A

    公开(公告)日：1986-11-11

    申请号：US685551

    申请日：1984-12-24

    申请人： Hiroo Okamoto ,  Masaharu Kobayashi ,  Takaharu Noguchi ,  Takao Arai

    发明人： Hiroo Okamoto ,  Masaharu Kobayashi ,  Takaharu Noguchi ,  Takao Arai

    IPC分类号： G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/30 ,  G11B5/09

    CPC分类号： G11B20/1208 ,  G11B20/10527 ,  G11B20/1803 ,  G11B20/1813 ,  G11B27/3027 ,  G11B27/3063 ,  G11B20/1211 ,  G11B2020/10546 ,  G11B2020/10592 ,  G11B2220/90 ,  G11B2220/913

    摘要： A rotary-head PCM data recorder in which PCM signals of m in number, a synchronizing signal, control signals related to the PCM signals, and a parity signal for error detection and correction are formed into data blocks, and data blocks of n in number are recorded on one track of a magnetic tape. Among the control signals, bits of signals common to n data blocks (i.e., information needed once for each track) are formed in distributed data allocated in a group of consecutive blocks or tracks, and multiple block distributive control data are recorded on one track multiple number of times, or multiple track distributive control data are recorded along n block strings a multiple number of times. In reproduction, block or track distributive data are composed to reproduce the control signals. The recorder thus arranged reduces the bit number needed for the control signals and compensates dropout of reproduced data due to scratches on the tape and the like.

    摘要翻译： 旋转磁头PCM数据记录器，其中m个数字的PCM信号，同步信号，与PCM信号相关的控制信号，以及用于错误检测和校正的奇偶校验信号形成数据块，数字数据n 记录在磁带的一个轨道上。 在控制信号中，分配在一组连续块或轨道中的分布式数据中形成n个数据块共同的信号位（即，对于每个磁道一次需要的信息），并且多个块分布控制数据被记录在一个磁道多个 次数或多个磁道分布控制数据沿着n个块串被多次记录。 在再现中，构成块或轨道分布数据以再现控制信号。 如此布置的记录器减少了控制信号所需的位数，并补偿了由于磁带等上的划痕而导致的再现数据的丢失。

    PCM signal recording/reproducing apparatus
    62.
    发明授权
    PCM signal recording/reproducing apparatus 失效
    PCM信号记录/再现装置

    公开(公告)号：US4617599A

    公开(公告)日：1986-10-14

    申请号：US620893

    申请日：1984-06-15

    申请人： Takaharu Noguchi ,  Masaharu Kobayashi ,  Takao Arai ,  Toshifumi Shibuya

    发明人： Takaharu Noguchi ,  Masaharu Kobayashi ,  Takao Arai ,  Toshifumi Shibuya

    IPC分类号： G11B5/008 ,  G11B5/035 ,  G11B5/09 ,  G11B15/467 ,  G11B20/10 ,  G11B20/18 ,  G11B5/00

    CPC分类号： G11B5/09 ,  G11B15/4671 ,  G11B20/10527 ,  G11B20/1809 ,  G11B5/00878 ,  G11B5/035

    摘要： A digital signal recording/reproducing apparatus capable of recording and reproducing digital signals having differences in respect to sampling frequency thereof and the number of quantization bits per sample by means of a common circuit arrangement includes means for varying revolution speed of rotating heads for recording and reproduction or traveling speed of a recording medium as a function of different sampling frequencies. A signal processing circuit for processing the digital signals so as to be suited for the recording on the recording medium is controlled by a clock signal of which frequency is changed in dependence on the different sampling frequencies. The signal processing circuit is arranged so that PCM data contained in a frame is constituted by a number of bits which is equal to a common multiple of the different quantization bit numbers and added with a common frame synchronizing signal and common error detection and correction codes to thereby prepare the PCM signal of the frame arrangement. The digital signals which differ in the sampling frequency and the quantization bit numbers can be recorded by same recording and reproducing apparatus with an improved efficiency with a same wavelength and in a same signal format.

    摘要翻译： 一种数字信号记录/再现装置，其能够记录和再现与其采样频率有差异的数字信号和通过公共电路装置的每个样本的量化位数，包括用于改变用于记录和再现的旋转磁头的转速的装置 或作为不同采样频率的函数的记录介质的行进速度。 用于处理适于在记录介质上进行记录的数字信号的信号处理电路由频率根据不同采样频率而变化的时钟信号控制。 信号处理电路被布置成使得包含在帧中的PCM数据由等于不同量化比特数的公倍数的比特数构成，并且加上公共帧同步信号和公共错误检测和校正码 从而准备帧配置的PCM信号。 采样频率和量化比特数不同的数字信号可以由相同的记录和再现装置以相同的波长和相同的信号格式提高效率来记录。

    Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein
    63.
    发明授权
    Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein 失效
    旋转头式数字信息信号记录和再现装置及其跟踪控制方法

    公开(公告)号：US4594621A

    公开(公告)日：1986-06-10

    申请号：US649654

    申请日：1984-09-12

    申请人： Takaharu Noguchi ,  Shigeru Yamazaki ,  Takao Arai

    发明人： Takaharu Noguchi ,  Shigeru Yamazaki ,  Takao Arai

    IPC分类号： G11B5/588 ,  G11B5/008 ,  G11B5/09 ,  G11B15/467 ,  G11B20/10 ,  G11B20/18 ,  H04N5/91 ,  G11B5/52 ,  G11B5/56

    CPC分类号： G11B15/4678 ,  G11B20/10527 ,  G11B20/1809 ,  G11B5/0086 ,  G11B5/00878 ,  G11B5/09

    摘要： In a rotary head type digital information signal recording and reproducing apparatus having plural rotary heads mounted on a rotary drum so as to be capable of recording and reproducing signals on parallel, oblique tracks on a magnetic tape, a tracking signal is recorded on at least one portion of each track which is not overlapped with a portion of each track where a digital information signal is recorded to avoid interference between the tracking signal and information signal. The tape travel speed and the rotary drum rotation speed are changed depending upon the transmission rate for a digital information signal to be recorded and reproduced to make the wavelength of a recorded signal frequency constant irrespective of the signal transmission rate. Tracking control is enhanced without increasing the error rate.

    摘要翻译： 在旋转磁头式数字信息记录和再现装置中，具有安装在旋转磁鼓上的多个旋转磁头，以便能够并行地记录和再现信号，磁带上的倾斜磁道，跟踪信号被记录在至少一个 每个磁道的不与记录有数字信息信号的每个磁道的一部分重叠的部分，以避免跟踪信号和信息信号之间的干扰。 根据要记录和再现的数字信息信号的传输速率，磁带移动速度和旋转磁鼓旋转速度改变，使得记录信号的波长与信号传输速率无关。 增强跟踪控制，而不会增加错误率。

    Method for fabrication of rear chip for hall effect magnetic head
    64.
    发明授权
    Method for fabrication of rear chip for hall effect magnetic head 失效
    霍尔效应磁头后置芯片的制造方法

    公开(公告)号：US4186481A

    公开(公告)日：1980-02-05

    申请号：US939210

    申请日：1978-09-05

    申请人： Takaharu Noguchi ,  Takao Ketori ,  Kohji Tamura ,  Tetsu Oi ,  Yutaka Miyoshi

    发明人： Takaharu Noguchi ,  Takao Ketori ,  Kohji Tamura ,  Tetsu Oi ,  Yutaka Miyoshi

    IPC分类号： G11B5/133 ,  G11B5/37 ,  G11B5/42

    CPC分类号： G11B5/376 ,  G11B5/1335 ,  Y10T29/49048 ,  Y10T29/49055

    摘要： A method for fabricating a rear core for the magnetic circuit of a Hall effect magnetic head is disclosed. The bottom size of the rear core protrusion is made substantially equal to the size of a Hall element. A gap is provided between the Hall element and the rear core. In order to minimize the gap, the rear core block is provided with supports for fabrication, whereby the gap between the Hall element and the bottom protrusion of the rear core is positioned accurately. The supports are removed at the end of fabrication. The bottom protrusion of the rear core prevented pressure from being applied to the Hall element, thus improving the sensitivity of the Hall effect magnetic head without increasing noises.

    摘要翻译： 公开了一种用于制造用于霍尔效应磁头的磁路的后芯的方法。 后芯突起的底部尺寸基本上等于霍尔元件的尺寸。 在霍尔元件和后芯之间提供间隙。 为了最小化间隙，后芯块设置有用于制造的支撑件，由此霍尔元件和后芯的底部突出部之间的间隙被精确地定位。 在制造结束时移除支撑件。 后芯的底部突起阻止了压力施加到霍尔元件，从而提高了霍尔效应磁头的灵敏度，而没有增加噪声。

    Digital information recording apparatus and digital information recording and reproducing apparatus
    70.
    发明授权
    Digital information recording apparatus and digital information recording and reproducing apparatus 失效
    数字信息记录装置和数字信息记录和再现装置

    公开(公告)号：US06429985B2

    公开(公告)日：2002-08-06

    申请号：US09851249

    申请日：2001-05-09

    申请人： Nobutaka Amada ,  Takaharu Noguchi ,  Takao Arai

    发明人： Nobutaka Amada ,  Takaharu Noguchi ,  Takao Arai

    IPC分类号： G11B509

    CPC分类号： G11B15/125 ,  B01F3/04539 ,  B01F3/04595 ,  B01F3/04602 ,  B01F7/0025 ,  B01F7/16 ,  B01F2003/0468 ,  G11B15/1875 ,  G11B15/4673 ,  G11B20/00007 ,  G11B20/10527 ,  G11B20/1866 ,  G11B27/3027 ,  G11B2020/10592 ,  G11B2220/90 ,  H04N5/78263 ,  H04N5/9201 ,  H04N5/9261 ,  H04N5/93

    摘要： A digital information recording apparatus having a first recording mode recording a first digital information signal of a first information rate on a magnetic tape and a second recording mode recording a second digital information signal of a second information rate on the magnetic tape. The apparatus includes a circuit which when the second information rate is less than 1/N times the first information rate (N is an integer ≧2), adds a dummy signal to the second digital information signal to make the recording rate of the second digital information signal substantially equal to the recording rate of the first digital information signal and a circuit which multiplexes identification signals for identifying the first and the second digital information signals or the first and the second recording rates on the first or the second digital information signal, for recording.

    摘要翻译： 一种数字信息记录装置，具有在磁带上记录第一信息速率的第一数字信息信号的第一记录模式和在磁带上记录第二信息速率的第二数字信息信号的第二记录模式。 该装置包括电路，当第二信息速率小于第一信息速率（N为整数> = 2）的1 / N倍时，将虚拟信号添加到第二数字信息信号以使第二信息速率的记录速率 数字信息信号基本上等于第一数字信息信号的记录速率，以及在第一或第二数字信息信号上复用用于识别第一和第二数字信息信号或第一和第二记录速率的识别信号的电路， 用于录音。