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31. 发明授权

US4758902A PCM signal recording and reproducing apparatus including simultaneous error detection/correction 失效
标题翻译： PCM信号记录和再现装置，包括同时的错误检测/校正
公开(公告)号：US4758902A
公开(公告)日：1988-07-19
申请号：US886235
申请日：1986-07-16
申请人： Hiroo Okamoto , Hiroyuki Kimura , Shigeru Yamazaki , Takaharu Noguchi , Masaharu Kobayashi
发明人： Hiroo Okamoto , Hiroyuki Kimura , Shigeru Yamazaki , Takaharu Noguchi , Masaharu Kobayashi
IPC分类号： G11B20/08 , G11B5/86 , G11B20/10 , G11B20/18 , G11B5/09
CPC分类号： G11B20/1809 , G11B20/10527 , G11B5/86
摘要： A PCM signal recording and reproducing apparatus comprises first and second memory circuits, in which PCM signals are read and written using the first memory circuit, while PCM signals stored in the second memory circuit are error-corrected. At the end of writing by the first memory circuit, the first and second memory circuits are interchanged to read the error-corrected PCM signals stored in the second memory circuit. The read-out error-corrected PCM signals are then recorded on another magnetic tape.
摘要翻译： PCM信号记录和再现装置包括第一和第二存储器电路，其中使用第一存储器电路读取和写入PCM信号，而存储在第二存储器电路中的PCM信号被纠错。在由第一存储器电路写入结束时，互换第一和第二存储器电路以读取存储在第二存储器电路中的经纠错的PCM信号。然后将读出错误校正的PCM信号记录在另一个磁带上。

32. 发明授权

US4677622A Error correction method and system 失效
标题翻译：纠错方法和系统
公开(公告)号：US4677622A
公开(公告)日：1987-06-30
申请号：US622711
申请日：1984-06-20
申请人： Hiroo Okamoto , Masaharu Kobayashi , Keizo Nishimura , Takaharu Noguchi , Takao Arai , Toshifumi Shibuya
发明人： Hiroo Okamoto , Masaharu Kobayashi , Keizo Nishimura , Takaharu Noguchi , Takao Arai , Toshifumi Shibuya
IPC分类号： G11B20/18 , G06F11/10
CPC分类号： G11B20/1809
摘要： This invention relates to an error correction upon reproduction of digital signals. The error correction is performed by decoding code words such as cross-interleaved Reed Solomon codes, in which first code blocks are formed by a plurality of information words which are in the first arrangement state and a plurality of first check words which are produced by codes associated with the plurality of information words with a Hamming distance of d.sub.1, and second code blocks are formed by a plurality of information words and a plurality of first check words which are in the second arrangement state and which consist of the said plurality of information words and the said plurality of first check words which are respectively included in the different first code blocks, and by a plurality of second check words which are produced by codes associated with the plurality of information words and the plurality of first check words with a Hamming distance of d.sub.2. At the first decoding stage, errors are detected and at the same time the flags indicative of the decoding states are added with respect to the second code blocks. At the second decoding stage, in accordance with the contents of the flags and on the basis of a combination of p.sub.2 and q selected from their combinations satisfying 2p.sub.2 +q.ltoreq.d.sub.1 -1, errors are detected and errors of p.sub.2 words are corrected and erasures of q words to which the flags were added are corrected with respect to the first code blocks.
摘要翻译：本发明涉及数字信号再现时的纠错。通过解码诸如交叉交织的里德·所罗门码的码字来执行纠错，其中第一码块由处于第一布置状态的多个信息字形成，并且由代码产生的多个第一检查字与具有汉明距离d1的多个信息字相关联，第二码块由处于第二布置状态的多个信息字和多个第一检查词形成，并且由所述多个信息字组成以及分别包含在不同的第一代码块中的所述多个第一校验字以及由与多个信息字相关联的代码产生的多个第二校验字和具有汉明距离的多个第一校验字的d2。在第一解码阶段，检测到错误，并且同时相对于第二代码块添加指示解码状态的标志。在第二解码阶段，根据标志的内容，并且基于从满足2p2 + q·d1-1的组合中选择的p2和q的组合，检测出错误并校正p2个字的错误并且相对于第一代码块校正添加了标志的q个字的擦除。

33. 发明授权

US4622600A Rotary-head type PCM data recording/reproducing method and apparatus with a redundancy-reduced control data format 失效
标题翻译：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。

34. 发明授权

US4617599A PCM signal recording/reproducing apparatus 失效
标题翻译： 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。

35. 发明授权

US4594621A Rotary head type digital information signal recording and reproducing apparatus and tracking control method therein 失效
标题翻译：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。

36. 发明授权

US4186481A Method for fabrication of rear chip for hall effect magnetic head 失效
标题翻译：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。

37. 发明授权

US08699864B2 Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signal 有权
标题翻译：用于接收数字信号的方法和装置以及用于记录和再现数字信号的装置
公开(公告)号：US08699864B2
公开(公告)日：2014-04-15
申请号：US12401182
申请日：2009-03-10
申请人： Hitoaki Owashi , Hiroo Okamoto , Kyoichi Hosokawa , Takaharu Noguchi
发明人： Hitoaki Owashi , Hiroo Okamoto , Kyoichi Hosokawa , Takaharu Noguchi
IPC分类号： H04N5/93 , H04N5/85
CPC分类号： H04N5/85 , G11B20/0084 , H04B7/18523 , H04N5/4401 , H04N5/77 , H04N5/913 , H04N7/165 , H04N9/8042 , H04N21/234318 , H04N21/2543 , H04N21/4147 , H04N21/4305 , H04N21/4307 , H04N21/4331 , H04N21/4334 , H04N21/4345 , H04N21/4367 , H04N21/43853 , H04N21/4405 , H04N21/44204 , H04N21/4623 , H04N21/47208 , H04N21/8355 , H04N21/8547 , H04N2005/91364
摘要： A method and apparatus is provided for receiving and/or reproducing a digital signal, capable of efficiently recording a compressed, packeted digital signal and inhibiting a copy thereof. An input packet signal is added with a time stamp indicating a relative time of an arrival of the packet, and the packet signals of digital information with the added time stamps are recorded at reduced intervals therebetween. In reproducing, a packet interval adjusting circuit restores the original packet intervals in accordance with the time stamps, and then a time stamp change circuit changes at least one bit of the time stamp and thereafter outputs the digital information.
摘要翻译：提供一种用于接收和/或再现数字信号的方法和装置，其能够有效地记录压缩的分组数字信号并禁止其复制。在输入分组信号中加上表示分组到达的相对时间的时间标记，并且以减小的间隔记录具有添加的时间标记的数字信息的分组信号。在再现时，分组间隔调整电路根据时间戳恢复原始分组间隔，然后时间戳变化电路改变时间标记的至少一位，然后输出数字信息。

38. 发明授权

US08306395B2 Input-output circuit, recording apparatus and reproduction apparatus for digital video signal 有权
标题翻译：用于数字视频信号的输入输出电路，记录装置和再现装置
公开(公告)号：US08306395B2
公开(公告)日：2012-11-06
申请号：US11936852
申请日：2007-11-08
申请人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
发明人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
IPC分类号： H04N9/88
CPC分类号： H04N7/173 , G11B15/087 , G11B15/4731 , G11B15/52 , G11B20/1211 , G11B20/1813 , G11B27/005 , G11B27/032 , G11B27/3027 , G11B27/3036 , G11B27/3063 , G11B2220/90 , G11B2220/91 , H04B7/18523 , H04L12/64 , H04N5/775 , H04N7/106 , H04N7/1675 , H04N9/7921 , H04N9/8042 , H04N9/8233 , H04N9/877 , H04N21/4325 , H04N21/4334 , H04N2005/91321
摘要： A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a packet signal containing the clock reference and a digitally compressed video signal, a time stamp for a packet is generated using a clock signal in phase with the clock reference and added to the particular packet, and the packet signals with the time stamp added thereto are recorded closely to each other in a data storage element such as a magnetic recording medium. At playback, the packet interval is output by being restored to the original length on the basis of the time stamp added to the packet in store.
摘要翻译：视频信号输入输出电路和记录再现装置，其中以数据形式输入的数字压缩视频信号可以有效和稳定地被记录和再生。在该装置中，从包含时钟参考和数字压缩视频信号的分组信号中检测时钟参考，使用与时钟参考同相的时钟信号产生分组的时间标记并将其添加到特定分组，并且附加有时间戳的分组信号在诸如磁记录介质的数据存储元件中彼此紧密地记录。在回放时，通过基于在存储中添加到分组的时间标记恢复到原始长度来输出分组间隔。

39. 发明授权

US08254758B2 Input-output circuit, recording apparatus and reproduction apparatus for digital video signal 有权
公开(公告)号：US08254758B2
公开(公告)日：2012-08-28
申请号：US12219246
申请日：2008-07-18
申请人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
发明人： Hiroo Okamoto , Kyoichi Hosokawa , Hitoaki Owashi , Hiroaki Tachibana , Takaharu Noguchi
IPC分类号： H04N9/88 , H04N5/917
CPC分类号： H04N7/173 , G11B15/087 , G11B15/4731 , G11B15/52 , G11B20/1211 , G11B20/1813 , G11B27/005 , G11B27/032 , G11B27/3027 , G11B27/3036 , G11B27/3063 , G11B2220/90 , G11B2220/91 , H04B7/18523 , H04L12/64 , H04N5/775 , H04N7/106 , H04N7/1675 , H04N9/7921 , H04N9/8042 , H04N9/8233 , H04N9/877 , H04N21/4325 , H04N21/4334 , H04N2005/91321
摘要： A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a packet signal containing the clock reference and a digitally compressed video signal, a time stamp for a packet is generated using a clock signal in phase with the clock reference and added to the particular packet, and the packet signals with the time stamp added thereto are recorded closely to each other in a data storage element such as a magnetic recording medium. At playback, the packet interval is output by being restored to the original length on the basis of the time stamp added to the packet in store.

40. 发明申请

US20070154175A1 Digital information recording-reproducing apparatus 有权
标题翻译：数字信息记录再现装置
公开(公告)号：US20070154175A1
公开(公告)日：2007-07-05
申请号：US11717708
申请日：2007-03-14
申请人： Nobutaka Amada , Takao Arai , Takaharu Noguchi , Hiroo Okamoto , Shigeru Yamazaki
发明人： Nobutaka Amada , Takao Arai , Takaharu Noguchi , Hiroo Okamoto , Shigeru Yamazaki
IPC分类号： H04N5/91
CPC分类号： G11B20/0071 , G11B5/00813 , G11B15/1875 , G11B20/00007 , G11B20/00086 , G11B20/00188 , G11B20/0021 , G11B20/00246 , G11B20/00557 , G11B20/00695 , G11B20/0084 , G11B27/3027 , G11B27/3036 , G11B2220/90 , H04N5/765 , H04N5/78263 , H04N5/919 , H04N5/9201 , H04N5/9261 , H04N5/9265
摘要： A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with an additional information includes a discriminator which discriminates a type of the digital information signal based on the additional information, a recorder which generates control information based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto, a reproducer which reproduces the recorded digital information signal recorded by the recorder, and a controller which controls reproduction based on the control information. When the discriminator discriminates the type of the digital information signal as being a specific type and the digital information signal is recorded by the recorder, the reproducer reproduces the digital information signal.
摘要翻译：记录和再现与附加信息一起发送的数字信息信号的数字信息记录再现装置包括基于附加信息鉴别数字信息信号的类型的鉴别器，基于附加信息生成控制信息的记录器将控制信息添加到数字信息信号，并且记录具有添加了控制信息的数字信息信号，再现记录器记录的记录数字信息信号的再现器和基于控制信息控制再现的控制器。当鉴别器将数字信息信号的类型鉴别为特定类型并且数字信息信号由记录器记录时，再现器再现数字信息信号。

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