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    Write clock pulse generator used for a time base corrector
    2.
    发明授权
    Write clock pulse generator used for a time base corrector 失效
    写时钟脉冲发生器用于时基校正器

    公开(公告)号：US4714965A

    公开(公告)日：1987-12-22

    申请号：US807745

    申请日：1985-12-11

    申请人： Tadaaki Yoshinaka ,  Takao Inoue ,  Kazuo Tomita

    发明人： Tadaaki Yoshinaka ,  Takao Inoue ,  Kazuo Tomita

    IPC分类号： H04N5/956 ,  H04N5/95 ,  H04N9/81 ,  H04N9/86 ,  H04N9/89 ,  H04N9/896 ,  H04N5/78 ,  H04N5/85

    CPC分类号： H04N9/896

    摘要： In a time base corrector for correcting time base fluctuations of signals reproduced from a record medium, on which a plurality of time-compressed component signals occurring within one horizontal period in a predetermined sequential order are recorded in response to a clock signal with a predetermined frequency, a write clock pulse generator used in the time base corrector includes a phase shifter for shifting the phase of an incoming write clock signal, whereby the write clock signal having a frequency different from the predetermined frequency is generated in response to a horizontal synchronizing signal, the start time of each of the plurality of reproduced component signals is detected and the shifting amount of the write clock signal by the phase shifter is switched in accordance with the detected output so as to synchronize the write clock signal with the start time of each of the reproduced component signal.

    摘要翻译： 在用于校正从记录介质再现的信号的时基波动的时基校正器中，响应于具有预定频率的时钟信号来记录以预定顺序次序在一个水平周期内出现的多个时间压缩分量信号 在时基校正器中使用的写时钟脉冲发生器包括用于移位输入写时钟信号的相位的移相器，由此响应于水平同步信号产生具有与预定频率不同的频率的写时钟信号， 检测多个再现分量信号中的每一个的开始时间，并且根据检测到的输出切换由移相器写入的时钟信号的移位量，以使写入时钟信号与每个的时钟信号的开始时间同步 再现的分量信号。

    Read start pulse generator for time base corrector
    3.
    发明授权
    Read start pulse generator for time base corrector 失效
    读取时基校正器的起始脉冲发生器

    公开(公告)号：US4714954A

    公开(公告)日：1987-12-22

    申请号：US826223

    申请日：1986-02-05

    申请人： Tadaaki Yoshinaka ,  Takao Inoue

    发明人： Tadaaki Yoshinaka ,  Takao Inoue

    IPC分类号： H04N9/89 ,  H04N9/896 ,  H04N9/475

    CPC分类号： H04N9/896

    摘要： A read start pulse generator comprises circuit elements for automatically adjusting the phase of a read start pulse signal by cancelling phase offset caused when phase adjustments are made to a synchronizing signal, burst signal, and hue signal.

    摘要翻译： 读取开始脉冲发生器包括用于通过消除当对同步信号，脉冲串信号和色调信号进行相位调整时引起的相位偏移来自动调整读取起始脉冲信号的相位的电路元件。

    Apparatus for recording information and apparatus for recording and reproducing information
    4.
    发明申请
    Apparatus for recording information and apparatus for recording and reproducing information 失效
    用于记录和再现信息的信息和装置的装置

    公开(公告)号：US20050105444A1

    公开(公告)日：2005-05-19

    申请号：US10489728

    申请日：2003-07-14

    申请人： Yujiro Ito ,  Masaaki Hara ,  Jun Sawai ,  Tsunenori Shiimoto ,  Nobuchika Momochi ,  Tadaaki Yoshinaka ,  Takashi Shimizu

    发明人： Yujiro Ito ,  Masaaki Hara ,  Jun Sawai ,  Tsunenori Shiimoto ,  Nobuchika Momochi ,  Tadaaki Yoshinaka ,  Takashi Shimizu

    IPC分类号： G11B7/004 ,  G11B7/00 ,  G11B7/003 ,  G11B7/09 ,  G11B7/125 ,  G11B7/135 ,  G11B7/14

    CPC分类号： G11B7/003 ,  G11B7/0901 ,  G11B7/0908 ,  G11B7/14

    摘要： An apparatus for recording information, which comprises a one-dimensional diode array (21) constituted with a plurality of laser diodes arranged in a line, a modulation control signal generator (23) for supplying the laser diodes constituting the one-dimensional diode array with modulation control signals based on information to be recorded, and an optical system (24) for causing laser light beams obtained from the one-dimensional diode array to be incident upon an optical tape (26), wherein said optical system is operative to focus the laser light beams which have been modulated in response to the modulation control signals and obtained from the one-dimensional diode array so that geometric optical images of the modulated light beams are reduced over the diffraction limit thereof on the optical tape. Accordingly, when information recording on the optical tape or information reproduction from the optical tape is carried out with the laser light beams incident upon the optical tape, difficulties in determining and maintaining positional relations among various optical means can be reduced and the coefficient of utilization of the laser light beams can be improved.

    摘要翻译： 一种用于记录信息的装置，包括由排列成一行的多个激光二极管构成的一维二极管阵列（21），用于向构成一维二极管阵列的激光二极管提供构成一维二极管阵列的调制控制信号发生器（23） 基于要记录的信息的调制控制信号和用于使得从一维二极管阵列获得的激光束入射到光学带（26）上的光学系统（24），其中所述光学系统可操作以将 已经根据调制控制信号调制并从一维二极管阵列获得的激光束，使得调制光束的几何光学图像在其光学带上的衍射极限上减小。 因此，当利用入射在光带上的激光进行光带上的信息记录或光带的信息再现时，可以减少各种光学装置之间的位置关系的确定和维持的困难， 可以改善激光束。

    Data decoding apparatus and data decoding method
    5.
    发明授权
    Data decoding apparatus and data decoding method 失效
    数据解码装置和数据解码方法

    公开(公告)号：US06373413B1

    公开(公告)日：2002-04-16

    申请号：US09579732

    申请日：2000-05-26

    申请人： Tadaaki Yoshinaka

    发明人： Tadaaki Yoshinaka

    IPC分类号： H03M1300

    CPC分类号： G11B20/10 ,  G11B20/10009 ,  G11B20/18 ,  H03M5/02 ,  H03M13/39

    摘要： This invention relates to a data decoding apparatus and data decoding method which perform maximum likelihood decoding by means of a simple construction, and which can be applied for example to a videotape recorder or optical disk device. In the data decoding apparatus or data decoding method according to this invention, a logic level inversion timing during one clock interval is detected from an input signal, a provisional identification result of identifying the input signal is corrected by effectively one clock identification error, the number of state transitions which can be obtained from the input signal is limited based on this corrected provisional identification result, and the most probable state transition of these limited state transitions is detected to output an input signal identification result. Further, in the data decoding apparatus or data decoding method according to this invention, a provisional identification result is obtained by identifying an input signal by effectively one clock identification error, a logic level inversion interval is corrected when a logic level inversion interval occurs in a shorter interval than a permitted logic level inversion interval in the input signal, the number of state transitions which can be obtained from the input signal is limited based on this corrected provisional identification result, and the most probable state transition of these limited state transitions is detected to output an input signal identification result.

    摘要翻译： 数据解码装置和数据解码方法技术领域本发明涉及一种通过简单的结构进行最大似然解码的数据解码装置和数据解码方法，其可以应用于例如录像机或光盘装置。 在根据本发明的数据解码装置或数据解码方法中，从输入信号检测一个时钟间隔期间的逻辑电平反转定时，通过有效地一个时钟识别误差来校正识别输入信号的临时识别结果， 可以根据该修正的临时识别结果限制从输入信号得到的状态转换，并且检测这些受限状态转换的最可能的状态转换以输出输入信号识别结果。 此外，在根据本发明的数据解码装置或数据解码方法中，通过有效地一个时钟识别误差来识别输入信号来获得临时识别结果，当逻辑电平反转间隔发生在 比输入信号中允许的逻辑电平反转间隔更短的间隔，可以基于该校正的临时识别结果来限制从输入信号获得的状态转换的数量，并且检测这些受限状态转换的最可能状态转换 以输出输入信号识别结果。

    Apparatus for recording and reproducing a digital/video signal having a reduced number of processing channels
    8.
    发明授权
    Apparatus for recording and reproducing a digital/video signal having a reduced number of processing channels 失效
    用于记录和再现具有减少数量的处理通道的数字/视频信号的装置

    公开(公告)号：US5465181A

    公开(公告)日：1995-11-07

    申请号：US210780

    申请日：1994-03-18

    申请人： Tadaaki Yoshinaka

    发明人： Tadaaki Yoshinaka

    IPC分类号： G11B5/09 ,  G11B5/53 ,  G11B20/12 ,  H04N5/7826 ,  H04N5/92 ,  H04N9/804 ,  H04N9/896 ,  H04N5/78

    CPC分类号： G11B5/534 ,  H04N9/804 ,  H04N9/896

    摘要： A total of eight magnetic heads are attached to a rotary drum in a manner such that the magnetic heads of four channels are spaced apart from the other magnetic heads of four channels by an interval of 180.degree.. A magnetic tape is wrapped around the peripheral surface of the rotary drum in a range of 270.degree.. The channels are repaired off and time divisionally multiplexed so that four signals are formed. Those signals are subjected to digital recording processes by the circuit blocks. Recording data of eight channels having phases which coincide with the recording phases of magnetic heads is produced by the FIFO memories on the output side.

    摘要翻译： 共有8个磁头以旋转磁鼓的方式连接，使得四个通道的磁头与四个通道的其它磁头间隔180°。 磁带在270°的范围内缠绕在旋转鼓的外围表面上。 通道被修复和时分多路复用，从而形成四个信号。 这些信号由电路块进行数字记录处理。 通过输出侧的FIFO存储器产生具有与磁头的记录相位一致的相位的8个通道的记录数据。

    Picture data recording apparatus and picture data reproducing apparatus
    9.
    发明授权
    Picture data recording apparatus and picture data reproducing apparatus 失效
    图像数据记录装置和图像数据再现装置

    公开(公告)号：US5384787A

    公开(公告)日：1995-01-24

    申请号：US73556

    申请日：1993-06-09

    申请人： Tadaaki Yoshinaka

    发明人： Tadaaki Yoshinaka

    IPC分类号： G11B20/18 ,  G11B20/10 ,  G11B20/12 ,  H04N5/782 ,  H04N5/92 ,  H04N5/926 ,  H04N5/93 ,  H04N7/52 ,  H04N19/00 ,  H04N19/126 ,  H04N19/134 ,  H04N19/146 ,  H04N19/172 ,  H04N19/196 ,  H04N19/423 ,  H04N19/46 ,  H04N19/59 ,  H04N19/625 ,  H04N19/65 ,  H04N19/70 ,  H04N19/85 ,  H04N19/88 ,  H04N19/89 ,  H04N19/895 ,  H04N19/91 ,  H04N21/438 ,  G06F11/10

    CPC分类号： H04N5/9264 ,  H04N19/115 ,  H04N19/124 ,  H04N19/152 ,  H04N19/176 ,  H04N19/46 ,  H04N19/60 ,  H04N21/236 ,  H04N21/434 ,  H04N19/146 ,  H04N5/782 ,  H04N5/93

    摘要： In a picture data recording system, a coding processing unit encodes picture data having a quantity of data generated at a different point in time so that its data quantity becomes equal to a predetermined target data quantity at every predetermined field. An error correcting code adding unit adds known data to the picture data coded by the coding processing unit within a correcting ability range by error correcting codes to carry out a parity calculation so as to add an error correcting code to picture data of a predetermined target data quantity. Thus, a recording unit records, onto a recording medium such as a magnetic tape, etc., the picture data having the predetermined target data quantity to which the error correcting code is added by the error correcting code adding unit. In addition, in a picture data reproducing system, a reproducing unit reproduces picture data from the recording medium. Then, an error correcting processing unit adds known data to the picture data having the predetermined target data quantity obtained from the reproducing unit to implement an error correcting processing thereto on the basis of an error correcting code used in the picture data recording system.

    摘要翻译： 在图像数据记录系统中，编码处理单元编码具有在不同时间点生成的数据量的图像数据，使得其数据量变得等于每个预定场的预定目标数据量。 误差校正码添加单元通过纠错码将校正能力范围内的编码处理单元编码的图像数据中的已知数据加上奇偶校验运算，从而对预定目标数据的图像数据添加纠错码 数量。 因此，记录单元将具有由纠错码添加单元添加了纠错码的预定目标数据量的图像数据记录到诸如磁带等记录介质上。 此外，在图像数据再现系统中，再现单元从记录介质再现图像数据。 然后，错误校正处理单元将已知数据添加到从再现单元获得的具有预定目标数据量的图像数据，以基于在图像数据记录系统中使用的纠错码来执行纠错处理。

    Automatic phase control circuit used for time base corrector
    10.
    发明授权
    Automatic phase control circuit used for time base corrector 失效
    自动相位控制电路用于时基校正器

    公开(公告)号：US4733311A

    公开(公告)日：1988-03-22

    申请号：US789827

    申请日：1985-10-21

    申请人： Tadaaki Yoshinaka

    发明人： Tadaaki Yoshinaka

    IPC分类号： H04N5/956 ,  H04N9/896 ,  H04N5/76 ,  H04N5/04

    CPC分类号： H04N9/896

    摘要： There is disclosed an automatic phase control apparatus for controlling a phase of a phase information signal used for producing an initial address, the initial address being used for writing into or for reading out from a memory circuit of a time base corrector for reducing a time base error included in a reproduced video signal, including a phase shift circuit for shifting the phase of a horizontal synchronizing pulse, a phase comparator for comparing a phase between the phase shifted horizontal synchronizing pulse and a constant wave signal being in phase with a chroma burst signal and a feedback circuit between the phase comparator and the phase shift circuit for applying a feedback signal in relation to an output signal of the phase comparator to the phase shift circuit so that the phase of the phase information pulse signal is synchronized with the constant wave signal. In this case, the automatic phase control apparatus is characterized by the feedback circuit which includes a capacitor for holding the amplitude of the output signal of the phase comparator, a display circuit connected to the capacitor for indicating the value of the output signal of the phase comparator and a stabilizer circuit connected between the capacitor and a switch circuit for stabilizing the feedback signal so that the value of the feedback signal is approximately zero voltage when the switch circuit is operated.

    摘要翻译： 公开了一种用于控制用于产生初始地址的相位信息信号的相位的自动相位控制装置，该初始地址用于写入时基校正器的存储器电路或用于从时基校正器读出以减少时基 包括在再现视频信号中的误差，包括用于移位水平同步脉冲的相位的相移电路;相位比较器，用于比较相移水平同步脉冲和与色度脉冲信号同相的恒定波信号 以及相位比较器和相移电路之间的反馈电路，用于将相对比较器的输出信号相对于相移电路施加反馈信号，使得相位信息脉冲信号的相位与恒定波信号同步 。 在这种情况下，自动相位控制装置的特征在于包括用于保持相位比较器的输出信号的振幅的电容器的反馈电路，连接到电容器的显示电路，用于指示相位的输出信号的值 比较器和连接在电容器和开关电路之间的稳定器电路，用于稳定反馈信号，使得当开关电路工作时反馈信号的值近似为零电压。