公开(公告)号：US4808708A

公开(公告)日：1989-02-28

申请号：US925890

申请日：1986-10-30

申请人： Tadao Yoshida ,  Kaoru Kimura

发明人： Tadao Yoshida ,  Kaoru Kimura

IPC分类号： C07H19/04 ,  C07H21/00 ,  C07H21/04 ,  C07H17/00

CPC分类号： C07H21/00 ,  C07H19/04 ,  C07H21/04 ,  Y02P20/55

摘要： Novel phosphorsulfide derivatives of deoxynucleosides or deoxynucleotides are provided, which have the general formula: ##STR1## wherein R.sup.1 is a hydroxy-protecting group; R.sup.2 is a phosphate-protecting group; R.sup.3 is an aryl group; B.sub.1 and B.sub.2 may be the same or different and each are a base residue which may have a protecting group; and n is zero or a positive integer, provided that if n is 2 or larger, the respective R.sup.2 may be the same or different. They are prepared by reacting a deoxynucleoside or deoxynucleotide with a 1,2,4-triazolylphosphine compound and are useful as intermediates for the preparation of oligodeoxy-nucleotides.

摘要翻译： 提供了脱氧核苷或脱氧核苷酸的新型磷硫醚衍生物，其具有以下通式：其中R 1是羟基保护基; R2是磷酸酯保护基; R3是芳基; B1和B2可以相同或不同，并且各自是可以具有保护基的碱残基; 并且n为0或正整数，条件是如果n为2或更大，则相应的R 2可以相同或不同。 它们通过使脱氧核苷或脱氧核苷酸与1,2,4-三唑基膦化合物反应制备，并且可用作制备寡脱氧核苷酸的中间体。

公开(公告)号：US06380378B1

公开(公告)日：2002-04-30

申请号：US09471802

申请日：1999-12-23

申请人： Akinori Kitamura ,  Yoji Horie ,  Takayoshi Uchida ,  Tadao Yoshida

发明人： Akinori Kitamura ,  Yoji Horie ,  Takayoshi Uchida ,  Tadao Yoshida

IPC分类号： C07H2100

CPC分类号： C07H21/00 ,  C07H19/04 ,  Y02P20/55

摘要： Novel nucleotide compounds represented by the formula (I) wherein R1 represents a protective group or a PEG bearing organic group; R2, R2′, R2″, R3, R3′ and R3″ each represents a hydrogen atom or an alkyl, cycloalkyl, aryl or aralkyl group which may contain a hetero-atom; B1, B2, B3 and B4 each represents a base, if necessary, protected by a protective group common in nucleotide chemistry or by a PEG bearing organic group; X, X′ and X″ each represents an oxygen atom or a sulfur atom; Y represents an azolyl group, a mono- or di-alkylamino group or a saturated nitrogenous heterocyclic ring; A1, A2, A3 and A4 each represents a hydrogen atom, a hydroxyl group, an alkoxy group or a trialkylsilyloxy group; and m and n each represents 0 or an integer of 1 to 100. The nucleotide of the formula (I) can be used as it is in a reaction mixture for further reaction with 3′-O- and 5′-O-unprotected nucleoside or nucleotide of the formula (II) to yield a nucleotide block or oligonucleotide, and thus is useful as in situ DNA synthesis reagents.

摘要翻译： 由式（I）表示的新型核苷酸化合物，其中R 1表示保护基或带有PEG的有机基团; R2，R2'，R2“，R3，R3'和R3”各自表示氢原子或可含有杂原子的烷基，环烷基，芳基或芳烷基; B1，B2，B3和B4各自表示碱基，如果需要，可以通过核苷酸化学中常见的保护基团或由携带PEG的有机基团保护; X，X'和X“各自表示氧原子或硫原子; Y表示唑基，单 - 或二 - 烷基氨基或饱和含氮杂环; A1，A2，A3和A4各自表示氢原子，羟基，烷氧基或三烷基甲硅烷氧基; m和n各自表示0或1〜100的整数。式（I）的核苷酸可直接用于反应混合物中以进一步与3'-O-和5'-O-未保护的核苷反应 或式（II）的核苷酸产生核苷酸嵌段或寡核苷酸，因此可用作原位DNA合成试剂。

公开(公告)号：US5552896A

公开(公告)日：1996-09-03

申请号：US154629

申请日：1993-11-18

申请人： Tadao Yoshida

发明人： Tadao Yoshida

IPC分类号： G11B20/10 ,  G11B20/00 ,  G11B20/12 ,  G11B27/10 ,  H04N5/76 ,  G11B7/24

CPC分类号： G11B20/1251 ,  G11B20/00007 ,  G11B20/1217 ,  G11B2220/2525 ,  G11B2220/2537 ,  G11B2220/2545

摘要： A disk recording/reproducing apparatus for recording data on a disk with addition data recorded in a playback only area of the disk along with recording data having the same data structure as that of data which can be recorded in a recording/reproducing area of the disk, thus making it possible to reproduce the addition data along with the recording data. Compressed data obtained by implementing, by using an ATRAC encoder 13, data compression to successively inputted digital data divided into clusters, with cluster connection sectors longer than an interleaving length provided at connection portions of each of the clusters, to implement interleaving processing of the recording data to record them into a recording/reproducing area of a magneto-optical disk 2, and to reproduce them by using an optical head 3. From a reproduction or playback only area of the magneto-optical disk 2, addition data are reproduced from sectors corresponding to the cluster connection sectors.

摘要翻译： 一种磁盘记录/再现装置，用于在磁盘上记录数据，其中附加数据记录在盘的重放区域中，以及具有与可记录在盘的记录/再现区域中的数据相同的数据结构的记录数据 ，从而使得可以与记录数据一起再现加法数据。 压缩数据通过使用ATRAC编码器13进行数据压缩，以连续输入被划分成簇的数字数据，其长度大于在每个簇的连接部分处提供的交织长度的簇连接扇区，以实现记录的交织处理 数据将其记录到磁光盘2的记录/再现区域中，并且通过使用光学头3再现它们。从磁光盘2的再现或重放区域，从扇区 对应于群集连接扇区。

公开(公告)号：US5388093A

公开(公告)日：1995-02-07

申请号：US945488

申请日：1992-09-16

申请人： Tadao Yoshida ,  Takashi Ohmori

发明人： Tadao Yoshida ,  Takashi Ohmori

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B21/08 ,  G11B23/36 ,  G11B27/00 ,  G11B27/034 ,  G11B27/036 ,  G11B27/10 ,  G11B27/11 ,  G11B27/30 ,  G11B27/32 ,  G11B7/007 ,  G11B7/013

CPC分类号： G11B27/329 ,  G11B20/00007 ,  G11B27/036 ,  G11B27/105 ,  G11B27/11 ,  G11B27/3063 ,  G11B2020/1277 ,  G11B2220/211 ,  G11B2220/2529 ,  G11B2220/65 ,  G11B27/034

摘要： A disc recording apparatus in which continuous recording data is subdivided and recorded in plural recording zones of the disc in the subdivided state, is disclosed, A system controller controls the recording position and the reproducing position of the recording data with respect to data zones of a recording/reproducing region of a magneto-optical disc. The continuous recording data are subdivided for recording in plural data recording zones, while track number data indicating the continuous recording data recorded in the data zones, address data indicating the positions of the data zones and address data indicating the linking destination for one to another data zone, are recorded in a lead-in region of the recording/reproducing region under control of the system controller. A disc reproducing apparatus fop reproducing the recorded data recorded by the disc recording apparatus and a disc-shaped recording medium used in the disc recording apparatus and in the disc reproducing apparatus are also disclosed.

摘要翻译： 公开了一种光盘记录装置，其中连续记录数据被细分并记录在分割状态的盘的多个记录区中。系统控制器控制记录数据相对于数据区的记录位置和再现位置 磁光盘的记录/再现区域。 连续记录数据被细分为用于记录在多个数据记录区中，而轨道号数据表示记录在数据区中的连续记录数据，表示数据区的位置的地址数据和表示一个到另一个数据的连接目的地的地址数据 区域被记录在系统控制器的控制下的记录/再现区域的导入区域中。 还公开了一种再现由盘记录装置记录的记录数据的光盘重放装置和在盘记录装置和盘重放装置中使用的盘形记录介质。

公开(公告)号：US5363362A

公开(公告)日：1994-11-08

申请号：US48359

申请日：1993-04-15

申请人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata ,  Hideki Nagashima ,  Tadao Yoshida ,  Kazuhiko Fujiie ,  Hirotoshi Fujisawa ,  Hiroshi Mukawa

发明人： Yasuaki Maeda ,  Ryo Ando ,  Hideo Obata ,  Hideki Nagashima ,  Tadao Yoshida ,  Kazuhiko Fujiie ,  Hirotoshi Fujisawa ,  Hiroshi Mukawa

IPC分类号： G11B20/12 ,  G11B7/013 ,  G11B20/00 ,  G11B20/10 ,  G11B27/00 ,  G11B27/10 ,  G11B27/30 ,  G11B27/34 ,  G11B5/09

CPC分类号： G11B20/00007 ,  G11B20/10527 ,  G11B27/005 ,  G11B27/3027 ,  G11B27/34 ,  G11B7/013 ,  G11B2020/1277 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/255 ,  G11B27/3063

摘要： There is provided a disc recording apparatus for recording digital data by an optical unit in such a manner that time compressed digital data are arranged into a plurality of clusters at an interval of a predetermined number of sectors, a cluster-linking sector having a length longer than an interleaving length is provided at each linking part of each cluster, and the digital data are subsequently interleaved and recorded on a disc-shaped recording medium so that interleaving at the time of data recording on the cluster-by-cluster basis is within the range of the cluster-linking sector. There is also provided a disc reproducing apparatus for reproducing digital data by an optical unit in which playback data are obtained by reproducing record data recorded on a disc-shaped recording medium in such a manner that a cluster-linking sector longer than an interleaving length is provided in a linking section of each cluster composed of a predetermined number of sectors, the resulting data is interleaved and recorded on the disc-shaped recording medium, and the playback data are deinterleaved and freed or the cluster-linking sectors so as to be stored transiently in a storage unit. Playback data are written in the storage unit when the data volume of playback data stored in the storage unit becomes smaller than a predetermined volume to maintain a readout space in the storage unit which is in excess of the predetermined data volume. In this manner, data may be read out continuously from the storage unit at a predetermined rate without interrupting the reproducing operation at the cluster-linking sector of the data recorded on the medium.

摘要翻译： 提供了一种用于以光学单元记录数字数据的盘记录装置，使得时间压缩的数字数据以预定数量的扇区的间隔被布置成多个簇，具有长度更长的簇连接扇区 比在每个簇的每个链接部分处提供交织长度，并且数字数据随后被交织并记录在盘形记录介质上，使得在逐个簇的基础上的数据记录时的交织在 集群链接部门的范围。 还提供了一种用于通过光学单元再现数字数据的盘再现装置，其中通过以记录在盘形记录介质上的记录数据来再现数据，使得长于交织长度的簇链接扇区 提供在由预定数量的扇区组成的每个簇的链接部分中，所得到的数据被交织并记录在盘形记录介质上，并且重放数据被去交织和释放，或者聚类链接扇区被存储 暂时在存储单元中。 当存储在存储单元中的重放数据的数据量变得小于预定的音量时，将重放数据写入存储单元，以保持存储单元中超出预定数据量的读出空间。 以这种方式，可以以预定的速率从存储单元以连续的数据读取数据，而不会中断记录在介质上的数据的聚类链接扇区的再现操作。

公开(公告)号：US5244705A

公开(公告)日：1993-09-14

申请号：US746967

申请日：1991-08-19

申请人： Katsuaki Tsurushima ,  Tadao Yoshida

发明人： Katsuaki Tsurushima ,  Tadao Yoshida

IPC分类号： G11B7/007 ,  G11B7/24 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36

CPC分类号： G11B20/00007 ,  G11B20/10527 ,  G11B20/1251 ,  G11B27/3027 ,  G11B27/3036 ,  G11B27/3063 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B7/007 ,  G11B7/24 ,  G11B20/1217 ,  G11B2020/10592 ,  G11B2220/213 ,  G11B2220/2525 ,  G11B2220/2545 ,  Y10S428/913

摘要： A disc-shaped recording medium for storing compressed audio data which have been recorded thereon by an optical recording apparatus. The inner diameter of a data recording region of the disc-shaped recording medium is in the range from 28 mm to 50 mm. The outer diameter of the data recording region is in the range from 58 mm to 62 mm for an inner diameter of 28 mm, and is in the range from 71 mm to 73 mm for an inner diameter of 50 mm. The disc-shaped recording medium may be used with a small-sized portable disc recording and reproducing apparatus, and can record compressed audio data for playback with a playback time substantially as long as that of a standard compact disc having 12 cm diameter.

公开(公告)号：US5148417A

公开(公告)日：1992-09-15

申请号：US513224

申请日：1990-04-23

申请人： Alan Wong ,  Katsuya Hori ,  Tadao Yoshida

发明人： Alan Wong ,  Katsuya Hori ,  Tadao Yoshida

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/09 ,  G11B19/02 ,  G11B20/10

CPC分类号： G11B7/0946 ,  G11B19/02 ,  G11B20/10527 ,  G11B2020/10703 ,  G11B2020/1099

摘要： The present invention is concerned with an optical disk reproducing apparatus for reproducing digital data from an optical disk, such as an audio compact disk and, above all, with such apparatus in which a continuous playback output may be produced even when track jump should occur due to vibrations or the like. With the optical disk reproducing apparatus according to the present invention, digital data detected from an optical disk are sequentially written in a RAM for subsequent reading so that data stored in the RAM continue to be read even on the occurrence of the track jump to provide a continuous playback output. On the other hand, the optical disk is reproduced at an increased speed for a predetermined time period after the light spot irradiating the optical disk resets to its original position from track jump to replenish digital data to the RAM.

公开(公告)号：US4500982A

公开(公告)日：1985-02-19

申请号：US604433

申请日：1984-05-01

申请人： Tadao Yoshida

发明人： Tadao Yoshida

IPC分类号： G11B19/24 ,  G11B19/28

CPC分类号： G11B19/28 ,  G11B19/24

摘要： A servo system for use with apparatus for reproducing a disk on which PCM pulse code modulation signals have been modulated by a run length limited code and which are recorded at a constant linear velocity and the circuit detects the length of a period during which a playback signal is inverted and produces an output corresponding to the detected length and has a peak value hold circuit for maintaining a peak value of the output and a bottom value hold circuit at a later stage of the peak value hold circuit which has a time constant which is larger than the charging time constant of the peak value hold circuit so as to produce an output which follows the output of the peak value hold circuit. A comparator compares the output of the bottom value hold circuit with a reference value so as to produce a signal for controlling a disk drive motor such that a maximum or minimum length during which the playback signal is inverted equals the length when the linear velocity is a reference value so that the linear velocity will be maintained constant during playback.

摘要翻译： 一种伺服系统，用于再现其上PCM脉冲编码调制信号已被游程长度限制码调制并以恒定线速度记录的盘的装置，该电路检测重放信号 被反相并产生对应于检测长度的输出，并且具有峰值保持电路，用于将峰值保持电路保持在峰值保持电路的稍后阶段，该峰值保持电路的时间常数较大 超过峰值保持电路的充电时间常数，以产生跟随峰值保持电路的输出的输出。 比较器将底部值保持电路的输出与参考值进行比较，以产生用于控制盘驱动电动机的信号，使得重放信号反转的最大或最小长度等于线速度为 参考值，使得线速度在播放过程中保持不变。

公开(公告)号：US4363001A

公开(公告)日：1982-12-07

申请号：US171454

申请日：1980-07-23

申请人： Tadao Suzuki ,  Tadao Yoshida

发明人： Tadao Suzuki ,  Tadao Yoshida

IPC分类号： H03G3/02 ,  H03G1/02 ,  H03G3/00 ,  H03G5/04 ,  H03G9/14

CPC分类号： H03G5/04 ,  H03G1/02 ,  H03G3/00 ,  H03G3/001

摘要： A digital gain control apparatus includes a digital control signal generator producing a plurality of serial-binary coded signals, a clock pulse signal and a strobe signal. A shift register is supplied with the plurality of serial-binary coded signals and the clock pulse signal from the digital control signal generator. A latch circuit is connected to the output of the shift register and is supplied with the strobe signal from the digital control signal generator to convert the plurality of serial-binary coded signals into a plurality of parallel-binary coded signals. A decoder is connected to the output of the latch circuit to produce a plurality of control signals from the plurality of parallel-binary coded signals. A function selector circuit and a volume adjusting circuit for the selected functions is also provided, each being controlled by the plurality of control signals. The shift register, latch circuit and volume adjusting circuit are formed in one chip-integrated circuit. In one embodiment, a bass and treble tone control circuit is provided which is controlled by the output of the decoder.

摘要翻译： 数字增益控制装置包括产生多个串行二进制编码信号的数字控制信号发生器，时钟脉冲信号和选通信号。 移位寄存器被提供有来自数字控制信号发生器的多个串行二进制编码信号和时钟脉冲信号。 锁存电路连接到移位寄存器的输出端，并从数字控制信号发生器提供选通信号，将多个串行二进制编码信号转换成多个并行二进制编码信号。 解码器连接到锁存电路的输出，以产生来自多个并行二进制编码信号的多个控制信号。 还提供了用于所选功能的功能选择器电路和音量调节电路，每个功能选择器电路和音量调节电路由多个控制信号控制。 移位寄存器，锁存电路和音量调节电路形成在一个芯片集成电路中。 在一个实施例中，提供了由解码器的输出控制的低音和高音音调控制电路。

公开(公告)号：US4173739A

公开(公告)日：1979-11-06

申请号：US943139

申请日：1978-09-18

申请人： Tadao Yoshida

发明人： Tadao Yoshida

IPC分类号： H03F1/00 ,  H03F1/42 ,  H03F1/52 ,  H03F3/20 ,  H03F3/217 ,  H03F3/04

CPC分类号： H03F3/217 ,  H03F1/52 ,  H03F2200/426

摘要： An overload detecting circuit for a PWM amplifier includes an output current detecting circuit and an output voltage detecting circuit. The output of the output voltage detecting circuit is supplied to a rectifying circuit having a discharge time constant determined by the cut-off frequency of a low pass filter as a demodulator of the PWM amplifier. A comparison circuit is provided to produce an overload indicative signal in response to the comparison result between the outputs of the rectifying circuit and of the output current detecting circuit.

摘要翻译： 用于PWM放大器的过载检测电路包括输出电流检测电路和输出电压检测电路。 输出电压检测电路的输出被提供给具有由作为PWM放大器的解调器的低通滤波器的截止频率确定的放电时间常数的整流电路。 提供比较电路以响应于整流电路的输出和输出电流检测电路之间的比较结果产生过载指示信号。