公开(公告)号：US5663844A

公开(公告)日：1997-09-02

申请号：US156408

申请日：1993-11-19

申请人： Makoto Gohda ,  Shinichi Yamashita

发明人： Makoto Gohda ,  Shinichi Yamashita

IPC分类号： G11B5/035 ,  G11B20/06 ,  H04L25/03

CPC分类号： H04L25/03019 ,  G11B20/06 ,  G11B5/035

摘要： A circuit is provided for emphasizing or suppressing both a frequency corresponding to an upper sideband and a frequency corresponding to a lower sideband with respect to a frequency corresponding to the carrier of a frequency-modulated signal in equalizing the frequency-modulated signal reproduced from the recording medium. With this arrangement, it is possible to effectively compensate for the nonlinearity of a magnetic recording and reproducing system even in the case of a wide deviation. Also, the envelope levels of the portions of a frequency-modulated signal which are formed by frequency-modulating portions of a signal whose levels differ from each other, are extracted to adjust the equalizing characteristics of the equalizing circuit in accordance with the difference between the levels, whereby variations in the characteristics of a reproduction equalizing circuit due to variations with time can be appropriately compensated for.

摘要翻译： 提供一种电路，用于相对于与频率调制信号的载波相对应的频率来强调或抑制对应于上边带的频率和对应于下边带的频率，以均衡从记录再现的频率调制信号 中。 利用这种布置，即使在宽偏差的情况下，也可以有效地补偿磁记录和再现系统的非线性。 此外，提取通过其电平彼此不同的信号的频率调制部分形成的频率调制信号的部分的包络电平，以根据所述均衡电路的差异来调整均衡电路的均衡特性 电平，由此可以适当地补偿由于随时间变化的再现均衡电路的特性的变化。

公开(公告)号：US5347408A

公开(公告)日：1994-09-13

申请号：US828137

申请日：1992-01-30

申请人： Makoto Gohda ,  Shinichi Yamashita ,  Yasuyuki Tanaka

发明人： Makoto Gohda ,  Shinichi Yamashita ,  Yasuyuki Tanaka

IPC分类号： G11B5/09 ,  G11B5/66 ,  G11B5/85 ,  G11B20/10 ,  G11B5/035 ,  B05D5/12 ,  C23C16/00 ,  H01F1/00

CPC分类号： G11B5/85 ,  G11B20/10009 ,  G11B5/09 ,  G11B5/66 ,  Y10S428/928 ,  Y10T428/12465

摘要： A digital signal to be recorded is converted into a digital signal having a suppressed low-frequency spectrum and having a shortest recording wavelength greater than half an original shortest recording wavelength, and the converted digital signal is recorded on a magnetic recording medium in which a plurality of metal evaporated films having different crystal-growth directions are laminated. The digital signal is reproduced from the magnetic recording medium in which the plurality of metal evaporated films having different crystal-growth directions are laminated. Waveform equalization is performed on the reproduced digital signal, and integration detection is performed on the waveform-equalized digital signal, thereby restoring an original digital signal.

摘要翻译： 要被记录的数字信号被转换为具有抑制的低频谱并具有大于原始最短记录波长的一半的最短记录波长的数字信号，并且转换的数字信号被记录在磁记录介质上，其中多个 的具有不同晶体生长方向的金属蒸镀膜。 数字信号从层叠有不同晶体生长方向的多个金属蒸镀膜的磁记录介质再现。 对再现的数字信号进行波形均衡，对波形均衡的数字信号进行积分检测，从而恢复原始的数字信号。

公开(公告)号：US5528307A

公开(公告)日：1996-06-18

申请号：US395296

申请日：1995-02-27

申请人： Mitsuru Owada ,  Shinichi Yamashita ,  Makoto Gohda

发明人： Mitsuru Owada ,  Shinichi Yamashita ,  Makoto Gohda

IPC分类号： H04N9/896 ,  H04N5/95

CPC分类号： H04N9/896

摘要： An apparatus for correcting a time base of a video signal generates a clock which is phase-synchronized with a sync. signal of the video signal and has the same frequency. In a special reproducing mode, the apparatus switches an output level of a phase comparator, which phase-compares the sync. signal and the clock to a predetermined level, which is applied to a controlled oscillator and resets a frequency divider which frequency-divides the output of the controlled oscillator, in accordance with the sync. signal to produce the video signal which can be visually recognized even in the special reproducing mode. The apparatus samples and holds the output level of the phase comparator when the video signal drops out and resets the frequency divider which produces the clock by frequency-dividing the output of the controlled oscillator, when the dropout is recovered so that a video signal of high quality is produced immediately after the recovery of the dropout of the video signal.

摘要翻译： 用于校正视频信号的时基的装置产生与同步相位同步的时钟。 视频信号的信号并具有相同的频率。 在特殊再现模式中，该装置切换相位比较器的输出电平，该相位比较器进行相位比较同步。 信号和时钟到预定电平，其被施加到受控振荡器并且根据同步来复位频率划分受控振荡器的输出的分频器。 信号以产生即使在特殊再现模式下也可视觉识别的视频信号。 当视频信号丢失时，该装置采样并保持相位比较器的输出电平，并且通过对受控振荡器的输出进行分频来复位产生时钟的分频器，当压降恢复时，视频信号为高电平 在恢复视频信号的丢失之后立即产生质量。

公开(公告)号：US5335077A

公开(公告)日：1994-08-02

申请号：US906267

申请日：1992-06-26

申请人： Shinichi Yamashita ,  Shingo Ikeda ,  Makoto Gohda

发明人： Shinichi Yamashita ,  Shingo Ikeda ,  Makoto Gohda

IPC分类号： H04N9/896 ,  A04N9/89

CPC分类号： H04N9/896

摘要： A time base correcting device inputs a video signal including a sync. signal and a burst signal, produces an error signal representing a phase difference between a clock signal synchronized with the sync. signal and the burst signal, writes the video signal into the memory in synchronism with the clock signal having a phase thereof adjusted in accordance with the error signal, produces an interpolation signal to interpolate a plurality of adjacent error signals along a time base and controls the readout from the memory by the error signals and the interpolation signal. In this manner, it attains time base correction, particularly velocity error correction with high accuracy.

摘要翻译： 时基校正装置输入包括同步的视频信号。 信号和突发信号产生表示与同步同步的时钟信号之间的相位差的误差信号。 信号和突发信号，将视频信号与具有根据误差信号调整的相位的时钟信号同步地写入存储器，产生内插信号，以沿着时基内插多个相邻的误差信号，并且控制 通过误差信号和插值信号从存储器读出。 以这种方式，可以实现时基校正，特别是高精度的速度误差校正。

公开(公告)号：US5157355A

公开(公告)日：1992-10-20

申请号：US815907

申请日：1991-12-31

申请人： Akihiro Shikakura ,  Shinichi Yamashita ,  Makoto Gohda ,  Yasuyuki Tanaka

发明人： Akihiro Shikakura ,  Shinichi Yamashita ,  Makoto Gohda ,  Yasuyuki Tanaka

IPC分类号： H03L7/087 ,  H03L7/14

CPC分类号： H03L7/087 ,  H03L7/14

摘要： A phase-locked loop device for producing an output clock synchronized in phase with an input clock, wherein in addition to a loop responsive to the phase difference between an output clock of a controlled oscillator and the input clock for controlling the controlled oscillator, there is provided another loop for controlling the controlled oscillator in accordance with the frequency difference between the output clock of the controlled oscillator and a reference clock.

摘要翻译： 一种用于产生与输入时钟相位同步的输出时钟的锁相环装置，其中除了响应于受控振荡器的输出时钟和用于控制受控振荡器的输入时钟之间的相位差的一个环路之外，还存在 提供了另一个环路，用于根据受控振荡器的输出时钟和参考时钟之间的频率差来控制受控振荡器。

公开(公告)号：US20090127642A1

公开(公告)日：2009-05-21

申请号：US12281720

申请日：2007-03-05

申请人： Shinichi Yamashita ,  Hiroyuki Watanabe ,  Hideaki Suzuki ,  Kengo Suzuki

发明人： Shinichi Yamashita ,  Hiroyuki Watanabe ,  Hideaki Suzuki ,  Kengo Suzuki

IPC分类号： H01L31/02 ,  H01J43/04 ,  H01L21/04

CPC分类号： H01J9/12 ,  H01J1/34 ,  H01J40/16

摘要： A photoelectric element 10 includes a substrate 12 that transmits incident light, an intermediate layer 14 made of HfO2, an under layer 16, and a photoelectron emitting layer 18 containing an alkali metal. That is, the photoelectric element 10 includes the intermediate layer 14 formed between the substrate 12 and the photoelectron emitting layer 18. Thereby, a photoelectric element that can exhibit a high value of effective quantum efficiency, an electron tube including the same, and a method for producing a photoelectric element are realized.

摘要翻译： 光电元件10包括透射入射光的基板12，由HfO 2制成的中间层14，下层16和含有碱金属的光电子发射层18。 也就是说，光电元件10包括形成在基板12和光电子发射层18之间的中间层14.由此，可以显示高有效量子效率值的光电元件，包括该光电元件的电子管和方法 实现光电元件的制造。

公开(公告)号：US20070206672A1

公开(公告)日：2007-09-06

申请号：US11547289

申请日：2005-03-29

申请人： Shinichi Yamashita ,  Masuharu Endo ,  Kozo Akiyoshi ,  Nobuo Akiyoshi

发明人： Shinichi Yamashita ,  Masuharu Endo ,  Kozo Akiyoshi ,  Nobuo Akiyoshi

IPC分类号： H04N11/02

CPC分类号： H04N19/577 ,  H04N19/44 ,  H04N19/537 ,  H04N19/60

摘要： When a moving picture is encoded with a high compression ratio by the MPEG, the block noise becomes remarkable. Matching is calculated between the first and the second key frame and corresponding point information is generated. According to this corresponding point information, a virtual second key frame is generated. A difference between the actual second key frame and the virtual second key frame is compressed/encoded by a difference encoder. The first key frame, the corresponding point information, and the compressed/encoded difference are outputted as encoded data between the first and second key frame.

摘要翻译： 当通过MPEG以高压缩率编码运动图像时，块噪声变得显着。 在第一和第二关键帧之间计算匹配，并生成对应的点信息。 根据该对应点信息，生成虚拟第二关键帧。 实际的第二关键帧和虚拟第二关键帧之间的差异由差分编码器进行压缩/编码。 第一关键帧，对应点信息和压缩/编码差值作为第一和第二关键帧之间的编码数据输出。

公开(公告)号：US07114039B2

公开(公告)日：2006-09-26

申请号：US09960797

申请日：2001-09-25

申请人： Shinichi Yamashita ,  Kazuhiko Haruma

发明人： Shinichi Yamashita ,  Kazuhiko Haruma

IPC分类号： G06F13/00 ,  G06F15/00

CPC分类号： H04N19/436 ,  H04N19/42 ,  H04N19/423 ,  H04N19/61 ,  H04N21/426 ,  H04N21/42607 ,  H04N21/42692 ,  H04N21/4435

摘要： A signal processor comprises a plurality of processing circuits for carrying out various kinds of processing which differ from one another; a memory circuit provided commonly for respective processing circuits, and a control circuit for carrying out access control between the respective processing circuits and the memory circuit, characterized in that the control circuit carries out address control in different units in accordance with the respective processing circuits.

公开(公告)号：US20060092790A1

公开(公告)日：2006-05-04

申请号：US11262026

申请日：2005-10-27

申请人： Yasuyuki Tanaka ,  Shinichi Yamashita

发明人： Yasuyuki Tanaka ,  Shinichi Yamashita

IPC分类号： G11B7/0045

CPC分类号： G11B7/0045 ,  G11B7/0053

摘要： A reproducing apparatus includes a reading unit configured to generate a reproduced signal containing information data recorded in a track using a reflected light of an optical beam, a clock generation unit configured to generate a clock having a frequency associated with a wobbling cycle of the track, and a control unit configured to detect a phase difference between the reproduced signal and the clock, and to control the clock generation unit using the phase difference detection result.

公开(公告)号：US06055357A

公开(公告)日：2000-04-25

申请号：US347848

申请日：1994-12-01

申请人： Kenichi Nagasawa ,  Akio Aoki ,  Motokazu Kashida ,  Shinichi Yamashita ,  Makoto Shimokoriyama ,  Toshihiro Yagisawa

发明人： Kenichi Nagasawa ,  Akio Aoki ,  Motokazu Kashida ,  Shinichi Yamashita ,  Makoto Shimokoriyama ,  Toshihiro Yagisawa

IPC分类号： H04N5/7826 ,  H04N5/783 ,  H04N5/92 ,  H04N9/79 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82 ,  H04N9/888 ,  H04N9/896 ,  H04N21/2368 ,  H04N21/433 ,  H04N5/928

CPC分类号： H04N9/896 ,  H04N21/2368 ,  H04N21/4334 ,  H04N9/8045 ,  H04N9/8066 ,  H04N5/78266 ,  H04N5/783 ,  H04N9/8244 ,  H04N9/888

摘要： A signal recording apparatus, for recording a TV signal in which an audio signal such as a MUSE signal and a video signal are multiplexed in a time sharing manner in units of a given period of time, is arranged to code these video and audio signals alike, to dispersively allocate a discretely separated audio signal within the video signal, and to provide symbols other than the symbols the audio and video signals within each of synchronizing block for the purpose of permitting the use of other video signal recording apparatuses. The arrangement permits simplification and high-quality of the apparatus for recording the signals of this kind and thus contributes to the popularization of the apparatus.

摘要翻译： 用于记录其中音频信号如MUSE信号和视频信号以给定时间单位的时间共享方式多路复用的TV信号的信号记录装置被布置为对这些视频和音频信号进行编码 为了在视频信号内分散地分配离散分离的音频信号，并且为了允许使用其他视频信号记录装置，为了在同步块的每一个内提供音频和视频信号之外的符号以外的符号。 该装置允许用于记录这种信号的装置的简化和高质量，从而有助于该装置的普及。