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31. 发明授权

US06904009B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US06904009B2
公开(公告)日：2005-06-07
申请号：US10226500
申请日：2002-08-22
申请人： Akira Mashimo , Toshihiro Ogawa
发明人： Akira Mashimo , Toshihiro Ogawa
IPC分类号： G11B7/0045 , G11B19/28 , G11B7/00
CPC分类号： G11B7/126 , G11B7/0045
摘要： An optical disk apparatus that records data on an optical disk whose linear velocity is not constant. The optical disk apparatus includes an optical pickup that irradiates a laser beam of a recording power on the optical disk, converts light reflected from the optical disk into an electric signal; a detector that detects a level of the reflected light signal; and a controller that controls a recording power such that the reflected light signal level matches a target value set according to the linear velocity. When adjusting the recording power such that the reflected light level matches the target value, the target value is not set to a constant level, but set in accordance with the linear velocity. Target values at different linear velocities differ and, with this configuration, an appropriate target value is set and an appropriate recording power corresponding to the linear velocity is obtained.
摘要翻译：在线速度不恒定的光盘上记录数据的光盘装置。光盘装置包括：将记录功率的激光束照射在光盘上的光学拾取器，将从光盘反射的光转换为电信号; 检测反射光信号的电平的检测器; 以及控制器，其控制记录功率，使得反射光信号电平与根据线速度设定的目标值相匹配。当调整记录功率使得反射光水平与目标值匹配时，目标值不被设置为恒定水平，而是根据线速度设定。不同线速度的目标值不同，并且通过该配置，设定适当的目标值，并且获得对应于线速度的合适的记录功率。

32. 发明申请

US20050105423A1 Optical disk and optical disk drive 失效
标题翻译：光盘和光盘驱动器
公开(公告)号：US20050105423A1
公开(公告)日：2005-05-19
申请号：US10991918
申请日：2004-11-17
申请人： Akira Mashimo , Yutaka Yamanaka
发明人： Akira Mashimo , Yutaka Yamanaka
IPC分类号： G11B7/0045 , G11B7/007 , G11B7/125 , G11B20/10 , G11B20/14 , G11B27/30 , G11B5/09
CPC分类号： G11B27/3027 , G11B20/10 , G11B20/1426 , G11B2020/1457 , G11B2220/2562 , G11B2220/2579
摘要： An optical disk apparatus for suppressing a DSV and performing R-OPC. An encoding/decoding circuit inserts a synchronization information item to a head of only one synchronous frame when data are recorded on an optical disk. First, the encoding/decoding circuit inserts a synchronization information item having a polarity of either a mark or a space on the basis of a DSV. When the polarity of the first synchronization information item is a mark, the polarity of a next synchronization information item is set to a space. When the polarity of the first synchronization information is a space, the polarity of the next synchronization information is set to a mark. A system controller executes R-OPC at a timing when the synchronization information having the polarity of a mark is recorded on the optical disk.
摘要翻译：一种用于抑制DSV并执行R-OPC的光盘装置。当数据被记录在光盘上时，编码/解码电路将同步信息项插入仅一个同步帧的头。首先，编码/解码电路基于DSV插入具有标记或空格的极性的同步信息项。当第一同步信息项的极性是标记时，下一个同步信息项的极性被设置为空间。当第一同步信息的极性是空格时，下一个同步信息的极性被设置为一个标记。在具有标记极性的同步信息被记录在光盘上的定时，系统控制器执行R-OPC。

33. 发明授权

US06876707B2 Signal processing circuit and signal processing method 失效
标题翻译：信号处理电路及信号处理方法
公开(公告)号：US06876707B2
公开(公告)日：2005-04-05
申请号：US09740666
申请日：2000-12-19
申请人： Akira Mashimo , Keishi Ueno
发明人： Akira Mashimo , Keishi Ueno
IPC分类号： G06F1/06 , G11B20/14 , H03D3/00 , H03D3/04 , H04L25/34
CPC分类号： H03D3/04
摘要： A signal processing circuit generating a digital signal based on an input pulse signal is provided, which circuit includes a clock pulse output circuit which outputs clock pulses having one of positive and negative polarities for a period which includes a pulse of the input pulse signal, a counter circuit which counts the clock pulses, and an output circuit which outputs the digital signal based on a counted value of the counter circuit.
摘要翻译：提供了基于输入脉冲信号产生数字信号的信号处理电路，该电路包括时钟脉冲输出电路，时钟脉冲输出电路在包括输入脉冲信号的脉冲的周期内输出具有正极性和负极性之一的时钟脉冲，计数时钟脉冲的计数器电路，以及基于计数器电路的计数值输出数字信号的输出电路。

34. 发明授权

US5535183A Optical disk reproducing device and its seek operation method 失效
标题翻译：光盘再现装置及其寻道操作方法
公开(公告)号：US5535183A
公开(公告)日：1996-07-09
申请号：US346002
申请日：1994-11-29
申请人： Tohru Miura , Mitsumasa Kubo , Akira Mashimo
发明人： Tohru Miura , Mitsumasa Kubo , Akira Mashimo
IPC分类号： G11B7/085 , G11B19/20 , G11B19/24 , G11B19/28 , G11B20/14 , G11B21/08 , G11B27/10 , G11B7/00
CPC分类号： G11B19/20 , G11B19/24 , G11B20/1403 , G11B27/105 , G11B7/08529 , G11B2020/10916 , G11B2220/213 , G11B2220/2545
摘要： An optical disk device generating reproduced data based on a reproduced digital signal which is derived by tracking a track on an optical disk with an optical pickup is shown. A bit-frequency-information generation unit measures a bit frequency of the reproduced digital signal after transition of the optical pickup in a seek operation, and generates measured-bit-frequency information which indicates a measured bit frequency measured thereby. In a bit-frequency setting unit, if there is a difference between the measured bit frequency and a specified bit frequency, the measured-bit-frequency information is corrected so as to adjust the bit frequency of the reproduced digital signal to the specified bit frequency by a given amount of correction, and is produced as setting-bit-frequency information. And a PLL circuit generates a synchronization clock which is phase synchronized to the reproduced digital signal and is used for generation of the reproduced data by means of setting the bit frequency indicated by the setting-bit-frequency information to a free-run frequency of the PLL circuit.
摘要翻译：示出了基于通过用光学拾取器跟踪光盘上的轨道导出的再现数字信号来生成再现数据的光盘装置。比特频率信息生成单元在搜索操作中测量光学拾取器的转换之后的再现的数字信号的比特频率，并且生成指示由此测量的测量的比特频率的测量比特频率信息。在位频设置单元中，如果测量的比特频率和指定比特频率之间存在差异，则校正测量比特频率信息，以便将再现的数字信号的比特频率调整到指定的比特频率通过给定量的校正，并且被产生为设置位频率信息。并且PLL电路产生与再现的数字信号相位同步的同步时钟，并且通过将由设置位频率信息指示的位频率设置为自由运行频率而用于生成再现数据 PLL电路。

35. 发明授权

US5311107A Method and apparatus for stopping DC motor by brake power corresponding to rotation frequency of motor and disk storage unit having such apparatus 失效
标题翻译：通过与具有这种装置的电机和盘存储单元的旋转频率对应的制动功率来停止直流电动机的方法和装置
公开(公告)号：US5311107A
公开(公告)日：1994-05-10
申请号：US63124
申请日：1993-05-14
申请人： Hiroo Shimegi , Akira Mashimo , Hiroyuki Onda , Katsuya Enami , Hiroshi Takahashi
发明人： Hiroo Shimegi , Akira Mashimo , Hiroyuki Onda , Katsuya Enami , Hiroshi Takahashi
IPC分类号： G11B19/20 , G11B19/22 , H02P6/24 , H02P3/00
CPC分类号： G11B19/22 , G11B19/20 , H02P6/24
摘要： A motor stopping apparatus detects a rotation frequency of a motor to which a load is attached, and applies break power in accordance with the rotation frequency to the motor until the motor is approximately stopped. The apparatus may be provided in a disk storage.
摘要翻译：电动机停止装置检测负载所附载的电动机的旋转频率，并根据转动频率向电动机施加断开电力，直到电动机近似停止。该设备可以设置在盘存储器中。

36. 发明授权

US5177727A Rotary recording medium having a guide track and recording and reproducing apparatus therefor 失效
标题翻译：具有导轨跟踪和记录的旋转记录介质及其再现装置
公开(公告)号：US5177727A
公开(公告)日：1993-01-05
申请号：US514423
申请日：1990-04-25
申请人： Akira Mashimo
发明人： Akira Mashimo
IPC分类号： G11B7/007 , G11B7/09 , G11B7/125 , G11B7/14 , G11B7/24 , G11B7/00 , G11B3/70
CPC分类号： G11B7/125 , G11B7/0901 , G11B7/14 , G11B7/24082
摘要： An optical disk includes a recording surface and a guide track which is a groove formed on the recording surface, and the edge lines of the groove has a wave shape that changes cyclically in a direction of a radius. An optical disk apparatus includes a first laser, a second laser, a first and second optical sensors which detect the reflected beams obtained by reflecting the light beams from the first and second lasers on the recording surface. The optical disk also includes first and second signal extraction circuits extracting signals having a frequency component corresponding to the wave shape of the edge line of the groove from the detection signals from the first and second optical sensors, a tracking controller controlling positions in a direction of the radius of the first and second lasers on the basis of the signals from the first and second extraction circuits, and a recording and reproducing unit for recording and reproducing on and from the optical disk.
摘要翻译：光盘包括记录表面和作为形成在记录表面上的凹槽的导轨，并且凹槽的边缘线具有在半径方向上周期性地变化的波形。光盘装置包括第一激光器，第二激光器，第一和第二光学传感器，其检测通过反射来自记录表面上的第一和第二激光器的光束而获得的反射光束。光盘还包括第一和第二信号提取电路，从第一和第二光学传感器的检测信号中提取具有与沟槽边缘线的波形相对应的频率分量的信号，跟踪控制器控制方向上的位置基于来自第一和第二提取电路的信号的第一和第二激光器的半径，以及用于在光盘上记录和再现光盘的记录和再现单元。

37. 发明授权

US5132957A Information signal recording and reproducing system capable of recording an information signal on a medium having a limited recording band width 失效
标题翻译：信息信号记录和再现系统能够在具有有限的记录带宽的介质上记录信息信号
公开(公告)号：US5132957A
公开(公告)日：1992-07-21
申请号：US426789
申请日：1989-10-25
申请人： Akira Mashimo
发明人： Akira Mashimo
IPC分类号： G11B7/004 , G11B20/06 , G11B20/08 , H04N5/92 , H04N5/95
CPC分类号： G11B7/004 , G11B20/06 , G11B20/08 , H04N5/92 , H04N5/95
摘要： An information signal recording and reproducing system for recording and reproducing an information signal on and from a recording medium comprises a modulation circuit for modulating the information signal to form a modulated signal involving a number of pulses, a first frequency divider triggered responsive to a leading edge of the pulses in the modulated signal to produce a first frequency-divided signal having a frequency substantially lower than that of the modulated signal, a second frequency divider triggered responsive to a trailing edge of the pulses in the modulated signal to produce a second frequency-divided signal having a frequency substantially lower than that of the modulated signal, a recording device for recording the first and second frequency-divided signals on the recording medium, a reproducing device for detecting the first and second frequency-divided signals recorded on the recording medium to produce a first reproduced frequency-divided signal and a second reproduced frequency-divided signal, a synthesizing circuit supplied with the first and second reproduced frequency-divided signals to produce a synthetic modulated signal corresponding to the modulated signal by performing an exclusive-or operation of the first and second frequency-divided signals, and a demodulating circuit supplied with the synthetic modulated signal to produce a reproduced information signal.
摘要翻译：一种用于在记录介质上记录和再现信息信号的信息信号记录和再现系统包括调制电路，用于调制信息信号以形成涉及多个脉冲的调制信号，响应于前沿触发的第一分频器的调制信号中的脉冲以产生具有基本上低于调制信号频率的频率的第一分频信号，第二分频器响应于调制信号中的脉冲的后沿而触发，以产生第二频分复用信号，具有基本上低于调制信号的频率的分频信号，用于在记录介质上记录第一和第二分频信号的记录装置，用于检测记录在记录介质上的第一和第二分频信号的再现装置以产生第一再现分频信号和第二代表合成电路，其被提供有第一和第二再现分频信号，以通过执行第一和第二分频信号的异或运算来产生与调制信号相对应的合成调制信号，以及解调电路提供合成调制信号以产生再现的信息信号。

38. 发明授权

US5124675A LC-type dielectric filter 失效
标题翻译： LC型介质滤波器
公开(公告)号：US5124675A
公开(公告)日：1992-06-23
申请号：US584176
申请日：1990-09-18
申请人： Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Ichiro Iwase , Akira Mashimo
发明人： Tomokazu Komazaki , Katsuhiko Gunji , Norio Onishi , Ichiro Iwase , Akira Mashimo
IPC分类号： H01P1/205
CPC分类号： H01P1/2056
摘要： An LC-type dielectric filter which includes strip lines on a dielectric plate forming distributed constant type resonators. The strip lines and other elements of the filter, such as coupling capacitances are plated onto the dielectric plate as printed circuits to realize a small, high-Q dielectric filter which is suitable for mass-production.
摘要翻译：一种LC型介质滤波器，其在形成分布常数型谐振器的电介质板上包括带状线。将滤波器的带状线和其它元件（例如耦合电容）作为印刷电路电镀在电介质板上，以实现适合于批量生产的小型高Q介质滤波器。

39. 发明授权

US4813034A Optical disc recording apparatus with a light beam having a controllable quantity 失效
标题翻译：具有可控量光束的光盘记录装置
公开(公告)号：US4813034A
公开(公告)日：1989-03-14
申请号：US035760
申请日：1987-04-08
申请人： Akira Mashimo
发明人： Akira Mashimo
IPC分类号： G11B7/125 , G11B7/00 , H01S3/13
CPC分类号： G11B7/126
摘要： An optical disc recording apparatus comprises a light generating source for generating a recording light beam, an open loop circuit for controlling an amplitude of an angular modulated information signal responsive to a power setting signal indicative of a radial position of the recording light beam on the optical disc, a detector circuit for detecting a quantity of light of the recording light beam and for producing a D.C. signal within an output detection signal which is obtained by subjecting the detected quantity of light to a photoelectric conversion, a control circuit for variably controlling a level of the D.C. signal from the detecting circuit depending on the radial position of the recording light beam on the optical disc and according to a preset characteristic, and an adder for adding an output D.C. signal level of the control circuit and an output signal of the open loop circuit and for supplying an added signal to the light generating source so as to control a quantity of light of the recording light beam generated thereby. The D.C. signal from the detecting circuit is controlled by a closed loop circuit comprising the detecting circuit, the control circuit and the adder.
摘要翻译：光盘记录装置包括用于产生记录光束的光产生源，用于响应于指示记录光束在光学上的径向位置的功率设置信号来控制角度调制信息信号的幅度的开环电路光盘，检测电路，用于检测记录光束的光量，并产生通过使检测到的光量进行光电转换而获得的输出检测信号内的直流信号，用于可变地控制电平的控制电路根据记录光束在光盘上的径向位置和根据预置特性的来自检测电路的DC信号，以及用于将控制电路的输出DC信号电平和开路的输出信号相加的加法器并且用于向光产生源提供附加的信号以便控制数量由此产生的记录光束的光。来自检测电路的直流信号由包括检测电路，控制电路和加法器的闭环电路控制。

40. 发明授权

US4796097A Optical disc recording apparatus for a color television signal 失效
标题翻译：用于彩色电视信号的光盘记录装置
公开(公告)号：US4796097A
公开(公告)日：1989-01-03
申请号：US68016
申请日：1987-06-26
申请人： Akira Mashimo
发明人： Akira Mashimo
IPC分类号： G11B7/00 , G11B7/0045 , H04N5/85 , H04N5/91 , H04N9/83 , H04N9/85 , H04N9/80
CPC分类号： H04N9/83 , H04N5/85
摘要： An optical disc recording apparatus comprises a multiplexing circuit for frequency-division-multiplexing an FM luminance signal and the frequency converted carrier chrominance signal with a variable frequency-division-multiplexing ratio so that a frequency-division-multiplexing ratio of the frequency converted carrier chrominance signal with respect to the FM luminance signal becomes greater approximately proportionally to a relative linear velocity between an optical disc which rotates at the constant angular velocity and a laser beam which scans the optical disc, a limiter for converting an output frequency division multiplexed signal of the multiplexing circuit into a square wave having a constant amplitude, an amplitude varying circuit for varying an amplitude of the output square wave of the limiter approximately proportionally to the relative linear velocity, and a recording circuit including a laser light source for generating the laser beam responsive to an output signal of the amplitude varying circuit.
摘要翻译：一种光盘记录装置，包括用于对FM亮度信号进行频分复用的多路复用电路和具有可变频分复用率的频率转换载波色度信号，使得频率转换载波色度的频分复用比相对于FM亮度信号的信号与以恒定角速度旋转的光盘与扫描光盘的激光束之间的相对线速度近似成比例地变大，限幅器用于将输出频分复用信号多路复用电路成为具有恒定振幅的方波;幅度变化电路，用于大致与所述相对线速度成比例地改变所述限幅器的输出方波的振幅;以及记录电路，包括用于产生所述激光束的激光光束到该输出信号振幅变化电路。

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