公开(公告)号：US5590111A

公开(公告)日：1996-12-31

申请号：US91003

申请日：1993-07-13

申请人： Fumiyoshi Kirino ,  Takeshi Maeda ,  Hiroshi Ide ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Tsuyoshi Toda

发明人： Fumiyoshi Kirino ,  Takeshi Maeda ,  Hiroshi Ide ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu ,  Tsuyoshi Toda

IPC分类号： G11B7/0045 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B7/00 ,  G11B3/90 ,  G11B5/09

CPC分类号： G11B7/126 ,  G11B11/1053 ,  G11B11/10595 ,  G11B20/10009 ,  G11B20/10212 ,  G11B20/1816 ,  G11B7/0045 ,  G11B7/1267 ,  G11B11/10506 ,  G11B11/10508 ,  G11B20/1258 ,  G11B7/24085

摘要： In a write control method on an optical recording, at least one shift amount selected from the defocus amount of a laser beam on a recording medium, the shift amount of a recording position on a recording track and the shift amount of laser power during recording is controlled such that the selected amount falls within a predetermined range. Subsequently, a trial signal is trially recorded at a plurality of trial zones on the recording medium by using a laser power value as a parameter. The recorded trial signal is read and a difference .DELTA.V between center levels of a highest density waveform and a lowest density waveform is detected. In connection with each trial zone, the laser power value when a reading trial signal which makes the difference .DELTA.V minimum is recorded is defined as an optimum recording power value. Regular data is recorded at a predetermined storage area on the recording medium by using an optimum laser power value determined in connection with a trial zone closest to the predetermined storage area.

摘要翻译： 在光学记录中的写入控制方法中，从记录介质上的激光束的散焦量，记录轨道上的记录位置的偏移量和记录期间的激光功率的移动量选择的至少一个偏移量是 被控制使得所选择的量落在预定范围内。 随后，通过使用激光功率值作为参数，在记录介质上的多个试验区上试用信号。 读取记录的试验信号，并检测最高密度波形的中心水平和最低密度波形之间的差ΔTA。 结合每个试验区域，当记录使DELTA V最小值的读取试验信号被记录时的激光功率值被定义为最佳记录功率值。 通过使用与最接近预定存储区域的试验区域确定的最佳激光功率值，将正常数据记录在记录介质上的预定存储区域。

公开(公告)号：US5457666A

公开(公告)日：1995-10-10

申请号：US114062

申请日：1993-08-31

申请人： Tsuyoshi Toda ,  Hiroshi Ide ,  Fumiyoshi Kirino ,  Takeshi Maeda ,  Hiroyuki Tsuchinaga ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu

发明人： Tsuyoshi Toda ,  Hiroshi Ide ,  Fumiyoshi Kirino ,  Takeshi Maeda ,  Hiroyuki Tsuchinaga ,  Toshimitsu Kaku ,  Seiichi Mita ,  Kazuo Shigematsu

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/006 ,  G11B7/125 ,  G11B11/10 ,  G11B11/105 ,  G11B7/24

CPC分类号： G11B7/126 ,  G11B11/10506 ,  G11B11/1053 ,  G11B7/0045 ,  G11B7/006

摘要： A magneto-optical disk recording control method using the mark length recording method wherein the marks and gap regions between marks are recorded on the surface of the disk by maintaining a constant temperature distribution during the recording. The laser is driven to a non-recording level in gap regions between marks that exceed a base recording level used for reproduction of the marks. When a mark is recorded, the laser power is increased to a recording power level and after the mark has been recorded, the laser power level is reduced to the base power level, followed by being raised to the gap recording level. Control of the laser is performed by superposing a plurality of pulse trains that are synchronized with respect to a clock having a cycle T. The pulse trains are derived from the code train to be recorded and have pulses with a duration that is an integral multiple of (1/2)T. If the pulse width of the recording code train exceeds 2T, then the laser is controlled to reach a first power level in accordance with pulses of a first pulse train, be reduced to the gap recording level and then raised to a second power level in accordance with a second recording pulse train to maintain the temperature distribution constant during the recording of the mark. For the recording of longer marks, the laser is controlled to vary between the second power level and the gap recording level.

摘要翻译： 一种使用标记长度记录方法的磁光盘记录控制方法，其中通过在记录期间保持恒定的温度分布将标记之间的标记和间隙区域记录在盘的表面上。 在超过用于再现标记的基本记录水平的标记之间的间隙区域中激光被驱动到非记录水平。 当记录标记时，激光功率增加到记录功率水平，并且在记录标记之后，激光功率水平降低到基本功率水平，然后升高到间隙记录水平。 通过叠加相对于具有周期T的时钟同步的多个脉冲串来执行激光的控制。脉冲序列是从要被记录的代码序列导出的，具有持续时间为整数倍的脉冲 （1/2）T。 如果记录代码串的脉冲宽度超过2T，则根据第一脉冲序列的脉冲将激光器控制到达到第一功率电平，减小到间隙记录电平，然后依次升高到第二功率电平 具有第二记录脉冲串，以在记录记录期间保持温度分布恒定。 为了记录更长的标记，激光器被控制在第二功率电平和间隙记录电平之间变化。

公开(公告)号：US5412632A

公开(公告)日：1995-05-02

申请号：US28224

申请日：1993-03-09

申请人： Seiichi Mita ,  Toru Kawashima ,  Toshimitsu Kaku

发明人： Seiichi Mita ,  Toru Kawashima ,  Toshimitsu Kaku

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B11/10 ,  G11B11/105 ,  G11B20/10

CPC分类号： G11B11/10597 ,  G11B20/10009

摘要： A signal reproducing system discriminates signals stably in the case of reproducing a signal from an optical recording medium which has coexistent recording areas with the signals recorded in different recording forms therein. Parts that constitute a reproduced signal are respectively derived by corresponding signal detectors from the optical recording medium in which a preformat area and a data area are included as the coexistent recording areas. The average potentials of VFO parts, which are respectively contained in the reproduced signal parts, are detected on the basis of the envelopes of the signal parts by a peak detecting circuit and a bottom detecting circuit. The detected average potentials are compared with a reference voltage, and the resulting difference potentials are added to the reproduced signal by an adder to bring the average potentials of the VFO parts into agreement. Further, an unwanted part of the output signal of the adder corresponding thereto is replaced by a switch with the output signal of a signal generator, which has an average potential equal to the average potential of the VFO parts brought into agreement.

摘要翻译： 信号再现系统在再现来自具有记录在不同记录形式的信号的具有共存记录区域的光记录介质的信号的情况下，稳定地鉴别信号。 构成再现信号的部件分别由来自其中包括预格式区域和数据区域的光记录介质的相应信号检测器导出为共存记录区域。 基于由峰值检测电路和底部检测电路的信号部分的包络来检测分别包含在再现信号部分中的VFO部分的平均电位。 将检测到的平均电位与参考电压进行比较，并通过加法器将所得差分电位加到再现信号上，使VFO部分的平均电位一致。 此外，与其对应的加法器的输出信号的不希望的部分由具有信号发生器的输出信号的开关代替，该信号发生器具有等于VFO部分的平均电位的平均电位。

公开(公告)号：US5090005A

公开(公告)日：1992-02-18

申请号：US428937

申请日：1989-10-30

申请人： Fumio Hara ,  Seiichi Mita ,  Morishi Izumita ,  Hiroyuki Tsuchinaga

发明人： Fumio Hara ,  Seiichi Mita ,  Morishi Izumita ,  Hiroyuki Tsuchinaga

IPC分类号： G11B7/00 ,  G11B7/003 ,  G11B7/0055 ,  G11B7/09

CPC分类号： G11B7/09 ,  G11B7/0031

摘要： A tape recorder of the present invention comprises a pair of feed and take-up spools for winding a tape as recording media, a rotatable drum rotated to wind and run the tape between the pair of spools over the drum surface helically, a head for recording, reproducing or erasing signals on the tape wound over said drum surface, and control means for controlling the relative positional relationship between the head and the tape wound over the drum surface based on an error signal such that said signals are stably recorded, reproduced or erased along a desired track, the control means having means for holding the error signal during the period in which the tape is discontinued over a drum surface. The value of the error signal at the time immediately before the tape disappears from the drum surface, or the value of the error signal at the time immediately after the tape reappears over the drum surface during the preceding rotation of the drum is used as the error signal to be held, thereby allowing to stably restart the positioning control when the tape reappears over the drum surface.

摘要翻译： 本发明的磁带录音机包括一对用于卷绕磁带作为记录介质的进给卷轴和卷取卷轴，旋转的滚筒旋转以在螺旋状的卷筒表面上的一对卷轴之间卷绕和运行磁带，用于记录的磁头 ，再现或擦除在所述鼓表面上缠绕的磁带上的信号;以及控制装置，用于基于误差信号控制磁头和缠绕在磁鼓表面上的磁带之间的相对位置关系，使得所述信号被稳定地记录，再现或擦除 所述控制装置具有用于在所述磁带在鼓表面上停止的时段期间保持所述误差信号的装置。 在磁带从磁鼓表面消失之前的时刻的误差信号的值，或在磁带的前一个旋转期间磁带重新出现在磁鼓表面之后的时刻的误差信号的值被用作误差 信号被保持，从而当带重新出现在滚筒表面上时，允许稳定地重新启动定位控制。

公开(公告)号：US4983965A

公开(公告)日：1991-01-08

申请号：US444845

申请日：1989-12-04

申请人： Nobukazu Doi ,  Morishi Izumita ,  Seiichi Mita ,  Yoshizumi Eto

发明人： Nobukazu Doi ,  Morishi Izumita ,  Seiichi Mita ,  Yoshizumi Eto

IPC分类号： G11B20/14 ,  H03M5/14

CPC分类号： H03M5/14

摘要： An original digital signal is converted into either a Miller-squared code signal or a Miller code signal, and undergoes serial-to-parallel conversion to produce n-phase signals (where n is desired to be a positive even number). N-phase virtual demodulated signals are simultaneously generated at clock timing having a period equivalent to 1/n times the period of the transmission clock. Out of the n-phase virtual demodulated signals, n/2 phases are selected to undergo parallel-to-serial conversion, the original digital signal being thus obtained.

摘要翻译： 原始数字信号被转换成米勒平方码信号或米勒码信号，并进行串并转换以产生n相信号（其中n希望为正偶数）。 在具有相当于传输时钟的周期的1 / n倍的周期的时钟定时处同时产生N相虚拟解调信号。 在n相虚拟解调信号中，选择n / 2相进行并行到串行转换，从而获得原始数字信号。

公开(公告)号：US4868853A

公开(公告)日：1989-09-19

申请号：US181528

申请日：1988-04-14

申请人： Morishi Izumita ,  Seiichi Mita ,  Nobukazu Doi ,  Masuo Umemoto ,  Hiroto Yamauchi ,  Shigeaki Fujino ,  Nobuo Murata

发明人： Morishi Izumita ,  Seiichi Mita ,  Nobukazu Doi ,  Masuo Umemoto ,  Hiroto Yamauchi ,  Shigeaki Fujino ,  Nobuo Murata

IPC分类号： H03M5/14

CPC分类号： H03M5/14 ,  H03M5/145

摘要： A demodulation circuit for demodulating a modulated digital including a unit for detecting a specific pattern contained in a series of data before modulation, a unit for judging the phase relation between the specific pattern and a clock pulse used for demodulation, a unit for performing a counting operation on the basis of the result of said judgment, and a unit for controlling the phase of said clock pulse for demodulation on the basis of the count.

摘要翻译： 一种用于解调调制数字的解调电路，包括用于检测包含在调制之前的一系列数据中的特定模式的单元，用于判断特定模式与用于解调的时钟脉冲之间的相位关系的单元，用于执行计数的单元 基于所述判断结果的操作，以及用于基于计数控制用于解调的所述时钟脉冲的相位的单元。

公开(公告)号：US4733313A

公开(公告)日：1988-03-22

申请号：US854512

申请日：1986-04-22

申请人： Morishi Izumita ,  Seiichi Mita ,  Nobukazu Doi ,  Shusaku Nagahara ,  Shigeyuki Ikeda

发明人： Morishi Izumita ,  Seiichi Mita ,  Nobukazu Doi ,  Shusaku Nagahara ,  Shigeyuki Ikeda

IPC分类号： H04N19/00 ,  H04N1/21 ,  H04N1/41 ,  H04N5/32 ,  H04N5/78 ,  A61B6/02

CPC分类号： H04N5/32 ,  H04N1/2175

摘要： In medical image treating systems, especially when an X-ray image intensifier and TV camera are used, video signals composed of available video signals containing specified image information and unavailable video signals containing no such image information are output from the TV camera. Only the digital video signals of the converted digital video signals corresponding to the available video signals are treated and the digital video signals after treatment are recorded and reproduced with a recording device.

摘要翻译： 在医疗图像处理系统中，特别是使用X射线图像增强器和TV摄像机时，从TV摄像机输出包含指定图像信息的可用视频信号和不包含该图像信息的不可用视频信号的视频信号。 仅处理与可用视频信号相对应的经转换的数字视频信号的数字视频信号，并且用记录装置记录和再现处理后的数字视频信号。

公开(公告)号：US4521816A

公开(公告)日：1985-06-04

申请号：US405342

申请日：1982-08-05

申请人： Akihiko Kougami ,  Seiichi Mita ,  Toru Kirino ,  Shusaku Nagahara

发明人： Akihiko Kougami ,  Seiichi Mita ,  Toru Kirino ,  Shusaku Nagahara

IPC分类号： G11B5/09 ,  G11B5/035 ,  G11B20/10 ,  G11B20/14

CPC分类号： G11B20/10194 ,  G11B20/1419 ,  G11B20/1423 ,  G11B5/035

摘要： A magnetic recording method for digital signals, and more particularly to a magnetic head driving current waveform wherein digital signals to be recorded on a magnetic tape at a high density have the waveform of the head driving current shaped in order to reduce the degradation of the waveform. That is, in a case where the period of the current reversal of the driving current is long and continues for at least 1.5 times the bit period, the amplitude of the current in the rise part of the wave is made small. The driving current of this waveform has a reduced waveform degradation, and the magnetic recording at the high density becomes possible.

摘要翻译： 一种用于数字信号的磁记录方法，更具体地说，涉及磁头驱动电流波形，其中以高密度记录在磁带上的数字信号具有形成磁头驱动电流的波形，以便减小波形的劣化 。 也就是说，在驱动电流的电流反转的周期长并且持续至少比位周期的1.5倍的情况下，波的上升部分中的电流的振幅变小。 该波形的驱动电流具有降低的波形劣化，并且可以实现高密度的磁记录。

公开(公告)号：US4246601A

公开(公告)日：1981-01-20

申请号：US10886

申请日：1979-02-09

申请人： Kazuhiro Sato ,  Shusaku Nagahara ,  Masuo Umemoto ,  Toshiyuki Akiyama ,  Morishi Izumita ,  Kenji Takahashi ,  Seiichi Mita

发明人： Kazuhiro Sato ,  Shusaku Nagahara ,  Masuo Umemoto ,  Toshiyuki Akiyama ,  Morishi Izumita ,  Kenji Takahashi ,  Seiichi Mita

IPC分类号： H01L27/146 ,  H04N9/04 ,  H04N9/07

CPC分类号： H04N9/045 ,  H01L27/14645

摘要： A solid-state color imaging device is provided including a plurality of photosensors which are arrayed in horizontal and vertical directions, and a mosaic color filter made up of filter elements arranged in correspondence with the respective photosensors. The mosaic color filter is arranged such that any group of four adjacent filter elements comprises a first filter which is made for panchromatic transmission, a second filter which is selected from among a first spectral region-transmitting filter, a second spectral region-transmitting filter and a third spectral region-transmitting filter respectively exhibiting different transmission characteristics, and third and fourth filters which are made of complementary color filters which transmit the transmission light component of the second filter and which have transmission components different from each other. The solid-state color imaging device also has means for simultaneously reading out optical signals of two of the photosensors adjacent in the vertical direction, and means for adding the two output signals.

摘要翻译： 提供一种固态彩色成像装置，其包括沿水平和垂直方向排列的多个光电传感器，以及由与各个光电传感器对应地布置的滤光器元件组成的马赛克滤色镜。 马赛克滤色器被布置成使得四个相邻滤光器元件的任何组包括用于全色透射的第一滤光器，从第一光谱区域透射滤光器，第二光谱区域透射滤光器和 分别具有不同透射特性的第三光谱区域透射滤光器和由透射第二滤光器的透射光分量并且具有彼此不同的透射分量的互补滤色器制成的第三和第四滤光器。 固体彩色成像装置还具有用于同时读出在垂直方向上相邻的两个光电传感器的光信号的装置，以及用于相加两个输出信号的装置。

公开(公告)号：US06704154B2

公开(公告)日：2004-03-09

申请号：US09986597

申请日：2001-11-09

申请人： Akihiko Hirano ,  Seiichi Mita ,  Yoshiju Watanabe

发明人： Akihiko Hirano ,  Seiichi Mita ,  Yoshiju Watanabe

IPC分类号： G11B2014

CPC分类号： G11B20/1833 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009 ,  H03M5/145 ,  H03M13/31

摘要： In a coding method which does not restrict a run length of “1” while data is recorded/reproduced, there are such a drawback that when an error correction is carried out, a total number of error data to be corrected is increased, and also errors of not-detectable data are increased. While data is coded, a continuous number of “1” contained in a code word is limited, and then an error correction is carried out inside a coding/decoding process operation. Thus, a recording/reproducing apparatus having a small number of decoding errors is available.

摘要翻译： 在数据被记录/再现时不限制游程长度为“1”的编码方法存在这样的缺点：当执行错误校正时，增加要纠正的错误数据的总数，并且还 不可检测数据的错误增加。 在对数据进行编码的同时，对码字中包含的连续数“1”进行限制，然后在编码/解码处理动作中进行纠错。 因此，具有少量解码错误的记录/再现装置是可用的。