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1. 发明授权

US4234898A Digital magnetic recording and reproducing apparatus 失效
标题翻译：数字磁记录和再现装置
公开(公告)号：US4234898A
公开(公告)日：1980-11-18
申请号：US19592
申请日：1979-03-12
申请人： Shozo Nakagawa , Katsuya Yokoyama , Hironobu Katayama
发明人： Shozo Nakagawa , Katsuya Yokoyama , Hironobu Katayama
IPC分类号： G11B20/10 , G11B5/09
CPC分类号： G11B20/10
摘要： In a digital magnetic recording and reproducing apparatus, a digital code signal to be recorded is given a code conversion by means of modulo-2-adding another digital signal thereto to prevent a continuation of the same binary signal levels for a prolonged period. The signal level of the reproduced digital code signal is corrected by level comparison with a threshold level provided by applying the above reproduced digital code signal to a compensator and peak rectifiers, which have the same time-constant, and then the reproduced digital code signal is given another code conversion by means of modulo-2-adding still another digital signal provided for restoring the code conversion, so that it is possible to reproduce the original digital code signal faithfully.
摘要翻译：在数字磁记录和重放装置中，通过对其加上另一个数字信号的模2加上待记录的数字码信号，以防止长时间持续相同的二进制信号电平。通过与通过将上述再现的数字码信号应用于具有相同时间常数的补偿器和峰值整流器提供的阈值电平的电平比较来校正再现的数字码信号的信号电平，然后再现的数字码信号为给予另一个代码转换，通过模2加入提供用于恢复代码转换的另一个数字信号，使得可以忠实地再现原始数字代码信号。

2. 发明授权

US4875610A Method of and system for driving magnetic tape 失效
标题翻译：驱动磁带的方法和系统
公开(公告)号：US4875610A
公开(公告)日：1989-10-24
申请号：US196522
申请日：1988-05-20
申请人： Tatsuji Kitamoto , Katsuya Yokoyama , Takuji Sekiguchi
发明人： Tatsuji Kitamoto , Katsuya Yokoyama , Takuji Sekiguchi
IPC分类号： G11B15/26 , G11B15/40 , G11B15/60 , G11B15/61
CPC分类号： G11B15/60 , G11B15/26 , G11B15/40 , G11B15/61
摘要： A unidirectional traveling-surface-wave by ultrasonic oscillation is generated on a surface of an oscillator, and a magnetic tape is run in the direction opposite to the traveling direction of the surface wave by pressing the surface of the oscillator against a surface of the magnetic tape.

3. 发明授权

US4839744A Video signal recording method and associated recording/reproducing apparatus 失效
标题翻译：视频信号记录方法和相关联的记录/再现装置
公开(公告)号：US4839744A
公开(公告)日：1989-06-13
申请号：US90441
申请日：1987-08-28
申请人： Seishi Sasaki , Shigeru Awamoto , Tatsushi Bannai , Katsuya Yokoyama , Hiromichi Shibaya
发明人： Seishi Sasaki , Shigeru Awamoto , Tatsushi Bannai , Katsuya Yokoyama , Hiromichi Shibaya
IPC分类号： H04N9/797
CPC分类号： H04N9/7973
摘要： Disclosed is a video signal recording system, in which the input video signal is rid of unneeded portions, transformed on the time axis and divided into n channels so that they are recorded in a bandwidth narrower than 1/n of original one. The system also enhances the latitude in choosing a clock frequency for time-axis conversion and a track width, thereby optimizing the picture quality and recording time length on a trade-off basis.
摘要翻译：公开了一种视频信号记录系统，其中输入视频信号消除不需要的部分，在时间轴上变换并被划分为n个信道，使得它们以比原始信号的1 / n窄的带宽被记录。该系统还增加了选择时间轴转换的时钟频率和轨道宽度的自由度，从而在折衷的基础上优化图像质量和记录时间长度。

4. 发明授权

US5837332A Method and apparatus for preparing crystal thin films by using a surface acoustic wave 失效
标题翻译：通过使用表面声波制备晶体薄膜的方法和装置
公开(公告)号：US5837332A
公开(公告)日：1998-11-17
申请号：US690030
申请日：1996-07-31
申请人： Migaku Takahashi , Katsuya Yokoyama , Jun Yamada , Takashi Shiba
发明人： Migaku Takahashi , Katsuya Yokoyama , Jun Yamada , Takashi Shiba
IPC分类号： C23C14/22 , C23C16/44 , G11B5/012 , G11B5/31 , G11B5/84 , G11B5/85 , G11B5/851 , H01F41/30 , H01L39/24 , B06B1/00 , H03H9/00
CPC分类号： B82Y25/00 , B82Y40/00 , C23C14/22 , C23C16/4415 , G11B5/012 , G11B5/3163 , G11B5/8404 , G11B5/85 , G11B5/851 , H01F41/302 , H01L39/2496
摘要： A method and apparatus for preparing thin films, a device, an electronic and magnetic apparatus, an information recording and reproducing apparatus, an information processing apparatus and a crystal preparing method from the molten state. A thin film is prepared as the substrate or the surface of the substrate is being excited and characterized by a device having at least a substrate and a thin film with at least one layer prepared thereon and an electronic and magnetic apparatus having integration of the devices, wherein at least one layer of the thin film is prepared as the surface of the substrate is being excited. The recording and reproducing apparatus for recording and reproducing information is composed of an information memory medium device having a recording layer of the thin film prepared as the surface of the substrate is being excited and a recording head whose core is prepared as the surface of the substrate is being excited. An information processing apparatus for use in input, record, process and output of information is composed of an information memory medium device having a recording layer which is prepared as the surface of the substrate is being excited and a processing part having a semiconductor device with a thin film prepared as the surface of the substrate is being excited.
摘要翻译：一种从熔融状态制备薄膜的方法和装置，装置，电子和磁性装置，信息记录和再现装置，信息处理装置和晶体制备方法。制备薄膜作为衬底或者衬底的表面被激发并且通过具有至少一个衬底的薄膜和其上制备有至少一层的薄膜和具有这些器件集成的电子和磁性设备被激发并表征，其中当衬底的表面被激发时，制备至少一层薄膜。用于记录和再现信息的记录和再现装置由一个信息存储介质装置组成，该信息存储介质装置具有被激励的衬底表面所制备的薄膜的记录层，以及一个记录头，其芯准备为衬底的表面正在兴奋用于信息的输入，记录，处理和输出的信息处理装置由具有记录层的信息存储介质装置组成，该记录层是在被激励的基板的表面上准备的，并且具有半导体装置的处理部分具有作为衬底表面制备的薄膜正在被激发。

5. 发明授权

US4809118A PCM helical-scan magnetic record/playback systems 失效
标题翻译： PCM螺旋扫描磁记录/播放系统
公开(公告)号：US4809118A
公开(公告)日：1989-02-28
申请号：US854693
申请日：1986-04-22
申请人： Shozo Nakagawa , Katsuya Yokoyama , Hironobu Katayama
发明人： Shozo Nakagawa , Katsuya Yokoyama , Hironobu Katayama
IPC分类号： G11B5/008 , G11B5/09 , G11B5/53 , G11B15/14 , G11B20/18 , H04N5/7826 , H04N5/783 , H04N5/926 , H04N9/89 , H04N5/78
CPC分类号： H04N5/9268 , G11B15/14 , G11B20/1813 , G11B5/534 , H04N5/7826 , H04N5/783 , H04N9/89
摘要： In a helical-scan magnetic record/playback system, n magnetic heads (where n is an integer greater than one) are disposed close to the outer wall of a head drum, spaced from one another by 2.pi./n radians with respect to the rotational axis of the head drum and also spaced from one another by approximately 1/n of the width of a magnetic tape in the axial direction of the head drum. The magnetic tape is wound around the head drum over an angle of 2.pi./n radians or more with respect to the rotational axis of the drum. With the rotation of the head drum, a video signal is time-sequentially divided for recording on n tracks of the tape and for reproduction therefrom. The invention results in reduced friction between the tape and the drum, thereby providing smooth travel and easy loading of the tape. According to this invention, a still or slow-motion picture can be reproduced without an external memory and the reciprocal travel of the tape.
摘要翻译：在螺旋扫描磁记录/重放系统中，n个磁头（其中n是大于1的整数）设置在磁头鼓的外壁附近，相对于磁头鼓彼此间隔开2像素/ n弧度磁头鼓的旋转轴线，并且彼此间隔开大约磁头在磁头鼓的轴向上的宽度的1 / n。磁带以相对于滚筒的旋转轴线为2pi / n弧度或更大的角度缠绕在磁头鼓上。随着磁头鼓的旋转，视频信号被时间顺序地划分，用于在磁带的n个磁迹上记录并再现。本发明导致带和滚筒之间的摩擦减小，从而提供平滑的行进和容易的带状装载。根据本发明，可以在没有外部存储器和磁带的往复行进的情况下再现静止或慢动作图像。

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