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1. 发明授权

US4745506A Magnetic head for perpendicular magnetic recording and reproduction 失效
标题翻译：用于垂直磁记录和再现的磁头
公开(公告)号：US4745506A
公开(公告)日：1988-05-17
申请号：US89945
申请日：1987-08-26
申请人： Kazuo Nakamura , Seishi Sasaki , Ken Takahashi , Hiroshi Yohda , Nobuyuki Kaminaka
发明人： Kazuo Nakamura , Seishi Sasaki , Ken Takahashi , Hiroshi Yohda , Nobuyuki Kaminaka
IPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B5/147 , G11B5/187 , G11B5/23
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/3103
摘要： A perpendicular magnetic head of high recording and reproducing efficiency which integrally incorporates a step-up transformer. A main pole for picking up a reproduce magnetic flux from a recording medium and applying recording magnetic field thereto is formed of a magnetic thin film. A signal winding formed of a thin film is disposed in the immediate vicinity of the forward end of the main pole so as to have a high conversion sensitivity per turn with respect to the reproduce magnetic flux from the recording medium. The signal winding which itself constitutes a closed circuit interlinks a magnetic path of the step-up transformer, thereby forming a primary winding of the transformer. A secondary winding from which head output is taken out is wound in the magnetic path of the transformer.
摘要翻译：具有高记录和再现效率的垂直磁头，其整体结合了升压变压器。用于从记录介质拾取再现磁通并向其施加记录磁场的主极由磁性薄膜形成。由薄膜形成的信号绕组设置在主极的前端附近，以便相对于来自记录介质的再现磁通具有高的每转转换灵敏度。本身构成闭路的信号绕组使升压变压器的磁路相互连接，从而形成变压器的初级绕组。取出头部输出的次级绕组缠绕在变压器的磁路中。

2. 发明授权

US4654739A Thin film magnetic head for reproducing perpendicular magnetization 失效
标题翻译：用于再现垂直磁化的薄膜磁头
公开(公告)号：US4654739A
公开(公告)日：1987-03-31
申请号：US687932
申请日：1984-12-31
申请人： Ken Takahashi , Hiroshi Youda , Seishi Sasaki , Kenji Kanai
发明人： Ken Takahashi , Hiroshi Youda , Seishi Sasaki , Kenji Kanai
IPC分类号： G11B5/33 , G11B5/39 , G11B5/22
CPC分类号： G11B5/3903 , G11B5/332
摘要： A thin film magnetic head for reproducing perpendicular magnetization comprising an operative surface disposed to face a recording medium, a thin film magnetization detection portion including a magneto-resistive element perpendicular to the operative surface of the head with one side edge of the magnetization detection portion being exposed to the operative surface, ferromagnetic material with one end thereof being magnetically coupled to the side edge portion of the thin film magnetization detection portion most distant from said operative surface and with the other end thereof being exposed to the operative surface, and a non-magnetic material disposed in an area defined by the thin film magnetization detection portion, the ferromagnetic material and the operative surface, wherein the distance between the thin film magnetization detection portion and the ferromagnetic material at said operative surface is at least five times the distance between the end of the ferromagnetic material magnetically coupled to the side edge portions of the thin film magnetization detection portion and the operative surface.
摘要翻译：一种用于再现垂直磁化的薄膜磁头，包括设置成面向记录介质的操作表面，薄膜磁化检测部分，包括垂直于磁头的操作表面的磁阻元件，磁化检测部分的一个侧边缘为暴露于操作表面的铁磁材料，其一端磁耦合到最远离所述操作表面的薄膜磁化检测部分的侧边缘部分，并且其另一端暴露于操作表面，设置在由薄膜磁化检测部分，铁磁材料和操作表面限定的区域中的磁性材料，其中薄膜磁化检测部分和所述操作表面处的铁磁材料之间的距离至少为铁磁材料的端部磁耦合到薄膜磁化检测部分的侧边缘部分和操作表面。

3. 发明授权

US4477488A Method of manufacturing magnetic recording medium 失效
标题翻译：磁记录介质的制造方法
公开(公告)号：US4477488A
公开(公告)日：1984-10-16
申请号：US473766
申请日：1983-03-10
申请人： Ryuji Sugita , Kenji Kanai , Seishi Sasaki , Ken Takahashi
发明人： Ryuji Sugita , Kenji Kanai , Seishi Sasaki , Ken Takahashi
IPC分类号： G11B5/66 , G11B5/851 , H01F41/20 , B05D5/12
CPC分类号： H01F41/20 , G11B5/66 , G11B5/851
摘要： In making magnetic recording media by vapor-depositing magnetic metal film containing Co-Cr with 70-90 weight % Co as host material on a high polymer substrate, with or without intermediate layer(s) inbetween, making the high polymer substrate run around a cylindrical can, condition is selected such that linear expansion coefficient of the substrate is 1.0.times.10.sup.-5 -2.9.times.10.sup.-5 /.degree.C. and temperature of the can surface is 150.degree.-300.degree. C.; thereby normal or inverse curling of the resultant recording medium is substantially eliminated.
摘要翻译：在制备磁记录介质的过程中，通过将含有70-90重量％Co的Co-Cr作为主体材料的磁性金属膜通过气相沉积在高聚合物衬底上，在其间具有或不具有中间层，使高分子衬底绕着选择圆筒状，使基板的线膨胀系数为1.0×10 -5 -2.9×10 -5 /℃，罐表面的温度为150〜300℃。从而基本上消除了所得记录介质的正常或反向卷曲。

4. 发明授权

US4700252A Magnetic thin film head 失效
标题翻译：磁性薄膜头
公开(公告)号：US4700252A
公开(公告)日：1987-10-13
申请号：US661252
申请日：1984-10-15
申请人： Hiroaki Muraoka , Seishi Sasaki , Ken Takahashi , Hiroshi Youda
发明人： Hiroaki Muraoka , Seishi Sasaki , Ken Takahashi , Hiroshi Youda
IPC分类号： G11B5/127 , G11B5/39 , G11B5/17
CPC分类号： G11B5/3903 , G11B5/1278
摘要： A magnetic thin film head used for perpendicular magnetic recording and reproduction. The head includes a magneto-resistive element and a flux guide made of high permeability thin film whose one end portion faces a perpendicular magnetic recording medium. The magnetic flux produced by the magnetization signal on the perpendicular magnetic recording medium is led to the magneto-resistive element through the flux guide. The head also includes electrodes for supplying an electric current londitudinally to the magneto-resistive element, and high permeability members for introducing the magnetic flux through the magneto-resistive element back to the perpendicular magnetic recording medium. The head further includes a exciting means for the flux guide.
摘要翻译：用于垂直磁记录和再现的磁性薄膜头。头部包括磁阻元件和由一个端部面向垂直的磁记录介质的高磁导率薄膜制成的磁通引导件。由垂直磁记录介质上的磁化信号产生的磁通量通过磁通引导到磁阻元件。头部还包括用于向纵向磁阻元件提供电流的电极和用于将磁通量通过磁阻元件引导回垂直磁记录介质的高磁导率部件。头部还包括用于通量引导件的激励装置。

5. 发明授权

US4613918A Perpendicular magnetic playback head and a perpendicular magnetic recording and reproducing device 失效
标题翻译：垂直磁回放头和垂直磁记录和再现装置
公开(公告)号：US4613918A
公开(公告)日：1986-09-23
申请号：US483614
申请日：1983-04-11
申请人： Kenji Kanai , Seishi Sasaki , Ken Takahashi , Ryuji Sugita
发明人： Kenji Kanai , Seishi Sasaki , Ken Takahashi , Ryuji Sugita
IPC分类号： G11B5/127 , G11B5/39 , G11B5/40 , G11B5/12 , G11B5/30
CPC分类号： G11B5/3919 , G11B5/1278 , G11B5/3903 , G11B5/399 , G11B5/40
摘要： A magneto-resitive playback head and a recording and reproducing device for reproducing a recording signal from a double-layered film type perpendicular magnetic recording medium. The playback head includes a magneto-resistive element included in high-permeability thin films and having one end portion facing the recording medium. The magneto-resistive element exhibits a magneto-resistance effect responsive to magnetic fluxes generated from signal magnetization in the recording medium. The head also includes electrodes for supplying an electric current longitudinally of the magneto-resistive element, and high-permeability members for introducing the signal magnetic fluxes passed through the magneto-resistive element again to the recording medium. A magnetic recording and reproducing device comprises the playback head, a thin film magnetic recording head, a recording circuit, a playback circuit, and a driving circuit which gives a relative motion between the medium and the heads.
摘要翻译：磁性重放头和用于从双层膜型垂直磁记录介质再现记录信号的记录和再现装置。重放头包括高磁导率薄膜中包含的具有面向记录介质的一个端部的磁阻元件。磁阻元件表现出响应于记录介质中信号磁化产生的磁通量的磁阻效应。磁头还包括用于在磁阻元件纵向提供电流的电极和用于将通过磁阻元件的信号磁通再次引入记录介质的高磁导率部件。一种磁记录和再现装置包括重放头，薄膜磁记录头，记录电路，重放电路和驱动电路，其给出介质和磁头之间的相对运动。

6. 发明授权

US4006343A Code read-out means 失效
标题翻译：代码读出方式
公开(公告)号：US4006343A
公开(公告)日：1977-02-01
申请号：US516679
申请日：1974-10-21
申请人： Yoshiteru Izura , Masaaki Tanaka , Seishi Sasaki
发明人： Yoshiteru Izura , Masaaki Tanaka , Seishi Sasaki
IPC分类号： G06K7/10 , G06K7/14 , G01J1/20 , G06K9/13
CPC分类号： G06K7/10871 , G06K2207/1012
摘要： This invention is characterized by apparatus for detecting whether an object having information to be read-out is located in a scanning light beam. Means are provided for starting or stopping operation of the light source, passing or cutting off the light beam by the detected output. The apparatus includes means for converting the light beam emitted from a light source to a scanning light beam by using a deflection means, means for applying the scanning light beam onto the object and means for reading-out the information contained in the object from the light beam reflected by the object.
摘要翻译：本发明的特征在于用于检测具有要读出的信息的对象是否位于扫描光束中的装置。提供了用于启动或停止光源的操作，通过检测的输出使光束通过或切断的装置。该装置包括用于通过使用偏转装置将从光源发射的光束转换成扫描光束的装置，用于将扫描光束施加到物体上的装置和用于从光中读出包含在物体中的信息的装置光束被物体反射。

7. 发明授权

US08295674B2 Video signal recording and reproducing apparatus 有权
公开(公告)号：US08295674B2
公开(公告)日：2012-10-23
申请号：US11931006
申请日：2007-10-31
申请人： Seishi Sasaki , Yoshikazu Katou
发明人： Seishi Sasaki , Yoshikazu Katou
IPC分类号： H04N5/76
CPC分类号： H04N9/8063 , G11B20/00007 , G11B20/10527 , G11B2020/10592 , G11B2020/10916 , G11B2020/10953 , G11B2020/10962 , G11B2220/2516 , H04N5/4401 , H04N5/45 , H04N5/76 , H04N5/775 , H04N5/781 , H04N5/782 , H04N5/783 , H04N5/85 , H04N9/8042 , H04N9/8227 , H04N19/40 , H04N19/423 , H04N19/428 , H04N19/587 , H04N19/61 , H04N21/4147 , H04N21/42204 , H04N21/4316 , H04N21/4334 , H04N21/440281 , H04N21/47
摘要： The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.

8. 发明授权

US08285109B2 Video signal recording and reproducing apparatus 有权
标题翻译：视频信号记录和再现装置
公开(公告)号：US08285109B2
公开(公告)日：2012-10-09
申请号：US11685825
申请日：2007-03-14
申请人： Seishi Sasaki , Yoshikazu Katou
发明人： Seishi Sasaki , Yoshikazu Katou
IPC分类号： H04N5/76
CPC分类号： H04N9/8063 , G11B20/00007 , G11B20/10527 , G11B2020/10592 , G11B2020/10916 , G11B2020/10953 , G11B2020/10962 , G11B2220/2516 , H04N5/4401 , H04N5/45 , H04N5/76 , H04N5/775 , H04N5/781 , H04N5/782 , H04N5/783 , H04N5/85 , H04N9/8042 , H04N9/8227 , H04N19/40 , H04N19/423 , H04N19/428 , H04N19/587 , H04N19/61 , H04N21/4147 , H04N21/42204 , H04N21/4316 , H04N21/4334 , H04N21/440281 , H04N21/47
摘要： The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.
摘要翻译：本发明的视频信号记录和再现装置包括：接收部分，用于接收电视信号; 图像压缩部分，用于压缩接收到的连续视频信号的每单位时间的信息量; 写入部分，用于经由磁头将作为图像压缩部分的输出获得的压缩视频信号间歇地写入硬盘装置; 读取部分，用于经由磁头从硬盘装置间歇地读出写入的压缩视频信号; 解码部分，用于将读取的压缩视频信号恢复为原始视频信号; 用于显示恢复的视频信号的显示部分; 以及控制部分，用于控制写入部分和读取部分，使得将视频信号写入硬盘装置并从硬盘装置读取预先写入硬盘装置的任意视频信号，同时执行并不断。

9. 发明授权

US07231136B2 Video signal recording and reproducing apparatus 有权
标题翻译：视频信号记录和再现装置
公开(公告)号：US07231136B2
公开(公告)日：2007-06-12
申请号：US10165266
申请日：2002-06-07
申请人： Seishi Sasaki , Yoshikazu Katou
发明人： Seishi Sasaki , Yoshikazu Katou
IPC分类号： H04N5/917
CPC分类号： H04N9/8063 , G11B20/00007 , G11B20/10527 , G11B2020/10592 , G11B2020/10916 , G11B2020/10953 , G11B2020/10962 , G11B2220/2516 , H04N5/4401 , H04N5/45 , H04N5/76 , H04N5/775 , H04N5/781 , H04N5/782 , H04N5/783 , H04N5/85 , H04N9/8042 , H04N9/8227 , H04N19/40 , H04N19/423 , H04N19/428 , H04N19/587 , H04N19/61 , H04N21/4147 , H04N21/42204 , H04N21/4316 , H04N21/4334 , H04N21/440281 , H04N21/47
摘要： The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.
摘要翻译：本发明的视频信号记录和再现装置包括：接收部分，用于接收电视信号; 图像压缩部分，用于压缩接收到的连续视频信号的每单位时间的信息量; 写入部分，用于经由磁头将作为图像压缩部分的输出获得的压缩视频信号间歇地写入硬盘装置; 读取部分，用于经由磁头从硬盘装置间歇地读出写入的压缩视频信号; 解码部分，用于将读取的压缩视频信号恢复为原始视频信号; 用于显示恢复的视频信号的显示部分; 以及控制部分，用于控制写入部分和读取部分，使得将视频信号写入硬盘装置并从硬盘装置读取预先写入硬盘装置的任意视频信号，同时执行并不断。

10. 发明授权

US06377915B1 Speech decoding using mix ratio table 失效
标题翻译：语音解码使用混合比表
公开(公告)号：US06377915B1
公开(公告)日：2002-04-23
申请号：US09525066
申请日：2000-03-14
申请人： Seishi Sasaki
发明人： Seishi Sasaki
IPC分类号： G10L1106
CPC分类号： G10L19/18 , G10L19/04 , G10L2025/937
摘要： A decoder compares a spectral envelope value y8 on a frequency axis with a predetermined threshold f9 to identify a voiced region and an unvoiced region. An excitation signal is produced by using excitations suitable for respective frequency regions. An encoder applies the nonuniform quantization to the period of the aperiodic pitch in accordance with its frequency of occurrence. The result of the nonuniform quantization is transmitted together with the quantization result of the unvoiced state and the periodic pitch as one code. A decoder obtains spectral envelope amplitude l8′ from the spectral envelope information, and identifies a frequency band e10′ where the spectral envelope amplitude value is maximized in each of respective bands divided on the frequency axis. A mixing ratio g8′, which is used in mixing a pitch pulse generated in response to the pitch period information and white noise, is determined based on the identified frequency band and voiced/unvoiced discriminating information. A mixing signal of each frequency band is produced in accordance with the mixing ratio. Then, the mixing signals of respective frequency bands are summed up to produce a mixed excitation signal x8′.
摘要翻译：解码器将频率轴上的频谱包络值y8与预定阈值f9进行比较，以识别有声区域和无声区域。通过使用适合于各个频率区域的激励来产生激励信号。编码器根据其发生频率将非均匀量化应用于非周期性音调的周期。将非均匀量化的结果与无声状态和周期性音调的量化结果一起发送为一个代码。解码器从频谱包络信息中获得频谱包络幅度l8'，并且识别在频率轴上划分的每个频带中的频谱包络幅度值最大化的频带e10'。基于所识别的频带和有声/无声识别信息来确定用于混合响应于音调周期信息而产生的音调脉冲和白噪声的混合比g8'。每个频段的混合信号根据混合比产生。然后，将各个频带的混合信号加起来产生混合的激励信号x8'。

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