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1. 发明授权

US4253723A Apparatus for optically reading information from a record carrier 失效
标题翻译：用于从记录载体光学读取信息的装置
公开(公告)号：US4253723A
公开(公告)日：1981-03-03
申请号：US841210
申请日：1977-10-11
申请人： Chiaki Kojima , Takashi Otobe , Hiroshi Ohki
发明人： Chiaki Kojima , Takashi Otobe , Hiroshi Ohki
IPC分类号： G02B5/32 , G11B7/085 , G11B7/09 , G11B7/1353 , G11B7/1374 , G11B7/12
CPC分类号： G02B5/32 , G11B7/0917 , G11B7/1353 , G11B7/1374 , G11B2007/0924 , G11B7/0901
摘要： Apparatus for reading optically detectable indicia on a record carrier, such as video information which is recorded in the form of pits on a record medium, for example, a video disc. A source of coherent light transmits a beam to the record carrier. A hologram is interposed between the coherent light source and the carrier, the hologram serving to focus the beam on the record carrier. The intensity of the focussed beam is modulated by the recorded indicia, and at least one photodetector is disposed in an optical path traversed by the modulated beam so as to detect the intensity thereof. In a preferred embodiment, the hologram focusses the beam onto the surface of the record medium whereat it is modulated and reflected therefrom to the photodetector. Plural photodetectors may be provided in separate optical paths traversed by the reflected light so as to produce outputs which, upon comparison with each other, represent deviations, or tracking errors, in the location of incidence of the light beam on the record medium. In yet another embodiment, the hologram directs the coherent light to the record medium along two different optical paths so that the reflection of one beam can be used to read out the recorded information and the reflection of the other beam can be used to detect focussing fluctuations. In a still further embodiment, another hologram is used to receive and direct reflected light to the photodetector.
摘要翻译：用于在记录载体上读取光学可检测标记的装置，例如以记录介质（例如视频盘）上的凹坑形式记录的视频信息。相干光源将光束传输到记录载体。全息图被插入在相干光源和载体之间，全息图用于将光束聚焦在记录载体上。聚焦光束的强度由所记录的标记调制，并且至少一个光电探测器设置在由调制光束穿过的光路中，以便检测其强度。在优选实施例中，全息图将光束聚焦到记录介质的表面上，在该表面上被调制并从其反射到光电探测器。可以在由反射光穿过的分开的光路中提供多个光电检测器，以便产生在彼此比较时在光束在记录介质上的入射位置的偏差或跟踪误差的输出。在另一个实施例中，全息图将相干光沿着两个不同的光学路径引导到记录介质，使得可以使用一个光束的反射来读出记录的信息，并且可以使用另一个光束的反射来检测聚焦波动。在又一个实施例中，使用另一全息图来接收并将反射光引导到光电检测器。

2. 发明授权

US4142210A Rotatable record carrier and method and apparatus for producing same 失效
标题翻译：可转动记录载体及其制造方法和装置
公开(公告)号：US4142210A
公开(公告)日：1979-02-27
申请号：US851304
申请日：1977-11-14
申请人： Takashi Otobe , Chiaki Kojima , Hiroshi Ohki
发明人： Takashi Otobe , Chiaki Kojima , Hiroshi Ohki
IPC分类号： G11B7/00 , G11B7/0045 , G11B23/00 , H04N5/92
CPC分类号： G11B7/0045 , G11B23/0007
摘要： A rotatable record carrier upon which reproducible information is recorded in the form of spaced apart pits in substantially concentric circular tracks on a surface of the carrier. A method of producing this record carrier is disclosed wherein, although the linear velocity of each track is dependent upon the radius of the track, the length of the pits in the respective tracks does not vary as a function of the change in the radius from one track to the next. A light beam is modulated with a rectangular pulse information signal, the duration of each pulse being controlled as a function of the radius of the track which is being scanned by the modulated light beam. For tracks having a smaller radius, the pulse duration is made larger than for tracks having a larger radius. When the record carrier of this invention is used for optically reproducing the recorded information signals, a proper relationship between the size of the scanning beam spot and the length of the recorded pits can be maintained merely by retaining a substantially constant beam spot.
摘要翻译：可旋转的记录载体，可再现的信息以分隔开的凹坑的形式记录在载体的表面上的基本上同心的圆形轨道中。公开了一种产生该记录载体的方法，其中，尽管每个轨道的线速度取决于轨道的半径，但各个轨迹中的凹坑的长度不随着半径的变化而变化追踪到下一个用矩形脉冲信息信号调制光束，每个脉冲的持续时间被控制为被调制光束扫描的轨道的半径的函数。对于具有较小半径的轨道，使脉冲持续时间大于具有较大半径的轨道。当本发明的记录载体用于光学再现所记录的信息信号时，仅通过保持基本上恒定的光束点就可以保持扫描光点的尺寸和记录的凹坑的长度之间的适当的关系。

3. 发明授权

US4107729A Method and apparatus for reproducing signals from a rotating record medium and method and apparatus for making same 失效
标题翻译：用于从旋转记录介质再现信号的方法和装置及其制造方法和装置
公开(公告)号：US4107729A
公开(公告)日：1978-08-15
申请号：US751179
申请日：1976-12-16
申请人： Takashi Otobe , Chiaki Kojima , Hiroshi Ohki
发明人： Takashi Otobe , Chiaki Kojima , Hiroshi Ohki
IPC分类号： G11B20/02 , H04N5/781 , H04N5/92 , H04N9/82 , H04N9/85 , H04N5/76
CPC分类号： H04N5/781 , H04N5/92 , H04N9/82
摘要： A method of and apparatus for recovering information from a record medium of the type wherein the information is modulated onto a carrier and recorded in one portion of the record medium and the carrier is recorded in another portion of the record medium. The modulated information is reproduced from the record medium while the medium is rotated, and simultaneously, the carrier also is reproduced from the medium. The reproduced modulated information then is demodulated with the reproduced carrier to recover the original signal information. In one embodiment, the recorded information is a composite color television signal and the carrier constitutes the chrominance subcarrier for the color television signal.Also disclosed is a method and apparatus for recording signal information on a rotatable record medium. A reference signal is provided and is recorded in a circular track on the record medium. Signal information also is provided and is modulated onto the reference signal, the modulated signal information then being recorded in a separate portion of the record medium. In one embodiment, the reference signal upon which the signal information is modulated is the previously recorded reference signal that has been played back from the record medium. The signal information may comprise color video signal components and the reference signal may comprise one or more subcarriers for the color video signal components. Preferably, the color video components which are modulated onto the subcarriers are combined with a luminance signal and recorded as a composite color television signal.
摘要翻译：一种用于从该类型的记录介质中恢复信息的方法和装置，其中信息被调制到载体上并被记录在记录介质的一部分中，载体被记录在记录介质的另一部分中。当介质旋转时，从记录介质再现调制信息，并且同时也从介质再现载体。然后再现的已调制信息用再现的载波进行解调，以恢复原始信号信息。在一个实施例中，记录的信息是复合彩色电视信号，载波构成彩色电视信号的色度副载波。

4. 发明授权

US4157568A Method and apparatus for optically reproducing a rotatable record with a scanning light beam of changing size 失效
标题翻译：用于以具有变化的尺寸的扫描光束光学地再现可旋转记录的方法和装置
公开(公告)号：US4157568A
公开(公告)日：1979-06-05
申请号：US855303
申请日：1977-11-28
申请人： Hiroshi Ohki , Takashi Otobe , Chiaki Kojima
发明人： Hiroshi Ohki , Takashi Otobe , Chiaki Kojima
IPC分类号： H04N5/85 , G11B7/005 , G11B7/12 , G11B7/125 , G11B7/135 , G11B7/1381 , G11B7/18 , G11B19/24
CPC分类号： G11B7/0908 , G11B19/24 , G11B7/005 , G11B7/12 , G11B7/1381
摘要： A rotatable record carrier upon which reproducible information is recorded in the form of spaced apart pits in substantially concentric circular tracks on a surface of the carrier. The pits may represent frequency-modulated information signals, and the lengths of the pits are independent of the frequency of the information signals. A method and apparatus for reproducing information from this record carrier is disclosed, wherein a light beam is used to scan the tracks of the record medium, and the size of the scanning light beam is changed as a function of the radius of the track which then is being scanned so as to increase the size of the beam when a track of larger radius is scanned. This control over the size of the scanning beam establishes a constant relationship between the size of the beam and the length of the pits despite changes in the pit length due to the different radii of the tracks.
摘要翻译：可旋转的记录载体，可再现的信息以分隔开的凹坑的形式记录在载体的表面上的基本上同心的圆形轨道中。凹坑可以表示频率调制信息信号，并且凹坑的长度与信息信号的频率无关。公开了一种用于从该记录载体再现信息的方法和装置，其中使用光束来扫描记录介质的轨道，并且扫描光束的尺寸随着轨道的半径而变化正在进行扫描，以便当扫描较大半径的轨道时增加光束的尺寸。对于扫描光束的尺寸的这种控制建立了光束的尺寸和凹坑的长度之间恒定的关系，尽管由于轨道的不同半径引起的凹坑长度的变化。

5. 发明授权

US4152726A Record disk and method for producing the same with constant width groove 失效
标题翻译：记录磁盘及其制造方法，具有恒定宽度的凹槽
公开(公告)号：US4152726A
公开(公告)日：1979-05-01
申请号：US710098
申请日：1976-07-30
申请人： Chiaki Kojima , Yuzuru Yanagisawa , Takashi Otobe , Hiroshi Ohki
发明人： Chiaki Kojima , Yuzuru Yanagisawa , Takashi Otobe , Hiroshi Ohki
IPC分类号： G11B3/00 , G11B3/70 , G11B3/72 , G11B7/007 , G11B7/128 , G11B7/26 , G11B23/00 , H04N5/76 , G11B7/00
CPC分类号： G11B7/128 , G11B23/0057 , G11B3/702 , G11B3/72 , G11B7/007 , G11B7/261
摘要： In a record disk having a spiral groove in a surface thereof with the depth of the groove varying along the latter for representing recorded information, such as video signals; the groove has an inverted bell-shaped cross-section which is symmetrical about the median of the groove with each of the opposite side surfaces of the groove, at any location therealong, being defined approximately by the equationd.sub.x =d.sub.o .multidot.exp [-(x/w).sup.2 ]in which d.sub.o is the depth of the groove at the median thereof, w is the distance from the median of the groove to the point at the side surface of the groove where the depth is d.sub.o /e (e being the base of the natural logarithm), and d.sub.x is the depth of the groove at the respective side surface at a distance x from the median. The foregoing record disk is conveniently molded in correspondence with an original recording disk produced by directing a laser light beam which has a Gaussian energy distribution thereacross against a layer of positive type photo-resist material on the original recording disk while the latter and the light beam are moved relative to each other for scanning a spiral track of constant pitch on the original recording disk and while the intensity of the laser light beam is modulated by the information signals to be recorded, and then developing the layer of photo-resist material.
摘要翻译：在具有在其表面上具有螺旋槽的记录盘中，凹槽的深度沿着该槽的深度变化，用于表示诸如视频信号的记录信息; 凹槽具有倒置的钟形横截面，其关于凹槽的中间对称，凹槽的每个相对的侧表面在其任何位置处，大致由方程式DX = DOxEXP [ - （X / W）2]在中间的深处，W在距离中心的距离到距离深度为E / E的地面的边缘的距离（E为基准）的自然对数），而DX是距离媒体的距离X的相对侧表面上的深度。上述记录盘与通过将具有高斯能量分布的激光束对准原始记录盘上的正型光致抗蚀剂材料层而产生的原始记录盘相适应地模制，而后者和光束相对于彼此移动，用于扫描原始记录盘上的恒定螺距的螺旋轨迹，同时激光束的强度被待记录的信息信号调制，然后显影该光致抗蚀材料层。

6. 发明授权

US5367398A Optical atmospheric link system 失效
标题翻译：光大气连接系统
公开(公告)号：US5367398A
公开(公告)日：1994-11-22
申请号：US43734
申请日：1993-04-07
申请人： Yujiro Ito , Kohji Suzuki , Takashi Otobe
发明人： Yujiro Ito , Kohji Suzuki , Takashi Otobe
IPC分类号： G02B26/08 , H02K41/02 , H04B10/07 , H04B10/11 , H04B10/112 , H04B10/00
CPC分类号： H04B10/1125 , H02K41/031
摘要： An optical atmospheric link system controls the angle an emitted light beam makes to a predetermined direction. A turning force is supplied to a rigid body housing an optical system without direct contact with the rigid body so that changes in the optical axis caused by a disturbance can be compressed, allowing servo-control operation to adjust the optical axis with high speed and with less driving power.
摘要翻译：光学大气连杆系统控制发射光束对预定方向的角度。旋转力被提供给容纳光学系统的刚体，而不与刚体直接接触，从而可以压缩由干扰引起的光轴变化，从而允许伺服控制操作以高速度和与较少的驱动力。

7. 发明授权

US08285783B2 Distribution system and distribution method 失效
标题翻译：配电系统及配电方式
公开(公告)号：US08285783B2
公开(公告)日：2012-10-09
申请号：US10380715
申请日：2001-09-20
申请人： Takashi Otobe
发明人： Takashi Otobe
IPC分类号： G06F15/16
CPC分类号： H04N21/441 , G07C9/00031 , G07C9/00087 , G07C9/00134 , H04N7/15 , H04N7/17318 , H04N21/2223 , H04N21/25883 , H04N21/41407 , H04N21/41415 , H04N21/4223 , H04N21/42684 , H04N21/4316 , H04N21/4415 , H04N21/4722 , H04N21/4753 , H04N21/6131
摘要： A portable terminal apparatus including an individual identification acquiring device and a unit for transmitting individual identification information. A central controller allows for comparing a piece of individual identification data, stored in a storage unit to the received individual identification information and, if an individual identification code could be specified, the portable terminal apparatus obtains information from the base apparatus. The distributive information storage unit stores information to be distributed. Information relative to a material displayed on a large-sized image display apparatus is transmitted from the base apparatus to the portable terminal apparatus through a communication line.
摘要翻译：一种便携式终端装置，包括个体识别获取装置和用于发送个体识别信息的单元。中央控制器允许将存储在存储单元中的一条单独的识别数据与接收到的各个识别信息进行比较，并且如果可以指定单独的识别码，便携式终端设备从基本设备获得信息。分发信息存储单元存储要分发的信息。相对于在大尺寸图像显示装置上显示的材料的信息通过通信线从基本装置发送到便携式终端装置。

8. 发明授权

US4488109A Phase detectors for detecting a mutual phase difference between two signals 失效
标题翻译：用于检测两个信号之间的相位差的相位检测器
公开(公告)号：US4488109A
公开(公告)日：1984-12-11
申请号：US456503
申请日：1983-01-07
申请人： Takashi Otobe , Yasutoshi Komatsu , Yoshikazu Murakami
发明人： Takashi Otobe , Yasutoshi Komatsu , Yoshikazu Murakami
IPC分类号： H03D9/04 , H03D13/00 , G01R25/00
CPC分类号： H03D13/007 , H03D13/00
摘要： A phase detector for detecting a mutual phase difference between two signals, such as first and second microwave signals, comprises first and second signal paths for being supplied with first and second input signals of the same frequency, respectively, and providing with a predetermined additional mutual phase difference between the first and second input signals at their output ends and a field effect transistor having a pair of input electrodes connected to the output ends of the first and second signal paths, respectively, and an output electrode from which an output signal representing a mutual phase difference which the first and second input signals have originally therebetween is derived. The first and second input signals at the input electrodes of the field effect transistor have the original mutual phase difference which is to be detected and the predetermined additional mutual phase difference added by the first and second signal paths therebetween. The field effect transistor is biased to operate with a gate bias voltage nearly equal to a pinch-off voltage thereof. In order to establish such biasing state without reducing the operational gain of the field effect transistor, a biasing resistance connected to the source of the field effect transistor is selected to be low and a current source is provided for supplying an external biasing current to the biasing resistance, thereby to produce the gate bias voltage required.
摘要翻译：用于检测诸如第一和第二微波信号的两个信号之间的相互相位差的相位检测器包括分别被提供有相同频率的第一和第二输入信号的第一和第二信号路径，并且提供预定的附加相互在其输出端处的第一和第二输入信号之间的相位差和分别连接到第一和第二信号路径的输出端的一对输入电极的场效应晶体管和输出电极，输出信号表示导出第一和第二输入信号之间的相互相位差。场效应晶体管的输入电极处的第一和第二输入信号具有待检测的原始相位差和由它们之间的第一和第二信号路径相加的预定附加相位差。场效应晶体管被偏置以以几乎等于其夹断电压的栅极偏置电压工作。为了在不降低场效应晶体管的操作增益的情况下建立这种偏置状态，连接到场效应晶体管的源极的偏置电阻被选择为低，并且提供电流源以向偏置电压提供外部偏置电流电阻，从而产生所需的栅极偏置电压。

9. 发明授权

US5506716A Method, circuit, and apparatus for mitigating effects of wavelength-dependent atmospheric transmission characteristics on atmospheric optical telecommunication 失效
标题翻译：用于减轻波长依赖的大气传播特性对大气光通信的影响的方法，电路和装置
公开(公告)号：US5506716A
公开(公告)日：1996-04-09
申请号：US361644
申请日：1994-12-22
申请人： Kanji Mihara , Akira Hirashima , Takashi Otobe , Yujiro Ito
发明人： Kanji Mihara , Akira Hirashima , Takashi Otobe , Yujiro Ito
IPC分类号： H04B10/572 , H04B10/07 , H04B10/11 , H04B10/112 , H04B10/2507 , H04B10/293 , H04B10/564 , H04B10/00
CPC分类号： H04B10/1125
摘要： A method, circuit, and apparatus for mitigating effects of wavelength-dependent atmospheric transmission characteristics on an atmospheric optical telecommunication system. The system comprises two atmospheric optical telecommunication units communicating with one another using light propagated through the atmosphere. Each of the atmospheric telecommunication units includes an optical transmitter having a laser generating a transmitted light beam for reception by the other, and an optical receiver. The optical receiver generates an electrical signal in response to a received light beam received from the other of the atmospheric optical telecommunication units. In the method, an increase in noise above a normal noise level is detected in the electrical signal, and a flag signal is generated in response. The increase in noise is due to the received light beam having a wavelength at which the atmosphere has a wavelength-dependent transmission characteristic. In response to the flag signal, the wavelength of the transmitted light beam is changed to a wavelength at which the transmission characteristic of the atmosphere is less wavelength-dependent.
摘要翻译：一种用于减轻大气光通信系统上波长依赖大气传播特性的影响的方法，电路和装置。该系统包括使用通过大气传播的光彼此通信的两个大气光通信单元。每个大气通信单元包括具有产生用于由另一个接收的透射光束的激光的光发射器和光接收器。光接收器响应从另一个大气光通信单元接收的接收光束产生电信号。在该方法中，在电信号中检测到高于正常噪声电平的噪声增加，并且响应地产生标志信号。噪声的增加是由于接收的光束具有大气具有波长相关传输特性的波长。响应于标志信号，透射光束的波长被改变为大气的透射特性与波长相关的波长。

10. 发明授权

US4692721A Dielectric rotary coupler 失效
标题翻译：介质旋转耦合器
公开(公告)号：US4692721A
公开(公告)日：1987-09-08
申请号：US788726
申请日：1985-10-17
申请人： Yujiro Ito , Yasutoshi Kamatsu , Takashi Otobe
发明人： Yujiro Ito , Yasutoshi Kamatsu , Takashi Otobe
IPC分类号： H01P1/06 , H01P5/08 , H01P3/16 , H01P5/18
CPC分类号： H01P1/068
摘要： A dielectric rotary coupler for electromagnetic waves of the microwave frequency region structured of a substantially ring-shaped rotary member and a stationary member, each member being formed of a dielectric waveguide, or line, having a rectangular cross-section. The rotary line and the stationary line are arranged to face each other with a predetermined space therebetween along a coupling length, through which a microwave, for example, a carrier microwave FM-modulated by a signal reproduced by a rotary head of a VTR, is coupled from the rotary line to the stationary line, or vice versa.
摘要翻译：一种由基本环形的旋转构件和固定构件构成的微波频率区域的电磁波的介质旋转耦合器，每个构件由具有矩形横截面的电介质波导或线形成。旋转线和固定线沿着耦合长度以其间的预定间隔相对地彼此面对，微波（例如由VTR的旋转头再现的信号调制的载波微波FM）通过该耦合长度为从旋转线耦合到固定线，反之亦然。

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