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1. 发明授权

US06392770B1 Multi-point optical transmission system 有权
标题翻译：多点光传输系统
公开(公告)号：US06392770B1
公开(公告)日：2002-05-21
申请号：US09320144
申请日：1999-05-26
申请人： Hiroyuki Sasai , Kazuki Maeda , Koichi Masuda
发明人： Hiroyuki Sasai , Kazuki Maeda , Koichi Masuda
IPC分类号： H04J1408
CPC分类号： H04B10/25753 , H04B10/25752 , H04J14/0298
摘要： Radio base stations subject each code-division multiplex signal to frequency conversion so as to vary each frequency thereof according to the radio base stations and then converts the signal to an optical signal before transmitting the same to a switching station. The switching station multiplexes the optical signals, subjects a signal obtained after multiplexing to optical-electrical conversion, and extracts the code-division multiplex signal from the respective electrical signal obtained after the conversion. Consequently, each signal to be demodulated by demodulating sections includes nothing but the code-division multiplex signal outputted from the radio base stations. Therefore, a code-division multiplex signal outputted from a desired base station is not disturbed by code-division multiplex signals outputted from the other stations as a noise as will be in a conventional system.
摘要翻译：无线电基站将每个码分多路复用信号进行频率转换，以根据无线电基站改变其每个频率，然后在将信号发送到交换台之前将该信号转换为光信号。开关站将光信号复用，对多路复用后获得的信号进行光电转换，并从转换后获得的各电信号中提取码分多路复用信号。因此，由解调部分解调的每个信号仅包括从无线电基站输出的码分多路复用信号。因此，从传统的系统来看，从其它站输出的码分多路复用信号作为噪声不会妨碍从期望的基站输出的码分多路复用信号。

2. 发明授权

US06459519B1 Optical transmitter-receiver 失效
标题翻译：光收发器
公开(公告)号：US06459519B1
公开(公告)日：2002-10-01
申请号：US09056611
申请日：1998-04-08
申请人： Hiroyuki Sasai , Kazuki Maeda , Kuniaki Utsumi
发明人： Hiroyuki Sasai , Kazuki Maeda , Kuniaki Utsumi
IPC分类号： H04B1004
CPC分类号： H04B10/572 , H04B10/505 , H04B10/5051
摘要： A modulated electrical signal Smod produced upon amplitude-modulating a subcarrier having a high frequency (for example, a millimeter-wave band) by a baseband signal SBB to be transmitted and a main carrier MC outputted from a light source are inputted to an external optical modulating portion in an optical transmitter. The external optical modulating portion amplitude-modulates the main carrier MC by the modulated electrical signal Smod, to output a double-modulated optical signal OSdmod to an optical filter portion. The optical filter portion passes only a component of one of sidebands included in the double-modulated optical signal OSdmod, and outputs the component to an optical fiber as an optical signal OS. An optical/electrical converting portion in an optical receiver optical/electrical-converts the optical signal OS transmitted through the optical fiber, to directly obtain a baseband signal SBB. Consequently, the optical receiver is constructed simply and at low cost without requiring a wideband optical/electrical converting element for optical/electrical-converting a high-frequency electrical signal and a high-frequency electrical component (a frequency converter, a demodulator, a semirigid cable or a waveguide) which is very high in cost or is difficult to process.
摘要翻译：通过对要发送的基带信号SBB和从光源输出的主载波MC对具有高频（例如，毫米波频带）的子载波进行幅度调制而产生的调制电信号Smod被输入到外部光调制部分。外部光调制部通过调制后的电信号Smod对主载波MC进行振幅调制，将双调制光信号OSdmod输出到滤光器部。光滤波器部分仅通过包含在双调制光信号OSdmod中的一个边带的分量，并将该分量输出到光纤作为光信号OS。光接收机中的光/电转换部分对通过光纤传输的光信号OS进行光/电转换，以直接获得基带信号SBB。因此，光接收机简单且低成本地构成，而不需要用于光/电转换高频电信号和高频电气部件的宽带光/电转换元件（变频器，解调器，半刚性电缆或波导），其成本非常高或难以处理。

3. 发明授权

US06292673B1 Radio signal transmitter 有权
标题翻译：无线电信号发射机
公开(公告)号：US06292673B1
公开(公告)日：2001-09-18
申请号：US09343681
申请日：1999-06-30
申请人： Kazuki Maeda , Hiroyuki Sasai , Kouichi Masuda , Susumu Morikura
发明人： Kazuki Maeda , Hiroyuki Sasai , Kouichi Masuda , Susumu Morikura
IPC分类号： H04B700
CPC分类号： H04B1/04
摘要： A signal including an RF signal and a code division multiple access signal is transmitted so that, in relation to both of the RF signal and the code division multiple access signal, a receiving end can obtain a signal having sufficiently larger power as compared with noise and with no distortion. In order to attain this object, a separation part separates the signal into the RF signal and the code division multiple access signal at a sending end. An amplification part amplifies the RF signal with an amplification factor related to its power. An amplification part amplifies the code division multiple access signal with an amplification factor related to its power. A combination part combines the amplified RF signal and the amplified code division multiple access signal with each other.
摘要翻译：发送包括RF信号和码分多址信号的信号，使得相对于RF信号和码分多址信号两者，接收端可以获得与噪声相比具有足够大功率的信号，并且没有失真。为了实现这个目的，分离部分在发送端将信号分离成RF信号和码分多址信号。放大部分以与其功率相关的放大因子放大RF信号。放大部分以与其功率相关的放大因子放大码分多址信号。组合部分将放大的RF信号和放大的码分多址信号彼此组合。

4. 发明授权

US5825518A Optical transmission unit 失效
标题翻译：光传输单元
公开(公告)号：US5825518A
公开(公告)日：1998-10-20
申请号：US613226
申请日：1996-03-08
申请人： Kazuki Maeda , Koichi Masuda , Hiroaki Nakata
发明人： Kazuki Maeda , Koichi Masuda , Hiroaki Nakata
IPC分类号： H04J14/02
CPC分类号： H04J14/0298
摘要： An AM signal source frequency-multiplexes and outputs a plurality of AM signals. A soft clipper, which is formed by an amplifier or the like, nonlinearly loosely limits a large amplitude portion (impulsively changed portion) of the frequency-multiplexed AM signal by using its saturation property. Thereafter, an attenuator performs level adjustment for setting the signal at a prescribed degree of optical modulation. On the other hand, a 16QAM signal source frequency-multiplexes and outputs a plurality of 16QAM signals having different carrier frequencies. A frequency multiplexing part further frequency-multiplexes the AM multiplex signal with the 16QAM multiplex signal. An optical transmitter intensity-modulates a laser output beam with the frequency multiplex signal from the frequency multiplexing part and transmits the same. No clipping distortion occurs at this time. An optical signal from the optical transmitter is transmitted to a receiving system through an optical fiber member and is demodulated.
摘要翻译： AM信号源对多个AM信号进行频率复用并输出。由放大器等形成的软削波器通过使用其饱和特性非线性地宽松地限制频率复用的AM信号的大幅度部分（脉冲变化部分）。此后，衰减器进行电平调整，以在规定的光调制度下设置信号。另一方面，16QAM信号源对具有不同载波频率的多个16QAM信号进行频率复用并输出。频率复用部分对AM复用信号与16QAM多路复用信号进行多路复用。光发射机利用来自频率复用部分的频率复用信号强度调制激光输出光束并传输。此时不产生剪切失真。来自光发送器的光信号通过光纤部件发送到接收系统，并被解调。

5. 发明授权

US5574569A Image signal transmission apparatus for repeatedly reproducing and transmitting a main image and a sub-image using an optical disc 失效
标题翻译：图像信号发送装置，用于使用光盘重复地再现和发送主图像和子图像
公开(公告)号：US5574569A
公开(公告)日：1996-11-12
申请号：US345933
申请日：1994-11-28
申请人： Kuniaki Utsumi , Kazuki Maeda
发明人： Kuniaki Utsumi , Kazuki Maeda
IPC分类号： H04N5/85 , H04N5/93 , H04N5/76
CPC分类号： H04N5/9305 , H04N5/85
摘要： The present invention provides an optical disc comprising a main-image signal recording area holding a signal of a main image for a display, and a sub-image signal recording area holding a signal of a sub image to be displayed including an image of a time counted down in accordance with a progress of a sub-image signal reproduction. Furthermore it provides an image signal transmitting apparatus for repeatedly transmitting a main-image signal and a sub-image signal one after the other by utilizing such optical disc, the image signal transmitting apparatus comprising a image signal reproduction device for reproducing the main-image signal and the sub-image signal, a cycle time memory for memorizing a main-image signal transmission cycle, and a control device for obtaining a time difference between the cycle and time required for the main-image signal reproduction as well as control the image signal reproduction device.
摘要翻译：本发明提供了一种光盘，其包括保持用于显示的主图像的信号的主图像信号记录区域和保持要显示的子图像的信号的子图像信号记录区域，包括时间图像根据子图像信号再现的进度向下计数。此外，它提供了一种图像信号发送装置，用于通过利用这种光盘重复地发送主图像信号和子图像信号，图像信号发送装置包括用于再现主图像信号的图像信号再现装置和子图像信号，用于存储主图像信号发送周期的周期时间存储器，以及用于获得主图像信号再现所需的周期和时间之间的时间差以及控制图像信号的控制装置再现设备。

6. 发明授权

US5432767A Optical disc, an image signal transmitting apparatus utilizing the optical disc and an image signal transmitting method 失效
标题翻译：光盘，利用光盘的图像信号发送装置和图像信号发送方法
公开(公告)号：US5432767A
公开(公告)日：1995-07-11
申请号：US987660
申请日：1992-12-09
申请人： Kuniaki Utsumi , Kazuki Maeda
发明人： Kuniaki Utsumi , Kazuki Maeda
IPC分类号： G11B27/10 , G11B7/0037 , H04N5/222 , H04N5/265 , H04N5/85 , H04N5/92 , H04N5/93 , H04N7/16 , G11B5/09
CPC分类号： H04N5/45 , H04N5/222 , H04N5/9205 , G11B7/0037 , H04N5/85 , H04N5/9305
摘要： The present invention provides an optical disc comprising a main-image signal recording area holding a signal of a main image for a display, and a sub-image signal recording area holding a signal of a sub image to be displayed including an image of a time counted down in accordance with a progress of a sub-image signal reproduction. Furthermore it provides an image signal transmitting apparatus for repeatedly transmitting a main-image signal and a sub-image signal one after the other by utilizing such optical disc, the image signal transmitting apparatus comprising a image signal reproduction device for reproducing the main-image signal and the sub-image signal, a cycle time memory for memorizing a main-image signal transmission cycle, and a control device for obtaining a time difference between the cycle and time required for the main-image signal reproduction as well as control the image signal reproduction device.
摘要翻译：本发明提供了一种光盘，其包括保持用于显示的主图像的信号的主图像信号记录区域和保持要显示的子图像的信号的子图像信号记录区域，包括时间图像根据子图像信号再现的进度向下计数。此外，它提供了一种图像信号发送装置，用于通过利用这种光盘重复地发送主图像信号和子图像信号，图像信号发送装置包括用于再现主图像信号的图像信号再现装置和子图像信号，用于存储主图像信号发送周期的周期时间存储器，以及用于获得主图像信号再现所需的周期和时间之间的时间差以及控制图像信号的控制装置再现设备。

7. 发明授权

US5339315A Cable broadcasting system and the transmission center for on demand program services 失效
标题翻译：有线广播系统和按需节目服务的传输中心
公开(公告)号：US5339315A
公开(公告)日：1994-08-16
申请号：US887475
申请日：1992-05-22
申请人： Kazuki Maeda , Kuniaki Utsumi , Katsuyuki Fujito
发明人： Kazuki Maeda , Kuniaki Utsumi , Katsuyuki Fujito
IPC分类号： H04H20/16 , H04H20/33 , H04H20/69 , H04H20/76 , H04H60/15 , H04H60/23 , H04N7/16 , H04N7/173 , H04N7/22 , H04N21/2365 , H04N21/238
CPC分类号： H04H60/15 , H04H20/16 , H04H20/33 , H04H20/69 , H04H20/76 , H04H60/16 , H04H60/23 , H04N21/2383 , H04N21/4382 , H04N7/163 , H04N7/17336 , H04N7/22
摘要： The present invention provides a cable broadcasting system and the transmission center employed therein. In the transmission center, plural images are divided into several groups in the same kinds and each image in one kind is repeated not simultaneously so that they are outputted as independent plural image signals, and the image that the subscribers have requested is selected from those plural image signals which is enciphered, modulated, and multiplexed to be transmitted in optical transmission lines through an available channel to the subscribers, while the transmission channel is validated as well as the enciphered image signal is deciphered at the subscribers' end in order to enable the subscribers to watch the image they have requested.
摘要翻译：本发明提供一种有线广播系统及其中采用的传输中心。在传输中心，将多个图像分成相同种类的几个组，并且一个类型的每个图像不被同时重复，使得它们作为独立的多个图像信号输出，并且从多个图像中选择用户已经请求的图像图像信号被加密，调制和多路复用以在光传输线路中通过可用信道发送给用户，而传输信道被验证，并且加密的图像信号在用户端被解密，以使得能够订阅者观看他们要求的图像。

8. 发明申请

US20140290320A1 BAND-SHAPED LUBRICATING MATERIAL FOR DRY WIREDRAWING AND PROCESS FOR PRODUCING SAME 审中-公开
标题翻译：用于干线加工的带状润滑材料及其制造方法
公开(公告)号：US20140290320A1
公开(公告)日：2014-10-02
申请号：US14232008
申请日：2012-07-10
申请人： Kazuki Maeda , Hideki Tezuka , Yoshitsugu Okuyama , Atsuchi Maekawa , Shinichi Yano
发明人： Kazuki Maeda , Hideki Tezuka , Yoshitsugu Okuyama , Atsuchi Maekawa , Shinichi Yano
IPC分类号： B21C9/00 , C10M111/04
CPC分类号： B21C9/005 , C10M105/24 , C10M107/04 , C10M111/04 , C10M169/04 , C10M2201/041 , C10M2201/043 , C10M2201/062 , C10M2201/066 , C10M2201/084 , C10M2201/085 , C10M2201/087 , C10M2201/103 , C10M2205/022 , C10M2205/0225 , C10M2205/024 , C10M2205/0245 , C10M2205/043 , C10M2207/0406 , C10M2207/1213 , C10M2207/125 , C10M2207/126 , C10M2209/0625 , C10M2209/0845 , C10M2209/1013 , C10M2209/1023 , C10M2213/023 , C10M2213/0623 , C10M2217/0206 , C10M2217/0265 , C10M2217/0443 , C10M2221/025 , C10N2210/01 , C10N2210/02 , C10N2230/06 , C10N2230/10 , C10N2230/64 , C10N2240/401 , C10N2250/121
摘要： Provided is an innovative belt-shaped lubricating material for dry wiredrawing which not only can be used under severe wiredrawing processing conditions such as those of high temperature/high pressure/high speed as well as conventional powdered or granular lubricants for dry wiredrawing but also can cope with diameter reduction to a wide range of wire diameters ranging from a small diameter to a large diameter and a wide range of linear speeds ranging from a low speed to a high speed, has excellent functionalities such as lubricity, followability, spreadability, adhesiveness, heat resistance, processability, workability, safety, durability and productivity irrespective of a processed shape, is effective in improving work environments and is friendly to the global environment.The belt-shaped lubricating material for dry wiredrawing includes a film containing 10 to 90% by weight of a metal salt of a saturated fatty acid and 10 to 90% by weight of a thermoplastic resin.
摘要翻译：提供了一种用于干式拉丝的创新带状润滑材料，不仅可以在高温/高压/高速等严格的拉丝加工条件下使用，还可以用于干法拉丝的常规粉末或颗粒润滑剂，但也可以应付直径减小到从小直径到大直径以及范围从低速到高速的宽范围的线径的宽范围具有优异的功能性，例如润滑性，随动性，铺展性，粘合性，热阻力，加工性，可加工性，安全性，耐久性和生产率，而不管加工形状如何，在改善工作环境中是有效的，并且对全球环境友好。用于干拉丝的带状润滑材料包括含有10至90重量％的饱和脂肪酸的金属盐和10至90重量％的热塑性树脂的膜。

9. 发明授权

US07010720B2 Data reception system capable of replacing recording medium 有权
标题翻译：能够替换记录介质的数据接收系统
公开(公告)号：US07010720B2
公开(公告)日：2006-03-07
申请号：US10098437
申请日：2002-03-18
申请人： Kazuki Maeda , Hiroshi Yokota , Tatsuro Ikoma
发明人： Kazuki Maeda , Hiroshi Yokota , Tatsuro Ikoma
IPC分类号： G06F11/00
CPC分类号： G06F11/1402
摘要： A reception apparatus records a content distributed from a content distribution apparatus on a hard disk. Following an instruction from a viewer, the reception apparatus reproduces the content. The reception apparatus transmits management information including identification information about the content recorded on the hard disk to a management apparatus. The management apparatus stores the information in a management information storage. When the hard disk of the reception apparatus fails, a replacement hard disk is attached to the management apparatus. The management apparatus retrieves, based on the stored management information, the same content as the content recorded on the hard disk of the reception apparatus from a content distribution apparatus, etc., and records the retrieved content on the replacement hard disk. The hard disk of the reception apparatus is then replaced with the replacement hard disk with the content recorded thereon.
摘要翻译：接收装置将从内容分发装置分发的内容记录在硬盘上。根据观看者的指示，接收装置再现内容。接收装置将包括关于记录在硬盘上的内容的识别信息的管理信息发送到管理装置。管理装置将信息存储在管理信息存储器中。当接收装置的硬盘出现故障时，更换硬盘被安装在管理装置上。管理装置基于所存储的管理信息，从内容分发装置等检索与记录在接收装置的硬盘上的内容相同的内容，并将检索到的内容记录在替换硬盘上。接收装置的硬盘被替换成具有记录内容的替换硬盘。

10. 发明授权

US5204767A Pay-channel transmission system for CATV 失效
标题翻译：有线电视付费频道传输系统
公开(公告)号：US5204767A
公开(公告)日：1993-04-20
申请号：US772486
申请日：1991-10-07
申请人： Hiroaki Nakata , Kuniaki Utsumi , Kazuki Maeda
发明人： Hiroaki Nakata , Kuniaki Utsumi , Kazuki Maeda
IPC分类号： G06F21/10 , H04J14/02 , H04K1/00 , H04N7/16 , H04N7/167 , H04N7/171 , H04N7/22
CPC分类号： H04B10/69 , H04B10/675 , H04J14/0226 , H04J14/0234 , H04J14/0298 , H04N7/16 , H04N7/22 , H04J14/0282
摘要： A pay-channel transmission system for a CATV has an optical transmission unit and an optical receiver unit. The optical transmission unit includes pay-channel television signals optically multiplexed by a .lambda..sub.1 wavelength semiconductor laser and non-pay-channel television signals optically multiplexed by a .lambda..sub.2 wavelength semiconductor laser. The optical receiver unit includes an optical filter for filtering the .lambda..sub.1 wavelength data. Thus, a non-subscriber having the optical filter is prevented from receiving the pay-channel television signals, and a subscriber having no optical filter is able to receive both the pay-channel television signals and non-pay-channel television signals.
摘要翻译：用于CATV的付费频道传输系统具有光传输单元和光接收单元。光传输单元包括通过λ1波长半导体激光器光复用的付费频道电视信号和通过λ2波长半导体激光器光复用的非付费频道电视信号。光接收器单元包括用于滤波λ1波长数据的滤光器。因此，防止具有滤光器的非用户接收付费频道电视信号，并且没有滤光器的用户能够接收付费频道电视信号和非付费频道电视信号两者。

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