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1. 发明授权

US06831341B2 Photocathode having AlGaN layer with specified Mg content concentration 失效
标题翻译：具有特定Mg含量浓度的AlGaN层的光电阴极
公开(公告)号：US06831341B2
公开(公告)日：2004-12-14
申请号：US10416703
申请日：2003-05-14
申请人： Hirofumi Kan , Minoru Niigaki , Masashi Ohta , Yasufumi Takagi , Shoichi Uchiyama
发明人： Hirofumi Kan , Minoru Niigaki , Masashi Ohta , Yasufumi Takagi , Shoichi Uchiyama
IPC分类号： H01J134
CPC分类号： H01J31/507 , H01J1/34 , H01J40/06 , H01J43/08 , H01J2231/50021
摘要： Ultraviolet light incident from the side of a surface layer 5 passes through the surface layer 5 to reach an optical absorption layer 4. Light which reaches the optical absorption layer 4 is absorbed within the optical absorption layer 4, and photoelectrons are generated within the optical absorption layer 4. Photoelectrons diffuse within the optical absorption layer 4, and reach the interface between the optical absorption layer 4 and the surface layer 5. Because the energy band is curved in the vicinity of the interface between the optical absorption layer 4 and surface layer 5, the energy of the photoelectrons is larger than the electron affinity in the surface layer 5, and so photoelectrons are easily ejected to the outside. Here, the optical absorption layer 4 is formed from an Al0.3Ga0.7N layer with an Mg content concentration of not less than 2×1019 cm−3 but not more than 1×1020 cm−3, so that a solar-blind type semiconductor photocathode 1 with high quantum efficiency is obtained.
摘要翻译：从表面层5侧入射的紫外光通过表层5到达光吸收层4.到达光吸收层4的光被吸收在光吸收层4内，并且在光吸收中产生光电子光电子在光吸收层4内扩散，并到达光吸收层4和表面层5之间的界面。因为能带在光吸收层4和表面层5之间的界面附近弯曲，光电子的能量大于表面层5中的电子亲和力，因此光电子容易被排出到外部。这里，光吸收层4由Mg含量浓度不小于2×10 19 cm -3但不大于1×10 20 cm -3的Al 0.3 Ga 0.7 N层形成，因此得到具有高量子效率的太阳能型半导体光电阴极1。

2. 发明申请

US20050045866A1 Photocathode having A1GaN layer with specified Mg content concentration 审中-公开
标题翻译：具有规定Mg含量浓度的AlGaN层的光电阴极
公开(公告)号：US20050045866A1
公开(公告)日：2005-03-03
申请号：US10961142
申请日：2004-10-12
申请人： Hirofumi Kan , Minoru Niigaki , Masashi Ohta , Yasufumi Takagi , Shoichi Uchiyama
发明人： Hirofumi Kan , Minoru Niigaki , Masashi Ohta , Yasufumi Takagi , Shoichi Uchiyama
IPC分类号： H01J1/34 , H01J29/38 , H01J31/50 , H01J40/06 , H01J43/08 , H01L29/06
CPC分类号： H01J31/507 , H01J1/34 , H01J40/06 , H01J43/08 , H01J2231/50021
摘要： Ultraviolet light incident from the side of a surface layer 5 passes through the surface layer 5 to reach an optical absorption layer 4. Light which reaches the optical absorption layer 4 is absorbed within the optical absorption layer 4, and photoelectrons are generated within the optical absorption layer 4. Photoelectrons diffuse within the optical absorption layer 4, and reach the interface between the optical absorption layer 4 and the surface layer 5. Because the energy band is curved in the vicinity of the interface between the optical absorption layer 4 and surface layer 5, the energy of the photoelectrons is larger than the electron affinity in the surface layer 5, and so photoelectrons are easily ejected to the outside. Here, the optical absorption layer 4 is formed from an Al0.3Ga0.7N layer with an Mg content concentration of not less than 2×1019 cm−3 but not more than 1×1020 cm−3, so that a solar-blind type semiconductor photocathode 1 with high quantum efficiency is obtained.
摘要翻译：从表面层5侧入射的紫外光通过表层5到达光吸收层4.到达光吸收层4的光被吸收在光吸收层4内，并且在光吸收中产生光电子光电子在光吸收层4内扩散，并到达光吸收层4和表面层5之间的界面。因为能带在光吸收层4和表面层5之间的界面附近弯曲，光电子的能量大于表面层5中的电子亲和力，因此光电子容易被排出到外部。这里，光吸收层4由Mg含量浓度不小于2×10 19 cm -3但不大于1×10 20 cm -3的Al 0.3 Ga 0.7 N层形成，因此得到具有高量子效率的太阳能型半导体光电阴极1。

3. 发明授权

US4605600A Transparent GaAs photoelectric layer 失效
标题翻译：透明GaAs光电层
公开(公告)号：US4605600A
公开(公告)日：1986-08-12
申请号：US729160
申请日：1985-04-30
申请人： Minoru Niigaki , Tokuaki Nihashi , Masashi Ohta
发明人： Minoru Niigaki , Tokuaki Nihashi , Masashi Ohta
IPC分类号： H01L31/0264 , H01J29/45 , H01L31/0304 , H01L31/18 , B32B9/00
CPC分类号： H01L31/03046 , H01J29/456 , H01L31/1844 , Y02E10/544 , Y10T428/12528
摘要： Disclosed is a new type of transparent GaAs photo electric layer formed on an optical window made of a GaP single crystal substrate via an Al.sub.x Ga.sub.(1-x) As buffer layer, in which a gradual-lattice-constant layer of quadruple Al.sub.x Ga.sub.(1-x) PyAs.sub.(1-y) compound crystal is formed between the GaP single crystal substrate and the Al.sub.x Ga.sub.(1-x) As buffer layer. The y content in the gradual-lattice-constant layer of quadruple Al.sub.x Ga.sub.(1-x) PyAs.sub.(1-y) compound crystal changes from 1 to 0 as deposition of the gradual-lattice-constant layer of quadruple Al.sub.x Ga.sub.(1-x) PyAs.sub.(1-y) compound crystal goes on while the x content can arbitrarily be selected in the range of 0 to 1.
摘要翻译：公开了一种通过Al x Ga（1-x）As缓冲层形成在由GaP单晶衬底制成的光学窗口上的新型透明GaAs光电层，其中四阶Al x Ga（1-x）As的渐变晶格常数层 x）在GaP单晶衬底和Al x Ga（1-x）As缓冲层之间形成PyAs（1-y）复合晶体。四倍AlxGa（1-x）PyAs（1-y）复合晶体的渐变晶格常数层中的y含量从1变为0，因为四倍AlxGa（1-x）的渐变晶格常数层的沉积 PyAs（1-y）复合晶体继续进行，而x含量可以任意选择在0至1的范围内。

4. 发明申请

US20080086313A1 Signal processing apparatus, signal processing method, and computer program 失效
标题翻译：信号处理装置，信号处理方法和计算机程序
公开(公告)号：US20080086313A1
公开(公告)日：2008-04-10
申请号：US11904023
申请日：2007-09-25
申请人： Mitsunori Tanaka , Mamoru Tanaka , Makoto Mitsuno , Masashi Ohta
发明人： Mitsunori Tanaka , Mamoru Tanaka , Makoto Mitsuno , Masashi Ohta
IPC分类号： G10L19/00
CPC分类号： G10L19/173
摘要： A signal processing apparatus may include a decoder that decodes a compressed audio stream encoded by a predetermined codec, a signal processing unit that applies predetermined signal processing to an audio stream obtained by decoding the compressed audio stream with the decoder, a first acquisition unit that acquires at least one of information described in a header of the compressed audio stream and management information for contents including the compressed audio stream, a setting unit that discriminates, on the basis of the information, a type of the codec used for the encode of the compressed audio stream and sets a codec used for encode of the audio stream, and an encoder that encodes, in accordance with the setting by the setting unit, the audio stream subjected to the signal processing by the signal processing unit and outputs the audio stream to an external apparatus that has a decoder.
摘要翻译：信号处理装置可以包括解码器，其对由预定编解码器编码的压缩音频流进行解码;信号处理单元，对通过解码器对压缩音频流进行解码而获得的音频流应用预定的信号处理;第一获取单元，在压缩音频流的标题中描述的信息和包括压缩音频流的内容的管理信息中的至少一个信息，设置单元，其基于该信息鉴别用于编码压缩的音频流的编解码器的类型音频流并且设置用于音频流的编码的编解码器，以及编码器，其根据设置单元的设置对经过信号处理单元的信号处理的音频流进行编码，并将音频流输出到具有解码器的外部设备。

5. 发明授权

US07133593B2 Signal reproducing method & apparatus, signal recording/reproducing method and apparatus and signal recording medium 失效
标题翻译：信号再现方法和装置，信号记录/再现方法和装置以及信号记录介质
公开(公告)号：US07133593B2
公开(公告)日：2006-11-07
申请号：US11085649
申请日：2005-03-21
申请人： Takao Takahashi , Masashi Ohta , Toshiya Akiba , Masami Tomita , Taro Suito
发明人： Takao Takahashi , Masashi Ohta , Toshiya Akiba , Masami Tomita , Taro Suito
IPC分类号： H04N5/93
CPC分类号： H04N9/8045 , G11B20/10527 , G11B27/032 , G11B27/034 , G11B27/036 , G11B27/105 , G11B27/11 , G11B27/329 , G11B2020/10592 , G11B2020/10916 , G11B2220/20 , G11B2220/216 , G11B2220/2525 , G11B2220/65 , G11B2220/90 , H04N5/783
摘要： By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
摘要翻译：通过减少用于从记录介质播放信号的操作中的寻道操作次数，临时存储在信号记录/重放装置中使用的读缓冲存储器中的数据量足够大以作为重放信号被输出搜索操作，允许执行连续播放操作。为了减少搜索操作的数量，信号总是被记录在连续空闲区域中的记录介质上，每个区域的大小等于或大于通常设置为1分钟的预定记录/重放时间长度。如果需要将具有小于预定记录/重放时间长度的长度的附加信号插入到已经被现有信号占据的区域中的插入点中，则具有等于或大于预定记录/重放时间长度的尺寸的连续空闲区域记录/播放时间长度被新分配给附加信号。然后将附加信号记录在空闲区域中，而不是插入插入点。由于空闲区域的尺寸大于附加信号的长度，所以剩余的空闲区域被填充有与插入点相邻的现有信号的一部分。

6. 发明授权

US07092619B2 Signal recording method & apparatus, signal recording / reproducing method & apparatus and signal recording medium 失效
公开(公告)号：US07092619B2
公开(公告)日：2006-08-15
申请号：US11085348
申请日：2005-03-21
申请人： Takao Takahashi , Masashi Ohta , Toshiya Akiba , Masami Tomita , Taro Suito
发明人： Takao Takahashi , Masashi Ohta , Toshiya Akiba , Masami Tomita , Taro Suito
IPC分类号： H04N7/26
CPC分类号： H04N9/8045 , G11B20/10527 , G11B27/032 , G11B27/034 , G11B27/036 , G11B27/105 , G11B27/11 , G11B27/329 , G11B2020/10592 , G11B2020/10916 , G11B2220/20 , G11B2220/216 , G11B2220/2525 , G11B2220/65 , G11B2220/90 , H04N5/783
摘要： By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.

7. 发明授权

US06847776B2 Signal record/playback apparatus and method featuring independent recording and playback processing 失效
标题翻译：具有独立记录和回放处理功能的信号记录/播放装置和方法
公开(公告)号：US06847776B2
公开(公告)日：2005-01-25
申请号：US09262366
申请日：1999-03-04
申请人： Masami Tomita , Takao Takahashi , Masashi Ohta , Hiroshi Kobayashi , Toshiya Akiba , Noboru Murabayashi , Toshimichi Hamada , Taro Suito , Katsunari Miyata , Koichi Chotoku
发明人： Masami Tomita , Takao Takahashi , Masashi Ohta , Hiroshi Kobayashi , Toshiya Akiba , Noboru Murabayashi , Toshimichi Hamada , Taro Suito , Katsunari Miyata , Koichi Chotoku
IPC分类号： H04N5/91 , G11B27/034 , G11B27/04 , G11B27/10 , G11B27/11 , G11B27/32 , G11B27/34 , H04N5/76 , H04N5/783 , H04N5/85 , H04N5/93 , H04N9/804 , H04N5/781
CPC分类号： H04N5/76 , G11B27/034 , G11B27/105 , G11B27/11 , G11B27/329 , G11B27/34 , G11B2220/20 , G11B2220/2525 , G11B2220/65 , H04N5/783 , H04N5/85 , H04N9/8042
摘要： In a signal record/playback apparatus and its method which performs the recording for recording a signal on the recording medium DISK and the playback for playing back the recorded signal from the recording medium DISK at the same time, the recording position and the playback position are set independently and arbitrarily. Record starting position information PREC on the recording medium DISK for starting the recording is stored, playback starting position information PPB on the recording medium DISK for starting the playback is stored, and the recording based on the record starting position information PREC and the playback based on the playback starting position information PPB are independently performed, so as to realize a signal record/playback apparatus and its method which can set the record starting position PREC and the playback starting position PPB arbitrarily.
摘要翻译：在记录介质DISK上记录信号的记录信号记录再现装置及其记录介质DISK再现记录信号的再现方法中，记录位置和重放位置为独立设置。存储用于开始记录的记录介质DISK上的记录开始位置信息PREC，存储用于开始重放的记录介质DISK上的重放开始位置信息PPB，并且基于记录开始位置信息PREC和基于独立地执行重放开始位置信息PPB，以便实现可以任意地设置记录开始位置PREC和重放开始位置PPB的信号记录/重放装置及其方法。

8. 发明授权

US06757484B2 Data recording/reproducing device 失效
标题翻译：数据记录/再现装置
公开(公告)号：US06757484B2
公开(公告)日：2004-06-29
申请号：US09812167
申请日：2001-03-19
申请人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
发明人： Hajime Nitta , Toshimichi Hamada , Masashi Ohta , Kiyoshi Ota
IPC分类号： H04N591
CPC分类号： H04N9/8042 , H04N5/781 , H04N9/7921 , H04N9/8063
摘要： A system for recording an input video signal input to an A/D conversion processing section on a recording medium in accordance with a recording clock generated by a recording system synchronous control section, and for outputting the video signal recorded on the recording medium to outside in accordance with a reproducing system synchronous control section. When switching and outputting a recording video signal input to the A/D conversion processing section and a reproduction video signal recorded on the recording medium and then decoded and output by an MPEG AV decoder, the recording video signal is temporarily stored in a frame synchronizer, and the recording video signal stored in the frame synchronizer and the reproduction video signal decoded by the MPEG AV decoder are switched and output in accordance with a reproduction clock generated by the reproducing system synchronous control section.
摘要翻译：一种用于根据由记录系统同步控制部产生的记录时钟将输入到A / D转换处理部分的输入视频信号记录在记录介质上并将记录在记录介质上的视频信号输出到外部的系统符合再现系统同步控制部分。当切换和输出输入到A / D转换处理部分的记录视频信号和记录在记录介质上的再现视频信号，然后由MPEG AV解码器解码和输出时，记录视频信号被临时存储在帧同步器中，并且存储在帧同步器中的记录视频信号和由MPEG AV解码器解码的再现视频信号根据由再现系统同步控制部分生成的再现时钟被切换和输出。

9. 发明授权

US06449423B1 Recording and playback apparatus for continuous playback of fragmented signals 有权
标题翻译：用于连续播放分段信号的记录和播放装置
公开(公告)号：US06449423B1
公开(公告)日：2002-09-10
申请号：US09547255
申请日：2000-04-11
申请人： Takao Takahashi , Masashi Ohta , Toshiya Akiba , Masami Tomita , Taro Suito
发明人： Takao Takahashi , Masashi Ohta , Toshiya Akiba , Masami Tomita , Taro Suito
IPC分类号： H04N576
CPC分类号： H04N9/8045 , G11B20/10527 , G11B27/032 , G11B27/034 , G11B27/036 , G11B27/105 , G11B27/11 , G11B27/329 , G11B2020/10592 , G11B2020/10916 , G11B2220/20 , G11B2220/216 , G11B2220/2525 , G11B2220/65 , G11B2220/90 , H04N5/783
摘要： By reducing the number of seek operations in an operation to play back a signal from a recording medium, the amount of data temporarily stored in a read buffer memory employed in a signal recording/playback apparatus is large enough to be output as a playback signal during a seek operation, allowing a continuous playback operation to be carried out. In order to reduce the number of seek operations, a signal is always recorded onto the recording medium in continuous free areas each having a size equal to or larger than a predetermined recording/playback time length which is typically set at 1 minute. If it is necessary to insert an additional signal having a length smaller than the predetermined recording/playback time length into a point of insertion in an area already occupied by an existing signal, a continuous free area with a size equal to or larger than the predetermined recording/playback time length is newly allocated to the additional signal. The additional signal is then recorded in the free area instead of being inserted into the point of insertion. Since the free area is larger in size than the length of the additional signal, the rest of the free area is filled up with a portion of the existing signal adjacent to the point of insertion.
摘要翻译：通过减少用于从记录介质播放信号的操作中的寻道操作次数，临时存储在信号记录/重放装置中使用的读缓冲存储器中的数据量足够大以作为重放信号被输出搜索操作，允许执行连续播放操作。为了减少搜索操作的数量，信号总是被记录在连续空闲区域中的记录介质上，每个区域的大小等于或大于通常设置为1分钟的预定记录/重放时间长度。如果需要将具有小于预定记录/重放时间长度的长度的附加信号插入到已经被现有信号占据的区域中的插入点中，则具有等于或大于预定记录/重放时间长度的尺寸的连续空闲区域记录/播放时间长度被新分配给附加信号。然后将附加信号记录在空闲区域中，而不是插入插入点。由于空闲区域的尺寸大于附加信号的长度，所以剩余的空闲区域被填充有与插入点相邻的现有信号的一部分。

10. 发明授权

US06285818B1 Commercial detection which detects a scene change in a video signal and the time interval of scene change points 失效
标题翻译：检测视频信号中的场景变化的商业检测和场景变化点的时间间隔
公开(公告)号：US06285818B1
公开(公告)日：2001-09-04
申请号：US09014281
申请日：1998-01-27
申请人： Taro Suito , Takao Takahashi , Masashi Ohta , Toshiya Akiba , Noboru Murabayashi , Naohisa Arai , Masami Tomita
发明人： Taro Suito , Takao Takahashi , Masashi Ohta , Toshiya Akiba , Noboru Murabayashi , Naohisa Arai , Masami Tomita
IPC分类号： H04N516
CPC分类号： H04N21/4394 , G11B27/22 , G11B27/28 , G11B2220/20 , G11B2220/218 , G11B2220/2525 , G11B2220/2545 , G11B2220/90 , H04N5/147 , H04N5/60 , H04N5/781 , H04N5/85 , H04N7/16 , H04N19/142 , H04N19/179 , H04N19/87 , H04N21/44008 , H04N21/4542 , H04N21/812 , Y10S358/908
摘要： A commercial detector includes a soundless section detecting circuit which detects a soundless section of an audio signal SA and a scene change detecting circuit which detects a scene change point of an image from a video signal SV during the soundless section detected by the soundless section detecting circuit. A commercial section detecting circuit detects whether a time interval of the scene change points detected by the scene change detecting circuit agrees with a predetermined rule. A tuner detects a sound multiplexing mode SSA of an audio signal received.
摘要翻译：商业检测器包括：无声部分检测电路，其检测音频信号SA的无声部分;以及场景变化检测电路，其在由无声部分检测电路检测到的无声部分期间检测来自视频信号SV的图像的场景变化点。商业部分检测电路检测场景变化检测电路检测到的场景变化点的时间间隔是否与预定规则一致。调谐器检测接收到的音频信号的声音复用模式SSA。

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