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1. 发明授权

US07983326B2 Digital transmission system and its transmission status recognition method 有权
标题翻译：数字传输系统及其传输状态识别方法
公开(公告)号：US07983326B2
公开(公告)日：2011-07-19
申请号：US10889010
申请日：2004-07-13
申请人： Atsushi Miyashita
发明人： Atsushi Miyashita
IPC分类号： H04L5/16
CPC分类号： H04N21/435 , H04N21/235 , H04N21/23614 , H04N21/24 , H04N21/4348 , H04N21/44209 , H04N21/6112
摘要： A digital transmission system of a type in which a digitally-modulated transmission signal is mapped to two-dimensional data and transmitted from at least one relay point, and at a reception side, the two-dimensional data is identified and reproduced into the transmission signal. The system includes first and second memories provided in the relay point for alternately writing and reading transmission signal display information to display a transmission status of the transmission signal, and also includes a display data transmitter for alternately reading and transmitting the transmission signal display information. In the reception side, a display data reception circuit has third and fourth memories for receiving the transmission signal display information and performing write, read and output operations. The circuit alternately reads and outputs the transmission signal display information.
摘要翻译：将数字调制传输信号映射到二维数据并从至少一个中继点发送的类型的数字传输系统，并且在接收侧，二维数据被识别并再现为传输信号。该系统包括设置在中继点中的第一和第二存储器，用于交替地写入和读取发送信号显示信息以显示发送信号的发送状态，并且还包括用于交替地读取和发送发送信号显示信息的显示数据发送器。在接收侧，显示数据接收电路具有用于接收发送信号显示信息并进行写入，读出和输出操作的第三和第四存储器。电路交替地读取并输出发送信号显示信息。

2. 发明授权

US06381251B1 Data transmission apparatus and receiving apparatus using orthogonal frequency division multiplex modulation system 失效
标题翻译：数据传输装置和采用正交频分复用调制方式的接收装置
公开(公告)号：US06381251B1
公开(公告)日：2002-04-30
申请号：US09096454
申请日：1998-06-11
申请人： Seiichi Sano , Toshiyuki Akiyama , Atsushi Miyashita , Nobuo Tsukamoto
发明人： Seiichi Sano , Toshiyuki Akiyama , Atsushi Miyashita , Nobuo Tsukamoto
IPC分类号： H04J100
CPC分类号： H04L27/2662 , H04L27/2602 , H04L27/2675
摘要： A data transmission apparatus of an orthogonal frequency multiplex modulation system wherein data is transmitted using a plurality of carriers which are in a mutually orthogonal relationship with one another. The apparatus includes a transmitter which previously inserts a group of predetermined synchronization symbols into an OFDM modulated transmission signal every fixed period and a receiver which demodulates a received OFDM modulated transmission signal to a baseband OFDM signal. In the receiver, an absolute value of an A/D converted digital signal is taken and the signal is bandwidth-limited to a predetermined band width. Then, it is decided whether an amplitude of the signal is larger than or smaller than a predetermined value and a decision result thereof is produced. A null section in the synchronization symbol group is detected on the basis of the decision result and a start point of another synchronization symbol subsequent to the null section is further detected. The time when both of the presence of the null section and the start point of another synchronization symbol are detected is regarded as a synchronization timing and the operation timing of a demodulator for the receiver is set to the synchronization timing.
摘要翻译：正交频分复用调制系统的数据发送装置，其中使用彼此相互正交的多个载波来发送数据。该装置包括一个发送器，其先前将一组预定的同步符号插入每个固定周期的OFDM调制的传输信号，以及一个接收机，将接收的OFDM调制的传输信号解调为基带OFDM信号。在接收机中，采用A / D转换的数字信号的绝对值，并将信号带宽限制在预定的带宽。然后，确定信号的幅度是否大于或小于预定值，并且产生其判定结果。基于判定结果来检测同步符号组中的零部分，并进一步检测到零部分之后的另一个同步符号的起始点。检测到零段的存在和另一个同步符号的起始点的时间被认为是同步定时，并且用于接收机的解调器的操作定时被设置为同步定时。

3. 发明授权

US06246735B1 Synchronization detection method for data transmission apparatus and data transmission apparatus using the same 有权
标题翻译：数据发送装置的同步检测方法及使用其的数据发送装置
公开(公告)号：US06246735B1
公开(公告)日：2001-06-12
申请号：US09203564
申请日：1998-12-02
申请人： Seiichi Sano , Toshiyuki Akiyama , Atsushi Miyashita , Nobuo Tsukamoto
发明人： Seiichi Sano , Toshiyuki Akiyama , Atsushi Miyashita , Nobuo Tsukamoto
IPC分类号： H04L706
CPC分类号： H04L27/2656 , H04L7/041 , H04L27/2613
摘要： A data transmission apparatus using a digital modulation system wherein a transmitting side inserts a group of predetermined synchronization symbols into a transmission signal at predetermined intervals to be transmitted. A receiving side calculates an electric power value of a received transmission signal. When a no-signal period (null section) in the synchronization symbol group is to be detected and decided from a magnitude of the received signal electric power value, a threshold for reference of decision for detecting the null section is calculated on the basis of an average electric power value for a predetermined period in the received signal electric power value and the threshold calculated in accordance with the received signal level of the transmission signal is used to detect synchronization stably.
摘要翻译：一种使用数字调制系统的数据发送装置，其中发送侧以预定间隔将一组预定同步符号插入到发送信号中以被发送。接收侧计算接收的发送信号的电功率值。当从接收信号电功率值的大小检测并确定同步符号组中的无信号周期（空区间）时，基于使用接收信号电功率值中规定期间的平均电功率值和根据发送信号的接收信号电平计算出的阈值来稳定地检测同步。

4. 发明授权

US4633332A Multi-mode magnetic recording system and multi-mode magnetic recording and playback system for VTR 失效
标题翻译：多模式磁记录系统和VTR多模磁记录播放系统
公开(公告)号：US4633332A
公开(公告)日：1986-12-30
申请号：US567977
申请日：1984-01-04
申请人： Seiji Higurashi , Atsushi Miyashita , Kaoru Kobayashi
发明人： Seiji Higurashi , Atsushi Miyashita , Kaoru Kobayashi
IPC分类号： G11B5/02 , G11B5/008 , G11B5/53 , H04N5/7826 , H04N9/79 , H04N9/802 , H04N5/783
CPC分类号： G11B5/00878 , G11B5/0086 , G11B5/534 , H04N5/78263 , H04N9/7921 , H04N9/802
摘要： A multi-mode recording and playback system for VTR records audio signals and video signals and plays them back from audio tracks and video tracks on a magnetic tape by means of a plurality of rotating audio and video heads. A rotating drum around which a magnetic tape is wound carries therewith first to fourth rotary video heads and first and second rotary audio heads in predetermined relations with respect to angle and vertical level. In a desired mode, the audio heads write (read) audio signals in audio tracks, and the video heads write (read) video signals in video tracks, such that the centers of the audio and video tracks substantially coincide with each other.
摘要翻译：用于VTR的多模式记录和重放系统记录音频信号和视频信号，并通过多个旋转音频和视频磁头从磁带上的音轨和视频轨道中回放它们。卷绕磁带的旋转磁鼓以相对于角度和垂直度的预定关系携带第一到第四旋转视频磁头和第一和第二旋转音频磁头。在期望的模式中，音频头在音频轨道中写入（读取）音频信号，并且视频头在视频轨道中写入（读取）视频信号，使得音频和视频轨道的中心基本上彼此重合。

5. 发明授权

US4355338A Duplicator 失效
标题翻译：复印机
公开(公告)号：US4355338A
公开(公告)日：1982-10-19
申请号：US120676
申请日：1980-02-11
申请人： Tatuo Yamamoto , Yoshio Taguchi , Atsushi Miyashita , Shigeo Todoroki , Susumu Katayama , Menoru Eeda
发明人： Tatuo Yamamoto , Yoshio Taguchi , Atsushi Miyashita , Shigeo Todoroki , Susumu Katayama , Menoru Eeda
IPC分类号： G11B5/86 , G11B20/10 , G11B27/00 , G11B27/024 , G11B27/028 , G11B27/031 , G11B27/034 , G11B27/10
CPC分类号： G11B5/86 , G11B20/10527 , G11B27/002 , G11B27/028 , G11B27/031 , G11B27/034 , G11B27/10 , G11B2220/20 , G11B2220/90 , G11B27/024
摘要： A duplicator in which analog signals recorded on a master or like source tape are transferred to digital discs after conversion into digital form and the digital signals thus recorded on the digital discs are then transferred to slave tapes after reconversion into analog form.
摘要翻译：其中记录在主盘或类似源磁带上的模拟信号在转换成数字形式之后被传送到数字盘，并且由此记录在数字盘上的数字信号在重新转换成模拟形式之后被传送到从属磁带。

6. 发明授权

US07492792B2 Apparatus for receiving digital data 失效
标题翻译：用于接收数字数据的装置
公开(公告)号：US07492792B2
公开(公告)日：2009-02-17
申请号：US11071179
申请日：2005-03-04
申请人： Seiichi Sano , Atsushi Miyashita
发明人： Seiichi Sano , Atsushi Miyashita
IPC分类号： H04J3/06
CPC分类号： H04H20/10 , H04N5/268
摘要： An apparatus for receiving digital data includes a memory unit for temporarily storing therein a plurality of data streams, each of which includes data and clock obtained by demodulating plural redundant signals received in each receiver in response to a signal generated based on each clock; a writing control unit for controlling a writing of the plurality of the data streams into the memory unit; a data reading control unit for reading the data streams stored temporarily in the memory unit in a synchronized manner; and a selection unit for selecting one of the read data streams to output the selected data stream. The writing control unit detects a synchronization packet included in the plurality of data streams to control the writing of the plurality of data streams into the memory unit based on the synchronization packet.
摘要翻译：一种用于接收数字数据的装置包括一个用于临时存储多个数据流的存储器单元，每个数据流包括响应于基于每个时钟产生的信号来解调在每个接收机中接收的多个冗余信号而获得的数据和时钟; 写入控制单元，用于控制多个数据流的写入到存储单元中; 数据读取控制单元，用于以同步的方式读取临时存储在存储器单元中的数据流; 以及选择单元，用于选择所读取的数据流之一以输出所选择的数据流。写入控制单元检测包括在多个数据流中的同步分组，以基于同步分组来控制多个数据流的写入到存储器单元中。

7. 发明授权

US07412306B2 Thermal management of a personal computing apparatus 有权
标题翻译：个人计算机的热管理
公开(公告)号：US07412306B2
公开(公告)日：2008-08-12
申请号：US11032726
申请日：2005-01-11
申请人： Takayuki Katoh , Atsushi Miyashita , Mitsuhiro Yamazaki , Hiroyuki Uchida , Susumu Shimotono , Mizuho Tadokoro
发明人： Takayuki Katoh , Atsushi Miyashita , Mitsuhiro Yamazaki , Hiroyuki Uchida , Susumu Shimotono , Mizuho Tadokoro
IPC分类号： G05D23/00
CPC分类号： G05D23/1919
摘要： A method and system are provided for thermal management of a portable computing apparatus. Accelerometers are provided to detect changes in attitude, and temperature sensors are provided to detect changes in temperature. A fan is used to cool the internal temperature of the electronic components of the computer. In response to lift of the computer from a stationary surface, the computer may transition to an alternative state of operation. The transition may include the change of the speed of the fan and/or adjustment of the processor clock.
摘要翻译：提供了一种用于便携式计算设备的热管理的方法和系统。提供加速度计来检测姿态变化，提供温度传感器来检测温度变化。风扇用于冷却计算机电子部件的内部温度。响应于计算机从固定表面升起，计算机可以转换到替代的操作状态。该转换可以包括风扇速度的变化和/或处理器时钟的调整。

8. 发明授权

US06611493B1 Communication, transmission and receiving method and apparatus using orthogonal frequency division multiplexing modulation system 失效
标题翻译：采用正交频分复用调制方式的通信，收发方式及装置
公开(公告)号：US06611493B1
公开(公告)日：2003-08-26
申请号：US09236601
申请日：1999-01-26
申请人： Atsushi Miyashita , Toshiyuki Akiyama , Seiichi Sano , Hiroyuki Takesue , Tatuhiro Nakada , Nobuo Tsukamoto
发明人： Atsushi Miyashita , Toshiyuki Akiyama , Seiichi Sano , Hiroyuki Takesue , Tatuhiro Nakada , Nobuo Tsukamoto
IPC分类号： H04J1100
CPC分类号： H04L27/2608
摘要： A communication method in an orthogonal frequency division multiplexing modulation communication system includes a transmission apparatus in which a frequency bandwidth of a signal modulated in accordance with an orthogonal frequency division multiplexing modulation system is changed and the modulated signal is transmitted and a receiving apparatus in which the modulated signal is received and a frequency bandwidth for demodulation of the received signal is changed to follow the change of the frequency bandwidth of the modulated signal.
摘要翻译：正交频分复用调制通信系统中的通信方法包括：发送装置，其中根据正交频分复用调制方式调制的信号的频率带宽被改变，并且调制信号被发送;以及接收装置，其中，接收到调制信号，并且改变接收信号的解调频率带宽以跟随调制信号的频率带宽的变化。

9. 发明申请

US20050190830A1 Digital signal transmission system and method of displaying transmission condition in digital signal transmission system 有权
标题翻译：数字信号传输系统及其在数字信号传输系统中显示传输条件的方法
公开(公告)号：US20050190830A1
公开(公告)日：2005-09-01
申请号：US11103621
申请日：2005-04-12
申请人： Atsushi Miyashita , Yoshikatsu Wagatsuma , Hiroyuki Takesue
发明人： Atsushi Miyashita , Yoshikatsu Wagatsuma , Hiroyuki Takesue
IPC分类号： H04B17/00 , H04L1/24 , H04Q1/20
CPC分类号： H04L1/24 , H04B17/23 , H04B17/309 , H04B17/327
摘要： A digital signal transmission system using a digital modulation system comprising a digital signal transmitter having a first digital signal processing unit and a digital signal receiver receiving a digital signal from the transmitter, wherein the digital signal receiver comprising a second digital signal processing unit for processing the digital signal from the transmitter and outputting a digital demodulated signal and a correlation value signal, a signal converter coupled with the second digital signal processing unit and supplied the correlation value signal therefrom for generating a waveform indicating a transmission condition including a main wave in response to the correlation value signal, and a display coupled with the signal converter for displaying the waveform indicating a transmission condition in the digital transmission system.
摘要翻译：一种使用数字调制系统的数字信号传输系统，包括具有第一数字信号处理单元和数字信号接收器的数字信号发射器，数字信号处理单元和数字信号接收器从发射机接收数字信号，其中数字信号接收机包括第二数字信号处理单元，数字信号，并输出数字解调信号和相关值信号，信号转换器与第二数字信号处理单元耦合并提供相关值信号，以产生响应于相关值信号和与信号转换器耦合的显示器，用于在数字传输系统中显示指示传输条件的波形。

10. 发明授权

US06912247B2 Digital signal transmission system and method of displaying transmission condition in digital signal transmission system 失效
公开(公告)号：US06912247B2
公开(公告)日：2005-06-28
申请号：US09814133
申请日：2001-03-22
申请人： Atsushi Miyashita , Yoshikatsu Wagatsuma , Hiroyuki Takesue
发明人： Atsushi Miyashita , Yoshikatsu Wagatsuma , Hiroyuki Takesue
IPC分类号： H04B17/00 , H04L1/24 , H04L1/00
CPC分类号： H04L1/24 , H04B17/23 , H04B17/309 , H04B17/327
摘要： A digital signal transmission system using a digital modulation system comprising a digital signal transmitter having a first digital signal processing unit and a digital signal receiver receiving a digital signal from the transmitter, wherein the digital signal receiver comprising a second digital signal processing unit for processing the digital signal from the transmitter and outputting a digital demodulated signal and a correlation value signal, a signal converter coupled with the second digital signal processing unit and supplied the correlation value signal therefrom for generating a waveform indicating a transmission condition including a main wave in response to the correlation value signal, and a display coupled with the signal converter for displaying the waveform indicating a transmission condition in the digital transmission system.

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