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1. 发明申请

US20110064149A1 DATA TRANSMITTER AND DATA RECEIVER 有权
标题翻译：数据发送器和数据接收器
公开(公告)号：US20110064149A1
公开(公告)日：2011-03-17
申请号：US12949112
申请日：2010-11-18
申请人： Naoki EJIMA
发明人： Naoki EJIMA
IPC分类号： H04N11/02
CPC分类号： H04H20/28 , H04N5/04 , H04N5/126 , H04N5/602 , H04N7/083 , H04N9/641 , H04N21/4305 , H04N21/43632
摘要： As shown in FIG. 7, a data receiver receives video data and audio data together with a frequency division parameter N that depends on the pixel clock of the video data and the sampling frequency of the audio data, and a count value CTS that is obtained by counting the period of the audio clock that has been subjected to frequency division by the frequency division parameter N, with the pixel clock, which are transmitted from a data transmitter, and subjects the pixel clock to frequency division by the count value CTS, phase-control the divided clock (s501) in accordance with a phase comparison clock (s505) that is obtained by dividing an audio clock (s403) oscillated from a VCO (504) by the frequency division parameter N, thereby generating an audio clock (s403).Accordingly, the data transmitter and the data receiver can satisfactorily implement multiplexing of audio data and video data, and transmission of the multiplexed data using an existing DVI cable, with a simple structure.
摘要翻译：如图所示。如图7所示，数据接收器接收视频数据和音频数据以及取决于视频数据的像素时钟和音频数据的采样频率的分频参数N，以及计数值CTS，其通过计数通过分频参数N对从数据发送器发送的像素时钟进行了分频的音频时钟，并使像素时钟进行分频计数值CTS，对分频时钟进行相位控制（s501），根据通过将从VCO（504）振荡的音频时钟（s403）除以分频参数N而获得的相位比较时钟（s505），从而生成音频时钟（s403）。因此，数据发送器和数据接收器可以以简单的结构令人满意地实现音频数据和视频数据的多路复用以及使用现有的DVI电缆传输多路复用数据。

2. 发明授权

US07855751B2 Data transmission device and data reception device 有权
标题翻译：数据传输设备和数据接收设备
公开(公告)号：US07855751B2
公开(公告)日：2010-12-21
申请号：US10485769
申请日：2003-06-12
申请人： Naoki Ejima
发明人： Naoki Ejima
IPC分类号： H04N7/12
CPC分类号： H04H20/28 , H04N5/04 , H04N5/126 , H04N5/602 , H04N7/083 , H04N9/641 , H04N21/4305 , H04N21/43632
摘要： As shown in FIG. 7, a data receiver receives video data and audio data together with a frequency division parameter N that depends on the pixel clock of the video data and the sampling frequency of the audio data, and a count value CTS that is obtained by counting the period of the audio clock that has been subjected to frequency division by the frequency division parameter N, with the pixel clock, which are transmitted from a data transmitter, and subjects the pixel clock to frequency division by the count value CTS, phase-control the divided clock (s501) in accordance with a phase comparison clock (s505) that is obtained by dividing an audio clock (s403) oscillated from a VCO (504) by the frequency division parameter N, thereby generating an audio clock (s403).Accordingly, the data transmitter and the data receiver can satisfactorily implement multiplexing of audio data and video data, and transmission of the multiplexed data using an existing DVI cable, with a simple structure.
摘要翻译：如图所示。如图7所示，数据接收器接收视频数据和音频数据以及取决于视频数据的像素时钟和音频数据的采样频率的分频参数N，以及计数值CTS，其通过计数通过分频参数N对从数据发送器发送的像素时钟进行了分频的音频时钟，并使像素时钟进行分频计数值CTS，对分频时钟进行相位控制（s501），根据通过将从VCO（504）振荡的音频时钟（s403）除以分频参数N而获得的相位比较时钟（s505），从而生成音频时钟（s403）。因此，数据发送器和数据接收器可以以简单的结构令人满意地实现音频数据和视频数据的多路复用以及使用现有的DVI电缆传输多路复用数据。

3. 发明授权

US07356150B2 Method and apparatus for extending band of audio signal using noise signal generator 失效
标题翻译：使用噪声信号发生器扩展音频信号频带的方法和装置
公开(公告)号：US07356150B2
公开(公告)日：2008-04-08
申请号：US10566131
申请日：2004-07-23
申请人： Naoki Ejima , Kazuya Iwata
发明人： Naoki Ejima , Kazuya Iwata
IPC分类号： H03G3/00
CPC分类号： G10L21/038
摘要： A bandpass filter bandpass-filters an inputted signal X to pass therethrough a partial band of a band of the inputted signal X, and a level correlated white noise generator circuit generates a white noise signal having a level changing according to a level of the inputted signal and correlated to the inputted signal. A signal processing circuit executes a signal processing that includes a predetermined bandpass filtering processing, an echo adding processing, and a level adjustment processing, and that multiplies the inputted white noise signal by a predetermined transfer function, and outputs a processed white noise signal to an adder. The adder adds up the white noise signal from the signal processing circuit and the inputted signal X, and outputs a band-extended signal having an addition result, as an outputted signal.
摘要翻译：带通滤波器对输入信号X进行带通滤波，以通过输入信号X的频带的部分频带，并且电平相关白噪声发生器电路产生具有根据输入信号的电平而变化的电平的白噪声信号并与输入的信号相关联。信号处理电路执行包括预定带通滤波处理，回波加法处理和电平调整处理的信号处理，并且将输入的白噪声信号乘以预定的传递函数，并将经处理的白噪声信号输出到加法器。加法器将来自信号处理电路和输入信号X的白噪声信号相加，并输出具有相加结果的带扩展信号作为输出信号。

4. 发明授权

US07230650B2 Data transmission method, data receiving method, video data transmission apparatus and video data receiving apparatus 有权
标题翻译：数据传输方法，数据接收方法，视频数据传输装置和视频数据接收装置
公开(公告)号：US07230650B2
公开(公告)日：2007-06-12
申请号：US10239679
申请日：2002-01-28
申请人： Hiroshige Okamoto , Tetsuya Hiroe , Sho Murakoshi , Naoki Ejima , Toshiroh Nishio , Akihisa Kawamura , Hidekazu Suzuki
发明人： Hiroshige Okamoto , Tetsuya Hiroe , Sho Murakoshi , Naoki Ejima , Toshiroh Nishio , Akihisa Kawamura , Hidekazu Suzuki
IPC分类号： H04N7/08
CPC分类号： H04N7/088 , H04L1/0065 , H04L1/08 , H04L25/4908 , H04L2001/0096 , H04N5/4401 , H04N5/66 , H04N7/083 , H04N9/30 , H04N11/042
摘要： The present invention is relative to a video signal transmitting/receiving system in which digital video signals are transmitted from a transmitter (30) to a receiver (50) using a line (9) as a transmission channel. The transmitter (30) converts the video signals to be transmitted to a bit string longer in data length than a pixel making up the video signals, allocates a plural number of the bit strings to a blanking period during which pixel data in the pixel string is not transmitted and, using these bit strings, transmits the same superposed data a plural number of times. The receiver (50) extracts the specified bit strings indicating the blanking period from the received data and performs majority processing on the results of demodulation of the extracted bit strings to decide on output data. This reduces errors in reception of supplementary data to simplify the circuit structure as well as to ameliorate the error rate.
摘要翻译：本发明是相对于视频信号发送/接收系统，其中使用线路（9）作为传输信道将数字视频信号从发射机（30）发射到接收机（50）。发送器（30）将要发送的视频信号转换为比构成视频信号的像素长的数据长度的比特串，将多个比特串分配到消隐期间，在该消隐期间，像素串中的像素数据为不发送，并且使用这些位串将相同的叠加数据多次发送。接收机（50）从接收到的数据中提取指示消隐期间的指定位串，并对所提取的位串的解调结果执行多数处理，以决定输出数据。这减少了接收补充数据时的错误，以简化电路结构以及改善错误率。

5. 发明申请

US20060107183A1 Error-correction coding method, error-correction decoding method, error-correction coding apparatus, and error-correction decoding apparatus 有权
标题翻译：纠错编码方法，纠错解码方法，纠错编码装置和纠错解码装置
公开(公告)号：US20060107183A1
公开(公告)日：2006-05-18
申请号：US11305026
申请日：2005-12-19
申请人： Naoki Ejima , Toshiroh Nishio , Akihisa Kawamura , Hidekazu Suzuki , Hiroshige Okamoto , Tetsuya Hiroe , Sho Murakoshi
发明人： Naoki Ejima , Toshiroh Nishio , Akihisa Kawamura , Hidekazu Suzuki , Hiroshige Okamoto , Tetsuya Hiroe , Sho Murakoshi
IPC分类号： H03M13/00
CPC分类号： G11B20/1866 , H03M13/2707 , H03M13/31 , H04L1/0041 , H04L1/0045 , H04L1/0071 , H04N21/43632
摘要： An error-correction coding method and an error-correction decoding method utilize error detection and error correction for an audio signal when a video signal and the audio signal are multiplexed and transmitted by a DVI. After an error correction code is added to each sample of the digital audio signal, n continuous (n: integer equal to or larger than 2) pieces of the samples of the digital audio signal, to which error correction codes are added, are interleaved to generate a coded audio signal.
摘要翻译：当视频信号和音频信号被DVI复用和发送时，纠错编码方法和纠错解码方法利用音频信号的错误检测和纠错。在对数字音频信号的每个采样添加了纠错码之后，添加了纠错码的数字音频信号的n个连续（等于或大于2的整数）个样本被交织到生成编码音频信号。

6. 发明授权

US06904403B1 Audio transmitting apparatus and audio receiving apparatus 失效
标题翻译：音频发送装置和音频接收装置
公开(公告)号：US06904403B1
公开(公告)日：2005-06-07
申请号：US09667666
申请日：2000-09-22
申请人： Kenji Muraki , Keiko Tanaka , Naoki Ejima , Yasushi Nakajima
发明人： Kenji Muraki , Keiko Tanaka , Naoki Ejima , Yasushi Nakajima
IPC分类号： G11B20/10 , H04H20/00 , H04L12/40 , H04L12/64 , G10L19/00
CPC分类号： H04L12/40058 , H04L12/40071 , H04L12/40117
摘要： In transmission of digital audio data usingIEEE1394, for example, when the audio data is changed from linear PCM to nonlinear PCM, identifier adding means of the transmitting apparatus inserts a silent identifier and nearly zero data for a specific time, and first identifier distinguishing means of the receiving apparatus changes over the output of data processing selecting means from linear PCM processing side to nonlinear processing side when detecting the silent identifier, thereby preventing generation of noise when changing over the data.
摘要翻译：在使用IEEE1394传输数字音频数据时，例如，当音频数据从线性PCM变为非线性PCM时，发送装置的标识符添加装置在特定时间内插入无声标识符和近零数据，以及第一标识符辨别装置当检测到无声标识符时，接收装置将数据处理选择装置的输出从线性PCM处理侧切换到非线性处理侧，从而防止在切换数据时产生噪声。

7. 发明授权

US06751177B1 Signal processor 有权
标题翻译：信号处理器
公开(公告)号：US06751177B1
公开(公告)日：2004-06-15
申请号：US09530540
申请日：2000-06-30
申请人： Kazutaka Abe , Masaharu Matsumoto , Akihisa Kawamura , Masatoshi Shimbo , Naoki Ejima
发明人： Kazutaka Abe , Masaharu Matsumoto , Akihisa Kawamura , Masatoshi Shimbo , Naoki Ejima
IPC分类号： G11B509
CPC分类号： G11B20/00007 , G11B20/00992 , G11B20/10 , G11B20/10527 , G11B2020/10592 , G11B2020/10601 , G11B2220/2562
摘要： When, through a multi-speaker of a DVD audio system, signals are recorded/reproduced using a sampling frequency different for every channel, the quantity of calculation of a filter circuit is reduced. Up-sampling information about whether or not the sampling is carried out before the up-sampling by up-sampling means (2a, 2b) is acquired by up-sampling information detecting means (6). The signal up-sampled is filtered by a halfband filter circuit (3), subjected to loss-less compression, and recorded on a recording medium (8).
摘要翻译：当通过DVD音频系统的多扬声器使用针对每个通道不同的采样频率来记录/再现信号时，滤波器电路的计算量减少。通过上采样信息检测装置（6）获取关于在通过上采样装置（2a，2b）进行上采样之前是否执行采样的上采样信息。上采样的信号由半带滤波器电路（3）滤波，经受无损压缩，并记录在记录介质（8）上。

8. 发明授权

US07580525B1 Sub-scrambling/descrambling method and sub-scrambling/descrambling device 失效
标题翻译：子加扰/解扰法和子加扰/解扰器
公开(公告)号：US07580525B1
公开(公告)日：2009-08-25
申请号：US09423930
申请日：1999-03-11
申请人： Naoki Ejima
发明人： Naoki Ejima
IPC分类号： H04L9/00 , H04N7/167
CPC分类号： H04L25/03866
摘要： A sub-scrambling/descrambling method and device enhances the degree of scrambling of linear PCM data. Data is delimited at predetermined times, and the minimum value of a run is found and used as annex information. The run part is replaced with an arbitrary irreversible random data string, which is processed by a main scrambling device to generate transmission data. After main descrambling of the transmission data, a descrambling device takes out the annex Information and replaces the random data string with a predetermined “0” or “1” run according to the annex information. Thus, the degree of scrambling of linear PCM data is enhanced as much or more than compressed video data.
摘要翻译：子加扰/解扰方法和设备增强了线性PCM数据的加扰的程度。数据在预定时间被分隔，找到运行的最小值并用作附件信息。运行部分被替换为任意的不可逆随机数据串，其由主加扰装置处理以产生传输数据。在对发送数据进行主解扰之后，解密设备取出附件信息，并根据附件信息以预定的“0”或“1”运行替换随机数据串。因此，线性PCM数据的加扰度与压缩的视频数据一样多或更多地被增强。

9. 发明申请

US20070046819A1 Electronic apparatus and control method thereof using sample rate converter 有权
标题翻译：电子仪器及其采样率转换器的控制方法
公开(公告)号：US20070046819A1
公开(公告)日：2007-03-01
申请号：US10572960
申请日：2004-09-17
申请人： Shuhei Sasakura , Tatsuya Adachi , Isao Kato , Kazuya Iwata , Naoki Ejima , Seiji Nakamura , Yoshihisa Inagaki
发明人： Shuhei Sasakura , Tatsuya Adachi , Isao Kato , Kazuya Iwata , Naoki Ejima , Seiji Nakamura , Yoshihisa Inagaki
IPC分类号： H04N5/14
CPC分类号： H04N21/4143 , H04N5/4401 , H04N7/01 , H04N21/4126 , H04N21/4305 , H04N21/43632 , H04N21/440263
摘要： An electronic apparatus reads a digital data stream including a video signal and/or an audio signal outputted from an external apparatus according to a transmission clock different from a clock for the data stream, and outputs the video signal and/or audio signal without causing any discontinuity. The electronic apparatus includes a sample rate converter that rate-converts a predetermined volume of the audio signal in synchronization with a constant sampling clock, and changes a number of samples to be outputted, based on a data volume of an audio signal outputted by the electronic apparatus and a data volume of an audio signal transmitted from the external apparatus or transmittable from the external apparatus to the electronic apparatus.
摘要翻译：电子设备根据与数据流的时钟不同的传输时钟读取包括从外部设备输出的视频信号和/或音频信号的数字数据流，并输出视频信号和/或音频信号，而不产生任何不连续性该电子设备包括采样率转换器，其与恒定采样时钟同步地对预定音量的音频信号进行速率转换，并且基于由电子设备输出的音频信号的数据量来改变要输出的采样数量设备和从外部设备发送或可从外部设备发送到电子设备的音频信号的数据量。

10. 发明申请

US20060285012A1 Transmission method, transmission system, sending device and reception device 有权
公开(公告)号：US20060285012A1
公开(公告)日：2006-12-21
申请号：US11489175
申请日：2006-07-19
申请人： Naoki Ejima , Toshiroh Nishio , Akihisa Kawamura , Hidekazu Suzuki , Sho Murakoshi , Tetsuya Hiroe , Hiroshige Okamoto
发明人： Naoki Ejima , Toshiroh Nishio , Akihisa Kawamura , Hidekazu Suzuki , Sho Murakoshi , Tetsuya Hiroe , Hiroshige Okamoto
IPC分类号： H04N7/00
CPC分类号： H04N7/083 , G09G2370/04 , H04N21/43632 , H04N21/439
摘要： Digital audio data which have a predetermined packet structure are divided into units including a predetermined number of bits; each unit of the divided digital audio data is converted into specific data to be encoded; the encoded data are arranged in blanking intervals of video data; the digital audio data are transmitted as well as the video data using a transmission line for the video data, and the video data and the audio data may be simultaneously and favorably transmitted, adopting an existing video-data transmission format such as the DVI standard.

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