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11. 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.

12. 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。

13. 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。

14. 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。

15. 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。

16. 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。

17. 发明申请

US20090073316A1 LIP-SYNC CORRECTING DEVICE AND LIP-SYNC CORRECTING METHOD 有权
标题翻译： LIP同步校正装置和LIP同步校正方法
公开(公告)号：US20090073316A1
公开(公告)日：2009-03-19
申请号：US11913029
申请日：2006-04-25
申请人： Naoki Ejima
发明人： Naoki Ejima
IPC分类号： H04N9/475 , H04N5/00 , H04N7/00 , H04N5/66
CPC分类号： H04N5/04 , H04N21/2368 , H04N21/4307 , H04N21/4341 , H04N21/43632 , H04N21/44227
摘要： A video signal and an audio signal are transmitted from a source device (400) to a sink device (410) in conformity with respective predetermined interfaces through respective transmission channels. The respective interfaces include bidirectional interface such as an HDMI and an IEEE1394. A controller (420) acquires delay information (TLv) representing the total delay time of the devices connected to the transmission channels conforming to the bidirectional interface and corrects the difference in reproduction time between the video and audio signals by using the acquired delay information (TLv).
摘要翻译：视频信号和音频信号通过各个传输信道从源设备（400）传送到符合各个预定接口的信宿设备（410）。各个接口包括诸如HDMI和IEEE1394之类的双向接口。控制器（420）获取表示连接到符合双向接口的传输信道的设备的总延迟时间的延迟信息（TLv），并通过使用所获取的延迟信息（TLv）来校正视频和音频信号之间的再现时间差）。

18. 发明授权

US07069224B2 Receiver for receiving audio data and audio-related information 有权
标题翻译：用于接收音频数据和音频相关信息的接收器
公开(公告)号：US07069224B2
公开(公告)日：2006-06-27
申请号：US10249650
申请日：2003-04-28
申请人： Akihisa Kawamura , Naoki Ejima , Masatoshi Shimbo
发明人： Akihisa Kawamura , Naoki Ejima , Masatoshi Shimbo
IPC分类号： G10L19/00
CPC分类号： H04B14/04 , G10L19/00 , G11B20/10527 , G11B2020/00014 , G11B2020/10546
摘要： A method for transferring audio data and audio-related information includes: a generation step of generating second audio data from first audio data; a transmission step of transmitting the second audio data and audio-related information associated with the second audio data; and a reception step of receiving the second audio data and the audio-related information, wherein the audio-related information includes information representing a sampling frequency of the first audio data.
摘要翻译：用于传送音频数据和音频相关信息的方法包括：生成步骤，从第一音频数据生成第二音频数据; 发送步骤，发送与第二音频数据相关联的第二音频数据和音频相关信息; 以及接收步骤，接收第二音频数据和音频相关信息，其中音频相关信息包括表示第一音频数据的采样频率的信息。

19. 发明授权

US06584443B1 Apparatus and method for audio data/audio-related information transfer 有权
标题翻译：用于音频数据/音频相关信息传输的装置和方法
公开(公告)号：US06584443B1
公开(公告)日：2003-06-24
申请号：US09553590
申请日：2000-04-20
申请人： Akihisa Kawamura , Naoki Ejima , Masatoshi Shimbo
发明人： Akihisa Kawamura , Naoki Ejima , Masatoshi Shimbo
IPC分类号： G10L1900
CPC分类号： H04B14/04 , G10L19/00 , G11B20/10527 , G11B2020/00014 , G11B2020/10546
摘要： A method for transferring audio data and audio-related information includes generating second audio data from first audio data, transmitting second audio data and audio-related information associated with the second audio data, and receiving the second audio data and audio-related information which includes information on a sampling frequency of the first audio data.
摘要翻译：用于传送音频数据和音频相关信息的方法包括从第一音频数据生成第二音频数据，发送与第二音频数据相关联的第二音频数据和音频相关信息，以及接收第二音频数据和音频相关信息，其包括关于第一音频数据的采样频率的信息。

20. 发明授权

US06449596B1 Wideband audio signal encoding apparatus that divides wide band audio data into a number of sub-bands of numbers of bits for quantization based on noise floor information 失效
标题翻译：宽带音频信号编码装置，其将宽带音频数据划分为多个用于基于噪声底层信息进行量化的比特数的子带
公开(公告)号：US06449596B1
公开(公告)日：2002-09-10
申请号：US09125082
申请日：1999-06-07
申请人： Naoki Ejima
发明人： Naoki Ejima
IPC分类号： G10L2100
CPC分类号： G11B20/00007 , H04B1/667
摘要： A wide band audio signal encoding apparatus, a wide band audio signal decoding apparatus, a wide band audio signal encoding and decoding apparatus and a wide band audio signal recording medium, each having a low bit rate, a wide band, a low distortion factor and a wide dynamic range are provided. Wide band audio data is divided into signal data of a predetermined natural number N of sub-bands, and the number of bits for quantization for sub-sampling is determined based on noise floor information of the above wide band audio data. The signal data of the N sub-bands are sub-sampled by the respective numbers of bits for quantization, and encoded data obtained by multiplexing the signal data of the sub-sampled N sub-bands are recorded on a wide band audio signal recording medium. Therefore, both he characteristics of an extremely wide dynamic range and a wide band can be concurrently achieved at a relatively low bit rate per channel. This arrangement allows the achievement of recording and reproduction of an extremely transparent natural sound extending to an ultrahigh frequency region, and a recording medium for recording a signal of the above wide band audio data and a reproduction sound field.
摘要翻译：宽带音频信号编码装置，宽带音频信号解码装置，宽带音频信号编码和解码装置和宽带音频信号记录介质，每个具有低比特率，宽带，低失真因子和提供了宽动态范围。宽带音频数据被划分为预定的自然数N个子带的信号数据，并且基于上述宽带音频数据的噪声基底信息确定用于子采样的量化的比特数。 N个子带的信号数据通过用于量化的各个比特数进行子采样，并且将通过将子采样的N个子带的信号数据进行多路复用而获得的编码数据记录在宽带音频信号记录介质。因此，可以以每个通道相对低的比特率同时实现极宽动态范围和宽带的特征。这种布置允许实现延伸到超高频区域的极度透明的自然声音的记录和再现，以及用于记录上述宽带音频数据和再现声场的信号的记录介质。

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