Motion picture film and reproducing device therefor
    3.
    发明授权
    Motion picture film and reproducing device therefor 失效
    电影胶片及其再生装置

    公开(公告)号:US5537165A

    公开(公告)日:1996-07-16

    申请号:US175572

    申请日:1993-12-30

    摘要: In a motion picture film of the present invention, audio data digitized from right channel analog audio signals is held in a recording region provided in a left channel digital sound track having the left channel audio data recorded in it, while audio data digitized from left channel analog audio signals is held in a recording region provided in a right channel digital sound track having the right channel audio data recorded in it. With a reproducing system for reproducing the motion picture film of the present invention, unless the left and right channels are destroyed simultaneously, the audio data reproduced from the sound track is used in substitution for the audio data from the destroyed channel to compensate for playback sound interruption.

    摘要翻译: 在本发明的电影胶片中,从右声道模拟音频信号数字化的音频数据被保存在设置在其中记录有左声道音频数据的左声道数字声道中的记录区域中,而从左声道数字化的音频数据 模拟音频信号被保持在设置在其中记录有右声道音频数据的右声道数字声道中的记录区域中。 利用用于再现本发明的电影胶片的再现系统,除非同时破坏左声道和右声道,否则使用从声轨再现的音频数据来代替来自被破坏的声道的音频数据以补偿播放声音 中断

    Movie film having two digital audio data recording areas along its
longitudinal direction
    4.
    发明授权
    Movie film having two digital audio data recording areas along its longitudinal direction 失效
    电影胶片沿其纵向具有两个数字音频数据记录区域

    公开(公告)号:US6157434A

    公开(公告)日:2000-12-05

    申请号:US165318

    申请日:1993-12-13

    CPC分类号: G03C5/14 G03B31/02

    摘要: The movie film has two tracks of left and right digital audio data recording areas in addition to a frame image information recording area in the form of frames, an analog audio data recording area, and left and right perforations. In these audio data recording areas, the same encoded audio data is recorded. Preferably, the audio data is constituted, using the encoding system called the ATRAC system, by the encoding parameter data, the encoded audio data, and the same parameter as the encoding parameter doubly written. This doubly written parameter is recorded in a manner so that when for example the encoding parameter and the encoded audio data are recorded on the left side audio data recording area for a certain channel, the tracks are switched so that the recording is carried out on the opposite right side audio data recording area.

    摘要翻译: 除了帧形式的帧图像信息记录区域,模拟音频数据记录区域以及左右穿孔之外,电影胶片具有左右数字音频数据记录区域的两个轨道。 在这些音频数据记录区域中,记录相同的编码音频数据。 优选地,使用称为ATRAC系统的编码系统,通过编码参数数据,编码音频数据和与双重编写的编码参数相同的参数来构成音频数据。 以这样的方式记录该双重写入的参数,使得当例如将编码参数和编码的音频数据记录在用于某个通道的左侧音频数据记录区域时,切换轨道,使得记录在 相对的右侧音频数据记录区域。

    Signal encoding method and apparatus, signal decoding method and
apparatus and signal transmission apparatus
    5.
    发明授权
    Signal encoding method and apparatus, signal decoding method and apparatus and signal transmission apparatus 失效
    信号编码方法及装置,信号解码方法及装置及信号传输装置

    公开(公告)号:US6061649A

    公开(公告)日:2000-05-09

    申请号:US591623

    申请日:1996-03-11

    摘要: With the signal encoding method and apparatus according to the present invention, noise components of plural channels are encoded individually by a first encoding unit 124, while noise components of plural channels are encoded in common by a second encoding unit 125. A discriminating unit 123 discriminates characteristics of noise components of plural channels. Based upon the results of discrimination, selective switching is made between an output of the first encoding unit 124 and an output of the second encoding unit 125. If the noise components of plural channels are encoded in common, the compression ratio for the noise components of plural channels may be improved. On the other hand, if the noise components of plural channels are not encoded in common, ill effects due to common handling can be prohibited.

    摘要翻译: PCT No.PCT / JP95 / 01172 Sec。 371日期:1996年3月11日 102(e)1996年3月11日PCT申请1995年6月12日PCT公布。 WO95 / 34956 PCT公开号 日期1995年12月21日利用根据本发明的信号编码方法和装置,多个信道的噪声分量由第一编码单元124分别编码,而多个信道的噪声分量由第二编码单元125共同编码。 鉴别单元123鉴别多个声道的噪声分量的特性。 基于鉴别的结果,在第一编码单元124的输出和第二编码单元125的输出之间进行选择性切换。如果多个频道的噪声分量被共同编码,则噪声分量的压缩比 可以提高多个通道。 另一方面,如果多个频道的噪声分量不被共同编码,则可以禁止由于共同处理而产生的不良影响。

    Transmission device and transmission method
    6.
    发明授权
    Transmission device and transmission method 失效
    传输装置及传输方式

    公开(公告)号:US6025946A

    公开(公告)日:2000-02-15

    申请号:US920426

    申请日:1997-08-29

    IPC分类号: H04L25/49 H04L27/18 H04B10/00

    CPC分类号: H04L27/18 H04L25/4904

    摘要: The present invention relates to a transmission device and a transmission method which can efficiently perform transmission of audio signals with infrared ray and suppress the complication of data processing in modulation and demodulation processes to the minimum level. Audio signals reproduced by a digital audio instrument are transmitted to and recorded into a digital audio recorder through an audio signal transmission device by infrared ray. In the digital audio recorder, the recorded audio signals are immediately reproduced, transmitted and output to a digital audio instrument through an audio transmission device with infrared ray. In the transmitters, a transmission channel clock having the frequency of 5/4-times the data clock thereof from the audio signals, and modulated signals obtained by modulating the audio signals are output at the timing of the transmission channel clock.

    摘要翻译: 本发明涉及一种可以有效地利用红外线进行音频信号的传输并将调制解调处理中的数据处理的复杂度抑制到最小水平的发送装置和发送方法。 由数字音乐乐器再现的音频信号通过红外线通过音频信号传输装置发送到数字音频记录器并记录到数字音频记录器中。 在数字音频记录器中,记录的音频信号通过具有红外线的音频传输装置立即被再现,传输和输出到数字音频装置。 在发射机中,具有频率为+ E,fra 5/4 + EE的传输信道时钟,来自音频信号的数据时钟,并且通过调制音频信号获得的调制信号在传输信道的定时被输出 时钟。

    Coding method for using multi channel audio signals
    7.
    发明授权
    Coding method for using multi channel audio signals 失效
    使用多声道音频信号的编码方法

    公开(公告)号:US5960390A

    公开(公告)日:1999-09-28

    申请号:US720663

    申请日:1996-10-02

    IPC分类号: G10L19/025 H04B1/66 G10L7/02

    CPC分类号: G10L19/025 H04B1/665

    摘要: There is provided a coding method which can effectively prevent a pre-echo and a post-echo from being generated and can perform effective coding to which an psycho-acoustic model is applied. A coding apparatus according to the coding method of the present invention detects the attack and release portions of a waveform signal, and performs gain control to a waveform signal before the attack portion and the waveform signal of the release portion by using a gain control amount adaptively calculated according to the characteristics of the waveform signal. An psycho acoustic model window circuit to an aural model application circuit calculate a masking level based on the psycho-acoustic model from a frequency component obtained by transforming the waveform signal, and a quantization precision determination circuit determines a quantization precision by using the masking level. An window circuit and a transform circuit transform the waveform signal into a plurality of frequency components. The quantization circuit quantizes the plurality of frequency components by using the quantization precision.

    摘要翻译: 提供了一种编码方法,其可以有效地防止产生前回波和后回波,并且可以执行应用心理声学模型的有效编码。 根据本发明的编码方法的编码装置检测波形信号的发出和释放部分,并且通过自适应地使用增益控制量对释放部分之前的波形信号和释放部分的波形信号进行增益控制 根据波形信号的特性进行计算。 听觉模型应用电路的心理声学模型窗口电路基于通过变换波形信号获得的频率分量的心理 - 声学模型来计算屏蔽水平,并且量化精度确定电路通过使用屏蔽电平来确定量化精度。 窗口电路和变换电路将波形信号变换为多个频率分量。 量化电路通过使用量化精度量化多个频率成分。

    Light-signal transmitting apparatus, light-signal receiving apparatus, light-signal transfer apparatus and light-signal transfer method
    8.
    发明授权
    Light-signal transmitting apparatus, light-signal receiving apparatus, light-signal transfer apparatus and light-signal transfer method 失效
    光信号发送装置,光信号接收装置,光信号传送装置和光信号传送方法

    公开(公告)号:US06233079B1

    公开(公告)日:2001-05-15

    申请号:US09493785

    申请日:2000-01-28

    申请人: Shinji Miyamori

    发明人: Shinji Miyamori

    IPC分类号: H04B1004

    CPC分类号: H04B10/676

    摘要: A light-signal transfer apparatus capable of continuously reproducing signals even if the transfer passage is temporarily intercepted, the apparatus being structured in such a manner that a delay memory delays time-sequential digital data to generate digital data, a multiplexer multiplexes two digital data items to transfer the data items as infrared rays. An error correction circuit corrects the transmitted signals to output multiplexed data and outputs error detection signal indicating a fact that correction cannot be performed because of interception of the transfer passage or the like. A demultiplexer separates transmitted multiplexed data into two digital data items, and a delay memory delays one of the digital data items to make coincide the time bases of the two data items. A data selector selects either of the two digital data items in accordance with information of the error detection signal.

    摘要翻译: 即使传输通道被暂时截断,能够连续再现信号的光信号传送装置,该装置的结构使得延迟存储器延迟时序数字数据以产生数字数据,多路复用器将两个数字数据项 将数据项目作为红外线传输。 错误校正电路校正发送的信号以输出多路复用数据,并且输出指示由于传送通道等的截取而不能执行校正的事实的错误检测信号。 解复用器将发送的多路复用数据分离成两个数字数据项,并且延迟存储器延迟数字数据项中的一个以使两个数据项的时基相一致。 数据选择器根据错误检测信号的信息来选择两个数字数据项之一。

    High efficient signal coding method and apparatus therefor
    9.
    发明授权
    High efficient signal coding method and apparatus therefor 失效
    高效信号编码方法及其装置

    公开(公告)号:US5950156A

    公开(公告)日:1999-09-07

    申请号:US723516

    申请日:1996-09-30

    CPC分类号: G10L19/032 G10L19/093

    摘要: An apparatus and method for high efficient signal coding by separating frequency components obtained by converting an input signal into tone property component signals and the other component signals by using a mask level obtained based on the psychoacoustic model and coding these signals respectively to increase signal coding quality and efficiency.

    摘要翻译: 一种用于通过将通过将输入信号转换为音调特性分量信号和其它分量信号而获得的频率分量的分离频率分量的装置和方法,该方法通过使用基于心理声学模型获得的掩模级别并分别对这些信号进行编码以增加信号编码质量 和效率。

    Adaptive bit allocation of tonal and noise components
    10.
    发明授权
    Adaptive bit allocation of tonal and noise components 失效
    色调和噪声分量的自适应位分配

    公开(公告)号:US5870703A

    公开(公告)日:1999-02-09

    申请号:US489974

    申请日:1995-06-13

    CPC分类号: H04B1/665

    摘要: The input signal of one of the plural channels is converted by a converting circuit into frequency components which are separated into tonal components and noise components in a signal comment separating circuit. The tonal components and the signal components are encoded by a tonal component encoding circuit and a noise component encoding circuit, respectively. The amount of bytes allocated to the noise components in the respective channels is determined by a byte allocation circuit based upon time changes of the sum of the scale factors of the respective channels.

    摘要翻译: 多个通道中的一个的输入信号由转换电路转换成在信号注释分离电路中分离为音调分量和噪声分量的频率分量。 音调分量和信号分量由音调分量编码电路和噪声分量编码电路分别编码。 分配给相应信道中的噪声分量的字节量由基于相应信道的比例因子之和的时间变化的字节分配电路确定。