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公开(公告)号：US4583074A
公开(公告)日：1986-04-15
申请号：US527358
申请日：1983-08-29
申请人： Hiroo Okamoto , Tsutomu Noda , Takao Arai
发明人： Hiroo Okamoto , Tsutomu Noda , Takao Arai
CPC分类号： H03M7/50 , H03G7/007 , H04B14/048
摘要： A PCM signal processor which converts an analog signal into a digital signal to transmit or record the digital signal. When the PCM signal processor receives a PCM signal whose data has been compressed in such a manner that one or more lower bits are cut off from a plurality of bits for forming the PCM signal and indicating the signal level of the analog signal, in accordance with the signal level of the analog signal, one or more bits corresponding to the number of bits having been cut off are added in the processor to the compressed PCM signal at the position following the least significant bit of the compressed PCM signal. Correction data indicating about one half the largest one of numerical values that can be expressed by the added bit or bits, is given to the added bit or bits.
摘要翻译： PCM信号处理器，其将模拟信号转换为数字信号以传送或记录数字信号。 当PCM信号处理器接收到其数据已经被压缩的PCM信号，使得从用于形成PCM信号的多个比特中切出一个或多个低位并指示模拟信号的信号电平时，根据 模拟信号的信号电平，对应于被切断的位数的一个或多个比特在处理器中被加到在压缩PCM信号的最低有效位之后的位置处的压缩PCM信号。 指示相加位或数位可表示的数值中最大值数字的大约一半的校正数据。
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公开(公告)号：US4570153A
公开(公告)日：1986-02-11
申请号：US621744
申请日：1984-06-18
申请人： Masaharu Kobayashi , Takao Arai , Tsutomu Noda
发明人： Masaharu Kobayashi , Takao Arai , Tsutomu Noda
CPC分类号： G11B20/10527 , H03M1/1019 , H04B14/04 , H03M1/504
摘要： A signal conversion apparatus for use in a PCM signal processing system in which a series of multi-bit digital signals is produced through sampling and quantization of a multi-channel analog signal. The series of multi-bit digital signals includes groups of multi-bit digital signals being representative of respective analog signal portions constituting the multi-channel analog signal. The apparatus comprises a translating section for producing substitutional multi-bit digital signals from at least one of the groups of digital signals corresponding to at least one analog signal portion, which substitutional digital signals represent amplitudes of the one analog signal portion at sampling points different from those at which the one analog signal was sampled to provide the one group of digital signals. The substitutional digital signals are substituted, in the translating section, for the one group of the digital signals to produce a corresponding group of sampling point-shifted multi-bit digital signals. The resulting PCM multi-bit digital signals are acceptable by digital-to-analog conversion processor requiring PCM digital signals generated through sampling at shifted or different sampling points as compared with the above-mentioned series of digital signals.
摘要翻译： 一种在PCM信号处理系统中使用的信号转换装置，其中通过多通道模拟信号的采样和量化产生一系列多位数字信号。 多比特数字信号系列包括代表构成多声道模拟信号的相应模拟信号部分的多比特数字信号组。 该装置包括用于从与至少一个模拟信号部分相对应的数字信号组中的至少一个产生替代多位数字信号的转换部分，该替代数字信号表示在不同于的模拟信号部分的采样点处的一个模拟信号部分的振幅 对一个模拟信号进行采样以提供一组数字信号。 替代数字信号在转换部分中代替一组数字信号，以产生相应的采样点移位多位数字信号组。 与上述一系列数字信号相比，所得到的PCM多位数字信号可以通过数模转换处理器来接受，该数模转换处理器需要通过在移位或不同采样点的采样产生的PCM数字信号。
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公开(公告)号：US4562549A
公开(公告)日：1985-12-31
申请号：US434058
申请日：1982-10-13
申请人： Hiromichi Tanaka , Hiroyuki Kimura , Tsutomu Noda , Takao Arai , Masaharu Kobayashi , Shigeki Inoue
发明人： Hiromichi Tanaka , Hiroyuki Kimura , Tsutomu Noda , Takao Arai , Masaharu Kobayashi , Shigeki Inoue
IPC分类号： G01R29/027 , G11B19/28 , G11B20/10 , H03K5/01 , H03K5/22
CPC分类号： G11B19/28 , G01R29/0273 , G11B20/10 , Y10S388/912 , Y10S388/916
摘要： In a pulse width detector circuit, a high-level pulse width and a low-level pulse width of a digital signal derived by slicing an analog signal reproduced from a disc at a predetermined level are independently measured and maximum or minimum values thereof in a predetermined time interval are stored, and an average value, sum or difference of the maximum or minimum high-level pulse width and the maximum or minimum low-level pulse width is calculated to detect a correct pulse width of original data recorded on the disc.
摘要翻译： 在脉冲宽度检测电路中，独立地测量通过将从盘再现的模拟信号以预定水平进行分片而得到的数字信号的高电平脉冲宽度和低电平脉冲宽度，并且其预定的最大值或最小值 存储时间间隔，并且计算最大或最小高电平脉冲宽度与最大或最小低电平脉冲宽度的平均值，和或差，以检测记录在盘上的原始数据的正确脉冲宽度。
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公开(公告)号：US5285279A
公开(公告)日：1994-02-08
申请号：US751777
申请日：1991-08-29
申请人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
发明人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
IPC分类号： H04N5/21
CPC分类号： H04N5/211 , H03H2222/02
摘要： A transmission distortion elimination device for eliminating from a transmitted TV signal, for example, signal distortion such as ghost under fuzzy inferenced control based on an iterative correction method with the capabilities of fast control settling, and a flexible and stable distortion removal operation. The device comprises a filter section for suppressing such transmission distortion as ghost, a controller for controlling the tap coefficients of the filter section, and a fuzzy inference section for receiving distortion information obtained by the controller. The fuzzy inference section iteratively infers and evaluates a correction value of tap coefficients of the filter section. The tap coefficient correction value is determined through fuzzy inference, and the control method for counteracting disturbance coefficients to the control system is described in rules of IF-THEN form based on fuzzy levels, which facilitates the organization of the control algorithm. By the capability of deriving from these rules the correction value which is made continuously variable, the fast control settling, and the stable and flexible transmission distortion elimination operation can be accomplished.
摘要翻译： 一种传输失真消除装置，用于基于具有快速控制稳定能力的迭代校正方法，从发射的TV信号中消除例如模糊参考控制下的重影等信号失真，以及灵活且稳定的失真消除操作。 该装置包括用于抑制如重影的传输失真的滤波器部分，用于控制滤波器部分的抽头系数的控制器和用于接收由控制器获得的失真信息的模糊推理部分。 模糊推理部分迭代地推导和评估滤波器部分的抽头系数的校正值。 抽头系数校正值是通过模糊推理确定的，并且基于模糊级别的IF-THEN形式的规则描述了对控制系统的干扰系数的抵消控制方法，这有助于组织控制算法。 通过从这些规则得出能够连续变化的校正值，可以实现快速控制稳定，稳定灵活的发送失真消除操作。
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5.发明授权
公开(公告)号：US5210607A
公开(公告)日：1993-05-11
申请号：US699917
申请日：1991-05-14
申请人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
发明人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
IPC分类号： H04N5/21
CPC分类号： H04N5/211
摘要： A ghost elimination device equipped in a television receiver extracts a reference signal from the television signal, the reference signal being inserted in the television signal in a certain sequence or at random with the intention of ghost elimination, implements the sequence decoding process and noise elimination process for the reference signal, and controls the characteristics of the ghost eliminating transversal filter which suppresses the transmission distortion. The device includes a sequence decoding circuit for decoding the transmission sequence of the reference signal, a transversal filter for suppressing the distortion of transmission path disposed in a rear stage of sequence decoding circuit, and a controller which introduces the reference signal provided by the filter to control the characteristics of the filter or apply the output of the sequence decoding circuit to the transversal filter through a noise elimination filter. The transversal filter has a tapped delay line formed of registers with an initialization terminal and an input terminal for controlling the initialization terminal.
摘要翻译： 配置在电视接收机中的除鬼装置从电视信号中提取参考信号，参考信号以特定顺序插入电视信号中，或者随机地抽取，以实现重像消除，实现序列解码处理和噪声消除处理 用于参考信号，并且控制抑制透射失真的重影消除横向滤波器的特性。 该装置包括用于解码参考信号的发送序列的序列解码电路，用于抑制设置在序列解码电路的后级中的传输路径的失真的横向滤波器，以及将由滤波器提供的参考信号引入到 控制滤波器的特性或通过噪声消除滤波器将序列解码电路的输出应用于横向滤波器。 横向滤波器具有由初始化端子和用于控制初始化端子的输入端子的寄存器形成的抽头延迟线。
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公开(公告)号：US4539665A
公开(公告)日：1985-09-03
申请号：US468190
申请日：1983-02-22
申请人： Yoshimi Iso , Shigeki Inoue , Tsutomu Noda , Shinichi Ohashi
发明人： Yoshimi Iso , Shigeki Inoue , Tsutomu Noda , Shinichi Ohashi
CPC分类号： G11B21/106 , G11B7/0903
摘要： An information reproducing apparatus having a tracking servo control loop for causing an information reading unit including device for detecting a tracking error signal for tracking an information bearing track on a disc, to track the information bearing track in accordance with the tracking error signal so as to reproduce information in accordance with an information signal read by the information reading unit. A circuit for extracting a discrimination signal for discriminating a negative feedback region of the tracking error signal is provided so that a tracking servo control loop is closed in the negative feedback region.
摘要翻译： 一种具有跟踪伺服控制回路的信息再现装置，用于使信息读取单元包括用于检测用于跟踪盘上的信息承载轨道的跟踪误差信号的装置，以根据跟踪误差信号跟踪信息承载轨迹，从而 根据由信息读取单元读取的信息信号再现信息。 提供用于提取用于识别跟踪误差信号的负反馈区域的鉴别信号的电路，使得在负反馈区域中关闭跟踪伺服控制环路。
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7.发明授权Digital signal transmission system with priority information forcing display of text on a receiver 失效具有优先信息的数字信号传输系统强制在接收机上显示文本
公开(公告)号：US5760820A
公开(公告)日：1998-06-02
申请号：US598006
申请日：1996-02-07
申请人： Takanori Eda , Isao Nakagawa , Keiro Shinkawa , Tsutomu Noda , Toshio Nagashima , Kenji Katsumata , Satoshi Iimuro
发明人： Takanori Eda , Isao Nakagawa , Keiro Shinkawa , Tsutomu Noda , Toshio Nagashima , Kenji Katsumata , Satoshi Iimuro
IPC分类号： H04N19/00 , H04N5/445 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/14 , H04N7/16 , H04N7/173 , H04N19/102 , H04N19/134 , H04N19/162 , H04N19/196 , H04N19/37 , H04N19/42 , H04N19/423 , H04N19/70 , H04N21/236 , H04N21/2365 , H04N7/10
CPC分类号： H04N7/147 , H04N21/23614 , H04N21/2365 , H04N21/4347 , H04N21/4348 , H04N21/4882 , H04N21/814
摘要： A digital signal transmission system including a transmitter and a receiver and capable of transmitting highly efficiently compressed/coded digital video signals and receiving the video signals so that the text of emergency information or the like can be displayed together with video images without once expanding/decoding the digital video signals on the transmitter side. In this system, the multiplexer of the transmitter multiplexes digital video signals and digital audio signals with a digital information signal of text which is produced and has N-level priority information added by the information stream generator, and transmits the multiplex signal to the receiver. The receiver determines whether the text of the digital information signal is to be displayed on the basis of the priority information added to the digital information signal, and when it is determined that the text are to be displayed, the receiver can display the text of the digital information signal together with the image of the digital video signal.
摘要翻译： 一种数字信号传输系统，包括发射机和接收机，并且能够传输高效率的压缩/编码数字视频信号并接收视频信号，使得紧急信息等的文本与视频图像一起显示，而无需一次扩展/解码 发射机侧的数字视频信号。 在该系统中，发射机的多路复用器利用产生的文本的数字信息信号多路复用数字视频信号和数字音频信号，并且由信息流发生器添加了N级优先级信息，并将多路复用信号发送到接收机。 接收机根据添加到数字信息信号的优先级信息确定是否显示数字信息信号的文本，并且当确定要显示文本时，接收器可以显示文本 数字信息信号与数字视频信号的图像一起。
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公开(公告)号：US4882725A
公开(公告)日：1989-11-21
申请号：US150203
申请日：1988-01-29
摘要： A multiplex transmission method using especially a vestigial-sideband amplitude-modulated carrier modulated by a video signal. The method includes modulating a carrier having a quadrature phase with respect to an amplitude-modulated carrier by a multiplex-transmitted signal such as a digital-coded signal with a lower level as compared with the amplitude-modulated carrier, suppressing signal components of a signal obtained by modulating the carrier by a multiplex-transmitted signal, which is located near the carrier frequency, combining the result with the amplitude-modulated carrier, and thereafter transmitting the combined signal.
摘要翻译： 一种使用特别是由视频信号调制的残留边带幅度调制载波的复用传输方法。 该方法包括通过诸如与幅度调制载波相比具有较低电平的数字编码信号的多路传输信号调制具有相对于调幅载波的正交相位的载波，抑制信号的信号分量 通过位于载波频率附近的复用发送信号调制载波获得，将结果与幅度调制载波组合，然后发送组合信号。
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公开(公告)号：US6078944A
公开(公告)日：2000-06-20
申请号：US831303
申请日：1997-04-01
申请人： Yutaka Enko , Toshiaki Arai , Reki Yamamoto , Naofumi Shouji , Tomoki Sekiguchi , Tsutomu Noda , Tsuyoshi Watanabe , Tetsuya Mochida
发明人： Yutaka Enko , Toshiaki Arai , Reki Yamamoto , Naofumi Shouji , Tomoki Sekiguchi , Tsutomu Noda , Tsuyoshi Watanabe , Tetsuya Mochida
IPC分类号： G06F15/16 , G06F9/46 , G06F9/50 , G06F15/177 , G06F9/00
CPC分类号： G06F9/5088
摘要： The parallelism of execution of processes in a memory shared multi-processor is enhanced. Each of a plurality of processors is provided with a run queue for holding executable processes, and a watch process for each processor to watch the execution status of its own to notify the rebuilding of the run queue to other processor and a rebuild step for rebuilding the run queue in response to the notice are stored in a shared memory as a program.
摘要翻译： 增强了存储器共享多处理器中进程的并行性。 多个处理器中的每一个都具有用于保持可执行过程的运行队列，以及用于每个处理器监视其自己的执行状态的监视处理，以将运行队列重建通知给其他处理器，以及重建步骤，用于重建 响应通知的运行队列作为程序存储在共享内存中。
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公开(公告)号：US4642573A
公开(公告)日：1987-02-10
申请号：US783521
申请日：1985-10-03
申请人： Tsutomu Noda , Keiro Shinkawa , Nobutaka Amada
发明人： Tsutomu Noda , Keiro Shinkawa , Nobutaka Amada
CPC分类号： H04L27/2272 , H03D3/242 , H03D3/245 , H03L7/087 , H03D2200/0031 , H03D7/161
摘要： A phase locked loop circuit for use in a heterodyne receiver for stably demodulating a carrier-suppressed double-sideband signal such as a 2-phase or 4-phase PSK signal. The phase locked loop circuit comprises a reference oscillator oscillating at a frequency corresponding to an intermediate frequency, and the frequency difference between the reference frequency and the input frequency is detected by a Costas loop, a signal indicative of the frequency difference being fed back to a local oscillator through a loop filter thereby stabilizing the intermediate frequency.
摘要翻译： 一种用于外差接收机的锁相环电路，用于稳定解调诸如2相或4相PSK信号的载波抑制双边带信号。 锁相环电路包括以对应于中频的频率振荡的参考振荡器，并且通过科斯塔斯回路检测参考频率与输入频率之间的频率差，表示频差的信号被反馈到 本地振荡器通过环路滤波器，从而稳定中频。
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