Rotary head digital audio tape recorder with multiple recording modes
    91.
    发明授权
    Rotary head digital audio tape recorder with multiple recording modes 失效
    旋转头数字录音机具有多种录音模式

    公开(公告)号:US4816926A

    公开(公告)日:1989-03-28

    申请号:US807514

    申请日:1985-11-27

    摘要: This invention relates to an information signal recording apparatus which can be used also as an audio tape recorder only. When it is used only as the audio tape recorder, an audio signal is sampled with a frequency m times the sampling frequency of an audio signal which is used upon recording a video signal and the thus sampled PCM digital audio signal is diffusively recorded on at least two recording intervals thereby to improve the tone quality of the audio signal and the compatibility with the audio tape recorder using a video tape recorder of the same kind can be established.

    摘要翻译: PCT No.PCT / JP85 / 00213 Sec。 371日期:1985年11月27日 102(e)1985年11月27日PCT PCT公布1985年4月18日PCT公布。 出版物WO85 / 04979 日期:1985年11月7日。本发明涉及一种信息信号记录装置,它也可用作音频磁带录音机。 当它仅用作音频磁带录像机时,音频信号以记录视频信号所使用的音频信号的采样频率的m倍采样,并且这样采样的PCM数字音频信号至少扩散地记录 两个记录间隔因此可以改善音频信号的音质,并且可以建立与使用相同类型的录像机的音频磁带录音机的兼容性。

    Method for data transmission
    92.
    发明授权
    Method for data transmission 失效
    数据传输方法

    公开(公告)号:US4562578A

    公开(公告)日:1985-12-31

    申请号:US494325

    申请日:1983-05-13

    CPC分类号: G11B20/1809

    摘要: In the recording/reproducing of digital audio signals, errors are detected and corrected by using two parity words, one arranged at the center of the block formed of data words and the arranged at one end of the block. The probability that uncorrectable error will be present in the center of the block is relatively high, so placing the parity word there prevents loss of the more valuable data. Maximum correctable burst errors are determined by the length of the block, so placing the other parity word on the end of the block lengthens it and improves burst error correction. The parity words are arranged as indicated before adding a cyclic redundancy check (CRC) code to the data signal and then modulation coding the signal before recording. During playback, the reproduced signal is demodulated and the CRC code used to detect errors for which error pointers are generated. The reproduced data is read into memories in accordance with generated addresses and the pointers prevent the writing in of words found to be in error, which error words are subsequently corrected if possible using parity codes originally encoded into the signals prior to recording.

    摘要翻译: 在数字音频信号的记录/再现中,通过使用两个奇偶校验字来检测和校正错误,一个排列在由数据字形成的块的中心并排列在块的一端。 在块的中心存在不可校正错误的概率相对较高,因此将奇偶校验字放置在此可防止丢失更有价值的数据。 最大可纠正的突发错误由块的长度确定,因此将另一个奇偶校验字放在块的末端会延长它并改善突发错误校正。 在将循环冗余校验(CRC)码添加到数据信号之前,奇偶校验字按照指示排列,然后在记录之前对信号进行调制编码。 在播放期间,再现信号被解调,并且用于检测产生错误指针的错误的CRC码。 根据生成的地址将再现的数据读入存储器,并且指针防止写入发现的错误的字,如果可能的话,随后可以使用最初编码到记录之前的信号中的奇偶校验码校正哪些错误字。

    Method and apparatus for recording digital information in alternate
recording tracks
    93.
    发明授权
    Method and apparatus for recording digital information in alternate recording tracks 失效
    用于在替代记录轨道中记录数字信息的方法和装置

    公开(公告)号:US4551771A

    公开(公告)日:1985-11-05

    申请号:US375103

    申请日:1982-05-05

    CPC分类号: H04N5/928 G11B20/22

    摘要: Information is digitized, and the digital information signals are used to produce frequency modulated signals the instantaneous frequency of which is a function of the content of the digital information signals. The frequency-modulated signals are recorded in alternate tracks with alternate recording heads having air gaps of different azimuth angles. In one embodiment, the recording heads are the rotary heads of a VTR, and the digital information signals are digital audio signals which are recorded in the same tracks as the usual video signals.

    摘要翻译: 信息被数字化,并且数字信息信号用于产生其瞬时频率是数字信息信号的内容的函数的调频信号。 频率调制信号被记录在具有不同方位角的气隙的备用记录头的交替轨道中。 在一个实施例中,记录头是VTR的旋转磁头,数字信息信号是记录在与通常的视频信号相同的磁道中的数字音频信号。

    Digital capstan servo circuit
    94.
    发明授权
    Digital capstan servo circuit 失效
    数字主导伺服电路

    公开(公告)号:US4500822A

    公开(公告)日:1985-02-19

    申请号:US534508

    申请日:1983-09-21

    IPC分类号: G11B15/467 H02P23/00 G05B5/00

    摘要: A digital capstan servo circuit controls the rotation of a capstan motor used for sending a recording medium of a recording apparatus having a recording circuit for recording a plurality of pilot signals instead of CTL signals used for a tracking servo of the capstan motor in a reproducing mode. The pilot signals have different frequencies respectively and are recorded under being mixed with a video signal on video tracks. In the recording mode, a rotation speed information obtained from a counter of which a counting value is latched by a latch pulse produced from FG signals which are generated synchronously with the capstan motor and a rotation phase information obtained from the counter of which a counting value is latched by a latch pulse produced from an oscillator, an output signal of the oscillator having the same frequency as that of but a different phase from as that of the FG signals, are mixed to be a control signal of the capstan motor.

    摘要翻译: 数字主导轴伺服电路控制用于发送具有用于记录多个导频信号的记录电路的记录介质的主导轴电动机的转动,而不是以再现模式用于主导轴电动机的跟踪伺服的CTL信号 。 导频信号分别具有不同的频率,并且在与视频轨道上的视频信号混合的情况下被记录。 在记录模式中,从计数器获得的旋转速度信息,其计数值由与主导轴电动机同步产生的FG信号产生的锁存脉冲和从计数器获得的旋转相位信息锁存, 由振荡器产生的锁存脉冲锁存,具有与FG信号相同的频率的相同频率的振荡器的输出信号被混合成主导轴马达的控制信号。

    Apparatus for recording a digital audio signal in a track with a video
signal
    95.
    发明授权
    Apparatus for recording a digital audio signal in a track with a video signal 失效
    用于在具有视频信号的轨道中记录数字音频信号的装置

    公开(公告)号:US4477844A

    公开(公告)日:1984-10-16

    申请号:US346144

    申请日:1982-02-05

    CPC分类号: H04N5/928 H04N5/92

    摘要: Apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of tracks extending obliquely on a magnetic tape includes a sample and hold circuit, an analog-to-digital converter and an encoder for converting the audio signal to a pulse code modulation (PCM) audio signal; a time base compression circuit for compressing the PCM audio signal; and two rotary magnetic heads for recording the compressed PCM audio signal in the plurality of tracks, each of the tracks being divided into a first leading audio track section, a contral video track section and a trailing audio track section, with the two heads recording one field interval of the video signal in the central track section of each track and recording the audio signal corresponding to one field interval of the video signal recorded in an adjacent track, in the first and second audio track sections of each track such that odd samples of the audio signal are recorded in each first leading audio track section and even samples of the audio signal are recorded in each second trailing audio track section.

    摘要翻译: 用于记录和再现由在磁带上倾斜延伸的多个轨道中的视频信号和音频信号组成的信息信号的装置包括采样和保持电路,模拟 - 数字转换器和用于转换音频信号的编码器 到脉冲编码调制(PCM)音频信号; 用于压缩PCM音频信号的时基压缩电路; 以及用于在多个轨道中记录压缩的PCM音频信号的两个旋转磁头,每个磁道被划分成第一前导音频轨道部分,对比视频轨道部分和尾随音频轨道部分,两个磁头记录一个 每个轨道的中心轨道部分中的视频信号的场间隔,并且记录与记录在相邻轨道中的视频信号的一个场间隔对应的音频信号,在每个轨道的第一和第二音轨部分中, 音频信号被记录在每个第一引导音频轨道部分中,并且音频信号的甚至采样被记录在每个第二尾部音频轨道部分中。

    Multi-channel, multi-band audio equalization
    97.
    发明授权
    Multi-channel, multi-band audio equalization 失效
    多通道,多频段音频均衡

    公开(公告)号:US08199932B2

    公开(公告)日:2012-06-12

    申请号:US11986120

    申请日:2007-11-20

    申请人: Kenji Nakano

    发明人: Kenji Nakano

    IPC分类号: H03G5/00

    CPC分类号: H04S7/301 H04S7/307

    摘要: A signal processing apparatus includes a plurality of equalizers configured to input an audio signal of a corresponding channel among audio signals of a plurality of channels and configured to perform at least gain adjustment on the basis of a set parameter, each of the equalizers being provided in such a manner as to correspond to an audio signal of one of the plurality of channels; a plurality of output sections configured to output each audio signal for each of the plurality of channels, the audio signal being processed by the equalizer; a measurement section configured to measure frequency-amplitude characteristics of the audio signal output from the output section; and a computation section configured to perform a computation process for correcting frequency-amplitude characteristics of an audio signal of each channel on the basis of the measurement result by the measurement section.

    摘要翻译: 信号处理装置包括多个均衡器,其被配置为在多个信道的音频信号中输入相应信道的音频信号,并且被配置为基于设定参数至少执行增益调整,每个均衡器设置在 这样的方式对应于多个频道之一的音频信号; 多个输出部分,被配置为输出所述多个通道中的每一个的每个音频信号,所述音频信号由所述均衡器处理; 测量部分,被配置为测量从所述输出部分输出的所述音频信号的频率 - 幅度特性; 以及计算部,其被配置为基于测量部的测量结果执行用于校正每个声道的音频信号的频率振幅特性的计算处理。

    Audio reproducing apparatus and audio reproducing method
    98.
    发明授权
    Audio reproducing apparatus and audio reproducing method 有权
    音频再现装置和音频再现方法

    公开(公告)号:US08175317B2

    公开(公告)日:2012-05-08

    申请号:US11581665

    申请日:2006-10-16

    申请人: Kenji Nakano

    发明人: Kenji Nakano

    IPC分类号: H04R1/02

    CPC分类号: H04R1/403 H04R3/12

    摘要: An audio reproducing apparatus is disclosed. The audio reproducing apparatus includes a plurality of speaker units and a directivity controlling section. The radiation surfaces of the plurality of speaker units outwardly face. The directivity controlling section controls directivities of the plurality of speaker units so as to form one or a plurality of low sensitivity regions.

    摘要翻译: 公开了一种音频再现装置。 音频再现装置包括多个扬声器单元和方向性控制部分。 多个扬声器单元的辐射表面向外面对。 指向性控制部分控制多个扬声器单元的方向性,以便形成一个或多个低灵敏度区域。

    Signal processing apparatus, signal processing method, and sound field correction system
    99.
    发明授权
    Signal processing apparatus, signal processing method, and sound field correction system 失效
    信号处理装置,信号处理方法和声场校正系统

    公开(公告)号:US08150069B2

    公开(公告)日:2012-04-03

    申请号:US11729210

    申请日:2007-03-28

    申请人: Kenji Nakano

    发明人: Kenji Nakano

    IPC分类号: H03G5/00

    CPC分类号: H03G5/165

    摘要: A signal processing apparatus includes at least one equalization section, each of the equalization section being capable of setting a center frequency, a gain value at the center frequency, and a Q value and allowing set frequency-amplitude characteristics to be applied to an input signal; and a computation section. The computation section performs a center frequency determination process for computing, for target characteristics of the equalization section, a difference from the target characteristics for each area divided by a frequency portion where the gain of the characteristics of the equalization section is small and a frequency portion where the gain of the characteristics of the equalization section is large, a gain value determination process for determining the gain value at the center frequency of the equalization section, and a Q value determination process for setting the determined center frequency and the determined gain value.

    摘要翻译: 信号处理装置包括至少一个均衡部分,每个均衡部分能够设置中心频率,中心频率处的增益值和Q值,并且允许将设定的频率 - 幅度特性施加到输入信号 ; 和计算部。 计算部分执行中心频率确定处理,用于对均衡部分的目标特性计算与均衡部分的特性的增益较小的频率部分所分割的每个区域的目标特性的差异,以及频率部分 其中均衡部分的特性的增益大,用于确定均衡部分的中心频率处的增益值的增益值确定处理以及用于设置所确定的中心频率和确定的增益值的Q值确定处理。

    GAS APPLIANCE JUDGEMENT APPARATUS AND METHOD
    100.
    发明申请
    GAS APPLIANCE JUDGEMENT APPARATUS AND METHOD 有权
    气体装置判定装置和方法

    公开(公告)号:US20110231115A1

    公开(公告)日:2011-09-22

    申请号:US13151376

    申请日:2011-06-02

    IPC分类号: G06F19/00 G01F1/00

    CPC分类号: G01F9/008

    摘要: A gas appliance judgment apparatus and method by which a type of gas appliance in use and the existence of a gas leak can be identified. In operation, noise is removed from measured instantaneous flow volume, whereupon the “length”, “initial flow volume” and “sequence of transited regions” of the variable portion of the flow volume and the “length”, “average value” and “gradient” of the flat portion of the flow volume are extracted. A rule having characteristics data which matches the characteristics of the variable portion and the flat portion of the flow volume is then searched, and points are added respectively for the type of gas appliance and for the existence of a gas leak. When the added points are not less than a previously established threshold value, then the type of gas appliance in use is determined, and appliance type information is output as a judgment result.

    摘要翻译: 一种燃气器具判断装置和方法,通过该装置和方法可以识别使用中的燃气器具类型和气体泄漏的存在。 在操作中,从测量的瞬时流量除去噪声,因此流量的可变部分的“长度”,“初始流量”和“过渡区域的序列”以及“长度”,“平均值”和“ 提取流量的平坦部分的梯度“。 然后搜索具有与可变部分的特性和流量的平坦部分匹配的特征数据的规则,并且分别针对燃气器具的类型和气体泄漏的存在分别添加点。 当添加点不小于先前建立的阈值时,确定使用中的燃气器具的类型,并输出器具类型信息作为判断结果。