Digital information signal recording system
    1.
    发明授权
    Digital information signal recording system 失效
    数字信息记录系统

    公开(公告)号:US4516163A

    公开(公告)日:1985-05-07

    申请号:US508540

    申请日:1983-06-28

    摘要: A digital information recording system comprises a randomized digital signal forming circuit for forming a randomized digital signal by carrying out modulo-2 addition of at least digital information signals of a plurality of channels in a digital signal and a random code sequence which is generated independently, a detector for successively detecting values of each of a predetermined number of words from each of the digital information signals of a plurality of channels in the randomized digital signal, in terms of one word, and generating a detection signal only when values of bits in the one word are all "1" or all "0", a timing circuit for generating a timing signal for every period corresponding to a transmission period of a least significant bit in one word from each of the digital information signals of a plurality of channels, a polarity inverting circuit for passing the randomized digital signal unchanged during a period in which the detection signal is not generated from the detector, and inverting the polarity of the least significant bit in one word from each of the digital information signals of a plurality of channels in the randomized digital signal when simultaneously applied with the detection signal and the timing signal, and a recording circuit for recording a digital signal obtained from the polarity inverting circuit.

    摘要翻译: 数字信息记录系统包括一个随机数字信号形成电路,用于通过对数字信号中的至少数个信道信号和独立产生的随机码序列至少进行模2加法来形成随机数字信号, 一个检测器,用于根据一个字连续地检测随机数字信号中的多个通道的每个数字信息信号中的每一个的预定数量的字的值,并且仅当在一个字中的位的值时产生检测信号 一个字全部为“1”或全部为“0”,定时电路用于在与多个通道的每个数字信息信号中的一个字中的最低有效位的发送周期相对应的每个周期产生定时信号, 极性反转电路,用于在不从d产生检测信号的期间内使随机数字信号不变 并且当同时施加检测信号和定时信号时,将随机数字信号中的多个通道的数字信息信号中的每一个的一个字中的最低有效位的极性反转,以及记录电路 从极性反转电路获得的数字信号。

    Memory circuit write-in system
    2.
    发明授权
    Memory circuit write-in system 失效
    内存电路写入系统

    公开(公告)号:US4561083A

    公开(公告)日:1985-12-24

    申请号:US496589

    申请日:1983-05-20

    CPC分类号: H04N5/956

    摘要: A memory circuit write-in system comprises a first circuit for supplying a digital signal including a time base fluctuation component, where one frame of the digital signal is constituted by at least a synchronizing signal and information data and the digital signal has a first repetition frequency with a period of one frame of the digital signal, a memory circuit for writing therein and reading out therefrom the digital signal supplied from the first circuit, and a second circuit for applying a write-in control signal to the memory circuit. The write-in control signal includes no time base fluctuation component and has a second repetition frequency substantially equal to the first repetition frequency, and the memory circuit is controlled by the write-in control signal so that write-in of the digital signal is carried out with a write-in period in a range of two times within the one frame period.

    摘要翻译: 存储电路写入系统包括:第一电路,用于提供包括时基波动分量的数字信号,其中数字信号的一帧至少由同步信号和信息数据构成,数字信号具有第一重复频率 具有数字信号的一帧的周期,用于在其中写入并从其读出从第一电路提供的数字信号的存储器电路,以及用于将写入控制信号施加到存储器电路的第二电路。 写入控制信号不包括时基波动分量,并且具有基本上等于第一重复频率的第二重复频率,并且存储电路由写入控制信号控制,以便承载数字信号的写入 在一个帧周期内以两次的写入周期输出。

    Synchronizing signal detecting circuit in a digital signal transmitting
system
    3.
    发明授权
    Synchronizing signal detecting circuit in a digital signal transmitting system 失效
    在数字信号发送系统中同步信号检测电路

    公开(公告)号:US4596981A

    公开(公告)日:1986-06-24

    申请号:US615237

    申请日:1984-05-29

    CPC分类号: H04L7/042 H04L7/027 H04L7/048

    摘要: A synchronizing signal detecting circuit is used in a digital signal transmitting system which transmits a digital signal in which signals are time-sequentially multiplexed in terms of blocks, where each of the blocks are made up of digital data which are information signals subjected to a digital modulation, a synchronizing signal having a fixed pattern, and an error checking code arranged at a location separated from a location of the synchronizing signal by a predetermined number of bits. The synchronizing signal detecting circuit comprises a counter which is reset when a synchronizing signal detection output which has been discriminated as being correct by use of the error checking code is continuously obtained for N times, where N is a natural number greater than or equal to two.

    摘要翻译: 在数字信号发送系统中使用同步信号检测电路,该数字信号发送系统发送数字信号,其中信号以块为单位进行时间顺序复用,其中每个块由作为经受数字信号的信息信号的数字数据组成 调制,具有固定模式的同步信号和布置在与同步信号的位置分离预定位数的位置处的错误校验码。 同步信号检测电路包括一个计数器,当通过使用错误校验码被鉴别为正确的同步信号检测输出连续获得N次时,复位,其中N是大于或等于2的自然数 。

    Rotary recording medium having track turns recorded with digital signal
and track turns recorded with analog signal
    4.
    发明授权
    Rotary recording medium having track turns recorded with digital signal and track turns recorded with analog signal 失效
    具有记录有数字信号的轨道匝数的旋转记录介质和用模拟信号记录的轨道匝数

    公开(公告)号:US4660099A

    公开(公告)日:1987-04-21

    申请号:US609193

    申请日:1984-05-11

    IPC分类号: G11B20/02 G11B20/10 H04N5/76

    CPC分类号: G11B20/10 G11B20/02

    摘要: A rotary recording medium has information signals recorded on a spiral or concentric tracks formed thereon as variations in geometrical configuration. The tracks comprise a mixture of digital recorded tracks which are recorded with a first modulated signal and analog recorded tracks which are recorded with a second modulated signal. The first modulated signal is a digital signal which has been time-sequentially multiplexed in terms of blocks at a transmission frequency of 44.1 kHz or a frequency extremely close to 44.1 kHz and has then been subjected to a modulation, where each of the blocks are constituted by a synchronizing signal, error correcting codes, and an error detecting code, which are added to a plurality of channels of digital data which are digitally modulated information signals. The second modulated signal is an analog modulated analog information signal at least including a composite video signal. A number of blocks recorded in one track turn of the digital recorded tracks is approximately equal to a product of the transmission frequency and a duration of one revolution of the rotary recording medium.

    摘要翻译: 旋转记录介质具有记录在其上形成的螺旋或同心轨迹上的信息信号,其中几何构型的变化。 轨道包括用第一调制信号记录的数字记录磁道和用第二调制信号记录的模拟记录磁道的混合。 第一调制信号是以44.1kHz的发送频率或非常接近44.1kHz的频率按照块进行时间顺序复用的数字信号,然后进行调制,其中每个块被构成 通过同步信号,纠错码和检错码,它们被加到数字数据的多个通道中,这些通道是数字调制的信息信号。 第二调制信号是至少包括复合视频信号的模拟调制模拟信息信号。 记录在数字记录轨道的一个轨迹中的多个块大致等于传输频率与旋转记录介质的一圈的持续时间的乘积。

    Recording medium, apparatus and method related to information representing tunes
    5.
    发明授权
    Recording medium, apparatus and method related to information representing tunes 有权
    与表示曲调的信息相关的记录介质,装置和方法

    公开(公告)号:US08249421B2

    公开(公告)日:2012-08-21

    申请号:US11712913

    申请日:2007-03-02

    IPC分类号: H04N5/77

    摘要: An information recording medium includes a recording area for an auxiliary signal, and a recording area for a main signal. The auxiliary-signal recording area and the main-signal recording area are successively arranged. The main-signal recording area stores first information, second information, and third information. The first information represents plural tunes. The second information includes playback control information for separating the tunes into groups and implementing playback of the tunes group by group. The third information includes interactive data for permitting an access to the first information of the tunes group by group.

    摘要翻译: 信息记录介质包括用于辅助信号的记录区域和用于主信号的记录区域。 辅助信号记录区域和主信号记录区域被连续布置。 主信号记录区域存储第一信息,第二信息和第三信息。 第一个信息表示多个曲调。 第二信息包括用于将乐曲分成组并且逐组地实现乐曲的播放的回放控制信息。 第三信息包括用于允许逐组访问乐曲的第一信息的交互式数据。

    Audio signal processing apparatus

    公开(公告)号:US20090228288A1

    公开(公告)日:2009-09-10

    申请号:US12453601

    申请日:2009-05-15

    IPC分类号: G10L19/00

    摘要: An audio signal encoding apparatus includes a device for compressing multiple-channel digital audio signals into compression-resultant multiple-channel signals respectively. The multiple-channel digital audio signals relate to a sampling frequency and a quantization bit number. The compression-resultant multiple-channel signals, a signal representative of the sampling frequency, and a signal representative of the quantization bit number are formatted into a formatting-resultant signal. The formatting-resultant signal contains a sub packet and a sync information portion. The sub packet contains at least portions of the compression-resultant multiple-channel signals. The sync information portion contains the signal representative of the sampling frequency and the signal representative of the quantization bit number.

    Signal compressing apparatus
    10.
    发明授权
    Signal compressing apparatus 有权
    信号压缩装置

    公开(公告)号:US07394973B2

    公开(公告)日:2008-07-01

    申请号:US10795297

    申请日:2004-03-09

    IPC分类号: H04N5/91 H04N5/00

    摘要: An input signal is quantized into a quantization-resultant signal. The quantization-resultant signal is compressed into a compression-resultant signal. The compression-resultant signal is formatted into a formatting-resultant signal corresponding to a predetermined format for a digital recording disc. The formatting-resultant signal includes segments corresponding to user data areas prescribed in the predetermined format. The compression-resultant signal is placed in the segments of the formatting-resultant signal. The formatting-resultant signal is encoded into an encoding-resultant signal of a CD format. The encoding-resultant signal is recorded on a recording medium.

    摘要翻译: 输入信号被量化为量化结果信号。 量化结果信号被压缩成压缩结果信号。 压缩结果信号被格式化成对应于数字记录盘的预定格式的格式化结果信号。 格式化结果信号包括与以预定格式规定的用户数据区域相对应的段。 压缩结果信号被放置在格式化结果信号的段中。 格式化结果信号被编码成CD格式的编码结果信号。 编码结果信号被记录在记录介质上。