Video signal recording and reproducing apparatus
    2.
    发明授权
    Video signal recording and reproducing apparatus 有权
    视频信号记录和再现装置

    公开(公告)号:US08285109B2

    公开(公告)日:2012-10-09

    申请号:US11685825

    申请日:2007-03-14

    IPC分类号: H04N5/76

    摘要: The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.

    摘要翻译: 本发明的视频信号记录和再现装置包括:接收部分,用于接收电视信号; 图像压缩部分,用于压缩接收到的连续视频信号的每单位时间的信息量; 写入部分,用于经由磁头将作为图像压缩部分的输出获得的压缩视频信号间歇地写入硬盘装置; 读取部分,用于经由磁头从硬盘装置间歇地读出写入的压缩视频信号; 解码部分,用于将读取的压缩视频信号恢复为原始视频信号; 用于显示恢复的视频信号的显示部分; 以及控制部分,用于控制写入部分和读取部分,使得将视频信号写入硬盘装置并从硬盘装置读取预先写入硬盘装置的任意视频信号,同时执行 并不断。

    VIDEO SIGNAL RECORDING AND REPRODUCING APPARATUS
    4.
    发明申请
    VIDEO SIGNAL RECORDING AND REPRODUCING APPARATUS 失效
    视频信号记录和再现设备

    公开(公告)号:US20080063376A1

    公开(公告)日:2008-03-13

    申请号:US11930988

    申请日:2007-10-31

    IPC分类号: H04N7/26

    摘要: The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.

    摘要翻译: 本发明的视频信号记录和再现装置包括:接收部分,用于接收电视信号; 图像压缩部分,用于压缩接收到的连续视频信号的每单位时间的信息量; 写入部分,用于经由磁头将作为图像压缩部分的输出获得的压缩视频信号间歇地写入硬盘装置; 读取部分,用于经由磁头从硬盘装置间歇地读出写入的压缩视频信号; 解码部分,用于将读取的压缩视频信号恢复为原始视频信号; 用于显示恢复的视频信号的显示部分; 以及控制部分,用于控制写入部分和读取部分,使得将视频信号写入硬盘装置并从硬盘装置读取预先写入硬盘装置的任意视频信号,同时执行 并不断。

    Video signal recording and reproducing apparatus
    5.
    发明授权
    Video signal recording and reproducing apparatus 有权
    视频信号记录和再现装置

    公开(公告)号:US07231136B2

    公开(公告)日:2007-06-12

    申请号:US10165266

    申请日:2002-06-07

    IPC分类号: H04N5/917

    摘要: The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.

    摘要翻译: 本发明的视频信号记录和再现装置包括:接收部分,用于接收电视信号; 图像压缩部分,用于压缩接收到的连续视频信号的每单位时间的信息量; 写入部分,用于经由磁头将作为图像压缩部分的输出获得的压缩视频信号间歇地写入硬盘装置; 读取部分,用于经由磁头从硬盘装置间歇地读出写入的压缩视频信号; 解码部分,用于将读取的压缩视频信号恢复为原始视频信号; 用于显示恢复的视频信号的显示部分; 以及控制部分,用于控制写入部分和读取部分,使得将视频信号写入硬盘装置并从硬盘装置读取预先写入硬盘装置的任意视频信号,同时执行 并不断。

    Speech decoding using mix ratio table
    6.
    发明授权
    Speech decoding using mix ratio table 失效
    语音解码使用混合比表

    公开(公告)号:US06377915B1

    公开(公告)日:2002-04-23

    申请号:US09525066

    申请日:2000-03-14

    申请人: Seishi Sasaki

    发明人: Seishi Sasaki

    IPC分类号: G10L1106

    摘要: A decoder compares a spectral envelope value y8 on a frequency axis with a predetermined threshold f9 to identify a voiced region and an unvoiced region. An excitation signal is produced by using excitations suitable for respective frequency regions. An encoder applies the nonuniform quantization to the period of the aperiodic pitch in accordance with its frequency of occurrence. The result of the nonuniform quantization is transmitted together with the quantization result of the unvoiced state and the periodic pitch as one code. A decoder obtains spectral envelope amplitude l8′ from the spectral envelope information, and identifies a frequency band e10′ where the spectral envelope amplitude value is maximized in each of respective bands divided on the frequency axis. A mixing ratio g8′, which is used in mixing a pitch pulse generated in response to the pitch period information and white noise, is determined based on the identified frequency band and voiced/unvoiced discriminating information. A mixing signal of each frequency band is produced in accordance with the mixing ratio. Then, the mixing signals of respective frequency bands are summed up to produce a mixed excitation signal x8′.

    摘要翻译: 解码器将频率轴上的频谱包络值y8与预定阈值f9进行比较,以识别有声区域和无声区域。 通过使用适合于各个频率区域的激励来产生激励信号。 编码器根据其发生频率将非均匀量化应用于非周期性音调的周期。 将非均匀量化的结果与无声状态和周期性音调的量化结果一起发送为一个代码。 解码器从频谱包络信息中获得频谱包络幅度l8',并且识别在频率轴上划分的每个频带中的频谱包络幅度值最大化的频带e10'。 基于所识别的频带和有声/无声识别信息来确定用于混合响应于音调周期信息而产生的音调脉冲和白噪声的混合比g8'。 每个频段的混合信号根据混合比产生。 然后,将各个频带的混合信号加起来产生混合的激励信号x8'。

    Speech coding transmission system and coder and decoder therefor
    7.
    发明授权
    Speech coding transmission system and coder and decoder therefor 失效
    语音编码传输系统及其编码和解码器

    公开(公告)号:US5621760A

    公开(公告)日:1997-04-15

    申请号:US649067

    申请日:1996-05-16

    IPC分类号: H04B14/06 H03M3/04

    CPC分类号: H04B14/068

    摘要: A speech coding transmission system is disclosed in which a coder of a differential coding system quantizes a difference between a predictive value from an adaptive predictor and an input speech signal by an adaptive quantizer in accordance with the level of the latter and to send out the resulting coded signal to transmission medium, and a decoder outputs a reproduced speech signal on the basis of a residual signal obtained by inversely quantizing a received coded signal with an inverse adaptive quantizer and a predictive value from an adaptive predictor. Both or either one of the coder and the decoder includes a comparator-attenuator which attenuates the amplitude of the input signal or reproduced speech signal to a value smaller than a predetermined threshold value and applies to the amplitude-attenuated speech signal to the adaptive predictor.

    摘要翻译: 公开了一种语音编码传输系统,其中差分编码系统的编码器根据自适应量化器根据自适应量化器量化来自自适应预测器的预测值与输入语音信号之间的差异,并发送所得到的 并且解码器基于通过用自适应量化器逆量化接收的编码信号而获得的残差信号和来自自适应预测器的预测值来输出再现的语音信号。 编码器和解码器中的任一个或两者都包括比较器衰减器,其将输入信号的幅度或再现的语音信号衰减到小于预定阈值的值,并将该幅度衰减的语音信号应用于自适应预测器。

    Voice coding communication system and apparatus
    8.
    发明授权
    Voice coding communication system and apparatus 失效
    语音编码通信系统和装置

    公开(公告)号:US5539858A

    公开(公告)日:1996-07-23

    申请号:US261878

    申请日:1994-06-17

    CPC分类号: G10L19/012 H04B1/56

    摘要: A voice coding communication system in case of applying an adaptive differential PCM system in which a discontinuous transmitter is provided at the transmitting side to reduce its power consumption, transmission is suspended during a silent duration, and a pseudo-noise is generated at the receiving side and is used as the reproduced output during the silent duration. Discomfort is avoided in hearing the reproduced voice which is caused by the difference between the level of the pseudo-noise and the level of a background noise at the transmitting side.

    摘要翻译: 在应用自适应差分PCM系统的情况下的语音编码通信系统,其中在发送侧提供不连续发送机以减少其功耗,在静音期间传输被暂停,并且在接收侧产生伪噪声 并在静音期间用作再现的输出。 听到由发声侧的伪噪声的电平与背景噪声的电平之间的差异引起的再生声音的避免不舒服。

    Magnetic head for perpendicular magnetic recording and reproduction
    9.
    发明授权
    Magnetic head for perpendicular magnetic recording and reproduction 失效
    用于垂直磁记录和再现的磁头

    公开(公告)号:US4745506A

    公开(公告)日:1988-05-17

    申请号:US89945

    申请日:1987-08-26

    摘要: A perpendicular magnetic head of high recording and reproducing efficiency which integrally incorporates a step-up transformer. A main pole for picking up a reproduce magnetic flux from a recording medium and applying recording magnetic field thereto is formed of a magnetic thin film. A signal winding formed of a thin film is disposed in the immediate vicinity of the forward end of the main pole so as to have a high conversion sensitivity per turn with respect to the reproduce magnetic flux from the recording medium. The signal winding which itself constitutes a closed circuit interlinks a magnetic path of the step-up transformer, thereby forming a primary winding of the transformer. A secondary winding from which head output is taken out is wound in the magnetic path of the transformer.

    摘要翻译: 具有高记录和再现效率的垂直磁头,其整体结合了升压变压器。 用于从记录介质拾取再现磁通并向其施加记录磁场的主极由磁性薄膜形成。 由薄膜形成的信号绕组设置在主极的前端附近,以便相对于来自记录介质的再现磁通具有高的每转转换灵敏度。 本身构成闭路的信号绕组使升压变压器的磁路相互连接,从而形成变压器的初级绕组。 取出头部输出的次级绕组缠绕在变压器的磁路中。

    Method of manufacturing magnetic recording medium
    10.
    发明授权
    Method of manufacturing magnetic recording medium 失效
    磁记录介质的制造方法

    公开(公告)号:US4477488A

    公开(公告)日:1984-10-16

    申请号:US473766

    申请日:1983-03-10

    CPC分类号: H01F41/20 G11B5/66 G11B5/851

    摘要: In making magnetic recording media by vapor-depositing magnetic metal film containing Co-Cr with 70-90 weight % Co as host material on a high polymer substrate, with or without intermediate layer(s) inbetween, making the high polymer substrate run around a cylindrical can, condition is selected such that linear expansion coefficient of the substrate is 1.0.times.10.sup.-5 -2.9.times.10.sup.-5 /.degree.C. and temperature of the can surface is 150.degree.-300.degree. C.; thereby normal or inverse curling of the resultant recording medium is substantially eliminated.

    摘要翻译: 在制备磁记录介质的过程中,通过将含有70-90重量%Co的Co-Cr作为主体材料的磁性金属膜通过气相沉积在高聚合物衬底上,在其间具有或不具有中间层,使高分子衬底绕着 选择圆筒状,使基板的线膨胀系数为1.0×10 -5 -2.9×10 -5 /℃,罐表面的温度为150〜300℃。 从而基本上消除了所得记录介质的正常或反向卷曲。