利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.016 秒)

    Playback unit for a long-playing record of a time division multiplexed audio signal
    11.
    发明授权
    Playback unit for a long-playing record of a time division multiplexed audio signal 失效
    用于时分复用音频信号的长时间播放记录的播放单元

    公开(公告)号：US4022986A

    公开(公告)日：1977-05-10

    申请号：US464787

    申请日：1974-04-29

    申请人： Kees Teer ,  Peter Johannes Michiel Janssen ,  Laurentius Antonius Peter Maria DE Bot

    发明人： Kees Teer ,  Peter Johannes Michiel Janssen ,  Laurentius Antonius Peter Maria DE Bot

    IPC分类号： G11B23/36 ,  G11B7/00 ,  G11B7/004 ,  G11B7/005 ,  G11B20/00 ,  G11B20/10 ,  G11B20/12 ,  G11B21/08 ,  G11B23/00 ,  G11B27/10 ,  G11B27/30

    CPC分类号： G11B20/10527 ,  G11B20/00007 ,  G11B20/00992 ,  G11B20/1251 ,  G11B21/085 ,  G11B23/0007 ,  G11B27/105 ,  G11B27/30 ,  G11B7/005

    摘要： A system comprising a playback unit and an associated long-playing record on which sound information is recorded in a time division multiplex code on several tracks. Upon reproduction the same track is scanned n times with the aid of a beam of light before this beam of light is directed to the next track. With the aid of a sampling gate the pulses comprising the sound information in time division multiplex code and associated with a first sound channel are sampled with the aid of said sampling gate while during a second revolution pulses from a second sound channel etc. are sampled.In order to operate this sampling gate in synchronism with the scanning of said pulses the playback unit comprises first synchronizing means responding to pulses also comprising the sound information. Furthermore, at the commencement of each track, starting pulses are provided to which second synchronizing means respond. The output signals thereof control the first synchronizing means and a pivoting mirror reflecting the beam of light which after the record has made n revolutions with one and the same track being scanned is pivoted so that the beam of light is directed to the next track to be scanned. In another embodiment the pulses comprising the sound information are distributed in m groups of pulses 1 to n over a track and each group is preceded by a group pulse to which third synchronizing means respond. The output signals of these third synchronizing means control the first synchronizing means.

    摘要翻译： 一种包括重放单元和相关联的长播记录的系统，在多个轨道上以时分复用码的形式在其上记录声音信息。 在再生之前，借助于光束，将相同的轨道扫描n次，然后该光束被引导到下一个轨道。 借助于采样门，借助于所述采样门对包括时分多路复用码中的声音信息和与第一声道相关联的脉冲进行采样，而在第二次旋转期间，来自第二声道等的脉冲被采样。

    Digital driving of matrix display driver by conversion and capacitive charging
    12.
    发明授权
    Digital driving of matrix display driver by conversion and capacitive charging 失效
    矩阵显示驱动器的数字驱动通过转换和电容充电

    公开(公告)号：US5712634A

    公开(公告)日：1998-01-27

    申请号：US561961

    申请日：1995-11-22

    申请人： Peter Johannes Michiel Janssen

    发明人： Peter Johannes Michiel Janssen

    IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  H03M1/66

    CPC分类号： G09G3/2011 ,  G09G3/3688 ,  G09G2310/027

    摘要： A driver for a matrix display successively stores digital data codes. During a first time interval, the driver charges a capacitor coupled to its output to a voltage level represented by the most-significant bits of a stored data code. During a second time interval, the driver shifts the voltage on the capacitor by a magnitude represented by the least significant bits of the stored data code.

    摘要翻译： 用于矩阵显示的驱动器依次存储数字数据代码。 在第一时间间隔期间，驱动器将耦合到其输出的电容器充电到由存储的数据代码的最高有效位表示的电压电平。 在第二时间间隔期间，驱动器将电容器上的电压移动由存储的数据代码的最低有效位所表示的幅度。

    Device for reading a disk-shaped record carrier with time base correction
    14.
    发明授权
    Device for reading a disk-shaped record carrier with time base correction 失效
    用于读取具有时基校正的盘形记录载体的装置

    公开(公告)号：US4005260A

    公开(公告)日：1977-01-25

    申请号：US587636

    申请日：1975-06-17

    申请人： Peter Johannes Michiel Janssen

    发明人： Peter Johannes Michiel Janssen

    IPC分类号： G05D3/14 ,  G11B7/08 ,  G11B7/095 ,  H04N5/76

    CPC分类号： G05D3/14 ,  G11B7/081 ,  G11B7/0953 ,  H04N5/7605

    摘要： Device for reading-out a disk-shaped record carrier. To compensate for time-base errors of the detected signal caused by eccentricity or out-of-roundness of the record carrier, a tangential tracking system is provided with which the tangential position of the scanning point on the record carrier can be controlled. A control signal for this tangential tracking system is obtained by extracting the line synchronizing signal from the detected video signal. By ensuring through the use of a filter element that the overall transfer function of the control system exhibits a band-pass characteristic about the frequency which corresponds to the speed of the record carrier, a suitable tangential tracking is ensured.

    摘要翻译： 用于读出盘形记录载体的装置。 为了补偿由记录载体的偏心或不圆度引起的检测信号的时基误差，提供了切向跟踪系统，可以控制记录载体上的扫描点的切向位置。 通过从检测到的视频信号中提取行同步信号，获得用于该切向跟踪系统的控制信号。 通过使用滤波器元件，控制系统的整体传递函数表现出关于对应于记录载体的速度的频率的带通特性，确保了适当的切向跟踪。

    Color television system in which the chrominance subcarrier is locked to the frequency-modulated luminance signal
    15.
    发明授权
    Color television system in which the chrominance subcarrier is locked to the frequency-modulated luminance signal 失效
    色度副载波被锁定到调频亮度信号的彩色电视系统

    公开(公告)号：US3982272A

    公开(公告)日：1976-09-21

    申请号：US466626

    申请日：1974-05-03

    申请人： Leonardus Adrianus Johannes Verhoeven ,  Maarten Rutger DE Haan ,  Peter Johannes Michiel Janssen

    发明人： Leonardus Adrianus Johannes Verhoeven ,  Maarten Rutger DE Haan ,  Peter Johannes Michiel Janssen

    IPC分类号： G11B20/02 ,  H04N9/85 ,  H04N9/86 ,  H04N9/40 ,  H04N5/79 ,  H04N9/39

    CPC分类号： H04N9/86

    摘要： A color television system for transmitting a color television signal, specifically for recording on and subsequently reproducing from a record carrier. The color television signal to be transmitted contains a first carrier which is frequency-modulated with the luminance information and a second carrier which is modulated with the chrominance information, whose frequency lies between zero and the first-order lower side band of the modulated first carrier which corresponds to the highest modulation frequency. Said second carrier does not have a fixed frequency, but is locked to the instantaneous frequency of the modulated first carrier by a constant integral ratio. Depending on the characteristics of the transmission medium and the signal processing equipment said ratio is preferably two or three.

    摘要翻译： 一种用于发送彩色电视信号的彩色电视系统，专门用于在记录载体上记录和随后再现。 要传输的彩色电视信号包含用亮度信息进行频率调制的第一载波和用色度信息进行调制的第二载波，频率位于调制的第一载波的零级和低级边带之间 其对应于最高调制频率。 所述第二载波不具有固定频率，而是通过恒定的积分比锁定到调制的第一载波的瞬时频率。 根据传输介质和信号处理设备的特性，所述比例优选为两或三。