Wobble detection for playback of optical recording media
    11.
    发明申请
    Wobble detection for playback of optical recording media 失效
    摇摆检测用于播放光学记录介质

    公开(公告)号:US20050094520A1

    公开(公告)日:2005-05-05

    申请号:US10975787

    申请日:2004-10-28

    CPC分类号: G11B19/125

    摘要: The present invention relates to a method and a device for detecting the type of wobble on an optical recording medium. According to the invention, a programmable digitally tuned oscillator is provided for detecting the wobble at different frequencies and the wobble signal is converted to the base band. Favorably the consistency of the phase of the wobble together with the amplitude of the wobble is used for verifying the presence of the wobble. For this purpose a Cartesian to Polar converter is provided.

    摘要翻译: 本发明涉及一种用于检测光学记录介质上摆动类型的方法和装置。 根据本发明,提供了一种可编程数字调谐振荡器,用于检测不同频率的摆动,并将摆动信号转换为基带。 有利地,摆动相位的一致性与摆动的幅度一起用于验证摆动的存在。 为此,提供了笛卡尔到极地转换器。

    Thermometer code digital to audio converter
    12.
    发明授权
    Thermometer code digital to audio converter 失效
    温度计代码数字到音频转换器

    公开(公告)号:US06778118B2

    公开(公告)日:2004-08-17

    申请号:US10428620

    申请日:2003-05-02

    IPC分类号: H03M166

    摘要: The invention relates to a method for converting a digital signal an analogue signal and to a digital to analogue converter comprising means for converting a digital signal to a thermometer coded signal, means for randomizing the thermometer coded signal, means for controlling the means for randomizing based on the digital signal and means for converting the randomized signal to analogue.

    摘要翻译: 本发明涉及一种将模拟信号的数字信号转换成数模转换器的方法,包括将数字信号转换为温度计编码信号的装置,用于随机化温度计编码信号的装置,用于控制用于随机化的装置的装置 对数字信号和用于将随机信号转换为模拟的装置。

    Circuit for correction of deflection errors in a television display
    13.
    发明授权
    Circuit for correction of deflection errors in a television display 失效
    用于校正电视显示器中偏转误差的电路

    公开(公告)号:US06362579B1

    公开(公告)日:2002-03-26

    申请号:US09588872

    申请日:2000-06-06

    IPC分类号: G09G104

    CPC分类号: H04N3/2335

    摘要: A circuit for correction of deflection errors in a television set, in which a correction current having alternate forward-sweep and flyback periods is supplied to a correction coil for an error parameter. An amplitude of the correction current is reduced during a time window which corresponds to the flyback period and in which no visible picture is displayed.

    摘要翻译: 一种用于校正电视机中的偏转误差的电路,其中具有交替的前扫和反激周期的校正电流被提供给用于误差参数的校正线圈。 在对应于回扫周期的时间窗口内,校正电流的幅度减小,并且其中不显示可视图像。

    Driving circuit with several sensors
    14.
    发明授权
    Driving circuit with several sensors 失效
    驱动电路与几个传感器

    公开(公告)号:US5847592A

    公开(公告)日:1998-12-08

    申请号:US617765

    申请日:1996-09-20

    CPC分类号: H03K5/082

    摘要: Control circuit for producing output voltages from a plurality of sensor signals, wherein each of the sensor signals are identical and mutually phase shifted. The control circuit comprises a plurality of comparators for producing the output voltages, wherein each comparator is respectively supplied with one of the sensor signals and with an amount of hysteresis which depends on the amplitude of one or more of the respective other sensor signals. The control circuit further comprises electronic circuitry for deriving the respective amount of comparator hysteresis for each of the comparators from the amplitude of one or more of the respective other sensor signals.

    摘要翻译: PCT No.PCT / EP94 / 03050 Sec。 371日期:1996年9月20日 102(e)1996年9月20日PCT PCT 1994年9月13日PCT公布。 公开号WO95 / 08869 日期1995年3月30日用于从多个传感器信号产生输出电压的控制电路,其中每个传感器信号相同并相互相移。 控制电路包括用于产生输出电压的多个比较器,其中每个比较器分别被提供有一个传感器信号,并具有取决于相应的其它传感器信号中的一个或多个的振幅的滞后量。 控制电路还包括电子电路,用于从相应的其它传感器信号中的一个或多个的幅度导出每个比较器的相应比较器滞后量。

    Data Bus Interface With Interruptible Clock
    16.
    发明申请
    Data Bus Interface With Interruptible Clock 有权
    具有可中断时钟的数据总线接口

    公开(公告)号:US20090024781A1

    公开(公告)日:2009-01-22

    申请号:US12223306

    申请日:2007-01-11

    IPC分类号: G06F13/14

    摘要: In a data bus with asynchronous data transmission via a clock and a data line, the transmitted data are ascertained by sampling with a multiple of the data rate of the data bus. Sampling is done in this case with a clock which is not synchronous with the asynchronous clock of the data bus. For avoiding interferences which develop due to the unnecessary operation of the interface circuit with a high frequency clock when no data are currently transmitted, a control circuit is provided for detecting the beginning and the end of a data transmission. Only at the beginning of a data transmission, the interface circuit will be supplied with the required clock. After the end of the data transmission, the clock for the interface circuit will be switched off again. The control circuit is preferably designed as a state machine which reacts, without the need for clock signals, to the states on the data and clock line of the data bus.

    摘要翻译: 在通过时钟和数据线进行异步数据传输的数据总线中,通过以数据总线的数据速率的倍数进行采样来确定所发送的数据。 在这种情况下,采用与数据总线的异步时钟不同步的时钟进行采样。 为了避免当没有数据当前被发送时由于具有高频时钟的接口电路的不必要的操作而产生的干扰,提供了一种用于检测数据传输的开始和结束的控制电路。 只有在数据传输开始时,接口电路才会提供所需的时钟。 数据传输结束后,接口电路的时钟将再次关闭。 控制电路优选地被设计为状态机,其不需要时钟信号来响应数据总线的数据和时钟线上的状态。

    Wobble detection for playback of optical recording media
    17.
    发明授权
    Wobble detection for playback of optical recording media 失效
    摇摆检测用于播放光学记录介质

    公开(公告)号:US07436740B2

    公开(公告)日:2008-10-14

    申请号:US10975787

    申请日:2004-10-28

    IPC分类号: G11B5/09

    CPC分类号: G11B19/125

    摘要: The present invention relates to a method and a device for detecting the type of wobble on an optical recording medium. According to the invention, a programmable digitally tuned oscillator is provided for detecting the wobble at different frequencies and the wobble signal is converted to the base band. Favorably the consistency of the phase of the wobble together with the amplitude of the wobble is used for verifying the presence of the wobble. For this purpose a Cartesian to Polar converter is provided.

    摘要翻译: 本发明涉及一种用于检测光学记录介质上摆动类型的方法和装置。 根据本发明,提供了一种可编程数字调谐振荡器,用于检测不同频率的摆动,并将摆动信号转换为基带。 有利地,摆动相位的一致性与摆动的幅度一起用于验证摆动的存在。 为此,提供了笛卡尔到极地转换器。

    Device for convergence correction in a television receiver
    18.
    发明授权
    Device for convergence correction in a television receiver 失效
    用于电视接收机中的会聚校正的装置

    公开(公告)号:US06281951B1

    公开(公告)日:2001-08-28

    申请号:US09231343

    申请日:1999-01-13

    IPC分类号: H04N928

    CPC分类号: H04N9/28

    摘要: The invention relates to a television receiver, in particular a projection television receiver having red, green and blue monochromatic picture tubes, the images of which are projected onto a picture screen. Each picture tube is assigned a correction device comprising a convergence circuit. The convergence circuit is assigned a memory in which correction values for the convergence correction of the three picture tubes are stored. In accordance with the correction values, the convergence circuit generates control signals, which are output to at least one correction coil where each correction coil has one driver circuit. A correction current is applied to the associated correction coil to correct image defects visible on each picture tube. The convergence circuit has control arrangement where the output signals coupled to the correction devices can be influenced in such a way that the same correction is always effected on the picture screen for a specific correction value, independently of the gain of the respective driver circuit. The invention also relates to a method for determining the control signal.

    摘要翻译: 本发明涉及一种电视接收机,尤其涉及具有红,绿,蓝单色显像管的投影电视接收机,其图像被投影到画面上。 每个显像管被分配有包括会聚电路的校正装置。 会聚电路被分配存储器,其中存储三个显像管的会聚校正的校正值。 根据校正值,会聚电路产生控制信号,该控制信号被输出到每个校正线圈具有一个驱动电路的至少一个校正线圈。 校正电流被施加到相关联的校正线圈以校正每个显像管上可见的图像缺陷。 汇聚电路具有控制结构,其中耦合到校正装置的输出信号可以受到影响,使得与图像驱动电路的增益无关地,总是对图像屏幕进行与特定校正值相同的校正。 本发明还涉及一种用于确定控制信号的方法。

    Method for obtaining signals in electronic devices by means of
interpolation between interpolation point values
    19.
    发明授权
    Method for obtaining signals in electronic devices by means of interpolation between interpolation point values 失效
    通过内插点值之间的插值获得电子设备信号的方法

    公开(公告)号:US6072544A

    公开(公告)日:2000-06-06

    申请号:US822155

    申请日:1997-03-17

    摘要: A method is proposed for obtaining signals in electronic devices by means of interpolation between interpolation point values (W0 to W12), the interpolation point values (W0 to W12) being distributed linearly over a region. A number of interpolation values are calculated in each case at a specific interval between the interpolation point values (W0 to W12). The calculation of the interpolation values is then performed as follows: Firstly, a correction step value (a to 1) is determined in each case for an interval bounded by two interpolation point values (W0 to W12) by linear interpolation between these interpolation point values (W0 to W12) . These correction step values (a to 1) are calculated for all intervals. The calculation of the interpolation value in the current interval is then performed such that apart from the correction step value (a to 1) for the current interval use is also made at least of the correction step value (a to 1) of the preceding and/or of the following interval. As a result, the interpolation curve is laid smoothly through the intervals, and pronounced discontinuities in the gradient of the interpolation curve are avoided.

    摘要翻译: 提出了一种通过插补点值(W0至W12)之间的插值获得电子设备中的信号的方法,在区域上线性分布插值点值(W0至W12)。 在各种情况下,以内插点值(W0〜W12)之间的特定间隔计算出多个内插值。 然后如下执行内插值的计算:首先,通过这些内插点值之间的线性插值,在每种情况下,通过两个内插点值(W0至W12)界定的间隔来确定校正步长值(a至1) (W0〜W12)。 对于所有间隔计算这些校正步骤值(a至1)。 然后执行当前间隔中的内插值的计算,使得除了当前间隔使用的校正步长值(a至1)之外,还至少进行前面的校正步骤值(a至1)和 /或以下间隔。 结果,内插曲线通过间隔平滑地平缓,并且避免了内插曲线的梯度中显着的不连续性。