Procedure for equalizing distorted data signals
    1.
    发明授权
    Procedure for equalizing distorted data signals 失效
    均衡失真数据信号的步骤

    公开(公告)号:US6134538A

    公开(公告)日:2000-10-17

    申请号:US431656

    申请日:1995-05-02

    摘要: A neural network is provided for equalizing distorted data signals. The data signal to be equalized is coupled via time-delay elements to a group of networks for weighting. The output signals of the networks for weighting are coupled to the input terminals of a plurality of neurons whose outputs are coupled, via a respective amplifier, to input terminals of a further neuron having an output terminals where the equalized data signal can be tapped.

    摘要翻译: 提供了一种用于均衡失真的数据信号的神经网络。 待均衡的数据信号经由时间延迟元件耦合到一组用于加权的网络。 用于加权的网络的输出信号被耦合到多个神经元的输入端,其输出经由相应的放大器耦合到具有输出端子的另外的神经元的输入端,其中均衡的数据信号可以被抽头。

    Head drum for a magnetic tape recorder
    2.
    发明授权
    Head drum for a magnetic tape recorder 失效
    用于磁带录音机的磁头鼓

    公开(公告)号:US06191907B1

    公开(公告)日:2001-02-20

    申请号:US09086007

    申请日:1998-05-27

    IPC分类号: G11B1514

    摘要: A head drum for a magnetic tape apparatus includes a stationary lower cylinder and a rotating upper cylinder on which at least one write/read head is securely arranged and interacts with a magnetic tape with an exchange of electromagnetic signals. Also provided are at least one amplifier which rotates together with an upper cylinder and amplifies the signals coming from the write/read head, and a rotating transformer for transferring electrical signals between the stationary lower cylinder and the rotating upper cylinder. Storage means for electrical energy arranged on the rotating upper cylinder is capable of supplying electrical power to all the electronic components rotating together with the upper cylinder. A controller is securely arranged on the rotating upper cylinder for monitoring the charge state of the storage means and controlling the duration of the energy transfer as a function of the charge state.

    摘要翻译: 用于磁带装置的磁头鼓包括固定的下部气缸和旋转的上部气缸,至少一个读/写头被牢固地布置在其上,并与磁带交换电磁信号。 还提供了至少一个放大器,其与上部气缸一起旋转并放大来自写入/读取头的信号,以及用于在静止的下部气缸和旋转的上部气缸之间传递电信号的旋转变压器。 设置在旋转的上筒上的电能的存储装置能够向与上筒一起旋转的所有电子部件供电。 控制器牢固地布置在旋转的上气缸上,用于监视存储装置的充电状态,并根据充电状态控制能量传输的持续时间。

    Method and apparatus for settting the parameters of an equalizer
    3.
    发明授权
    Method and apparatus for settting the parameters of an equalizer 失效
    用于设定均衡器参数的方法和装置

    公开(公告)号:US5682406A

    公开(公告)日:1997-10-28

    申请号:US424758

    申请日:1995-04-18

    摘要: A method and apparatus for setting the parameters of an equalizer. Equalizers are used for equalizing distorted signals. However, optimum equalization is only achieved when the parameters of the equalizer are optimally set. To set the parameters of an equalizer optimally, the output signal of the equalizer is rectified in a full-wave rectifier. The output signal of the latter is integrated in an integrator. The parameters of the equalizer are set by a microprocessor according to an algorithm. In one embodiment, when the integration time is predetermined, the parameters of the equalizer is changed until the level of the integrated signal becomes a maximum. In another embodiment, when the maximum level of the integrated signal is predetermined, the parameters of the equalizer are changed until the integration time becomes a minimum.

    摘要翻译: 一种用于设置均衡器的参数的方法和装置。 均衡器用于均衡失真信号。 然而,只有当均衡器的参数被最佳地设定时才能实现最佳均衡。 为了最佳地设置均衡器的参数,均衡器的输出信号在全波整流器中整流。 后者的输出信号集成在积分器中。 均衡器的参数由微处理器根据算法设置。 在一个实施例中,当积分时间被预先确定时,均衡器的参数被改变,直到积分信号的电平变为最大值。 在另一个实施例中,当预定积分信号的最大电平时,均衡器的参数被改变直到积分时间变得最小。

    Phase detector for a phase-locked loop
    4.
    发明授权
    Phase detector for a phase-locked loop 有权
    锁相环的相位检测器

    公开(公告)号:US07242738B1

    公开(公告)日:2007-07-10

    申请号:US10049592

    申请日:2000-08-18

    申请人: Edgar Wursthorn

    发明人: Edgar Wursthorn

    IPC分类号: H03D3/24

    摘要: A phased-locked loop phase detector for digital input signals in which digital summed value for a particular number of bits is equal to zero. Sampled and digitized data comprising a delay stage for delaying the data signal by a one or more sampling clock period is supplied to the phase detector as an input signal. The delayed data signal and the undelayed data signal are then supplied to a subtraction stage. The difference between the two input values is formed in this subtraction stage. The processing stage assigns one of a plurality of possible values to the respective differential value. The full differential value range is subdivided in a number of sub-ranges corresponding to the plurality of possible values. All differential values in one sub-range are assigned the same output value. The output of the subtraction stage is supplied to a filter/control stage.

    摘要翻译: 用于数字输入信号的锁相环相位检测器,其中特定位数的数字相加值等于零。 包括用于将数据信号延迟一个或多个采样时钟周期的延迟级的采样和数字化数据被提供给相位检测器作为输入信号。 然后将延迟的数据信号和未延迟的数据信号提供给减法级。 在该减法阶段中形成两个输入值之间的差异。 处理阶段将多个可能值中的一个值分配给相应的差分值。 全差分值范围被细分为对应于多个可能值的子范围的数量。 一个子范围内的所有差分值都被分配相同的输出值。 减法级的输出被提供给滤波器/控制级。

    Method for the control of track following in a recorder
    5.
    发明授权
    Method for the control of track following in a recorder 失效
    记录仪中追踪跟踪的方法

    公开(公告)号:US6078449A

    公开(公告)日:2000-06-20

    申请号:US848119

    申请日:1997-04-28

    IPC分类号: G11B15/467 G11B5/09 G11B15/46

    CPC分类号: G11B15/463

    摘要: A method of controlling track following in a recorder which uses recording in oblique tracks of a magnetic tape without inactive areas between the tracks and wherein data gaps occur in the useful data sequence due to the change of tracks includes the step of filling the time period containing the data gaps with a predetermined sequence of cyclical modifications of code words representing amplitude and degree increments of a symmetrical train of oscillations. A sequence of code words is used to produce incremental portions of the train of symmetrical oscillations whereby a number of incremental portions forms a complete train of symmetrical oscillations. The code words are modified in synchronism with the clock rate at which the useful data of the recorder are clocked.

    摘要翻译: 一种在记录器中控制跟踪的方法,其使用磁道的倾斜轨迹中的记录,而在轨道之间没有无效区域,并且其中由于轨道变化而在有用数据序列中出现的数据间隙包括填充包含 数据间隙具有表示对称振荡系列的振幅和程度增量的代码字的预定的循环修改序列。 一系列代码字用于产生对称振荡列的增量部分,由此多个增量部分形成完整的对称振荡列。 代码字与记录器的有用数据被计时的时钟速率同步地修改。

    Tape recorder having a driver circuit for a matrix head
    6.
    发明授权
    Tape recorder having a driver circuit for a matrix head 失效
    具有用于矩阵头的驱动电路的磁带录音机

    公开(公告)号:US06449112B1

    公开(公告)日:2002-09-10

    申请号:US09416912

    申请日:1999-10-13

    IPC分类号: G11B1512

    CPC分类号: G11B5/4992 G11B5/4976

    摘要: Tape recorder having a group of write heads which are arranged like a matrix in rows and columns, with each write head assigned in one row line and in one column line, and having a driver circuit for passing current through the row and column lines. A write head magnetizes a magnetic tape permanently only when its associated row and column lines have currents applied to them causing magnetic fields that reinforce one another in the magnetic tape. A common row return line is provided to which all the row lines are connected and a common column return line is provided to which all the column lines are connected.

    摘要翻译: 磁带记录器具有一组写入头,其排列成行和列的矩阵,每个写入头分配在一行和一列,并且具有用于使电流通过行和列线的驱动电路。 只有当其相关联的行和列线具有施加到其上的电流时,写磁头永久地磁化磁带,导致在磁带中彼此加强的磁场。 提供了所有行线连接到的公共行返回线,并且提供了所有列线连接到的公共列返回线。