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12 条记录 (耗时 0.02 秒)

    Method and apparatus for controlling deployment of a tape transport member
    1.
    发明授权
    Method and apparatus for controlling deployment of a tape transport member 失效
    用于控制带传送构件的展开的方法和装置

    公开(公告)号：US4800450A

    公开(公告)日：1989-01-24

    申请号：US850995

    申请日：1986-04-11

    申请人： David R. Rodal ,  Nathan W. Osborn

    发明人： David R. Rodal ,  Nathan W. Osborn

    IPC分类号： G11B15/18 ,  G11B15/43 ,  G11B15/665 ,  G11B15/46 ,  G11B15/48

    CPC分类号： G11B15/6653 ,  G11B15/18 ,  G11B15/43

    摘要： Tape guides of a magnetic tape transport machine are controlled during movement by sensing the position of the member as it moves along a defined path in varying velocity corresponding to the position. The member is initially accelerated at a selected rate to a maximum velocity which is then maintained until a distance close to the end position is reached. Velocity is then reduced at a selected rate until another position closer to the end position is reached. At this position a final velocity is maintained until the end is reached. A determination is made of how closely the second distance from the end coincided with reaching the final velocity. The length of the first distance from the end position is adjusted to reduce the difference between the coincidence of reaching the second distance and the final velocity. Further, the sensed final position of the member is retained as the target final position for the subsequent operation.

    摘要翻译： 磁带传送机的磁带引导件在移动期间通过感测构件沿着与所述位置相对应的变化速度沿着限定的路径移动的位置而被感测。 该构件最初以选定的速率加速至最大速度，然后将其保持到达到接近终点位置的距离。 然后以选定的速率降低速度，直到达到更接近终点位置的另一位置。 在该位置，保持最终速度直到达到最终速度。 确定距离端部的第二距离与达到最终速度是一致的。 调整从终端位置开始的第一距离的长度，以减小到达第二距离的重合与最终速度之间的差异。 此外，将感测到的构件的最终位置保持为用于后续操作的目标最终位置。

    Circuit for detecting the end of a tape by counting reel revolutions
    2.
    发明授权
    Circuit for detecting the end of a tape by counting reel revolutions 失效
    通过计数卷轴转数来检测胶带末端的电路

    公开(公告)号：US4866547A

    公开(公告)日：1989-09-12

    申请号：US176516

    申请日：1988-04-01

    申请人： David R. Rodal ,  Nathan W. Osborn

    发明人： David R. Rodal ,  Nathan W. Osborn

    IPC分类号： G11B15/03 ,  G11B15/093 ,  G11B15/48 ,  G11B15/54

    CPC分类号： G11B15/54 ,  G11B15/093 ,  G11B15/48

    摘要： An end-of-tape detection apparatus provides a constant accumulated total of the revolutions of the supply and takeup reels relative to the true end-of-tape defined by the leader-to-tape splice. Counter means stores a value indicative of the true end-of-tape, and also counts and stores the accumulated total of revolutions as the tape is wound onto a reel. Thereafter as tape is pulled from the reel, the approaching end-of-tape is accurately known in terms of the remaining revolutions of the reel. A microprocessor uses the stored value to determine the point at which deceleration of the tape should begin, whereby the tape rapidly is decelerated to a selected speed just prior to true end-of-tape. The tape is stopped upon sensing the leader-to-tape splice.

    Ambient light insensitive circuit with frequency matching
    3.
    发明授权
    Ambient light insensitive circuit with frequency matching 失效
    环境光敏电路与频率匹配

    公开(公告)号：US4730108A

    公开(公告)日：1988-03-08

    申请号：US851000

    申请日：1986-04-11

    申请人： David R. Rodal ,  Nathan W. Osborn

    发明人： David R. Rodal ,  Nathan W. Osborn

    IPC分类号： G01V8/12 ,  G11B15/08 ,  G01V9/04

    CPC分类号： G11B15/08 ,  G01V8/12

    摘要： An optical sensing circuit useful for detecting the end of a moving tape in a tape transport includes a light source and a light sensor which are closely spaced across a gap. The radiation output of the light source is modulated at a selected frequency which is determined by the operating frequency of a frequency detector. In the absence of a light obstruction, such as passage of the tape in the optical path between the light source and the light sensor, the modulated output from the light source is detected by the sensor. The processed signal from the sensor, which is characterized by the modulation frequency, is applied to the frequency detector. The detector recognizes only those signals having the modulated frequency, and does not respond to signals of different frequencies, which may result from impingement of other radiation than that from the light source on the photosensor.

    摘要翻译： 用于检测带传送中的移动带的端部的光学感测电路包括在间隙上紧密间隔开的光源和光传感器。 光源的辐射输出以由频率检测器的工作频率确定的选定频率进行调制。 在不存在诸如光源和光传感器之间的光路中的光带通过的光障碍物时，由传感器检测来自光源的调制输出。 来自传感器的处理信号，其特征在于调制频率，被施加到频率检测器。 检测器仅识别具有调制频率的那些信号，并且不响应不同频率的信号，这可能是由于光传感器上光源的其他辐射的撞击而产生的。

    Method and apparatus for encoding a user interface
    6.
    发明授权
    Method and apparatus for encoding a user interface 有权
    用于编码用户界面的方法和装置

    公开(公告)号：US07091968B1

    公开(公告)日：2006-08-15

    申请号：US09359561

    申请日：1999-07-22

    申请人： Edward A. Ludvig ,  Donald F. Gordon ,  Nathan W. Osborn ,  Sadik Bayrakeri

    发明人： Edward A. Ludvig ,  Donald F. Gordon ,  Nathan W. Osborn ,  Sadik Bayrakeri

    IPC分类号： H04N5/445

    CPC分类号： H04N21/4532 ,  H04N5/44543 ,  H04N5/45 ,  H04N7/163 ,  H04N7/165 ,  H04N21/2365 ,  H04N21/4314 ,  H04N21/4347 ,  H04N21/482 ,  H04N21/4821 ,  H04N21/6547 ,  H04N21/84

    摘要： A method and apparatus for combining video frame sequences with a video display of an interactive program guide (IPG). The apparatus comprises a plurality of compositors that combine background information, video frame sequences and program guide graphics into a single video frame sequence. The sequence is then digitally encoded to form an MPEG-like bitstream. The same background information and informational video is composited with a different program guide graphic to form another video sequence that is also encoded. A plurality of such sequences are produced with each sequence having a different program guide graphic. Each sequence is encoded and then multiplexed into a transport stream such that all the encoded sequences are transmitted to a subscriber's terminal using a single transport stream. As such, the subscriber can transition from one program guide to the next without interruption of the background or video display as the program guide graphic is changed.

    摘要翻译： 一种用于将视频帧序列与交互式节目指南（IPG）的视频显示相结合的方法和装置。 该装置包括将背景信息，视频帧序列和节目指南图形组合成单个视频帧序列的多个合成器。 然后将该序列数字编码以形成MPEG类似比特流。 相同的背景信息和信息视频与不同的节目指南图形合成以形成也被编码的另一视频序列。 产生多个这样的序列，每个序列具有不同的节目指南图形。 每个序列被编码，然后被复用到传输流中，使得所有的编码序列都使用单个传输流传输到用户的终端。 因此，当节目指南图形改变时，用户可以从一个节目指南转换到下一个，而不会中断背景或视频显示。

    Calibration of Multiple Aperture Ultrasound Probes
    10.
    发明申请
    Calibration of Multiple Aperture Ultrasound Probes 有权
    多孔超声探头的校准

    公开(公告)号：US20140043933A1

    公开(公告)日：2014-02-13

    申请号：US13964701

    申请日：2013-08-12

    申请人： Artem Belevich ,  Josef R. Call ,  Bruce R. Ritzi ,  Nathan W. Osborn

    发明人： Artem Belevich ,  Josef R. Call ,  Bruce R. Ritzi ,  Nathan W. Osborn

    IPC分类号： A61B8/00

    CPC分类号： A61B8/587 ,  A61B6/584 ,  A61B8/12 ,  A61B8/4477 ,  A61B8/4488 ,  A61B8/4494 ,  A61B8/483 ,  G01S7/52052

    摘要： The quality of ping-based ultrasound imaging is dependent on the accuracy of information describing the precise acoustic position of transmitting and receiving transducer elements. Improving the quality of transducer element position data can substantially improve the quality of ping-based ultrasound images, particularly those obtained using a multiple aperture ultrasound imaging probe, i.e., a probe with a total aperture greater than any anticipated maximum coherent aperture width. Various systems and methods for calibrating element position data for a probe are described.

    摘要翻译： 基于ping的超声成像的质量取决于描述发送和接收传感器元件的精确声位置的信息的准确性。 提高换能器元件位置数据的质量可以显着地提高基于乒乓的超声图像的质量，特别是使用多孔超声成像探针，即具有大于任何预期的最大相干孔径宽度的总孔径的探针获得的超声图像的质量。 描述用于校准探针的元件位置数据的各种系统和方法。