Personal object detector
    1.
    发明授权
    Personal object detector 失效
    个人物体探测器

    公开(公告)号:US5724313A

    公开(公告)日:1998-03-03

    申请号:US637552

    申请日:1996-04-25

    摘要: A personal object or obstacle detector apparatus comprises a continuous transmission frequency modulation (CTFM) ranging system and an audio output device. The CTFM ranging system transmits a frequency-swept pressure wave, receives a reflected frequency-swept pressure wave from at least one object, and forms an audio signal based upon a frequency difference between the frequency-swept pressure wave and the reflected frequency-swept pressure wave the audio signal having an amplitude dependent upon size of the object. The audio output device produces an acoustic pressure wave in dependence upon the audio signal. In a preferred embodiment, the acoustic pressure wave contains separate tones for each of the objects detected, wherein each tone has a pitch dependent upon the distance from the CTFM ranging system to the corresponding object. Another embodiment utilizes a pair of CTFM ranging systems to produce a stereo auditory map of objects and obstacles.

    摘要翻译: 个人物体或障碍物检测装置包括连续传输频率调制(CTFM)测距系统和音频输出装置。 CTFM测距系统发射频率扫描压力波,从至少一个物体接收反射的频率扫描压力波,并且基于频率扫描压力波和反射频率扫描压力之间的频率差来形成音频信号 对具有取决于对象大小的幅度的音频信号进行波动。 音频输出装置根据音频信号产生声压波。 在优选实施例中,声压波包含用于检测到的每个物体的单独音调,其中每个音调具有取决于从CTFM测距系统到相应对象的距离的音调。 另一个实施例利用一对CTFM测距系统产生对象和障碍物的立体声听觉图。

    Personal object detector with enhanced stereo imaging capability
    2.
    发明授权
    Personal object detector with enhanced stereo imaging capability 失效
    具有增强的立体成像能力的个人物体探测器

    公开(公告)号:US6011754A

    公开(公告)日:2000-01-04

    申请号:US33211

    申请日:1998-03-02

    摘要: A personal object or obstacle detector apparatus with enhanced stereo imaging capability includes a sonar system having dual receivers with field lobes positioned based on psychoacoustic considerations such as interaural intensity difference (IID) and interaural time difference (ITD). Receiver field pattern shapes and directions are selected to match the natural IID and ITD associated with human hearing. In one embodiment, dual receivers are used with a common transmitter while another embodiment utilizes two transmitter/receiver pairs with the transmitter and receiver collocated.

    摘要翻译: 具有增强的立体成像能力的个人物体或障碍物检测器装置包括具有双接收器的声纳系统,所述双接收器具有基于诸如颅内强度差异(IID)和心律时间差(ITD)的心理声学考虑而定位的视野瓣。 接收器场图案形状和方向被选择以匹配与人类听觉相关联的自然IID和ITD。 在一个实施例中,双接收机与公共发射机一起使用,而另一个实施例利用与发射机和接收机并置的两个发射机/接收机对。

    Position detecting system and method
    3.
    发明授权
    Position detecting system and method 有权
    位置检测系统及方法

    公开(公告)号:US07257506B2

    公开(公告)日:2007-08-14

    申请号:US11007067

    申请日:2004-12-07

    IPC分类号: G01L25/00 G01B7/14

    CPC分类号: G01D5/2525

    摘要: A position detection system for locating an object including a magnetic field generator is disclosed. The position detection system also includes an array of parallel conductors responsive to a magnetic field generated by the magnetic field generator and a plurality of receivers each associated with a parallel conductor. The parallel conductors are spaced apart from one another by a substantially constant spacing. Each receiver has an associated gain, and the gains of the receivers are configured to simulate voltages induced in conductor loops of sinusoidally-varying pitch.

    摘要翻译: 公开了一种用于定位包括磁场发生器的物体的位置检测系统。 位置检测系统还包括响应于由磁场发生器产生的磁场的响应于并联导体的多个接收器的平行导体阵列。 平行的导体通过基本上恒定的间隔彼此间隔开。 每个接收机具有相关联的增益,并且接收器的增益被配置为模拟在正弦变化间距的导体环路中感应的电压。

    Position detecting system and method
    4.
    发明授权
    Position detecting system and method 有权
    位置检测系统及方法

    公开(公告)号:US06838872B1

    公开(公告)日:2005-01-04

    申请号:US09838708

    申请日:2001-04-18

    CPC分类号: G01D5/2525

    摘要: A system and method for detecting the position of an object are disclosed. A position detection system for locating an object including a resonator comprises an array of parallel conductors responsive to the magnetic field from the resonator, and a plurality of receivers each associated with a parallel conductor. The array of parallel conductors is configured to locate the object along a measurement path. The array of parallel conductors is orthogonal to the measurement path. The system further comprises a plurality of drivers each associated with a parallel conductor and configured to drive current through to produce an energizing field. The array of parallel conductors is provided with sinusoidally varying spacing and driven with sinusoidally varying current. In another embodiment, the array of parallel conductors is provided with constant spacing, and the receivers are configured with gain factors to produce reception similar to reception by sinusoidally spaced conductors. The array of parallel conductors may be driven with three-phase currents to eliminate stationary null points in the energizing field along the lengths of the parallel conductors. A method of detecting position of an object including a resonator comprises providing an array of parallel conductors, providing a plurality of receivers, and associating each of the receivers with a parallel conductor.

    摘要翻译: 公开了一种用于检测物体的位置的系统和方法。 用于定位包括谐振器的物体的位置检测系统包括响应于来自谐振器的磁场的平行导体阵列,以及每个与并联导体相关联的多个接收器。 平行导体阵列被配置成沿测量路径定位物体。 平行导体阵列与测量路径正交。 该系统还包括多个驱动器,每个驱动器与并行导体相关联,并被配置为驱动电流通过以产生通电场。 平行导体阵列具有正弦变化的间隔,并以正弦变化的电流驱动。 在另一个实施例中,平行导体阵列被提供有恒定的间隔,并且接收器配置有增益因子以产生类似于由正弦间隔的导体接收的接收。 平行导体阵列可以用三相电流驱动,以消除沿着平行导体长度的激励场中的固定零点。 检测包括谐振器的物体的位置的方法包括提供并联导体的阵列,提供多个接收器,以及将每个接收器与平行导体相关联。

    System And Method For Temporal Out-Of-Order Compression And Multi-Source Compression Rate Control
    6.
    发明申请
    System And Method For Temporal Out-Of-Order Compression And Multi-Source Compression Rate Control 审中-公开
    用于时间无序压缩和多源压缩率控制的系统和方法

    公开(公告)号:US20110255609A1

    公开(公告)日:2011-10-20

    申请号:US12493091

    申请日:2009-06-26

    IPC分类号: H04N7/26

    摘要: A system, method, and computer program product are provided for temporal video compression. In use, portions of video are buffered in a first order. Further, the portions of video are at least partially temporally compressed in a second order. Another system, method, and computer program product are further provided for compressing video from a plurality of sources. In use, video is received from a plurality of sources. Such video from the sources is then compressed. Such compression is carried out using a plurality of rate controls. In various embodiments, the video may be received by way of a single video stream, and/or the compression may be carried by way of a single compression module.

    摘要翻译: 提供了一种用于时间视频压缩的系统,方法和计算机程序产品。 在使用中,视频的一部分以第一顺序被缓冲。 此外,视频的部分至少部分地以二次时间压缩。 还提供另一种系统,方法和计算机程序产品,用于压缩来自多个源的视频。 在使用中,从多个源接收视频。 然后来自源的这样的视频被压缩。 这种压缩使用多个速率控制来进行。 在各种实施例中,可以通过单个视频流来接收视频,和/或可以通过单个压缩模块来承载压缩。