USE OF THIRD PARTY ULTRA WIDEBAND DEVICES TO ESTABLISH GEO-POSITIONAL DATA
    13.
    发明公开
    USE OF THIRD PARTY ULTRA WIDEBAND DEVICES TO ESTABLISH GEO-POSITIONAL DATA 审中-公开
    超宽带设备的第三geolocational的生产中使用

    公开(公告)号:EP1350399A1

    公开(公告)日:2003-10-08

    申请号:EP01990210.5

    申请日:2001-12-13

    IPC分类号: H04Q7/20

    摘要: A system, method and article of manufacture are provided for determining a location of a wireless device (402) in a wireless communication system (400). In general, an initial request is transmitted to wireless devices having known locations for position information so that a location can be determined for a first wireless device having an undetermined location (102). Those wireless devices with known locations that receive the initial request in turn transmit positioning information to the first wireless device (102). If position information from less than a sufficient number of wireless devices with known location is received by the first mobile wireless device, an additional request is then transmitted for response from these responding other wireless devices (104). After responses to the request from one or more of these responding other wireless devices are received (106), communication then occurs with at least a portion of the responding wireless devices to obtain information relating to the distance between the first wireless device and the responding wireless devices it is communicating with (108). Next, a location of the first wireless device is estimated using the information obtained from these responding wireless devices and the position information received from the wireless devices with known locations (110).

    ULTRA WIDE BAND TRANSMITTER
    14.
    发明公开
    ULTRA WIDE BAND TRANSMITTER 有权
    超宽频带CHANNEL

    公开(公告)号:EP1295450A2

    公开(公告)日:2003-03-26

    申请号:EP01946645.7

    申请日:2001-06-21

    IPC分类号: H04L27/20 H04L27/34

    摘要: The present invention is a transmitter system comprising a data modulation unit, a transmitter unit and an antenna. The data modulation unit is configured to generate a digital stream of pulse data which is synchronized with a master clock. The data modulation unit is configured to support pulse streams having different modulation techniques. The different modulation techniques include on-off keying and pulse amplitude modulation. The data modulation unit may be configured to include both a pulse amplitude modulation module and a pulse repetition frequency module.

    ULTRA WIDE BAND TRANSMITTER
    15.
    发明授权
    ULTRA WIDE BAND TRANSMITTER 有权
    ULTRABREITBANDSENDER

    公开(公告)号:EP1295450B1

    公开(公告)日:2007-05-02

    申请号:EP01946645.7

    申请日:2001-06-21

    IPC分类号: H04L27/20 H04L27/34

    摘要: The present invention is a transmitter system comprising a data modulation unit, a transmitter unit and an antenna. The data modulation unit is configured to generate a digital stream of pulse data which is synchronized with a master clock. The transmitter unit is coupled to the data modulation unit. The transmitter unit is configured to receive the digital stream of pulse data and generates a RF pulse stream for transmission. The antenna is coupled to the transmitter unit and the antenna is configured to transmit the RF pulse stream. The data modulation unit is configured to support pulse streams having different modulation techniques. The different modulation techniques include on-off keying and pulse amplitude modulation. The data modulation unit includes a pulse amplitude modulation module which is configured to vary the amplitude of a modulated pulse. The data modulation unit may also be configured to include a pulse repetition frequency module which is configured to vary the pulse repetition frequency. Further still, the data modulation unit may be configured to include both a pulse amplitude modulation module and a pulse repetition frequency module.