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    Indoor GPS-type receiver
    4.
    发明专利
    Indoor GPS-type receiver 未知

    公开(公告)号：GB2426399A

    公开(公告)日：2006-11-22

    申请号：GB0510050

    申请日：2005-05-18

    Applicant: MOTOROLA INC

    Inventor： SHEMESH YARON ,  BERCOVICI MIHAEIL S ,  SWOPE CHARLES B

    IPC: G01S5/14 ,  G01S19/10 ,  G01S19/21 ,  G01S19/46 ,  G01S19/48

    Abstract: A radio beacon (105(5)) for use in location determination inside a building (103), mine or other enclosure transmits a RF signal equivalent to a partially coded GPS (Global Positioning System) signal which includes an identity code identifying the beacon but null data in the ephemeris and/or almanac data field. The signal is received by a commercially available GPS receiver. The GPS receiver selects the best signal and recognises a beacon identity code and detects that the signal is from a radio beacon rather than a GPS satellite. It then determines the location of the mobile station as being approximately the known location of the identified beacon.

    Radio beacon, mobile station, processor, system and method for determining location
    7.
    发明专利
    Radio beacon, mobile station, processor, system and method for determining location 未知

    公开(公告)号：GB2426399B

    公开(公告)日：2007-08-01

    申请号：GB0510050

    申请日：2005-05-18

    Applicant: MOTOROLA INC

    Inventor： SHEMESH YARON ,  BERCOVICI MIHAEIL S ,  SWOPE CHARLES B

    IPC: G01S19/10 ,  G01S5/14 ,  G01S19/21 ,  G01S19/46 ,  G01S19/48

    Abstract: A radio beacon ( 105 ( 5 )) is for use in location determination inside a building ( 103 ) or other enclosure. The beacon transmits a RF signal equivalent to a partially coded GPS (Global Positioning System) signal which includes an identity code identifying the beacon but null data in at least one GPS data field. A mobile station ( 101 ) includes a GPS receiver ( 208 ) for receiving GPS signals and a processor ( 202 ) for processing data extracted from signals received by the GPS receiver. The GPS receiver is operable to receive a signal from a transmitting beacon ( 105 ( 5 )). The processor is operable to recognise a beacon identity code from the data extracted from the received signal and thereby detect that the signal is from a radio beacon rather than a GPS satellite and thereby to apply a further procedure to calculate the location of the mobile station based upon a known location of the identified beacon.

    Locating a subscriber unit within a cellular communications system
    9.
    发明专利
    Locating a subscriber unit within a cellular communications system 未知

    公开(公告)号：GB2409376A

    公开(公告)日：2005-06-22

    申请号：GB0329177

    申请日：2003-12-17

    Applicant: MOTOROLA INC

    Inventor： SHEMESH YARON ,  BERCOVICI MICHAEL ,  EDRY ISSAC ,  KAHLON HAIM

    IPC: G01S5/14 ,  G01S19/24 ,  G01S19/34 ,  G01S19/48 ,  H04Q7/38

    Abstract: A subscriber unit, e.g. for GSM, has an associated adjunct location determining receiver e.g. GPS. On receipt of a user or terminal initiated location request 207, the GPS receiver determines location 209, using satellite transmissions including further data such as ephemeris correction data valid for a short time period e.g. 3-4 hours. If no location request is ongoing, the GPS receiver is powered down 211, thereby reducing battery consumption. Subsequently, a location estimate is derived from the GSM network, e.g. by triangulation at the terminal or by the network base stations, or by cell ID. If the terminal is now separated from the ephemeris data reference point by greater than a threshold 217. the GPS receiver is powered up 219 and location determined. In any case if a predetermined time, e.g. 2 hours has elapsed 221 the GPS receiver is powered up. In alternatives, the GPS location may be performed by the network, rather than in the handset. This arrangement can also improve accuracy and shorten time to first position fix, as well as saving power.

    INTERLEAVER FOR USE IN TURBO CODING
    10.
    发明申请
    INTERLEAVER FOR USE IN TURBO CODING 审中-公开
    用于涡轮编码的交互

    公开(公告)号：WO2008060843A2

    公开(公告)日：2008-05-22

    申请号：PCT/US2007082804

    申请日：2007-10-29

    Applicant: MOTOROLA INC ,  SIDON JEAN ,  BERCOVICI MIHAEL S ,  SHEMESH YARON

    Inventor： SIDON JEAN ,  BERCOVICI MIHAEL S ,  SHEMESH YARON

    IPC: G06F7/483

    CPC classification number: H03M13/2771 ,  H03M13/2739 ,  H03M13/275 ,  H03M13/2957 ,  H03M13/6561

    Abstract: An interleaver (100) is for re-arranging in each of L cycles a first set of K data elements into a second set of K data elements using a permutation vector which defines, based on the calculation in each cycle of a sequence c m , an even number of pairs of positions of elements in the first set to be swapped, wherein c m satisfies a quadratic congruence condition. A processor (103) computes for each of the L cycles a value of the sequence c m and, based on the value, a set of indexes indicating at least two pairs of elements to be swapped, and a processor (101) swaps in each cycle pairs of indicated elements, the swapping of pairs in each cycle being done together in a parallel swapping operation.

    Abstract translation: 交织器（100）用于使用置换向量将L个数据元素的第一组K个数据元素重新排列成第二组K个数据元素，所述置换向量基于序列的每个周期中的计算c m ，要交换的第一组中的元素位置的偶数对，其中c m满足二次全等式条件。 处理器（103）针对L个周期中的每一个计算序列c m的值，并且基于该值，指示指示要交换的至少两对元素对的一组索引，以及 处理器（101）在每个周期中互换所指示的元素对，每个周期中的对的交换在并行交换操作中一起完成。

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