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    Procedimiento y aparato para determinar la localización de un dispositivo móvil en una red inalámbrica
    2.
    发明专利
    Procedimiento y aparato para determinar la localización de un dispositivo móvil en una red inalámbrica 未知

    公开(公告)号：ES2758989T3

    公开(公告)日：2020-05-07

    申请号：ES13179225

    申请日：2007-01-04

    Applicant: QUALCOMM INC

    Inventor： MUKKAVILLI KRISHNA KIRAN ,  LING FUYUN ,  WALKER GORDON KENT ,  CHARI MURALI RAMASWAMY

    IPC: G01S19/06 ,  H04W64/00 ,  G01S5/02 ,  G01S19/25 ,  H04L5/00

    Abstract: Un procedimiento (800) para determinar la posición de un dispositivo en una red, comprendiendo el procedimiento: descodificar (806) un símbolo que comprende subportadoras para determinar la información de identificación que identifica a un transmisor activo, comprendiendo la descodificación la división de las subportadoras del símbolo, que comprende un canal piloto de posicionamiento, PPC, teniendo el símbolo una parte activa y una inactiva, en el que la parte activa comprende la información de identificación del transmisor activo, y la parte inactiva comprende transmisiones de transmisores que no están en un estado activo para proporcionar estabilidad de potencia para mantener el rendimiento de la red; determinar (810) una estimación de canal asociada con el transmisor activo; repetir (814) la descodificación y la determinación para una pluralidad de símbolos de modo que se determinen una pluralidad de transmisores activos asociados con una pluralidad de estimaciones de canal, respectivamente; y calcular (816) la posición del dispositivo basada al menos en parte en la pluralidad de transmisores activos y la pluralidad de estimaciones de canal.

    3.
    发明专利
    未知

    公开(公告)号：BRPI0606719A2

    公开(公告)日：2009-07-21

    申请号：BRPI0606719

    申请日：2006-01-11

    Applicant: QUALCOMM INC

    Inventor： KRISHNAMURTHI RAJEEV ,  CHARI MURALI RAMASWAMY ,  GAUTAM SHUSHEEL ,  VIJAYAN RAJIV ,  CHUNG SEONG TAEK ,  COLLINS BRUCE

    IPC: H04L27/34

    Abstract: A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map the encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the stuffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.

    RE-ACQUIRING SIGNALS OF A WIRELESS BROADCAST NETWORK
    4.
    发明专利
    RE-ACQUIRING SIGNALS OF A WIRELESS BROADCAST NETWORK 未知

    公开(公告)号：CA2604000A1

    公开(公告)日：2006-10-19

    申请号：CA2604000

    申请日：2006-04-07

    Applicant: QUALCOMM INC

    Inventor： MANTRAVADI ASHOK ,  RADHAKRISHNAN DHINAKAR ,  CHARI MURALI RAMASWAMY

    IPC: H04L12/18 ,  H04W4/06

    Abstract: The disclosure is directed to a mobile communication device that determines when a performance disruption indicates a loss of synchronization with a broadcast signal and, in response, initiates reacquisition of the signal. Reacquisition techniques may include identifying and decoding only select portions of header information in the broadcast signal. Reacquisition may al so be initiated in response to one or more deterministic triggers and during a test mode of operation.

    METHODS AND APPARATUS FOR TRANSMITTING LAYERED AND NON-LAYERED DATA VIA LAYERED MODULATION
    5.
    发明专利
    METHODS AND APPARATUS FOR TRANSMITTING LAYERED AND NON-LAYERED DATA VIA LAYERED MODULATION 未知

    公开(公告)号：CA2593783A1

    公开(公告)日：2006-07-20

    申请号：CA2593783

    申请日：2006-01-11

    Applicant: QUALCOMM INC

    Inventor： KRISHNAMURTHI RAJEEV ,  COLLINS BRUCE ,  GAUTAM SHUSHEEL ,  CHARI MURALI RAMASWAMY ,  VIJAYAN RAJIV ,  CHUNG SEONG TAEK

    IPC: H04L27/34

    Abstract: A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map the encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the stuffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.

    7.
    发明专利
    未知

    公开(公告)号：AT466459T

    公开(公告)日：2010-05-15

    申请号：AT06740615

    申请日：2006-04-07

    Applicant: QUALCOMM INC

    Inventor： MANTRAVADI ASHOK ,  RADHAKRISHNAN DHINAKAR ,  CHARI MURALI RAMASWAMY

    IPC: H04W4/06 ,  H04L12/18

    Abstract: The disclosure is directed to a mobile communication device that determines when a performance disruption indicates a loss of synchronization with a broadcast signal and, in response, initiates reacquisition of the signal. Reacquisition techniques may include identifying and decoding only select portions of header information in the broadcast signal. Reacquisition may also be initiated in response to one or more deterministic triggers and during a test mode of operation.

    MULTIPLEXING AND TRANSMISSION OF MULTIPLE DATA STREAMS IN A WIRELESS MULTI-CARRIER COMMUNICATION SYSTEM
    9.
    发明专利
    MULTIPLEXING AND TRANSMISSION OF MULTIPLE DATA STREAMS IN A WIRELESS MULTI-CARRIER COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2703968A1

    公开(公告)日：2009-02-05

    申请号：CA2703968

    申请日：2008-07-26

    Applicant: QUALCOMM INC

    Inventor： LING FUYUN ,  CHARI MURALI RAMASWAMY ,  MANTRAVADI ASHOK ,  KRISHNAMOORTHI RAGHURAMAN

    IPC: H04L5/00

    Abstract: Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in 'super-frames'. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.

    OBJECT RECOGNITION USING INCREMENTAL FEATURE EXTRACTION
    10.
    发明专利
    OBJECT RECOGNITION USING INCREMENTAL FEATURE EXTRACTION 未知

    公开(公告)号：IN117CHN2013A

    公开(公告)日：2015-10-02

    申请号：IN117CHN2013

    申请日：2013-01-04

    Applicant: QUALCOMM INC

    Inventor： BAHETI PAWAN KUMAR ,  VADDADI SUNDEEP ,  SWAMINATHAN ASHWIN ,  REZNIK YURIY ,  HAMSICI ONUR C ,  CHARI MURALI RAMASWAMY ,  HONG JOHN H ,  LEE CHONG UK

    IPC: G06K9/46 ,  G06K9/68

    Abstract: In one example an apparatus includes a processor configured to extract a first set of one or more keypoints from a first set of blurred images of a first octave of a received image calculate a first set of one or more descriptors for the first set of keypoints receive a confidence value for a result produced by querying a feature descriptor database with the first set of descriptors wherein the result comprises information describing an identity of an object in the received image and extract a second set of one or more keypoints from a second set of blurred images of a second octave of the received image when the confidence value does not exceed a confidence threshold. In this manner the processor may perform incremental feature descriptor extraction which may improve computational efficiency of object recognition in digital images.

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