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    APPARATUS AND METHOD FOR ENCODING AND COMPUTING A DISCRETE COSINE TRANSFORM USING A BUTTERFLY PROCESSOR
    21.
    发明专利
    APPARATUS AND METHOD FOR ENCODING AND COMPUTING A DISCRETE COSINE TRANSFORM USING A BUTTERFLY PROCESSOR 未知

    公开(公告)号：CA2446874A1

    公开(公告)日：2002-11-21

    申请号：CA2446874

    申请日：2002-05-15

    Applicant: QUALCOMM INC

    Inventor： LAROCCA JUDITH ,  LEVIN JEFFREY A ,  IRVINE CHRIS A

    IPC: G06F17/14 ,  G06F7/00 ,  G06T9/00 ,  H03M7/30 ,  H04N1/32 ,  H04N1/41 ,  H04N7/12 ,  H04N7/30 ,  H04N7/50

    Abstract: An apparatus to determine a transform of a block of encoded data the block o f encoded data comprising a plurality of data elements. An input register is configured to receive a predetermined quantity of data elements. At least on e butterfly processor is coupled to the input register and is configured to perform at least one mathematical operation on selected pairs of data elemen ts to produce an output of processed data elements. At least one intermediate register is coupled to the butterfly processor and configured to temporarily store the processed data. A feedback loop is coupled to the intermediate register and the butterfly processor, and where if enabled, is configured to transfer a first portion of processed data elements to the appropriate butterfly processor to perform additional mathematical operations and where if disabled, is configured to transfer a second portion of processed data elements to at least one holding register.

    Selección de parámetros en la compresión y descompresión de datos
    22.
    发明专利
    Selección de parámetros en la compresión y descompresión de datos 未知

    公开(公告)号：ES2598403T3

    公开(公告)日：2017-01-27

    申请号：ES03796288

    申请日：2003-07-30

    Applicant: QUALCOMM INC

    Inventor： GOVINDASWAMY SENTHIL ,  LEVIN JEFFREY A ,  LAROCCA JUDITH

    IPC: G06T9/00 ,  H04N19/124

    Abstract: Un procedimiento, que comprende: descodificar con longitud variable información comprimida (DC, PQR, AC) para generar un bloque de datos descodificados de longitud variable; determinar una dirección de datos dentro del bloque de datos descodificados de longitud variable, en el que la determinación de la dirección de los datos comprende la determinación de los índices Y y X para una posición de coeficiente de transformación cuantizado dentro del bloque de datos descodificados de longitud variable, en base a un sistema de índices Y y X, en el que los índices Y y X determinan una ubicación del dominio de la frecuencia en la que se encuentra el coeficiente de transformación cuantizado; determinar (1410) un valor variable en base a una información de asignación de tamaño de bloque (PQR) y a los índices Y y X; seleccionar (1450) un parámetro de cuantización (paso Q, FWM) en base al valor variable determinado; y cuantizar de forma inversa los datos dentro del bloque de datos descodificados de longitud variable, utilizando el parámetro de cuantización seleccionado.

    Parameter selection in data compression and decompression
    24.
    发明专利
    Parameter selection in data compression and decompression 未知

    公开(公告)号：AU2003298536B2

    公开(公告)日：2009-12-10

    申请号：AU2003298536

    申请日：2003-07-30

    Applicant: QUALCOMM INC

    Inventor： GOVINDASWAMY SENTHIL ,  LEVIN JEFFREY A ,  LAROCCA JUDITH

    IPC: G06T9/00 ,  H04N19/124

    Abstract: Apparatus, systems and methods for using the selection of an appropriate parameter at decompression are disclosed. In particular, when adaptive block size discrete cosine transform compression is used to compress data, different combinations of sub-blocks can be generated. To decompress the different combinations of sub-blocks, the appropriate parameter is selected based on block size assignment information and the address of data in the data block.

    METHOD AND APPARATUS FOR PROVIDING VARIABLE RATE DATA IN A COMMUNICATIONS SYSTEM USING NON-ORTHOGONAL OVERFLOW CHANNELS
    25.
    发明专利
    METHOD AND APPARATUS FOR PROVIDING VARIABLE RATE DATA IN A COMMUNICATIONS SYSTEM USING NON-ORTHOGONAL OVERFLOW CHANNELS 未知

    公开(公告)号：CA2213998C

    公开(公告)日：2009-05-12

    申请号：CA2213998

    申请日：1996-02-28

    Applicant: QUALCOMM INC

    Inventor： MILLER DAVID S ,  LAROCCA JUDITH ,  ZEHAVI EPHRAIM

    IPC: H04B7/216 ,  H04J3/16 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04L1/00 ,  H04L7/02 ,  H04L9/22

    Abstract: The present invention discloses a variable rate transmission system wherein a packet of variable rate data is modulated in accordance with a traffic channel sequence supplied by a traffic PN generator (63) if t he capacity of said traffic channel is greater than or equal to said data rate of the packet. If the capacity of said traffic channel is less tha n said data rate, the packet of variable rate data is modulated in accordance with the traffic channel sequence supplied by the traffic PN generator (63) and in accordance with at least one overflow channel sequence supplied by an overflow channel generator (65). The present inventi on further discloses a receiving system for receiving variable rate data where a received packet of variable rate data is demodulated in accordance with a traffic channel sequence supplied by a traffic PN generator (104) if the capacity of said traffic channel is greater than o r equal to a data rate of said packet. If the capacity of said traffic channel is less than said data rate of the packet of variable rate data, the received packet is demodulated in accordance with a traffic channel sequence supplied by a traffic PN generator (104) and in accordance with at least one overflow channel sequence supplied by an overflow channel generator (120).

    Apparatus and method for decoding and computing an inverse discrete cosine transform using a butterfly processor
    27.
    发明专利
    Apparatus and method for decoding and computing an inverse discrete cosine transform using a butterfly processor 未知

    公开(公告)号：AU2002303813A1

    公开(公告)日：2002-11-25

    申请号：AU2002303813

    申请日：2002-05-15

    Applicant: QUALCOMM INC

    Inventor： IRVINE A CHRIS ,  LAROCCA JUDITH ,  LEVIN A JEFFREY

    IPC: G06F15/00 ,  H03M20060101 ,  H04N1/32 ,  H04N1/41 ,  H04N7/12

    Abstract: An apparatus to determine the inverse transform of a block of encoded data the block of encoded data comprising a plurality of compressed frequency domain data elements. An input register is configured to receive a predetermined quantity of data elements. At least one butterfly processor is coupled to the input register and is configured to perform at least one mathematical operation on selected pairs of data elements to produce an output of processed data elements. At least one intermediate register is coupled to the butterfly processor and configured to temporarily store the processed data. A feedback loop is coupled to the intermediate register and the butterfly processor, and where if enabled, is configured to transfer a first portion of processed data elements to the appropriate butterfly processor to perform additional mathematical operations and where if disabled, is configured to transfer a second portion of processed data elements to at least one holding register.

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