知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

58 records (took 0.017 seconds)

    Conditional embedding of dynamically shielded information on a bus
    51.
    发明授权
    Conditional embedding of dynamically shielded information on a bus 有权

    公开(公告)号：US10157161B2

    公开(公告)日：2018-12-18

    申请号：US14885942

    申请日：2015-10-16

    Applicant: QUALCOMM Incorporated

    Inventor： Urs Niesen ,  Shrinivas Kudekar

    IPC: G06F13/42 ,  G06F1/10 ,  H04B3/32 ,  H04L12/40

    Abstract: System, methods, and apparatus are described for transmitting encoded bits over a bus by conditionally embedding dynamically shielded information. In an example, the apparatus transmits a first group of encoded bits over a bus, generates a second group of encoded bits to be transmitted over the bus, where a first subset of the second group of encoded bits are encoded to avoid crosstalk-inducing bit transitions on adjacent lines of the bus, and configures one or more encoded bits of a second subset of the second group of encoded bits to ensure that the second group of encoded bits includes parity information and/or clock information, while further ensuring that crosstalk-inducing bit transitions in the second group of encoded bits are avoided.

    MULTIPLE LOW DENSITY PARITY CHECK (LDPC) BASE GRAPH DESIGN
    52.
    发明申请
    MULTIPLE LOW DENSITY PARITY CHECK (LDPC) BASE GRAPH DESIGN 审中-公开

    公开(公告)号：US20180226989A1

    公开(公告)日：2018-08-09

    申请号：US15943624

    申请日：2018-04-02

    Applicant: QUALCOMM Incorporated

    Inventor： Joseph Binamira Soriaga ,  Gabi Sarkis ,  Shrinivas Kudekar ,  Thomas Richardson ,  Vincent Loncke

    IPC: H03M13/11 ,  H03M13/00

    Abstract: Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing LDPC base graphs. Two or more LDPC base graphs may be maintained that are associated with different ranges of overlapping information block lengths. A particular LDPC base graph may be selected for an information block based on the information block length of the information block. Additional metrics that may be considered when selecting the LDPC base graph may include the code rate utilized to encode the information block and/or the lift size applied to each LDPC base graph to produce the information block length of the information block.

    DESIGN OF ROBUST AND UNIVERSAL POLAR CODES
    53.
    发明申请
    DESIGN OF ROBUST AND UNIVERSAL POLAR CODES 审中-公开

    公开(公告)号：US20180205496A1

    公开(公告)日：2018-07-19

    申请号：US15870197

    申请日：2018-01-12

    Applicant: QUALCOMM Incorporated

    Inventor： Shrinivas Kudekar ,  Gabi Sarkis ,  Thomas Richardson

    IPC: H04L1/00

    Abstract: Aspects of the disclosure relate to polar coding. A polar codeword may be generated by sorting a plurality of synthetic channels utilized for transmission of the polar codeword over an air interface in order of reliability utilizing a convex combination of the mutual information calculated for each synthetic channel based on an Additive White Gaussian Noise (AWGN) channel and the mutual information calculated for each synthetic channel based on a binary erasure channel. A polar codeword may further be generated by sorting the plurality of synthetic channels in order of reliability utilizing cumulative sums calculated for each synthetic channel. Each cumulative sum may be calculated from a binary representation of a position of the synthetic channel within the plurality of synthetic channels.

    JOINT CROSSTALK-AVOIDANCE AND ERROR-CORRECTION CODING FOR PARALLEL DATA BUSSES
    56.
    发明申请
    JOINT CROSSTALK-AVOIDANCE AND ERROR-CORRECTION CODING FOR PARALLEL DATA BUSSES 有权

    公开(公告)号：US20170163375A1

    公开(公告)日：2017-06-08

    申请号：US14958883

    申请日：2015-12-03

    Applicant: QUALCOMM Incorporated

    Inventor： Urs Niesen ,  Shrinivas Kudekar

    IPC: H04L1/00 ,  G06F13/42 ,  H04L1/08

    CPC classification number: H04L1/0041 ,  G06F13/4208 ,  H04B3/32 ,  H04L1/0042 ,  H04L1/08 ,  H04L25/14

    Abstract: System, methods, and apparatus are described that facilitate transmission/reception of data over a multi-line parallel bus. In an example, the apparatus transmits data bits over a parallel bus includes determining from a prior bus state, a plurality of free wires in the bus for a current bus state, where each free wire satisfies a crosstalk-avoidance constraint in the current bus state for all values of a bit transmitted on the free wire. The apparatus may encode a plurality of data bits using a crosstalk avoidance encoder to obtain a CAC-encoded word, compute an error detection or correction code for the CAC-encoded word, assign bits of the error detection or correction code to the plurality of free wires for transmission during the current bus state, and assign the CAC-encoded word to unassigned wires of the bus for transmission during the current bus state.

    Joint crosstalk-avoidance and error-correction coding for parallel data busses
    57.
    发明授权
    Joint crosstalk-avoidance and error-correction coding for parallel data busses 有权

    公开(公告)号：US09654251B1

    公开(公告)日：2017-05-16

    申请号：US14958883

    申请日：2015-12-03

    Applicant: QUALCOMM Incorporated

    Inventor： Urs Niesen ,  Shrinivas Kudekar

    IPC: H03M13/00 ,  H04L1/18 ,  H04L1/00 ,  H04L1/08 ,  G06F13/42

    CPC classification number: H04L1/0041 ,  G06F13/4208 ,  H04B3/32 ,  H04L1/0042 ,  H04L1/08 ,  H04L25/14

    Abstract: System, methods, and apparatus are described that facilitate transmission/reception of data over a multi-line parallel bus. In an example, the apparatus transmits data bits over a parallel bus includes determining from a prior bus state, a plurality of free wires in the bus for a current bus state, where each free wire satisfies a crosstalk-avoidance constraint in the current bus state for all values of a bit transmitted on the free wire. The apparatus may encode a plurality of data bits using a crosstalk avoidance encoder to obtain a CAC-encoded word, compute an error detection or correction code for the CAC-encoded word, assign bits of the error detection or correction code to the plurality of free wires for transmission during the current bus state, and assign the CAC-encoded word to unassigned wires of the bus for transmission during the current bus state.

Patent Agency Ranking