公开(公告)号：US10120581B2

公开(公告)日：2018-11-06

申请号：US15085399

申请日：2016-03-30

Applicant: QUALCOMM Incorporated

Inventor： Richard Senior ,  Amin Ansari ,  Vito Remo Bica ,  Jinxia Bai

IPC: G06F3/06 ,  H03M7/30

Abstract: Aspects for generating compressed data streams with lookback pre-fetch instructions are disclosed. A data compression system is provided and configured to receive and compress an uncompressed data stream as part of a lookback-based compression scheme. The data compression system determines if a current data block was previously compressed. If so, the data compression system is configured to insert a lookback instruction corresponding to the current data block into the compressed data stream. Each lookback instruction includes a lookback buffer index that points to an entry in a lookback buffer where decompressed data corresponding to the data block will be stored during a separate decompression scheme. Once the data blocks have been compressed, the data compression system is configured to move a lookback buffer index of each lookback instruction in the compressed data stream into a lookback pre-fetch instruction located earlier than the corresponding lookback instruction in the compressed data stream.

公开(公告)号：US09413386B1

公开(公告)日：2016-08-09

申请号：US14626905

申请日：2015-02-19

Applicant: QUALCOMM Incorporated

Inventor： Richard Senior ,  Amin Ansari ,  Jinxia Bai ,  Vito Bica

IPC: H03M7/30

CPC classification number: H03M7/3088 ,  H03M7/30 ,  H03M7/3086 ,  H03M7/6005

Abstract: A system for data decompression may include a processor coupled to a remote memory having a remote dictionary stored thereon and coupled to a decompression logic having a local memory with a local dictionary. The processor may decompress data during execution by accessing the local dictionary, and if necessary, the remote dictionary.

Abstract translation: 用于数据解压缩的系统可以包括耦合到具有存储在其上的远程字典的远程存储器的处理器，并且耦合到具有本地字典的本地存储器的解压缩逻辑。 处理器可以在执行期间通过访问本地字典来解压缩数据，并且如果需要，可以对远程字典进行解压缩。

公开(公告)号：US11763141B2

公开(公告)日：2023-09-19

申请号：US17713176

申请日：2022-04-04

Applicant: Qualcomm Incorporated

Inventor： Jinxia Bai ,  Rosario Cammarota ,  Michael Goldfarb

IPC: G06F13/10 ,  G06N3/063 ,  G06F13/28 ,  G06F15/78

CPC classification number: G06N3/063 ,  G06F13/28 ,  G06F15/7825

Abstract: A neural processing unit (NPU) is described. The NPU includes an NPU direct memory access (NDMA) core. The NDMA core includes a read engine having a read buffer. The NDMA core also includes a write engine having a write buffer. The NPU also includes a controller. The controller is configured to direct the NDMA core to perform hardware memory bandwidth optimization for reading/writing NDMA data in the read buffer and/or NDMA data in the write buffer. The NDMA core is also configured to transparently combine NDMA transaction requests for a data stripe to increase local access to available tensors in artificial neural networks.

公开(公告)号：US20170285939A1

公开(公告)日：2017-10-05

申请号：US15085399

申请日：2016-03-30

Applicant: QUALCOMM Incorporated

Inventor： Richard Senior ,  Amin Ansari ,  Vito Remo Bica ,  Jinxia Bai

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/064 ,  G06F3/0656 ,  G06F3/0673 ,  H03M7/3086 ,  H03M7/6017 ,  H03M7/6029

Abstract: Aspects for generating compressed data streams with lookback pre-fetch instructions are disclosed. A data compression system is provided and configured to receive and compress an uncompressed data stream as part of a lookback-based compression scheme. The data compression system determines if a current data block was previously compressed. If so, the data compression system is configured to insert a lookback instruction corresponding to the current data block into the compressed data stream. Each lookback instruction includes a lookback buffer index that points to an entry in a lookback buffer where decompressed data corresponding to the data block will be stored during a separate decompression scheme. Once the data blocks have been compressed, the data compression system is configured to move a lookback buffer index of each lookback instruction in the compressed data stream into a lookback pre-fetch instruction located earlier than the corresponding lookback instruction in the compressed data stream.

公开(公告)号：US11861484B2

公开(公告)日：2024-01-02

申请号：US16147189

申请日：2018-09-28

Applicant: QUALCOMM Incorporated

Inventor： Jinxia Bai ,  Rosario Cammarota ,  Michael Goldfarb

IPC: G06F15/78 ,  G06N3/063 ,  G06F9/30

CPC classification number: G06N3/063 ,  G06F9/30098 ,  G06F15/7825

Abstract: A neural processing unit (NPU) is described. The NPU includes an NPU direct memory access (NDMA) core. The NDMA core includes a read engine having a read buffer. The NDMA core also includes a write engine having a write buffer. The NPU also includes a controller. The controller is configured to direct the NDMA core to perform hardware pre-processing of NDMA data in the read buffer and post-processing of NDMA data in the write buffer on blocks of a data stripe to process tensors in artificial neural networks.

公开(公告)号：US11295205B2

公开(公告)日：2022-04-05

申请号：US16147245

申请日：2018-09-28

Applicant: QUALCOMM Incorporated

Inventor： Jinxia Bai ,  Rosario Cammarota ,  Michael Goldfarb

IPC: G06F15/76 ,  G06N3/063 ,  G06F13/28 ,  G06F15/78

Abstract: A neural processing unit (NPU) is described. The NPU includes an NPU direct memory access (NDMA) core. The NDMA core includes a read engine having a read buffer. The NDMA core also includes a write engine having a write buffer. The NPU also includes a controller. The controller is configured to direct the NDMA core to perform hardware memory bandwidth optimization for reading/writing NDMA data in the read buffer and/or NDMA data in the write buffer. The NDMA core is also configured to transparently combine NDMA transaction requests for a data stripe to increase local access to available tensors in artificial neural networks.

公开(公告)号：US09998143B2

公开(公告)日：2018-06-12

申请号：US15230325

申请日：2016-08-05

Applicant: QUALCOMM Incorporated

Inventor： Richard Senior ,  Amin Ansari ,  Jinxia Bai ,  Vito Bica

IPC: H03M7/30

CPC classification number: H03M7/3088 ,  H03M7/30 ,  H03M7/3086 ,  H03M7/6005

Abstract: A system for data decompression may include a processor coupled to a remote memory having a remote dictionary stored thereon and coupled to a decompression logic having a local memory with a local dictionary. The processor may decompress data during execution by accessing the local dictionary, and if necessary, the remote dictionary.