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公开(公告)号：US10985778B2
公开(公告)日：2021-04-20
申请号：US16741974
申请日：2020-01-14
发明人： Timothy Siegel , Mark Farrell , Bruce Giamei , Matthias Klein , Ashutosh Misra , Simon Weishaupt , Girish Gopala Kurup
IPC分类号： H03M7/34 , H03M13/01 , G06F9/50 , H03M13/00 , H03M7/40 , G06F7/58 , G06F9/30 , G06F9/38 , H03M7/30
摘要： Embodiments of the invention are directed to a DEFLATE compression accelerator and to a method for verifying the correctness of the DEFLATE compression accelerator. The accelerator includes an input buffer and a Lempel-Ziv 77 (LZ77) compressor communicatively coupled to an output of the input buffer. A switch is communicatively coupled to the output of the input buffer and to the output of the LZ77 compressor. The switch is configured to bypass the LZ77 compressor during a compression test. The accelerator further includes a deflate Huffman encoder communicatively coupled to an output of the switch and an output buffer communicatively coupled to the deflate Huffman encoder. When the switch is not bypassed, the compressor can be modified to produce repeatable results.
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公开(公告)号：US11061685B2
公开(公告)日：2021-07-13
申请号：US16286985
申请日：2019-02-27
发明人： Louis P. Gomes , Bruce Giamei , Timothy Slegel , Mark Farrell , Matthias Klein
摘要： A method is provided that is executable by a processor of a computer. Note that the processor is communicatively coupled to a memory of the computer, and the memory stores a response block of a call command. In implementing the method, the processor defines a sub-functions field in the response block of the call command. Further the processor indicates that a set of functions of a set of instructions are installed and available at an interface based on a corresponding sub-functions flag within the sub-functions field being set. Note that the interface is also being executed on the computer and that the set of functions being represented by the corresponding sub-functions flag. The processor further indicates that the set of functions of the set of instructions are not installed based on the corresponding sub-functions flag not being set.
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公开(公告)号：US20200295780A1
公开(公告)日：2020-09-17
申请号：US16353527
申请日：2019-03-14
发明人： Timothy Slegel , Mark Farrell , Bruce Giamei , Matthias Klein , Ashutosh Misra , Simon Weishaupt , Girish Gopala Kurup
摘要： Embodiments of the invention are directed to a DEFLATE compression accelerator and to a method for verifying the correctness of the DEFLATE compression accelerator. The accelerator includes an input buffer and a Lempel-Ziv 77 (LZ77) compressor communicatively coupled to an output of the input buffer. A switch is communicatively coupled to the output of the input buffer and to the output of the LZ77 compressor. The switch is configured to bypass the LZ77 compressor during a compression test. The accelerator further includes a deflate Huffman encoder communicatively coupled to an output of the switch and an output buffer communicatively coupled to the deflate Huffman encoder. When the switch is not bypassed, the compressor can be modified to produce repeatable results.
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公开(公告)号：US20200293377A1
公开(公告)日：2020-09-17
申请号：US16741974
申请日：2020-01-14
发明人： Timothy Slegel , Mark Farrell , Bruce Giamei , Matthias Klein , Ashutosh Misra , Simon Weishaupt , Girish Gopala Kurup
摘要： Embodiments of the invention are directed to a DEFLATE compression accelerator and to a method for verifying the correctness of the DEFLATE compression accelerator. The accelerator includes an input buffer and a Lempel-Ziv 77 (LZ77) compressor communicatively coupled to an output of the input buffer. A switch is communicatively coupled to the output of the input buffer and to the output of the LZ77 compressor. The switch is configured to bypass the LZ77 compressor during a compression test. The accelerator further includes a deflate Huffman encoder communicatively coupled to an output of the switch and an output buffer communicatively coupled to the deflate Huffman encoder. When the switch is not bypassed, the compressor can be modified to produce repeatable results.
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公开(公告)号：US20210224073A1
公开(公告)日：2021-07-22
申请号：US17224198
申请日：2021-04-07
发明人： Louis P. Gomes , Bruce Giamei , Timothy Slegel , Mark Farrell , Matthias Klein
摘要： A method is provided that is executable by a processor of a computer. Note that the processor is communicatively coupled to a memory of the computer, and the memory stores a response block of a call command. In implementing the method, the processor defines a sub-functions field in the response block of the call command. Further the processor indicates that a set of functions of a set of instructions are installed and available at an interface based on a corresponding sub-functions flag within the sub-functions field being set. Note that the interface is also being executed on the computer and that the set of functions being represented by the corresponding sub-functions flag. The processor further indicates that the set of functions of the set of instructions are not installed based on the corresponding sub-functions flag not being set.
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公开(公告)号：US20200272476A1
公开(公告)日：2020-08-27
申请号：US16286985
申请日：2019-02-27
发明人： Louis P. Gomes , Bruce Giamei , Timothy Slegel , Mark Farrell , Matthias Klein
摘要： A method is provided that is executable by a processor of a computer. Note that the processor is communicatively coupled to a memory of the computer, and the memory stores a response block of a call command. In implementing the method, the processor defines a sub-functions field in the response block of the call command. Further the processor indicates that a set of functions of a set of instructions are installed and available at an interface based on a corresponding sub-functions flag within the sub-functions field being set. Note that the interface is also being executed on the computer and that the set of functions being represented by the corresponding sub-functions flag. The processor further indicates that the set of functions of the set of instructions are not installed based on the corresponding sub-functions flag not being set.
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公开(公告)号：US10601441B2
公开(公告)日：2020-03-24
申请号：US16358764
申请日：2019-03-20
摘要： Systems, methods, and computer-readable media are described for performing data compression in a manner that does not require software to make a call to hardware to close a compressed data block, thereby reducing computational overhead. In response to a request from software to data compression hardware for a data encoding, the hardware may return the data encoding as well as an end-of-block symbol encoding value and bit length. The hardware may load the end-of-block symbol encoding value and bit length into a different area in the returned structure such that the software has direct access to the value. When the software determines that a block should be closed, the software may retrieve the end-of-block symbol and insert it into the block without needing to make a call to hardware. The software may then make a call to the hardware to request a new data encoding for subsequent compressed data blocks.
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公开(公告)号：US11487547B2
公开(公告)日：2022-11-01
申请号：US17224198
申请日：2021-04-07
发明人： Louis P. Gomes , Bruce Giamei , Timothy Siegel , Mark Farrell , Matthias Klein
摘要： A method is provided that is executable by a processor of a computer. Note that the processor is communicatively coupled to a memory of the computer, and the memory stores a response block of a call command. In implementing the method, the processor defines a sub-functions field in the response block of the call command. Further the processor indicates that a set of functions of a set of instructions are installed and available at an interface based on a corresponding sub-functions flag within the sub-functions field being set. Note that the interface is also being executed on the computer and that the set of functions being represented by the corresponding sub-functions flag. The processor further indicates that the set of functions of the set of instructions are not installed based on the corresponding sub-functions flag not being set.
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公开(公告)号：US11031951B2
公开(公告)日：2021-06-08
申请号：US16741977
申请日：2020-01-14
发明人： Timothy Slegel , Mark Farrell , Bruce Giamei , Matthias Klein , Ashutosh Misra , Simon Weishaupt , Girish Gopala Kurup
IPC分类号： H03M7/34 , H03M13/01 , G06F9/50 , H03M13/00 , H03M7/40 , G06F7/58 , G06F9/30 , G06F9/38 , H03M7/30
摘要： Embodiments of the invention are directed to a DEFLATE compression accelerator and to a method for verifying the correctness of the DEFLATE compression accelerator. The accelerator includes an input buffer and a Lempel-Ziv 77 (LZ77) compressor communicatively coupled to an output of the input buffer. A switch is communicatively coupled to the output of the input buffer and to the output of the LZ77 compressor. The switch is configured to bypass the LZ77 compressor during a compression test. The accelerator further includes a deflate Huffman encoder communicatively coupled to an output of the switch and an output buffer communicatively coupled to the deflate Huffman encoder. When the switch is not bypassed, the compressor can be modified to produce repeatable results.
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公开(公告)号：US10944423B2
公开(公告)日：2021-03-09
申请号：US16353527
申请日：2019-03-14
发明人： Timothy Siegel , Mark Farrell , Bruce Giamei , Matthias Klein , Ashutosh Misra , Simon Weishaupt , Girish Gopala Kurup
IPC分类号： H03M7/34 , H03M13/01 , G06F9/50 , H03M13/00 , H03M7/40 , G06F7/58 , G06F9/30 , G06F9/38 , H03M7/30
摘要： Embodiments of the invention are directed to a DEFLATE compression accelerator and to a method for verifying the correctness of the DEFLATE compression accelerator. The accelerator includes an input buffer and a Lempel-Ziv 77 (LZ77) compressor communicatively coupled to an output of the input buffer. A switch is communicatively coupled to the output of the input buffer and to the output of the LZ77 compressor. The switch is configured to bypass the LZ77 compressor during a compression test. The accelerator further includes a deflate Huffman encoder communicatively coupled to an output of the switch and an output buffer communicatively coupled to the deflate Huffman encoder. When the switch is not bypassed, the compressor can be modified to produce repeatable results.
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