公开(公告)号：US20170127071A1

公开(公告)日：2017-05-04

申请号：US14925761

申请日：2015-10-28

Applicant: QUALCOMM Incorporated

Inventor： Pavel SINHA ,  Mark TODOROVICH

IPC: H04N19/436 ,  H04N19/139 ,  H04N19/13 ,  H04N19/177 ,  H04N19/43 ,  H04N19/44

CPC classification number: H04N19/436 ,  H04N19/13 ,  H04N19/139 ,  H04N19/177 ,  H04N19/43 ,  H04N19/44 ,  H04N19/91

Abstract: Systems and methods for decoding compressed data are described herein. A memory may receive a data stream comprising a string of encoded symbols encoded using an arithmetic coding based coding technique. The string of encoded symbols represents a series of one or more decoded symbols. Each of the one or more decoded symbols comprises one of a most probable symbol and a least probable symbol. A processor may determine a number of consecutive most probable symbols in the series of one or more decoded symbols by performing a plurality of parallel mathematical comparisons based on one or more of the encoded symbols. The processor may further decode a group of symbols of the series of one or more decoded symbols based on the plurality of parallel mathematical comparisons. The group of symbols comprises the number of consecutive most probable symbols.

公开(公告)号：US20200303325A1

公开(公告)日：2020-09-24

申请号：US16359319

申请日：2019-03-20

Applicant: QUALCOMM Incorporated

Inventor： Alan LEWIS ,  Zhengming FU ,  Nan CHEN ,  Adam POLAK ,  Laura FUENTES ,  Gregory BULLARD ,  Mark TODOROVICH

IPC: H01L23/00 ,  G06F21/75 ,  H01L27/144

Abstract: Various embodiments include integrated approaches to detecting attempts to breach system-level or chip-level security using photo-generated currents induced by lasers or other radiation sources. Various embodiments integrate photo-detection circuits with a secure processor or other circuit in such a manner that the response to a security attack is fast enough to prevent loss of secure or private information are described. Various embodiments include circuits capable of providing a permanent record of photocurrent detection.

公开(公告)号：US20230352426A1

公开(公告)日：2023-11-02

申请号：US18338928

申请日：2023-06-21

Applicant: QUALCOMM Incorporated

Inventor： Alan LEWIS ,  Zhengming FU ,  Nan CHEN ,  Adam Cezary POLAK ,  Laura FUENTES ,  Gregory BULLARD ,  Mark TODOROVICH

IPC: H01L23/00 ,  H01L27/144 ,  G06F21/75

CPC classification number: H01L23/576 ,  H01L27/1443 ,  G06F21/755

Abstract: Various embodiments include integrated approaches to detecting attempts to breach system-level or chip-level security using photo-generated currents induced by lasers or other radiation sources. Various embodiments integrate photo-detection circuits with a secure processor or other circuit in such a manner that the response to a security attack is fast enough to prevent loss of secure or private information are described. Various embodiments include circuits capable of providing a permanent record of photocurrent detection.

公开(公告)号：US20220238460A1

公开(公告)日：2022-07-28

申请号：US17494747

申请日：2021-10-05

Applicant: QUALCOMM Incorporated

Inventor： Alan LEWIS ,  Zhengming FU ,  Nan CHEN ,  Adam POLAK ,  Laura FUENTES ,  Gregory BULLARD ,  Mark TODOROVICH

IPC: H01L23/00 ,  H01L27/144 ,  G06F21/75

Abstract: Various embodiments include integrated approaches to detecting attempts to breach system-level or chip-level security using photo-generated currents induced by lasers or other radiation sources. Various embodiments integrate photo-detection circuits with a secure processor or other circuit in such a manner that the response to a security attack is fast enough to prevent loss of secure or private information are described. Various embodiments include circuits capable of providing a permanent record of photocurrent detection.