公开(公告)号：US20190114243A1

公开(公告)日：2019-04-18

申请号：US16218078

申请日：2018-12-12

Applicant: Intel Corporation

Inventor： Umberto Santoni ,  Rahul Pal ,  Philip Abraham ,  Mahesh Mamidipaka ,  C. Santhosh

IPC: G06F11/273 ,  G06F11/16

CPC classification number: G06F11/273 ,  G06F11/1004 ,  G06F11/1616 ,  G06F11/1629 ,  G06F11/1633 ,  G06F11/1641 ,  G06F11/1666

Abstract: A method to check for redundancy in two or more data lines comprises receiving data on a first data line, computing a first cyclic redundancy check (CRC) value on the data of the first data line, performing an exclusive OR (XOR) function on the first CRC value with a stored memory value, and updating the stored memory value with a result of the XOR function, and repeating on additional data lines until a last line is processed such that an error is indicated if a final stored memory value is not zero. An apparatus to check that two cores are operating in lockstep comprises a first core comprising a first data checker, a second core comprising a second data checker, and a lockstep checker to compare an output of the first data checker with an output of the second data checker.

公开(公告)号：US10831628B2

公开(公告)日：2020-11-10

申请号：US16218078

申请日：2018-12-12

Applicant: Intel Corporation

Inventor： Umberto Santoni ,  Rahul Pal ,  Philip Abraham ,  Mahesh Mamidipaka ,  C Santhosh

IPC: G06F11/273 ,  G06F11/16 ,  G06F11/10

Abstract: A method to check for redundancy in two or more data lines comprises receiving data on a first data line, computing a first cyclic redundancy check (CRC) value on the data of the first data line, performing an exclusive OR (XOR) function on the first CRC value with a stored memory value, and updating the stored memory value with a result of the XOR function, and repeating on additional data lines until a last line is processed such that an error is indicated if a final stored memory value is not zero. An apparatus to check that two cores are operating in lockstep comprises a first core comprising a first data checker, a second core comprising a second data checker, and a lockstep checker to compare an output of the first data checker with an output of the second data checker.

公开(公告)号：US20200017114A1

公开(公告)日：2020-01-16

申请号：US16579376

申请日：2019-09-23

Applicant: Intel Corporation

Inventor： Umberto Santoni ,  Riccardo Mariani ,  John Weast

IPC: B60W50/023 ,  B60W50/02 ,  G06F11/16 ,  G07C5/08 ,  G05D1/00

Abstract: An automated driving system includes a security companion subsystem to access data generated at a compute subsystem of the automated driving system, which indicates a determination by the compute subsystem associated with an automated driving task. The security companion subsystem determines whether the determination is safe based on the data. The security companion subsystem is configured to realize a higher safety integrity level than the compute subsystem.