公开(公告)号：US11265096B2

公开(公告)日：2022-03-01

申请号：US16410275

申请日：2019-05-13

Applicant: Intel Corporation

Inventor： Mark Bordogna ,  Janardhan Satyanarayana ,  Yoni Landau ,  Diwakar Suvvari

IPC: H04J3/07 ,  H04J3/06 ,  H04L1/00 ,  H04L43/106

Abstract: In a transceiver, the accuracy of a packet time stamp can be improved by compensating for errors introduced by processing of the packet. A received packet can be received via multiple lanes. A packet time stamp can be measured using a start of frame delimiter (SFD). A last arriving lane can be used to provide a recovered clock signal. A phase offset between the recovered clock signal and the system clock of the transceiver can be used to adjust the time stamp. A position of the SFD within a data block can be used to adjust the time stamp. A position of the data block within a combined group of data blocks can be used to adjust the time stamp. Also, a serializer-deserializer delay associated with the last arriving lane can be used to adjust the time stamp.

公开(公告)号：US11805042B2

公开(公告)日：2023-10-31

申请号：US17948965

申请日：2022-09-20

Applicant: Intel Corporation

Inventor： Yoni Landau ,  Janardhan Satyanarayana ,  Assaf Benhamou ,  Mark Bordogna

IPC: H04L43/106 ,  H04L69/22 ,  H04L1/00

CPC classification number: H04L43/106 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0058 ,  H04L69/22 ,  H04L1/0057

Abstract: Technologies for timestamping data packets with forward error correction is disclosed. Alignment markers may be inserted in a data stream in order to assist with synchronization on the receiving end. After insertion of the alignment markers, a start of frame delimiter or other trigger may be detected, triggering a timestamp corresponding to the start of frame delimiter or other trigger. The data and the timestamp are sent to a remote compute device, which may timestamp the data before removing the alignment markers. With this approach, insertion of the alignment markers does not lead to a deviation in the timestamp of the sending compute device or the receiving compute device.

公开(公告)号：US11711159B2

公开(公告)日：2023-07-25

申请号：US17134115

申请日：2020-12-24

Applicant: Intel Corporation

Inventor： Mark Bordogna ,  Janardhan Satyanarayana ,  Yoni Landau ,  Diwakar Suvvari

IPC: H04J3/06 ,  H04L43/106 ,  H04J3/07 ,  H04L1/00

CPC classification number: H04J3/073 ,  H04J3/0661 ,  H04J3/0682 ,  H04J3/0697 ,  H04L1/0046 ,  H04L1/0057 ,  H04L1/0067 ,  H04L43/106

Abstract: In a transceiver, the accuracy of a packet time stamp can be improved by compensating for errors introduced by processing of the packet. A received packet can be received via multiple lanes. A packet time stamp can be measured using a start of frame delimiter (SFD). A last arriving lane can be used to provide a recovered clock signal. A phase offset between the recovered clock signal and the system clock of the transceiver can be used to adjust the time stamp. A position of the SFD within a data block can be used to adjust the time stamp. A position of the data block within a combined group of data blocks can be used to adjust the time stamp. Also, a serializer-deserializer delay associated with the last arriving lane can be used to adjust the time stamp.

公开(公告)号：US20230016505A1

公开(公告)日：2023-01-19

申请号：US17948965

申请日：2022-09-20

Applicant: Intel Corporation

Inventor： Yoni Landau ,  Janardhan Satyanarayana ,  Assaf Benhamou ,  Mark Bordogna

IPC: H04L43/106 ,  H04L69/22 ,  H04L1/00

Abstract: Technologies for timestamping data packets with forward error correction is disclosed. Alignment markers may be inserted in a data stream in order to assist with synchronization on the receiving end. After insertion of the alignment markers, a start of frame delimiter or other trigger may be detected, triggering a timestamp corresponding to the start of frame delimiter or other trigger. The data and the timestamp are sent to a remote compute device, which may timestamp the data before removing the alignment markers. With this approach, insertion of the alignment markers does not lead to a deviation in the timestamp of the sending compute device or the receiving compute device.