公开(公告)号：US20250055668A1

公开(公告)日：2025-02-13

申请号：US18448936

申请日：2023-08-13

Applicant: Mellanox Technologies, Ltd.

Inventor： Natan Manevich ,  Dotan David Levi ,  Arnon Sattinger ,  Wojciech Wasko ,  Maciej Machnikowski ,  Doron Fael ,  Ofir Sadeh ,  Jonathan Oliel

IPC: H04L7/033 ,  H03L7/099 ,  H04L7/10

Abstract: In one embodiment, a system includes a digitally controlled oscillator (DCO) to generate a local clock having a local clock frequency, and clock synchronization circuitry to receive from a device a signal indicative of a remote clock frequency, compare measures of the remote clock frequency and the local clock frequency; generate a digital control command based on the comparison; and provide the digital control command to the DCO, wherein the DCO is to adjust the local clock frequency responsively to the digital control command.

公开(公告)号：US20250093905A1

公开(公告)日：2025-03-20

申请号：US18470452

申请日：2023-09-20

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Wojciech Wasko ,  Dotan David Levi ,  Natan Manevich ,  Maciej Machnikowski

IPC: G06F1/12 ,  G06F13/42 ,  H04L7/033

Abstract: In one embodiment, a peripheral device includes an oscillator, a counter to be driven by the oscillator and provide a peripheral device counter value, and processing circuitry to receive a host device counter value from a host device, read host device clock translation parameters from a host memory of the host device, the host device clock translation parameters providing translation between the host device counter value and a host device clock time, read peripheral device clock translation parameters providing a translation between the peripheral device counter value and a peripheral device clock time, read the peripheral device counter value, compute a clock correction as a function of a difference between the host device clock time and the peripheral clock time, based on the host device and peripheral device counter values and clock translation parameters, and correct the host device or peripheral device clock translation parameters based on the clock correction.

公开(公告)号：US20250021130A1

公开(公告)日：2025-01-16

申请号：US18349976

申请日：2023-07-11

Applicant: Mellanox Technologies, Ltd.

Inventor： Natan Manevich ,  Dotan David Levi ,  Wojciech Wasko ,  Maciej Machnikowski

IPC: G06F1/12

Abstract: In one embodiment, a system including a reference processing device includes a reference hardware clock to maintain a reference clock value, and reference clock synchronization circuitry to discipline the reference hardware clock responsively to a remote clock, which is remote to the system, and a follower processing device including a follower hardware clock to maintain a follower clock value, and follower clock synchronization circuitry to synchronize the follower hardware clock to the reference hardware clock, and provide an indication about the follower clock value to the reference processing device, wherein the reference clock synchronization circuitry is configured to monitor a quality of the synchronization of the follower hardware clock to the reference hardware clock.

公开(公告)号：US20250105938A1

公开(公告)日：2025-03-27

申请号：US18475297

申请日：2023-09-27

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Natan Manevich ,  Dotan David Levi ,  Maciej Machnikowski ,  Wojciech Wasko ,  Elran Abissror ,  Bar Or Shapira ,  Pavel Efros ,  Jonathan Oliel ,  Ofir Sadeh

IPC: H04J3/14 ,  H04J3/06

Abstract: In one embodiment, a monitoring device includes an interface to receive symbols from at least one monitored device over at least one communication link, at least one counter to track a number of the symbols received from the at least one monitored device over the at least one communication link, and processing circuitry to monitor synchronization of at least one clock of the at least one monitored device based on at least one value of the at least one counter.

公开(公告)号：US20250055667A1

公开(公告)日：2025-02-13

申请号：US18420822

申请日：2024-01-24

Applicant: Mellanox Technologies, Ltd.

Inventor： Natan Manevich ,  Dotan David Levi ,  Nir Laufer ,  Wojciech Wasko ,  Maciej Machnikowski ,  Doron Fael ,  Arnon Sattinger

IPC: H04L7/00 ,  H04L7/04

Abstract: In one embodiment, a system, includes a digitally controlled oscillator (DCO) to generate a local clock signal having a local clock frequency, and a hardware clock to maintain a value indicative of a local clock time advancing at a frequency proportional to the local clock frequency of the local clock signal generated by the DCO, and clock synchronization circuitry to receive from a device an indication of a remote clock time, generate a digital control command to at least partially correct for a difference between the remote clock time and the local clock time, and provide the digital control command to the DCO, wherein the DCO is to adjust the local clock frequency responsively to the digital control command.