Method and apparatus for accounting for propogation delay with distributing a clock signal
US12368568B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2022 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Mar 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A clock signal in a clock distribution network is transmitted using network packets with the clock signal embedded within a bit of the network packets. The clock signal is adjusted to account for propagation delay in transmitting the clock signal throughout a clock distribution network. The propagation delay is computed using a round-trip packet. When a previous clock signal is received, a timer is set to a local clock's estimate of when the next clock signal will occur minus the propagation delay to the downstream device. When this timer expires, the clock signal is sent to the downstream device, which will allow it to arrive at the downstream device at the same time as the next clock signal is received on the local device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.