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Precision timing in a data over cable service interface specification (DOCSIS) system
US9014282B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9014282-B2 |
| Application number | US-201213480604-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2012 |
| Priority date | May 27, 2011 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
Official abstract text for this publication.
An accurate non-Data Over Cable Service Interface Specification (non-DOCSIS) clock signal is generated at the downstream output of a DOCSIS network. In one example method, a downstream DOCSIS Timing Protocol (DTP) client in the DOCSIS network is frequency synchronized to an upstream DTP server in the DOCSIS network. DOCSIS timing information, along with one or more timing correction factors received at the DTP client, is used to time synchronize the DTP client to the DTP server. Based on the time and frequency synchronization between the DTP server and the DTP client, the clock signal is generated at the output of the DTP client in accordance with the non-DOCSIS timing protocol.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: frequency synchronizing a downstream Data Over Cable Service Interface Specification (DOCSIS) Timing Protocol (DTP) client in a DOCSIS network to an upstream DTP server in the DOCSIS network, including synchronizing a frequency of an interface on the DTP client to a downstream DOCSIS Quadrature Amplitude Modulation (QAM) carrier frequency from the DTP server; time synchronizing the DTP client to the DTP server based on DOCSIS timing in…
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- H04J3/0667Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9014282B2 cover?
- An accurate non-Data Over Cable Service Interface Specification (non-DOCSIS) clock signal is generated at the downstream output of a DOCSIS network. In one example method, a downstream DOCSIS Timing Protocol (DTP) client in the DOCSIS network is frequency synchronized to an upstream DTP server in the DOCSIS network. DOCSIS timing information, along with one or more timing correction factors rec…
- Who is the assignee on this patent?
- Chapman John T, Chopra Rakesh, Montini Laurent, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H04J3/0667. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 21 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).