Dostál, 2013 - Google Patents
Hardware support for precise time and frequency distributionDostál, 2013
View PDF- Document ID
- 1549491561313178051
- Author
- Dostál J
- Publication year
- Publication venue
- Embedded Systems Workshop
External Links
Snippet
The need for precise time and frequency synchronization between devices with microsecond accuracy is nowadays not only scietific problem but it has much more practical impact. Precise time is of course the base of the GPS system and modern telecomunications …
- 238000005259 measurement 0 description 11
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0664—Clock or time synchronisation among packet nodes using timestamps unidirectional timestamps
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0673—Clock or time synchronisation among packet nodes using intermediate nodes, e.g. modification of a received timestamp before further transmission to the next packet node, e.g. including internal delay time or residence time into the packet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0647—Synchronisation among TDM nodes
- H04J3/065—Synchronisation among TDM nodes using timestamps
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
- H04J3/0697—Synchronisation in a packet node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
- H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
- G04F10/06—Apparatus for measuring unknown time intervals by electric means by measuring phase
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Moreira et al. | White rabbit: Sub-nanosecond timing distribution over ethernet | |
| CN104917582B (en) | High precision clock distributes and phase automatic compensating system and its phase regulation method | |
| JP5378601B2 (en) | High precision synchronization method and system | |
| US20070260906A1 (en) | Clock synchronization method and apparatus | |
| Loschmidt et al. | Highly Accurate Timestamping for Ethernet‐Based Clock Synchronization | |
| CN103368721A (en) | Computing method for transparent clock in time-triggered Ethernet | |
| TWI642277B (en) | Frequency division clock alignment | |
| Gong et al. | Sub-nanosecond timing system design and development for LHAASO project | |
| CN102638339B (en) | Method and device for realizing precision time synchronization | |
| CN111106894A (en) | Time synchronization method and system | |
| Dong et al. | The design and implementation of ieee 1588v2 clock synchronization system by generating hardware timestamps in mac layer | |
| CN104426600B (en) | Automatic optical fiber transmission delay locking and equalization method | |
| Wu et al. | Synchronizing device clocks using IEEE 1588 and Blackfin embedded processors | |
| CN115801175A (en) | Time frequency synchronization method, system, storage medium and electronic device | |
| Dostál | Hardware support for precise time and frequency distribution | |
| Daniluk et al. | White rabbit: Sub-nanosecond synchronization for embedded systems | |
| CN114142957A (en) | Remote time-frequency equipment testing method | |
| Li et al. | Time synchronization of white rabbit network based on kalman filter | |
| WO2022160283A1 (en) | Sampling method, sampling circuit, and clock synchronization method of distributed network | |
| Dostál et al. | The hardware architecture and device for accurate time signal processing | |
| Dostâl et al. | Atomic clock comparison over optical network | |
| CN112564838A (en) | Time-sensitive Ethernet communication system and method based on carry chain | |
| Huckeba et al. | Precise time synchronization using IEEE 1588 for LXI applications | |
| CN202872805U (en) | A synchronizer | |
| CN118367901A (en) | Clock delay synchronization device and system based on gating clock |