Time synchronization system, receiving server and time synchronization method

Method and system for optical timing transfer

Onboard communication system and communication method

Long-distance RF frequency and time transfer

Control card circuit and method for selecting a synchronization source among a plurality of line card circuits

System for providing a cluster-wide system clock in a multi-tiered full-graph interconnect architecture

Synchronization of VoDSL of DSLAM connected only to ethernet

Pulse link and apparatus for transmitting data and timing information on a single line

Next generation network system based on TCM ISDN technique and control method thereof

Synchronization system using at least one external office line signal and synchronization control method thereof

Power reduction in switch architectures

Multipacket interface

Asynchronous system-on-a-chip interconnect

Concurrent transmission of traffic from multiple communication interfaces

Automated access network cross-connect system

Transport of DTMF tones over VOATM/VOIP networks

Switching arrangement including time-slot buses and serveral buffers

Methods, systems, and storage mediums for maintaining timing supplies and assignments

Signal processing unit with serial time multiplex connections between signal processing and control means

Switching matrix for a telecommunication network element

Multi-chassis broadcast router having a common clock

Scheduling method of realizing the quality of service of router in integrated service