Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for transferring different types of streaming and packetized data across an Ethernet transmission line using a frame and packet structure demarcated with ethernet coding violations

A streaming data and data technology, applied in transmission systems, electromagnetic wave transmission systems, time-division multiplexing systems, etc., can solve problems such as increasing the complexity of network software and hardware drivers

Active Publication Date: 2009-03-11
STANDRD MICROSYSTEMS CORPORATION
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The need for two separate Ethernet networks and the maintenance of an asynchronous protocol between the nodes greatly increases the overhead of the network and the complexity of the software and hardware drivers used by the network

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for transferring different types of streaming and packetized data across an Ethernet transmission line using a frame and packet structure demarcated with ethernet coding violations
  • System and method for transferring different types of streaming and packetized data across an Ethernet transmission line using a frame and packet structure demarcated with ethernet coding violations
  • System and method for transferring different types of streaming and packetized data across an Ethernet transmission line using a frame and packet structure demarcated with ethernet coding violations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] It is recognized that one or more multimedia devices may sample data at a higher sampling rate (fs) than the frame synchronization rate (FSY) of the transmission line. For example, a multimedia device may be a CD player that samples at approximately 44.1 kHz. The CD player can stream data at e.g. 16 bits per sample audio channel (32 bits / stereo channel), thus resulting in a bps Baud rate through the transmission line of 32 bits / stereo sample x 44.1K samples / sec = 1.4112 Mbps . Non-return-to-zero ("NRZ") data from a device can be encoded in several ways. Data may also be encoded using, for example, well-known Miller encoding techniques.

[0064] Alternative encodings include bi-phase encoding, or encoding such that encoding the bitstream does not result in accumulated DC values. The latter coding scheme is often referred to as DC-adaptive coding or DC-free coding, and is described in US Patent No. 6,437,710, which is hereby incorporated by reference. If FSY on the tr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A communication system, network, interface, and port architecture are provided for transporting different types of data across a network. The network can be arranged by connecting the ports in a daisy-chain fashion to achieve a ring architecture or topology. The network forwards data according to a specific network protocol, and nodes among the network can use a recovered clock from the bitstream to drive the transmitter and create a synchronous network even thought the network can receive Ethernet packets which are typically targeted for an asynchronous network. Non-compliant data, such as Ethernet data, can be sent as packets within a frame structure. The frame is synchronized to Ethernet coding violations used to signal the beginning of each frame, and each packet can be immediately followed by a packet coding violation. The frame and packet coding violations are represented as a sequence of 4B / 5B codes that are not valid codes and, therefore, not present as Ethernet encoded data.

Description

technical field [0001] The present invention relates to communication systems, and more particularly to a synchronous communication system of nodes interconnected in a daisy chain, each node having at least two ports for transmission over Ethernet transmission lines (i.e. twisted pair conductors or CAT5 ) to pass information in order to form a virtual ring network, where each node can provide a master clock, or can recover a clock from the network to form a complex Synchronous delivery of various types of data sent in a channel. The ports within each node can accommodate data that conforms to a particular protocol used by the network (ie, "compliant data"), or the ports can accommodate non-compliant data, such as asynchronous Ethernet-based packet data and and / or Sony / Philips Digital Interface Format ("SPDIF") data. Background technique [0002] A communication system is generally considered to be a system that allows communication between nodes interconnected by transmiss...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/64H04J3/06H04B10/564H04B10/66
Inventor D·J·克纳普R·P·穆勒H·C·霍P·海克R·克洛斯C·蒂尔
Owner STANDRD MICROSYSTEMS CORPORATION