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Method and apparatus for providing a gigabit ethernet circuit pack

a technology of ethernet circuit pack and ethernet network, applied in the field of data network system, can solve the problems of not being able to provide a viable alternative to expanding the existing network, and not always being able to increase the communication bandwidth

Inactive Publication Date: 2002-08-15
INTELLECTUAL VENTURES FUND 83 LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While adding more optical fiber to the existing communications network infrastructure is a costly option to meet the increasing demand for communication bandwidth, in some locations, expanding the existing network may not be a viable alternative.
Additionally, given the high cost of installation and the extensive amount of time required, adding more optical fiber is not always an attractive option to increase communications bandwidth.

Method used

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  • Method and apparatus for providing a gigabit ethernet circuit pack
  • Method and apparatus for providing a gigabit ethernet circuit pack
  • Method and apparatus for providing a gigabit ethernet circuit pack

Examples

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Embodiment Construction

[0054] FIG. 1 illustrates an overall system in the add direction in accordance with one embodiment of the present invention. Referring to FIG. 1, in the overall system 100, there is provided a clock recovery unit 110, a data translation unit 120, an STS-3 inverse multiplexer 130, and a phase-lock loop (PLL) unit 150. Furthermore, the data translation unit 120 includes a 10 bit-to-9 bit translation table 121. In one aspect of the present invention, 8B / 10B encoded data is provided to the clock recovery unit 110. For example, both Gigabit Ethernet and Fiber Channel signals are encoded using the 8B / 10B encoding scheme. In particular, under this coding scheme, 8 data bits are translated into 10 bits for the purpose of transition density of data for the clock recoveries and parity information for additional error detection.

[0055] Referring back to FIG. 1, in one embodiment, the clock recovery unit 110 is configured to recover clock signals from the received encoded data and to provide the...

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Abstract

Method and system for providing data transmission with transparency over the Gigabit Ethernet data stream includes receiving the 10 bit code with a data rate of 1,250 Mbits / second from the encoded 8B / 10B data and arbitrarily selecting 9 bit codes using a look-up translation table which can fully represent the 10 bit codes received. The translated 9 bit codes with a data rate of 1,125 Mbits / second is then provided to eight STS-3 inverse multiplexer which inverse multiplexes the received codes into eight STS-3 data streams each with a data rate of 155.52 Mbits / second plus an offset DELTA which are then provided to the modem for transmission to the far end via the optical transmission path.

Description

[0001] This application claims priority under 35 USC .sctn.119 to provisional application No. 60 / 269,225 entitled "Method and Apparatus for Providing a Gigabit Ethernet Circuit Pack" filed on Feb. 14, 2001, and to provisional patent application entitled "System and Method for Recovering RZ Formatted Data Using NRZ Clock and Data Recovery," having inventors Nicholas J. Possley and David B. Upham, filed May 9, 2001, the disclosures of each of is incorporated herein by reference for all purposes.[0002] 1. Field of the Invention[0003] The present invention relates to data network systems. In particular, the present invention relates to method and apparatus for providing transparently transporting 155 Mb / s signals through a high speed data network.[0004] 2. Description of the Related Art[0005] Optical fiber is a transmission medium that is well suited to meet the increasing demand in data transmission in communication networks. Generally, optical fiber has a much greater bandwidth than m...

Claims

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Application Information

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IPC IPC(8): H04J3/06H04L7/02H04L12/413H04L25/49
CPCH04J3/1617H04L7/0066H04L25/4908Y10S370/907
Inventor JORGENSON, ANTHONY WILLIAMPOSSLEY, NICHOLAS JOSEPH
Owner INTELLECTUAL VENTURES FUND 83 LLC
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