Smsc Holdings Sarl

Smsc Europe Gmbh

Oasis Design, Inc.

Standard Microsystems Corporation

Microchip Technology Germany Gmbh

Rainer P Mueller

David J Knapp

Horace C Ho

Patrick Heck

Shivanand I Akkihal

Rainer Klos

Kevin Rolfes

Pak Y Tam

Christian Thiel

A communication system, network, interface, and port architecture are provided for transporting 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. A first port forwards frames having a preemptive acknowledge field before the payload. A second port receives these frames, stores them in a frame buffer and modifies the preemptive acknowledge field according to its available frame buffer capacity. Said first port controls its data flow according to the modified preemptive acknowledge field.

System and method for transferring data packets through a communication system

A communication system and method is provided herein for synchronizing a plurality of network nodes after a network lock condition occurs within a network. According to one embodiment, the method may generate a local trigger signal simultaneously at each of the plurality of network nodes by compensating for unique phase delays attributed to each of the plurality of network nodes. As described herein, the local trigger signals may be used for synchronizing devices, such as multimedia devices, which may be coupled to the network nodes. More specifically, the local trigger signals may be used to synchronize events occurring within devices, which are coupled to different nodes of the network.

Communication system and method for synchronizing a plurality of network nodes after a network lock condition occurs

A communication system is provided for interconnecting a network of digital systems. Each node of the communication system may include a transceiver and an encoder/decoder. The encoder codes an incoming data stream and forwards the encoded data stream across a communication link based on a DC-adaptive encoding mechanism. The encoded data stream is substantially free of a DC value that would skew the detector components at the receiver end of the communication link. Moreover, the encoded signal is forwarded at no greater than the incoming bitstream. Encoding occurs dependent on a digital sum value of the preceding clock cycle (DSV ) for the encoded bitstream and the logic values for the incoming bitstream during the current clock cycle n as well as the subsequent clock cycle n&plus;1. Encoding according to normal encoding or multiple-ones encoding is dependent on those values. A coding violation can be used within a preamble to synchronize a decoder, detect transmission errors, and to quickly lock the phase-locked loop within the receiver.

Encoder within a communication system that avoids encoded DC accumulation and can use coding violations to synchronize a decoder and detect transmission errors

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Austin, TX, United States of America

Rainer P Mueller