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Thomas Martin Wicki, Jeffrey Dale Larson, Albert Mu: Method and apparatus for coordinating access to an output of a routing device in a packet switching network. Fujitsu, Fenwick & West, April 6, 1999: US05892766 (106 worldwide citation)

Arbitration apparatus and method coordinate access to an output of a routing device in a packet switching network. Access to the output is granted to requests having the highest priority in a current arbitration cycle. For requests having the same priority, access is granted to the first of such req ...


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Thomas M Wicki, Jeffrey D Larson, Albert Mu, Raghu Sastry: Low latency, high clock frequency plesioasynchronous packet-based crossbar switching chip system and method. Fujitsu, Fenwick & West, November 17, 1998: US05838684 (90 worldwide citation)

An plesioasynchronous and asynchronous router circuit communicates with neighboring router circuits and nodes. Each of the router circuits includes a plurality of input ports for receiving frames of data and a plurality of output ports for transmitting frames of data. Each router circuit further inc ...


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Albert Mu, Jeffrey D Larson: Crossbar switch and method with crosspoint circuit. Fujitsu, Fenwick & West, December 3, 2002: US06490213 (59 worldwide citation)

A switch system and method transfer a data packet from a source data port to one or more destination data ports through a switch. The system includes at least one crosspoint circuit. A crosspoint circuit in the switch system includes a first and a second reduced voltage swing line, a first and a sec ...


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Albert Mu: Clocked sense amplifier with positive source feedback. HaL Computer Systems, Albert C Smith, March 25, 1997: US05615161 (33 worldwide citation)

A differential sense amplifier includes positive feedback cross coupling to control operation in one mode as a differential sense amplifier and in another mode as a latch to control a data-latching load. Circuit nodes are precharged and equalized in response to applied enable signal.


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Albert Mu, Jeffrey D Larson: Crossbar switch and method with reduced voltage swing and no internal blocking data path. Fujitsu, Fenwick & West, November 23, 1999: US05991296 (26 worldwide citation)

A switch system and method transfer a data packet from a source data port to one or more destination data ports through a switch. The system comprises a source input buffer, a first and a second source input path, a first and a second output path and at least one crosspoint circuit. The source input ...


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Thomas M Wicki, Patrick J Helland, Jeffrey D Larson, Albert Mu, Raghu Sastry, Richard L Schober Jr: System and method for controlling data transmission between network elements. Fujitsu, Fenwick & West, December 14, 1999: US06003064 (23 worldwide citation)

A system and method for controlling data transmission between two network elements. A first port of a transmitting element is coupled to a second port of a receiving element. The second port includes buffers for temporarily storing received data until the data can be sent to another element. Include ...


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Raghu Sastry, Jeffrey D Larson, Albert Mu, John R Slice, Richard L Schober Jr, Thomas M Wicki: Interconnect fault detection and localization method and apparatus. Fujitsu, Fenwick & West, November 16, 1999: US05987629 (17 worldwide citation)

A method and apparatus for detecting and isolating an interconnect fault in a packet switched network generates a parity check error code for status messages which are used for flow control in a packet switched network. The packet switched network uses a reverse flow control method wherein status me ...


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Raghu Sastry, Jeffrey D Larson, Albert Mu, John R Slice, Richard L Schober Jr, Thomas M Wicki: Interconnect fault detection and localization method and apparatus. Fujitsu, Fenwick & West, June 16, 1998: US05768300 (12 worldwide citation)

A method and apparatus for detecting and isolating an interconnect fault in a packet switched network generates a parity check error code for status messages which are used for flow control in a packet switched network. The packet switched network uses a reverse flow control method wherein status me ...


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