Low latency FIFO circuits for mixed asynchronous and synchronous systems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6850092
APP PUB NO 20020167337A1
SERIAL NO

09877442

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A FIFO design interfaces a sender subsystem and a receiver subsystem operating on different time domains. The sender subsystem and the receiver subsystem may be synchronous or asynchronous. The FIFO circuit includes a put interface configured to operate in accordance with the sender time domain and get interface configured to operate in accordance with the receiver time domain. The FIFO circuit includes an array of cells having a register and state controller indicative of the state of the cell. Each cell also has a put component part configured to operate according to the sender time domain including a put token passing circuit and put controller circuit. Each cell has get component part configured to operate according to the receiver time domain including a get token passing circuit and a get controller circuit. A mixed-clock relay station design interfaces a sender subsystem and a receiver subsystem working at different time domains, and where the latency between sender and receiver is large.

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Patent Owner(s)

Patent OwnerAddress
TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK THE535 WEST 116TH STREET 412 LOW MEMORIAL LIBRARY NEW YORK NY 10027 USA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chelcea, Tiberiu New York, NY 3 89
Nowick, Steven M Leonia, NJ 14 357

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