Multi-access ATD multiplexer with congestion detection circuitry

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5119372
SERIAL NO

07518901

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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As shown in FIG. 2 an ATD multiplexer (1-i) comprises a congestion detector (34) for detecting internal traffic congestion when a data cell stream is transferred from one of the two data inputs (4, 5) to the data output (6). If internal traffic congestion occurs, congestion signal transmitter (36) will supply a congestion signal. An upstream ATD multiplexer (1-j) will receive this congestion signal as an external congestion signal through congestion signal receiver (37) and in response thereto blocks one of its two data inputs (4, 5). In this fashion the data supply to ATD multiplexer (1-i) will be restricted. If the data supply to ATD multiplexer (1-i) is restricted to such an extent that internal traffic congestion no longer occurs in ATD multiplexer (1-i), the blocking of the blocked data input in ATD multiplexer (1-j) will be removed in a delayed manner. The congestion signals can be transmitted over data bus (10) between data input (4, 5) of ATD multiplexer (1-i) and data output (6) of ATD multiplexer (1-j). Thus no special wire is required for transmitting congestion signals.

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First Claim

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Patent Owner(s)

  • AT&T BELL LABORATORIES;AT & T NETWORK SYSTEMS INTERNATIONAL B.V., LARENSEWEG 50, 1200 BD HILVERSUM, THE NETHERLANDS, A CORP. OF THE NETHERLANDS

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Verbeek, Robert J M Hilversum, NL 8 149

Cited Art Landscape

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