Michael Bennett Smith
Engineers at 98 Pl, Westminster, CO

6574233, Jun 3, 2003

Apr 9, 1999

09/289516

Donald G. Koch - Broomfield CO
Victor Medrano - Thornton CO
Richard D. Miller - Northglenn CO
Michael A. Smith - Broomfield CO
Richard A. Windhausen - Boulder CO

Avaya Technology Corp. - Basking Ridge NJ

H04L 1228

370421, 370282, 710305

Disclosed is a way of enhancing capabilities of an interface, such as a communications bus ( ), while retaining backwards compatibility of the interface. The bus has a plurality of signal lines ( ) including critical control signal lines. Legacy devices ( ) present a legacy interface to each other over the bus by communicating with each other via a legacy protocol ( ) over the bus. Critical control signals of the legacy protocol are conveyed by the critical control signal lines. New devices ( ) present an enhanced interface to each other over the same bus by communicating with each other via an enhanced protocol ( ) over the bus. Control signals of the enhanced protocol are conveyed by signal lines other than the critical control signal lines for the legacy protocol, so that the critical control signal lines remain idle or invalid for the legacy protocol. The new devices signal to each other an intent to use the enhanced protocol by sending a signal on a signal line ( ) that is not used by the legacy protocol. The new devices preferably can communicate on the bus via either protocol, and thus can communicate not only with each other but also with the legacy devices.

5305308, Apr 19, 1994

Oct 29, 1992

7/968559

Michael J. English - Aurora CO
Charles Y. Farwell - Denver CO
Michael L. Hearn - Broomfield CO
Richard M. Heidebrecht - Boulder CO
David M. Kissel - Boulder CO
Paul E. Miller - Northglenn CO
Richard D. Miller - Northglenn CO
Alan S. Mulberg - Boulder CO
Michael A. Smith - Westminster CO
Douglas A. Spencer - Boulder CO
John S. Thompson - Boulder CO
Richard A. Windhausen - Westminster CO

AT&T Bell Laboratories - Murray Hill NJ

H04Q 702

370 321

A wireless-access communications system, such as a CDMA cellular radio-telephone system (FIG. 2), comprises a packet-switched communications network (202, 207, 201) that interconnects cells (base stations; 202) with each other and with the public telephone network (100). Traffic of individual calls is packetized, and packet-bearing frames (300 in FIG. 7) of a plurality of calls are then statistically multiplexed and frame-relayed through the network to yield the high capacity, efficiency, and speed of traffic transport and handoff required for a CDMA cellular system. At each call processing unit (264 in FIG. 5), individual calls are handled by individual service circuits (602 & 612) which perform speech-processing functions such as coding and decoding, tone insertion, and echo cancellation, and packet-to-circuit-switched-PCM traffic conversion. Processors (602) adapt call processing unit timing to compensate for asynchrony between cells and call processing units and variations in call path transmission delays. Cell-to-cell communications, fixed call path addressing, and packetized control message transfers ensure that the same service circuit handles a call through even multiple soft handoffs (FIGS.

5195090, Mar 16, 1993

Jul 9, 1991

7/727498

Brian D. Bolliger - Winfield IL
Talmage P. Bursh - South Orange NJ
Marc K. Dennison - Berkeley Heights NJ
Michael J. English - Aurora CO
Charles Y. Farwell - Denver CO
Michel L. Hearn - Broomfield CO
Richard M. Heidebrecht - Boulder CO
Kelvin K. Ho - Somerset NJ
Kenneth Y. Ho - Syosset NY
David M. Kissel - Boulder CO
Paul E. Miller - Northglenn CO
Richard D. Miller - Northglenn CO
Alan S. Mulberg - Boulder CO
LaJeana N. Roberts - Bedminster NJ
Michael A. Smith - Westminster CO
Kenneth F. Smolik - Naperville IL
Douglas A. Spencer - Boulder CO
Kenneth W. Strom - Naperville IL
John S. Thompson - Boulder CO
Richard A. Windhausen - Westminster CO

AT&T Bell Laboratories - Murray Hill NJ

H04J 302

370 941

A wireless-access communications system, such as a CDMA cellular radio-telephone system (FIG. 2), comprises a packet-switched communications network (202, 207, 201) that interconnects cells (base stations; 202) with each other and with the public telephone network (100). Traffic of individual calls is packetized, and packet-bearing frames (300 in FIG. 7) of a plurality of calls are then statistically multiplexed and frame-relayed through the network to yield the high capacity, efficiency, and speed of traffic transport and handoff required for a CDMA cellular system. At each call processing unit (264 in FIG. 5), individual calls are handled by individual service circuits (602 and 612) which perform speech-processing functions such as coding and decoding, tone insertion, and echo cancellation, and packet-to-circuit-switched-PCM traffic conversion. Processors (602) adapt call processing unit timing to compensate for asynchrony between cells and call processing units and variations in call path transmission delays. Cell-to-cell communications, fixed call path addressing, and packetized control message transfers ensure that the same service circuit handles a call through even multiple soft handoffs (FIGS.

5862131, Jan 19, 1999

Oct 10, 1996

8/728814

Norman W. Petty - Boulder CO
Michael A. Smith - Broomfield CO
Douglas A. Spencer - Boulder CO

Lucent Technologies Inc. - Murray Hill NJ

H04J 316, H04Q 1104

370362

A port circuit (108) for a time-division multiplexed (TDM) switching system (100) is designed to effect sub-time-slot operation without external support, as well as to effect conventional, time-slot operation. A clock-frequency multiplier, such as a frequency-multiplexed phase-lock loop (PLL 202), and a multiplier-driven sub-time-slot operation circuit, such as a PLL-driven finite state machine (203), are incorporated into the port circuit. The clock-frequency multiplier and the sub-time-slot operation circuit generate all the additional control signals that are necessary to define sub-time slots and to effect multiple information transfers in a single time slot. The port circuit engages in conventional time-slot transfers with conventional port circuits, whereby it is compatible therewith, and engages in sub-time-slot transfers with other sub-time-slot enabled port circuits, whereby it increases the transfer throughput of the TDM switching fabric. The sub-time-slot operation is selectively enabled and disabled on a per-time-slot basis.