1
Gordon T Davis, Michael G Ho Lung, Baiju D Mandalia, Roland J Millas, Oscar E Ortega, Rafael J Picon, Loran R Queen, Richard H Robinson, William R Robinson Jr, Leo A Sharp Jr, Jan W van den Berg: Real-time digital signal processing relative to multiple digital communication channels. International Business Machines Corporation, Robert Lieber, John C Smith, February 5, 1991: US04991169 (200 worldwide citation)

A dual digital signal processor (DSP) provides real time links between multiple time division channels of a digital carrier system (e.g. T-1) and a host data processor. Operating only on digital signals, internally and at its interfaces to the carrier and host systems, the DSP exchanges data and con ...


2
Gordon T Davis, Robert E Landa, Baiju D Mandalia, Jan W van den Berg, David C Van Voorhis: Specialized communications processor for layered protocols. International Business Machines, Winfield J Brown Jr, February 5, 1991: US04991133 (145 worldwide citation)

A special purpose communications protocol processor (CPP) provides more efficient processing of layered communications protocols--e.g. SNA (Systems Network Architecture) and OSI (Open Systems Interconnection)--than contemporary general purpose processors, permitting hitherto unavailable operations r ...


3
Gordon T Davis, Sebastian Ventrone: Method and apparatus for substantially concurrent multiple instruction thread processing by a single pipeline processor. International Business Machines Corporation, Heslin & Rothenberg, October 18, 1994: US05357617 (96 worldwide citation)

A hybrid pipelined processor and associated processing methods are described for separately handling substantially concurrently in a time division manner multiple program instruction threads. The hybrid architecture includes an instruction fetch unit, an instruction decode unit and an execution unit ...


4
Claude Basso, Jean L Calvignac, Gordon T Davis, Piyush C Patel: Longest prefix match lookup using hash function. International Business Machines Corporation, James A Lucas, Driggs Hogg & Fry Co LPA, August 8, 2006: US07089240 (42 worldwide citation)

A method and apparatus are used for finding the longest prefix match in a variable length prefix search when searching a direct table within a routing table structure of a network processor. The search through the routing table structure is expedited by hashing a first segment of an internet protoco ...


5
Gordon T Davis, Charles B Dillon, Laurence V Marks: System and method for communicating with digital and analog devices via a single digital interface. International Business Machines Corporation, Stephen T Keohane, Michael G Verga, January 9, 1996: US05483530 (37 worldwide citation)

The invention is an ISDN terminal equipment which will maintain connectivity with existing analog modems by setting up a voice-grade connection to existing analog modems and using the power of a digital signal processor DSP to generate the digital equivalent of the analog modem signals for transmiss ...


6
Gordon T Davis: Programmable sequential logic array mechanism. International Business Machines Corporation, Richard E Bee, November 2, 1982: US04357678 (34 worldwide citation)

A programmable sequential logic array mechanism is provided for performing logical operations and solving logical equations. The mechanism includes a search array subsystem for receiving a plurality of binary input signals. The search array subsystem includes an addressable storage array for supplyi ...


7
Gordon T Davis, Judith M Linger, Baiju D Mandalia, John C Sinibaldi, William M Zevin, Karl Heinz Ziegenhain: Method and system for automatically determining data communication device type and corresponding transmission rate. International Business Machines Corporation, Bernard D Bogdon, February 13, 1996: US05491720 (33 worldwide citation)

A method and system in a data communications system for automatically determining a data communication device type and a transmission speed associated with the data communication device type. An incoming communication is detected on a transmission line, and transmit and receive hardware are connecte ...


8
Dana L Blair, Gordon T Davis, Cloyd S McIlvaine: HDLC asynchronous to synchronous converter. International Business Machines Corporation, Joscelyn G Cockburn, December 17, 1996: US05586273 (30 worldwide citation)

Communication, using a synchronous protocol, over a synchronous communications link, between synchronous application programs executed on a terminal (i.e., personal computer, PC) with an asynchronous byte-oriented interface and a PC with a synchronous frame orientated interface is made possible by e ...


9
Gordon T Davis, Baiju D Mandalia: Coherent phase shift keyed demodulator. International Business Machines, October 3, 1989: US04871974 (28 worldwide citation)

A demodulator mechanism which uses estimates of the in-phase and quadrature-phase components of differential phase modulated carrier signals for performing a coherent demodulation of these signals is described. The instantaneous estimates, obtained from an estimator circuit, are fed into a different ...


10
Gordon T Davis, Sebastian T Ventrone, John J Reilly, Baiju D Mandalia, Michael G Holung, William R Robinson Jr: RISC-type pipeline processor having N slower execution units operating in parallel interleaved and phase offset manner with a faster fetch unit and a faster decoder. International Business Machines Corporation, Heslin & Rothenberg, October 17, 1995: US05459843 (27 worldwide citation)

A pipelined, RISC-type processor operated in parallel mode and its associated processing methods for separately handling instructions from multiple program instruction sets. The pipelined processor includes an instruction fetch unit, an instruction decode unit and n execution units. Each execution u ...