Patents by Inventor Donall G. Bourke

Donall G. Bourke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5509124
    Abstract: In a data processing system, an input output bus unit (IOBU) is connected to one end of an input output interface controller (IOIC) via an asynchronous bus. The other end of the IOIC is connected to a storage controller (SC) and an input output interface unit (IOIU) via a synchronous bus. The SC and IOIU are connected to a memory unit and an instruction processing unit. The asynchronous bus, which is comprised of three sub-buses and a control bus, conducts signals between the IOIC and an IOBU in an asynchronous "handshaking" manner. The synchronous bus, which is comprised of two sub-buses and a control bus, conducts signals between the IOIC and the SC/IOIU in an synchronous manner. The IOIC, interconnected between the synchronous bus and asynchronous bus, functions as a buffer between the faster synchronous bus and the slower asynchronous bus.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 16, 1996
    Assignee: International Business Machines Corporation
    Inventors: Donall G. Bourke, Douglas R. Chisholm, Gregory D. Float, Richard A. Kelley, Roy Y. Liu, Carl A. Malmquist, John M. Nelson, Charles B. Perkins, Jr., Richard L. Place, Hartmut R. Schwermer, John D. Wilson
  • Patent number: 5455916
    Abstract: In a data processing system, an input output bus unit (IOBU) is connected to one end of an input output interface controller (IOIC) via an asynchronous bus. The other end of the IOIC is connected to a storage controller (SC) and an input output interface unit (IOIU) via a synchronous bus. The SC and IOIU are connected to a memory unit and an instruction processing unit. The asynchronous bus, which is comprised of three sub-buses and a control bus, conducts signals between the IOIC and an IOBU in an asynchronous "handshaking" manner. The synchronous bus, which is comprised of two sub-buses and a control bus, conducts signals between the IOIC and the SC/IOIU in an synchronous manner. The IOIC, interconnected between the synchronous bus and asynchronous bus, functions as a buffer between the faster synchronous bus and the slower asynchronous bus.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: October 3, 1995
    Assignee: International Business Machines Corporation
    Inventors: Donall G. Bourke, Douglas R. Chisholm, Gregory D. Float, Richard A. Kelley, Roy Y. Liu, Carl A. Malmquist, John M. Nelson, Charles B. Perkins, Jr., Richard L. Place, Hartmut R. Schwermer, John D. Wilson
  • Patent number: 5276814
    Abstract: In a data processing system, an input output bus unit (IOBU) is connected one end of an input output interface controller (IOIC) via an asynchronous bus. The other end of the IOIC is connected to a storage controller (SC) and an input output interface unit (IOIU) via a synchronous bus. The SC and IOIU are connected to a memory unit and an instruction processing unit. The asynchronous bus, which is comprised of three sub-buses and a control bus, conducts signals between the IOIC and an IOBU in an asynchronous handshaking manner. The synchronous bus, which is comprised of two sub-buses and a control bus, conducts signals between the IOIC and the SC/IOIU in an synchronous manner. The IOIC, interconnected between the synchronous bus and asynchronous bus, functions as a buffer between the faster synchronous bus and the slower asynchronous bus. Various operations are performed between an IOBU and the memory unit via the asynchronous bus, IOIC, synchronous bus, message acceptance operation.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: January 4, 1994
    Assignee: International Business Machines Corporation
    Inventors: Donall G. Bourke, Douglas R. Chisholm, Gregory D. Float, Richard A. Kelley, Roy Y. Liu, Carl A. Malmquist, John M. Nelson, Charles B. Perkins, Jr., Richard L. Place, Hartmut R. Schwermer, John D. Wilson
  • Patent number: 5199106
    Abstract: In a data processing system, an input output bus unit (IOBU) is connected to one end of an input output interface controller (IOIC) via an asynchronous bus. The other end of the IOIC is connected to a storage controller (SC) and an input output interface unit (IOIU) via a synchronous bus. The SC and IOIU are connected to a memory unit and an instruction processing unit. The asynchronous bus, which is comprised of three sub-buses and a control bus, conducts signals between the IOIC and an IOBU in an asynchronous "handshaking" manner. The synchronous bus, which is comprised of two sub-buses and a control bus, conducts signals between the IOIC and the SC/IOIU in an synchronous manner. The IOIC, interconnected between the synchronous bus and asynchronous bus, functions as a buffer between the faster synchronous bus and the slower asynchronous bus.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: March 30, 1993
    Assignee: International Business Machines Corporation
    Inventors: Donall G. Bourke, Douglas R. Chisholm, Gregory D. Float, Richard A. Kelley, Roy Y. Liu, Carl A. Malmquist, John M. Nelson, Charles B. Perkins, Jr., Richard L. Place, Hartmut R. Schwermer, John D. Wilson
  • Patent number: 4268906
    Abstract: An I/O controller is provided for transferring data between a host processor and a plurality of I/O devices wherein the host processor generates a transfer command and each of the plurality of I/O devices generates multiple asynchronous service requests for transfer to the host processor. Control circuitry is provided for controlling the transfer of the service requests from the plurality of I/O devices to the host processor. The control circuitry generates a host processor interrupt signal for application to the host processor, such that in response to the host processor interrupt signal, the host processor generates the transfer command to allow the control circuitry to transfer the service requests to the host processor.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: May 19, 1981
    Assignee: International Business Machines Corporation
    Inventors: Donall G. Bourke, Richard N. Mendelson, Luis Madruga