Patents by Inventor John M. Dinwiddie

John M. Dinwiddie 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).

  • Publication number: 20030014766
    Abstract: Apparatus for distributing radio frequency (RF) modulated broadcast television signals from a broadcast signal source to networked appliances connected to the source through a plurality of single conductor coaxial cables, simultaneously with distributing unmodulated digital signals and RF modulated video signals exchanged between the networked appliances over the same network coaxial cables.
    Type: Application
    Filed: August 30, 2002
    Publication date: January 16, 2003
    Applicant: Peracom Networks, Inc.
    Inventors: John M. Dinwiddie, William Burrell Nunnery, Jack S. Chorpenning
  • Publication number: 20020172290
    Abstract: A method and apparatus for transporting signals from a high speed serial bus along a coaxial cable without using the physical layer (PHY). The wires from the high speed serial bus are used as analog inputs to a quadrature modulator. The quadrature modulator has a single radio frequency (RF) signal output that is connected to a coaxial cable for transmission along a distance of up to 100 meters. Furthermore, the RF signal is converted by a direct conversion tuner into signal outputs. The signal outputs are coupled to a second high speed serial bus connection. The high speed serial bus may be IEEE1394, Ethernet, or USB cable.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 21, 2002
    Inventors: Jack S. Chorpenning, John M. Dinwiddie
  • Patent number: 6481013
    Abstract: Apparatus for distributing radio frequency (RF) modulated broadcast television signals from a broadcast signal source to networked appliances connected to the source through a plurality of single conductor coaxial cables, simultaneously with distributing unmodulated digital signals and RF modulated video signals exchanged between the networked appliances over the same network coaxial cables.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: November 12, 2002
    Assignee: Peracom Networks, Inc.
    Inventors: John M. Dinwiddie, William Burrell Nunnery, Jack S. Chorpenning
  • Patent number: 5434590
    Abstract: An information handling apparatus for transferring and composing image signals including a plurality of media sources configured to provide a corresponding plurality of image signals, a media bus connected to the media sources, and a media control module coupled to the media bus. The media bus allows selective access for the plurality of image signals. The selective access enables composition of the independent image signals in response to control information. The media control module receives a composed image signal from the media bus and provides the composed image signal to a display device.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: July 18, 1995
    Assignee: International Business Machines Corporation
    Inventors: John M. Dinwiddie, Jr., Bobby J. Freeman, Gustavo A. Suarez, Bruce J. Wilkie
  • Patent number: 5434592
    Abstract: A multimedia solution is presented which allows a multimedia architecture to be implemented on an existing computer system. According to the invention, an expansion unit which incorporates a multimedia architecture is provided. The expansion unit is connected to an existing computer system via an expansion slot of an I/O bus of the existing computer as well as via a display device output terminal of the computer. The expansion unit is also connected to a display device. Accordingly, the expansion unit controls the presentation which is provided on the display device.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: July 18, 1995
    Assignee: International Business Machines Corporation
    Inventors: John M. Dinwiddie, Jr., Bobby J. Freeman, Thomas J. Micallef, Gustavo A. Suarez, Bruce J. Wilkie
  • Patent number: 5388215
    Abstract: The functions of two virtual operating systems (e. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: February 7, 1995
    Assignee: IBM Corporation
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, James M. Joyce, John M. Loffredo, Kenneth R. Sanderson
  • Patent number: 5369749
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: November 29, 1994
    Assignee: IBM Corporation
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, James M. Joyce, John M. Loffredo, Kenneth R. Sanderson
  • Patent number: 5369767
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: November 29, 1994
    Assignee: International Business Machines Corp.
    Inventors: John M. Dinwiddie, Jr., Lonnie E. Grice, John M. Loffredo, Kenneth R. Sanderson
  • Patent number: 5363497
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques, The S/370 is limit checked prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: November 8, 1994
    Assignee: IBM Corporation
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, John M. Loffredo, Kenneth R. Sanderson, Gustavo A. Suarez
  • Patent number: 5325517
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: June 28, 1994
    Assignee: International Business Machines Corporation
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, James M. Joyce, John M. Loffredo, Kenneth R. Sanderson, Gustavo A. Suarez
  • Patent number: 5283868
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: February 1, 1994
    Assignee: International Business Machines Corp.
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, James M. Joyce, John M. Loffredo, Kenneth R. Sanderson
  • Patent number: 5245322
    Abstract: An information handling apparatus for transferring and composing image signals for display. The apparatus includes a bus adapted to allow selective access for multiple independent image signals generated by respective independent image sources. The selective access enables composition of the independent image signals in response to control information; the composition enables real time display of a composed image signal.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: September 14, 1993
    Assignee: International Business Machines Corporation
    Inventors: John M. Dinwiddie, Jr., Bobby J. Freeman, Gustavo A. Suarez, Bruce J. Wilkie
  • Patent number: 5230041
    Abstract: An information handling apparatus for transferring and composing image signals for display including a bus interface circuit adapted to allow selective access to a bus of an independent image signal generated by an independent image source. The selective access enables composition of the independent image signal in response to control information; the composition enables real time display of a composed image signal.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: July 20, 1993
    Assignee: International Business Machines Corporation
    Inventors: John M. Dinwiddie, Jr., Bobby J. Freeman, Gustavo A. Suarez, Bruce J. Wilkie
  • Patent number: 5155809
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: October 13, 1992
    Assignee: International Business Machines Corp.
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, James M. Joyce, John M. Loffredo, Kenneth R. Sanderson
  • Patent number: 5144692
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: September 1, 1992
    Assignee: International Business Machines Corporation
    Inventors: Ernest D. Baker, John M. Dinwiddie, Jr., Lonnie E. Grice, John M. Loffredo, Kenneth R. Sanderson, Gustavo A. Suarez
  • Patent number: 5113522
    Abstract: The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contigous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: May 12, 1992
    Assignee: International Business Machines Corporation
    Inventors: John M. Dinwiddie, Jr., Bobby J. Freeman, Lonnie E. Grice, John M. Loffredo, Kenneth R. Sanderson, Gustavo A. Suarez
  • Patent number: 4479179
    Abstract: A cycle steal mechanism for enabling a host processor to initiate and control the cycle stealing of data to or from a storage unit located in an I/O controller which is connected to the I/O channel bus of the host processor. The I/O controller also includes a microprocessor and a direct memory access (DMA) unit either or both of which can be used to control the transfer of data between the I/O controller storage unit and the host processor. Typically, the DMA unit is used for cycle stealing data between the controller storage unit and the host processor. The cycle steal mechanism of the present invention enables the host processor to also initiate and control the cycle stealing of data to or from the controller storage unit without interrupting the program running in the controller microprocessor and without interrupting the cycle stealing operations of the DMA unit.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: October 23, 1984
    Assignee: International Business Machines Corporation
    Inventor: John M. Dinwiddie, Jr.
  • Patent number: D417671
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: December 14, 1999
    Assignee: Peracom Network, Inc.
    Inventors: Jack S. Chorpenning, John M. Dinwiddie
  • Patent number: D425902
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: May 30, 2000
    Assignee: Peracom Network, Inc.
    Inventors: William James Rathbun, John M. Dinwiddie
  • Patent number: D426192
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: June 6, 2000
    Assignee: Peracom Network, Inc.
    Inventors: William James Rathbun, John M. Dinwiddie