Patents by Inventor Ahmed M. Tolba

Ahmed M. Tolba 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: 8312212
    Abstract: Various embodiments of the present invention are directed to systems and methods for “attaching” a virtual hard drive to the physical computer hardware by implementing a specialized disk controller driver for the host operating system that is recognized by the host operating system as a disk controller driver but which in fact also emulates the virtual hard disk it is “attached” to. When the host operating system sends requests to read and write sectors from the virtual hard drive, the specialized driver (the “virtual hard drive controller driver”) directly accesses and manipulates the back-end file mentioned above. Thus the virtual disk is “attached” and recognizable by the host operating system and can be manipulated thereby (and applications executing thereon).
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: November 13, 2012
    Assignee: Microsoft Corporation
    Inventor: Ahmed M. Tolba
  • Patent number: 8180905
    Abstract: Techniques are disclosed for a user-mode based remote desktop protocol (RDP) encoding architecture. A user mode desktop application and user mode virtual channel application run in user-mode session space. Virtual channel data from the virtual channel application is marshaled and sent to a RDP encoder process in user-mode system space. There it is converted to RDP protocol data units (PDU) and sent to a remote client across a communications network. Graphics data from the desktop application is sent to a display driver in kernel-mode session space and then to a graphics reflector that marshals the graphics data and sends it to the RDP encoder for a similar transformation.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 15, 2012
    Assignee: Microsoft Corporation
    Inventors: Wilhelm R. Schmieder, Nelamangal Krishnaswamy Srinivas, Costin Hagiu, Nadim Y. Abdo, Vladimir K. Stoyanov, Ahmed M. Tolba, Gautam Swaminathan, Srinivasa Reddy Neerudu
  • Publication number: 20100146127
    Abstract: Techniques are disclosed for a user-mode based remote desktop protocol (RDP) encoding architecture. A user mode desktop application and user mode virtual channel application run in user-mode session space. Virtual channel data from the virtual channel application is marshaled and sent to a RDP encoder process in user-mode system space. There it is converted to RDP protocol data units (PDU) and sent to a remote client across a communications network. Graphics data from the desktop application is sent to a display driver in kernel-mode session space and then to a graphics reflector that marshals the graphics data and sends it to the RDP encoder for a similar transformation.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Applicant: Microsoft Corporation
    Inventors: Wilhelm R. Schmieder, Nelamangal Krishnaswamy Srinivas, Costin Hagiu, Nadim Y. Abdo, Vladimir K. Stoyanov, Ahmed M. Tolba, Gautam Swaminathan, Srinivasa Reddy Neerudu
  • Publication number: 20090235358
    Abstract: Various embodiments of the present invention are directed to systems and methods for “attaching” a virtual hard drive to the physical computer hardware by implementing a specialized disk controller driver for the host operating system that is recognized by the host operating system as a disk controller driver but which in fact also emulates the virtual hard disk it is “attached” to. When the host operating system sends requests to read and write sectors from the virtual hard drive, the specialized driver (the “virtual hard drive controller driver”) directly accesses and manipulates the back-end file mentioned above. Thus the virtual disk is “attached” and recognizable by the host operating system and can be manipulated thereby (and applications executing thereon).
    Type: Application
    Filed: May 26, 2009
    Publication date: September 17, 2009
    Applicant: Microsoft Corporation
    Inventor: Ahmed M. Tolba
  • Patent number: 7555596
    Abstract: Various embodiments of the present invention are directed to systems and methods for “attaching” a virtual hard drive to the physical computer hardware by implementing a specialized disk controller driver for the host operating system that is recognized by the host operating system as a disk controller driver but which in fact also emulates the virtual hard disk it is “attached” to. When the host operating system sends requests to read and write sectors from the virtual hard drive, the specialized driver (the “virtual hard drive controller driver”) directly accesses and manipulates the back-end file mentioned above. Thus the virtual disk is “attached” and recognizable by the host operating system and can be manipulated thereby (and applications executing thereon).
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: June 30, 2009
    Assignee: Microsoft Corporation
    Inventor: Ahmed M. Tolba