Patents by Inventor Anand Sundaram

Anand Sundaram 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).

  • Method and system for secure communication between processor partitions
    Patent number: 8151026
    Abstract: A system and method for writing, by a sender, a message into blocks of a memory space, the memory space being shared by the sender of the message and a receiver of the message, and sending, by the sender, an interrupt corresponding to the message.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: April 3, 2012
    Assignee: Wind River Systems, Inc.
    Inventors: Anand Sundaram, Johan Fornaeus
  • Method and System for Secure Communication Between Processor Partitions
    Publication number: 20100333112
    Abstract: A system and method for writing, by a sender, a message into blocks of a memory space, the memory space being shared by the sender of the message and a receiver of the message, and sending, by the sender, an interrupt corresponding to the message.
    Type: Application
    Filed: August 31, 2010
    Publication date: December 30, 2010
    Inventors: Anand Sundaram, Johan Fornaeus
  • Method and system for secure communication between processor partitions
    Patent number: 7809875
    Abstract: A system and method for writing, by a sender, a message into blocks of a memory space, the memory space being shared by the sender of the message and a receiver of the message, and sending, by the sender, an interrupt corresponding to the message.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 5, 2010
    Assignee: Wind River Systems, Inc.
    Inventors: Anand Sundaram, Johan Fornaeus
  • Method and System for Secure Communication Between Processor Partitions
    Publication number: 20090327552
    Abstract: A system and method for writing, by a sender, a message into blocks of a memory space, the memory space being shared by the sender of the message and a receiver of the message, and sending, by the sender, an interrupt corresponding to the message.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Anand SUNDARAM, Johan Fornaeus
  • Uniprocessor operating system design facilitating fast context switching
    Patent number: 7313797
    Abstract: A task stack and a context pointer in a task control block (TCB) are implemented to provide more efficient context switching. Additionally, multiple routines each of which saves or restores a certain combination of volatile registers is implemented. A task can store in its task control block a routine identifier to select from the multiple routines a set of routines for saving and restoring volatile registers during context switching. On the occurrence of an event that may lead to a context switch a scheduler selects based on the routine identifier a routine that only saves registers used by the task, thereby, reducing execution overhead. The registers are saved on the task stack and a context pointer to the registers is saved in the TCB. In the event a context switch is necessary, it is not necessary to copy the registers to the TCB because the context pointer is in the TCB. A non-volatile register indicator that indicates whether non-volatile registers are used is stored in the task control block.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: December 25, 2007
    Assignee: Wind River Systems, Inc.
    Inventors: Anand Sundaram, Maarten Koning
  • Uniprocessor operating system design facilitating fast context swtiching
    Publication number: 20040055003
    Abstract: A task stack and a context pointer in a task control block (TCB) are implemented to provide more efficient context switching. Additionally, multiple routines each of which saves or restores a certain combination of volatile registers is implemented. A task can store in its task control block a routine identifier to select from the multiple routines a set of routines for saving and restoring volatile registers during context switching. On the occurrence of an event that may lead to a context switch a scheduler selects based on the routine identifier a routine that only saves registers used by the task, thereby, reducing execution overhead. The registers are saved on the task stack and a context pointer to the registers is saved in the TCB. In the event a context switch is necessary, it is not necessary to copy the registers to the TCB because the context pointer is in the TCB. A non-volatile register indicator that indicates whether non-volatile registers are used is stored in the task control block.
    Type: Application
    Filed: September 18, 2002
    Publication date: March 18, 2004
    Inventors: Anand Sundaram, Maarten Koning