Patents by Inventor Rajesh A. Shah

Rajesh A. Shah 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: 20060095624
    Abstract: Provided are a method, system, and article of manufacture, where a determination is made of one of a plurality of processors to disable, where the plurality of processors are processing interrupts from at least one device. An interrupt directed at the determined processor is communicated to at least one other processor of the plurality of processors while receiving the interrupts from the at least one device. The determined processor is disabled.
    Type: Application
    Filed: November 3, 2004
    Publication date: May 4, 2006
    Inventors: Ashok Raj, Rajesh Shah
  • Publication number: 20060053270
    Abstract: A system comprises non-volatile storage, a read only memory (ROM) that contains an executable BIOS and a CPU communicatively coupled to the non-volatile storage and the ROM. The non-volatile storage contains user data, an executable capture application, a first operating system contained within a non-volatile storage partition, and a partition file that contains a second operating system. The partition file is also included with the non-volatile storage partition. The capture application executes under the first operating system and causes the CPU to store at least some user data in said partition file. The system may also include a user input control and, upon activation of the user input control, the CPU loads the second operating system from the partition file and provides the user access to the user data via a viewer application that runs under the second operating system.
    Type: Application
    Filed: September 9, 2004
    Publication date: March 9, 2006
    Inventors: Loren Dunn, Rajesh Shah, Manish Puri
  • Publication number: 20050102682
    Abstract: Provided are a method, system, and program for interfacing with device hardware supporting a plurality of devices. A device interface driver is initialized to represent the device hardware as a virtual bus to an operating system and to represent to the operating system each device supported in the device hardware as a device attached to the virtual bus. The device hardware is initialized and accessed to determine devices supported by the device hardware. One device object is generated for each determined device supported by the device hardware, wherein each generated device object represents the determined device to the operating system. The determined devices are reported to the operating system, wherein the operating system loads a device driver for each of the reported devices supported by the device hardware.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 12, 2005
    Inventors: Rajesh Shah, Anil Keshavamurthy
  • Publication number: 20050005187
    Abstract: A cluster having a host connected thereto via a cluster interconnection fabric where a determination is made as to whether an error condition exists in an I/O controller connected to the host via the cluster interconnection fabric. This is achieved by attempting to communicate with the I/O controller a first predetermined time period after an inquiry by an operating system as to whether or not an I/O controller driver stack should be unloaded. Also, the operating system is commanded to unload the I/O controller driver stack upon a determination that the error condition still exists.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 6, 2005
    Inventor: Rajesh Shah
  • Patent number: 6101600
    Abstract: A method for use in connection with resetting a CPU including requesting a first reset code stored in an inaccessible memory and redirecting the request to a second reset code stored in accessible memory.A computer system including a CPU, a first memory that may become inaccessible, and a CPU reset facilitator configured to respond to a reset request from the CPU to the first memory at a time when it is inaccessible by diverting the CPU to a second memory.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: August 8, 2000
    Assignee: Compaq Computer Corporation
    Inventors: Kenneth W. Arnold, Rajesh A. Shah
  • Patent number: 6052846
    Abstract: A method of providing and maintaining a plurality of clean, sanitary bedspreads for a hostelry having sleeping accommodations for a plurality of guests. The method includes providing a plurality of bedspreads, and each bedspread includes (i) a removable liner having an insulating core and two outer layers where each outer layer is a nonabsorbent, flame retardant material, and (ii) an outer shell having two outer layers defining a pocket therebetween for removably receiving the liner. The outer shell is closed at one end and has a fastener, preferably a zipper that is enclosed and hidden by a zipper fold, along the other three sides.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: April 25, 2000
    Inventors: Kamal C. Patel, Rajesh Shah
  • Patent number: 5847546
    Abstract: A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: December 8, 1998
    Assignee: Packard Bell NEC
    Inventors: Upal Sengupta, Robert R. Turnbull, Rajesh A. Shah, Brian Carl Fritz
  • Patent number: 5838141
    Abstract: A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: November 17, 1998
    Assignee: Packard Bell Nec
    Inventors: Upal Sengupta, Robert R. Turnbull, Rajesh A. Shah, Brian Carl Fritz
  • Patent number: 5629604
    Abstract: A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: May 13, 1997
    Assignee: Zenith Data Systems Corporation
    Inventors: Upal Sengupta, Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz
  • Patent number: 5561361
    Abstract: A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: October 1, 1996
    Assignee: Zenith Data Systems Corporation
    Inventors: Upal Sengupta, Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz
  • Patent number: 5541490
    Abstract: A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The microcontroller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: July 30, 1996
    Assignee: Zenith Data Systems Corporation
    Inventors: Upal Sengupta, Robert R. Turnbull, Rajesh A. Shah, Brian C. Fritz
  • Patent number: 5481899
    Abstract: The edges of a semiconductor die are moved away from the lead frame leads attached to the die by using a pressure differential across the semiconductor die.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: January 9, 1996
    Assignee: Texas Instruments Incorporated
    Inventors: Guy Harris, Duane Callaway, Rajesh Shah
  • Patent number: 5338705
    Abstract: The edges of a semiconductor die are moved away from the lead frame leads attached to the die by using a pressure differential across the semiconductor die.
    Type: Grant
    Filed: September 10, 1992
    Date of Patent: August 16, 1994
    Assignee: Texas Instruments Incorporated
    Inventors: Guy Harris, Duane Callaway, Rajesh Shah