Patents by Inventor Stephen Simmonds

Stephen Simmonds 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: 8975954
    Abstract: An integrated circuit (IC) includes an adaptive voltage scaling (AVS) controller configured to control a voltage supplied to a portion of the IC and at least one sensor configured to sense at least one state of the IC and to provide an output signal indicative of the at least one sensed state to the AVS controller, the IC having a first setting and a second setting, the AVS controller being configured to use the output signal to control the voltage in the first setting and the AVS controller being configured to control the voltage independently of the output signal in the second setting. Also a method of performing AVS is provided.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: March 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Madan Krishnappa, Stephen Simmonds, Parag Arun Agashe, Sajjad Pagarkar, Ashwin Rabindranath, Sagar Digwalekar
  • Publication number: 20140191794
    Abstract: An integrated circuit (IC) includes an adaptive voltage scaling (AVS) controller configured to control a voltage supplied to a portion of the IC and at least one sensor configured to sense at least one state of the IC and to provide an output signal indicative of the at least one sensed state to the AVS controller, the IC having a first setting and a second setting, the AVS controller being configured to use the output signal to control the voltage in the first setting and the AVS controller being configured to control the voltage independently of the output signal in the second setting. Also a method of performing AVS is provided.
    Type: Application
    Filed: January 8, 2013
    Publication date: July 10, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Madan Krishnappa, Stephen Simmonds, Parag Arun Agashe, Sajjad Pagarkar, Ashwin Rabindranath, Sagar Digwalekar
  • Publication number: 20030053361
    Abstract: A memory refresh system and method. The inventive system includes a mechanism for selectively refreshing elements of a memory array in response to signals from a conventional memory management system. In the illustrative application, the memory is dynamic random access memory and the inventive system is adapted to provide for selective refresh of those DRAM memory elements to which data has been or will be stored. This allows for the use of advantageous DRAM memory elements while minimizing the power consumption thereof. Consequently, the utility of DRAM memory elements is extended to a variety of power sensitive applications including cellular telephony and mobile computing.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 20, 2003
    Inventors: Haitao Zhang, Stephen Simmonds, Hanfang Pan
  • Patent number: 6407949
    Abstract: The flash and SRAM memory are embedded within an application specific integrated circuit (ASIC) to provide improved access times and also reduce overall power consumption of a mobile telephone employing the ASIC. The flash memory system includes a flash memory array configured to provide a set of individual flash macros and a flash memory controller for accessing the flash macros. The flash memory controller includes a read while writing unit for writing to one of the flash macros while simultaneously reading from another of the flash macros. By permitting read while writing, read operations need not be deferred until completion of pending write operations. The flash memory controller also includes programmable wait state registers. Each wait state register stores a programmable number of flash bus wait states associated with a portion of the flash memory.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: June 18, 2002
    Assignee: Qualcomm, Incorporated
    Inventors: Sanjay Jha, Stephen Simmonds, Jalal Elhusseini, Nicholas K. Yu, Safi Khan
  • Patent number: 6392925
    Abstract: The flash and SRAM memory are embedded within an application specific integrated circuit (ASIC) to provide improved access times and also reduce overall power consumption of a mobile telephone employing the ASIC. The flash memory system includes a flash memory array configured to provide a set of individual flash macros and a flash memory controller for accessing the flash macros. The flash memory controller includes a read while writing unit for writing to one of the flash macros while simultaneously reading from another of the flash macros. By permitting read while writing, read operations need not be deferred until completion of pending write operations. The flash memory controller also includes programmable wait state registers. Each wait state register stores a programmable number of flash bus wait states associated with a portion of the flash memory.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 21, 2002
    Assignee: QualComm, Incorporated
    Inventors: Sanjay Jha, Stephen Simmonds, Jalal Elhusseini, Nicholas K. Yu, Safi Khan
  • Publication number: 20010036109
    Abstract: The flash and SRAM memory are embedded within an application specific integrated circuit (ASIC) to provide improved access times and also reduce overall power consumption of a mobile telephone employing the ASIC. The flash memory system includes a flash memory array configured to provide a set of individual flash macros and a flash memory controller for accessing the flash macros. The flash memory controller includes a read while writing unit for writing to one of the flash macros while simultaneously reading from another of the flash macros. By permitting read while writing, read operations need not be deferred until completion of pending write operations. The flash memory controller also includes programmable wait state registers. Each wait state register stores a programmable number of flash bus wait states associated with a portion of the flash memory.
    Type: Application
    Filed: March 26, 2001
    Publication date: November 1, 2001
    Inventors: Sanjay Jha, Stephen Simmonds, Jalal Elhusseini, Nicholas K. Yu, Safi Khan