Patents by Inventor Andrew J. Allan

Andrew J. Allan 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: 9583216
    Abstract: A system implementing an MBIST device is disclosed. The system includes an ECC-protected memory and the MBIST device for self-test of the memory. The MBIST device includes a first access port communicatively connected to the memory via a first path, the first path excluding the ECC logic associated with the embedded memory, and a second access port communicatively connected to the memory via a second path, the second path including the ECC logic associated with the memory. The device is configured to test the memory, in a first mode of operation, via the first path and, in a second mode of operation, via the second path. One advantage of such system includes re-using, with little additional die area, of MBIST logic already required for manufacturing test of the product (first mode of operation) for system or application level tests that may be carried out by customers (second mode of operation).
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: February 28, 2017
    Assignee: ANALOG DEVICES, INC.
    Inventors: Eric C. Jones, Andrew J. Allan
  • Publication number: 20160268007
    Abstract: A system implementing an MBIST device is disclosed. The system includes an ECC-protected memory and the MBIST device for self-test of the memory. The MBIST device includes a first access port communicatively connected to the memory via a first path, the first path excluding the ECC logic associated with the embedded memory, and a second access port communicatively connected to the memory via a second path, the second path including the ECC logic associated with the memory. The device is configured to test the memory, in a first mode of operation, via the first path and, in a second mode of operation, via the second path. One advantage of such system includes re-using, with little additional die area, of MBIST logic already required for manufacturing test of the product (first mode of operation) for system or application level tests that may be carried out by customers (second mode of operation).
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Applicant: ANALOG DEVICES, INC.
    Inventors: Eric C. Jones, ANDREW J. ALLAN
  • Patent number: 6226708
    Abstract: A method of writing a plurality of data values to a plurality of non-volatile memory modules connected to a processor includes initiating writing of a first data value to a first non-volatile memory array and delaying processing by the processor for a predetermined time to allow the first data value to be written to the first non-volatile memory array. The method further includes initiating writing of a second data value to a second non-volatile memory array before delaying processing by the processor to allow the processor to delay processing while both the first data value and the second data value are being written.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: May 1, 2001
    Assignee: Texas Instruments Incorporated
    Inventors: Robert F. McGoldrick, Andrew J. Allan