Patents by Inventor Daniel Ratchen

Daniel Ratchen 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: 20150310933
    Abstract: In certain embodiment, built-in self-test (BIST) circuitry for multiport memory comprises a configurable address generator and a configurable data generator. The configurable address generator can be configured to concurrently generate first and second logical memory addresses corresponding to physically neighboring first and second memory cells of the multiport memory for any selected memory mode of a plurality of available memory modes having different column-multiplexing schemes. The configurable data generator can be configured to concurrently generate two sets of data for the selected memory mode, such that (i) the first set of data is written into and read from the multiport memory via a first memory port using the first logical memory address and (ii) the second set of data is written into and read from the multiport memory via a second memory port using the second logical memory address. The BIST circuitry enables efficient, physically aware built-in self-testing.
    Type: Application
    Filed: September 10, 2014
    Publication date: October 29, 2015
    Inventors: Naveen Purushotham, Kanad Chakraborty, Daniel Ratchen