Patents by Inventor Wiliiam C. Waldrop

Wiliiam C. Waldrop 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: 20210241813
    Abstract: Memory devices receive a data signal and an accompanying data strobing signal, which informs the device that data is ready for latching. The data strobing signal enables capturing the data while the data signal transitions from a logic high to a logic low or vice versa, resulting in an indeterminate output (e.g., between 0 and 1). The indeterminate value may cause metastability in memory operations using the indeterminate output. To prevent or reduce metastability, a cascaded timing arbiter latch includes cascaded alternating NAND timing arbiters and NOR timing arbiters. In some embodiments, these logic gates are connected to transistors above and below the cascaded timing arbiters. The cascaded timing arbiters and/or transistors provide amplification on a feedback path of the latch. In other embodiments, the cascaded timing arbiters are isolated by inverters and are not connected to transistors. This embodiment reduces capacitive loading on nodes of the internal feedback path.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 5, 2021
    Inventors: Daniel B. Penney, Wiliiam C. Waldrop