Patents by Inventor William T. Metcalf

William T. Metcalf 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: 4125896
    Abstract: A computing circuit is disclosed for producing a digital representation of the ratio between a reference analog signal and successive analog signals that are successively supplied to a single input of the computing circuit. The computing circuit comprises storage means in which a digital representation of the reference analog signal is retained. For each successive analog signal that is supplied to the input of the computing circuit, a digital output is generated that is commensurate with the values of the supplied successive analog signal and the digital representation of the reference analog signal retained in the storage means. The digital output is displayed in numerical form representing the ratio between the reference analog signal and the successive analog signal.
    Type: Grant
    Filed: June 15, 1977
    Date of Patent: November 14, 1978
    Assignee: Hentschel Instruments, Inc.
    Inventor: William T. Metcalf