Patents by Inventor John L. Waring

John L. Waring 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).

  • Rotating D.C. coupled record amplifier for digital magnetic recording
    Patent number: 4561027
    Abstract: A magnetic recording system transmits data edge information and clock signals through a rotary transformer. From the signals derived from secondary side of the transformer the data is reconstructed from the edge information and retimed using the clock signals. A record amplifier is D.C. coupled to a recording head for good pulse response. The amplifier can be a differential one with a pulsed current source for still better pulse edge response.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: December 24, 1985
    Assignee: RCA Corporation
    Inventors: Richard K. Sita, John R. Orr, John L. Waring