Patents by Inventor Srinivasan Venkata Chari

Srinivasan Venkata Chari 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).

  • Recording system having coinciding servo and data tracks
    Patent number: 3956769
    Abstract: Magnetic recording apparatus employing a medium characterized by having a relatively high coercivity recording layer having servo tracks recorded therein, and a second layer of lower coercivity in which data may be recorded. The servo tracks are read by a head and this signal is used to properly position the head for writing and reading of data. If the medium is a disc, e.g. the servo tracks may be either concentric circles or a single spiral concentric with the center of the disc.
    Type: Grant
    Filed: August 12, 1974
    Date of Patent: May 11, 1976
    Assignee: Control Data Corporation
    Inventors: Harold James Beecroft, Srinivasan Venkata Chari