Patents by Inventor Sigeto Masuda

Sigeto Masuda 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).

  • AGC apparatus concurrently satisfying sufficient impedance matching characteristic and linear AGC characteristic
    Patent number: 5737033
    Abstract: An inexpensive AGC apparatus capable of concurrently satisfying a sufficient impedance matching characteristic and a linear AGC characteristic is provided. The AGC apparatus is provided with a linear correction circuit. The linear correction circuit corrects a control voltage from a control voltage generator circuit, and outputs a corrected control voltage to a variable gain amplifier circuit. The above-mentioned correction is such a correction that a variation of a decibel value of an AGC gain relative to a variation of the control voltage is linearized.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: April 7, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Sigeto Masuda