Patents by Inventor Yasuhiko Nezu

Yasuhiko Nezu 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).

  • Apparatus for and method of improving the AFC of a television broadcast satellite receiver
    Patent number: 5014350
    Abstract: A BS tuner (16a, 16b, 16c, 16d) comprises an AFC down-converter (80, 80a). The down-converter (80, 80a) comprises an oscillator (84, 85) and a mixer (86). The AFC down-converter (80, 80a) mixes a second IF signal with an oscillation signal output from the oscillator (84, 85). Consequently, a third IF signal having a frequency lower than the frequency of the second IF signal is obtained. At the time of receiving a MUSE signal, a counter circuit (46) counts the third IF signal. The frequency of the second IF signal is adjusted based on the result of counting by the counter circuit (46).
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: May 7, 1991
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Yasuhiko Nezu