Patents by Inventor Nobuhiro Sakima

Nobuhiro Sakima 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).

  • Automatic gain control and wireless communication device
    Patent number: 7065164
    Abstract: A wireless communication apparatus includes an antenna receiving a radio signal, a variable gain amplifier amplifying the received signal using a variable gain, an analog-to-digital converter converting the amplified signal into a digital signal, a gain setting unit periodically updating the gain of the variable gain amplifier in accordance with an output from the analog-to-digital converter, and an operating mode selection unit selecting one of a plurality of operating modes characterized by different gain updating periods in accordance with the output from the analog-to-digital converter, the selected operating mode being set in the gain setting unit. With this construction, the precision in conversion by the analog-to-digital converter is maintained at a proper level when an environment for signal reception varies.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: June 20, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Nobuhiro Sakima