Patents by Inventor Hidetomo Ohnishi

Hidetomo Ohnishi 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).

  • Wireless communication device capable of controlling transmission power and transmission power control method therefor and wireless communication system employing the same
    Patent number: 6871078
    Abstract: The present invention provides a method of controlling transmission power including the steps of: increasing transmission power immediately after a data transmission without waiting for a response signal to be received indicating a result of receiving the transmitted data; if the response signal received reveals that the transmitted data has been unsuccessfully received, retransmitting the same data and also holding transmission power applied when the data is retransmitted; if the response signal received reveals that the transmitted data has been successfully received and data previously transmitted has also been successfully received, reducing transmission power for a subsequent data transmission by a predetermined amount; and if the response signal received reveals that the data transmitted has been successfully received and data previously transmitted has been unsuccessfully received, setting transmission power for the subsequent data transmission depending on the transmission power held being applied whe
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: March 22, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryousuke Nishioka, Hidetomo Ohnishi
  • Wireless communication device capable of controlling transmission power and transmission power control method therefor and wireless communication system employing the same
    Publication number: 20010011023
    Abstract: The present invention provides a method of controlling transmission power including the steps of: increasing transmission power immediately after a data transmission without waiting for a response signal to be received indicating a result of receiving the transmitted data; if the response signal received reveals that the transmitted data has been unsuccessfully received, retransmitting the same data and also holding transmission power applied when the data is retransmitted; if the response signal received reveals that the transmitted data has been successfully received and data previously transmitted has also been successfully received, reducing transmission power for a subsequent data transmission by a predetermined amount; and if the response signal received reveals that the data transmitted has been successfully received and data previously transmitted has been unsuccessfully received, setting transmission power for the subsequent data transmission depending on the transmission power held being applied whe
    Type: Application
    Filed: January 30, 2001
    Publication date: August 2, 2001
    Inventors: Ryousuke Nishioka, Hidetomo Ohnishi