Patents by Inventor Hideaki Ohmori

Hideaki Ohmori 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).

  • Diversity radio receiver
    Patent number: 5448602
    Abstract: A plurality of reception branches receive digital modulated signals and convert received digital modulated signals into intermediate frequency signals having frequency differences having a predetermined relationship with a modulation baseband signal. An adder adds the intermediate frequency signals converted by the plurality of reception branches. A delayed and differential detection section delays and differentially detects a sum signal from the adder. A post detection filter filters a delayed and differentially detected signal from the delayed and differential detection section at a bandwidth higher than a Nyquist frequency of the received digital modulated signals, thereby outputting demodulated signals of the received digital modulated signals.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: September 5, 1995
    Assignee: Small Power Communication Systems Research Laboratories Co., Ltd.
    Inventors: Hideaki Ohmori, Zenichirou Nagasawa