Patents Assigned to SYSTEM DESIGN CORP.
  • Acoustic wave communication system and receiver
    Patent number: 9331792
    Abstract: A receiver of the present invention includes a microphone, an unnecessary signal remover, and an FM detector. The microphone receives a transmission signal generated by frequency modulating a signal in a frequency band that is receivable by the microphone, on the basis of transmission data. The unnecessary signal remover removes unnecessary signal components by processing the received signal from the microphone. The FM detector restores transmission data by performing FM detection of the received signal from which unnecessary signal components were removed by the unnecessary signal remover.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 3, 2016
    Assignees: ADC TECHNOLOGY INC., SYSTEM DESIGN CORP.
    Inventors: Mitsuhiro Iida, Tsutomu Adachi, Tomoyoshi Yokoi, Shigeru Hayashi, Takezumi Kondo, Tatsumi Kuroda, Takeo Nozawa, Hiroshi Maekawa, Kenshi Takenaka, Tsuyoshi Kawanishi, Kenji Mizuno, Hideya Fujimaki
  • ACOUSTIC WAVE COMMUNICATION SYSTEM AND RECEIVER
    Publication number: 20140369169
    Abstract: A receiver of the present invention includes a microphone, an unnecessary signal remover, and an FM detector. The microphone receives a transmission signal generated by frequency modulating a signal in a frequency band that is receivable by the microphone, on the basis of transmission data. The unnecessary signal remover removes unnecessary signal components by processing the received signal from the microphone. The FM detector restores transmission data by performing FM detection of the received signal from which unnecessary signal components were removed by the unnecessary signal remover.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 18, 2014
    Applicants: SYSTEM DESIGN CORP., ADC TECHNOLOGY INC.
    Inventors: Mitsuhiro Iida, Tsutomu Adachi, Tomoyoshi Yokoi, Shigeru Hayashi, Takezumi Kondo, Tatsumi Kuroda, Takeo Nozawa, Hiroshi Maekawa, Kenshi Takenaka, Tsuyoshi Kawanishi, Kenji Mizuno, Hideya Fujimaki
  • Apparatus for electromagnetic radiation of living tissue and the like
    Patent number: 4271848
    Abstract: Apparatus for electromagnetic radiation of living tissue, such as human tissue, or tissue simulating matter, comprises an electromagnetic radiation source having a dynamic frequency range of at least about 5 to 1, and preferably 10 to 1. Electrically connected to the source by a coaxial cable is a broadband applicator adapted for emitting electromagnetic radiation into tissue and the like. Parallel plate type radiation launching portions of the applicator are configured to have a characteristic impedance, throughout the dynamic frequency range, approximately equal to the impedance of specimens to be irradiated, which for human tissue, between 50 MHz-2000 MHz, is approximately 50 ohms. A transition for interconnecting the coaxial cable to the parallel plate launching portion is configured to provide a relatively gradual coaxial to parallel plate transition at constant characteristic impedance throughout the dynamic frequency range.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: June 9, 1981
    Assignee: Bio Systems Design, Corp.
    Inventors: Paul F. Turner, Om P. Gandhi