Patents by Inventor Roland Kadefors

Roland Kadefors 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).

  • Patent number: 5645073
    Abstract: The invention relates to a method and an apparatus for detecting muscular status. The apparatus includes an electrode (7) for taking up analog myoelectric signals, an amplifier (1) which is followed by an A/D converter to which is connected a signal processing unit (3). A signal (4) is connected to the signal processing unit.The analog signals collected by the electrode (7) are converted, after amplification, into binary signals which are analyzed in the signal processing unit (3). This calculates the occurrences of muscle activity below a certain muscle activity level related to an initial muscle activity determined on commencement of the detection. Signals relating to the occurrences of muscle activities below said level are emitted from the signal (4) or stored in a storage device.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: July 8, 1997
    Assignee: Synectics Medical AB
    Inventors: Roland Kadefors, Leif Sandsjo, Tommy Oberg
  • Patent number: 5318039
    Abstract: A method and apparatus for detecting muscular status in which electrodes are connected to the body muscles being investigated for producing analog myoelectric signals which are amplified in an amplifier and fed to an A/D converter connected to a signal processing unit. A signal device is connected to the signal processing unit. The analog signals from the electrodes are converted, after amplification, into binary signals which are frequency-analyzed in the signal processing unit by comparing the appearance and/or position of a frequency spectrum in relation to a predetermined initial position at commencement of the detection. Signals relating to the shift of the frequency spectrum in relation to its initial position are emitted by the signal device or stored in a storage device.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: June 7, 1994
    Assignee: Biolin AB
    Inventors: Roland Kadefors, Leif Sandsjo, Tommy berg