Patents by Inventor Johan-Carl Höijer

Johan-Carl Höijer 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).

  • Implantable heart stimulator or which identifies the origin of heart signals
    Patent number: 6954671
    Abstract: An implantable heart stimulator has a heart signal detector adapted to detect electrical heart signals and to apply the detected signals to at least two detection channels. Each detection channel includes a filter, with each filter having a passband that differs from the passband of the other filters. Each channel also includes a threshold detector and a peak amplitude determining unit connected to the output of the filter in that channel. A heart event identifying unit is connected to the outputs of each channel and unambiguously identifies a type of signal which produced a detected heart event by applying predetermined identifying criteria to the outputs of the threshold detector and the peak amplitude determining unit from each channel.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: October 11, 2005
    Assignee: St. Jude Medical AB
    Inventors: Johan-Carl Höijer, Martin Obel