Patents by Inventor Hannu Antero Pohjanpalo

Hannu Antero Pohjanpalo 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).

  • AUDIO SUBSYSTEM MONITORING MECHANISM FOR PATIENT MONITORS
    Publication number: 20150332584
    Abstract: A patient monitor that includes a system for testing the operation of a speaker included in the patient monitor is disclosed. The control unit of the patient monitor generates a low frequency test signal to the speaker. The speaker generates the test signal at a frequency that is below the normal audible range for a human ear. A current sensing device detects the current draw of the speaker during operation. The current draw is analyzed to determine whether the speaker is operating properly. A backup speaker is used to generate an audible alarm when the speaker is not working properly. A microphone can be included to detect the inaudible test signal.
    Type: Application
    Filed: April 14, 2015
    Publication date: November 19, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jukka Mikael Tenkama, Hannu Antero Pohjanpalo, Miikka Lehikoinen, Mika Rapo, Tomi Markus Makela, Jussi Ilmari Eronen, Juha-Kyosti Hermanni Heleva