Patents by Inventor Lauri Ruohonen

Lauri Ruohonen 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).

  • System for detecting incorrectly functioning sensors in a visitor counting system
    Patent number: 8648908
    Abstract: In a visitor counting system a plurality of sensors (107, 108, 109, 110) count the number of visitors passing by. A data-recording device (105, 106) connected to the sensors store records comprising the number of visitors counted within a predetermined time period. A remote visitor data processing unit (120) further comprises a record validation block for checking validity of the records, an interpolation block for creating new records to substitute the incorrect records, and a faulty-sensor detection block for concluding, based on the records, whether a sensor is faulty.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: February 11, 2014
    Assignee: Teknovisio OY
    Inventors: Juha Ruohonen, Lauri Ruohonen
  • System for Detecting Incorrectly Functioning Sensors in a Visitor Counting System
    Publication number: 20080239073
    Abstract: In a visitor counting system a plurality of sensors (107, 108, 109, 110) count the number of visitors passing by. A data-recording device (105, 106) connected to the sensors store records comprising the number of visitors counted within a predetermined time period. A remote visitor data processing unit (120) further comprises a record validation block for checking validity of the records, an interpolation block for creating new records to substitute the incorrect records, and a faulty-sensor detection block for concluding, based on the records, whether a sensor is faulty.
    Type: Application
    Filed: April 10, 2006
    Publication date: October 2, 2008
    Applicant: TEKNOVISIO OY
    Inventors: Juha Ruohonen, Lauri Ruohonen