JOHN T GRAEF
Engineers in State College, PA

License number
Pennsylvania PE042485E
Category
Engineers
Type
Professional Engineer
Address
Address
State College, PA 16803

Professional information

John Graef Photo 1

Portable Electronic Display Device With Automatic Lockout Of Message Selection Switches To Prevent Tampering With Selected Message

US Patent:
7737912, Jun 15, 2010
Filed:
Feb 9, 2005
Appl. No.:
11/054710
Inventors:
John T. Graef - State College PA, US
Eric Kline - State College PA, US
Philip R. Hall - Ottsville PA, US
Assignee:
Intuitive Control Systems, LLC - State College PA
International Classification:
G09G 5/00
US Classification:
345 11, 345 13, 345901, 40610
Abstract:
A portable electronic display device includes an electronic display surface having at least one display panel that displays a graphical and/or textual message, memory that stores a plurality of the messages, and one or more switches on the device that allow user selection of one of the messages. The device further includes a controller that disables the one or more switches if none of the switches are selected after a predetermined period of time after power is turned on to the display device, or if none of the switches are selected after a predetermined period of time subsequent to the last switch selection occurrence. In this manner, a person is prevented from subsequently changing the message via the one or more switches.


John Graef Photo 2

Collection, Monitoring, Analyzing And Reporting Of Traffic Data Via Vehicle Sensor Devices Placed At Multiple Remote Locations

US Patent:
2013027, Oct 17, 2013
Filed:
Mar 11, 2013
Appl. No.:
13/792359
Inventors:
Jason S. GEIGER - Boulder CO, US
John T. GRAEF - State College PA, US
International Classification:
G08G 1/00
US Classification:
701118, 701117, 701119
Abstract:
Traffic management reports are created from data provided by vehicle sensor devices placed at different fixed locations in a region. Data of vehicles that pass each of the vehicle sensor devices are captured and communicated to a central computer database. At the central computer database, traffic management reports are periodically created from the vehicle data. Each traffic management report incorporates vehicle data from a plurality of vehicles. The vehicle data is for a plurality of previous, non-current times so as to allow for analysis of past vehicle data.


John Graef Photo 3

Collection, Monitoring, Analyzing And Reporting Of Traffic Data Via Vehicle Sensor Devices Placed At Multiple Remote Locations

US Patent:
8417442, Apr 9, 2013
Filed:
Sep 17, 2007
Appl. No.:
11/901357
Inventors:
Christopher S. Johnson - Tyrone PA, US
Jason S. Geiger - Boulder CO, US
John T. Graef - State College PA, US
Assignee:
Intuitive Control Systems, LLC - State College PA
International Classification:
G06G 1/00
US Classification:
701118, 701 327, 701 344, 701414, 701423, 701534, 375130, 375152, 370320, 370335, 370342, 455231, 4553432, 340990, 340991, 342457
Abstract:
Traffic management reports are created by providing vehicle sensor devices at different location in a region. Each device captures data of vehicles that pass the device. The vehicle data is communicated to a central computer database. At the central computer database, a user interface selects one or more criteria from a plurality of criteria for filtering the vehicle data. Traffic management reports are then automatically created from the filtered vehicle data using the selected criteria.