Electronic-automatic orientation device for walkers and the blind
Patent 4991126 Issued on February 5, 1991. Estimated Expiration Date: 
November 4, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 4, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3355942 3635399 3710083 3840726 Combination pursuit and compensatory display system Jogger's computational device Electronic pedometer Electronic pace and distance counting shoe Return route indication device for automotive vehicles Apparatus for generating a heading signal for a land vehicle InventorApplicationNo. 286958 filed on 11/04/1988US Classes:702/152, 3D position235/105, PEDOMETERS377/24.2, Distance and Human Activity (e.g., pedometer, nonpowered golf carts)701/300, RELATIVE LOCATION702/153, 3D orientation702/160PedometerExaminersPrimary: Lall, Parshotam S.Assistant: Zanelli, Michael J. Attorney, Agent or FirmForeign Patent References
International ClassG01C 022/00Foreign Application Priority Data1986-05-14 ATAbstractThe automatic orientation device according to the invention for walkers and the blind is a small light weight and easily man-carried instrument. It contains an electronic-digital-calculating for continually determining the vectorial sum of the steps made by converting these steps into electrical pulses proportional to the strides and by automatic determination of the direction by means of a direction emitter in order to calculate the distance and direction covered from the point of departure. Whether by walking, running or horse riding the user is thus provided with optical or acoustic indicating or with perceptible vibrations indicating the distance and direction from the point of departure. In this way any person, including the blind, can find his way to the point of departure without any means of assistance, or geographical map or town plan, and in particular when the visibility is extremely poor. | |
