Real motion detection sampling and recording for writing instruments and small tracking instruments using electrically active material with viscosity

• US 20050001823A1
• Filed: 04/01/2004
• Published: 01/06/2005
• Est. Priority Date: 06/04/2003
• Status: Abandoned Application

• Current Assignee: David Bogart Dort
• Original Assignee: David Bogart Dort
• Inventors: Dort, David Bogart
• Application Number:
  US10/816,531
• Publication Number:
  US 20050001823A1
• Time in Patent Office: Days
• US Class Current: 345/179
• CPC Class Codes: G01C 9/20 the indication being based on the inclination of the surface of a liquid relative to its container
• CPC Class Codes: G06F 3/03545 Pens or stylus

Abstract

The present invention details a system for tracking writing motions internally to the pen (or other instrument) and communicating such motions to a general or specific purposes computer systems. In a preferred embodiment the present invention uses multiple tubes with electrically active material with viscosity surfaces in order to generate the necessary signals to determine the motion of the device in a targeted number of degrees. The data is then filtered and optionally processed and stored. The data then can be downloaded to a computer or other processing device to determine the motion of the pen or other tracking device.

Claims

1. A system for digitally recording the motion of an instrument including:

a power source;

at least two hollow tubes made of electricially conductive material coupled to said power source through first connection, said at least two hollow tubes including a viscous material in the interior contacting said electrically conductive material, wherein when said at least one of said at least hollow tubes moves in an axial or rotational direction, said viscous material contacting said electrical conductive material;

a power sink coupled with said at least two electrically conductive hollow tubes through a second connection.

2. The system as recited in claim 1, further including a transistor coupled in between said at least two hollow tubes and said second connection.

3. The system as recited in claim 2, wherein said transistor does not provide an electrical signal to said power sink unless the power reaches a voltage indicative of at least a detecton threshold.

4. The system as recited in claim 2, wherein said transistor does not provide an electrical signal to said power sink unless the power reaches a power indicative of at least a detecton threshold.

5. The system as recited in claim 1, wherein said power source is pulsed.

6. The system as recited in claim 5, wherein said pulsed power source is pulsed at less than 1 millisecond.

7. The system as recited in claim 1, wherein there are four of said hollow tubes.

8. The system as recited in claim 1, wherein there is a hollow tube for each axial directions, and at least two rotational directions.

9. The system as recited in claim 8, wherein said at least two rotational directions incidude tilt from a vertical upright position (theta) and clock position (alpha).

10. The system as recited in claim 1, wherein said sink is coupled with electronic storage.

11. The system as recited in claim 10, wherein said electronic storage stores data

12. The system as recited in claim 1, wherein said hollow tubes are

13. The system as recited in claim 1, wherein said hollow tubes are substantially cylindrical.

14. A system for tracking the motion of a writing instrument including:

a clock controlling a power source;

a series of virtual resistors coupled with said power source, each virtual resistor including a detection tube with a electrically active varying material, wherein the resistance of said of each virtual resistor is dependent upon the configuration of said electrically actice varying material, said material varying with motion of said writing instrument;

a power sink; and

a signal processor.

15. The system as recited in claim 14 further including a filter for at least one of said resistors.

16. The system as recited in claim 15, whereing there are at least 4 said virtual resistors corresponding to at least two axial directions and at least two rotational directions.