Discrete inertial display navigation

• US 20070061077A1
• Filed: 09/09/2005
• Published: 03/15/2007
• Est. Priority Date: 09/09/2005
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Rembrandt Technologies, LP (Rembrandt IP Management, LLC)
• Inventors: Fateh, Sina
• Granted Patent: US 7,647,175 B2
• Time in Patent Office: Days
• US Class Current: 701/220
• CPC Class Codes: G01C 21/166 Mechanical, construction or arrangement details of inertial navigation systems

Abstract

A system and method for calculating velocity vectors from accelerations by establishing a predetermined acceleration threshold, and attributing a predetermined velocity vector to accelerations that cross the predetermined threshold. Preferably, the system and method are used in conjunction with hand-held displays.

Claims

1. A threshold navigation system wherein:

one or more sensors measures movement of a device;

said one or more sensors registering movement only when a threshold level of acceleration is reached;

said registering of movement then being translated into a movement vector;

said movement vector being used to change contents of a display screen in a manner related to said movement vector.

2. A threshold navigation system as in claim 1, wherein said movement vectors can be simultaneously produced in a multitude of directions, wherein a cumulative effect is produced on said display screen.

3. A threshold navigation system as in claim 1, wherein a multitude of said threshold levels can be crossed having a same net direction, wherein a multitude of said movement vectors are produced.

4. A threshold navigation system as in claim 2, wherein a multitude of said threshold levels can be crossed in the same net direction, wherein a multitude of said movement vectors are produced.

5. A threshold navigation system as in claim 1, wherein a second movement in a direction substantially opposite of said movement is translated into a stop vector, wherein said stop vector stops said movement vector.

6. A threshold navigation system as in claim 1, wherein a stop control on said system stops said movement vector.

7. A system for converting real movement into a movement vector comprising:

a device capable of being moved; and

said device containing one or more sensors capable of sensing an acceleration of said device when said device is moved;

wherein said sensors produce said movement vector related to said acceleration of said device only when said acceleration is above a threshold level, said movement vector being at a predetermined level;

wherein acceleration below said threshold level does not produce a movement vector.

8. A system for converting real movement into a movement vector as in claim 7, wherein a plurality of said sensors are used to sense said acceleration, and a total acceleration measurement is averaged between said sensors before comparing said acceleration to said threshold level.

9. A system for converting real movement into a movement vector as in claim 7, wherein a second threshold level produces a second movement vector.

10. A system for converting real movement into a movement vector as in claim 8, wherein said first threshold level does not produce said movement vector when said second threshold level produces said second movement vector.

11. A system for converting real movement into a movement vector as in claim 8, wherein said first threshold level will only produce a movement vector once.

12. A system for converting real movement into a movement vector as in claim 8, wherein said second movement vector is a negative movement vector as compared to said movement vector.

13. A system for converting real movement into a movement vector as in claim 7, wherein a plurality of said threshold levels are used to produce a plurality of said movement vectors.

14. A system for convention real movement into a movement vector as in claim 13, wherein only a greatest of said threshold levels crossed produces said movement vector.

15. A system for converting real movement into a movement vector as in claim 13, wherein a stop vector is created when said threshold level is crossed said movement vector is produced;

said stop vector being assigned an activation acceleration opposite to the direction of acceleration that created said movement vector, wherein said stop vector stops said movement vector;

said threshold for said stop vector being approximately equal to or less than said threshold level for said movement vector;

wherein said stop vector is produced for each said movement vector produced and wherein said stop vector is reset when said stop movement vector is stopped.

16. A system for converting real movement into a movement vector as in claim 7, wherein a stop vector is created when said threshold level is crossed said movement vector is produced;

said stop vector being assigned an activation acceleration opposite to the direction of acceleration that created said movement vector, wherein said stop vector stops said movement vector;

said threshold for said stop vector being approximately equal to or less than said threshold level for said movement vector;

wherein said stop vector is produced for each said movement vector produced and wherein said stop vector is reset when said stop movement vector is stopped.

17. A system for converting real movement into a movement vector as in claim 16, wherein said stop vector acts as a stop for all movement vectors activated in a direction opposite that of said stop vector.

18. A system for converting real movement into a movement vector as in claim 16, wherein said stop vector can be produced by an override command to said device or sensors.

19. A system for converting real movement into a movement vector as in claim 16, wherein said stop vector has a multiple threshold levels, wherein a threshold level corresponds to one or more of said movement vectors.

20. A system for converting real movement into a movement vector as in claim 19, wherein a maximum threshold of the multiple threshold levels produces a new movement vector in the opposite direction of said movement vector.

21. A system for converting real movement into a movement vector as in claim 7, wherein said movement vectors produce at least one effect on a display screen, said at least one effect being a movement simulating function.

22. A system for converting real movement into a movement vector as in claim 21, wherein said movement vector is also translated into an icon and displayed on said display screen.

23. A threshold navigation system wherein:

one or more sensors measures movement of a device;

said one or more sensors registering movement only when a threshold level of acceleration is reached;

said registering of movement then being translated into a movement vector;

said movement vector being used to change contents of a display screen in a manner related to said movement vector;

wherein said device is at least one of hand held and worn by a user.

24. A threshold navigation system as in claim 23, wherein said movement vector produces a change on said display screen only when said device is moved within natural confines of human movement.

25. A threshold navigation system as in claim 24, wherein said threshold level is set according to natural tendencies of human movement.

26. A threshold navigation system as in claim 24, wherein, said natural confines are customized to said user.

27. A threshold navigation system as in claim 23, wherein, a natural arc produced by natural movement of human anatomy is calibrated to be translated as a straight movement.

28. A threshold navigation system as in claim 23, wherein, a toggle function stops said movement vector being used to change contents of a display screen