Seat-based tactile sensation generator

• US 5,669,818 A
• Filed: 03/23/1995
• Issued: 09/23/1997
• Est. Priority Date: 03/23/1995
• Status: Expired due to Term

• Current Assignee: Virtual Reality Feedback Corporation
• Original Assignee: Craig Thorner, Thomas K. Glass
• Inventors: Thorner, Craig, Glass, Thomas K.
• Primary Examiner(s): Harrison, Jessica
• Assistant Examiner(s): Schaaf, James
• Application Number:
  US08/409,327
• Time in Patent Office: 915 Days
• Field of Search: 273/434, 273/460, 273/198 B, 434/114, 340/407.1, 463/30, 463/47
• US Class Current: 463/30
• CPC Class Codes: A63F 13/28 responding to control signals received from the game device for affecting ambient conditions, e.g. for vibrating players' seats, activating scent dispensers or affecting temperature or light controlling the output signals based on the game progress A63F13/50
• CPC Class Codes: A63F 13/285 Generating tactile feedback signals via the game input device, e.g. force feedback
• CPC Class Codes: A63F 2300/1037 being specially adapted for converting control signals received from the game device into a haptic signal, e.g. using force feedback
• CPC Class Codes: A63F 2300/302 specially adapted for receiving control signals not targeted to a display device or game input means, e.g. vibrating driver's seat, scent dispenser
• CPC Class Codes: A63F 2300/8082 Virtual reality
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G09B 9/05 the view from a vehicle being simulated G09B9/052, G09B9/058 take precedence

Abstract

A seat-based tactile sensation generator capable of producing tactile sensation to a video game player corresponding to activity portrayed in a video game. Specifically, in response to signals produced by the video game, a control circuit generator produces control signals for the seat-based tactile sensation generator. The tactile sensation generator contains an array of actuators embedded within a foam seating pad. A specific arrangement of actuators positions the actuators proximate particular portions of a game player'"'"'s body. Each actuator or group of actuators interacts with the player and is individually activated to produce a localized tactile sensation, e.g., an impact or vibration, corresponding to the action portrayed by the video game as it occurs.

Claims

1. In a virtual reality computer system, apparatus for providing, in response to signals generated by said virtual reality computer system, a tactile sensation to a user of said virtual reality computer system, said apparatus comprising:

a flexible pad;

a plurality of actuators, attached to said pad, for selectively generating said tactile sensation; and

a control circuit, coupled to said plurality of actuators, where said control circuit is responsive to an audio signal for generating a control signal to control activation of said plurality of actuators, where said audio signal corresponds to action portrayed on said virtual reality computer system.

2. The apparatus of claim 1, wherein said flexible pad further comprises:

a first portion being substantially rectangular;

a second portion, attached along an edge to said first portion, being substantially rectangular; and

where said first portion interfits with a back portion of a chair and said second portion interfits with a seat portion of a chair.

3. The apparatus of claim 1 wherein said flexible pad is affixed to a stationery seating system.

4. The apparatus of claim 1 wherein said flexible pad is substantially shaped as a motorcycle seat.

5. The apparatus of claim 1 wherein each actuator in said plurality of actuators are imbedded within said flexible pad.

6. The apparatus of claim 1 wherein each actuator in said plurality of actuators is an electric motor having a shaft with an offset weight attached thereto.

7. The apparatus of claim 6 wherein each of said electric motors are enclosed in a housing.

8. The apparatus of claim 7 wherein each of said electric motors is embedded in said flexible pad and a covering material is affixed to a surface of the flexible pad where each of said electric motors are sealed within said flexible pad by said covering material.

9. The apparatus of claim 1 wherein each actuator in said plurality of actuators is independently activated.

10. The apparatus of claim 1 wherein said plurality of actuators are organized into groups and each of said groups are independently activated.

11. The apparatus of claim 1 wherein each of said actuators is a solenoid.

12. The apparatus of claim 2 wherein said first portion contains a first set of actuators and said second portion contains a second set of actuators.

13. The apparatus of claim 12 wherein said first set of actuators is linearly arranged to generate a tactile sensation in the back of said user.

14. The apparatus of claim 12 wherein said second set of said actuators is arranged to generate a tactile sensation in the buttocks and legs of said user.

15. The apparatus of claim 1 wherein said control circuit comprises:

an audio signal processor for processing said audio signal and generating a processed signal; and

a control signal generator, coupled to said audio signal processor, for generating, in response to said processed signal, said control signal.

16. The apparatus of claim 15 wherein said audio signal processor generates said processed signal in response to a frequency, amplitude and rate of change of said audio signal, where said audio signal corresponds to a scene displayed on the virtual reality computer system.

17. The apparatus of claim 16 wherein said audio signal processor further comprises an equalizer for selectively amplifying or attenuating selected frequency bands of said audio signal.

18. The apparatus of claim 17 wherein said audio signal processor further comprises a rectifier for rectifying said audio signal.

19. The apparatus of claim 15 wherein said control signal generator further comprises an oscillator for generating timing signals for said control signal generator.

20. The apparatus of claim 1 wherein said control circuit comprises:

a front end circuit for forming a composite audio signal from a stereophonic audio signal;

a variable gain preamplifier, coupled to said front end circuit, for amplifying said composite audio signal;

an equalizer, coupled to said variable gain preamplifier, for selectively filtering said amplified composite audio signal;

a rectifier, coupled to said equalizer, for rectifying said equalized signal;

a peak hold circuit, coupled to said rectifier, for temporarily holding said rectified signal and for adding a DC bias to said rectified signal to generate a processed signal; and

a control signal generator, coupled to said peak hold circuit, for generating, in response to said processed signal, said control signal.

21. In a virtual reality computer system, apparatus for providing, in response to signals generated by said virtual reality computer system, a tactile sensation to a user of said virtual reality computer system, said apparatus comprising:

a stationary seating system;

a flexible seat cushion affixed to said stationary seating system;

a plurality of actuators, attached to said flexible seat cushion, for selectively generating said tactile sensation; and

a control circuit, coupled to said plurality of actuators, where said control circuit is responsive to an audio signal for generating a control signal to control activation of said plurality of actuators, where said audio signal corresponds to action portrayed on said virtual reality computer system.

22. The apparatus of claim 21, wherein said flexible seat cushion further comprises:

a first portion forming a back portion for said seating system; and

a second portion, attached along an edge to said first portion, forming a seat portion of said seating system.

23. The apparatus of claim 21 wherein said flexible seat cushion is substantially shaped as a motorcycle seat.

24. The apparatus of claim 21 wherein each actuator in said plurality of actuators are imbedded within said flexible seat cushion.

25. The apparatus of claim 21 wherein each actuator in said plurality of actuators is an electric motor having a shaft with an offset weight attached thereto.

26. The apparatus of claim 25 wherein each of said electric motors are enclosed in a housing.

27. The apparatus of claim 26 wherein each of said electric motors is embedded in said flexible seat cushion and a covering material is affixed to a surface of the flexible seat cushion where each of said electric motors are sealed within said flexible seat cushion by said covering material.

28. The apparatus of claim 21 wherein each actuator in said plurality of actuators is independently activated.

29. The apparatus of claim 21 wherein said plurality of actuators are organized into groups and each of said groups are independently activated.

30. The apparatus of claim 21 wherein each of said actuators is a solenoid.

31. The apparatus of claim 22 wherein said first portion contains a first set of actuators and said second portion contains a second set of actuators.

32. The apparatus of claim 31 wherein said first set of actuators is linearly arranged to generate a tactile sensation in the back of said user.

33. The apparatus of claim 31 wherein said second set of said actuators is arranged to generate a tactile sensation in the buttocks and legs of said user.

34. The apparatus of claim 22 further comprising a chest portion containing at least one actuator, said chest portion being supported by a harness that positions the chest portion against the chest of said user.

35. The apparatus of claim 34 wherein said harness is pivotable to a first position where the chest portion is maintained against the chest of said user and a second position where the chest portion is separated from the chest of said user.