Light flashing system

• US 5,894,201 A
• Filed: 11/04/1997
• Issued: 04/13/1999
• Est. Priority Date: 11/04/1997
• Status: Expired due to Term

• Current Assignee: Cheerine Development Limited
• Original Assignee: Cheerine Development Limited
• Inventors: Wong, Wai Kai
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): Philogene, Haissa
• Application Number:
  US08/963,695
• Time in Patent Office: 525 Days
• Field of Search: 315/241 S, 315/323, 315/76, 315/225, 315/224, 362/103, 362/265, 362/800, 362/802, 66/137, 66/136
• US Class Current: 315/241.00S
• CPC Class Codes: H05B 39/09 in which the lamp is fed by pulses automatic circuit devices built into or on the incandescent lamp H01K1/625; vehicle winking devices B60Q1/38
• CPC Class Codes: H05B 47/00 Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources

Abstract

A light flashing system for flashing lights on and off and for generating a pattern of illumination for a plurality of lights in response to intermittent switch closures. The system includes a battery, a plurality of light emitting elements, a plurality of transistors which enable the illumination of the light emitting elements, a switch, a capacitor, and a pattern generation circuit. The battery powers the light emitting elements and the pattern generation circuit. The switch intermittently clocks the pattern generation circuit and enables the flow of current in certain of the transistors, allowing illumination of certain of the light emitting elements in response to changes in inertial forces caused by movement of the flashing light system. The capacitor is connected in parallel to the battery such that the capacitor stores electrical charge when the switch is closed and continues to enable the flow of current through certain of the transistors after the switch is opened. The pattern generation circuit then causes at least one, but not necessarily all, of the plurality of light emitting elements to illuminate by enabling the flow of current through certain of the transistors. As the switch intermittently opens and closes, the pattern generation circuit is clocked through various states, and the outputs of the pattern generation circuit enables the flow of current through certain of the transistors, allowing illumination of at least one, but not necessarily all, of the light emitting elements in a pattern.

Claims

1. A lighting system to be incorporated into footwear comprising:

a power source;

a primary gate electrically connected to the power source;

means for controlling the primary gate, said means for controlling electrically connected to the primary gate and the power source;

a plurality of secondary gates each electronically connected to the primary gate and the power source;

a plurality of light emitting elements each electrically connected to a respective one of the plurality of secondary gates, to the primary gate, and to the power source; and

means for generating a pattern of signals which control the secondary gates, said means for generating electrically connected to the plurality of secondary gates and the power source.

2. The lighting system of claim 1, wherein the means for controlling the primary gate comprises a switch electrically connected to the power source and the primary gate.

3. The lighting system of claim 2, further comprising means for enabling the light emitting elements to illuminate after the switch is opened, said means for enabling being electrically connected in parallel to the power source.

4. The lighting system of claim 3, wherein the means for enabling comprises a capacitor.

5. The lighting system of claim 2, wherein the switch comprises a spring having first and second ends, wherein the first end is fixed to a first contact point which is electrically connected to the power source and the second end is disposed above a second contact point which is electrically connected to the primary gate such that the second end of the spring contacts the second contact point in response to changes in inertial forces applied to the footwear to create an electrical connection between the spring and the second contact point.

6. The lighting system of claim 5, wherein the switch further comprises a mass attached to the second end of the spring to facilitate the connection of the spring and the second contact point.

7. The lighting system of claim 1, wherein the plurality of light emitting elements comprise light emitting diodes.

8. The lighting system of claim 1, wherein the means for generating a pattern of signals comprises an integrated circuit.

9. The lighting system of claim 2, wherein the means for generating a pattern of signals comprises a counter.

10. The lighting system of claim 9, wherein the counter is incremented each time the switch is closed.

11. The lighting system of claim 1, wherein the primary gate and secondary gates comprise transistors.

12. A method of generating a flashing pattern of light illuminations for use with footwear, the method comprising the steps of:

providing a power source;

controlling a primary gate connected to the power source;

providing a plurality of secondary gates each electrically connected to the primary gate and the power source;

providing a plurality of light emitting elements each connected to a respective one of the plurality of secondary gates, to the primary gate and to the power source; and

generating a pattern of signals to control the secondary gates.

13. A lighting system to be incorporated into footwear comprising:

a power source;

a plurality of light emitting elements electrically connected to the power source;

means for illuminating a pattern of at least one, but not all, of the light emitting elements, wherein the pattern of the illuminated light emitting elements is changed only in response to changes in inertial forces on the lighting system, said means for generating electrically connected to the plurality of light emitting elements and the power source.

14. The lighting system of claim 13, wherein the means for illuminating comprises an integrated circuit electrically connected to the power source and a switch connected to the integrated circuit and the power source.

15. The lighting system of claim 14, wherein the switch comprises a spring having first and second ends, wherein the first end is fixed to a first contact point which is electrically connected to the power source and the second end is disposed above a second contact point which is electrically connected to the means for generating a pattern of signals such that the second end of the spring contacts the second contact point in response to changes in inertial forces applied to the footwear to create an electrical connection between the spring and the second contact point.

16. The lighting system of claim 15, wherein the switch further comprises a mass attached to the second end of the spring to facilitate the connection of the spring and the second contact point.

17. The lighting system of claim 13, wherein the plurality of light emitting elements comprise light emitting diodes.

18. Footwear containing a lighting system comprising:

a shoe having a sole;

a power source disposed in the sole of the shoe;

a primary gate electrically connected to the power source and disposed in the sole of the shoe;

means for controlling the primary gate electrically connected to the primary gate and the power source and disposed in the sole of the shoe;

a plurality of secondary gates each electrically connected to the primary gate and the power source and disposed in the sole of the shoe;

a plurality of light emitting elements disposed in the sole of the shoe so that the plurality of light emitting elements are visible external to the shoe, wherein each of the plurality of light emitting elements are electrically connected to a respective one of the plurality of secondary gates, to the primary gate, and to the power source; and

means for generating a pattern of signals which control the secondary gates, said means for generating electrically connected to the secondary gates and the power source and disposed in the sole of the shoe.

19. The footwear of claim 18, wherein the means for controlling the primary gate comprises a switch electrically connected to the power source and the primary gate.

20. The footwear of claim 19, further comprising means for enabling the light emitting elements to illuminate after the switch is opened, said means for enabling being electrically connected in parallel to the power source and disposed in the sole of the shoe.

21. The footwear of claim 20, wherein the means for enabling comprises a capacitor.

22. The footwear of claim 19, wherein the switch comprises a spring having first and second ends, wherein the first end is fixed to a first contact point which is electrically connected to the power source and the second end is disposed above a second contact point which is electrically connected to the primary gate such that the second end of the spring contacts the second contact point in response to changes in inertial forces applied to the footwear to create an electrical connection between the spring and the second contact point.

23. The footwear of claim 22, wherein the switch further comprises a mass attached to the second end of the spring to facilitate the connection of the spring and the second contact point.

24. The footwear of claim 18, wherein the plurality of light emitting elements comprise light emitting diodes.

25. The footwear of claim 18, wherein the means for generating a pattern of signals comprises an integrated circuit which is disposed in the sole of the shoe.

26. The footwear of claim 19, wherein the means for generating a pattern of signals comprises a counter disposed in the sole of the shoe.

27. The footwear of claim 26, wherein the counter is incremented each time the switch is closed.

28. The footwear of claim 18, wherein the primary gate and secondary gates comprise transistors.