Infrared proximity and remote control wall switch

• US 6,107,938 A
• Filed: 04/04/1998
• Issued: 08/22/2000
• Est. Priority Date: 04/04/1998
• Status: Expired due to Fees

• Current Assignee: Hong Feng Du, Jing Cheng Luo
• Original Assignee: Hong Feng Du, Jing Cheng Luo
• Inventors: Luo, Jing Cheng, Du, Hong Feng
• Primary Examiner(s): Williams, Howard L.
• Assistant Examiner(s): JEANGLAUDE, JEAN BRUNER
• Application Number:
  US09/055,154
• Time in Patent Office: 871 Days
• Field of Search: 340/825.31, 340/825.69, 340/825.72, 340/825.34, 340/825.56, 473/199, 219/445.1, 250/370.15, 700/17, 307/117, 307/125
• US Class Current: 340/12.22
• CPC Class Codes: H03K 17/941 using an optical detector H03K17/968 takes precedence

Abstract

An infrared proximity and remote control wall switch positioned between a fixture and a voltage source for allowing a fixture to operate in one of a manual and automatic mode. The infrared proximity and remote control wall switch includes a three position switch operable between a first on position connecting the fixture directly to the voltage source, a second off position for disconnecting the fixture from the voltage source and a third auto position for allowing automatic operation of the fixture. An infrared emitter generates an infrared signal and an infrared receiver is connected to receive one of the infrared signal generated by the infrared emitter and reflected by an object and an infrared signal generated by a conventional television, video cassette recorder or hi-fi remote control unit. A device is connected to the infrared receiver for filtering the signal received by said infrared receiver and eliminate noise signals therefrom. Connected to the filtering device acts to connect the fixture to the voltage source upon receipt of a filtered signal from the filtering device. This device is able to eliminate noise signals from affecting the operation of the fixture when the switch is in the auto position and is able to activate the fixture to turn on at a plurality of different intensities. A timer may also be included for turning the fixture off after a predetermined period of time has passed since activation.

Claims

1. An infrared proximity and remote control wall switch positioned between a fixture and a voltage source for allowing a fixture to operate in one of a manual and automatic mode, said infrared proximity and remote control wall switch comprising:

a) a three position switch operable between a first on position connecting the fixture directly to the voltage source, a second off position for disconnecting the fixture from the voltage source and a third auto position for allowing automatic operation of the fixture;

b) an infrared emitter for generating an infrared signal;

c) an infrared receiver for receiving one of the infrared signal generated by the infrared emitter reflected by an object and an infrared signal generated by a remote control unit;

d) means connected to said infrared receiver for filtering said signal received by said infrared receiver to eliminate noise signals therefrom, said means for filtering further including a counter and means for generating a reset signal to determine whether the received signal from said infrared receiver meets the minimum limitation of counts, a trigger signal being generated by said counter only when said received signal meets the minimum limitation of counts, and wherein said counter is periodically reset by said reset signal; and

e) means connected to said means for filtering for connecting the fixture to the voltage source upon receipt of said trigger signal from said means for filtering.

2. The infrared proximity and remote control wall switch as recited in claim 1, wherein said means for filtering includes means for amplifying said signal received by said infrared receiver.

3. The infrared proximity and remote control wall switch as recited in claim 1, wherein said means for connecting includes a triac switch activated to conduct by said means for filtering upon receipt of said one of the infrared signal generated by the infrared emitter reflected by an object and an infrared signal generated by a remote control unit received by said infrared receiver.

4. The infrared proximity and remote control wall switch as recited in claim 1, wherein said reset signal is a rectangular wave signal, said counter being active to count during a predetermined cycle of said rectangular wave signal.

5. The infrared proximity and remote control wall switch as recited in claim 4, wherein a period of said reset signal is set by a user of said switch.

6. The infrared proximity and remote control wall switch as recited in claim 1, wherein said means for connecting turns the fixture on at a plurality of intensity levels.

7. The infrared proximity and remote control wall switch as recited in claim 6, wherein said means for connecting includes first and second control circuits for selecting one of said plurality of intensity levels at which the fixture is to be turned on.

8. The infrared proximity and remote control wall switch as recited in claim 6, further comprising a second counter for controlling the intensity level at which the fixture turns on.

9. The infrared proximity and remote control wall switch as recited in claim 1, wherein remote control unit generating an infrared signal is at least one of a conventional television, video cassette recorder and hi-fidelity stereo remote control unit.

10. The infrared proximity and remote control wall switch as recited in claim 9, wherein the remote control unit includes a plurality of buttons for generating the infrared signal, wherein activation of any of said plurality of buttons generates an infrared signal able to be received by said infrared receiver for connecting the fixture to the voltage source.

11. The infrared proximity and remote control wall switch as recited in claim 9, further comprising a microcontroller and the remote control unit includes a plurality of buttons for generating the infrared signal, wherein said microcontroller is programmable to memorize activation of a particular one of the plurality of buttons for connecting the fixture to the voltage source.

12. The infrared proximity and remote control wall switch as recited in claim 11, wherein said microcontroller is reprogrammable to delete the particular one of the plurality of buttons therefrom.

13. The infrared proximity and remote control wall switch as recited in claim 1, wherein receiving one of the infrared signal generated by the infrared emitter and reflected by an object and an infrared signal generated by a remote control unit a first time by said infrared receiver causes said means for controlling to turn the fixture on at a first intensity.

14. The infrared proximity and remote control wall switch as recited in claim 13, wherein receiving one of the infrared signal generated by the infrared emitter and reflected by an object and an infrared signal generated by a remote control unit a second time by said infrared receiver causes said means for controlling to turn the fixture on at a second intensity.

15. The infrared proximity and remote control wall switch as recited in claim 14, wherein receiving one of the infrared signal generated by the infrared emitter and reflected by an object and an infrared signal generated by a remote control unit a third time by said infrared receiver causes said means for controlling to turn the fixture on at a third intensity.

16. The infrared proximity and remote control wall switch as recited in claim 15, wherein receiving one of the infrared signal generated by the infrared emitter and reflected by an object and an infrared signal generated by a remote control unit a fourth time by said infrared receiver causes said means for controlling to turn the fixture off.

17. The infrared proximity and remote control wall switch as recited in claim 15, wherein said means for filtering includes a micro-controller for filtering said infrared signal, eliminating noise accompanying said infrared signal and reshaping said signal to trigger said means for connecting.

18. The infrared proximity and remote control wall switch as recited in claim 17, further comprising a timer connected to said means for connecting for controlling said means for connecting to connect the fixture to the voltage source at a predetermined time and disconnect the fixture from the voltage source after a predetermined period of time when said three position switch is in said auto position.