IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0179062
(2005-07-11)
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등록번호 |
US-7850327
(2011-02-10)
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발명자
/ 주소 |
- Campbell, Kurt
- Boone, Mike
- Medley, Mark
- Slovacek, Karel
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출원인 / 주소 |
- Enchanted Lighting Company, LLC
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대리인 / 주소 |
Blakely, Sokoloff, Taylor & Zafman LLP
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인용정보 |
피인용 횟수 :
3 인용 특허 :
69 |
초록
▼
According to one embodiment of the invention, a method comprises receiving a time-varying power waveform. The power waveform may be periodic and/or phase-controlled. Compressed within a power range associated with the time-varying power waveform, a pulse width modulated (PWM) signal is produced, whi
According to one embodiment of the invention, a method comprises receiving a time-varying power waveform. The power waveform may be periodic and/or phase-controlled. Compressed within a power range associated with the time-varying power waveform, a pulse width modulated (PWM) signal is produced, which is supplied to a light source in order to produce a lighting effect emulating lighting from a candle flame.
대표청구항
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What is claimed is: 1. A method comprising: receiving a time-varying power waveform; and outputting a pulse width modulated (PWM) signal to a light source in order to produce a lighting effect emulating lighting from a candle flame, the PWM signal being synchronized with the time-varying power wave
What is claimed is: 1. A method comprising: receiving a time-varying power waveform; and outputting a pulse width modulated (PWM) signal to a light source in order to produce a lighting effect emulating lighting from a candle flame, the PWM signal being synchronized with the time-varying power waveform, the outputting of the PWM signal comprises producing a control signal based on the time-varying power waveform, and producing the PWM signal based on the control signal, the PWM signal activates and deactivates components of a driver logic in order to control the light source into producing the lighting effect. 2. The method of claim 1, wherein the outputting of the PWM signal further comprises producing a clock signal based on the control signal and producing the PWM signal based on the clock signal. 3. The method of claim 1, wherein the PWM signal is altered based on a signal output from a dimmer switch. 4. The method of claim 1, wherein the PWM signal is synchronized and compressed within the time-varying power waveform. 5. The method of claim 1, wherein the producing of the clock signal includes modulating a frequency of the clock signal by the control signal. 6. The method of claim 1, wherein the producing of the clock signal includes modulating a frequency of the clock signal by the input power waveform. 7. The method of claim 6, wherein the PWM signal based on the clock signal is produced by a candle emulation control logic being an application specific integrated circuit (ASIC). 8. The method of claim 1, wherein the outputting of the PWM signal further comprises: producing regulated power by power regulation and conditioning logic, the regulated power being supplied to a clock source adapted to produce the clock signal, a candle emulation control logic adapted to produce the PWM signal, and the driver logic. 9. The method of claim 8, wherein the outputting of the PWM signal further comprises: producing unregulated power by the power regulation and conditioning logic, the unregulated power being the supplied to the light source. 10. A method comprising: receiving a time-varying power waveform; and outputting a pulse width modulated (PWM) signal to a light source in order to produce a lighting effect emulating lighting from a candle flame, the PWM signal being synchronized with the time-varying power waveform, wherein the outputting of the PWM signal comprises: producing timing information based on the time-varying power waveform, producing values that are used to identify a particular amount of power applied to the light source based on a constant frequency clock signal, and producing the PWM signal based on the values and the timing information. 11. The method of claim 10 further comprising: using the PWM signal to control components of driver logic that controls activation of the light source. 12. A method comprising: receiving a time-varying power waveform; and outputting a pulse width modulated (PWM) signal to a light source in order to produce a lighting effect emulating lighting from a candle flame, the PWM signal being synchronized with the time-varying power waveform, the outputting of the PWM signal comprises: producing a first waveform being a high frequency clock signal that is synchronized to the time-varying power waveform, producing a second waveform including values to identify a particular amount of power applied to the light source, and producing output PWM signals forming the PWM signal, the output PWM signals are equal in width and change based on modifications of values within second waveform. 13. A candle emulation device comprising: a light source; and a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is used to control the light source in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises: power regulation and conditioning logic to provide regulated, local power from unregulated input power, candle emulation control logic coupled to the power regulation and conditioning logic, the candle emulation control logic to produce a sequence of signals to create the lighting effect, and driver logic coupled to the power regulation and conditioning logic and the candle emulation logic, the driver logic to control the light source based on the sequence of signals supplied by the candle emulation control logic. 14. The candle emulation device of claim 13, wherein the light source controller is adapted to place the light source into a first mode where the lighting effect emulates lighting from a candle flame and a second mode where the light source has substantially constant illumination. 15. The candle emulation device of claim 13 further comprising a power source at least coupled to the light source controller to supply the unregulated input power. 16. The candle emulation device of claim 13, wherein the driver logic to activate or deactivate different filament segments of the light source. 17. The candle emulation device of claim 13, wherein the light source comprises: a bulb housing including a translucent material surrounding a plurality of filament segments, the bulb housing includes a first closed end and a second open end including an elongated protrusion formed proximate to a perimeter of the second open end to create a channel; a plurality of feedthroughs coupled to the plurality of filament segments and extending through the second open end of the bulb housing; and a base interlocking with the channel of the bulb housing and being coupled to the light source controller, the base including a first plurality of grooves alternatively positioned on a top and bottom surfaces of the base to expose multiple locations of surface area of the plurality of feedthroughs. 18. The candle emulation device of claim 13 being a chandelier with the light source controller positioned within a frame of the chandelier and producing the PWM signal to control multiple light sources each producing a lighting effect that emulates lighting from the candle flame. 19. The candle emulation device of claim 13, wherein the time-varying power waveform being an output from a dimmer switch external to the candle emulation device. 20. A candle emulation device comprising: a light source; and a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is synchronized with the time-varying power waveform in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises: a power regulation and conditioning logic to produce a control signal based on the time-varying power waveform, a power signal modulated clock coupled to the power regulation and conditioning logic, the power signal modulated clock to produce a clock signal based on the control signal, a driver logic to electrically coupled to the light source, and a candle emulation control logic coupled to the power signal modulated clock and the driver logic, the candle emulation control logic to produce the PWM signal based on the clock signal, the PWM signal activates and deactivates components of the driver logic in order to control the light source into producing the lighting effect. 21. The candle emulation device of claim 20, wherein the light source controller to receive the time-varying power waveform from a dimmer switch external to the candle emulation device. 22. A candle emulation device comprising: a light source; and a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is synchronized with the time-varying power waveform in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises: a power regulation and conditioning logic to produce a timing information based on the time-varying power waveform, a clock to produce a clock signal with a fixed clock frequency, a driver logic to electrically coupled to the light source, a candle emulation control logic coupled to the clock and the driver logic, the candle emulation control logic to producing values that are used to identify a particular amount of power applied to the light source based on the clock signal, and a power signal compensation logic coupled to the power regulation and conditioning logic and the candle emulation control logic, the power signal compensation logic to produce the PWM signal based on the values and the timing information. 23. The candle emulation device of claim 22, wherein the light source controller to receive the time-varying power waveform from a dimmer switch external to the candle emulation device. 24. A candle emulation device comprising: a light source; and a light source controller coupled to the light source, the light source controller to receive a time-varying power waveform and to produce a pulse width modulated (PWM) signal that is synchronized with the time-varying power waveform in order to produce a lighting effect that emulates lighting from a candle flame, the light source controller comprises: a driver logic to electrically coupled to the light source, and a candle emulation control logic coupled to the driver logic, the candle emulation control logic to produce output PWM signals forming the PWM signal, the output PWM signals are substantially equal in width for each power half-cycle and are used to control the light source to produce the lighting effect. 25. The candle emulation device of claim 24, wherein the light source controller to receive the time-varying power waveform from a dimmer switch external to the candle emulation device.
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