Adapter for trailer lighting control from modulated input signals
First Claim
1. A trailer light adapter that is adapted to supplying signals to operate lights of a towed vehicle from modulated signals of a lighting circuit of a towing vehicle, said adapter comprising:
- at least one input that is adapted to receive a pulse-width modulated signal from the lighting circuit of the towing vehicle and at least one output that is adapted to supply an output signal to operate a light of the towed vehicle;
a decoder that is adapted to decode the pulse-width modulated signal and to provide a decoded signal indicative of a desired state of the light of the towed vehicle, wherein said decoder determines an average voltage of said pulse-width modulated signal to supply the decoded signal; and
a power circuit that is responsive to the decoded signal and is adapted to supply the output signal to operate the light of the towed vehicle.
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Accused Products
Abstract
A trailer light adapter that is adapted to supply signals to operate the lights of a towed vehicle from modulated signals of a lighting circuit of a towing vehicle, includes at least one input that is adapted to receive a modulated signal from the lighting circuit of the towing vehicle and at least one output that is adapted to supply an output signal to operate a light of the towed vehicle. The adapter further includes a decoder that is adapted to decode a modulated signal and to provide a decoded signal indicative of a desired state of the light of the towed vehicle. The adapter further includes a power circuit that is responsive to the decoded signal and is adapted to supply the output signal to operate the light of the towed vehicle. The adapter may be responsive to a variable voltage modulated signal, a pulse-width modulated signal, or the like.
15 Citations
18 Claims
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1. A trailer light adapter that is adapted to supplying signals to operate lights of a towed vehicle from modulated signals of a lighting circuit of a towing vehicle, said adapter comprising:
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at least one input that is adapted to receive a pulse-width modulated signal from the lighting circuit of the towing vehicle and at least one output that is adapted to supply an output signal to operate a light of the towed vehicle; a decoder that is adapted to decode the pulse-width modulated signal and to provide a decoded signal indicative of a desired state of the light of the towed vehicle, wherein said decoder determines an average voltage of said pulse-width modulated signal to supply the decoded signal; and a power circuit that is responsive to the decoded signal and is adapted to supply the output signal to operate the light of the towed vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A trailer light adapter that is adapted to supplying signals to operate lights of a towed vehicle from modulated signals of a lighting circuit of a towing vehicle, said adapter comprising:
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at least one input that is adapted to receive a modulated signal from the lighting circuit of the towing vehicle and at least one output that is adapted to supply an output signal to operate a light of the towed vehicle; a decoder that is adapted to decode the modulated signal and to provide a decoded signal indicative of a desired state of the light of the towed vehicle; and a power circuit that is responsive to the decoded signal and is adapted to supply the output signal to operate the light of the towed vehicle, wherein said output is adapted to be connected with a buffer circuit that is capable of illuminating the light of the towed vehicle and wherein said output signal is adapted to cause said buffer circuit to illuminate the light of the towed vehicle.
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11. A trailer light adapter that is adapted to supplying signals to operate lights of a towed vehicle from modulated signals of a lighting circuit of a towing vehicle, said adapter comprising:
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at least one input that is adapted to receive a modulated signal from the lighting circuit of the towing vehicle and at least one output that is adapted to supply an output signal to operate a light of the towed vehicle; a decoder that is adapted to decode the modulated signal and to provide a decoded signal indicative of a desired state of the light of the towed vehicle; and a power circuit that is responsive to the decoded signal and is adapted to supply the output signal to operate the light of the towed vehicle, wherein said decoder is adapted to supply a first decoded signal when the modulated signal supplied to said at least one input is at a 100 percent duty cycle and to supply a second decoded signal when the modulated signal supplied to said at least one input is at a duty cycle that is less than a 100 percent duty cycle. - View Dependent Claims (12, 13, 14, 15)
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16. A trailer light adapter that is adapted to supplying signals to operate lights of a towed vehicle from modulated signals of a lighting circuit of a towing vehicle, said adapter comprising:
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at least one input that is adapted to receive a modulated signal from the lighting circuit of the towing vehicle and at least one output that is adapted to supply an output signal to operate a light of the towed vehicle; a decoder that is adapted to decode the modulated signal and to provide a decoded signal indicative of a desired state of the light of the towed vehicle; and a power circuit that is responsive to the decoded signal and is adapted to supply the output signal to operate the light of the towed vehicle, wherein said decoder is adapted to supply a first decoded signal when the variable voltage signal supplied to said at least one input is at a high voltage level and to supply a second decoded signal when the variable voltage signal supplied to said at least one input is at a reduced voltage level. - View Dependent Claims (17, 18)
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Specification