Rear camera system for a vehicle with a trailer
DCFirst Claim
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1. An apparatus, comprising:
- a vehicle plug; and
a video control circuit configured to receive a first video signal from a first camera and a second video signal from a second camera, wherein the video control circuit is configured to provide the first video signal or the second video signal in response to a control signal, wherein the control signal is indicative of whether a trailer plug is connected to the vehicle plug, wherein the video control circuit comprises a sense circuit configured to generate the control signal, the sense circuit being configured to determine the trailer plug is connected by monitoring power provided to or by the second camera; and
wherein the vehicle plug is attached to the rear of a vehicle for transmitting power and signals between the vehicle and a trailer, the vehicle plug comprising;
a first end configured to connect to the trailer plug, comprising a power conductor;
one or more video signal conductors configured to receive the second video signal; and
a second end configured to connect to the vehicle, comprising a first conductor configured to transmit the second video signal to the video control circuit disposed in the vehicle, wherein the video control circuit is configured to determine that the vehicle is in reverse and the trailer plug is coupled to the first end, wherein the second video signal is provided to a display when the vehicle is in reverse and the trailer plug is coupled to the first end.
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Abstract
A vehicle plug for transmitting power and signals between a vehicle and a trailer includes a power conductor and one or more video signal conductors. The power conductor is configured to provide power to one or more electrical components of the trailer, the one or more electrical components of the trailer includes one or more video cameras. The one or more video signal conductors are configured to receive video signals from the one or more video cameras of the trailer.
33 Citations
20 Claims
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1. An apparatus, comprising:
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a vehicle plug; and a video control circuit configured to receive a first video signal from a first camera and a second video signal from a second camera, wherein the video control circuit is configured to provide the first video signal or the second video signal in response to a control signal, wherein the control signal is indicative of whether a trailer plug is connected to the vehicle plug, wherein the video control circuit comprises a sense circuit configured to generate the control signal, the sense circuit being configured to determine the trailer plug is connected by monitoring power provided to or by the second camera; and wherein the vehicle plug is attached to the rear of a vehicle for transmitting power and signals between the vehicle and a trailer, the vehicle plug comprising; a first end configured to connect to the trailer plug, comprising a power conductor; one or more video signal conductors configured to receive the second video signal; and a second end configured to connect to the vehicle, comprising a first conductor configured to transmit the second video signal to the video control circuit disposed in the vehicle, wherein the video control circuit is configured to determine that the vehicle is in reverse and the trailer plug is coupled to the first end, wherein the second video signal is provided to a display when the vehicle is in reverse and the trailer plug is coupled to the first end. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising:
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a trailer plug; a video control module for a vehicle, the vehicle being capable of use with a trailer, the vehicle having a backup camera and a display and the trailer having a trailer camera, the video control module comprising a first input for receiving a first video signal from the backup camera, a second input for receiving a second video signal from the trailer camera, and a control input for receiving a video signal enable signal on a video signal enable conductor, and a control circuit for providing the second video signal to the display in response at least in part to the video signal enable signal, wherein the video signal enable signal is provided by a sense circuit configured to sense power usage by the trailer camera through the trailer plug; and wherein the trailer plug is attached to a trailer for transmitting power and signals between the vehicle and the trailer, the trailer plug comprising; a power conductor configured to receive power from the vehicle, wherein the received power is used at least in part for the trailer camera; and one or more video signal conductors configured to transmit the second video signal from the trailer to the vehicle. - View Dependent Claims (9, 10, 11, 12)
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13. A method of using a trailer camera with a vehicle comprising a reverse camera and a display and transmitting power and signals between the vehicle and a trailer, the method comprising:
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creating an electrical connection between the vehicle and the trailer via a vehicle plug attached to a rear portion of the vehicle and a trailer plug attached to the trailer; providing power to one or more electrical components of the trailer through the electrical connection, wherein the one or more electrical components comprise one or more video cameras, the one or video cameras comprising the trailer camera; receiving at least one of a first video signal from the reverse camera and a second video signal from the trailer camera; providing the first video signal to the display when the vehicle is in reverse and a sense signal is not present determining whether the vehicle is in reverse; and providing the second video signal to the display when the vehicle is in reverse and the sense signal is present, wherein the sense signal is provided by a sense circuit configured to monitor power associated with the trailer camera through the trailer plug associated with the trailer camera via the electrical connection. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification