Digital closed circuit television system
First Claim
1. A video monitoring system comprising:
- at least one digital video camera creating a digital video stream wherein the or each digital video camera produces a camera signal, at a particular transmission rate, representing at least the digital video stream for transmission over a co-axial cable infrastructure;
an interface enabled to receive the camera signal from the or each digital video camera transmitted over a co-axial cable infrastructure, reconstruct the camera signal back into the digital video stream and send an interface signal to the or each digital video camera; and
a storage medium wherein the or each digital video stream received by the interface can be stored.
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Abstract
A digital closed circuit television system is disclosed enabling high-definition digital video and other information to be transmitted over standard co-axial cable as well as including bi-directional communication. According to one embodiment of the invention there is provided a video monitoring system comprising at least one digital video camera creating a digital video stream wherein the or each digital video camera produces a camera signal, at a particular transmission rate, representing at least the digital video stream for transmission over a co-axial cable infrastructure; an interface enabled to receive the camera signal from the or each digital video camera transmitted over a co-axial cable infrastructure and reconstruct the camera signal back into the digital video stream and send an interface signal to the or each digital video camera; and a storage medium wherein the or each digital video stream received by the interface can be stored.
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Citations
19 Claims
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1. A video monitoring system comprising:
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at least one digital video camera creating a digital video stream wherein the or each digital video camera produces a camera signal, at a particular transmission rate, representing at least the digital video stream for transmission over a co-axial cable infrastructure;
an interface enabled to receive the camera signal from the or each digital video camera transmitted over a co-axial cable infrastructure, reconstruct the camera signal back into the digital video stream and send an interface signal to the or each digital video camera; and
a storage medium wherein the or each digital video stream received by the interface can be stored. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A digital video camera enabled to create a digital video stream wherein the digital video camera produces a camera signal, at a particular transmission rate, representing information from the digital video camera including a digital video stream for transmission over a co-axial cable infrastructure.
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14. A digital video interface enabled to create a digital video stream wherein the digital video interface produces a camera signal, at a particular transmission rate, representing information from a high-resolution camera including a digital video stream for transmission over a co-axial cable infrastructure, enabling the information from the high resolution camera to be converted into a format suitable for transmission as the camera signal.
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15. A digital video recorder comprising an interface enabled to receive a camera signal from a digital video camera or a digital video interface transmitted over a co-axial cable infrastructure, reconstruct the camera signal back into a digital video stream and send an interface signal to a digital video camera or digital video interface;
- and a storage medium wherein the or each digital video stream received by the interface can be stored.
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16. A method of communicating a camera signal and interface signal over a co-axial cable infrastructure, the method comprising:
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instructing, by means of the interface signal, variance of transmission rate of the camera signal;
monitoring the camera signal to detect an error rate for a particular transmission rate;
selecting a transmission rate based on an acceptable error rate; and
instructing, by means of the interface signal, for the camera signal to be transmitted at the selected transmission rate. - View Dependent Claims (17, 18, 19)
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Specification