CAMERA SYSTEM
First Claim
1. A method for controlling a camera system, the method comprising:
- receiving video signals from one or more cameras via network, each of the video signals being encoded with one of a plurality of encoding schemes;
providing, to the one or more cameras via network, a first signal if a total bandwidth of the video signals is above a first threshold value; and
providing, to the one or more cameras via network, a second signal if the total bandwidth is below a second threshold value, whereinthe first signal is provided to change an encoding scheme in use to another encoding scheme using lower bit rate; and
the second signal is provided to change an encoding scheme in use to another encoding scheme using higher bit rate.
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Abstract
Each of multiple cameras encodes and transmits a video signal captured, the encoding being performed with one of multiple variable bit rate encoding schemes each of which has a different average bit rate. A receiving device periodically measures the total bandwidth of the video signals received from the multiple cameras, and when the total bandwidth exceeds a first threshold value the receiving device switches the encoding scheme used by the cameras to a scheme having a lower average bit rate. In addition, when the total bandwidth falls below a second threshold value that is equal to or less than the first threshold value, the receiving device switches the encoding scheme used by the cameras to a scheme having a higher average bit rate.
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Citations
7 Claims
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1. A method for controlling a camera system, the method comprising:
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receiving video signals from one or more cameras via network, each of the video signals being encoded with one of a plurality of encoding schemes; providing, to the one or more cameras via network, a first signal if a total bandwidth of the video signals is above a first threshold value; and providing, to the one or more cameras via network, a second signal if the total bandwidth is below a second threshold value, wherein the first signal is provided to change an encoding scheme in use to another encoding scheme using lower bit rate; and the second signal is provided to change an encoding scheme in use to another encoding scheme using higher bit rate. - View Dependent Claims (2, 3, 4, 5)
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6. A camera system comprising:
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one or more cameras each of which encodes, with one of a plurality of encoding schemes, signals captured and sends encoded video signals, wherein the plurality of encoding schemes comprises one or more variable bit rate encoding schemes whose average bit rates are different each other; and a receiving device connected to the one or more cameras via a network, the receiving device comprising; a control unit which provides, to the one or more cameras via network, a first signal if a total bandwidth of the video signals is above a first threshold value; and which provides, to the one or more cameras via network, a second signal if the total bandwidth is below a second threshold value, wherein the first signal is provided to change an encoding scheme in use to another encoding scheme using lower bit rate; and the second signal is provided to change an encoding scheme in use to another encoding scheme using higher bit rate.
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7. A receiving device comprising:
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a control unit which encodes, with one of a plurality of encoding schemes, signals captured and sends encoded video signals, wherein the plurality of encoding schemes comprises one or more variable bit rate encoding schemes whose average bit rates are different each other; which provides, to the one or more cameras via network, a first signal if a total bandwidth of the video signals is above a first threshold value; and which provides, to the one or more cameras via network, a second signal if the total bandwidth is below a second threshold value, wherein the first signal is provided to change an encoding scheme in use to another encoding scheme using lower bit rate; and the second signal is provided to change an encoding scheme in use to another encoding scheme using higher bit rate.
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Specification