Monitoring system
First Claim
1. A system for monitoring video signals captured in an internal video network, the system having a transmitter and a receiver stage:
- the transmitter stage comprising;
a) an input stage for receiving a plurality of video signals;
b) video mosaic generation means for generating a mosaic video image comprising the plurality of video signals received at the input stage, wherein each signal in the mosaic video image has a picture size smaller than that of a full screen picture; and
c) an antenna arranged to transmit the mosaic video signal only; and
the receiver stage comprising;
a) a receiver for receiving the transmitted mosaic video signal;
b) received video enlarging means for magnifying a portion of the mosaic video image corresponding to a selected video signal; and
c) a screen for displaying either the mosaic video image or the magnified portion of the mosaic video image corresponding to a selected video signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for monitoring a plurality of video signals in an internal video network, such as a broadcast recording environment, or security camera network, is described. The system comprises a picture monitor 2 having a screen 6 on which a mosaic video image containing the video signals from a plurality of cameras 28 or other video devices is displayed. Selection of a video signal from the mosaic image can be performed to display a full screen version of that signal.
Preferably, at the transmission stage 20 of the network, only the mosaic video image is transmitted. By not transmitting the individual video signals separately, a large saving can be made on the band width required for the transmission as well as on the cost of the encoding components at the transmitter.
71 Citations
27 Claims
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1. A system for monitoring video signals captured in an internal video network, the system having a transmitter and a receiver stage:
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the transmitter stage comprising;
a) an input stage for receiving a plurality of video signals;
b) video mosaic generation means for generating a mosaic video image comprising the plurality of video signals received at the input stage, wherein each signal in the mosaic video image has a picture size smaller than that of a full screen picture; and
c) an antenna arranged to transmit the mosaic video signal only; and
the receiver stage comprising;
a) a receiver for receiving the transmitted mosaic video signal;
b) received video enlarging means for magnifying a portion of the mosaic video image corresponding to a selected video signal; and
c) a screen for displaying either the mosaic video image or the magnified portion of the mosaic video image corresponding to a selected video signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for monitoring video signals captured in an internal video network, comprising:
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an input stage arranged to receive a plurality of video signals from a plurality of video cameras;
an antenna arranged to transmit the video signals over an internal network; and
a portable, hand-held receiver having a screen, the receiver being arranged to receive the transmitted video signals and display the signals on the screen. - View Dependent Claims (22)
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23. A system for transmitting multiple video broadcast signals, having a transmitter and a receiver stage:
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the transmitter stage comprising;
a) an input stage for receiving a plurality of video signals;
b) down-converting means for down-converting a video signal to a smaller picture size substantially preserving the aspect ratio of the original picture;
c) a video mosaic generator for generating a mosaic video image comprising the plurality of video signals down-converted by the down-converting means, the mosaic video image generated having a full screen picture size; and
d) an antenna arranged to transmit the mosaic video signal only; and
the receiver stage comprising;
a) a receiver for receiving the transmitted mosaic video signal;
b) received video enlarging means for magnifying a portion of the mosaic video image corresponding to a selected video signal; and
c) a screen for displaying either the mosaic video image or the magnified portion of the mosaic video image corresponding to a selected video signal.
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24. A method of monitoring video signals captured in an internal video network, the method comprising at a transmission side:
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a) receiving a plurality of video signals;
b) generating a mosaic video image comprising the plurality of received video signals, wherein each signal in the mosaic video image has a picture size smaller than that of a full screen picture; and
c) transmitting only the mosaic video signal;
the method comprising at a reception side;
a) receiving the transmitted mosaic video signal;
b) magnifying a portion of the mosaic video image corresponding to a selected video signal; and
c) displaying either the mosaic video image or the magnified portion of the mosaic video image corresponding to a selected video signal.
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25. A method for transmitting multiple video broadcast signals, the method comprising:
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a) receiving a plurality of video signals;
b) down-converting the plurality of video signals to a smaller picture size substantially preserving the aspect ratio of the original pictures;
c) generating a mosaic video image comprising the plurality of video signals down-converted by the down-converting means, the mosaic video image generated having a full screen picture size; and
d) transmitting only the mosaic video signal;
e) receiving the transmitted mosaic video signal;
f) magnifying a portion of the mosaic video image corresponding to a selected video signal; and
g) displaying either the mosaic video image or the magnified portion of the mosaic video image corresponding to a selected video signal.
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26. A transmitter for transmitting multiple video broadcast signals, the transmitter comprising:
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a) an input stage for receiving a plurality of video signals;
b) down-converting means for down-converting a video signal to a smaller picture size substantially preserving the aspect ratio of the original picture;
c) a video mosaic generator for generating a mosaic video image comprising the plurality of video signals down-converted by the down-converting means, the mosaic video image generated having a full screen picture size; and
d) an antenna arranged to transmit the mosaic video signal only.
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27. A receiver, for use in a transmission scheme in which a mosaic video image, comprising a plurality of individual video signals, is transmitted, the receiver comprising:
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a) a receiver for receiving the transmitted mosaic video signal;
b) received video enlarging means for magnifying a portion of the mosaic video image corresponding to a selected video signal; and
c) a screen for displaying either the mosaic video image or the magnified portion of the mosaic video image corresponding to a selected video signal.
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Specification