US 2008/0174662 A1Published application

System and method for digital type wireless monitoring

OwnerWon-Gue Choi, Jung-Kun Choinventors

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Abstract

A digital type wireless monitoring system includes transmitters having cameras associated therewith; and a receiver displaying image signals on a screen, the image signals being captured with the cameras at the transmitters and received wirelessly while being installed within a specified distance from the transmitters. Each transmitter performs an MPEG-4 encoding, which compresses only the image signals while excluding audio signals; and creates a file by combining a header containing information of each transmitter and communication standard with each of the image signals for each frame. Further, the receiver having a permanent IP address receives the files received by an AP; receives the files containing header information via the AP; streaming replays images of many channels simultaneously or images of a single channel by using a streaming viewer; stores the image signals of each transmitter being streaming replayed to a designated storage space under the control of a supervisor.

Claims11

Dependent claims

A digital type wireless monitoring system comprising:

transmitters having cameras associated therewith;
and,
a receiver displaying image signals on a screen, the image signals being captured with the cameras at the transmitters and received wirelessly while being installed within a specified distance from the transmitters, and in which:
each transmitter performs an MPEG-4 encoding, for each frame, of the image signals captured by the cameras by using an MPEG-4 codec;
performs again the MPEG-4 encoding of each of the MPEG-4 encoded image signals by each frame with an encoder, which compresses only the image signals while excluding audio signals;
and creates a file by combining a header containing information of each transmitter and communication standard with each of the image signals for each frame, the image signals being encoded twice as discussed above;
an AP receives files containing a header information simultaneously from the transmitters by each frame via different channels;
and,
the receiver having a permanent IP address receives the files received by the AP by using a time division method via the AP;
receives files containing header information by each frame captured from a plurality of the transmitters via the AP;
after decoding respective files by specifying each transmitter based on the information contained in the header of each of the file received by frame, streaming replays images of many channels simultaneously or images of a single channel by using a streaming viewer;
stores the image signals of each transmitter being streaming replayed to a designated storage space under the control of a supervisor.

9 more elements

A digital type wireless monitoring method for performing a monitoring by displaying on a screen image signals captured from cameras, which are wirelessly transmitted from transmitters installed within a specific distance from the transmitters to a receiver,

wherein the method comprises:
(1) performing an MPEG-4 encoding, for each frame, of the image signals captured by the cameras from a plurality of the transmitters by using an MPEG-4 codec;
performing again the MPEG-4 encoding of each of thus encoded MPEG-4 image signals by frame with an encoder, which compresses only the image signals while excluding audio signals;
creating files by combining a header having information of each transmitter and communication standard with each of the image signals for each frame, where the image signals are encoded twice;
and transmitting the files containing header information formed with each frame by using different channels to an AP;
(2) receiving the files containing the header information of each frame which are simultaneously transmitted via different channels for each frame from a plurality of the transmitters;
and transmitting respective files received from the transmitters to the receiver having a permanent IP address by using a time division method;
and,
(3) receiving the files containing header information by frame captured from a plurality of the transmitters via the AP;
after decoding respective files by specifying each transmitter based on the information contained in the header of each of the files by frame received, streaming replaying images of different channels simultaneously or images of a single channel by using a streaming viewer;
and storing the image signals of each transmitter being streaming replayed to a designated storage space under the control of a supervisor.

8 more elements

Dependencies are inferred from the claim text.