초록 ▼

An apparatus for statistically multiplexing a plurality of video signals is provided with a complexity detector, coupled to receive a pre-compressed video signal, for generating a complexity signal which relates to the complexity of the pre-compressed video signal, an encoder for compressing a non-c

An apparatus for statistically multiplexing a plurality of video signals is provided with a complexity detector, coupled to receive a pre-compressed video signal, for generating a complexity signal which relates to the complexity of the pre-compressed video signal, an encoder for compressing a non-compressed video signal at a variable compression rate to generate a compressed video signal, a controller for controlling the variable compression rate of the encoder based on the complexity signal, and a multiplexer coupled to receive the pre-compressed video signal and the compressed video signal. The apparatus may be provided in a broadcasting system, such as a satellite broadcasting system. The broadcast system may include a transmitter coupled to receive the video signals from the multiplexer, a satellite coupled to receive the video signals from the transmitter, a receiver for receiving video signals from the satellite, and one or more decoders connected to receive video signals from the receiver.

대표청구항 ▼

[ What is claimed is:] [10.] An apparatus for statistically multiplexing a plurality of pre-compressed video signals with a plurality of live video signals, said apparatus comprising:a first complexity detector coupled to receive a first live video signal having a complexity which varies over time,

[ What is claimed is:] [10.] An apparatus for statistically multiplexing a plurality of pre-compressed video signals with a plurality of live video signals, said apparatus comprising:a first complexity detector coupled to receive a first live video signal having a complexity which varies over time, said first complexity detector generating a first complexity signal which relates to said complexity of said first live video signal;a second complexity detector coupled to receive a second live video signal having a complexity which varies over time, said second complexity detector generating a second complexity signal which relates to said complexity of said second live video signal;a first encoder for compressing said first live video signal at a variable compression rate to generate a first compressed video signal;a second encoder for compressing said second live video signal at a variable compression rate to generate a second compressed video signal;a third complexity detector coupled to receive a first pre-compressed video signal having a complexity which varies over time, said third complexity detector generating a third complexity signal which relates to said complexity of said first pre-compressed video signal;a fourth complexity detector coupled to receive a second pre-compressed video signal having a complexity which varies over time, said fourth complexity detector generating a fourth complexity signal which relates to said complexity of said second pre-compressed video signal;a controller for controlling said variable compression rates of at least one of said first and second encoders based on said first, second, third and fourth complexity signals; anda multiplexer coupled to receive said first and second pre-compressed video signals and said first and second compressed video signals.