Device and method for adjusting bit rate in multiplex system

Application Number: 00102913
Application Date: 2000.03.09
Publication Number: 1266335
Publication Date: 2000.09.13
Priority Information: 1999/3/9 FR 9902907
International: H04N7/24
Applicant(s) Name: Thomson Broadcasting Systems S. A.
Inventor(s) Name: Patris Alexande;Jean-Louis Diascone;Diari Lafnan
Patent Agency Code: 11021
Patent Agent: zhu jingui
Abstract A device for regulating bit rate in a system for statistically multiplexing system is disclosed. The statistical multiplexing system includes a device (1) for allocating bit rate using the complexity calculated by a bit rate regulating device (10). Each coder E(i) of an image stream includes a first coding device (20) and a second coding device and a memory for storing the complexity X<1st>| of the last image. The complexity (X<->GOP) of the last group of pictures is coded by the second coding device (30),the last bit rate Ri allotted by the bit rate allocation device (1). Device (10) regulates the bit rate of coder E(i) for determining the complexity value for the next image coded ,this complexity value is transmitted to the bit rate allocator (1).