Patent ID: 6408100
Filing Date: 2002-06-18
Classification: H04N

Abstract:
A moving picture decoding device which separates display parameters and a picture coding type from coded data, decodes said coded data, stores said separated display parameters, reads said stored display parameters in the order of display pictures, and processes decoded data according to said read display parameters, said decoding device comprising:a first register group having a data input to receive said separated display parameters, a clock input to receive a first latch signal to store said separated display parameters and a data output to provide the stored display parameters; a selecting circuit having a first and second data inputs coupled to said data input and data output, respectively, of said first register group, a selection control input to receive a selection control signal, and a data output to selectively provide data on said first and second data inputs thereof when said selection contol signal indicates first and second states, respectively; a second register group having a data input coupled to said data output of said selecting circuit, a clock input to receive a second latch signal on said data input thereof, and a data output to provide the stored data thereof; a third register group having a data coupled to said data output of sid second register group, a clock input to receive a display synchronization signal to store data on said data input thereof, and a data output to provide the stored data thereof as said display parameters in the order of display pictures; and a control circuit having an input to receive a picture coding type signal, a selection control output to provide said selection control signal of said first and second states when said picture coding type signal indicates a reference picture for decoding another type signal indicates a reference picture for decoding another picture and a non-reference picture, respectively, a first latch control output to provide said first latch signal with being activated when said picture coding type indicates said reference picture, and a second latch control output to provide said second latch signal with being activated when said picture coding type indicates said non-reference picture.