公开(公告)号：JPH0368294A

公开(公告)日：1991-03-25

申请号：JP13865290

申请日：1990-05-30

Applicant: KOREA ELECTRONICS TELECOMM ,  KORIA TELECOMMUN OOSORITEII

Inventor： YON SUU RII ,  OO UUKU KUON ,  YOO HON JIYUN ,  I HON KIMU ,  MIYON HORII

IPC: G06F15/167 ,  G06T11/60 ,  H04M9/00 ,  H04N5/907 ,  H04N7/14 ,  H04N7/50

Abstract: PURPOSE: To improve videophone performance by additionally providing a shared memory means which is connected to a VME bus and an image bus so as to execute a message keeping function for synchronization and communication between processing elements, etc. CONSTITUTION: A source CODEC part 25 divides an image encoding function so as to process a part of it by correspondence and input data is inputted from an adjacent processing element through a frame memory part 23, a shared memory part 24 or a pipeline. The processing result is transmitted to the succeeding adjacent processing element through the pipeline or transmitted to the processing element which is not adjacent through the shared memory part 24 and reduced final image information is transmitted to a TX buffer 26 and transmitted to a network connecting part 27. When an image compounding function is executed, the input from the RX buffer 26 is processed and the final compounded image is transmitted to the frame memory part 23.