公开(公告)号：JPH0636592B2

公开(公告)日：1994-05-11

申请号：JP25313889

申请日：1989-09-28

Applicant: GRAPHICS COMMUNICATION TECH ,  BELL COMMUNICATIONS RES

Inventor： MARUYAMA MASANORI ,  FUJIWARA HIROSHI ,  JOFU HIROO ,  IWASAKI ISAO ,  MINGUUTEINGU SAN

IPC: H04N7/133

公开(公告)号：JPH03114383A

公开(公告)日：1991-05-15

申请号：JP25313889

申请日：1989-09-28

Applicant: GRAPHICS COMMUNICATION TECH ,  BELL COMMUNICATIONS RES

Inventor： MARUYAMA MASANORI ,  FUJIWARA HIROSHI ,  JOFU HIROO ,  IWASAKI ISAO ,  MINGUUTEINGU SAN

Abstract: PURPOSE: To provide a signal conversion device, suitable for efficient digital transmission by arbitrarily selecting the scan mode of an input signal. CONSTITUTION: When an inputted signal is subjected to an orthogonal conversion and is outputted, data obtained by orthogonal conversion is stored in a second data storage part 15, and address information of a sequence corresponding to the desired scan mode is given to this data storage part 15 to read and output the data stored. When the inputted signal is subjected to inverse orthogonal conversion and is outputted, the input signal to be subjected to inverse orthogonal conversion is stored in a first data storage part 12 and a read out. In this case, address information of a sequence corresponding to a desired scan mode is given to the data storage part 12 to store or read out the data, and this data is subjected to an inverse orthogonal conversion and is outputted. Thus efficient digital transmission is executed.