发明名称 DIGITAL DATA TRANSMISSION SYSTEM
摘要 <p>PROBLEM TO BE SOLVED: To attain transmission at a high transmitting speed, while holding the number of channels and quality as they are by multiplexing the output of a variable-speed image encoding device and the output of a digital data generating device, and controlling generated information. SOLUTION: A dynamic image/sound signal input signal 500 is compression- encoded by a variable-speed image encoding device 30. An encoded signal 501 is inputted to a multiplexing part 31. The multiplexing part 31 outputs a control signal 502 of the generated information amounts of the variable-speed image encoding device 30 and the other channel variable-speed encoding devices. Then, digital data in which a transmission delay time is allowable in a certain level are outputted as a digital data signal 504, generated by a digital data generating device 32. The signal 504 is multiplexed with the encoded signal of the moving image/sound signal by the multiplexing part 31. A control signal 505 of generated information amounts is outputted from the multiplexing part 31 to the digital data generating device 32. A multiplexed signal 506 after being modulated by a modulating part 33 is transmitted from a transmitting part 34 to a satellite.</p>
申请公布号 JPH10173674(A) 申请公布日期 1998.06.26
申请号 JP19960333379 申请日期 1996.12.13
申请人 HITACHI LTD 发明人 DATE SATORU;KINOSHITA TAIZO
分类号 H04N7/08;H04H20/00;H04H20/74;H04L12/56;H04L12/70;H04N7/081;H04N7/24;H04N7/50;H04N7/52;H04N7/58;H04Q3/00;(IPC1-7):H04L12/28;H04H1/00 主分类号 H04N7/08
代理机构 代理人
主权项
地址