Title:
VIDEO/AUDIO MULTIPLEX TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/1990/010993
Kind Code:
A1
Abstract:
A system for transmitting and receiving multiplexed video and audio signals. The video and audio signals are balanced to enhance the transmission quality and to use the transmission capability fully under the condition of a limited transmission capacity. At least one of the information contents of the video and audio signals is detected. According to this detection, the transmission contents are controlled in respect to the transmission ratio of the video and audio signals and the correction of the difference between the processing speeds of the two signals. Hence, the transmission quality is improved, especially in TV conference systems having only insufficient transmission capacities.
Inventors:
DANGI RYOICHI (JP)
FUJIYAMA TAKEHIKO (JP)
USUI TOSHIAKI (JP)
KAWABATA TAKASHI (JP)
FUJIYAMA TAKEHIKO (JP)
USUI TOSHIAKI (JP)
KAWABATA TAKASHI (JP)
Application Number:
PCT/JP1990/000356
Publication Date:
September 20, 1990
Filing Date:
March 16, 1990
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H04B14/04; H04N7/14; H04N7/15; H04N7/32; H04N7/52; H04N7/54; (IPC1-7): H04B14/04; H04N7/13; H04N7/15
Foreign References:
| JPS62226781A | 1987-10-05 | |||
| JPH06315559A | 1994-11-15 | |||
| JPS61159883A | 1986-07-19 | |||
| JPH0227887A | 1990-01-30 |
Other References:
See also references of EP 0418396A1
Attorney, Agent or Firm:
Aoki, Akira (Seiko Toranomon Bldg. 8-10, Toranomon 1-chom, Minato-ku Tokyo 105, JP)
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