Title:
送信装置及び送受信装置
Document Type and Number:
Japanese Patent JP4794621
Kind Code:
B2
Abstract:
A transmitter 14 , which receives an input video signal VS_IN and an input audio signal AS_IN from an MPEG decoder 17 , includes therein a dummy signal production circuit 11 and a selection circuit 12 . The dummy signal production circuit 11 produces a dummy video signal VS_D having a higher resolution than that of the input video signal VS_IN. The selection circuit 12 outputs one of the input video signal VS_IN and the dummy video signal VS_D as a selected video signal VS to a video/audio transmitter circuit 13 , based on a control signal CS input based on an amount of information of the input audio signal AS_IN. The video/audio transmitter circuit 13 multiplexes the input audio signal AS_IN with the selected video signal VS to produce and transmit a video/audio signal VAS. Thus, irrespective of the format of the video signal, an audio signal having a high sample rate or a multi-channel audio signal can be transmitted while being multiplexed with the video signal.
Inventors:
Rei Yanagisawa
Application Number:
JP2008501622A
Publication Date:
October 19, 2011
Filing Date:
December 13, 2006
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H04N7/04; G10L19/00; H04N7/045; H04N7/173; H04N7/52
Domestic Patent References:
| JP1194585A |
Foreign References:
| EP1400977A1 | 2004-03-24 |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura