Title:
WIRELESS SYSTEM AND METHOD FOR SWITCHING RESOLUTION LEVEL OF MOVING IMAGE
Document Type and Number:
WIPO Patent Application WO/2011/001758
Kind Code:
A1
Abstract:
A base station employs adaptive modulation that changes the modulation method according to the state of the radio waves. A terminal device selects a modulation method for data transmitted to the base station according to the reception state of radio waves transmitted from the base station, selects a resolution level for moving images that corresponds to said determined modulation method, and transmits moving image data captured by a camera to the base station at said selected resolution level.
Inventors:
MORISHIMA MASAAKI (JP)
Application Number:
PCT/JP2010/058595
Publication Date:
January 06, 2011
Filing Date:
May 21, 2010
Export Citation:
Assignee:
NEC CORP (JP)
MORISHIMA MASAAKI (JP)
MORISHIMA MASAAKI (JP)
International Classes:
H04W4/18; H04N7/173; H04W16/32; H04W28/18
Domestic Patent References:
| WO2004068806A1 | 2004-08-12 |
Foreign References:
| JP2009124393A | 2009-06-04 | |||
| JP2008245140A | 2008-10-09 | |||
| JP2008263580A | 2008-10-30 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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