Title:
DEMULTIPLEXING DEVICE, MULTIPLEXING DEVICE, AND RELAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/026417
Kind Code:
A1
Abstract:
The invention provides a demultiplexing device in which the circuit scale can be reduced. The device comprises: a demultiplexing signal selector/distributor (130) for subjecting one or more reception signals to frequency conversion and downsampling, and outputting the resulting signals to a specified output destination; frequency-converting reception low-pass filters (101)-(114) for performing frequency conversion and low-pass filtering, and outputting a downsampled signal; selectors (131)-(136) for switching the input source of a signal that is output to the frequency-converting reception low-pass filter of a subsequent stage; reception channel filters (121)-(128) for shaping the waveform of signals from the frequency-converting reception low-pass filters (107)-(114) in accordance with desired frequency characteristics, and outputting the signals; and a filter bank controller (13) for generating, on the basis of channel information inferred from one or more reception signals, a control signal for controlling the demultiplexing signal selector/distributor (130) and the selectors (131)-(136).
Inventors:
FUJIMURA AKINORI (JP)
Application Number:
PCT/JP2011/068848
Publication Date:
March 01, 2012
Filing Date:
August 22, 2011
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
FUJIMURA AKINORI (JP)
FUJIMURA AKINORI (JP)
International Classes:
H03H17/02; H04B7/15; H04J1/00
Domestic Patent References:
| WO2010064485A1 | 2010-06-10 | |||
| WO2007136010A1 | 2007-11-29 | |||
| WO2011065287A1 | 2011-06-03 |
Foreign References:
| JP2001111639A | 2001-04-20 | |||
| JPH0884049A | 1996-03-26 | |||
| JP2738385B2 | 1998-04-08 |
Other References:
See also references of EP 2611030A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims: