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Title:
ANALOG-DIGITAL CONVERSION DEVICE AND SIGNAL PROCESSING SYSTEM
Document Type and Number:
Japanese Patent JP2013074308
Kind Code:
A
Abstract:

To reduce the size of an analog-digital conversion device and to decrease the throughput needed to correct an error due to a mismatch between interleaves.

The analog-digital conversion device converts an analog input signal into a digital output signal. The analog-digital conversion device includes an analog-digital conversion unit 12, a pseudo-alias signal generation part 114, a gain control part 116, and an alias signal correction part 118. The analog-digital conversion unit 12 converts the analog input signal into a plurality of digital signals. The pseudo-alias signal generation part 114 generates a pseudo-alias signal simulating an alias signal component included in a composite signal composed of the plurality of digital signals. The gain control part 116 generates a gain control signal controlling the gain of the digital output signal using the pseudo-alias signal. The alias signal correction part 118 corrects the alias signal component using the gain control signal.


Inventors:
WAKI NAOYA
MATSUNO JUNYA
YAMAJI TAKAFUMI
FURUTA MASANORI
Application Number:
JP2011209491A
Publication Date:
April 22, 2013
Filing Date:
September 26, 2011
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
H03M1/12
Domestic Patent References:
JP2004328436A2004-11-18
JP2009239847A2009-10-15
JP2009159534A2009-07-16
Attorney, Agent or Firm:
Hirohito Katsunuma
Yasukazu Sato
Yasushi Kawasaki
Takeshi Sekine
Akaoka Akira
Daisuke Kimoto