Title:
DIRECT CONVERSION RECEIVER
Document Type and Number:
WIPO Patent Application WO/2008/059560
Kind Code:
A1
Abstract:
A direct conversion receiver wherein even when signals are successively received, the
DC offset voltage can be removed. The direct conversion receiver comprises a
local oscillator (16) that generates a local oscillation signal having the same
frequency as a desired signal to be received; a mixer (14) that mixes a broadcast wave
signal received via an antenna (12) with the local oscillation signal to generate
a baseband signal; PLL circuits (20,30) that receive the baseband signal outputted
by the mixer (14); and analog-to-digital converters (28,38) and a signal processing
part (40) that sever as a demodulating circuit for demodulating signals outputted
by the PLL circuits (20,30). The PLL circuits (20,30) generate the signals that
are synchronized with the baseband signal and that have no correlation to the
DC offset voltage included in the baseband signal.
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Inventors:
MIYAGI HIROSHI (JP)
Application Number:
PCT/JP2006/322613
Publication Date:
May 22, 2008
Filing Date:
November 14, 2006
Export Citation:
Assignee:
NEURO SOLUTION CORP (JP)
MIYAGI HIROSHI (JP)
MIYAGI HIROSHI (JP)
International Classes:
H04B1/30
Foreign References:
| JPH0653856A | 1994-02-25 | |||
| JPH1032515A | 1998-02-03 |
Attorney, Agent or Firm:
AMAGAI, Masahiko (Hyakunin-cho 3-chome, Shinjuku-ku Tokyo 73, JP)
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