Title:
増幅装置
Document Type and Number:
Japanese Patent JP5003134
Kind Code:
B2
Abstract:
A pulse modulator generates a pulse-modulated signal by pulse-modulating and amplifying the amplitude component of an input signal. A low-pass filter filters the pulse-modulated signal from the pulse modulator, and generates an amplified amplitude signal which is obtained by amplifying the amplitude component. An error corrector generates a corrected amplitude signal by correcting an error of the amplified amplitude signal from the low-pass filter by using the amplitude component of the input signal. A mixing unit generates the output signal by mixing the corrected amplitude signal from the error corrector and the phase component of the input signal.
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Inventors:
Kunihiro Kazuaki
Kiyohiko Takahashi
Kiyohiko Takahashi
Application Number:
JP2006335657A
Publication Date:
August 15, 2012
Filing Date:
December 13, 2006
Export Citation:
Assignee:
NEC
International Classes:
H03F1/06; H03F1/26; H03F1/34; H03F3/19; H03F3/217
Domestic Patent References:
| JP2005295534A | ||||
| JP5267941A | ||||
| JP4271506A | ||||
| JP10256843A |
Foreign References:
| US20050064830 | ||||
| US20020030543 | ||||
| US5905407 | ||||
| US20050122163 | ||||
| WO2004075398A1 |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata