Title:
DIGITAL AMPLIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/019487
Kind Code:
A1
Abstract:
A digital amplification device includes a digital amplification section and a low pass filter for integrating a digital signal. The digital amplification device further includes a current feedback circuit coupled to the low pass filter via a transformer for feedback to a differential input terminal. A signal relating distortion is fed back and there is provided a digital amplification device in which distortion is reduced.
Inventors:
NAKAGAKI TOSHIYA (JP)
Application Number:
PCT/JP2003/009442
Publication Date:
March 04, 2004
Filing Date:
July 25, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
NAKAGAKI TOSHIYA (JP)
NAKAGAKI TOSHIYA (JP)
International Classes:
H03F3/217; H03F1/34; (IPC1-7): H03F3/217
Foreign References:
| JPH04159803A | 1992-06-03 | |||
| JPH07131272A | 1995-05-19 | |||
| JPS62144411A | 1987-06-27 |
Other References:
See also references of EP 1455445A4
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. Ltd. (1006, Oaza Kadom, Kadoma-shi Osaka, JP)
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