Multiple power mode amplifier with bias modulation option...

Details Multiple power mode amplifier with bias modulation option... Multiple power mode amplifier with bias modulation option...

2008-06-17

2008-06-17

Choe, Henry K (Department: 2817)

Amplifiers

Combined with automatic amplifier disabling switch means

C330S12400D

Reexamination Certificate

active

07388427

ABSTRACT:
A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.

REFERENCES:
patent: 3434070 (1969-03-01), Bartnik et al.
patent: 5152004 (1992-09-01), Väisänen et al.
patent: 5175871 (1992-12-01), Kunkel
patent: 5276912 (1994-01-01), Siwiak et al.
patent: 5530923 (1996-06-01), Heinonen et al.
patent: 5661434 (1997-08-01), Brozovich et al.
patent: 5758269 (1998-05-01), Wu
patent: 5909643 (1999-06-01), Aihara
patent: 6060949 (2000-05-01), Kaufman et al.
patent: 6066983 (2000-05-01), Okoro
patent: 6069526 (2000-05-01), Ballantyne
patent: 6205318 (2001-03-01), Schindler et al.
patent: 6356150 (2002-03-01), Spears et al.
patent: 6363685 (2002-04-01), Kugler
patent: 6374116 (2002-04-01), Peterzell et al.
patent: 6487419 (2002-11-01), Freed
patent: 6603359 (2003-08-01), Fujiwara et al.
patent: 6630861 (2003-10-01), Kawaoka
patent: 6700439 (2004-03-01), Jackson
patent: 6943631 (2005-09-01), Scherrer et al.
patent: 2004/0108901 (2004-06-01), Apel et al.
patent: 0977354 (2000-02-01), None
patent: 1032120 (2000-08-01), None
patent: 1229642 (2002-08-01), None
patent: 1330021 (2003-07-01), None
patent: 1612932 (2004-06-01), None
patent: 09/036675 (1987-07-01), None
patent: 2001-0105151 (2001-11-01), None
English Abstract and drawing corresponding to Korean patent document No. 2001-0105151, 2 pages.
Patent Abstracts of Japan—English language abstract of Japanese Patent Application No. 07/181672 filed Jul. 18, 1995.
English language translation of Official Action dated Apr. 9, 2007 for Japanese Patent Appln. No. 2004/055035.
Official Action dated Apr. 9, 2007 from the Japanese Patent Office for Japanese Patent Appln. No. 2004/055035 (Japanese language).

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