Amplifiers – With semiconductor amplifying device – Including gain control means
Reexamination Certificate
2006-02-23
2008-05-27
Nguyen, Khanh V (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including gain control means
C330S133000, C330S310000
Reexamination Certificate
active
07378909
ABSTRACT:
By using a radio-frequency power amplifier which turns off an Nth stage radio-frequency amplifying transistor when the level of radio-frequency output power falls below a predetermined value, it is possible to improve the linearity when the level of the radio-frequency output power is so low.
REFERENCES:
patent: 6701134 (2004-03-01), Epperson
patent: 6701138 (2004-03-01), Epperson et al.
patent: 7123094 (2006-10-01), Tahara et al.
patent: 2004-501527 (2004-01-01), None
McDermott Will & Emery LLP
Nguyen Khanh V
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