Telecommunications – Transmitter
Reexamination Certificate
2008-05-06
2008-05-06
Nguyen, Simon D. (Department: 2618)
Telecommunications
Transmitter
C455S108000, C455S116000, C375S300000
Reexamination Certificate
active
11105692
ABSTRACT:
A digital amplitude modulation (AM) transmitter with pulse width modulating RF drive is presented. A plurality of RF amplifiers, each, when turned on, amplifies an applied RF drive signal by the same amount to provide a unit step RF output. An encoder supplies turn-on signals to turn on a number of the RF amplifiers wherein the number varies as a function of the value of an applied audio signal. The width of the unit step RF output is varied as a function of the number of the RF amplifiers that are turned on.
REFERENCES:
patent: 4122415 (1978-10-01), Luther et al.
patent: 4580111 (1986-04-01), Swanson
patent: 6097615 (2000-08-01), Dent
patent: 6147553 (2000-11-01), Kolanek
patent: 6201452 (2001-03-01), Dent et al.
patent: 6294957 (2001-09-01), Luu
patent: 6411655 (2002-06-01), Holden et al.
patent: 6480465 (2002-11-01), Luu
patent: 6859098 (2005-02-01), Husseini
patent: 6889034 (2005-05-01), Dent
patent: 7091778 (2006-08-01), Gan et al.
patent: 7099635 (2006-08-01), McCune
patent: 7187231 (2007-03-01), McGrath et al.
patent: 7212069 (2007-05-01), Schell et al.
patent: 2004/0124916 (2004-07-01), Kontson
Harris Corporation
Nguyen Simon D.
Tarolli, Sundheim Covell & Tummino LLP
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