A radio transmitterfront end for use in a radio frequency (RF) transceiver includes at least
one amplifier stage operable to generate a transmit signal in response to an upconverted sig …

BACKGROUND Audio microphones are commonly used in a variety of consumer
applications such as cellular telephones, digital audio recorders, personal computers and …

A method for tuning a filter is provided. The amplitude of a first signal (I 1) is compared with
the amplitude of a comparison signal. The first signal is generated with a first filter, which …

A tuning method and circuit for an LC tank resonant circuit, including an inductor and a
variable capacitor, are described. In a tuning mode, an RF input signal is applied to an input …

An apparatus includes an elliptical inductance-capacitance (LC) filter and a resistive-
capacitive (RC) notch filter seri ally coupled to the elliptical LC filter. The elliptical LC filter …

(57) ABSTRACT Radio-frequency (RF) circuits, methods and systems are implemented
according to a variety of embodiments. Accord ing to one such embodiment, a radio …

In accordance with an embodiment, a method includes determining an amplitude of an input
signal provided by a capacitive signal source, compressing the input signal in an analog …

US20070275669A1 - Method, Apparatus and Signal for, Transmitting/Receiving Information
Comprising Primary and Secondary Messages in a Same Transmission - Google Patents …

The present disclosure is to provide a power wireless transmitter in a magnetic resonance-
based wireless power transmission system, wherein when, due to a presence of a metal, an …

According to an embodiment, a method includes amplifying a signal provided by a
capacitive signal source to form an amplified signal, detecting a peak voltage of the …