http://www.freshpatents.com/Amplifiers-dtnewntc330.php USPTO Class 330 - Amplifiers en-us Tue, 18 Aug 2009 22:19:36 -0700 1000 Wednesday Thursday Friday Saturday Sunday 141 31 http://www.freshpatents.com/index.php?rss=true http://www.freshpatents.com/images/freshpatentsnav_rss.gif http://www.freshpatents.com/Amplifier-device-and-system-using-the-device-dt20090813ptan20090201083.php Tue, 18 Aug 2009 22:19:36 -0700 A device comprising: an input for an electric signal; an integrator stage connected to said input to provide an integrated signal; an amplifier stage electrically coupled to the integrator stage to receive said integrated signal and to provide an output signal. The device being characterized in that the integrator stage... http://www.freshpatents.com/Multi-mode-power-amplifiers-dt20090813ptan20090201084.php Tue, 18 Aug 2009 22:19:36 -0700 Multi-mode power amplifiers that can support multiple radio technologies and/or multiple frequency bands are described. In one exemplary design, a first linear power amplifier supporting multiple radio technologies may be used to amplify a first RF input signal (e.g., for low band) and provide a first RF output signal. A... http://www.freshpatents.com/Power-amplifying-apparatus-and-mobile-communication-terminal-dt20090813ptan20090201085.php Tue, 18 Aug 2009 22:19:36 -0700 A power amplifying apparatus includes an input terminal configured to receive an input signal, a first power amplifier biased for class A or class AB operation which is configured to amplify the input signal, an output terminal connected to an output of the first power amplifier, a second power amplifier... http://www.freshpatents.com/Current-sense-amplifier-with-extended-common-mode-voltage-range-dt20090813ptan20090201086.php Tue, 18 Aug 2009 22:19:36 -0700 A circuit includes an input stage configured to receive and amplify an input signal to produce an amplified signal, where the input signal is referenced to a higher voltage and is associated with a common mode voltage. The circuit also includes level shifter resistors configured to level shift the amplified... http://www.freshpatents.com/Differential-input-amplifier-dt20090813ptan20090201087.php Tue, 18 Aug 2009 22:19:36 -0700 An amplifier comprises: first and second supply terminals intended to receive a DC supply voltage; a first branch coupled between the first and second supply terminals and including a first terminal of application of a differential signal to be amplified; a second branch coupled between the first and second supply... http://www.freshpatents.com/High-frequency-power-amplifier-dt20090813ptan20090201089.php Tue, 18 Aug 2009 22:19:36 -0700 A high frequency power amplifier includes an amplifying device for amplifying an input high frequency signal, a harmonic reflection circuit for reflecting a harmonic outputted from the amplifying device, and a harmonic generating circuit provided at an input terminal of the amplifying device, the harmonic generating circuit including a divider... http://www.freshpatents.com/Measuring-load-impedance-of-an-amplifier-driving-a-variable-load-dt20090813ptan20090201088.php Tue, 18 Aug 2009 22:19:36 -0700 According to an aspect of the present invention, the magnitude and phase angle of looking-in impedance driven by an amplifier are computed in digital domain during normal operation within a module containing the amplifier. In an embodiment, the computed magnitude and phase angle are used for impedance matching at a... http://www.freshpatents.com/Signaling-system-with-low-power-aut0matic-gain-control-dt20090813ptan20090201090.php Tue, 18 Aug 2009 22:19:36 -0700 An integrated circuit device includes a variable-gain amplifier, memory circuit and gain control update circuit. The variable-gain amplifier generates an amplified signal having an amplitude according to a gain control value that is stored, at least during a first interval, within the memory circuit. The update circuit generates an updated... http://www.freshpatents.com/System-and-method-for-controlling-attenuator-dt20090813ptan20090201091.php Tue, 18 Aug 2009 22:19:36 -0700 An apparatus for setting an attenuation of an attenuator includes a control transistor, which includes a drain connected to a gate of a shunt transistor of the attenuator. A channel resistance of the shunt transistor corresponds to a current density of the control transistor, and the channel resistance of the...