http://www.freshpatents.com/Amplifiers-dtnewntc330.php USPTO Class 330 - Amplifiers en-us Thu, 24 Jul 2008 15:01:41 -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/Tunable-microwave-devices-with-auto-adjusting-matching-circuit-dt20080717ptan20080169874.php Thu, 24 Jul 2008 15:01:41 -0700 An embodiment of the present invention provides an apparatus, comprising a power amplifier with a tunable impedance matching circuit including a plurality of tunable dielectric varactors and a DC voltage source interface capable of providing voltage to said plurality of saud tunable dielectric varactors.... http://www.freshpatents.com/Level-shifting-buffer-dt20080717ptan20080169875.php Thu, 24 Jul 2008 15:01:41 -0700 An analog level-shifting buffer for providing signal amplitude and/or common mode adjustment is disclosed. In one example, a receiver system may include a first amplification stage that is powered, for example, via an I/O power supply (e.g., VDDIO) and a second amplification stage that is powered, for example, via a... http://www.freshpatents.com/Method-of-forming-an-operational-amplifier-and-structure-therefor-dt20080717ptan20080169876.php Thu, 24 Jul 2008 15:01:41 -0700 In one aspect, an operational amplifier is configured to form a quiescent current that is a ratio of a current of a current source of the operational amplifier and to provide a load current to a load that is not ratioed to the current of the current source.... http://www.freshpatents.com/Amplifier-for-use-in-radio-frequency-band-dt20080717ptan20080169877.php Thu, 24 Jul 2008 15:01:41 -0700 A cascode-connected transistor includes a common-source transistor which receives an input signal, and a common-gate transistor which is connected to a drain terminal of the common-source transistor and outputs an output signal. A band-pass filter receives the output signal of the cascode-connected transistors. An adjustment circuit is interposed between the...