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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Application No. | Application Title | Issue Date |
| 20120001692 | ADAPTIVE POWER AMPLIFIER Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dynami... | 01/05/2012 |
| 20110309884 | SOLID-STATE RF POWER AMPLIFIER FOR RADIO TRANSMITTERS An RF power amplifier includes a first amplifier module comprising a first push-pull amplifier including a first plurality of field effect transistors and a first output transformer. An output impedance of the first amplifier module is 25 ohms. A second amplifier module... | 12/22/2011 |
| 20110248782 | RF POWER AMPLIFIER A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The ... | 10/13/2011 |
| 20110050344 | OUTPUT STAGE FOR A DIGITAL RF TRANSMITTER, METHOD FOR PROVIDING AN RF OUTPUT SIGNAL IN A DIGITAL RF TRANSMITTER, AND DIGITAL RF TRANSMITTER An output stage (1) for a digital RF transmitter is provided. The output stage comprises: an input adapted to receive an input signal (RFin, b7-b0) to be transmitted; a plurality N of power amplification sections (S1, S2, S3, S<... | 03/03/2011 |
| 20100244962 | DISTRIBUTED ACTIVE TRANSFORMER BASED MILLIMETER-WAVE POWER AMPLIFIER CIRCUIT A distributed active transformer (DAT) based millimeter-wave (MMW) power amplifier circuit is designed for power amplification of MMW frequency signals. The proposed MMW power amplifier circuit is characterized by distributing the input frequency signals into two sets o... | 09/30/2010 |
| 20100164628 | DISTRIBUTED ACTIVE TRANSFORMER AMPLIFIER WITH DIFFERENTIAL POWER COMBINER A power amplifier formed by a plurality of pairs of transistors, each pair including a first transistor and a second transistor having each a respective input terminal and a respective output terminal. The output terminals of the first and second transistors of each pai... | 07/01/2010 |
| 20100156537 | SOLID-STATE RF POWER AMPLIFIER FOR RADIO TRANSMITTERS An RF power amplifier includes a push-pull amplifier having field effect transistors. Temperature compensating bias circuitry provides a temperature compensated bias voltage to the transistors for decreasing the bias voltage thereof as temperature increases. The tempera... | 06/24/2010 |
| 20100148872 | POWER AMPLIFIER HAVING TRANSFORMER A power amplifier amplifying and compositing differential signals and capable of suppressing harmonics is provided. The power amplifier includes first amplifiers amplifying a first input signal and a second input signal, which are differential signals, a first coil rece... | 06/17/2010 |
| 20100117737 | RF POWER AMPLIFIER A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The ... | 05/13/2010 |
| 20090002071 | Distributed Circular Geometry Power Amplifier Architecture The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to be amplified. The power amplifier comprises a plurality of push-pull amplifiers interconnected in a novel cir... | 01/01/2009 |
| 20080204139 | Reconfigurable distributed active transformers Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dynami... | 08/28/2008 |
| 20070188233 | AMPLIFIER DEVICE An amplifier device including at least one operational amplifier, whereby a transformer is connected upstream from the input of the operational amplifier and the output signal of the operational amplifier or a signal generated from this output signal is fed back again t... | 08/16/2007 |
| 20070030071 | Reconfigurable distributed active transformers Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dynami... | 02/08/2007 |
| 20070001765 | Monolithic transformer based amplifier for integrated circuits Monolithic transformer based amplifier for integrated circuits. The amplifier includes an input transformer with a first impedance transforming ratio. The input transformer includes a coupled line structure. An amplification circuit is coupled to the input transformer. ... | 01/04/2007 |
| 20060250187 | Distributed circular geometry power amplifier architecture The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to be amplified. The power amplifier comprises a plurality of push-pull amplifiers interconnected in a novel cir... | 11/09/2006 |
| 20060186956 | High output power amplifier with adjustable voltage transformation ratio of transformer A high output power amplifier with change of voltage transformation ratio of a transformer is disclosed. The high output power amplifier using a transformer installed to output leads thereof, which can increase dynamic range and efficiency thereof as voltage transformat... | 08/24/2006 |
| 20050140447 | Reconfigurable distributed active transformers Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dynami... | 06/30/2005 |
| 20050030098 | Distributed circular geometry power amplifier architecture The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to be amplified. The power amplifier comprises a plurality of push-pull amplifiers interconnected in a novel cir... | 02/10/2005 |
