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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7423489 | Low return loss resistive feedback amplifier Embodiments related to resistive feedback amplifiers are presented herein. ... | 09/09/2008 |
| 7417498 | Amplifier with feedback bridge An amplifier, in particular for RF-applications, comprises a circuit board (2), at least one amplifier stage with at least one transistor package (8) arranged on the circuit board (2), and a feedback path (12) around the at least one tran... | 08/26/2008 |
| 7388428 | Power amplifier with controllable feedback loop The present invention relates to a power amplifier for amplifying an electronic input signal (51) and a multi-band capable frontend with such power amplifier. The power amplifier comprises an amplifier transistor stage (1) having an input (52) a... | 06/17/2008 |
| 7355479 | Neutralization of feedback capacitance in amplifiers A transistor amplifier circuit has a current to current feedback transformer for neutralization of feedback capacitance and setting the input impedance of the amplifier. IM3 cancellation is implemented by out-of-band terminations at the input, which does not depend ... | 04/08/2008 |
| 7339436 | Ultra broad-band low noise amplifier utilizing dual feedback technique This invention relates to a low noise amplifier, used in radio frequency integrated circuit design, especially low noise amplifiers for ultra broad-band wireless communication, comprising at least a transistor of the core circuit of a low noise amplifier structure, ... | 03/04/2008 |
| 7332971 | Multi-gigabit/s transimpedance amplifier for optical networks A Gigabit/s transimpedance amplifier system includes a forward-path amplifier section with a very large bandwidth and an overall frequency-selective feedback section which is active only from DC to low frequencies. The forward-path of the amplifier comprises a regul... | 02/19/2008 |
| 7324791 | Low-noise differential bias circuit and differential signal processing apparatus A low-noise differential bias circuit is provided which obtains excellent noise characteristics while ensuring excellent distortion characteristics. A collector of a transistor Q11 is connected to a voltage supply point (Vcc) via a resistor R15. A base... | 01/29/2008 |
| 7319364 | Amplifier circuit having improved linearity and frequency band using multiple gated transistor Disclosed herein is an amplifier circuit having improved linearity and frequency band using a MGTR. The amplifier circuit comprises an amplification unit including a main transistor and an auxiliary transistor, an attenuation unit including inductors respectively co... | 01/15/2008 |
| 7298205 | Amplifier and frequency converter An amplifier circuit amplifies a signal inputted from an input terminal. A first feedback circuit is placed across an emitter of a bipolar transistor and an input of the amplifier circuit. A second feedback circuit is placed across the input and an output of the amp... | 11/20/2007 |
| 7295070 | Flip around switched capacitor amplifier A flip around amplifier circuit is provided that includes an amplifier having first and second amplification stages, a Miller capacitor, and a resistive element in series with the Miller capacitor, where an output line of the second amplification stage can be couple... | 11/13/2007 |
| 7292098 | Operational amplifier An operational amplifier is described. The operational amplifier includes a first stage, a second stage, a third stage, and a fourth stage. The amplifier includes a nested transconductance-capacitance compensation configuration. The third stage includes class AB con... | 11/06/2007 |
| 7289784 | Active tunable filter circuit An active tunable filter circuit for use as an integratable active filter in a mobile radio apparatus, comprises an active amplifier circuit (A) including a reactive feedback network including a first tunable element (L1) set to pass with amplification a want... | 10/30/2007 |
| 7282991 | On-chip amplifier/line driver compensation circuit An embodiment of the present invention includes an amplifier on an integrated circuit, with the amplifier having positive and negative inputs, and positive and negative outputs. A first feedback capacitor is on the integrated circuit between the positive input and t... | 10/16/2007 |
| 7279981 | Compensation method for low voltage, low power unity gain amplifier A unity gain amplifier has a current mirror. A compensation circuit has an input coupled to an output of the current mirror. An output transistor has a base coupled to the output of the current mirror and a source of the output transistor is coupled to an output of ... | 10/09/2007 |
| 7277677 | Control device for antenna matching circuit A control device for an antenna matching circuit is configured to output an adjusting signal for changing impedance of an element in the antenna matching circuit based on change over time in signal power ratio of a reflected signal from the antenna matching circuit ... | 10/02/2007 |
| 7274523 | Read head preamplifier with thermal asperity transient control A preamplifier for correcting for thermal asperity transients in disk drives using magneto resistive read heads. The preamplifier has an input gain stage receiving a signal from the read head and an output buffer outputting a reader output to a read channel that is ... | 09/25/2007 |
| 7274257 | Variable gain wideband amplifier The invention relates to a feedback or feedforward type variable gain wideband amplifier. The variable gain wideband amplifier includes a feedback-type inversion amplifier circuit 310 for amplifying input Vin, a feedback-type non-inversion amplifier circuit | 09/25/2007 |
| 7271660 | Selectively adding auxiliary frequency compensation depending on the behaviour of an output transistor of a rail-to-rail operational amplifier A frequency compensation device for providing added compensation to an operational amplifier, such as a bipolar or MOS rail-to-rail output operational amplifier, when the output device of the operational amplifier is in saturation. The device comprises a detector ci... | 09/18/2007 |
| 7253688 | Input matching circuit for multiband low noise amplifier Provided is a multiband low noise amplifier including a first transistor, an input matching circuit, and a first capacitor. The first transistor includes a collector electrically connected to a first power supply, a grounded emitter, and a base connected to the othe... | 08/07/2007 |
| 7230476 | Bipolar high impedance element A bipolar high impedance element comprises a p-n diode made from a compound semiconductor, and circuitry arranged to reverse-bias the diode such that the diode conducts a nearly constant current—thereby enabling the element to be employed as a high impedance eleme... | 06/12/2007 |
| 7227420 | Transimpedance amplifier with a high gain/bandwidth product for conversion of a DAC output current The two output currents (INP, IN) which are produced by a current source digital/analog converter (DAC) are supplied to the two halves of a symmetrical transimpedance amplifier. The input current (INP, IN) is supplied to a first stage, which is formed by a first tra... | 06/05/2007 |
| 7221218 | MOSFET amplifier having feedback controlled transconductance A signal is applied to the body of a MOSFET to enhance the transconductance of the MOSFET. The signal applied to the body of the MOSFET has essentially the same waveform as an input signal supplied to the gate of the MOSFET, and is shifted by approximately 180 degre... | 05/22/2007 |
| 7215221 | Harmonic termination circuit for medium bandwidth microwave power amplifiers A compact amplifier output bias circuit is used as a broadband harmonic termination. The bias circuit is adapted as a harmonic termination circuit to produce an effective low impedance or act as a load at the signal harmonic frequencies while having the capability o... | 05/08/2007 |
| 7212072 | High linearity smart HBT power amplifiers for CDMA/WCDMA application A power amplifier includes larger size transistors to provide higher power gain at lower frequencies. Transistors of transistor unit cells include a horseshoe-shaped emitter and a strip-shaped base to increase gain. Transistors are combined at a first level to form ... | 05/01/2007 |
| 7208924 | Semiconductor integrated circuit device The invention intends to provide a technique that achieves a sufficient phase margin with ease. The circuit includes a power supply circuit that is formed with a phase compensating resistor and a phase compensating capacitor, between a second input terminal of a dif... | 04/24/2007 |
| 7202746 | Multiple-stage operational amplifier and methods and systems utilizing the same A multiple-stage operational amplifier including a gain stage for amplifying an input signal and implementing a dominant pole producing a frequency response having a gain roll-off with frequency and a unity gain frequency. An intermediate stage is coupled to an outp... | 04/10/2007 |
| 7199652 | Amplifier; and transmitter and communication device incorporating the same The present invention provides an amplifier for amplifying a high-frequency signal and outputting an amplified signal. The amplifier includes: an amplification element which is a bipolar transistor or a field-effect transistor; and an inductor connected between a ba... | 04/03/2007 |
| 7199668 | Integrated circuit and optical pickup device An integrated circuit includes a first-stage amplifier circuit and a following-stage amplifier circuit connected in series, a common power source pad for supplying power to the amplifier circuits, and metal wires respectively connecting the common power source pad t... | 04/03/2007 |
| 7191507 | Method of producing a wireless communication device A method for manufacturing wireless communication devices for use in tracking or identifying other items comprises a number of cutting techniques that allow the size of the antenna for the wireless communication device. Further, the chip for the wireless communicati... | 03/20/2007 |
| 7194093 | Measurement method for perceptually adapted quality evaluation of audio signals A measurement method for evaluating the disturbances in an audio signal or test signal (1a, b) by comparing it to an undisturbed reference signal (1c, d). After being prefiltered (2) using the transfer functions of the outer and mi... | 03/20/2007 |
| 7183853 | Feedback amplifier having amplified signal path and feedback signal path separated A separation circuit part is used to separate an amplified signal path from a feedback signal path. An amplifier circuit part comprises a resistor-loaded common-source FET, a level adjustment diode and a source-follower circuit. The separation circuit part comprises... | 02/27/2007 |
| 7181297 | System and method for delivering customized audio data A method for providing customized audio data products that includes the steps of (1) storing a machine readable hearing profile for a customer, (2) accepting via a data input device or data network for example, machine readable orders from the customer for a particu... | 02/20/2007 |
| 7176769 | Harmonic termination circuit for medium bandwidth microwave power amplifiers A compact amplifier output bias circuit is used as a broadband harmonic termination. The bias circuit is adapted as a harmonic termination circuit to produce an effective low impedance at the signal harmonic frequencies while having the capability of supplying DC po... | 02/13/2007 |
| 7173487 | Power amplification circuit and communication device using the same A power amplification circuit, and a communication device using the same, which are capable of suppressing gain decreases of a power amplifier due to increases in input signal power in a state near the saturation operation, capable of reducing its size, and low in d... | 02/06/2007 |
| 7162046 | Microphone-tailored equalizing system A method and system is described to improve the reproduction of sound of an acoustic musical instrument. According to one embodiment, a first microphone is placed at a proximate location to the musical instrument to pick up the sound of the musical instrument. The s... | 01/09/2007 |
| 7154330 | Stability compensation for adjustable gain amplifier Stability compensation for an amplifier with adjustable gain is provided via adjustable capacitance coupled to an input of a gain element within the amplifier. Gain of the amplifier is adjusted by an adjustable resistance coupled between the input and output of the ... | 12/26/2006 |
| 7138870 | System and method for providing a lossless and dispersion-free transmission line A lossless (or low loss) transmission line can be constructed using an auxiliary conductor inductively coupled to the primary conductor and driven by the primary conductor through an active shunt network distributed along the transmission line. The auxiliary conduct... | 11/21/2006 |
| 7132890 | System and method for providing distributed amplification A distributed amplifier, or if desired, an oscillator can be constructed using an active transmission line. The active transmission line, in turn, can be constructed using an auxiliary conductor inductively coupled to the primary conductor. The auxiliary conductor i... | 11/07/2006 |
| 7133655 | Amplifiers and amplifying methods for use in telecommunications devices A signal strength indicator circuit that includes a first amplifier configured to receive a first input signal from a first mixer and a second input signal from a second mixer;. The circuit also includes a second amplifier configured to receive a first set of differ... | 11/07/2006 |
| 7126412 | Preamplification circuit This preamplification circuit comprises a first circuit section, second circuit section the input signal of which is the output signal of the first circuit section, and third circuit section which is connected with the input section of the first circuit section and ... | 10/24/2006 |
