Bizarre Patents
A kissing shield comprised of a thin, flexible membrane and a frame or holder.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8183923 | Constant gain amplifier system with gain control feedback Constant and accurate signal gain systems based on controlling signal amplifier gain level by applying the signal amplifier output signal to a signal level divider with a set ratio. The output signal of the signal level divider is applied to one input of the gain co... | 05/22/2012 |
| 8149057 | Signal processing circuit A signal processing circuit includes a waveform shaping section that applies a first gain to an input signal and generates a first signal when an absolute value of a level of the input signal falls within a first input range from a first level to a second level, a v... | 04/03/2012 |
| 7940122 | Amplifier circuit and communication device There is provided an amplifier circuit having a common-source amplifier, an output load connected to an output terminal of the common-source amplifier, a buffer circuit connected to the output terminal of the common-source amplifier, a feedback circuit connected bet... | 05/10/2011 |
| 7915955 | Bias balancing circuit The invention discloses a bias balancing circuit. The bias balancing circuit is used for balancing an output voltage outputted by an amplifier module. The amplifier module has a variable gain. The bias balancing circuit comprises a comparator and a voltage selector.... | 03/29/2011 |
| 7898334 | Amplifier with output filtering An amplifier circuit includes an amplifier including an inverting input that communicates with an input signal, a non-inverting input, and an output. A first feedback path communicates with the inverting input and the output of the amplifier. A second feedback path ... | 03/01/2011 |
| 7843266 | Amplifier for improving electrostatic discharge characteristic An amplifier for improving an electrostatic discharge (ESD) characteristic includes an operational amplifier, a first resistor circuit, a first fuse box, a second resistor circuit, and a second fuse box. The operational amplifier includes a first input terminal rece... | 11/30/2010 |
| 7795978 | Programmable gain circuit and amplification circuit One aspect of the embodiments relates to a programmable gain circuit including an amplification unit amplifying an input signal, an input resistor coupled to an input terminal of the amplification unit, a feedback resistor coupled between an output terminal of the a... | 09/14/2010 |
| 7719362 | Programmable-gain amplifier systems to facilitate low-noise, low-distortion volume control Programmable-gain amplifier systems are provided that are particularly suited for reducing degrading audio effects such as zipper noise. In one embodiment, these systems switchably couple an electronic potentiometer between an amplifier's inverting input terminal an... | 05/18/2010 |
| 7679446 | Variable-gain low-noise amplifier A variable-gain low-noise amplifier is provided. The variable-gain low-noise amplifier includes a first load, a second load, an input transistor, a pole/zero control circuit, and a gain control circuit. A first terminal of the first load is connected to a power-sour... | 03/16/2010 |
| 7652537 | Amplifier with programmable input impedance One embodiment of the invention includes an amplifier system. The amplifier system comprises an amplifier stage configured to receive an input signal at an amplifier input and to provide an amplified output signal. The amplifier system also comprises a programmable ... | 01/26/2010 |
| 7605659 | Gain adjustment for programmable gain amplifiers A programmable gain amplifier (PGA) circuit includes a gain adjust circuit and a gain select circuit that are both coupled to an output of an amplifier. The gain select circuit completes feedback to the amplifier while the gain adjust circuit is arranged to boost or... | 10/20/2009 |
| 7595693 | System and method for providing a configurable inductor less multi-stage low-noise amplifier In accordance with a particular embodiment of the present invention, an apparatus is offered that includes a configurable feedback low noise amplifier (LNA) connected to a common source connected input transistor to realize a specific value of an input impedance, th... | 09/29/2009 |
| 7564310 | Amplifier for improving electrostatic discharge characteristic An amplifier for improving an electrostatic discharge (ESD) characteristic includes an operational amplifier, a first resistor circuit, a first fuse box, a second resistor circuit, and a second fuse box. The operational amplifier includes a first input terminal rece... | 07/21/2009 |
| 7551031 | Amplifier The amplifier comprises an inverting negative feedback amplifier circuit using an operational amplifier, a comparator for comparing the potential of the negative phase input terminal of the operational amplifier with the reference potential Vref of the comparator, a... | 06/23/2009 |
| 7495514 | Low noise amplifier A low noise amplifier including a first-stage signal amplifier, a second-stage signal amplifier and a gain control unit is disclosed. The first-stage signal amplifier is for receiving an input signal and outputting a first output signal accordingly. The second-stage... | 02/24/2009 |
| 7423487 | Variable gain feedback amplifier circuit apparatus and method therefor A variable gain feedback amplifier circuit comprising a degenerated common emitter circuit coupled to an emitter follower circuit, an output of the emitter follower circuit being coupled to an input of the degenerated common emitter circuit via a variable feedback i... | 09/09/2008 |
| 7417506 | Amplifier having switchable negative feedback An amplifier having programmable amplification includes a transistor circuit having a plurality of negative feedback resistors, a switch being associated to a negative feedback resistor such that the negative feedback resistors of the transistor circuit can be activ... | 08/26/2008 |
| 7417499 | Gain controlled amplifier and cascoded gain controlled amplifier based on the same A gain controlled amplifier and a cascoded gain controlled amplifier based on the same are disclosed. The gain controlled amplifier includes an operational amplifier for amplifying an input signal, an input resistor connected to an input terminal of the operational ... | 08/26/2008 |
| 7417500 | Control of an adjustable gain amplifier A method of controlling an adjustable gain of an amplifier is disclosed. The method includes setting an output of a replica amplifier to be equivalent to a precision reference with a control loop, summing an adjustable offset voltage into the control loop, adjusting... | 08/26/2008 |
| 7414476 | Sensor interface circuitry having adjustable gain and Q, and method for adjusting sensor interface circuitry gain and Q A sensor interface filter having adjustable gain and Q is provided. The sensor interface includes a first operational amplifier coupled to gain circuitry, a gain stage, and a resistor. The gain circuitry and gain stage are electrically coupled to each other. The gai... | 08/19/2008 |
| 7391260 | Variable gain amplifier and variable gain amplifier module An analog variable gain amplifier (VGA) adjusting a signal level of a mobile communication system is provided. More particularly, design of a VGA using an operational transconductance amplifier (OTA) having a wide linear input/output range is disclosed. The VGA incl... | 06/24/2008 |
| 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 |
| 7378881 | Variable gain amplifier circuit Embodiments of a variable gain amplifier circuit are described. In one embodiment, multiple resistor devices are coupled in series to form a string of resistor devices and to receive an input current. A multiple input operational amplifier device has an amplifier ou... | 05/27/2008 |
| 7365606 | Receiving amplifier, in particular for television receivers, and use of the receiving amplifier A receiving amplifier includes a semiconductor body with a first node, a second node and an amplifier circuit. The amplifier includes at least one field-effect transistor, a first input, and a second input. A capacitive element is arranged between the inputs of the ... | 04/29/2008 |
| 7356314 | Systems and methods for reusing a low noise amplifier in a wireless communications device A wireless communication device comprises a plurality of receive signal paths, each of the receive signal paths is configured to receive signals in a certain frequency bandwidth. The communication device also comprises an amplifier coupled with each of the plurality... | 04/08/2008 |
| 7348849 | Variable gain amplifier A complementary metal oxide semiconductor (CMOS) variable gain amplifier has a wider decibel-linear gain variation characteristic with respect to a control voltage when a signal is amplified. The variable gain amplifier includes: a bias input circuit for supplying a... | 03/25/2008 |
| 7345546 | Amplifier circuit and input circuit A disclosed amplifier circuit is capable of changing a gain to amplify an input signal according to a control signal. The amplifier circuit comprises a differential amplifier circuit adapted to receive and amplify the input signal to output the amplified input signa... | 03/18/2008 |
| 7339434 | Linear-in-dB variable gain amplifier using geometric ladder circuit A variable gain amplifier uses a geometric ladder circuit that produces a transfer function having substantially uniform steps measured in dB. Where the ladder has a plurality of substantially identical resistor rungs of a first resistance, one stile that is a condu... | 03/04/2008 |
| 7336131 | Gigabit ethernet transceiver with analog front end Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-li... | 02/26/2008 |
| 7337026 | Digital audio volume control A serial interface has an input for receiving a digital audio signal and an output for serially outputting bits of the digital audio signal. A shift register includes a serial input connected to the output of the serial interface for storing bits of the digital audi... | 02/26/2008 |
| 7321266 | Current-matching variable gain amplifier A current-matching variable gain amplifier is provided. The amplifier comprises a reference current source, at least one cascode amplifier, a matching circuit, a control circuit, and at least one first blocking circuit. The reference current source provides a refere... | 01/22/2008 |
| 7304543 | Burst-mode TIA (trans-impedance amplifier) Devices and methods for processing signals using a Burst-Mode TIA that meets EPON and GPON specifications are disclosed herein. A signal provided by a power detector is processed with the appropriate gain by using a gain selector which includes a feedback circuit to... | 12/04/2007 |
| 7299015 | Transmission output control circuit, and wireless device using the same According to a transmitting output control circuit, one end of a coupling capacitor and one end of main line of a directional coupler are coupled with an output terminal of a power amplifier. A switch for coupling the other end of the coupling capacitor and one end ... | 11/20/2007 |
| 7295061 | Fully integrated programmable gain chopper amplifier with self DC offset suppression Chopper amplifiers and methods of amplification are provided. A circuit includes an adjustable modulation resistance network, an amplifier, and an adjustable feedback resistance network. The adjustable modulation resistance network receives and modulates an input si... | 11/13/2007 |
| 7292097 | Amplifier and method for processing signals In some embodiments, an apparatus includes an amplifier circuit and a bias circuit coupled to the amplifier. The amplifier circuit includes an input port and an output port, an input port circuit element coupled to the input port, an output port circuit element coup... | 11/06/2007 |
| 7292100 | Interpolated variable gain amplifier with multiple active feedback cells An interpolated variable gain amplifier (VGA) utilizes multiple active feedback cells. The active feedback cells may be implemented as transconductance (gm) cells that replicate gm cells in the interpolated input stages. ... | 11/06/2007 |
| 7279977 | Integrated circuit with resistive network having reduced mismatch An integrated circuit includes a resistive circuit with reduced mismatch that includes a primary resistive network with several main resistances (Rp) each having the same theoretical main value. It also includes an auxiliary resistance (Rau) having an auxiliary theo... | 10/09/2007 |
| 7279969 | Signal amplification method and amplifier array An amplifier array includes a servo amplifier, which has a reference signal input, a return signal input, and an output signal connection, which supplies an output signal path, a reference signal generator, which supplies reference signals with different level heigh... | 10/09/2007 |
| 7268990 | Power amplifier protection A power amplifier protection circuit that includes protection circuitry to variably shunt an input radio frequency (RF) signal to AC ground, turn off bias to an output transistor of a power amplifier, and turn off the output transistor. The power amplifier protectio... | 09/11/2007 |
| 7265616 | Charge amplifier In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an output terminal. An adjustable feedback resistor element is provide to be connected between the inverting t... | 09/04/2007 |
