Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Application No. | Application Title | Issue Date |
| 20110204982 | POWER AMPLIFIER AND BRIDGE CIRCUIT IN POWER AMPLIFIER A power amplifier and a bridge circuit in a power amplifier, thereinto, the power amplifier includes a comparator, a bridge circuit and a low-pass filter. The comparator is adapted to receive a first analog signal, compare the first analog signal with a reference signal... | 08/25/2011 |
| 20110148529 | RADIO FREQUENCY AMPLIFIER WITH EFFECTIVE DECOUPLING A variety of circuits, methods and devices are implemented for radiofrequency amplifiers. According to one such implementation, a radiofrequency amplifier circuit is implemented in a SMD package. The circuit amplifies a radiofrequency signal having a base-band portion a... | 06/23/2011 |
| 20100216411 | MICROWAVE AND/OR MILLIMETER-WAVE BAND AMPLIFIER CIRCUIT, AND MILLIMETER-WAVE TRANSCEIVER USING THEM An amplifier circuit having a flat gain over a wide bandwidth in a high frequency region which is proximate to a maximum oscillating frequency fmax of each transistor and which has a small degree of allowance in terms of performance thereof. The circuit confi... | 08/26/2010 |
| 20100214493 | Enhanced Low Noise Amplifier This amplifier (10) for radio frequency signals comprises a circuit adapted to amplify the signals within a first range of frequency (19) and is characterized in that said circuit is also adapted to simultaneously attenuate the signals within a second rang... | 08/26/2010 |
| 20100194480 | AMPLIFYING DEVICE The present invention concerns an amplifying device arranged to receive an input signal having a certain duty cycle. The amplifying device comprise a first switching unit having an input terminal adapted to receive a first half of the input signal, and an output termina... | 08/05/2010 |
| 20100079211 | MATCHING CIRCUIT, AND RADIO-FREQUENCY POWER AMPLIFIER AND MOBILE PHONE INCLUDING THE SAME Provided is a matching circuit, radio-frequency power amplifier, and mobile phone whereby the second harmonic can be suppressed and the loss of fundamental due to the self resonant frequency of components can be reduced. The output matching circuit includes: a transmiss... | 04/01/2010 |
| 20100073092 | METHOD AND APPARATUS FOR TREATING A RECEIVED SIGNAL TO PRESENT A RESULTING SIGNALWITH IMPROVED SIGNAL ACCURACY A signal treating apparatus for presenting an output signal representing an input signal over a signal range includes: (a) an input section receiving the input signal and presenting a first filtered signal limited to a first bandwidth at a first circuit locus; the input... | 03/25/2010 |
| 20100060363 | WIDEBAND LOW-NOISE AMPLIFIER A wideband low-noise amplifier includes a source-degenerated common-source amplifier, a common-gate amplifier, and a matching frequency band determiner. The source-degenerated common-source amplifier is configured to amplify an input signal to output a first signal that... | 03/11/2010 |
| 20100060362 | CASCODE CIRCUIT A cascode circuit for a high-gain or high-output millimeter-wave device that operates with stability. The cascode circuit including two cascode-connected transistors includes: a first high electron mobility transistor (HEMT) including a source that is grounded; a second... | 03/11/2010 |
| 20100052787 | LIMITING AMPLIFIERS A limiting amplifier with an input stage with dc offset cancellation, identical gain stages, an output buffer and a feedback filter. The input stage receives a differential input signal and outputs a first intermediate differential signal. The gain stages are cascaded t... | 03/04/2010 |
| 20090146741 | High-frequency amplifier, high-frequency module, and mobile wireless apparatus using the same A high-frequency amplifier with high linearity is provided that is easy to integrate and is resistant to variations in transistor characteristics due to process variation. The high-frequency amplifier includes a bias circuit to bias an amplifying element that amplifies ... | 06/11/2009 |
| 20090115532 | IMAGE SIGNAL AMPLIFYING CIRCUIT AND AMPLIFYING SEMICONDUCTOR INTEGRATED CIRCUIT An image signal amplifying circuit comprises: an amplifier circuit for amplifying an image signal; an output capacitor and a resistance, both being serially connected between an output node of the amplifier circuit and an output terminal; and a second-order high pass fi... | 05/07/2009 |
| 20090108944 | LOW-NOISE AMPLIFIER CIRCUIT INCLUDING BAND-STOP FILTER A low-noise amplifier circuit includes a MOS transistor in a common gate amplifier configuration. A single-ended input is at a source of the MOS transistor. A resonant cavity filter circuit is coupled to a gate of the MOS transistor.... | 04/30/2009 |
| 20090039965 | LOW-LOSS ELECTRICAL COMPONENT WITH AN AMPLIFIER An electrical component includes an amplifier that includes an output stage, and a power-supply path for powering the output stage. The power supply path includes a line that includes conductor track sections in parallel. The electrical component also includes a carrier... | 02/12/2009 |
| 20090021309 | Fully Integrated Ultra Wideband Transmitter Circuits and Systems Disclosed is a novel design of a fully integrated UWB transmitter. The transmitter includes a pulse generator, a pulse modulator, and an ultra-wideband drive amplifier. A new low voltage low power pulse generator circuit is disclosed which can be fully integrated in CMO... | 01/22/2009 |
| 20090021307 | MULTI-BAND, INDUCTOR RE-USE LOW NOISE AMPLIFIER Described herein are multi-band LNAs that reuse inductors for different frequency bands to minimize chip area. In an embodiment, a multi-band LNA is capable of operating in a narrowband (NB) and a wideband (WB) while reusing at least one input impedance matching inducto... | 01/22/2009 |
| 20080253477 | Iq-Modulator Pre-Distortion An IQ-modulator pre-distorter includes an iteratively updated digital filter (gQ0, gQ1) for filtering one of the branches of an IQ-signal to compensate for IQ-modulator generated amplitude errors. An iteratively updated digital filter (cQI0 10/16/2008 | |
| 20080218273 | TUNABLE RF BANDPASS TRANSCONDUCTANCE AMPLIFIER Aspects of the disclosure can provide a bandpass transconductance amplifier that can include a minuend transconductance amplifier that converts a voltage signal to a first current and a subtrahend transconductance amplifier that converts the voltage signal to a second c... | 09/11/2008 |
| 20080204148 | AMPLIFIER WITH INTEGRATED FILTER An amplifier with integrated filter (e.g., an LNA) is described. In one design, the amplifier may include a gain stage, a filter stage, and a buffer stage. The gain stage may provide signal amplification for an input signal. The filter stage may provide filtering for th... | 08/28/2008 |
| 20080186103 | RADIO FREQUENCY APPLICATION CIRCUIT A radio frequency (RF) application circuit is provided. In the RF application circuit, a pair of bipolar junction transistors (BJTs), instead of N-channel metal-oxide-semiconductor (NMOS) transistors, is composed of a switch-block operated in a reversion saturation regi... | 08/07/2008 |
| 20080169877 | Amplifier for use in radio-frequency band 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 si... | 07/17/2008 |
| 20080150639 | POWER AMPLIFICATION APPARATUS IN COMMUNICATION SYSTEM Disclosed is a power amplification apparatus in a communication system. The apparatus includes a high power amplifier for amplifying an input signal; and a lattice panel, one surface of which is in contact with a ground plane of the high power amplifier, the one surface... | 06/26/2008 |
| 20080136530 | Power Broadband Amplifier A circuit for broadband amplification is provided. The circuit includes an input HF_IN and an output HF_OUT, a first 90° hybrid coupler being connected to the input HF_IN of the circuit and a second 90° hybrid coupler being connected to the output HF_OUT of the circui... | 06/12/2008 |
| 20080119153 | Multiband Wireless Device and Semiconductor Integrated Circuit When switching over from a portable telephone system of 800 MHz band to a UWB communication system of 9 GHz band, depending upon a signal for changing over a high pass filter and a low pass filter, a reactance element, which is determined to be matching with a load Z of... | 05/22/2008 |
| 20080112711 | OPERATIONAL AMPLIFIER CIRCUIT, BANDPASS FILTER CIRCUIT, AND INFRARED SIGNAL PROCESSING CIRCUIT An operational amplifier circuit 5 of the present invention includes: a transconductance amplifier circuit 1 which converts a differential input voltage into a differential output current; a common-mode feedback circuit 2 which outputs a control sig... | 05/15/2008 |
| 20080012644 | RF POWER SENSOR WITH CHOPPING AMPLIFIER An RF power detector having a wide dynamic range may comprise a chopping amplifier and is configured to detect pulsed high frequency RF signals. The chopping amplifier controlled by a bias current regulator amplifies and chops an RF signal by periodically enabling and d... | 01/17/2008 |
| 20060220745 | Amplification circuit and control method of amplification circuit An amplification circuit connected with a lowpass filter, which reduces the time required for compensating the amplification characteristic and starting up at turning on the power supply, and a control method thereof are provided. An amplification circuit 10, which oper... | 10/05/2006 |
| 20060001492 | Bandpass amplifier The present invention discloses a bandpass amplifier having gain and bandpass performance. The bandpass amplifier includes an input match unit for matching the gain of the amplifier and having a first filter response; a first bias unit electrically connected to the inpu... | 01/05/2006 |
