Quotables
"If you build a better mousetrap, you will catch better mice."
George Gobel
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 |
| 8121579 | Active mixer circuit and a receiver circuit or a millimeter-wave communication unit using it The present invention provides a semiconductor integrated circuit including an active mixer circuit that is operated at low voltage, low noise, and low power consumption. It includes a transconductance amplifier, a transformer, and a multiplier, connects a transform... | 02/21/2012 |
| 8073419 | Coherent tunable filter apparatus and wireless communication front-end circuit thereof A front-end circuit with coherent tunable filters is provided. The circuit includes a first filter, an amplifier, and a second filter. The amplifier is coupled to the first filter, and the second filter is coupled to the amplifier. Furthermore, the amplifier is plac... | 12/06/2011 |
| 8014747 | Amplitude detecting device An amplitude detecting device of the present art increases the slope of the change in output voltage corresponding to the change in amplitude of an input signal to improve the detection accuracy of amplitude change of input signal, without changing the dynamic range... | 09/06/2011 |
| 7991378 | Time-error and frequency-error correction in a multi-carrier wireless communications system Methods and apparatus for automatic frequency control in wireless receivers configured to simultaneously receive multiple carrier signals at distinct radio frequencies are disclosed. An exemplary wireless device comprises at least first and second radio front-end ci... | 08/02/2011 |
| 7979047 | Sampling filter The present invention aims at providing a sampling filter capable of changing a filtering characteristic without use of a complicate waveform as a control signal. A sampling filter 100 has a control section 140, a plurality of integrators, and a plural... | 07/12/2011 |
| 7869785 | Method and apparatus for enhancing the speed of wideband signal search systems A Method and Apparatus for Enhancing the Speed of Wideband Signal Search Systems provides a system that can perform hyper fast scanning for signals while at the same time provide very good phase noise performance. The method and apparatus provide a way to reduce cos... | 01/11/2011 |
| 7844243 | Receiver for differential and reference voltage signaling with programmable common mode In one embodiment of the invention, a receiver has two mux circuits, two receiver circuits, and a mixer. The muxes select first and second input signals for the receiver circuits. A p-type transistor in a transmission gate in each mux is connected (i) at its channel... | 11/30/2010 |
| 7822403 | Receiver, transceiver circuit, signal transmission method, and signal transmission system A receiver has an offset application circuit for applying a known offset to an input signal, and a decision circuit for comparing the offset-applied input signal with a reference voltage. The level of the input signal is determined based on the known offset and on t... | 10/26/2010 |
| 7796971 | Mixer/DAC chip and method An electronic chip has a data input for receiving an input digital data signal with a data frequency, a plurality of switches, and a logic circuit operatively coupled with both the plurality of switches and the data input. The logic circuit controls the switches to ... | 09/14/2010 |
| 7792514 | Envelope detector for AM radio A receiver for receiving an amplitude modulated (AM) signal may include a first and a second detector for detecting the maximum and minimum envelope values, respectively, of the received AM signal and an equalizer for periodically equalizing the maximum and minimum ... | 09/07/2010 |
| 7787853 | Method and device for the reduction of the DC component of a signal transposed into baseband, in particular in a receiver of the direct conversion type A method is for reducing a DC component of an input signal transposed into baseband and being generated by a first frequency transposition stage starting from an initial signal and from a transposition signal. The method includes amplifying the transposed input sign... | 08/31/2010 |
| 7764942 | Tuning circuitry utilizing frequency translation of an impedance from a fixed-filter frequency response A circuit and method for tracking a local oscillator signal frequency in an RF tuner, for tuning input RF signals. The RF tuner includes a frequency-dependent impedance generator that generates a frequency-dependent impedance at the input by rejecting unwanted input... | 07/27/2010 |
| 7734273 | Frequency mixer device and method for compensating DC offset A frequency mixer device is provided with a mixer circuit having an input cell that amplifies an input signal and a switching cell that mixes the amplified input signal with a switching signal and outputs a multiplied signal, and a DC offset compensator that detects... | 06/08/2010 |
| 7634248 | Configurable circuits using phase change switches Configurable circuits using phase change switches are described. The switches use phase change or phase transition material to create configurable connections between devices and/or interconnecting layers of an integrated circuit in order to change the behavior of t... | 12/15/2009 |
| 7603100 | High-frequency radio apparatus A high-frequency wireless communication device is provided that is capable of enlarging the range of communication by enhancing reception sensitivity while avoiding mutual interference. The device comprises an antenna filter and a direct detection type reception mec... | 10/13/2009 |
| 7590401 | Super-regenerative microwave detector A resonant tunneling diode or diode array oscillator (10) including a resonant diode (11) is coupled to a millimeter-wave source (14) and a quench generator (16) for periodically quenching the oscillations so that the average oscillation ... | 09/15/2009 |
| 7529534 | Signal converter for converting a start signal to an end signal and method for converting a start signal to an end signal A signal converter for converting a start signal into an end signal includes means for copying the start signal to obtain a plurality of copied start signals, wherein a copied start signal may be fed into a processing branch as a branch signal. Further, the signal c... | 05/05/2009 |
| 7529533 | Configurable homodyne/heterodyne radio receiver and RFID reader employing same The embodiments of the present invention provide a configurable homodyne/heterodyne RF receiver including first and second mixers. The configurable homodyne/heterodyne RF receiver functions as a homodyne receiver when the first and second mixers are configured to op... | 05/05/2009 |
| 7509113 | Monolithic optical autocompensation read-out circuit for precise reflection measurements of distances A circuit and method are given, to realize a loudness control for mobile phone earpieces and speakers with the help of a proximity sensor, which is realized as an infrared photo-electric guard circuit, where only very few external parts are needed. As a novelty here... | 03/24/2009 |
| 7505752 | Receiver for differential and reference-voltage signaling with programmable common mode In one embodiment of the invention, a receiver has two mux circuits, two receiver circuits, and a mixer. The muxes select first and second input signals for the receiver circuits. A p-type transistor in a transmission gate in each mux is connected (i) at its channel... | 03/17/2009 |
| 7471941 | Amplifier assembly including variable gain amplifier, parallel programmable amplifiers, and AGC An amplifier assembly receives an input signal including multiple frequency channels. A first stage amplifier amplifies the input signal, to produce at an output thereof an amplified first signal including the multiple frequency channels. A plurality of second stage... | 12/30/2008 |
| 7447493 | Tuner suitable for integration and method for tuning a radio frequency signal A tuner (200) includes a direct digital frequency synthesizer (206) and a mixer (220). The direct digital frequency synthesizer (206) has an output terminal for providing a digital local oscillator signal having a frequency chosen to mix ... | 11/04/2008 |
| 7433667 | Signal conditioning circuit A signal conditioning circuit contains an oscillator which is connected to the inputs of two mixers. The output of one mixer is coupled, so as to form a feedback path, to a frequency divider circuit whose first output is coupled to the second input of the first mixe... | 10/07/2008 |
| 7430247 | Carrier frequency detection for N-ary phase modulated signal Carrier frequency detection for an N-ary modulated signal is achieved by digitizing the N-ary modulated signal, frequency shifting the digitized N-ary modulated signal to prevent aliasing, raising the frequency-shifted signal to the Nth power, transformin... | 09/30/2008 |
| 7418237 | Electric circuit and transmission method for telemetric transmission The invention relates to an electric circuit for a telemetric transmission. A semiconductor transistor switch switches a quenching circuit into an electrically conductive state to prevent oscillation of a resonance circuit. The semiconductor transistor switch switch... | 08/26/2008 |
| 7415263 | Receiver for a wireless communication device A receiver for a wireless communication device comprising means for determining a sequence of code block addresses for received rate matched encoded data to allow rate de-matching and decoding to be performed on a code block by code block basis for the received rate... | 08/19/2008 |
| 7412222 | Quadrature correction method for analog television reception using direct-conversion tuners A direct conversion radio frequency (RF) tuner includes a mixer generating I and Q quadrature components. A phase detection circuit generates a phase error measurement between the I quadrature component and the Q quadrature component. A phase correction circuit corr... | 08/12/2008 |
| 7403752 | Multi-channel communications transceiver A transceiver system according to the present invention transmits data utilizing the baseband and one or more frequency separated transmission bands. A baseband transmitter is combined with one or more transmitters that transmit data into one of the frequency separa... | 07/22/2008 |
| 7400874 | Integrated circuit comprising a clock-signal generator, smart card comprising an integrated circuit of this kind and associated method for the generation of clock signals A contactless integrated circuit receiving an RF signal comprises a clock-signal generator to produce a clock signal from a first half wave and a second half wave representing the received RF signal. Also disclosed is a method for the generation of a clock signal in... | 07/15/2008 |
| 7400871 | Multi-antenna receiving and processing circuit assembly A multi-antenna receiving and processing circuit assembly is disclosed to include multiple antennas for receiving wireless signals, multiple pre-processing units respectively electrically connected to the antennas, a matching circuit electrically connected to the pr... | 07/15/2008 |
| 7400904 | Dual mode AM-FM receiver with I-Q decoding, such as for utility data collection Methods and apparatus demodulate and decode a plurality of AM and FM arriving signals, which permit, for example, a utility data-collecting unit to concurrently receive and decode transmitted signals of legacy transmitters as well as more recent FM based transmitter... | 07/15/2008 |
| 7395037 | Control system for controlling an output signal power level of a wireless transmitter A method and system for controlling an output signal power level of a wireless transmitter can be created by detecting the signal power level of the transmitter with a detector, selectively attenuating the output signal power level with an attenuator having variable... | 07/01/2008 |
| 7392024 | Radio receiver, radio communication system and electronic equipment According to the radio receiver, a first path P1 included in a frequency conversion circuit 12 does not have a filter, and a filter 171 for extracting a reference signal 74c is provided in a second path P2 so that a second I... | 06/24/2008 |
| 7389100 | Method and circuit for down-converting a signal Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing ra... | 06/17/2008 |
| 7386292 | Apparatus, system, and method for down-converting and up-converting electromagnetic signals Methods, systems, and apparatuses, for down-converting and up-converting an electromagnetic signal. In embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles of the carrier signal. The recursive operations c... | 06/10/2008 |
| 7379728 | Wireless communication system A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge port... | 05/27/2008 |
| 7376409 | Bandpass filter with integrated variable gain function using improved resistor array The invention enables a gain adjustment in a receiver to improve signal quality by varying resistance of an input resistor array of a bandpass filter, the array having a plurality of resistors in series with switches that out of the path of the current when the resi... | 05/20/2008 |
| 7376441 | Apparatus and method of interacting with a mobile phone using a TV system An apparatus and a method for interacting with a mobile telephone are provided. A remote control unit receives a user command and transmits it to a TV system which recognizes the user command as a telephone function command and transmits the function command to the ... | 05/20/2008 |
| 7376410 | Methods and systems for down-converting a signal using a complementary transistor structure Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing ra... | 05/20/2008 |
| 7373127 | Digital beam forming for communications systems An antenna-receiver communications system and method is provided to mechanize multibeam mobile antenna-receive subsystems. Digital beam forming for modern wideband mobile communications systems is provided. In an aspect, subsystems can simultaneously receive, acquir... | 05/13/2008 |
