Patents
Sitemap › H03 - Basic electronic circuitry › H03D - Demodulation or transference of modulation from one carrier to another › H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing
Patents for H03D 7 - Transference of modulation from one carrier to another, e.g. frequency-changing (7,673)
06/2003
06/25/2003CN1426632A Frequency converter and communication device
06/25/2003CN1112773C Method and apparatus for selecting from multiple mixer
06/24/2003US6584486 Method for mathematically processing two quantities in an electronic circuit
06/24/2003US6584305 Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band
06/24/2003US6583675 Apparatus and method for phase lock loop gain control using unit current sources
06/19/2003WO2003050945A2 Image reject mixer
06/19/2003WO2003007470A3 Harmonic mixer
06/19/2003US20030114130 Frequency converter and communication device
06/19/2003US20030112895 Intergrated frequency translation and selectivity
06/19/2003US20030112049 DC offset cancellation
06/18/2003EP1319267A2 Complex valued delta sigma phase locked loop demodulator
06/18/2003EP0676861B1 Balancing mixer, distributor and band blocking filter used therefor, and method for mixing frequencies
06/17/2003US6580902 Frequency translation using optimized switch structures
06/12/2003US20030109238 Mixer circuit having improved even order noise, dc offset, and linearity characteristic
06/12/2003US20030107441 Linear pre-amplifier for radio-frequency power amplifier
06/12/2003US20030107427 Temperature compensation for internal inductor resistance
06/10/2003US6577854 System and method for radio signal reconstruction using signal processor
06/05/2003WO2002067441A3 Calibration of in-phase and quadrature transmit branches of a transmitter
06/04/2003EP1317073A1 Tuner arrangement and set top box
06/04/2003EP1317065A1 Pi/2 phase shifter
06/03/2003US6574457 Two-transistor mixer
05/2003
05/29/2003US20030098806 Rejecting interference for simultaneous received signals
05/28/2003EP1315285A2 Method and system for down-converting an electromagnetic signal
05/28/2003EP1315284A1 Direct-conversion transmitting circuit and integrated transmitting/receiving circuit
05/28/2003EP1315283A2 A mobile radiotelephone
05/28/2003EP1314257A1 A mixer
05/28/2003EP1314255A2 Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals
05/28/2003CN1110124C Receiving mixer circuit for mobile radio transceiver
05/22/2003WO2003043180A1 Multiple analog and digital downconversion
05/22/2003US20030094989 Multiplier
05/22/2003US20030094976 Mixer circuit, receiver circuit, and frequency comparison circuit
05/22/2003CA2466351A1 Multiple analog and digital downconversion
05/21/2003EP1313209A1 Quadrature frequency multiplier
05/21/2003EP1312160A1 Linear pre-amplifier for radio-frequency power amplifier
05/21/2003CN1419336A Frequency changing device
05/20/2003US6567654 Elimination of spurious signals in double conversion tuner using a dynamic intermediate frequency and a preselected crystal reference frequency
05/15/2003WO2001067592A3 Direct conversion up-converter for broadband wireless access equipment
05/15/2003US20030092418 Frequency conversion apparatus
05/15/2003US20030092417 Method and apparatus for matching receiver carrier frequency
05/15/2003US20030092416 Direct-conversion transmitting circuit and integrated transmitting/receiving circuit
05/14/2003EP1311071A2 Frequency conversion apparatus
05/14/2003CN1417953A Frequency converter circuit
05/13/2003US6564045 Broadband frequency multiplier
05/08/2003US20030087623 Mixer circuit having a preamplifier
05/08/2003US20030087619 Frequency conversion circuit having a low phase noise
05/07/2003CN1108066C Selective paging wireless receiver using direct conversion method
05/07/2003CN1108017C Direct conversion receiver and method of receiving data
05/06/2003US6560451 Square wave analog multiplier
05/06/2003US6560447 DC offset correction scheme for wireless receivers
05/06/2003US6560301 Integrated frequency translation and selectivity with a variety of filter embodiments
05/06/2003US6560297 Image rejection downconverter for a translation loop modulator
05/06/2003US6559706 Mixer circuitry
05/06/2003US6559705 Circuit arrangement
05/01/2003WO2003036322A2 Method for open loop tracking gps signals
05/01/2003WO2002039580A3 Direct conversion receiver
05/01/2003US20030083852 Active removal of aliasing frequencies in a decimating structure by changing a decimation ratio in time and space
05/01/2003US20030083033 Sampling mixer with asynchronous clock and signal domains
04/2003
04/30/2003CN1414810A Mixing apparatus for double-frequency-conversion receiver
04/24/2003WO2003034715A2 Monolithic integrated circuit for a television receiver
04/24/2003US20030078027 Even harmonic mixer with high-input, third-order intercept point
04/24/2003US20030078026 Mixing circuit with low noise factor when operating at low frequency
04/24/2003US20030078020 Low order spur cancellation mixer topologies
04/24/2003US20030078017 Mixer for dual conversion receiver
04/24/2003US20030076080 Linear power conversion circuit
04/23/2003EP1304795A1 Mixer for double frequency conversion
04/23/2003EP1303907A2 Frequency converter for multi-channel systems
04/23/2003CN1412942A Input circuit for tuner and semiconductor device
04/22/2003US6553216 RF tunable filter arrangement with tunable image trap
04/22/2003US6552586 Biasing of a mixer
04/22/2003CA2406780A1 Mixer for dual conversion receiver
04/17/2003US20030073421 Input circuit for tuner and semiconductor device
04/17/2003US20030072389 Precision inphase / Quadrature up-down converter structures and methods
04/17/2003US20030071925 Receiving apparatus
04/17/2003US20030071693 Integral mixer and oscillator device
04/17/2003US20030071674 Double balance mixer circuit and orthogonal demodulation circuit using the same
04/16/2003EP1303038A1 Input circuit for tuner and semiconductor device
04/16/2003CN1410297A Communication method of motor vehicle spread spectrum CDMA and bifrequency point
04/15/2003US6549766 System and method for on-chip filter tuning
04/15/2003US6549763 Receiving apparatus and method
04/10/2003WO2002019515A3 Receiver, and method
04/10/2003US20030068996 Triple balanced mixer
04/10/2003US20030068990 Method and system for frequency up-conversion with a variety of transmitter configurations
04/09/2003EP1300956A1 Receiving apparatus
04/09/2003EP1300939A1 Even harmonic mixer
04/09/2003EP1300938A2 System and method for frequency up-conversion
04/09/2003EP1300827A1 Image processing device for transmitting color with fidelity and image data providing method
04/09/2003EP1032982B1 Transceiver architecture in a dual band mobile phone
04/09/2003CN1409525A Modulation method and device for executing Nyquist folding frequency
04/09/2003CN1409481A Receiver
04/09/2003CN1409480A Mixing circuit with low noise coefficient during low frequency working
04/09/2003CN1409479A Linear power converting circuit
04/09/2003CN1105424C Compensation for second order intermodulation in homodyne receiver
04/08/2003US6545569 Filtering device and method of eliminating a DC component by shifting the transfer function
04/08/2003US6545516 Frequency conversion
04/03/2003WO2003028206A1 Multiband receiver and method associated therewith
04/03/2003US20030064699 Down-converting multiple received radio frequency signals
04/03/2003US20030064698 Linearization apparatus for mixer
04/03/2003US20030064680 Apparatus and method for receiving transmit wave
04/03/2003US20030062951 Variable gain mixer/amplifier with fixed DC operating voltage level
04/02/2003EP1298792A1 Gilbert-Cell Mixer
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