Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › H03M 3 - Conversion of analogue values to or from differential modulation
Patents for H03M 3 - Conversion of analogue values to or from differential modulation (7,070)
10/2003
10/02/2003US20030184463 System and method for adaptive sigma-delta modulation
10/01/2003EP1349284A2 Apparatus and methods for digital-to-analog conversion
10/01/2003EP0932932B1 Device for amplifying digital signals
10/01/2003CN1446421A Apparatus for reducing DC offset in receiver
10/01/2003CN1123124C Digital communication device and mixer
09/2003
09/30/2003US6628720 Transmitting apparatus and reproducing apparatus
09/30/2003US6628217 Signal scaling scheme for a delta sigma modulator
09/25/2003US20030181172 Digital-analog converter
09/25/2003US20030179122 D/A converter and delta-sigma D/A converter
09/25/2003US20030179121 Low power, high SNR, high order delta sigma modulator stage having integrators with pipelined cross coupled input circuits
09/25/2003US20030179116 Digital to analog converter
09/24/2003EP1347579A1 Analogue-to-digital sigma-delta modulator with FIR filters
09/23/2003US6624774 Delta sigma D/A converter
09/18/2003WO2003077529A2 Coder apparatus for resonant power conversion and method
09/18/2003WO2003077424A1 Delta-sigma modulator with feed-forward path
09/18/2003US20030174081 Controlled drive circuit for an analog driven power semiconductor
09/18/2003US20030174080 Methods and systems for digital dither
09/18/2003US20030173855 Commutation of sensorless direct-current motors
09/17/2003EP1345330A2 Sigma-delta converter having a digital logic gate core
09/17/2003EP1345329A2 Controlled driving circuit for an analogue-driven power semiconductor
09/17/2003EP1344147A1 Fir decimation filter and method
09/17/2003EP0962094B1 Embedding supplemental data in an encoded signal
09/16/2003US6621441 Attenuating undesired frequencies while sampling a communication signal
09/16/2003US6621436 Delta sigma type AD converter having band pass filter transmission functionality
09/16/2003US6621435 Method and circuit for improving the signal/noise ratio of a sigma-delta modulator
09/12/2003WO2003075603A2 Digital microphone
09/12/2003WO2003075466A1 Method and device for reducing a dataset consisting of process data to be transmitted
09/12/2003WO2003023970A3 Serial data interface with reduced power consumption
09/12/2003WO2002023734A3 Multi-sampling sigma-delta analog-to-digital converter
09/12/2003WO2002009292A3 Adaptive sigma-delta modulation with improved dynamic range
09/11/2003US20030169193 Delta-sigma modulator with feed-forward path
09/10/2003EP1343250A1 Continuous time integrato filter with minimum phase variation, passband Sigma-Delta modulator using this filter
09/08/2003CA2420364A1 Continuous-time and minimal phase variation integration filter, sigma delta modulator, band pass using such a filter
09/04/2003WO2002084880A3 Feedback a/d- or d/a-converter with reduced current consumption
09/04/2003WO2002023732A3 Methods and systems for high speed quantizers
09/04/2003WO2002019533A3 Multi bit delta sigma modulator having linear output
09/02/2003US6614375 Sigma-delta analog-to-digital converter having improved reference multiplexer
09/02/2003US6614373 Method and system for sampling a signal using analog-to-digital converters
08/2003
08/28/2003US20030163270 Method for correcting non-linearities of an output signal of an electrical component, particularly a measuring transducer
08/21/2003US20030156051 Sigma-delta digital-to-analog converter
08/21/2003US20030154953 Control device, control method, control unit, and engine control unit
08/19/2003US6608581 Superconductor modulator with very high sampling rate for analog to digital converters
08/19/2003US6608575 Hybrid multi-stage circuit
08/14/2003WO2002027944A3 Digital to analog converter employing sigma-delta loop and feedback dac model
08/14/2003WO2001071922A3 Excess delay compensation in a delta sigma modulator analog-to-digital converter
08/14/2003US20030152161 Digital to analog converter with time dithering to remove audio tones
08/14/2003US20030152057 Temporal alignment of CODEC data with wireless local area network RF slots
08/14/2003US20030152056 Packetized audio data operations in a wireless local area network device
08/14/2003US20030152055 Wireless local area network device supporting enhanced call functions
08/14/2003US20030151534 Analog to digital converter that services voice communications
08/13/2003EP1335544A2 Packetized audio data operations in a wireless local area network device
08/13/2003EP1335543A2 Improved analog to digital converter that services voice communications
08/13/2003EP1335542A2 Temporal alignment of codec data with wireless local area network RF slots
08/13/2003EP1335533A2 Wireless local area network device supporting enhanced call functions
08/13/2003EP1335532A2 Digital to Analog Converter with Time Dithering to Remove Audio Tones
08/13/2003EP1335494A1 Sigma-delta converter with noise suppression
08/12/2003US6606044 Method and apparatus for generating a pulse width modulated signal
08/12/2003US6606043 Method and arrangement for synchronizing a sigma delta-modulator
08/07/2003WO2003065590A2 Electronic circuit with a sigma delta a/d converter
08/07/2003WO2003065587A2 Circuit with a digital to analog converter
08/07/2003US20030149538 Method for self-calibrating a phase integration error in a modulator
08/07/2003US20030146865 Adaptive sigma-delta modulation with one-bit quantization
08/07/2003US20030146862 Method for self-calibrating a frequency of a modulator circuit, and circuit using said method
08/06/2003EP1333583A1 Wide band sigma-delta modulator
08/06/2003EP0914717B1 Digital to analogue and analogue to digital converters
08/05/2003US6603418 High precision, high-speed signal source
07/2003
07/31/2003US20030143864 Fabrication process of a semiconductor integrated circuit device
07/29/2003US6600789 Signal processing method and device
07/24/2003WO2003061136A1 Method and apparatus for generating a pulse width modulated signal
07/24/2003US20030138062 Image reject circuit using sigma-delta conversion
07/23/2003EP1328938A1 Audio signal compression
07/22/2003US6597241 High performance audio transmission channel
07/17/2003WO2003058820A2 Method for interpolating at least two position-dependent, periodic analog signals that are dephased relative each other
07/17/2003US20030132870 Method and apparatus for converting between analog and digital domains using frequency interleaving
07/16/2003EP1048112B1 Sigma-delta-d/a-converter
07/16/2003CN1430333A One-bit digital signal processing device
07/16/2003CN1430223A Digital signal recording device and playback device
07/16/2003CN1114997C Raidio receiver
07/15/2003US6593870 MEMS-based electrically isolated analog-to-digital converter
07/15/2003US6593866 Signal processors
07/15/2003US6593865 Rapid multiplexing analog to digital converter
07/10/2003WO2003056701A1 Transmitter having a sigma-delta modulator with a non-uniform polar quantizer and methods thereof
07/10/2003US20030128144 Method and apparatus for a high-drive current digital-to-analog converter
07/10/2003US20030128143 Optically sampled delta-sigma modulator
07/09/2003EP1325554A2 Non-linear signal correction
07/09/2003EP1078470A4 Recursive multi-bit adc with predictor
07/08/2003US6590943 Radio receiver
07/08/2003US6590512 Developing a desired output sampling rate for oversampled converters
07/03/2003US20030123566 Transmitter having a sigma-delta modulator with a non-uniform polar quantizer and methods thereof
07/03/2003US20030122692 Method and apparatus for generating a pulse width modulated signal
07/02/2003EP1324498A1 A method for self-calibrating a phase integration error in a modulator
07/02/2003EP1324497A1 Method for self-calibrating a frequency of a modulator circuit, and circuit using said method
07/02/2003EP1322969A1 Rf power measurement
07/02/2003CN1113469C Signal processing method and apparatus thereof
07/01/2003US6587063 Four-order sigma-delta modulator
07/01/2003US6587060 Multi-bit monotonic quantizer and linearized delta-sigma modulator based analog-to-digital and digital-to analog conversion
06/2003
06/26/2003WO2003052941A2 Broadband sigma-delta modulator
06/26/2003WO2003052939A2 Sigma delta a/d converter with firdac converter
06/26/2003WO2003052938A2 Sigma-delta converter comprising noise suppression
06/26/2003WO2003052923A2 Frequency-down-converter using sigma-delta modulators
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