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)
04/1999
04/29/1999WO1999008378A3 Device for amplifying digital signals
04/28/1999EP0911980A2 Delta-Sigma modulator
04/28/1999EP0911979A2 Audio signal processor
04/22/1999WO1999020004A1 Signal processing method and device
04/22/1999CA2274637A1 Signal processing method and device
04/21/1999EP0910168A1 Delta-sigma pulse width modulator
04/21/1999EP0573472B1 Analogue and digital convertors
04/20/1999US5896101 Wide dynamic range delta sigma A/D converter
04/15/1999WO1999018691A1 Digital phase discrimination based on frequency sampling
04/15/1999WO1999018671A1 Beamformed ultrasonic imager with delta-sigma feedback control
04/15/1999WO1999008388A3 A method for converting an analog input signal into a digital output signal, an arrangement for performing such method and an image sensor comprising such arrangements
04/07/1999EP0906659A1 Oversampled, noise-shaping, mixed-signal processor
04/06/1999US5892473 Switched capacitor digital-analog converter with a decreased harmonic distortion
04/06/1999US5892468 Digital-to-digital conversion using nonuniform sample rates
03/1999
03/31/1999CN1212782A Data processing of Bitstream signal
03/30/1999US5889484 Digital-to-analog converter
03/30/1999US5889483 Mute signal processing circuit for one-bit digital signal
03/30/1999US5889482 Analog-to-digital converter using dither and method for converting analog signals to digital signals
03/25/1999WO1999014860A1 An analog-to-digital converter
03/25/1999WO1999014859A1 A post-filtered δσ for controlling a phase locked loop m odulator
03/25/1999CA2303279A1 An analog-to-digital converter
03/24/1999EP0903863A1 One-bit analog-to-digital converter
03/24/1999EP0903862A1 Double sampled switched capacitor low pass multirate filter of a sigma delta D/A converter
03/23/1999US5886659 On-focal-plane analog-to-digital conversion for current-mode imaging devices
03/18/1999DE19830796A1 Analog to digital convertor
03/17/1999CN1211109A Sigma-Delta modulation circuit
03/11/1999WO1999012264A2 Sigma-delta modulator with improved gain accuracy
03/11/1999WO1998054840A3 Apparatus and method for the reduction of periodic noise in a sigma-delta modulator
03/11/1999WO1998049777A3 Delta modulator
03/10/1999EP0901233A1 Double sampled sigma delta modulator of second order having a semi-bilinear architecture
03/04/1999WO1998056116A3 Data compression and expansion of an in-level information signal
03/03/1999EP0899884A2 D/A converter and delta-sigma D/A converter
03/03/1999EP0832517B1 Hybrid analog-to-digital converter for low power applications, such as use in an implantable medical device
03/03/1999CN1209917A Data compression and expansion of audio signals
03/02/1999US5878077 Apparatus for high-speed simultaneous voice/data communications
03/02/1999US5877716 Word length convertor
02/1999
02/25/1999WO1999009491A1 Mirror circuitry for noise reduction
02/25/1999WO1998053555A3 Digital to analogue and analogue to digital converters
02/24/1999EP0898375A2 Electronic sampling circuit
02/24/1999EP0897619A1 Switched current delta-sigma modulator
02/18/1999WO1999008389A2 A digital communication device and a mixer
02/18/1999WO1999008388A2 A method for converting an analog input signal into a digital output signal, an arrangement for performing such method and an image sensor comprising such arrangements
02/18/1999WO1999008378A2 Device for amplifying digital signals
02/16/1999US5873058 Voice coding-and-transmission system with silent period elimination
02/15/1999CA2213156A1 One bit digital quadrature vector modulator
02/09/1999US5870048 Oversampling sigma-delta modulator
02/04/1999WO1999005806A1 Method and apparatus for performance improvement by qualifying pulses in an oversampled, noise-shaping signal processor
02/04/1999WO1998049828A3 Synchronous sigma-delta modulator
02/04/1999CA2296251A1 Method and apparatus for performance improvement by qualifying pulses in an oversampled, noise-shaping signal processor
02/03/1999EP0895359A2 Data converter with gain scaling including dither
01/1999
01/21/1999WO1998047233A3 Analog to digital converter comprising a sigma-delta modulator
01/13/1999CN1204895A D/A converter
01/12/1999US5859995 Method and apparatus for coordinating combinatorial logic-clocked state machines
01/12/1999US5859603 Signal processing apparatus and method for sound field processing of ΣΔ modulated digital signal
01/12/1999US5859602 Structures of data compression encoder, decoder, and record carrier
01/07/1999EP0889599A2 Sigma-delta modulator
12/1998
12/30/1998EP0887937A2 Analogue and digital convertors
12/29/1998US5854599 Digital-to-analog conversion with reduced quantization noise
12/17/1998DE19725171A1 Circuit arrangement for converting analogue into digital signal
12/16/1998EP0823154B1 Method and device for transmitting analogue signals by means of a transmission system using optical transmission lines
12/10/1998WO1998056116A2 Data compression and expansion of an in-level information signal
12/10/1998WO1998056115A1 Analogue-to-digital conversion using frequency-modulated input or intermediate values
12/10/1998CA2292615A1 Analogue-to-digital conversion using frequency-modulated input or intermediate values
12/08/1998US5847602 Method and apparatus for linearizing an efficient class D/E power amplifier using delta modulation
12/03/1998WO1998054840A2 Apparatus and method for the reduction of periodic noise in a sigma-delta modulator
12/01/1998US5844514 Analog-to-digital converter and sensor device comprising such a converter
12/01/1998US5844513 Method and apparatus for transmitting sigma delta modulated audio signals
11/1998
11/26/1998WO1998053555A2 Digital to analogue and analogue to digital converters
11/25/1998EP0879465A2 Data processing of a bitstream signal
11/24/1998US5841822 Band-pass sigma-delta converter and commutating filter therefor
11/24/1998US5841388 A/D converter apparatus with frequency conversion function and radio apparatus using the same
11/24/1998US5841386 Simple high resolution monolithic DAC for the tuning of an external VCXO (voltage controlled quartz oscillator)
11/24/1998US5841315 Matched filter circuit
11/17/1998US5838598 Method and apparatus for gain correction of a sigma-delta converter
11/17/1998US5838272 Error correcting sigma-delta modulation decoding
11/17/1998US5838270 Second order and cascaded 2-1 oversampled modulators with improved dynamic range
11/11/1998EP0877522A1 Isolating interface between a telephone line and a digital circuit
11/11/1998EP0877517A2 Output interface for a digital communication system
11/11/1998EP0877514A2 Matched filter
11/11/1998EP0877490A1 Method and device for communication over delta-sigma converters
11/10/1998US5835044 1-Bit A/D converting device with reduced noise component
11/10/1998US5835043 Signal processing apparatus, signal recording apparatus, and signal reproducing apparatus
11/10/1998US5835041 Circuit for conditioning and digitizing an analog signal
11/10/1998US5835038 DC dither circuitry and method for delta-sigma modulator
11/05/1998WO1998049828A2 Synchronous sigma-delta modulator
11/05/1998WO1998049777A2 Delta modulator
11/04/1998EP0875994A1 Delta-sigma pulse width modulator
11/04/1998CN1198039A One-bit digital signal processing
10/1998
10/29/1998WO1998048515A1 Oversampled digital-to-analog converter based on nonlinear separation and linear recombination
10/29/1998CA2286978A1 Oversampled digital-to-analog converter based on nonlinear separation and linear recombination
10/28/1998EP0874499A2 Analog-to-digital converter for digital receiver
10/28/1998EP0874491A2 Signal processing apparatus and method
10/28/1998EP0874466A2 Reed-Solomon decoding circuit and method
10/28/1998EP0874464A1 Delta-sigma converter with low order anti-aliasing filter
10/28/1998EP0874326A2 Noise cancellation in mixed signal environment
10/22/1998WO1998047233A2 Analog to digital converter comprising a sigma-delta modulator
10/15/1998WO1998045946A1 Capacitor array having user-adjustable, manufacturer-trimmable capacitance and method
10/13/1998US5821892 Digital to analog conversion system
10/13/1998US5821891 Second order demodulator for sigma-delta digital to analog converter
10/13/1998US5821890 ΔΣ analog-to-digital converter having built-in variable-gain end
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