220999 ⎘
Networks using digital techniques; Frequency selective networks Recursive filters
Sub-classes:Circuit Device And Circuit Device Setting Method
#2RECURSIVE FIR DIGITAL FILTER
#3REDUCING COMB FILTERING FOR HEARING DEVICES
#4Data recovery using gradients
#5EVENT ANALYSIS AND DISPLAY
#6Event analysis and display
#7Genetic-algorithm-based equalization using IIR filters
#8PARALLEL IMPLEMENTATIONS OF FRAME FILTERS WITH RECURSIVE TRANSFER FUNCTIONS
#9Multi-thread power limiting via shared limit
#10Method and system for ultra-narrowband filtering with signal processing using a concept called prism
#11Low pass filter and filter diagnostics
#12Adaptive filter bank for modeling a thermal system
#13Data recovery using subcarriers gradients
#14Non linear filter with group delay at pre-response frequency for high res radio
#15SYSTEM AND METHOD FOR CALIBRATING FILTER MISMATCH IN MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS
#16Frequency encryption for communication signals
#17Apparatus and method for performing digital infinite impulse filtering
#18Low pass filter and filter diagnostics
#19Optical ring circuit with electrical filter
#20Infinite impulse response acoustic echo cancellation in the frequency domain
#21Digital filtering method, corresponding circuit and device
#22Vehicle self-localization using particle filters and visual odometry
#23Comparator error suppression
#24Moving average low-pass filtering device and method
#25Method and apparatus for transmitting and receiving signal for low peak-to-average power ratio in wireless communication system
#26Compensating for the skin effect in a shunt
#27Filter characteristics changing device
#28Current sensing circuit and current sensing assembly including the same
#29Determining motion of a moveable platform
#30Determining an open/close status of a barrier
#31Monitoring an asset using görtzel filters
#32Data recovery from sub-carriers
#33Methods and systems for event-driven recursive continuous-time digital signal processing
#34Determination method and apparatus for preset of audio equalizer (AEQ)
#35Non linear filter with group delay at pre-response frequency for high res audio
#36RECEIVER COUPLED TO AN INFINITE IMPULSE RESPONSE (IIR) COMPENSATION FILTER
#37Digital filter
#38Method for dynamic noise reduction of magnetic field sensor signals and a magnetic field sensor circuit with dynamic noise reduction
#39Image stabilization apparatus and image stabilization method
#40Small area and low power IIR filter structure
#41Methods and devices for switching filters and medical apparatuses using the same
#42Generation of high-rate sinusoidal sequences
#43Enhancing audio using a mobile device
#44Enhancing audio using a mobile device
#45Enhancing audio using a mobile device
#46Multistage IIR Filter and Parallelized Filtering of Data with Same
#47Efficient implementation of cascaded biquads
#48Digital filter device and signal processing method
#49Enhancing audio using a mobile device
#50Generation of high-rate sinusoidal sequences
#51Digital interpolator and method of interpolating
#52Adaptive data recovery
#53Direct synthesis of OFDM receiver clock
#54Data recovery with inverse transformation
#55Multistage IIR filter and parallelized filtering of data with same
#56Multi-stage filter processing device and method
#57Low latency and low complexity phase shift network
#58Adaptive data decoding
#59Direct data recovery
#60OPTIMIZED METHOD OF BIQUAD INFINITE-IMPULSE RESPONSE CALCULATION
#61Multistage IIR filter and parallelized filtering of data with same
#62Cascaded digital filters with reduced latency
#63Infinite impulse response filter architecture with idle-tone reduction
#64Biquad infinite impulse response system transformation
#65Determining coefficients for digital low pass filter given cutoff and boost values for corresponding analog version
#66Read Channel With Oversampled Analog To Digital Conversion And Parallel Data Detectors
#67Inverse signal transformation
#68Data converter circuit and method
#69Motor drive circuit
#70Communication system
#71Multi-input IIR filter with error feedback
#72Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter
#73Digital filter
#74Digital fractional integrator
#75Dynamic filtering device and method thereof
#76SIGNAL FILTERING AND FILTER DESIGN TECHNIQUES
#77Signal processing circuit
#78Method and System For a Pipelined Dual Audio Path Processing Audio Codec
#79Digital optimal filter for periodically alternating signals
#80DC compensation
#81IIR filter for reducing the complexity of multiplying elements
#82Frequency-warped audio equalizer
#83Communication system, phase-locked loop, movable body and communication method
#84Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter and associated calibration circuit
#85DIGITAL FILTER, ITS SYNTHESIZING DEVICE, SYNTHESIZING PROGRAM AND SYNTHESIZING PROGRAM RECORDING MEDIUM
#86Second order real allpass filter
#87METHOD AND SYSTEM FOR FREQUENCY COMPENSATION IN AN AUDIO CODEC
#88SAMPLE RATE CONVERTER
#89Microprocessor performing IIR filter operation with registers
#90FILTER CIRCUIT
#91Self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers
#92Frequency-warped audio equalizer
#93Communication system
#94HIGH PASS FILTER
#95METHOD AND SYSTEM FOR UTILIZING RATE CONVERSION FILTERS TO REDUCE MIXING COMPLEXITY DURING MULTIPATH MULTI-RATE AUDIO PROCESSING
#96Digital low-pass filter
#97Data transformation method and data transformation circuit capable of saving numeral operations
#98Digital Filter
#99Digital high-pass filter for a displacement detection device of a portable apparatus
#100Filtering integrated circuit
#101Filtering apparatus
#102Frequency float method and system for realizing a signal filter
#103Infinite impulse response filter circuit and magnetic disk drive
#104Binary rate multiplier configured to generate accurate coefficients
#105Optimization technique for FIR and IIR filter design
#106Digital filter
#107Digital implementation of a fourth order Linkwitz-Riley network with a low cutoff frequency
#108Digital pulse width modulated controller
#109Digital filter and method thereof using frequency translations
#110Efficient digital filter design tool for approximating an FIR filter with a low-order linear-phase IIR filter
#111Digital filter apparatus and filter processing method thereof
#112FILTER SET FOR FREQUENCY ANALYSIS
#113Filter set for frequency analysis
#114Up-sampling half-band reconstruction filtering
#115Signal generator using IIR type digital filter; and method of generating, supplying, and stopping its output signal
#116Method and filter arrangement for digital recursive filtering in the time domain
#117Mechanism for using the allpass decomposition architecture for the cauer low pass filter used in a BTSC
#118Infinite impulse response multiplierless digital filter architecture
#119Time interleaved ADC adaptive filtering
#120PDM bitstream to PCM data converter using Walsh-Hadamard transform