Digital Technique Network TRIZ Cases

An equalization circuit corrects phase-path transfer mismatches, enabling cheaper lower-bandwidth ADCs without degrading output signal quality.

A fixed-lag Kalman smoother adapts to non-stationary physiological signals to reduce noise while limiting lag error.

Adaptive decorrelation estimates and subtracts image interference in I/Q down-conversion, reducing calibration needs and improving receiver sensitivity.

Shared lookup results for symmetric FIR coefficients cut table growth and multiplication circuit size while preserving filter processing.

Sub-path fusion and expansion let polyphase filter banks handle rational oversampling with lower computation and power while preserving reconstruction quality.

Matrix decomposition with SVD cuts multipliers and adders in a two-channel quadrature mirror filter bank while preserving frequency response.

Conditional expectation on antenna-array time-frequency data separates mixed signals while preserving support boundaries and noise robustness.

By segmenting histogram time bins, filtering invalid peaks, and selecting the strongest local count, this case improves depth ranging accuracy.

A lookup-table and SGD approach adapts FIR preset coefficients to cut ISI and bit errors when preset sequences are hard to optimize.

By rotating the time-frequency plane with FrFT, this case reveals weak RF signals hidden by noise and interference in congested environments.

Regression-based feedforward filter tuning accounts for the feedback path to deliver stable, accurate transparency response in audio devices.

A three-filter DSP SERDES architecture cuts long-reach ISI and reflections while enabling fast timing recovery with lower tap count, power, and area.

Sequential FIR tap switching shifts the low-pass cutoff between 20 Hz and 50 Hz to remove environmental noise while preserving the QRS-wave.

Shared-clock digital filtering replaces analogue filters in lithography sensor channels, enabling higher sampling rates with less aliasing.

Improved alias term minimization cuts aliasing in subband spectral envelope adjustment while preserving low delay and near-perfect reconstruction.

A two-stage grouped resampling flow cuts filter tap and memory load by using cache-fit phase-shifted intermediate filtering.

A Prism network with recursive sliding-window FIR filtering tracks sinusoidal amplitude, frequency, and phase accurately in noisy short-window signals.

Complex subband filters approximate non-uniform HRTF filtering with better frequency resolution, phase accuracy, and lower computation.

Neural networks refine Kalman filter signals and covariance estimates to suppress nonlinear acoustic howling with lower distortion in real time.

Precomputed inverse multipliers replace divider hardware in average pooling, enabling any divisor without increasing neural network circuit scale.

Programmable MAC pipelines let FIR filters change taps and active accumulators in situ, improving image filtering flexibility and efficiency.

Offline merging of multiple sound-effect filters into a FIR-IIR network cuts real-time DSP load while preserving in-vehicle audio effects.

A common gain element merges adjacent FIR and IIR gain stages to cut quantization errors, improve SNR, and use bitwidth more efficiently.

Filter-based frequency partitioning lets multiple DACs generate a wideband analog signal with fewer spurs and less timing error.

FPGA or ASIC FIR units switch PAM tap values within 1 μs, expanding tap count without bulky hardware switches.

Time-multiplexed image shifts on a spatial light modulator suppress noise and aliasing without the power drain of digital FIR filtering.

Multiple I2S stereo inputs are merged into a TDM stream through digital sample rate conversion, cutting pin count while preserving audio quality.

Using FET-based resistor and capacitor functions, this polyphase filter cuts phase and amplitude spread across process corners.

Fade and time-reverse impulse responses to cut audio filterbank latency while preserving low-frequency resolution and filter accuracy.

Parallel cosine and sine Prism filters improve stopband attenuation and dynamic response while lowering memory use and computational cost.

A configurable QMF filter bank changes channel counts to match output sample rates, cutting resampling overhead and signal distortion.

Parallel Farrow fractional delay filtering reduces radar simulation distortion when sample rates exceed processing clock speed.

Multiple Prism filters in parallel improve stopband attenuation and dynamic response while lowering memory use for input signal tracking.

A common gain element merges opposite bitshifts in digital filter chains to cut quantization error and improve SNR and bitwidth use.

Configurable comparators and crossbar-linked logic reuse frame-match results to classify diverse protocols with less silicon and power.

Computes analog signal energy from request pulses and delayed filtering, cutting power use while preserving accuracy in sparse signals.

An asymmetric prototype filter cuts aliasing and passband ripple in oversampled low-delay filter banks while preserving band separation.

A single reconfigurable filter uses input and output multiplexing to process different data rates with low latency and lower hardware cost.

A resonator and phase shifter hybrid adds transmission and reflection zeros to improve wideband frequency extraction with lower insertion loss.

An asymmetric prototype filter and IATM design cut aliasing and delay while preserving near-perfect reconstruction after subband adjustment.

A dual-loop feedback filter replaces bulky SAW/BAW parts to tune wideband RF passbands, suppress noise, and support operation beyond 6 GHz.

PRBS-based clock spreading and sample-rate conversion lower DAC image peaks in RF transmitters without higher sampling rates or filter order.

A real-value baseband FIR compensates DAC sin(X)/X roll-off, improving signal quality while cutting coefficients and power use.

Adjustable analysis and synthesis filter bank channels resample codec output with lower complexity, less distortion, and wider hardware compatibility.

Transforms input and filter data inside memory during read cycles, reducing convolution data movement, processing time, and power use.

Selective processing of complex signals and their conjugates cuts digital filter power use and heat while preserving filtering completeness.

A switch circuit rearranges registered FIR inputs by count value, cutting continuous register transfers and lowering filter power use.

Configurable filter units cascade to change filter order, data paths, and sampling rates online, cutting redesign time and cost.

Gain-limited FIR equalizer control adjusts a target band precisely while keeping adjacent band amplitude characteristics unchanged.

Phase-shifted differentiator clocks let a delta-sigma ADC filter double output rate at a given OSR while keeping noise low.

An adjustable N-tap filter smooths noisy optical mouse displacement data, reducing zigzag cursor paths at high resolution.

FIR tap adjustment replaces PLL and VCO clock recovery, tracking sampling phase digitally to cut noise, complexity, and power.

Asymmetric prototype filter optimization reduces aliasing during subband modification while keeping delay low for high frequency reconstruction.

QMF-based variable-length subband BRIR filtering reduces multichannel binaural processing load while preserving sound quality in real time.

A CIC-filtered period-counting approach improves frequency resolution without sacrificing sampling rate, helping distinguish close input frequencies.

Separating linear and nonlinear DPD kernels cuts computational load while preserving wireless transmission accuracy and distortion compensation.

Band-specific delay updates and frequency-domain smoothing cut vehicle audio processing load while reducing frequency dips during time alignment.

Repeated reduced-rank FrFT Wiener filtering separates signal-of-interest from interference and noise with much lower MSE in non-stationary conditions.

An asymmetric prototype filter bank cuts aliasing from subband modifications while preserving near-perfect reconstruction at low delay.

Predicted future samples extend the resampling support vector to cut codec delay, avoid audible artifacts, and enable seamless switching.

Shared FIR coefficients and input signals let one calculator handle parallel sampling rate conversion with lower circuit size and cost.

STFT-based phase smoothing corrects per-band audio delay, improving transmission linearity and suppressing crossover peaks and dips.

A reusable register-and-adder architecture filters more input signals without extra hardware, keeping moving-average processing nearly constant.

Varying center and edge tap delays extends FIR impulse response for large channel memory while preserving equalization resolution.

An N-tap digital filter smooths noisy displacement data to reduce zigzag cursor tracks and keep high-resolution navigation stable.

Offset injection compensates for slower coefficient updates in resource-shared adaptive filters, speeding steady-state convergence with lower power.

Transient detection and adaptive block coding reduce pre-echo artifacts in compressed audio bitstreams while preserving sound quality.

Measured channel response is used to tune pre-processing filters that correct frequency-dependent magnitude and phase mismatch in time-interleaved DACs.

Parallel data lanes and reduction units raise ALU throughput while avoiding proportional growth in register width and memory bandwidth.

Weighted digital filtering aligns pumping-current and concentration-signal response speeds to improve NH3, NO2, and NOx computation accuracy.

Dedicated FIR circuits in audio processors cut multi-cycle filtering overhead by executing specific filter instructions in one cycle.

By inverting and truncating prototype filter coefficients, this case shortens FBMC/OQAM filters while preserving SIR and spectral localization.