Electromagnetic Receivers TRIZ Cases

A coherent optical receiver applies opposite skew amounts to digital signals before fast Fourier transform processing.

A differential differencing transimpedance amplifier segments optical signals into independent paths to enhance signal-to-noise ratio.

A coherent optical receiver adjusts carrier phase estimator filter parameters based on measured spectral structure and bandwidth information.

A data receiving apparatus routes signals via a cross point switch to dedicated units.

Detect local oscillator spectral position via pattern matching to resolve measurement precision versus device complexity trade-offs in optical networks.

Frequency mixer combines wavelength division multiplexing signals with a local oscillator to generate a coherent electrical output.

A ball lens replaces expensive lens arrays to separate wavelengths, reducing manufacturing complexity and alignment costs.

A photodetector circuit uses a multi-mode interferometer to distribute light across the diode.

Distinct cavity resonances boost extinction ratio and bandwidth while lowering implementation costs.

A polarization diversity receiver uses a single optical hybrid and four polarization beam splitters to process in-phase and quadrature components.

Optical networks adjust data rates through link margin monitoring, resolving fixed rate limitations and improving traffic granularity.

A transmission unit detects idle states to generate compliant proxy signals for USB LFPS data.

Built-in phase interpolators and feedback loops deskew FPGA transmitters, reducing timing skew without external DACs.

A trans-impedance amplifier adjusts conversion gain using a convergence determination circuit to stabilize output voltage signals.

A coherent optical receiver uses a multi-wavelength local oscillator to detect single-band bursts without tunable lasers.

A coherent receiver estimates chromatic dispersion using frequency domain phase shifts calculated from Fourier transform outputs.

A differentially-balanced photodetector configuration generates a differential electrical signal from mixed optical inputs.

A ring resonator receiver couples orthogonal polarizations into a single photodetector path.

Asymmetric filtering compensates unbounded phase errors to prevent cycle slips and reduce Forward Error Correction overhead.

A target constellation diagram determining method adapts detection regions to signal distribution characteristics in optical receivers.

Dynamic variable resistors adjust resistance values to maintain flat frequency characteristics across varying signal intensities.

A coherent receiver splits signals into orthogonal polarisation components using a polarising beam splitter and 3x3 coupler.

Merges external III-V components into an all-silicon CMOS chip to eliminate off-chip lasers and reduce manufacturing complexity.

Variable gain amplifiers balance photodetector paths to cancel direct detection components and improve common mode rejection ratio.

A digital noise loading system applies synthetic interference to coherent optical receivers to measure signal quality changes in real time.

Optical phase conjugation generates idler signals while complex-valued deep neural networks perform phase recovery on constellation diagrams.

A variable optical attenuator reduces reflective peak amplitude to prevent OTDR saturation and enable accurate insertion loss measurement.

Varying input optical signal power isolates receiver noise from amplified spontaneous emission in coherent receivers.

Stokes parameter-based tap weight updates compensate for polarization mode dispersion and chromatic dispersion in coherent optical receivers.

Frequency shifting separates transmit and receive bands to prevent reflected signal saturation in coherent PON receiver components.

Digital circuitry iteratively corrects angle, magnitude, and delay imbalance without training symbols to maintain signal-to-noise ratio.

Two-stage estimation with Gaussian mixture model reduces bit error rates and lowers device complexity in optical access networks.

A multiplexer combines C-band and L-band optical signals with differential transmission intensities to manage inter-signal stimulated Raman scattering effects.

Residual frequency offset detection calculates average carrier phase differences to refine compensation, reducing noise-induced transmission errors.

Polarization-independent delay interferometers stabilize optical signals by eliminating active calibration needs, reducing system complexity.

A reconfigurable time controller merges a TDC and FPGA to generate output signals with picosecond resolution.

An impedance correcting apparatus determines correction parameters to linearly decrease signal line impedance from a start point to a peak point.

A receiver filters optical signals in the frequency domain while updating coefficients in the time domain.

A dynamic error quantizer tuning system adjusts comparator reference voltages to optimize signal processing in coherent optical communication.

A feedforward noise cancellation device predicts signal samples to eliminate feedback loops.

A reflection structure redirects optical signals from an emitter to a receiver on the device housing.

Segmented optical filters decouple demodulation from regeneration, mitigating fiber nonlinearities and reducing bit error rates.

Single-ended photodetectors AC-couple to a digital signal processor to estimate average power and recover quadrature components.

A dual rate optical receiver uses a channel switching circuit to select between dedicated high-speed and low-speed limiting amplifier data paths.

Nested-loop receiver tracks phase rotation via Fourier transforms of squared absolute values to recover timing from attenuated tones.

A digital delay interferometer compensates phase distortion in coherent optical receivers through adaptive equalization and differential decoding.

Segmented readout circuits process high-frequency signals while masking ambient light interference through time-multiplexed electronic aperture control.