Multiple Carrier Systems TRIZ Cases

A wireless system extracts spatial-temporal data from multipath channels to track object position and speed.

A calibration method adjusts analog I/Q-modulator signals using predetermined compensation coefficients from a lookup table.

A signal processing apparatus generates pre-distortion signals using in-phase and quadrature digital combinations to counteract amplifier non-linearity.

A wireless transceiver uses switch circuits to route signals for in-phase quadrature-phase calibration within a single RF front-end.

Quat-AM transmits four independent signal components over distinct frequency bands, providing up to 8 dB diversity gains against fading.

A time-reversal wireless system focuses signals using location-specific channel information to maximize data rates.

Time-sharing multiplexer routes multiple AC sensor signals to a single A/D converter, reducing circuit size and power consumption.

A multi-phase vector synthesis demodulator uses N mixers to generate phase-shifted carrier signals and zero-force synthesize in-phase and quadrature outputs.

Dynamic transform adaptation adjusts filter parameters across power levels, resolving the trade-off between cancellation performance and system complexity.

A wideband polar transmitter generates modulated intermediate frequency signals for multiple wireless protocols.

A re-configurable broadband RF receiver uses multiple quadrature demodulators and a microcontroller to manage signal processing across wide frequency ranges.

Phase offset modulation applied to Alamouti space-time block coding reduces RF signal dynamic range, enabling cost-effective power amplifiers.

Multiple intermediate frequency modems synthesize wideband signals using narrowband converters to enable bidirectional wireless transmission.

Segmenting the transmit signal into a reference portion and a data portion improves filtering accuracy while maintaining reading range.

Calibrates quadrature modulators using sideband signal power measurements to determine gain and phase correction parameters.

A wireless transceiver injects a calibration tone into the transmit path and couples the response to receive data paths using capacitive coupling.

A modulation processor generates phase and frequency signals to produce output suitable for polar architectures.

A demodulation circuit computes approximate square roots using fixed-point arithmetic and sector-specific linear formulas to simplify hardware.

Auxiliary mixers combine partial outputs with conventional I and Q mixer signals to perform duplex phase imbalance adjustment.

Asymmetric spiral waveforms provide noise resistance and enable reference signals to carry traffic data, eliminating overhead.

Transceiver measures distortion energy to generate correction factors, eliminating I/Q mismatch and LO leakage in wireless networks.

IR-OFDM relocates the IFFT module to the receiver side, reducing peak-to-average power ratio while resisting disguised jamming attacks.

Base station determines downlink parameters using highest order modulation scheme reported by user equipment to optimize spectral efficiency.

A non-linear filter demodulator translates in-phase and quadrature components into phase and frequency domain signals.

Transpositional modulation shifts signals to sidebands within a carrier spectrum, combining data streams without expanding bandwidth.

Asymmetric QAM constellations remove corner points to reduce susceptibility to phase noise and polarization crosstalk in optical links.

A pre-distorter compensates for digital-to-analog converter distortion by dynamically reconfiguring based on detected active channels.

Embeds a spread spectrum meta-carrier within an original signal to identify rogue carriers and locate interference sources.

Non-Gray bit mapping in 8QAM constellations increases distance between weak coding neighbors, reducing bit-error-rate without iterative processing complexity.

A transmitter compensator uses calibration memory to generate discrete test signals for I/Q modulator adjustment.

A processing unit selects non-orthogonal constellation segments to calculate coordinates for digital-to-analog converter cells.

Sum-signal demodulation modulates amplitude and phase levels to mitigate phase noise degradation in high-frequency 5G wireless communication.

A microwave transmitter controller determines optimal adjustment parameters for multiple I/Q signals using shared correction modules.

Zero cross detection verifies signal presence against noise interference to improve channel scan speed.

Phase-correction circuitry aligns in-phase and quadrature local oscillator signals to 90 degrees, reducing intermodulation distortion.

An IQ modulator calibration method adjusts control values using iterative feedback loops to align transmitted signals with desired constellation points.

A digital cancellation circuit generates opposing distortion terms to subtract third-order intermodulation artifacts from input signals.

A software receiver correlates signal slices with reference sine and cosine values to generate two-tuples for frequency detection.

A signal processing system identifies a common gain value among data elements to adjust constellation points.

Decentralized encryption at local sites reduces computational burden on hubs and minimizes re-encryption time during key compromises.

A gateway device converts packetized data assets to non-packetized formats for transmission via non-packet switched networks.

A modulation scheme configures states to allow message recovery despite signal collisions.

A demapper applies per-symbol offsets to signal subsets to correct non-linear distortions in digital communication receivers.

Phase-shifting modules generate shifted signals to correct I/Q mismatches, reducing bit errors in high-speed wireless communications.

IQ lookup tables estimate harmonic interference via complex multiplication, reducing silicon footprint and power consumption compared to polynomial models.

Arranging constellation points on concentric squares minimizes peak-to-average power ratio in one dimension while maintaining noise sensitivity.

Segmented tri-state architecture defines compensation function via metallization to improve transfer response linearity while minimizing substrate area.

A constellation mapping system uses a vector processor and quadrant selector to combine transformed 16-QAM symbol vectors with offset vectors.

Digital baseband optical transmission converts electrical signals to light for robust long-distance delivery.