Automatic Scanning With Simultaneous Frequency Display TRIZ Cases

By shifting a third-order intermodulation product into the assigned channel, this case cuts out-of-band spurs without higher transmitter linearity.

Progressive compression in lateral display regions lets square wireless screens show widescreen video without cropping or black bars.

A primary LO drives a supplemental mixer in diversity mode, replacing the secondary mixer to cut power use and shorten LO signal paths.

A single integrated window and touch layer lets mobile terminals switch key markings by mode while keeping a clean exterior and enabling fast touch input.

Location-based preset groups let a vehicle radio switch to regional stations along a route without manual reprogramming or losing home presets.

A film touch sensor under one integrated window enables mode-changing key marks, clean styling, and fast input across dual displays.

Continuous phase-difference feedback corrects dynamic clock offsets from temperature and power noise, improving jitter tolerance in signal processing.

A 25% duty-cycle LO passive mixer separates differential I/Q paths to cut noise, improve linearity, and enable high-Q RF filtering.

Frequency counters measure VCO-reference offset and adapt tuning steps, cutting PLL calibration time without overshoot.

Buffer and mixer size switches with gain mode to improve receiver linearity when needed while cutting current draw in lower-gain operation.

Successively increasing activation intervals let a DCO shift frequencies more smoothly, reducing FM demodulation glitches, tones, and clicks.

RSSI-driven crystal bias switching cuts spur sensitivity at weak signals while preserving receiver signal-to-noise ratio at strong signals.

A tunable bandpass filter enables fractional division from a narrowband VCO, expanding frequency coverage while lowering phase noise.

Shared transmit and receive analog lines cut baseband-RF pin count and package complexity while preserving loopback testing.

Gradually increasing DCO switching intervals smooth frequency changes, reducing FM demodulation glitches, clicks, and audible tones.

Independent identical mixer-divider pairs set RF output in precise steps while keeping local oscillator leakage proportional to power.

Selective VoIP packet encryption routes subscriber traffic over VPN or open paths to balance security, processing load, and bandwidth.

Mutual coupling between LO buffers corrects phase and amplitude mismatch at high frequency without added calibration area or power.

A multi-region panoramic display uses edge-based compression and scaling to fit widescreen media on square wireless screens without black bars.

Virtual oscillator modeling and temperature-based correction data keep base station timing stable when GPS lock is lost over packet backhaul.

Discrete impedance switching tunes the oscillator near an incoming signal frequency while minimizing clock glitches and circuit complexity.

Double frequency translation applies opposite phase shifts to two antenna channels, enabling wideband phase control and stronger UHF DVB-T reception.