Differential Modulation TRIZ Cases
- Intra Video Coding With Residual DPCM for Screen Content
Residual DPCM with horizontal and vertical prediction cuts screen-content video bandwidth and coding complexity while improving compression.
- Intra Video Residual DPCM Coding for Screen Content Bandwidth
Quantized residual DPCM cuts screen-content redundancy by coding intra prediction residuals more compactly, reducing video bandwidth demand.
- Dual-Quantizer ADC Recombination for Lower Quantization Noise
Adaptive recombination filters in a dual-quantizer ADC cut first-quantizer noise while preserving fast response and a near-unity transfer function.
- Intra Video Coding With Residual DPCM for Lower Bitrate
Residual DPCM and multi-directional intra prediction improve coding efficiency for complex residual blocks while lowering bitrate.
- Split VCO Quantizer in Sigma-Delta Modulators for Simpler DAC Feedback
By splitting M oscillator-phase bits between DAC feedback and digital error correction, this case improves SNR while reducing DAC complexity and power.
- Noise-Shaping Sample Rate Conversion Without Multipliers
Delta-sigma noise shaping converts sample rates without multipliers, cutting power and complexity while improving SNR and alias rejection.
- Multi-Level Charge Transfer DAC With Sequenced Capacitor Switching
Sequenced capacitor switch units generate more DAC output levels with fewer capacitors, improving sigma-delta linearity and lowering power.
- 4n+1 Capacitive DAC Architecture With Paired-Capacitor Linearity
Paired reference capacitors and even/odd switching patterns generate 4n+1 DAC levels while preserving sigma-delta linearity with fewer switches.
- Adaptive Flash Converter Capacitance Reduction for Low Distortion
Dynamic capacitor switching cuts delta-sigma ADC loading at high amplitudes, improving settling time, input stability, and distortion.
- ADC Input Stage With Differential Feedback for Channel Gain Matching
A differential-feedback ADC input stage cuts noise and power while preserving linearity and gain matching across sensor channels.
- Differential DAC Element Matching for Lower Mismatch Noise
Multiple selector signals rotate shared DAC elements to shape mismatch noise while avoiding offset circuitry, cutting thermal noise and area.
- Variable-Resolution Sigma-Delta DAC Dithering for Idle Tone Suppression
Randomly varying quantizer resolution suppresses Sigma-Delta DAC idle tones and improves dynamic range without extra filtering.
- Bandpass Oversampling DAC Architecture for Wideband High Resolution
Parallel bandpass oversampling DAC channels use delta-sigma noise shaping and adaptive bit mapping to widen bandwidth without losing resolution.