Trigometric Functions TRIZ Cases
- Vehicle Combination Drag Prediction Under Crosswind Shape Changes
Predict drag area after trailer or shape changes by rescaling projected area versus air-attack angle, avoiding repeated wind tunnel tests.
- Vehicle Combination Drag Prediction Using Projected Area Rescaling
Projected area rescaling predicts vehicle combination drag under shape changes and crosswind angles without new wind tunnel tests.
- Frequency Response Measurement Using Multi-Sine and Sweep Switching
Switching between multi-sine and sweep signals by Nyquist region cuts measurement time while preserving accurate gain and phase data.
- Drawing-Tool Curve Fitting With Tangent Arcs for CNC Splines
Sectional tangent-arc fitting automates complex CNC spline curves, improving fitting accuracy while reducing manual operations and errors.
- Flexible PWM Sine Wave Generator for Low-Power Resolver Signals
A DDS-based flexible PWM timer generates resolver sine signals with adjustable frequency while cutting die size, latency, and power use.
- Function Approximation Circuitry Using LUT Interpolation
Interpolated LUT addressing approximates non-linear functions with less memory, lower power use, and a smaller circuit footprint.
- Associative Memory CORDIC with LUT for Parallel Sin/Cos
A LUT precomputes early CORDIC steps, then associative memory runs remaining iterations in parallel to speed multi-angle sin/cos calculation.
- Dot Product Circuit for Trigonometric Function Calculation
A four-element dot product circuit computes the argument t = x/π using reciprocal multiplication and shifting stages.
- Tanh and Sigmoid Function Execution via Hardware Instructions
Dedicated math instructions accelerate tanh and sigmoid activation functions using piecewise quadratic interpolation for high throughput.
- Trigonometric Function Calculation in Integrated Circuits
Segmented CORDIC iterations with trigonometric identities resolve small angle inaccuracies while reducing FPGA hardware complexity.
- Numerical Control Device Frequency Characteristic Calculation
Phase-shifted sinusoidal signals excite the control loop, enabling precise high-frequency characteristic calculation despite Nyquist sampling constraints.
- Floating-Point Function Replacement Construct for Fixed-Point Code Generation
A replacement construct converts floating-point functions into fixed-point program code for hardware description language execution.
- Linear Discrete-Time Oscillator Signal Synthesis
A linear discrete-time oscillator synthesizes oscillating signals with programmable frequency, gain, and phase characteristics.