4results about How to "High tuning accuracy" patented technology

This invention provides a method for measuring the reflection coefficient of an antenna and its user equipment. The method includes the following steps: measuring at least two received signals. Each received signal is measured under a different tuner measurement control word. Multiple tuner scattering parameters and a front-end reflection coefficient at the receiver (Rx) frequency are obtained. These tuner scattering parameters correspond to different tuner measurement control words. The antenna reflection coefficient is calibrated based on the at least two received signals, the tuner scattering parameters, and the front-end reflection coefficient. This innovative method enables closed-loop antenna tuning for all antennas in a mobile device, regardless of their connection to the transmitter (Tx). By utilizing received signals for measurement, this method overcomes the limitations of conventional methods and improves the tuning accuracy and efficiency of mobile antennas.

This invention discloses a tension adjustment and modulation system, device, and method for stringed instruments based on screw drive. The system includes at least one tension adjustment module, each module comprising: a screw drive mechanism that converts rotational motion into linear motion to adjust string tension; a tension sensor positioned in the force transmission path to detect tension values; a drive motor that drives the screw; and a control circuit including a microcontroller and a memory. This invention replaces the traditional rotary winding knob with linear screw drive, eliminating nonlinearity and backlash problems; and replaces audio frequency detection with direct tension measurement. The system supports: one-key recovery—storing the target tension value and adjusting it to the target value in a closed loop after triggering; continuous pitch maintenance—automatically monitoring and fine-tuning to correct drift while powered on; and active tension modulation—actively changing string tension in response to a trigger signal to achieve effects such as pitch bend, string bending, and vibrato. It is applicable to all stringed instruments that rely on string tension to determine pitch.

The application provides a kind of across hardware tensor program's tuning method, device, equipment, medium and product, it is related to compiler optimization and deep learning technical field, this method includes: obtaining tensor program to be tuned and target hardware information;Tensor program to be tuned and target hardware information are input into across hardware tensor program tuning model, obtain the target tuning program of tensor program to be tuned that across hardware tensor program tuning model output;Wherein, across hardware tensor program tuning model is based on tensor program data sample training and obtains, across hardware tensor program tuning model is the model that the running feature of tensor program to be tuned on target hardware information is structured inference in combination with tensor program to be tuned and target hardware information to tensor program to be tuned.This technical scheme of the application is based on across hardware tensor program tuning model and directly carries out structured inference to the running feature of tensor program to be tuned on target hardware information, obtains target tuning program, improves the accuracy of target tuning program.

This invention discloses a fully digitally controlled programmable Ti:sapphire femtosecond oscillator carrier envelope offset frequency locking device, comprising an avalanche photodetector, a power divider, a first RF conditioning circuit, a second RF conditioning circuit, a frequency and phase discrimination circuit, a programmable proportional circuit, a programmable integral circuit, a programmable bias circuit, an inverting summation circuit, a programmable limiting circuit, an anti-saturation integral circuit, an output buffer circuit, a main control circuit, and a host computer. This invention enables the carrier envelope offset frequency to be locked to the repetition frequency. Employing a fully digitally controlled programmable PI circuit, combined with innovative anti-saturation integral and output limiting functions, it offers advantages such as low latency, high precision, high stability, and high security.