4results about How to "Flexible coding" patented technology

The invention relates to an on-chip integrated phase coding microwave signal generation system and method. The system comprises a laser, a polarization controller, a first chip end face coupler, a thin film lithium niobate optical chip, a second chip end face coupler, a signal generator, an optical fiber amplifier, an optical fiber isolator, a photoelectric detector and a microwave source. According to the invention, a first-order sideband of a phase modulation optical signal generated by the phase modulator is suppressed through filtering of the electrically tunable micro-ring resonator in the thin-film lithium niobate optical chip. The signal generator applies a periodically coded voltage signal to the electrically tunable micro-ring resonator, the position of a micro-ring harmonic peak is periodically controlled, and high and low levels of the voltage control signal correspond to the distance between two adjacent harmonic peaks of the electrically tunable micro-ring resonator and positive and negative first-order sidebands of the phase modulation optical signal. According to the invention, high-frequency and frequency-adjustable phase-coded microwave signals can be generated, and the system has the advantages of small voltage tuning range, flexible coding and simple system structure.

This invention discloses a method for encoding structured light patterns, a structured light projection module, and a three-dimensional measurement system, belonging to the field of optical measurement. Addressing the problem of fixed and inaccurate structured light encoding units in existing methods, this invention provides a method for encoding structured light patterns. The method divides the structured light pattern into multiple types of grid units, forming a grid encoding group with a predetermined number of consecutively arranged grid units. The grid encoding group is encoded based on the type of each grid unit, ensuring that each grid encoding group has a unique and non-repeating code. The code of the grid encoding group maps to its spatial position within the structured light pattern. Decoding includes acquiring the structured light pattern, determining the type of each grid unit, and matching the grid encoding group with the encoding set to obtain its position. This invention achieves flexible, high-density, and highly occlusion-resistant absolute position encoding by uniquely and non-repeating grid encoding groups composed of multiple consecutive grid units, making it suitable for high-precision three-dimensional measurement.

The invention provides a fan information transmission method and electronic equipment, and relates to the technical field of data processing.The method comprises the steps that a second fan rotating speed square wave signal sent by a fan control chip is received; acquiring the transmission data level signal based on the second fan rotating speed square wave signal, and acquiring the transmitted fan information based on the transmission data level signal; wherein the second fan rotating speed square wave signal is obtained after the fan control chip performs level adjustment on the first fan rotating speed square wave signal based on the transmitted data level signal; the transmission data level signal is determined based on the transmitted fan information; the first fan rotating speed square wave signal is generated by the fan control chip when the fan is in a running state of a target rotating speed, and the target rotating speed is determined based on a data transmission instruction sent to the fan control chip by the substrate management controller.

The invention provides a three-dimensional point cloud coding method and device, a three-dimensional point cloud decoding method and device and electronic equipment, and belongs to the technical field of artificial intelligence. The coding method comprises the following steps: down-sampling an original point cloud according to a down-sampling parameter to obtain a down-sampling point cloud and target information of each point in the down-sampling point cloud, the down-sampling parameter being a non-integer greater than 1; determining neighbor occupation information of each point in the down-sampling point cloud; clustering the down-sampling point clouds according to the down-sampling parameters to obtain a point cloud cluster; training an interpolation network according to the clustering clusters according to the target information and the neighbor occupation information of each point in each point cloud clustering cluster to obtain optimized interpolation network parameters of each clustering cluster; and performing lossless coding on the down-sampling point cloud to obtain down-sampling point cloud coding data, and coding the interpolation network parameters of each cluster to obtain network coding data, so that point cloud coding of fractional down-sampling can be effectively supported, and more flexible and efficient point cloud compression can be realized.