4results about How to "Maintain compatibility" patented technology

The present application belongs to the technical field of networked converter control, and discloses a networked converter control method, system, device and medium based on network side information feedback to solve the problem of subsynchronous oscillation. The method comprises: collecting voltage signals of a grid side point of common connection and voltage signals and current signals of a converter side; calculating steady-state active power and steady-state reactive power based on the voltage signals of the grid side point of common connection and line impedance parameters; calculating transient active power and transient reactive power based on the voltage signals and current signals of the converter side; introducing a composite factor to fuse the steady-state active power and the transient active power to obtain composite active and reactive power; and inputting the composite active and reactive power to a power outer loop controller of the networked converter to generate a reference signal for inner loop control. The present application improves system damping and the ability to suppress subsynchronous oscillation.

This application relates to a method, apparatus, device, and storage medium for short-time audio speaker recognition. The method includes: acquiring speech features of all speech frames in a short-time audio stream, filtering all speech features to generate an effective speech feature map; sequentially fusing the effective speech feature map with local features from different frequency bands several times to obtain local fused features for different frequency bands; performing staged global fusion based on the local fused features of each frequency band except for the low-frequency band to obtain a global fused feature; inferring a speech vector based on the global fused feature, and comparing the speech vector with a registered vector in a registered sound database to identify the speaker's identity. This method improves the accuracy of short-time audio speaker recognition without compromising the core architecture of the model, while maintaining lightweight design and deployment compatibility.

This invention provides a quantum cascade laser and its fabrication method. The quantum cascade laser includes an active layer, which comprises multiple first sub-active layer units to the Mth sub-active layer units stacked sequentially in a first direction, where M is an integer greater than or equal to 2. Any mth sub-active layer unit includes W lower mth sub-active layers and W upper mth sub-active layers, with the lower mth sub-active layers and upper mth sub-active layers stacked alternately in the first direction, where m is an integer greater than or equal to 1 and less than or equal to M, and W is an integer greater than or equal to 2. Any mth sub-active layer unit with alternating stacked Q... m1 The m-th sub-active layer and Q m2 The m-th active layer contains doped ions; where Q m1 Q is an integer greater than or equal to 1 and less than W. m2 It is an integer greater than or equal to 1 and less than W; the doping concentration of the doped ion first increases and then decreases as the value of m increases.

In the present invention, a user equipment (UE) receives an UL grant that can be used while the UE is not in RRC_CONNECTED state. If the UE receives a message indicating to leave RRC_CONNECTED state, the UE starts a time alignment timer (I-TAT) when the UE leaves RRC_CONNECTED state. The UE transmits UL data using the UL grant if the UL data becomes available for transmission when the UE is not in RRC_CONNECTED state and if the I-TAT is running.