Abstract: A signal decomposition system with low-latency empirical mode decomposition and the method of the same decompose an original signal using iterative computations with different directions of data streams. The directions of data stream in computations of odd or even iterations are adjusted for reducing the number of data stream direction reversals. As a result, computing data can be shared and computing time can be saved. The mechanism helps improve the efficiency of signal decompositions.

Abstract: Multi-unit module of portable computer, including a computer housing and a module casing. At least two expansion units are inserted in the module casing as a module. At least one plug is disposed on one side of the module casing and connected to the expansion units. A module insertion slot is disposed on one side of the housing. An inner end of the insertion slot is disposed with at least one socket secured on the main circuit board corresponding to the plug of the module casing, whereby when the module casing is inserted into the insertion slot, the plug is connected with the socket so that the expansion units can be at the same located in the housing and drivingly connected with and controlled by the main circuit board.