Abstract: An electronic device able to be operated with a first state and a second state includes a substrate and electronic units. In a top view, the substrate has a first area in the first state and a second area in the second state, and the second area is greater than the first area. The electronic units are disposed on the substrate. The number of the electronic units being in a mode of ON in the second state is greater than that in the first state. The electronic device has a PPA_1 that is defined as a number of the electronic units being in the mode of ON per unit area of the substrate while in the first state, and a PPA_2 that is defined as a number of the electronic units being in the mode of ON per unit area of the substrate while in the second state, 1.5×PPA_1?PPA_2?0.5×PPA_1.

Abstract: An embodiment disclosed a system for collaborative positioning calibration, comprising at least one reference station and at least one client. The reference station uses a known position and a satellite signal transmitted by at least one satellite to compute a pseudo-range difference of the reference station position and the satellite position, and then broadcasts an area calibration data including at least one pseudo-range difference to at least one client. Based on the area calibration data, the client computes at least one pseudo-range calibration data and outputs a calibrated position of global positioning system.

Abstract: A method for distributing workload among a plurality of servers each having a given workload capacity for providing a web service is provided. The method is to be implemented by a master module and includes the steps of: a) for each of the servers, determining a maximum allowable workload that is smaller than the given workload capacity; b) for each of activated one(s) of the servers operating to provide the web service, detecting a current network workload thereof; c) calculating an overall workload equal to a summation of the current network workload(s) detected in step b); and d) deactivating/activating at least one of the servers so as to adjust a number of the activated one(s) of the servers according to the overall workload calculated in step c), the current network workload(s) detected in step b), and the maximum allowable workload(s) of the activated one(s) of the servers.

Abstract: An embodiment disclosed a system for collaborative positioning calibration, comprising at least one reference station and at least one client. The reference station uses a known position and a satellite signal transmitted by at least one satellite to compute a pseudo-range difference of the reference station position and the satellite position, and then broadcasts an area calibration data including at least one pseudo-range difference to at least one client. Based on the area calibration data, the client computes at least one pseudo-range calibration data and outputs a calibrated position of global positioning system.