Abstract: The present invention provides novel crystalline forms of apremilast hemitoluene solvate, apremilast hydrate, and apremilast anhydrate and an amorphous form of apremilast, and processes for the preparation of these forms.

Abstract: Crystalline forms of pemetrexed diacid are provided (Forms 1 and 2) which are readily produced for either laboratory-scale or industrial scale. Processes for the preparation of Forms 1 and 2 are also provided.

Abstract: An optical touch system comprises a first light-emitting unit, a second light-emitting unit, a first image sensor having a first filter, and a second image sensor having a second filter. The first light-emitting unit generates first wavelength band light. The second light-emitting unit generates second wavelength band light. The first light-emitting unit generates first wavelength band light when the first image sensor is capturing an image. The first filter allows first wavelength band light to enter into the first image sensor and blocks second wavelength band light. The second light-emitting unit generates second wavelength band light when the second image sensor is capturing an image. The second filter allows second wavelength band light to enter into the second image sensor and block first wavelength band light.

Abstract: A device and method for appliance usage scheduling and control using on-line calendar services with open API is disclosed in embodiments of the present invention. The device includes an on-line calendar with open API, a control server and a sensor network. The on-line calendar sets date and time schedule according to a user setting to generate a control data packet corresponding to the schedule. The control server receives the control data packet by an internet and generates at least a control signal according to the control data packet. The sensor network communicates with an electronic appliance by radio frequency and controls actions according to the control signal.