The invention relates to circularly polarized (CP) antennas with grating dielectric elements acting as a polarizer to convert a linearly polarized omnidirectional radiation pattern from a monopole antenna to an omnidirectional CP radiation pattern. A prototype with parallelepipeds, having a very wid.....
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The relational database and the XML markup language are the core technologies for enabling data exchange while preserving data persistence, but no complete solution for bridging the two exists as yet. Enterprises currently need to develop software specifically for interfacing these two key technolog.....
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When a 2D image is displayed on a 3D (autostereoscopic) monitor, its resolution is significantly degraded. To overcome this problem, CityU developed an active barrier that converts a 2D display device into a 3D display device. The invention does not involve the design and development of the active b.....
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Heart diseases (mainly coronary heart disease) are the second leading killer disease category in Hong Kong since 1960s. About 12 persons per day died from the coronary heart disease in 2009. Thus, the long-term and efficient measurement of electrocardiography (ECG) for chronic heart disease patients.....
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An innovative solar energy collection apparatus designed for mobile communication devices is proposed in this patent. The apparatus comprises a dual function antenna that simultaneously collect solar energy and facilitate wireless communication. The antennas comprise reflective ground planes and a r.....
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