Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0<H/(Xn+Tn)<0.8.

Abstract: A microelectromechanical gyroscope system is provided. The system includes a first substrate, a second substrate, and a third substrate. The substrates respectively have a first fixing, a second fixing, and a third fixing surfaces. The system further includes a first sensing, a second sensing and a third sensing module boards respectively fixed to the fixing surfaces. Each sensing module board has several microelectromechanical gyroscopes. A signal processing control board is electrically connected to the first sensing module board, the second sensing module board, and the third sensing module board. Wherein the first substrate, the second substrate, and the third substrate are perpendicular to each other. With the above structure, on each system coordinate axis of the microelectromechanical gyroscope system, at least one gyroscope is aligned with it for data acquisition and measurement. Accordingly, the measurement accuracy of the system is improved.

Abstract: Systems and methods are disclosed for the functional decomposition of the catalog domain and its sub-domains inside a global scale e-commerce system into respective software application services with dedicated data storage, so in order for the complex raw data of different nature or sub-domain that belongs to large catalogs to be easily accessed and read by online stores, it needs to be deciphered and derived by its domain specific computational process then materialized into appropriate real time content that can be directly obtained via software services and APIs by B2C and B2B websites instead having to utilize lots of computational power for every on line store page request to generate necessary real time content from the same raw catalog data that is administered by catalog managers. In the case of data that does not frequently change (i.e.