Abstract: A power dividing and combining device comprising a resonance body, a plurality of circuit boards, an upper cover and a lower cover is provided. The resonance body comprises a solid conductive body, a plurality of first dividing elements, a plurality of second dividing elements, a signal-receiving end and a signal-transmitting end. The solid conductive body has a first surface, a second surface opposite to the first surface, and a plurality of side surfaces connecting the first surface and the second surface. The first dividing elements are disposed on the first surface and separate a plurality of first resonance channels on the first surface. The first resonance channels intersect at a first common region on the first surface. The second dividing elements are disposed on the second surface and separate a plurality of second resonance channels on the second surface. The second resonance channels intersect at a second common region on the second surface.

Abstract: A protective case discloses an electronic device protective casing, comprising the main protective shell body and the universal decorative pattern layer, the said main protective shell body layer has a pattern opening corresponding to the pattern of the universal decorative pattern layer to snugly fit in, and the said decorative pattern layer disposed on the said protective shell body layer via fixed plate. And the said fixed plate area is greater than the said decorative pattern layer. Since the said universal decorative pattern layer and the said protective shell body are manufactured separately, the universal decorative plate will be able to use for different electronic devices, therefore it will reduce the cost to make such case in term of reproduction of molding, and thereby the cost of the electronic device protective case will be as well reduced.

Abstract: A case, including a housing the housing having an access opening for accessing the display panel of an enclosed electronic device, and a transparent protective cover panel having a pivotal connection to the body and an outwardly projecting lip pull formed along an edge thereof opposite the pivotal connection, and the body having an enlargement of the access opening for facilitating opening of the cover panel. Variations include structure for supporting the cover panel in plural predetermined open positions and orientations relative to the housing and for propping up the housing on a supporting surface.