A technique for improving accuracy in an inventory containing assets associated with a network. The bus bridge includes a primary bus interface, a secondary bus interface, a data FIFO, and a register block. The sacks may be made of material which can be disintegrated in mortar or concrete. An adding unit adds the compensated object signal to a composed image of basic depth models to generate depth estimation data for generating an image in a different viewpoint from a non-3D image, the image in the different viewpoint and the non-3D image constituting the pseudo 3D image. The locking mechanism is mainly disposed on the apparatus casing and can be operative to lock or unlock the electronic device casing and the door simultaneously. A method and system of an electronic transaction is provided where the method includes issuing information of a card having a monetary value and applying the monetary value of the card towards a payment for a transaction.