Hitachi, Ltd.

Shigehisa Rokuta

Makoto Kikuchi

Kazuo Shigematsu

Kazunori Uemura

Eiji Moro

Hideharu Ono

Mitsunori Kobayashi

An imaging apparatus is provided which performs optimum zooming and focusing even after long use. The imaging apparatus includes: a lens which is movable along the optical axis; a driving module to drive the lens; a driving amount calculation module to determine a drive count indicating the number of times the driving module has been operated or a drive time for which the driving module has been operated; a storage module to store compensation amounts which are used to compensate for the mechanical play of the driving module according to the drive count or the drive time; and a control module to control the driving module wherein a compensation amount appropriate for the drive count or time determined by the driving amount calculation module is selected from the compensation amounts stored in the storage module and the selected compensation amount is used to compensate for the mechanical play of the driving module.

Imaging apparatus

A surveillance camera apparatus includes a first storage unit for storing a size of pixels configuring a image-sensor, a computation unit for performing a computation using first information, second information, third information, and fourth information to calculate angle information on a plurality of vertex-points, the information stored in the first storage unit being defined as the first information, a focal length of an optical lens being defined as the second information, angle information on an optical axis that passes through a rotation center of the surveillance camera apparatus as the third information, and pixel information corresponding to a plurality of vertex-points that form a region to be masked whose image has been picked up by the image-sensor being defined as the fourth information, and a second storage unit for storing the computation result by the computation unit.

Pan/tilt/zoom surveillance system and method for dynamically adjusting a user defined image picture mask

When a remaining battery power amount of a child appliance is lowered, a battery recharging operation of the child appliance is not quickly carried out, lowering of the remaining battery power amount of the child appliance is displayed on a mother appliance which is owned by a mother. When there is a risk that the remaining battery power amount of the child appliance is lowered and thus operations of the child appliance will be brought into a malfunction condition, a content of a special instruction is stored into a non-volatile memory employed in the child appliance. Otherwise, while the content of the special instruction has been stored in a management server, an operation may be carried out in response to the instructed response after the remaining battery power amount has been recovered to a sufficiently high battery power amount.

Growing community of inventors

Mito, Japan

Shigehisa Rokuta