Panasonic Corporation

Sanyo Electric Co., Ltd.

Yasunari Mizoguchi

Shoichi Toya

Kyozo Terao

Eiji Satsuma

Yasuhiro Yamada

Masami Ikeda

Toshiki Nakasho

Akimasa Tamano

Mahito Tuji

In a battery charger cradle, a battery incorporated in a battery built-in device is charged by electric power induced to an induction coil. The cradle includes a primary coil for inducing electromotive force to the induction coil, a casing having a top plate atop of which the battery built-in device is placed, a movement mechanism for moving the primary coil along an inner surface of the top plate, and a position detection controller for detecting a position of the battery built-in device placed on the top plate and controlling the movement mechanism to bring the primary coil closer to the induction coil in the battery built-in device. When the battery built-in device is placed on the top plate, the position detection controller detects the position of the battery built-in device, and the movement mechanism moves the primary coil closer to the induction coil in the battery built-in device.

Battery charger cradle

Mobile electronic equipment incorporating an induction coil and a battery; and a battery charger cradle for recharging the battery in the mobile electronic equipment. Regarding the charger cradle, a bottom surface of a mounting portion is curved in a U-grooved shape, and a primary coil is incorporated inside the U-grooved bottom surface, with the primary coil being connected to a power source. Regarding the mobile equipment, its rear surface placed on the mounting portion of the charger cradle is curved to match with the U-grooved bottom surface, and the induction coil is incorporated inside the curved rear surface. When the mobile equipment is placed on the mounting portion of the charger cradle, the electric power is carried from the primary coil to the induction coil which are electromagnetically coupled with each other, and the battery in the mobile equipment is recharged by the electric power induced to the induction coil.

Mobile electronic equipment and battery charger cradle

The intrusion detection system of the invention, in which three pyroelectric detectors are disposed in line with a interval and an adjoining two of the three pyroelectric detectors are electrically connected to cancel electrical charges generated by each pyroelectric detector, detects intrusion of an infrared ray radiating object such as a human body for example by output signals outputted from the adjoining two and the other of the three pyroelectric detectors or by output signals outputted from the pyroelectric detector disposed at the center and adjoining one and output signals outputted from the one disposed at the center and adjoining another one of these pyroelectric detectors, so that precise and secure intrusion detection is possible by reducing erroneous signals generated by those pyroelectric detectors due to variation of the atmospheric temperature and the like.

Intrusion detection system using three pyroelectric sensors

Growing community of inventors

Hyogo, Japan

Yasunari Mizoguchi