Matsushita Electric Works, Ltd.

Tsunehiro Anzai

Hirohisa Tanaka

Toshiya Kimura

Norimasa Kaji

Kazuhiko Inoue

Masakazu Nishikawa

Nobuhiko Kimura

Hiroaki Hayashi

Toshihiro Izushima

Kazuhisa Fujii

A memory card socket structure includes an arm rotatably moved by an insertion and an extraction of a memory card into and from a card compartment and a memory card detecting function for detecting whether the memory card is inserted into the card compartment. The arm includes a main portion to be in contact with the memory card and a sub portion disposed opposite to the main portion with respect to a rotation shaft thereof, and is located at a rear side of the card compartment. The arm is engaged with a torsion spring whose first end portion is engaged with a first stationary contact but whose second end portion is engaged with the sub portion, whereby the main portion is biased by the spring toward an entrance of the card compartment.

Memory card socket structure

A memory card socket structure includes a case having a card accommodating portion for receiving a thin plate-shaped memory card, and a contact block having contact terminals to be brought into contact with terminals of the memory card. The case has a cover shell and a base shell both formed of metal plates, and the cover shell and the base shell are welded to each other by a laser welding.

A memory card socket structure includes a base shell and a cover shell adapted to face a top and a bottom surface of a memory card, a contact block disposed in a rear side of a card compartment formed by the base shell and the cover shell, and a plurality of contact terminals fixed at the contact block and extended from the contact block toward an opening side of the card compartment to be in contact with terminals of the memory card. The plurality of contact terminals have at least one shorter terminal and at least one longer terminal, the support position at which said at least one longer terminal is supported by the base shell being closer to the opening side of the card compartment than the support position at which said at least one shorter terminal is supported by the contact block.

A memory card socket structure includes a card compartment for allowing a memory card to be inserted thereinto or taken out therefrom, a contact block disposed at a rear side of the card compartment, a slider moved back and forth between a position near the opening side and a position near the rear side in the card compartment along with an insertion and extraction of the memory card, a coil spring for pressing the slider toward the opening side of the card compartment, and a spring guide fixed at the contact block and elongated toward the opening side of the card compartment to be inserted through the coil spring. The spring guide includes a base end portion provided with a connection portion to be adjoined to the circuit board.

A high frequency signal switching unit includes a printed circuit board accommodated in the casing and having a ground layer formed on substantially one entire surface thereof. Input and output terminals are mounted on the casing, and a high frequency relay is mounted on the printed circuit board for switching between the input terminal and the output terminal. The high frequency relay has a plurality of relay contact terminals and a grounding terminal. A plurality of coaxial cables having respective internal and external conductors connect the input and output terminals to the relay contact terminals. The grounding terminal of the high frequency relay and the external conductors of the coaxial cables are connected to the ground layer of the printed circuit board, while each of the internal conductors of the coaxial cables is connected to one of the relay contact terminals of the high frequency relay.

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Watarai, Japan

Tsunehiro Anzai