Sony Corporation

Shigeru Saegusa

Takayuki Kaneko

Koji Hirano

Takashi Takano

Susumu Morioka

Harutoshi Yoshimura

Keiichi Nakamura

Sakae Washikawa

Akiomi Suzuki

Masako Sudo

A loop antenna device includes a loop antenna having a high noise resistance performance. In a loop antenna having a shield member covering a looped conductor portion formed in a loop shape from a conductive wire, a non-covered portion where the looped conductor portion is not covered is formed in correspondence with a portion of the conductive wire including a reference position for the symmetry of two terminals for connection between the antenna device and a reception circuit. This provides a balanced shield structure. Besides, a line for connecting one end of the conductive wire to the ground potential and a line for connecting the shield member to the ground potential are individually separate from each other, whereby reception of a voltage fall due to common impedance by the antenna is suppressed.

Antenna device, and method of manufacturing antenna device

Disclosed is a disk adapter for receiving a disk-type recording medium on an inner circumference side thereof, comprising: a main plate portion having a substantially arcuate shape of a central angle of 180&deg; or more; and a supporting portion formed on a half circumference side of the inner circumference of the main plate portion for supporting the disk-type recording medium mounted on the disk adapter. Consequently, mounting and removing operations of a disk-type recording medium onto and from the disk adapter are very simple.

Disk adapter carried away from a mounted disk

An audio signal processing apparatus including a plurality of jack units each of which has at least an audio signal contact piece and a control signal contact piece. A control circuit judges a kind of an audio appliance connected to each of the plurality of jack units based on a control signal obtained at the control signal contact piece, and when a function change-over command to select any one of the audio appliances is supplied, a function selecting circuit selects one of the jack units to which the audio appliance is connected. An audio appliance can be connected to any of the plurality of jack units.

Audio signal processing apparatus

Growing community of inventors

Tokyo, Japan

Shigeru Saegusa