Sony Corporation

Ryuzo Tamayama

Kiyoshi Omori

Koichi Numata

A system reproducing surround phonic sound is simply constructed by a multichannel acoustic signal reproducing apparatus having at least a DVD reproducing section. A DVD, a CD, a radio or the like and speakers are provided integrally with the multichannel acoustic signal reproducing apparatus and the integral system is made movable. The acoustic signal reproducing apparatus is connected to a television receiver by an IEEE1394 interface or a USB interface. Speakers of the television receiver are used as main speakers and the speakers of a multichannel acoustic signal reproducing apparatus main body are used as sub-speakers such as rear speakers. The main speakers are controllable from the main body side.

Multichannel acoustic signal reproducing apparatus

Disclosed is a disk device which can avoid as far as possible dirt and dust from being sucked into a disk device body together with open air. An intake port is formed in a front panel of a disk device body along a lower edge of a tray entrance/exit opening. An intake passage formed between printed boards in the disk device body and a lower cover thereof is communicated at a front end thereof with the intake port. A discharge port opened to the outside of the lower cover is formed in the intake passage.

Disk device

A disk recording and/or reproducing device capable of recording data onto a disk and/or reproducing data recorded on the disk, includes a disk mounting portion for mounting the disk; a chucking portion for chucking the disk in cooperation with the disk mounting portion, the chucking portion having a disk engaging portion for engaging the disk at the start of disk loading; and a slider for supporting the chucking portion and moving the chucking portion in a radial direction of the disk between a chucking position where the disk is allowed to be chucked and a loading position where the disk loading is allowed to be started. With this arrangement, the device can be reduced in thickness.

Disk recording and/or reproducing device, disk loading mechanism, and disk eject mechanism

An optical encoder for a disc apparatus having a head arm to record and reproduce a disc-shaped recording medium, a scale swung together with the head arm, a reticle and a light sensitive element disposed on one side of the scale, and a light emitting element disposed on the other side of the scale. The phases of slit patterns in the reticle and light receiving portions of the light sensitive element opposed thereto are each divided into halves, and the divided phases are distributed symmetrically on the opposite sides of the reticle center in the directions of swing motion of the scale. And the same distributed phases of the light receiving portions are individually connected to each other, thereby eliminating the phase deviation of the detection output that results from temperature fluctuation and so forth.

Growing community of inventors

Kanagawa, Japan

Ryuzo Tamayama