Steven L Kaczeus Sr, Thomas McKnight, Roy J Edwards: Hot-swappable multi-cartridge docking module. TEAC Corporation, Pont Peripherals Corporation, January 9, 1996: US05483419 (150 worldwide citation)

A docking module for removable disk drives provides, in one embodiment, space for two such disk drives within a standard half-height bay. The docking module provides cammed insertion and removal together with hot swappability of disk drives. The bay is provided within a housing member. A door is rot ...

Steven M Pope: Peripheral device control system using changeable firmware in a single flash memory. Teac Corporation, DZU Corporation, Brinks Hofer Gilson & Lione, January 21, 1997: US05596738 (128 worldwide citation)

A peripheral device control system includes a single flash memory having a changeable portion for storing firmware for controlling the peripheral device and a preprogrammed portion containing control code. When it is desired to modify the changeable firmware, the control code is read from the flash ...

Minoru Ozaki, Kyosuke Yoshimoto, Hiroyuki Onda, Koji Yamana, Takuya Nagata, Hidehiko Murata, Yutaka Kobayashi: Method for rewriting defect management areas on optical disk according to ECMA standard. Mitsubishi Electric Corporation, Teac Corporation, Andrus Sceales Starke & Sawall, June 7, 1994: US05319626 (109 worldwide citation)

A method for rewriting four defect management areas on an optical disk according to an ECMA standard is performed by means of deleting an old data which has been recorded on the respective defect management areas and then sequentially writing down a new data on respective defect management areas.

Hiroshi Tsuyuguchi: Apparatus for selective retrieval of information streams or items. Teac Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, March 23, 1982: US04321635 (103 worldwide citation)

A video disc player for use with a record disc having recorded along a spiral track thereon a succession of information streams to be reproduced and a series of addresses identifying the successive turns of the track. Also recorded on the record disc, prior to the information streams, is an index li ...

Akinori Mawatari, Hirohisa Yamaguchi, Kenji Nakamura, Satoshi Uchiumi: PCM Recording and reproducing method providing for dropout compensation. TEAC Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, September 23, 1980: US04224642 (63 worldwide citation)

For recording and reproducing analog audio signals by a pulse-code modulation scheme so as to permit effective compensation for dropout errors, an incoming audio signal is sampled, and the analog samples are converted into a sequence of coded pulse groups or words. These words are grouped into succe ...

Tohru Miura, Hiroshi Tsuyuguchi: Power saving system for rotating disk data storage apparatus. Teac Corporation, Woodcock Washburn Kurtz Mackiewicz & Norris, April 18, 1995: US05408369 (50 worldwide citation)

A power saving system for a flexible magnetic disk drive utilizes a power save signal supplied from a host system. When the power save signal indicates that the disk drive is standing by, a power saving circuit holds unpowered desired components of the disk drive such as a disk drive motor circuit, ...

Mitsuo Shiba, Yoshio Yahagi: Test disk having defect patterns uniformly distributed in recording areas. TEAC Corporation, Andrus Sceales Starke & Sawall, June 11, 1996: US05526341 (49 worldwide citation)

A test disk having defect patterns uniformly arranged in recording areas is produced by a production method including: producing a stamper having a plurality of data pits in accordance with test data signals recorded on the test disk; radiating laser light to the stamper by using a laser system so t ...

Yasushi Noda, Kenji Shimozawa, Takashi Kamisaka: Optical disc apparatus lens drive apparatus and method for the manufacture of such. Teac Corporation, Michael N Meller, May 28, 1991: US05018836 (48 worldwide citation)

An objective lens drive apparatus includes an objective lens holder supporting an objective lens and provided with drive coils, a base fixing permanent magnets, printed circuit boards fixing the base at a monolithic portion thereof, and a plural number of flexible support members electrically and me ...

Hidetoshi Kabasawa: Disk drive head carriage lock having solenoid within frame of lock member. TEAC Corporation, Eugene Lieberstein, Michael Meller, Anderson Kill & Olick, March 12, 2002: US06356415 (41 worldwide citation)

A head carriage lock mechanism for a magnetic disk drive has a lock member, a lifter, a link member and a solenoid. The lock member is shaped in the form of a quadrilateral frame, with arms extending perpendicularly from a front panel and a rear panel so as to connect the two panels. The right arm o ...

Toshio Karakane, Fujio Nagai, Hikaru Igarashi, Akio Takeda, Hisashi Kuma: Disc housing case. Teac Corporation, Andrus Sceales Starke & Sawall, March 31, 1992: US05099995 (40 worldwide citation)

A disc holder comprises a base member having an engagement portion and a flexible sheet, the base member and the flexible sheet forming a pocket holding an information recording disc. A housing case body comprises a housing member housing the disc holder and a mounting member with which the engageme ...