William Jesse Miller
Anesthesiologist Assistant at Baker St, Costa Mesa, CA

4414593, Nov 8, 1983

Oct 8, 1981

6/309573

William R. Miller - Costa Mesa CA
Jones V. Howell - Costa Mesa CA

Archive Corporation - Costa Mesa CA

G11B 2108, G11B 556, G11B 558, G11B 2124

360102

The following specification discloses a streaming cartridge tape drive, wherein magnetic tape in a cartridge is driven over a magnetic head for purposes of recording and reading information magnetically on the tape. The information is written onto the tape and subsequently read and checked in a continuous streaming manner to assure the correctness thereof. The tape is driven over the first channel of the head in one direction wherein a write and read head on one portion of the tape effectively writes and reads the information imparted thereto. The tape is returned in the other direction over a second channel of the write and read head which respectively writes and reads the information on the tape as it passes thereover in its return direction. Subsequent thereto, the head is moved laterally across the face of the tape to provide for a third and fourth channel, or track, being respectively written and read in the same manner as the previous first and second channels, thereby providing four serpentine tracks. The head, when moving across the face of the tape, is provided with an air cushion so as to avoid tearing, laceration, or attendant damage to the tape surface.

4466027, Aug 14, 1984

Dec 22, 1981

6/333309

Jones V. Howell - Costa Mesa CA
William R. Miller - Costa Mesa CA
William A. Buchan - Newport Beach CA

Archive Corporation - Costa Mesa CA

G11B 547, G11B 555

360 66

The following specification sets forth a digital tape erasure conditioning circuit and system in combination with a tape drive. The tape drive is such that it drives a magnetic digital tape across an erasing and recording head within a streaming cartridge tape drive. Information is written onto the tape and subsequently read and checked in a continuous streaming manner to assure the correctness thereof. The tape is driven with respect to its various channels over write and read head portions of the head and returned in the opposite direction for writing and reading on another channel. In order to provide for multiple channels, the head is moved laterally across the face of the tape and when moved, is provided with an air cushion between the tape and the head to prevent laceration and attendant damage to the tape surface. When the tape is to be erased, an AC erasure takes place as opposed to a DC erasure wherein the media is saturated at only one level as it passes the field of the erase head. The AC erasure is provided by a rapidly alternating field as the tape moves across the head.