Other

Storage Technology Corporation

Bradley E Whitney

Donald F McCarthy

Geoffrey A Hungerford

Mark G Call

Randy A Fout

Patricia G Orban

Leslie A Magor

A life jacket which can be configured into various functional seat cushions for use on airplanes and boats. This life jacket contains one to three sections of various types of cushioning enclosed within water proof covers and connected by flexible hinges which allow the life jacket to be folded into various seat configurations. This life jacket also contains adjustable belts that can be used in the seat configurations or the life jacket configuration to fasten to the user.

Wearable personal floatation boating cushion apparatus

The system for gap positioning optimization in a tape drive takes advantage of the presence of a pair of read heads, located one on either side of the write head, to precisely determine the boundary between the inter-block gap and the data blocks adjoining the inter-block gap. In particular, the servo mechanisms in the tape drive note the location of the boundary between the present data block and the inter-block gap formed a the end of the present data block. When the tape is repositioned between data read/write operations, this servo information is used to identify this boundary to initiate the subsequently received data read/write operation. A predetermined amount of inter-block gap is provided at the end of the data block to ensure that subsequently received data is not written on top of the present data block or the overwriting of the next data record begins at the beginning of the data block. The system for gap positioning optimization in a tape drive activates the upstream read head during the tape acceleration process to sense the location of this boundary. The upstream read head senses the presence of a region devoid of data, indicating the inter-block gap, thereby confirming the location of the boundary with more precision than the servo data indication, and positively verifying before the write operation that the selected block is the one desired.

System for gap positioning optimization in a tape drive

Method and apparatus for temporarily storing multiple data records in a data processing system which includes a host computer, a cache buffer subsystem, and a magnetic tape drive subsystem. A microprocessor, acting in part as a cache manager, directs the transfer of data into and out of a memory in the cache buffer subsystem by setting up a fill address register, a drain address register, and a start of record address register. Through utilization of a CRC byte to detect errors without correction, and a stop bit to locate the end of a record, values of the registers are compared dependent upon whether there is data being filled or drained to properly manage the temporary storage of data within the memory.

Method and apparatus for temporarily storing multiple data records

Growing community of inventors

Lafayette, CO, United States of America

Bradley E Whitney