John Willard Howard
Land Surveyors in San Jose, CA

4181942, Jan 1, 1980

Mar 31, 1978

5/892243

Richard G. Forster - San Jose CA
John K. Howard - San Jose CA

International Business Machines Corporation - Armonk NY

G06F 912

364200

A special branch instruction used in a computing system serves as a conditional branch or as an unconditional branch as determined by the state of an internal register. This special branch instruction is used for conditional branching within or at the end of a program loop and for unconditional branching outside of such a loop.

4916605, Apr 10, 1990

Aug 31, 1987

7/091406

Brent C. Beardsley - Tucson AZ
Michael D. Canon - San Jose CA
Malcolm C. Easton - San Jose CA
Michael H. Hartung - Tucson AZ
John H. Howard - San Jose CA
Robert H. Vosacek - Tucson AZ

International Business Machines Corporation - Armonk NY

G06F 1300

364200

A technique is described for performing a fast write operation. A host write request, which would normally be serviced by an immediate physical write to a data storage device, is instead written to cache and nonvolatile storage in the data storage device controller. Then, the controller signals the host that the write operation is complete and does not update the physical data storage device until later. A journal log is also used to provide recovery capability in the event of system failure. This technique provides high performance for the units' operation while assuring integrity by keeping two copies of the write operation until the physical update transpires.