1
Robert B Watrous: Transducer suspension mount apparatus. International Business Machines Corporation, James A Pershon, September 11, 1979: US04167765 (129 worldwide citation)

A magnetic head/arm assembly has a suspension for an air bearing head slider that includes a single piece substantially rectangular flexure with two parallel flexible narrow fingers, a relatively stiff cross leg, and a central finger to which the slider is attached. A combined load beam-spring eleme ...


2
Glen G Langdon Jr, Neil H MacLean Jr, Robert W Miller, Mayank R Patel: Data compression for recording on a record medium. International Business Machines Corporation, James A Pershon, March 17, 1992: US05097261 (117 worldwide citation)

A tape drive system includes a compaction scheme whereby the data to be stored on the media is encoded and formatted to take less space along the tape length. The data to be written to tape is placed into equal byte lengths or sets. The sets of data are directed to a plurality of encoders in turn an ...


3
Michael H Hartung, Arthur H Nolta, David G Reed, Gerald E Tayler: Load balancing in a multiunit system. International Business Machines Corporation, Herbert F Somermeyer, James A Pershon, George E Clark, December 30, 1986: US04633387 (115 worldwide citation)

In a multiunit data processing system, such as a multicontrol unit peripheral data storage system, a least busy one of the units requests work to be done from a busier unit. The busier unit, a work sending unit, supplies work to the work requesting or least busy unit. Work thresholds in the respecti ...


4
Michael H Hartung, Gerald E Tayler: Method and apparatus for grouping asynchronous recording operations. International Business Machines Corporation, H F Somermeyer, James A Pershon, George E Clark, January 13, 1987: US04636946 (106 worldwide citation)

The disclosure relates to demotion of data to a backing store (disk storage apparatus--DASD) from a random access cache in a peripheral data storage system. A cache replacement control list, such as a least recently used (LRU) list is scanned in a soon-to-be replaced first portion (portion closest t ...


5
Robert B Watrous: Transducer suspension mount apparatus. International Business Machines Corporation, James A Pershon, January 6, 1976: US03931641 (101 worldwide citation)

A magnetic head arm assembly has a suspension for an air bearing head slider that includes a substantially rectangular flexure with two parallel flexible narrow fingers and relatively stiff crosslegs, and a central finger to which the slider is attached. A load beam is fastened to the flexure so as ...


6
Neil H MacLean Jr, William F Micka, Robert W Miller, Mayank R Patel: Data integrity for compaction devices. International Business Machines Corporation, James A Pershon, November 24, 1992: US05167034 (98 worldwide citation)

A plurality of parallel compression/decompression units can be tied together to sequentially process equal amounts or sets of data from a stream of data. Hardware in the upper level of each device acts as a demultiplexer to control the acceptance of only its set of data to transfer control to permit ...


7
Robert D Clifton, Richard F Phares: Method and apparatus for assigning data sets to virtual volumes in a mass store. International Business Machines Corporation, James A Pershon, Herbert F Somermeyer, January 12, 1982: US04310883 (97 worldwide citation)

In a mass storage system having a multiplicity of storage volumes containing addressable data, the assignment of newly received data sets to the best storage volume is accomplished by determining the best match of the data set to the available volumes. Such selection enables maximum storage use of e ...


8
Vickie Lynn Brewer, James Arthur Fisher, Frank David Gallo, Timothy Clyde Sample: Method and article of manufacture for inserting volumes for import into a virtual tape server. International Business Machines Corporation, James A Pershon, Robert M Sullivan, January 1, 2002: US06336163 (74 worldwide citation)

In an automated retrieval library with virtual storage for identifying particular cartridges in the library to protect the data in the virtual volume from overwriting in import and export operations. A convenience input/output station is set to an import mode with export/import virtual tape servers. ...


9
Thomas H Morrin II: Image data resolution change apparatus and process utilizing boundary compression coding of objects. International Business Machines Corporation, James A Pershon, November 7, 1978: US04124871 (67 worldwide citation)

Resolution or size changing of scanned objects can be accomplished on contour coded data using the information obtained in the boundary following of exterior and interior borders of objects. The compressed boundary following data has its resolution changed by scale factor multiplying after decoding. ...


10
Robert P Zammit: Method of lapping magnetic recording heads. International Business Machines Corporation, Manny W Schecter, James A Pershon, November 19, 1991: US05065483 (62 worldwide citation)

A thin film magnetic head and a method for making the thin film head by the use of electrical lapping guides includes the use of a resistive lapping guide that has a height dimension and an electrical resistance that optimizes the results of the comparison of the resistive lapping guide to a finishe ...



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