Wayne E Robbins

US Patent:

43216676, Mar 23, 1982

Filed:

Oct 31, 1979

Appl. No.:

6/089799

Inventors:

Wayne E. Robbins - Longmont CO
Paul R. Spivey - Winchester KY
Terence Travis - Boulder CO

Assignee:

International Business Machines Corp. - Armonk NY

International Classification:

G06F 1306

US Classification:

364200

Abstract:

Expandable memory system having add-on modules beginning at fixed address boundaries, e. g. , 2K (K=1024), and having verification and authorization features. A non-volatile memory stores a bit corresponding to each 2K memory boundary. When an add-on program is authorized at a particular boundary address, the corresponding bit is set. The base program checks each bit and, if it is set, reads the first location of the corresponding add-on program. If the data read from the new module matches some reference, e. g. , the boundary address itself, then program control branches to the add-on program. Additional verification features include cyclic redundancy checks of the added code. Alternative operation includes branching to a verified add-on program that tests its own authorization bit which, if reset, causes a branch to the next verified add-on program, and so on.

US Patent:

43172032, Feb 23, 1982

Filed:

Sep 19, 1979

Appl. No.:

6/077064

Inventors:

Anthony J. Botte - Boulder CO
James H. Hubbard - Boulder CO
Wayne E. Robbins - Longmont CO
Paul R. Spivey - Clark County KY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1100
B65H 2960

US Classification:

371 60

Abstract:

Sheet collator apparatus having means for recovery from collating errors. Moving between two adjacent bins without feeding a sheet, feeding two sheets into one bin, or feeding a sheet while the feeder is moving are errors that are detected and corrected. An error is corrected by homing the deflector and repositioning it at the correct bin before restart. The described embodiment includes two collators, i. e. , tandem units.

US Patent:

42131901, Jul 15, 1980

Filed:

Aug 28, 1978

Appl. No.:

5/937396

Inventors:

David E. Finlay - Boulder CO
Wayne E. Robbins - Longmont CO
Terence Travis - Boulder CO

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G03G 1500

US Classification:

364900

Abstract:

A copy production machine controlled by a programmed computer in which the computer control programs include synchronous and asynchronous portions. The asynchronous portions are repetitively executed in loop form for checking operating components and servicing operator control panels. The synchronous portions are executed in timed relation to the operation of the machine. The execution of the programs is coordinated via a set of memory registers accessible by the computer during execution of both program portions.