Bernie R Marasco

US Patent:

54105463, Apr 25, 1995

Filed:

Nov 1, 1993

Appl. No.:

8/146531

Inventors:

Keith G. Boyer - Northglenn CO
Kenneth R. Burns - Bloomington MN
Thomas H. Gohl - Westminster CO
Terry R. Gottehrer - Louisville CO
Bernie R. Marasco - Lafayette CO
Michael R. Stephens - Westminster CO
Robert D. Thompson - Loveland CO

Assignee:

Storage Technology Corporation - Louisville CO

International Classification:

G06F 1110

US Classification:

371 371

Abstract:

The present invention discloses a method and apparatus for computing CRC codes for fixed length page buffers of user data where the user data arrives from a transmission device in variable length packets with the packet contents being out of sequential order. The received data is written to a storage device after being restored to the correct sequential order. The data packets are comprised of a header portion and a data portion. The transmission and compression methods commonly employed by the transmission device dictates that the header portion of each packet follows the data portion. The present invention computes a complete CRC code for the data stored in a page buffer in real time as the packets are received by using several registers for saving intermediate CRC codes and circuitry to combine partial CRC codes for those packet portions received out of order. Additional circuitry is provided which reorders the data packet portions received out of order back into sequential order as the data is stored in a page buffer memory in real time. Computing the CRC codes in real time permits the saving of costs associated with other approaches that significantly buffer the incoming packets to permit subsequent reordering and CRC computation.

US Patent:

59537442, Sep 14, 1999

Filed:

Jan 2, 1997

Appl. No.:

8/735440

Inventors:

Bernie R. Marasco - Superior CO

Assignee:

Exabyte Corporation - Boulder CO

International Classification:

G06F 1300
G11B 700

US Classification:

711162

Abstract:

Method, apparatus and program are provided for replicating an image of a source hard disk (22) onto a larger destination hard disk (22') in a manner that renders available the non-image-utilized sectors of the destination hard disk. Destination disk address dimensions are obtained from a drive (24') which handles the destination hard disk. Both source disk address dimensions and an image of sectors stored on the source disk are obtained from a temporary storage media (84). The image of the source disk is recorded on the destination disk (22'), but address values stored in the sectors of the image are adjusted to be based on the destination disk address dimensions rather than the source disk address dimensions.

US Patent:

59604603, Sep 28, 1999

Filed:

Jan 2, 1997

Appl. No.:

8/774733

Inventors:

Bernie R. Marasco - Superior CO
Frederick G. Munro - Broomfield CO
William E. Dunphy - Westminster CO
Joseph K. Puhr - Lafayette CO
Hilliard M. Scott - Westminster CO

Assignee:

Exabyte Corporation - Boulder CO

International Classification:

G06F 1216
G06F 1310
G06F 1730

US Classification:

711162

Abstract:

A computer program product embodied in a memory (FD1, FD2) implements procedures for replicating the contents of a first hard disk on a second hard disk. In a backup operation mode, the program enables a suspect computer (20S) to copy or backup sectors of its hard disk (22S) onto a temporary storage media (84) without recording on hard disk (22S). A user-designated signature, dimensioning parameters of hard disk (22S) and first checking information is also recorded on the temporary storage media (84, FD3). In a restore operation mode, the program enables a lab computer (20L) to read sectors of the hard disk (22S) from the temporary storage media (84) and to record sectors of first hard disk (22S) on the hard disk (22L) in accordance with the dimensioning parameters of hard disk (22S). The program prompts computation of second checking information with respect to sectors recorded on hard disk (22L) and usage of a comparison of the first checking information and the second checking information to confirm integrity of replication of sectors on the hard disk (22L).

US Patent:

60565519, May 2, 2000

Filed:

Aug 28, 1998

Appl. No.:

9/141917

Inventors:

Bernie Marasco - Superior CO

International Classification:

G09B 1700
G09B 1704

US Classification:

434178

Abstract:

A method and apparatus for computer aided reading training provides for improving reading speed with comprehension, the method comprising the steps of displaying textual matter in a machine readable format; presenting a designated text display area indicia on a video monitor screen; presenting input device controllable operational indicia on the video monitor screen; and displaying the textual matter within the word display area indicia on the video monitor screen, the textual matter being segmented into textual portions, each of the portions appearing on the monitor screen for a selected duration and at the termination of the selected duration being instantly replaced by each subsequent one of the textual portions in turn, the operational indicia being functional for adjusting the position and approximate quantity of textual matter in each of the textural portions.