1
Strikumar R Chandran, Edward J Rhodes, Albert S Lui, Mark S Walker: High level self-checking intelligent I/O controller. Tandem Computers Incorporated, Townsend and Townsend, November 15, 1988: US04785453 (58 worldwide citation)

The present invention is an input/output controller for providing total data integrity for any single point failure. The I/O controller comprises a processor module having two microprocessors, an associated memory, a direct memory access module ("DMA"), and a processor support module ("PSM"); a devi ...


2
Ross W Johnston, Theodore D Rees, Edward J Rhodes: Digital data tape storage system utilizing plurality of read/write heads with system diagnostic capability. R Byte, Lyon & Lyon, February 15, 1994: US05287478 (50 worldwide citation)

A complete digital data storage magnetic tape system for utilization with a host unit comprising a host device, an interface for interfacing the host unit with the DDS system, a controller for encoding and decoding data to and from the magnetic tape, an automatic track follower for performing automa ...


3
Edward J Rhodes, Daryl K Adams, Clifford R Berry, Ta Lin Chang, David R Lee: Digital data storage tape formatter. R Byte, Lyon & Lyon, October 25, 1994: US05359468 (44 worldwide citation)

In a digital data storage audio tape system having a host device interface unit, a main data buffer manager, a main data buffer, a processor, a data separator, a tape drive unit, and a read/write channel, this invention comprises a formatter providing track construction, encoding and decoding, error ...


4
Ross W Johnston, Theodore D Rees, Edward J Rhodes: ISO/IEC compatible digital audio tape digital data storage system with increased data transfer rate. R Byte, Lyon & Lyon, April 11, 1995: US05406425 (22 worldwide citation)

The present invention provides a complete digital data storage (DDS) magnetic tape system for utilization with a host unit. The invention comprises a host device interface for interfacing the host unit with the DDS system, a controller/formatter for encoding and decoding data from and to the magneti ...


5
Edward J Rhodes, David R Lee, Theodore D Rees: Digital data tape storage automatic track follower system. R Byte, Lyon & Lyon, March 14, 1995: US05398140 (6 worldwide citation)

An automatic track follower (ATF) system for accurately positioning the read/write head on the tracks of a magnetic tape comprises a pilot signal generator for generating pilot signals from tape pilot marks; a sample-and-hold circuit for sampling the pilot signals from the tracks immediately adjacen ...