Gerald H Miracle

US Patent:

55175198, May 14, 1996

Filed:

Jun 14, 1993

Appl. No.:

8/076027

Inventors:

Quiedo J. Carbone - Kingston NY
Gerald H. Miracle - Pleasant Valley NY
Peter L. Potvin - Holly Springs NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04M 1500
H04B 336

US Classification:

375211

Abstract:

A computer system employs a repeater unit which repowers a serial channel link. The repeater unit also monitors and records non-idle usage and errors for both directions of the repeated serial link. Non-idle usage of the serial link is recorded as a number of seconds that non-idle traffic flowed in the link over a given period of time. Link serial code violations and loss-of-light transitions are also counted. Link code violations are counted with an accuracy that permits targeted serial link bit-error rates, of no more than one bit error in approximately two months, to be accurately verified for the first time in a normal customer environment. The repeater unit permits an attached monitoring computer to read and reset all its usage and error counters as often as required by the customer, and without losing any counts of any counted event. The attached monitoring computer can also instruct the repeater unit to send certain diagnostic patterns or no-light and/or perform a remote wrap function to assist with link problem determinations.

US Patent:

49759167, Dec 4, 1990

Filed:

Jul 26, 1988

Appl. No.:

7/225106

Inventors:

Gerald H. Miracle - Pleasant Valley NY
Richard A. Neuner - Port Ewen NY
Lee H. Wilson - Poughkeepsie NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H03M 714
H03M 900
H04L 702

US Classification:

371 471

Abstract:

A system for bit character synchronization of an 8/10 bit code being deserialized is provided by a deserializer with a skip bit function input used to move a character boundary one bit at a time, and 8/10 code error detector, a zero disparity character detector and skip pulse generator. After character sychronism is lost, the skip pulse generator is permitted to generate a skip pulse if the following sequence occurs: all bits of the old character boundary have been flushed through the logic circuits, at least one non-zero disparity character has been detected, and an 8/10 code error is detected. After character synchronism is re-acquired, then the skip pulse generator is no longer permitted to generate a skip pulse.

US Patent:

55599729, Sep 24, 1996

Filed:

Nov 24, 1992

Appl. No.:

7/981930

Inventors:

Maurice E. Carey - Kingston NY
Gerald H. Miracle - Pleasant Valley NY
James T. Moyer - Endwell NY
Richard A. Neuner - Port Ewen NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1342

US Classification:

395281

Abstract:

In a data processing system in which an extender unit interconnects the parallel bus of a control unit and a serial link of an extender channel, the channel and the extender unit send and receive serial frames that permit the extender unit to operate under the protocol of the parallel bus with either byte mode devices or non-byte mode devices. The control unit can be modified to operate with a byte mode device in data streaming, a high speed data transfer mode.

US Patent:

56422172, Jun 24, 1997

Filed:

Jan 16, 1996

Appl. No.:

8/586454

Inventors:

Quiedo Joseph Carbone - Kingston NY
Gerald Holt Miracle - Pleasant Valley NY
Peter Lloyd Potvin - Holly Springs NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04B 1016

US Classification:

359177

Abstract:

A computer system employs a repeater unit which repowers a serial channel link. The repeater unit also monitors and records non-idle usage and errors for both directions of the repeated serial link. Non-idle usage of the serial link is recorded as a number of seconds that non-idle traffic flowed in the link over a given period of time. Link serial code violations and loss-of-light transitions are also counted. Link code violations are counted with an accuracy that permits targeted serial link bit-error rates, of no more than one bit error in approximately two months, to be accurately verified for the first time in a normal customer environment. The repeater unit permits an attached monitoring computer to read and reset all its usage and error counters as often as required by the customer, and without losing any counts of any counted event. The attached monitoring computer can also instruct the repeater unit to send certain diagnostic patterns or no-light and/or perform a remote wrap function to assist with link problem determinations.

US Patent:

47121769, Dec 8, 1987

Filed:

Feb 11, 1985

Appl. No.:

6/700355

Inventors:

Kenneth J. Fredericks - Poughkeepsie NY
Thomas W. Guerriero - Poughkeepsie NY
Gerald H. Miracle - Pleasant Valley NY
Michael R. Wiegand - Poughkeepsie NY

Assignee:

International Business Machines Corp. - Armonk NY

International Classification:

G06F 1342

US Classification:

364200

Abstract:

Data is transferred between a channel and a control unit in interlocked mode or in data streaming mode over a conventional parallel bus and a serial link that permits the control unit and the channel to be located farther apart than the length of the parallel bus. The serial link carries frames for the rise of the data transfer tags but not their fall, and these tags on the parallel bus are dropped by two circuits that connect the serial link to the parallel bus. In data streaming mode, one data transfer tag is dropped when the next data transfer tag is received on the serial link. The circuit at the control unit end of the serial link detects a pause in the tags to begin an operation to drop the last data transfer tags and both circuits respond to other conditions to drop the last data transfer tags according to the protocol of the parallel bus.

US Patent:

56731329, Sep 30, 1997

Filed:

Jan 16, 1996

Appl. No.:

8/586451

Inventors:

Quiedo Joseph Carbone - Kingston NY
Gerald Holt Miracle - Pleasant Valley NY
Peter Lloyd Potvin - Holly Springs NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04B 1016
H04B 1008

US Classification:

359177

Abstract:

A computer system employs a repeater unit which repowers a serial channel link. The repeater unit also monitors and records non-idle usage and errors for both directions of the repeated serial link. Non-idle usage of the serial link is recorded as a number of seconds that non-idle traffic flowed in the link over a given period of time. Link serial code violations and loss-of-light transitions are also counted. Link code violations are counted with an accuracy that permits targeted serial link bit-error rates, of no more than one bit error in approximately two months, to be accurately verified for the first time in a normal customer environment. The repeater unit permits an attached monitoring computer to read and reset all its usage and error counters as often as required by the customer, and without losing any counts of any counted event. The attached monitoring computer can also instruct the repeater unit to send certain diagnostic patterns or no-light and/or perform a remote wrap function to assist with link problem determinations.

US Patent:

55046118, Apr 2, 1996

Filed:

Jan 23, 1995

Appl. No.:

8/376508

Inventors:

Quiedo J. Carbone - Kingston NY
Gerald H. Miracle - Pleasant Valley NY
Peter L. Potvin - Holly Springs NC

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H04B 1008
H04B 1016

US Classification:

359177

Abstract:

A computer system employs a repeater unit which repowers a serial channel link. The repeater unit also monitors and records non-idle usage and errors for both directions of the repeated serial link. Non-idle usage of the serial link is recorded as a number of seconds that non-idle traffic flowed in the link over a given period of time. Link serial code violations and loss-of-light transitions are also counted. Link code violations are counted with an accuracy that permits targeted serial link bit-error rates, of no more than one bit error in approximately two months, to be accurately verified for the first time in a normal customer environment. The repeater unit permits an attached monitoring computer to read and reset all its usage and error counters as often as required by the customer, and without losing any counts of any counted event. The attached monitoring computer can also instruct the repeater unit to send certain diagnostic patterns or no-light and/or perform a remote wrap function to assist with link problem determinations.

US Patent:

51330784, Jul 21, 1992

Filed:

Aug 11, 1989

Appl. No.:

7/392867

Inventors:

Vahe A. Minassian - Woodstock NY
Gerald H. Miracle - Pleasant Valley NY
Richard A. Neuner - Port Ewen NY
Peter L. Potvin - Ulster Park NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 1300

US Classification:

395800

Abstract:

An asynchronous high-speed data interface for coupling a serial channel to a parallel control unit. A first state machine, running synchronously with the channel transmitter clock, controls the filling of a pair of dual-port input buffers in alternating fashion with frame contents bytes from incoming serial frames that have been deserialized and decoded. A second state machine, running synchronously with a second clock that is asynchronous with the channel transmitter clock, controls the transfer of the frame contents bytes from the selected input buffer to one of a pair of output buffers en route to the control unit. Upon detecting the receipt of the third incoming frame contents byte, the first state machine sets a start latch, causing the second state machine to begin transferring data from the selected input buffer to the selected output buffer while the input buffer is still being filled. Means are provided for disregarding the frame contents bytes that have been transferred to the selected output buffer if the frame is ultimately aborted.