Steven A Frank

US Patent:

6647393, Nov 11, 2003

Filed:

May 2, 1997

Appl. No.:

08/850137

Inventors:

Daniel J. Dietterich - Acton MA
Robert S. Phillips - Brookfield MA
John B. Carter - Salt Lake City UT
Scott H. Davis - Groton MA
Steven J. Frank - Hopkinton MA
William Abraham - Windham NH

Assignee:

Mangosoft Corporation

International Classification:

G06F 1730

US Classification:

707102, 707 10

Abstract:

In a network of computer nodes, a directory service provides both the physical location of directory information around the network and the directory information itself in a single data structure. This single data structure is distributed throughout the network, and continuously redistributed, so as to create a directory service that is both more flexible, and more robust, than prior art directory services.

US Patent:

6694412, Feb 17, 2004

Filed:

Sep 28, 2001

Appl. No.:

09/967404

Inventors:

Steven J. Frank - Hopkinton MA
Henry Burkhardt, III - Manchester MA
Linda O. Lee - Cambridge MA
Nathan Goodman - Brookline MA
Benson I. Margulies - Arlington MA
Frederick D. Weber - Cambridge MA

Assignee:

Sun Microsystems, Inc. - Santa Clara CA

International Classification:

G06F 1208

US Classification:

711153

Abstract:

A multiprocessor digital data processing system comprises a plurality of processing cells arranged in a hierarchy of rings. The system selectively allocates storage and moves exclusive data copies from cell to cell in response to access requests generated by the cells. Routing elements are employed to selectively broadcast data access requests, updates and transfers on the rings.

US Patent:

20040117410, Jun 17, 2004

Filed:

Nov 7, 2003

Appl. No.:

10/704327

Inventors:

Daniel Dietterich - Acton MA, US
Robert Phillips - Brookfield MA, US
John Carter - Salt Lake City UT, US
Scott Davis - Groton MA, US
Steven Frank - Hopkinton MA, US
William Abraham - Windham NH, US

International Classification:

G06F017/30

US Classification:

707/200000

Abstract:

In a network of computer nodes, a directory service provides both the physical location of directory information around the network and the directory information itself in a single data structure.

US Patent:

20080256090, Oct 16, 2008

Filed:

Jun 23, 2008

Appl. No.:

12/144508

Inventors:

Daniel J. Dietterich - Acton MA, US
Robert S. Phillips - Brookfield MA, US
John B. Carter - Salt Lake City UT, US
Scott H. Davis - Groton MA, US
Steven J. Frank - Hopkinton MA, US
William Abraham - Windham NV, US

Assignee:

MANGOSOFT CORPORATION - Westborough MA

International Classification:

G06F 17/30

US Classification:

707 10, 707E17032

Abstract:

In a network of computer nodes, a directory service provides both the physical location of directory information around the network and the directory information itself in a single data structure. This single data structure is distributed throughout the network, and continuously redistributed, so as to create a directory service that is both more flexible, and more robust, than prior art directory services.

US Patent:

52822010, Jan 25, 1994

Filed:

May 10, 1990

Appl. No.:

7/521798

Inventors:

Steven J. Frank - Hopkinton MA
Henry Burkhardt - Manchester MA
James B. Rothnie - Brookline MA
David I. Epstein - Boxborough MA
Stephen W. Morss - Somerville MA
Dana R. Kelly - Westland MA
Paul A. Binder - Hollis NH

Assignee:

Kendall Square Research Corporation - Waltham MA

International Classification:

H04L 1256
H04L 1246

US Classification:

370 941

Abstract:

A digital data communications apparatus includes first and second processing groups, each made up of a plurality of processing cells interconnected by an associated bus. An element (RRC) transfers information packets generated by the processing cells between the first and second processing groups. The RRC includes an input for receiving packets from the bus of the first processing group, as well as first and second outputs for outputting packets to the buses of the first and second groups, respectively. A control element routes packets received at the input to a selected one of the outputs based upon a prior history of routings of the datum referenced in that information packet (or requests for that data) between said first and second processing groups.

US Patent:

57614130, Jun 2, 1998

Filed:

Jun 5, 1995

Appl. No.:

8/462759

Inventors:

Steven J. Frank - Hopkinton MA
William F. Mann - Sudbury MA

Assignee:

Sun Microsystems, Inc. - Mountain View CA

International Classification:

G06F 1100

US Classification:

39518502

Abstract:

A multiprocessor system has a plurality of processing cells, each including a processor and memory, interconnected via a network. The memories respond to requests by the processors for accessing data and, absent fault, transmitting it in response packets to at least to the requesting processors. A fault containment element responds to at least certain faults during access or transmission of a datum for including within the respective response packet a fault signal that prevents the requestor from accessing the datum. If a fault is detected in a datum not previously detected as faulty, a marking element can include a "marked fault" signal in the response packet. Whereas, it can include an "unmarked fault" signal when it detects a fault associated with a requested datum, but not specifically isolated to that datum. When a request is made for a datum which had previously been detected as faulty, the marking element can include in the response packet a "descriptor fault" signal. This facilitates identification of a particular source of an error and prevents that error from propagating to other processing cells.

US Patent:

50180843, May 21, 1991

Filed:

Jan 30, 1989

Appl. No.:

7/303639

Inventors:

Steven J. Frank - Brookline MA

International Classification:

G03B 700
G06F 900

US Classification:

364525

Abstract:

A darkroom calculator that performs mass, volume, concentration and temperature conversions useful in the preparation of darkroom chemicals; calculation of proper development times and temperatures for exposed film; calculation of proper dilution temperatures; calculation of exposure values relevant to the enlargement process and exposure of sensitized substrates; and monitoring of the passage of time and solution temperature levels.

US Patent:

61070017, Aug 22, 2000

Filed:

May 5, 1997

Appl. No.:

8/851205

Inventors:

Thomas E. Lewis - E. Hampstead NH
Steven J. Frank - Framingham MA

Assignee:

Presstek, Inc. - Hudson NH

International Classification:

G03F 700
B41N 108

US Classification:

430302

Abstract:

Methods and apparatus for lithographic imaging without ablation function by irreversibly debonding intermediate printing-plate layers, thereby rendering at least the surface layer removable by cleaning to expose, in an imagewise pattern, an underlying layer having a different affinity for ink and/or an abhesive fluid for ink. In contrast to ablation-type systems, it is unnecessary to destroy a plate layer, thereby reducing power requirements and facilitating increased imaging speeds.