Ramesh H Vaswani

US Patent:

6853963, Feb 8, 2005

Filed:

May 25, 1999

Appl. No.:

09/318286

Inventors:

Larry Apfelbaum - West Newton MA, US
Peter L. Savage - Mont Vernon NH, US
Mark Trumpler - Lexington MA, US
John D. Doyle - Hollis NH, US
Thomas Lynch - Hollis NH, US
Ramesh Vaswani - Nashua NH, US

Assignee:

Empirix Inc. - Waltham MA

International Classification:

G06F009/45

US Classification:

703 2, 703 22, 703 17, 717126

Abstract:

A method of using a computer to analyze an extended finite state machine model of a system includes providing a graphical user interface that presents a table of rows, receiving data in at least one table row, and determining at least one path through the states and transitions of the extended finite state machine model using at least one of the rows in the table.

US Patent:

20030126254, Jul 3, 2003

Filed:

Nov 26, 2001

Appl. No.:

09/995056

Inventors:

Robert Cruickshank - Chichester NY, US
Daniel Rice - Windham NH, US
Jason Schnitzer - Boulder CO, US
Dennis Picker - Lincoln MA, US
Raphael Leeman - Natick MA, US
Ramesh Vaswani - Nashua NH, US
Robert Gauvin - Hampton NH, US

International Classification:

G06F015/173
G09G005/00

US Classification:

709/224000, 345/736000

Abstract:

A computer program product includes computer-executable instructions for causing a computer to obtain performance data related to performance of a broadband network, and provide a hierarchical display of network performance, the hierarchical display including a first level with first data indicative of network operation and a second level with second data indicative of a plurality of issues comprising the first level of network performance, where the second level includes multiple issues that contain a third level with third data indicative of network issues comprising at least some of the secondary level issues.

US Patent:

54085977, Apr 18, 1995

Filed:

Jul 29, 1993

Appl. No.:

8/100001

Inventors:

Ronald A. Kita - Hollis NH
Kaare H. Klevjer - Westford MA
Ramesh H. Vaswani - Nashua NH

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 1500

US Classification:

395140

Abstract:

An apparatus and method for generating connected graphs for display on a computer monitor. A data structure and virtual map are defined which provide a linked list of objects appearing at any location in the connected graph, the virtual map being larger than the dimensions of the display monitor if the connected graph demands larger dimensions. Commands carried out with respect to any object on the monitor are correlated with the cell maps in the virtual map, which point to the linked lists of objects, the lists in turn pointing to objects stored in an object records database. This provides rapid access to all objects at any given location on the display or in the connected graph. When a user gives a command to create a connection between two objects in the graph, the method generates the shortest connection possible, in terms of both pixel length and arc length for arc-connections, balanced against a minimization of collisions by the connection with existing objects, including other connections. The method is described in connection with the generation of graphical models of finite state machines (FSMs), but is suitable for use in any system where it is desirable to rapidly produce connected graphs and to maintain a minimum, user-definable level of clarity and legibility of the graph.

US Patent:

57776180, Jul 7, 1998

Filed:

Oct 15, 1996

Appl. No.:

8/729894

Inventors:

Ronald Allen Kita - Hollis NH
Kaare Hedeman Klevjer - Westford MA
Ramesh Hero Vaswani - Nashua NH

Assignee:

Digital Equipment Corporation - Maynard MA

International Classification:

G06F 1500

US Classification:

345418

Abstract:

A system and method for rapid panning of graphics images stored as objects in an object records database. The system comprises a computer with memory or memories divided into a several memory regions. The computer is coupled to a monitor for displaying graphics files stored in the database. The memory regions include: a virtual map (VMAP) region including cell maps comprising pointers to linked lists of objects in the database; a backing store region storing a bitmapped image of an entire file, and having the same effective dimensions as the VMAP; a main store region storing a smaller portion of the bitmapped image, the main store region having the same pixel dimensions as a viewing region on the monitor and a movable main store viewing window which permits a view of the subset of the bitmap. When the user pans across the image, the ready, bitmapped image from the large backing store is rapidly copied to the main store and blitted to the screen, avoiding delays due to rendering a bitmapped image from the database or VMAP. Alterations to the image or to the viewing window will update the VMAP and the backing store simultaneously, eliminating update delays to the monitor when panning is executed.