Raymond R Glenn

US Patent:

47078324, Nov 17, 1987

Filed:

Apr 10, 1985

Appl. No.:

6/721645

Inventors:

Raymond R. Glenn - Round Rock TX
Andrew T. Powshok - Indialantic FL
Robert S. Padgett - Melbourne FL
Pedro Uriarte - Indian Harbour Beach FL
Joseph B. Cain - Indialantic FL
Gautam H. Thaker - West Melbourne FL

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04J 100
H04J 312

US Classification:

370124

Abstract:

A local area network employs a shared control channel over which control messages between frequency agile modems for each of the user nodes of a distributed architecture-configured network are exchanged. In addition to the shared control channel, a plurality of data channel pairs is available for effecting full duplex communications between any two nodes of the network. Because all data channel assignments depend upon successful use of the control channel, a prescribed control channel contention access scheme is employed to optimize use of the control channel by all users of the network irrespective of the demand for its use. Pursuant to this scheme, each requesting node must first compare an accumulated activity measure with a traffic density threshold that is continuously optimized for the current level of control channel activity. Unless the accumulated measure is less than the threshold, the requesting user node is temporarily forbidden access to the control channel by a period of time designed to reduce traffic to the optimal level.

US Patent:

60438258, Mar 28, 2000

Filed:

Jun 19, 1997

Appl. No.:

8/879277

Inventors:

Raymond R Glenn - Harwood MD
Helaman R Ferguson - Laurel MD

Assignee:

The United States of America as represented by the National Security
Agency - Washington DC

International Classification:

G06T 1700

US Classification:

345440

Abstract:

A method of displaying on a computer screen a two dimensional representation without any false crossings of a three dimensional interconnection network, where the three dimensional interconnection network consists of vertices defined by a series of perpendicular quadrilaterals; where the vertices of the quadrilaterals are mapped onto a two dimensional hyperbolic plane using geometric functions based on the vertex chosen as a point of origin and where the vertices in the two dimensional display are labelled along with any performance data.