John Shaunfield

US Patent:

44000545, Aug 23, 1983

Filed:

Jan 22, 1982

Appl. No.:

6/341873

Inventors:

James R. Biard - Richardson TX
John E. Shaunfield - Richardson TX
Royce S. Speer - Wylie TX

Assignee:

Spectronics, Inc. - Richardson TX

International Classification:

G02B 5172

US Classification:

350 9615

Abstract:

Disclosed is an optical data bus employing a passive optical coupler. The optical coupler includes a scrambler rod which is rectangular in cross section and employs solid substantially inflexible side arms which are also rectangular in cross section. The side arms include a mirrored prism to bend the light path and permit separation of the ends of the distribution side arms so that flexible fiber bundles may be attached to the ends of the distribution side arms.

US Patent:

58674845, Feb 2, 1999

Filed:

Jan 31, 1997

Appl. No.:

8/791201

Inventors:

John E. Shaunfield - Plano TX

Assignee:

Intellect Network Technologies - Richardson TX

International Classification:

H04Q 1104

US Classification:

370254

Abstract:

A technique for controlling node equipment in a SONET ring transmission system. Control signals from a control center are transmitted in a selected byte of the SONET frame to each node coupled to the SONET ring. Each SONET node includes a decoder for decoding the control signals as to a destination address, and if a match is found, the node decodes a command field to carry out the representative functions. The command may be to activate or deactivate node circuits, or to receive or transmit video signals in specified VT channels of the SONET frame. In this manner, equipment can be switched on or off at the respective node to thereby optimize the bandwidth efficiency of the SONET network.