IP Library Granted Patent US 7,305,476
Granted Patent B2
US 7,305,476 · App. 10/770,057 · Granted Dec 4, 2007

Method and system for network synchronization and isolation

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Quick Facts
Patent No.
US 7,305,476
App. No.
10/770,057
Granted
Dec 4, 2007
Kind
B2
Abstract

A network synchronization method designed to provide synchronization of multiple networks and devices. This invention provides a specific method for determining which nodes are responsible for network synchronization as nodes fail or cannot see each other due to conditions on the network. This allows for fault tolerance in a network in which conditions change dynamically. In addition, this invention uses synchronization codes and network numbers to isolate separate networks using the same physical medium, thus allowing sharing of network resources.

Claims (24)

1. A method for network isolation comprising;

A. sending a first synchronization code from a first sync master control node in a first time slot, wherein said first synchronization code is synchronized to said first sync master control node;

B. detecting said first synchronization code in said first time slot with a first network node;

C. creating a first sync network by having said first network node track said first synchronization code sent from said first sync master control node;

D. sending a second synchronization code, from a second sync master control node that is not synchronized to said first sync master control node, in a second time slot, wherein said second synchronization code is synchronized to said second sync master control node;

E. detecting said second synchronization code in said second time slot with a second network node; and

F. creating a second sync network by having said second network node track said second synchronization code from said second sync master control node, wherein said first and second synchronization codes are not dependent on the time phase of any other node in said first sync network and second sync network, respectively, wherein said first synchronization code is sent before said first sync network is created, and wherein said second synchronization code is sent before said second sync network is created.

2. A method for network isolation as recited in claim 1 , further comprising the step of subdividing said second sync network into one or more logical networks by using a network identifier.

3. A method for network isolation as recited in claim 1 , wherein creating said second sync network further comprises creating said second sync network on a physical network selected from the group consisting of, a wireless network, a light frequency network, a power line network, an acoustic network, and a wired network.

4. A method for network isolation as recited in claim 1 , further comprising the step of creating up to four synchronization networks using four synchronization codes.

5. A system for network isolation comprising;

A. four or more network nodes which further comprises a first network node and a second network node;

B. wherein said four or more network nodes further comprises a plurality of sync master control nodes which further comprises a first sync master control node and a second sync master control node;

C. a plurality of sync networks further comprising a first sync network and a second sync network;

D. a plurality of synchronization codes which further comprises a first synchronization code and a second synchronization code;

E. wherein said first sync master control node sends said first synchronization code on a first time slot, wherein said first synchronization code is synchronized to said first sync master control node;

F. wherein said first network node detects said first synchronization node and creates said first sync network by tracking said first synchronization code;

G. wherein said second sync master control node sends said second synchronization code on a second time slot, wherein said second synchronization code is synchronized to said second sync master control node; and

H. wherein said second network node detects said second synchronization code and creates said second sync network by tracking said second synchronization code, wherein said first synchronization code is sent before said first sync network is created, wherein said second synchronization code is sent before said second sync network is created, and wherein said first and second synchronization codes are configured to not allow synchronization to occur between said first and second sync networks.

6. A system for network isolation as recited in claim 5 , wherein said plurality of sync networks is further sub-divided into logical networks using a network identifier.

7. A system for network isolation as recited in claim 5 , wherein said plurality of networks comprises a physical network selected from the group consisting of a power line network, a wireless network, light frequency network, an acoustic network, and a wired network.

8. A system for network isolation as recited in claim 5 , wherein said plurality of synchronization codes is four synchronization codes.

9. The method for network isolation of claim 1 , wherein said first and second synchronization codes each comprise a binary number.

10. The method for network isolation of claim 1 , wherein creating said first sync network further comprises creating said first sync network on a power line network, and wherein creating said second sync network further comprises creating said second sync network on said power line network.

Assignments (10)
MERGER Recorded Jan 22, 2016
From: LOW ENVIRON AG, LLC
To: GULA CONSULTING LIMITED LIABILITY COMPANY
Reel/Frame 037561/0153 →
CORRECTIVE ASSIGNMENT TO CORRECT THE EXECUTION DATES FOR INVENTORS LYMAN D. HORNE, RONALD S. LEAHY, AND W. PAUL WILLES PREVIOUSLY RECORDED ON REEL 014958 FRAME 0684. ASSIGNOR(S) HEREBY CONFIRMS THE EXECUTION DATES ARE LYMAN D. HORNE - 08/19/2003, RONALD S. LEAHY - 08/28/2003, AND W. PAUL WILLES - 06/19/2003. Recorded Aug 6, 2012
From: HORNE, LYMAN D.; LEAHY, RONALD S.; WILLES, W. PAUL; MILLER, MICHAEL J.; KINGSTON, SAMUEL C.; GROVER, DOUGLAS M.
To: PHONEX BROADBAND CORPORATION
Reel/Frame 028734/0228 →
CORRECTIVE ASSIGNMENT TO CORRECT THE EXECUTION DATES FOR INVENTORS MICHAEL J. MILLER, SAMUEL C. KINGSTON, AND DOUGLAS M. GROVER PREVIOUSLY RECORDED ON REEL 014958 FRAME 0684. ASSIGNOR(S) HEREBY CONFIRMS THE EXECUTION DATES ARE MICHAEL J. MILLER - 08/26/2003, SAMUEL C. KINGSTON - 09/02/2003, AND DOUGLAS M. GROVER - 06/19/2003. Recorded Aug 6, 2012
From: HORNE, LYMAN D.; LEAHY, RONALD S.; WILLES, W. PAUL; MILLER, MICHAEL J.; KINGSTON, SAMUEL C.; GROVER, DOUGLAS M.
To: PHONEX BROADBAND CORPORATION
Reel/Frame 028734/0238 →
MERGER Recorded Jul 16, 2012
From: PHONEX BROADBAND CORPORATION, A UTAH CORPORATION
To: PHONEX BROADBAND CORPORATION, A DELAWARE CORPORATION
Reel/Frame 028559/0594 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 24, 2012
From: PHONEX BROADBAND CORPORATION
To: LOW ENVIRON AG, LLC
Reel/Frame 028096/0780 →
RELEASE OF SECURITY INTEREST Recorded Feb 9, 2012
From: D.P. KELLY & ASSOCIATES, L.P.
To: PHONEX BROADBAND CORPORATION
Reel/Frame 027681/0903 →
RELEASE OF SECURITY INTEREST Recorded Jan 27, 2012
From: SILICON VALLEY BANK
To: PHONEX BROADBAND CORPORATION
Reel/Frame 027612/0279 →
RELEASE OF SECURITY INTEREST Recorded Jan 21, 2011
From: D.P. KELLY & ASSOCIATES, L.P.
To: PHONEX BROADBAND CORPORATION
Reel/Frame 025680/0653 →
SECURITY AGREEMENT Recorded Mar 3, 2010
From: PHONEX BROADBAND CORPORATION
To: D.P. KELLY & ASSOCIATES, L.P.
Reel/Frame 024023/0084 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2004
From: HORNE, LYMAN D.; LEAHY, RONALD S.; WILLES, W. PAUL; MILLER, MICHAEL J.; KINGSTON, SAMUEL C.; GROVER, DOUGLAS M.
To: PHONEX BROADBAND CORPORATION
Reel/Frame 014958/0684 →