Thomas N Potter

US Patent:

6674755, Jan 6, 2004

Filed:

Jun 30, 2000

Appl. No.:

09/607771

Inventors:

Thomas A. Potter - Petaluma CA
R. Douglas Howson - Santa Rosa CA

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04M 1106

US Classification:

370395, 370237

Abstract:

A method for protection switching in a telecommunications network is provided that includes receiving a plurality of primary and secondary sub-streams. Each primary sub-stream corresponds to a redundant secondary sub-stream. Each sub-stream has an associated priority level. Protection switching is provided for the sub-streams based on the priority levels.

US Patent:

61544604, Nov 28, 2000

Filed:

May 30, 1997

Appl. No.:

8/866884

Inventors:

Daniel J. Kerns - Petaluma CA
Thomas A. Potter - Petaluma CA
Patrick K. Walp - Penngrove CA

Assignee:

Alcatel USA Sourcing, L.P. - Plano TX

International Classification:

H04L 1256

US Classification:

370398

Abstract:

A data packet transmission system is disclosed. The system comprises a processor (178) having a memory block (202) and a communication controller (204). The processor (178) stores a data packet (205), a buffer descriptor array (206), and a header (208) in the memory block (202). The buffer descriptor array (206) has a first plurality of elements (206b, 206d, 206f, 206h, 206i), each indicating a respective segment (205a-205e) of the data packet (206), and a second plurality of elements (206a, 206c, 206e, 206g), each indicating the header (208). The processor (178) supplies the location of the buffer descriptor array (206) to the communication controller (204). In response, the communication controller (204) transmits a plurality of cells (222, 224, 226, 228), each cell including the header (208) and a segment of the data packet (205), to a destination system (180).

US Patent:

6188667, Feb 13, 2001

Filed:

Feb 5, 1999

Appl. No.:

9/245806

Inventors:

Martin Roberts - Milton Keynes, GB
Thomas A. Potter - Petaluma CA
R. Douglas Howson - Santa Rosa CA

Assignee:

Alcatel USA, Inc. - Plano TX

International Classification:

H04L 1224

US Classification:

370219

Abstract:

A transport interface (10) provides add drop multiplex functionality and termination requirements for the transportation of network traffic. The transport interface (10) includes high speed units (12), broadband interfaces (16), and SONET formatters (18). Each high speed unit (12), broadband interface (16), and SONET formatter has redundant protection pairs (A and B). The high speed units (12), broadband interfaces (16), and SONET formatters (18) communicate with each other by in-band datalinks (40). The redundant protection pairs (A and B) communicate with one another by protection pair datalinks (42). The in-band datalinks (40) and the protection pair datalinks (42) provide protection switching within the transport interface (10) in the event of component failure. The in-band datalinks (40) are generated out of available or consumed bytes within either a section overhead (32) or a line overhead (34) of SONET OC-N frame (30). The protection pair datalinks (42) provide communication capability over a common control communications interface.

US Patent:

60090758, Dec 28, 1999

Filed:

Mar 29, 1996

Appl. No.:

8/625801

Inventors:

Martin Roberts - Milton Keynes, GB
Thomas A. Potter - Petaluma CA
R. Douglas Howson - Santa Rosa CA

Assignee:

DSC Communications Corporation - Plano TX

International Classification:

H04L 1224

US Classification:

370219

Abstract:

A transport interface (10) provides add drop multiplex functionality and termination requirements for the transportation of network traffic. The transport interface (10) includes high speed units (12), broadband interfaces (16), and SONET formatters (18). Each high speed unit (12), broadband interface (16), and SONET formatter has redundant protection pairs (A and B). The high speed units (12), broadband interfaces (16), and SONET formatters (18) communicate with each other by in-band datalinks (40). The redundant protection pairs (A and B) communicate with one another by protection pair datalinks (42). The in-band datalinks (40) and the protection pair datalinks (42) provide an effective means for performing protection switching within the transport interface (10) in the event of component failure. The in-band datalinks (40) are generated out of available or consumed bytes within either a section overhead (32) or a line overhead (34) of SONET OC-N frame (30). The protection pair datalinks (42) provide communication capability over a common control communications interface.

US Patent:

58675434, Feb 2, 1999

Filed:

Mar 29, 1996

Appl. No.:

8/625716

Inventors:

Martin Roberts - Deanshanger, GB
Thomas A. Potter - Petaluma CA

Assignee:

DSC Communications Corporation - Plano TX

International Classification:

O00O 0000

US Classification:

375365

Abstract:

A multi-rate transmission system (10) includes a receive section (12) and a transmit section (14). The receive section includes a receiver (16), a clock recovery unit (18), and a serial to parallel converter (20) all operating at a first clock rate (M). The receiver (16) also has a frame recovery unit (22) that operates at any of a plurality of clock rates, including the first clock rate (M) and a second clock rate (M/n). When the frame recovery unit operates at the first clock rate (M), frame information received by the receiver section (12) has unique bits occupying each bit position associated with each clock pulse of the first clock rate (M). When the frame recovery unit (22) operates at the second clock rate (M/n), each unique bit of the frame information occupies a number of bit positions according to a ratio of the first clock rate (M) to the second clock rate (M/n). Similar operation occurs with respect to a frame formatter (30) in the transmit section (14) of the multi-rate transmission system (10).

US Patent:

47318678, Mar 15, 1988

Filed:

Apr 21, 1986

Appl. No.:

6/854376

Inventors:

Thomas W. Seabury - Diablo CA
Thomas Potter - Los Alamitos CA

Assignee:

Detector Systems, Inc. - Stanton CA

International Classification:

H04B 500

US Classification:

455 41

Abstract:

A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside the normal frequency range of the vehicle detector system, preferably by interrupted carrier pattern processing.