Determining whether characteristics of a local area network...

Details Determining whether characteristics of a local area network... Determining whether characteristics of a local area network...

2007-12-04

2007-12-04

Trujillo, James K. (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Having power source monitoring

C713S300000

Reexamination Certificate

active

10712328

ABSTRACT:
A power supply subsystem for providing electrical power to a local area network node over communication cabling, the power supply subsystem containing: a power management and control unit; programmable current limiting circuitry responsive to the power management and control unit to provide a programmable current limited output; voltage measurement means; and at least one of a combiner and a power supply interface operative to couple the programmable current limited output to the communication cabling. The power management and control unit is operative to: measure, utilizing the voltage measuring means at a plurality of pre-determined intervals, a voltage developed in accordance with the coupled programmable current limited output; and determine, as a consequence of the measured voltage whether characteristics of the node allow it to receive power over the communication cabling.

REFERENCES:
patent: 4467314 (1984-08-01), Weikel et al.
patent: 4528667 (1985-07-01), Fruhauf
patent: 4692761 (1987-09-01), Robinton
patent: 4733389 (1988-03-01), Puvogel
patent: 4799211 (1989-01-01), Felker et al.
patent: 4815106 (1989-03-01), Propp et al.
patent: 4885563 (1989-12-01), Johnson et al.
patent: 4903006 (1990-02-01), Boomgaard
patent: 4992774 (1991-02-01), McCullough
patent: 5032833 (1991-07-01), Laporte
patent: 5066939 (1991-11-01), Mansfield, Jr.
patent: 5093828 (1992-03-01), Braun et al.
patent: 5148144 (1992-09-01), Sutterlin et al.
patent: 5192231 (1993-03-01), Dolin, Jr.
patent: 5351272 (1994-09-01), Abraham
patent: 5452344 (1995-09-01), Larson
patent: 5491463 (1996-02-01), Sargeant et al.
patent: 5652893 (1997-07-01), Ben Meir et al.
patent: 5684826 (1997-11-01), Ratner
patent: 5689230 (1997-11-01), Merwin et al.
patent: 5691940 (1997-11-01), Marshall et al.
patent: 5799196 (1998-08-01), Flannery
patent: 5828293 (1998-10-01), Rickard
patent: 5835005 (1998-11-01), Furukawa et al.
patent: 5859596 (1999-01-01), Mcrae
patent: 5884086 (1999-03-01), Amoni et al.
patent: 5991885 (1999-11-01), Chang
patent: 5994998 (1999-11-01), Fisher et al.
patent: 6033101 (2000-03-01), Reddick et al.
patent: 6115468 (2000-09-01), De Nicolo
patent: 6125448 (2000-09-01), Schwan et al.
patent: 6140911 (2000-10-01), Fisher et al.
patent: 6218930 (2001-04-01), Katzenberg et al.
patent: 6243818 (2001-06-01), Schwan
patent: 6301527 (2001-10-01), Butland et al.
patent: 6329906 (2001-12-01), Fisher et al.
patent: 6348874 (2002-02-01), Cole et al.
patent: 6377874 (2002-04-01), Ykema
patent: 6393607 (2002-05-01), Hughes et al.
patent: 6473608 (2002-10-01), Lehr et al.
patent: 6480510 (2002-11-01), Binder
patent: 6496105 (2002-12-01), Fisher et al.
patent: 6753761 (2004-06-01), Fisher et al.
patent: 2003/0058085 (2003-03-01), Fisher et al.
patent: 9217968 (1992-10-01), None
patent: 9623377 (1996-08-01), None
Bearfield, J.M., “Control the Power Interface of USB's Voltage Bus”, Electronic Design, U.S., Penton Publishing, Cleveland Ohio, vol. 45, No. 15, Jul. 1997 pp. 80, 82,84, 86.
Rad Data Comm. Ltd., “Token Ring Design Guide”, 1994, #TR-20-01/94, Chapters 1 through 4-21.
PowerDsine Product Catalouge 1999, pp. 56-79 and 95-105, Israel.
An Interoperable Solution for FDDI Signalling Over Shielded Twisted Pair; Advanced Micro Devices, Inc. et al, Version 1.0, May 21, 1991, USA pp. 1-16.
Lynn K “Universal Serial Bus (USB) Power Management”; WEBCON/97 Conference Proceedings, Santa Clara, CA, USA Nov. 4-6, 1997; New York, N.Y.; IEEE Nov. 4, 1997 pp. 434-441 XP010254418.

Affiliated with

Also associated with

Rating

Determining whether characteristics of a local area network... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determining whether characteristics of a local area network..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining whether characteristics of a local area network... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3878351