High impedance state for digital subscriber line...

Details High impedance state for digital subscriber line... High impedance state for digital subscriber line...

2007-02-13

2007-02-13

Phu, Phuong (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S219000, C375S220000, C375S257000

Reexamination Certificate

active

09771113

ABSTRACT:
The invention relates to methods and a high speed communication device that allow one of a plurality of high speed communication devices connected to a transmission line having a normal impedance to effectively receive data.The high speed communication device can include a transmission line interface connected to the transmission line, a receiver connected to the transmission line interface, and a transmitter selectively coupled to the transmission line interface. The transmitter can have an impedance substantially equal to the normal line impedance.The high speed communication device can present a high impedance to the transmission line with respect to the normal line impedance when the transmitter is not coupled to the transmission line interface, and the high speed communication device can present an impedance to the transmission line that is substantially equal to the normal line impedance when the transmitter is coupled to the transmission line interface.

REFERENCES:
patent: 5038372 (1991-08-01), Elms et al.
patent: 5896452 (1999-04-01), Yip et al.
patent: 6031388 (2000-02-01), Dobbelaere
patent: 6226331 (2001-05-01), Gambuzza
patent: 6324167 (2001-11-01), Starr
Allen, “CMOS Analog Circuit Design”, published by Saunders College Publishing, 1987, pp. 198-200.

Affiliated with

Also associated with

Rating

High impedance state for digital subscriber line... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High impedance state for digital subscriber line..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High impedance state for digital subscriber line... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3838914