Data network line driver

Details Data network line driver Data network line driver

1990-05-31

1991-12-31

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

330195, 330276, 330255, 307253, H04B 300, H03K 1760

Patent

active

050777564

ABSTRACT:
A line driver for a cable linked LAN maintains a high impedance across the cable when not sending data. A pulse transformer includes a primary and secondary winding. The primary winding of the transformer is placed between a first pair of transistors and a second pair of transistors. An array of switching inverters activates these transistors in such a manner whereby, when one pair is turned on, the other pair is turned off. This "off" and "on" toggling of the transistor pairs drives current into the transformer primary. Such current induces a pulse in the transformer secondary which is coupled into the LAN cable.

REFERENCES:
patent: 2990516 (1961-06-01), Johannessen
patent: 4079271 (1978-05-01), Peil
patent: 4121118 (1978-10-01), Mizazaki
patent: 4445222 (1984-04-01), Smith
patent: 4479228 (1984-10-01), Crane
patent: 4615039 (1986-09-01), Li et al.
patent: 4943979 (1990-07-01), Webber, Jr.

Affiliated with

Also associated with

Rating

Data network line driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data network line driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data network line driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1515383