Switchable multi-mode transceiver interface device

Details Switchable multi-mode transceiver interface device Switchable multi-mode transceiver interface device

1990-09-25

1993-09-07

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

370 27, 375 36, 330275, H04B 350, H04L 2502

Patent

active

052436233

ABSTRACT:
A transceiver interface device in accordance with the present invention includes features which allow the transceiver to be switched for operation in either a differential or a single-ended mode. First, the output levels of the transceiver's differential line driver are switchable between TTL levels and non-TTL levels with small differential swings. Second, the transceiver's differential receiver is switchable between a differential threshold and a single-ended TTL threshold. Third, while in differential mode, both outputs of the driver may be placed in the high impedance state or active at the same time, but it is also possible to switch to a single-ended mode in which one driver output is in the high impedance state while the other can be switched between being active or being in the high impedance state. Fourth, the transceiver uses the SCSI standard DIFFSENS pin or driver enable signal for switching between differential mode and single-ended mode operation.

REFERENCES:
patent: 3333113 (1967-07-01), Cole
patent: 4254501 (1981-03-01), Griffith et al.
patent: 4385394 (1983-05-01), Pace
patent: 4393494 (1983-07-01), Belforte et al.
patent: 4647912 (1987-03-01), Bates et al.
patent: 4825402 (1989-04-01), Jalali
patent: 4929941 (1990-05-01), Lecocq
Electronically Switchable Interface Circuit with Multiple EIA Protocol Drivers and Receivers; IBM Technical Disclosure Bulletin; vol. 30, No. 11, Apr. 1988; pp. 478-482.

Affiliated with

Also associated with

Rating

Switchable multi-mode transceiver interface device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switchable multi-mode transceiver interface device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switchable multi-mode transceiver interface device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-493630