Data set diagnostic system

Pulse or digital communications – Repeaters – Testing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

375 10, 371 15, 179 2DP, H03K 1332

Patent

active

044981864

ABSTRACT:
A voiceband data set network includes a control data set (10), a plurality of tributary data sets (4a, 4b . . . 4n) and a diagnostic control device (5). User-provided data is communicated between the control data set and the tributary data sets via a primary channel within a four-wire private telephone line (11, 12). Diagnostic and control information is communicated between the control data set and the tributaries via a secondary channel within the private line. Diagnostic and control information is communicated between the diagnostic control device and the control data set, with which it is co-located, via a control channel. Each data set includes a data set diagnostic unit (50), or DDU, via which it transmits and receives the diagnostic and control information. Communications among the DCD, DDUs, and primary controllers within the data sets, are carried out on a link-by-link basis, with the DDUs serving as message switching nodes and with communications over each link being principally comprised of requests and reads. The DCD, DDUs and primary controllers communicate in a hierarchy in which requests and reads are always directed downstream. The tributary data sets are provided, however, with a way of directing request-type message texts upstream.

REFERENCES:
patent: Re30037 (1979-06-01), Bass
patent: 3743938 (1973-07-01), Davis
patent: 3787810 (1974-01-01), Wiggins et al.
patent: 3910322 (1975-10-01), Hardesty, Jr. et al.
patent: 3914743 (1975-10-01), Fitch et al.
patent: 4046964 (1977-09-01), Daugherty et al.
patent: 4055808 (1977-10-01), Holsinger et al.
patent: 4245342 (1981-01-01), Entenman
patent: 4273955 (1981-06-01), Armstrong
patent: 4311882 (1982-01-01), Johner et al.
patent: 4317207 (1982-02-01), Fujimura et al.
patent: 4351059 (1982-09-01), Gregoire et al.
patent: 4398297 (1983-08-01), Hwang et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Data set diagnostic system 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 set diagnostic system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data set diagnostic system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2085745

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.