← Back to Patent Explorer
FR2551278A1 Expired / Lapsed FR ⏱️ 0.0 years remaining

Device for access by several sets to a single communication channel.

Assignee: Apsis SAS
•
Filing: 1983-08-26
•
Granted: —
•
Expires: 2003-08-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract In a single-channel system for communication between several sets, each includes a central unit 1 with memory 2, equipment 3, transmission-reception coupler 5, a first detector monitoring the state of the channel 4, and a second 7 able to sense collisions. When one such appears, a scrambling signal blocks all the sets and imposes a standby period on them which, on the one hand is a function of the priority of the message to be sent, and on the other is situated, for each priority command, in a random manner in a particular time zone. In the case of a new collision following the first, the delay period is doubled.

Inventors

  • 👤 Claude Otrage
  • 👤 Gerald Dulac
  • 👤 Andre Peyrache
  • 👤 Edouard Melloul

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-10-28 14:23
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/40; H04L12/407; H04L12/413

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US4063220A Cited
DE3209037A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag