FR2536612A1
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for memorising and restoring a sound signal.
Assignee: REALISA AUDIO VISUELLES ET
•
Filing: 1982-11-19
•
Granted: —
•
Expires: 2002-11-19
Abstract
Abstract The device, usable in particular to transmit a hold-on spoken or musical message over a telephone line, comprises a static memory 10 for digital storage of the signal, coded by delta modulation, and controllable means of reading 24-34 and of amplification.
Inventors
- 👤 Guy Policieux
- 👤 Denis Irenee
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 10:30
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/428; H04M3/4285
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.