FR2288427B3 - - Google Patents
Info
- Publication number
- FR2288427B3 FR2288427B3 FR7434813A FR7434813A FR2288427B3 FR 2288427 B3 FR2288427 B3 FR 2288427B3 FR 7434813 A FR7434813 A FR 7434813A FR 7434813 A FR7434813 A FR 7434813A FR 2288427 B3 FR2288427 B3 FR 2288427B3
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7434813A FR2288427A1 (fr) | 1974-10-16 | 1974-10-16 | Procede et dispositif pour la transmission d'information en milieu aquatique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7434813A FR2288427A1 (fr) | 1974-10-16 | 1974-10-16 | Procede et dispositif pour la transmission d'information en milieu aquatique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2288427A1 FR2288427A1 (fr) | 1976-05-14 |
| FR2288427B3 true FR2288427B3 (cg-RX-API-DMAC10.html) | 1977-07-22 |
Family
ID=9144174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7434813A Granted FR2288427A1 (fr) | 1974-10-16 | 1974-10-16 | Procede et dispositif pour la transmission d'information en milieu aquatique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2288427A1 (cg-RX-API-DMAC10.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5136555A (en) * | 1991-07-05 | 1992-08-04 | Divecomm, Inc. | Integrated diver face mask and ultrasound underwater voice communication apparatus |
| GB2288479A (en) * | 1994-04-15 | 1995-10-18 | Jeremy Neville Dale | Communication apparatus |
| FR2823710B1 (fr) * | 2001-04-20 | 2003-08-08 | France Telecom | Systeme de telecommunication pour plongeurs sous-marins |
-
1974
- 1974-10-16 FR FR7434813A patent/FR2288427A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2288427A1 (fr) | 1976-05-14 |