FR2189950B1 - - Google Patents
Info
- Publication number
- FR2189950B1 FR2189950B1 FR7222799A FR7222799A FR2189950B1 FR 2189950 B1 FR2189950 B1 FR 2189950B1 FR 7222799 A FR7222799 A FR 7222799A FR 7222799 A FR7222799 A FR 7222799A FR 2189950 B1 FR2189950 B1 FR 2189950B1
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/12—Frequency diversity
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 (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7222799A FR2189950B1 (US20100012521A1-20100121-C00001.png) | 1972-06-23 | 1972-06-23 | |
US371599A US3893062A (en) | 1972-06-23 | 1973-06-20 | Transmission system |
DE2331591A DE2331591C3 (de) | 1972-06-23 | 1973-06-20 | Verfahren zur Übertragung von Unterwasser-Signalen |
GB3011473A GB1445733A (en) | 1972-06-23 | 1973-06-25 | Underwater transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7222799A FR2189950B1 (US20100012521A1-20100121-C00001.png) | 1972-06-23 | 1972-06-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2189950A1 FR2189950A1 (US20100012521A1-20100121-C00001.png) | 1974-01-25 |
FR2189950B1 true FR2189950B1 (US20100012521A1-20100121-C00001.png) | 1977-04-01 |
Family
ID=9100715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7222799A Expired FR2189950B1 (US20100012521A1-20100121-C00001.png) | 1972-06-23 | 1972-06-23 |
Country Status (4)
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2139788B (en) * | 1983-01-10 | 1986-11-19 | Dollman Electronics Limited | Underwater communication |
DE60030296T2 (de) * | 2000-11-10 | 2007-08-30 | Datalogic S.P.A., Lippo Di Calderara Di Reno | Vorrichtung zum Lesen kodierter Informationen |
JP3973630B2 (ja) * | 2004-01-20 | 2007-09-12 | シャープ株式会社 | データ伝送装置およびデータ伝送方法 |
GB2415113B (en) * | 2004-06-12 | 2006-10-18 | Sonardyne Internat Ltd | Robust underwater communication system |
TWI578306B (zh) * | 2015-06-10 | 2017-04-11 | 微物聯科技有限公司 | 混頻式聲波控制系統及其方法與內儲混頻式聲波控制程式之電腦程式產品 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2399469A (en) * | 1940-07-31 | 1946-04-30 | Gen Electric | Secret signaling system |
US2448055A (en) * | 1944-02-21 | 1948-08-31 | Standard Telephones Cables Ltd | Wobbled frequency carrier wave communication system |
US3466652A (en) * | 1968-01-15 | 1969-09-09 | California Inst Of Techn | Time delay spectrometer |
-
1972
- 1972-06-23 FR FR7222799A patent/FR2189950B1/fr not_active Expired
-
1973
- 1973-06-20 DE DE2331591A patent/DE2331591C3/de not_active Expired
- 1973-06-20 US US371599A patent/US3893062A/en not_active Expired - Lifetime
- 1973-06-25 GB GB3011473A patent/GB1445733A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2331591B2 (de) | 1974-10-10 |
DE2331591C3 (de) | 1975-05-22 |
FR2189950A1 (US20100012521A1-20100121-C00001.png) | 1974-01-25 |
US3893062A (en) | 1975-07-01 |
DE2331591A1 (de) | 1974-01-03 |
GB1445733A (en) | 1976-08-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |