ZA767342B - Apparatus for underwater emission of frequency modulated vibrations - Google Patents
Apparatus for underwater emission of frequency modulated vibrationsInfo
- Publication number
- ZA767342B ZA767342B ZA767342A ZA767342A ZA767342B ZA 767342 B ZA767342 B ZA 767342B ZA 767342 A ZA767342 A ZA 767342A ZA 767342 A ZA767342 A ZA 767342A ZA 767342 B ZA767342 B ZA 767342B
- Authority
- ZA
- South Africa
- Prior art keywords
- frequency modulated
- underwater emission
- modulated vibrations
- vibrations
- underwater
- Prior art date
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)
- Physical Water Treatments (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1634875A CH588789A5 (en) | 1975-12-17 | 1975-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA767342B true ZA767342B (en) | 1977-11-30 |
Family
ID=4416556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA767342A ZA767342B (en) | 1975-12-17 | 1976-12-09 | Apparatus for underwater emission of frequency modulated vibrations |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5286761A (en) |
| AU (1) | AU504754B2 (en) |
| BR (1) | BR7608462A (en) |
| CH (1) | CH588789A5 (en) |
| DE (1) | DE2656969A1 (en) |
| DK (1) | DK565876A (en) |
| ES (1) | ES454180A1 (en) |
| FI (1) | FI763585A (en) |
| FR (1) | FR2336006A1 (en) |
| GB (1) | GB1513200A (en) |
| NL (1) | NL7613846A (en) |
| NO (1) | NO764241L (en) |
| ZA (1) | ZA767342B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413748U (en) * | 1977-06-30 | 1979-01-29 | ||
| GB2119980B (en) * | 1982-05-11 | 1985-10-16 | Madelyn Carrol Freeman | A device for use by a diver to give a signal |
| BR9107194A (en) * | 1991-01-04 | 1994-06-14 | Brosow Joergen | Process and device for transmitting an information signal |
-
1975
- 1975-12-17 CH CH1634875A patent/CH588789A5/xx not_active IP Right Cessation
-
1976
- 1976-12-08 FR FR7636988A patent/FR2336006A1/en active Granted
- 1976-12-09 ZA ZA767342A patent/ZA767342B/en unknown
- 1976-12-10 AU AU20464/76A patent/AU504754B2/en not_active Expired
- 1976-12-13 ES ES454180A patent/ES454180A1/en not_active Expired
- 1976-12-13 NL NL7613846A patent/NL7613846A/en not_active Application Discontinuation
- 1976-12-14 FI FI763585A patent/FI763585A/fi not_active Application Discontinuation
- 1976-12-14 NO NO764241A patent/NO764241L/no unknown
- 1976-12-15 GB GB52327/76A patent/GB1513200A/en not_active Expired
- 1976-12-16 DK DK565876A patent/DK565876A/en not_active Application Discontinuation
- 1976-12-16 DE DE19762656969 patent/DE2656969A1/en not_active Withdrawn
- 1976-12-16 JP JP15183076A patent/JPS5286761A/en active Pending
- 1976-12-16 BR BR7608462A patent/BR7608462A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES454180A1 (en) | 1977-12-01 |
| FR2336006B3 (en) | 1979-01-19 |
| BR7608462A (en) | 1977-11-29 |
| AU504754B2 (en) | 1979-10-25 |
| AU2046476A (en) | 1978-06-15 |
| GB1513200A (en) | 1978-06-07 |
| CH588789A5 (en) | 1977-06-15 |
| FR2336006A1 (en) | 1977-07-15 |
| FI763585A (en) | 1977-06-18 |
| DE2656969A1 (en) | 1977-07-07 |
| DK565876A (en) | 1977-06-18 |
| NL7613846A (en) | 1977-06-21 |
| JPS5286761A (en) | 1977-07-19 |
| NO764241L (en) | 1977-06-20 |
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