GB1513200A - Apparatus for generating frequency modulated acoustic vibrations under water - Google Patents
Apparatus for generating frequency modulated acoustic vibrations under waterInfo
- Publication number
- GB1513200A GB1513200A GB52327/76A GB5232776A GB1513200A GB 1513200 A GB1513200 A GB 1513200A GB 52327/76 A GB52327/76 A GB 52327/76A GB 5232776 A GB5232776 A GB 5232776A GB 1513200 A GB1513200 A GB 1513200A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transducer
- under water
- frequency modulated
- acoustic vibrations
- generating frequency
- Prior art date
- 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)
- 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 (US08088918-20120103-C00476.png) | 1975-12-17 | 1975-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1513200A true GB1513200A (en) | 1978-06-07 |
Family
ID=4416556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52327/76A Expired GB1513200A (en) | 1975-12-17 | 1976-12-15 | Apparatus for generating frequency modulated acoustic vibrations under water |
Country Status (13)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2119980A (en) * | 1982-05-11 | 1983-11-23 | Madelyn Carrol Freeman | A device for use by a diver to give a signal |
| AU656756B2 (en) * | 1991-01-04 | 1995-02-16 | Jorgen Brosow | Signal-transmission method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413748U (US08088918-20120103-C00476.png) * | 1977-06-30 | 1979-01-29 |
-
1975
- 1975-12-17 CH CH1634875A patent/CH588789A5/xx not_active IP Right Cessation
-
1976
- 1976-12-08 FR FR7636988A patent/FR2336006A1/fr active Granted
- 1976-12-09 ZA ZA767342A patent/ZA767342B/xx unknown
- 1976-12-10 AU AU20464/76A patent/AU504754B2/en not_active Expired
- 1976-12-13 NL NL7613846A patent/NL7613846A/xx not_active Application Discontinuation
- 1976-12-13 ES ES454180A patent/ES454180A1/es not_active Expired
- 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/da not_active Application Discontinuation
- 1976-12-16 BR BR7608462A patent/BR7608462A/pt unknown
- 1976-12-16 DE DE19762656969 patent/DE2656969A1/de not_active Withdrawn
- 1976-12-16 JP JP15183076A patent/JPS5286761A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2119980A (en) * | 1982-05-11 | 1983-11-23 | Madelyn Carrol Freeman | A device for use by a diver to give a signal |
| AU656756B2 (en) * | 1991-01-04 | 1995-02-16 | Jorgen Brosow | Signal-transmission method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2336006B3 (US08088918-20120103-C00476.png) | 1979-01-19 |
| DE2656969A1 (de) | 1977-07-07 |
| JPS5286761A (en) | 1977-07-19 |
| DK565876A (da) | 1977-06-18 |
| NO764241L (US08088918-20120103-C00476.png) | 1977-06-20 |
| ES454180A1 (es) | 1977-12-01 |
| FI763585A (US08088918-20120103-C00476.png) | 1977-06-18 |
| AU2046476A (en) | 1978-06-15 |
| CH588789A5 (US08088918-20120103-C00476.png) | 1977-06-15 |
| AU504754B2 (en) | 1979-10-25 |
| BR7608462A (pt) | 1977-11-29 |
| ZA767342B (en) | 1977-11-30 |
| NL7613846A (nl) | 1977-06-21 |
| FR2336006A1 (fr) | 1977-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |