IL116791A0 - Underwater communications - Google Patents
Underwater communicationsInfo
- Publication number
- IL116791A0 IL116791A0 IL11679196A IL11679196A IL116791A0 IL 116791 A0 IL116791 A0 IL 116791A0 IL 11679196 A IL11679196 A IL 11679196A IL 11679196 A IL11679196 A IL 11679196A IL 116791 A0 IL116791 A0 IL 116791A0
- Authority
- IL
- Israel
- Prior art keywords
- underwater communications
- underwater
- communications
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
- G01S1/725—Marker, boundary, call-sign or like beacons transmitting signals not carrying directional information
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/805—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL11679196A IL116791A0 (en) | 1996-01-16 | 1996-01-16 | Underwater communications |
PCT/IL1997/000020 WO1997026551A1 (en) | 1996-01-16 | 1997-01-14 | Underwater communications |
AU12075/97A AU1207597A (en) | 1996-01-16 | 1997-01-14 | Underwater communications |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL11679196A IL116791A0 (en) | 1996-01-16 | 1996-01-16 | Underwater communications |
Publications (1)
Publication Number | Publication Date |
---|---|
IL116791A0 true IL116791A0 (en) | 1996-05-14 |
Family
ID=11068443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL11679196A IL116791A0 (en) | 1996-01-16 | 1996-01-16 | Underwater communications |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1207597A (en) |
IL (1) | IL116791A0 (en) |
WO (1) | WO1997026551A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6504794B2 (en) * | 2000-03-22 | 2003-01-07 | Summit Industries, Inc. | Tracking, safety and navigation system for firefighters |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3940575A (en) * | 1975-03-03 | 1976-02-24 | Cbs Inc. | Directional microphone |
US3986161A (en) * | 1975-04-07 | 1976-10-12 | Sea-Scan, Inc. | Underwater directional guidance apparatus |
US4862278A (en) * | 1986-10-14 | 1989-08-29 | Eastman Kodak Company | Video camera microphone with zoom variable acoustic focus |
US5010529A (en) * | 1990-04-13 | 1991-04-23 | Maynus Kenneth A | Underwater transmitter apparatus |
-
1996
- 1996-01-16 IL IL11679196A patent/IL116791A0/en unknown
-
1997
- 1997-01-14 WO PCT/IL1997/000020 patent/WO1997026551A1/en active Application Filing
- 1997-01-14 AU AU12075/97A patent/AU1207597A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU1207597A (en) | 1997-08-11 |
WO1997026551A1 (en) | 1997-07-24 |
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