FR677612A - Récepteur de sons - Google Patents
Récepteur de sonsInfo
- Publication number
- FR677612A FR677612A FR677612DA FR677612A FR 677612 A FR677612 A FR 677612A FR 677612D A FR677612D A FR 677612DA FR 677612 A FR677612 A FR 677612A
- Authority
- FR
- France
- Prior art keywords
- sound receiver
- sound
- receiver
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2051866X | 1928-07-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR677612A true FR677612A (fr) | 1930-03-12 |
Family
ID=7982681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR677612D Expired FR677612A (fr) | 1928-07-16 | 1929-06-28 | Récepteur de sons |
Country Status (2)
Country | Link |
---|---|
US (1) | US2051866A (fr) |
FR (1) | FR677612A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422707A (en) * | 1942-07-29 | 1947-06-24 | Submarine Signal Co | Compressional wave transmitting or receiving device |
US3351900A (en) * | 1965-04-13 | 1967-11-07 | Yamamoto Yujiro | Acoustic transducer for use in dense medium |
-
1929
- 1929-06-24 US US373466A patent/US2051866A/en not_active Expired - Lifetime
- 1929-06-28 FR FR677612D patent/FR677612A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2051866A (en) | 1936-08-25 |
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