GB318608A - - Google Patents
Info
- Publication number
- GB318608A GB318608A GB15517/29A GB1551729A GB318608A GB 318608 A GB318608 A GB 318608A GB 15517/29 A GB15517/29 A GB 15517/29A GB 1551729 A GB1551729 A GB 1551729A GB 318608 A GB318608 A GB 318608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filters
- compensator
- hand position
- filter
- electroacustic
- 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)
- Mobile Radio Communication Systems (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE316863X | 1928-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB318608A true GB318608A (enrdf_load_stackoverflow) | 1930-07-31 |
Family
ID=6150585
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13974/29A Expired GB316863A (en) | 1928-08-04 | 1929-05-04 | Acoustic direction determining device |
GB15517/29A Expired GB318608A (enrdf_load_stackoverflow) | 1928-08-04 | 1929-05-17 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13974/29A Expired GB316863A (en) | 1928-08-04 | 1929-05-04 | Acoustic direction determining device |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB316863A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746532C (de) * | 1937-09-17 | 1944-12-23 | Einrichtung zur Richtungsbestimmung von Schallquellen mit Hilfe der in ihnen enthaltenen hohen Frequenzen |
-
1929
- 1929-05-04 GB GB13974/29A patent/GB316863A/en not_active Expired
- 1929-05-17 GB GB15517/29A patent/GB318608A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB316863A (en) | 1930-07-31 |
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