NO125252B - - Google Patents
Download PDFInfo
- Publication number
- NO125252B NO125252B NO432768A NO432768A NO125252B NO 125252 B NO125252 B NO 125252B NO 432768 A NO432768 A NO 432768A NO 432768 A NO432768 A NO 432768A NO 125252 B NO125252 B NO 125252B
- Authority
- NO
- Norway
- Prior art keywords
- code
- frequencies
- circuit
- signal
- frequency
- Prior art date
Links
- 238000001228 spectrum Methods 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 14
- 238000012795 verification Methods 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 8
- 230000004913 activation Effects 0.000 claims 2
- 230000009977 dual effect Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 8
- 238000012790 confirmation Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G7/00—Mine-sweeping; Vessels characterised thereby
- B63G7/02—Mine-sweeping means, Means for destroying mines
- B63G7/08—Mine-sweeping means, Means for destroying mines of acoustic type
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/02—Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Selective Calling Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67978567A | 1967-11-01 | 1967-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO125252B true NO125252B (de) | 1972-08-07 |
Family
ID=24728355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO432768A NO125252B (de) | 1967-11-01 | 1968-10-31 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE723031A (de) |
| DE (1) | DE1804398C3 (de) |
| FR (1) | FR1586552A (de) |
| GB (1) | GB1214050A (de) |
| NL (1) | NL157123B (de) |
| NO (1) | NO125252B (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2207396B1 (de) * | 1972-11-17 | 1976-10-29 | Charbonnages De France | |
| GB2117948A (en) * | 1982-03-22 | 1983-10-19 | Ml Aviation Co Ltd | Initiation of devices by high- frequency sound waves |
| GB8906254D0 (en) * | 1989-03-18 | 1989-05-04 | Edwards Allan R | Improvements in and relating to fishing bite indicators |
-
1968
- 1968-10-21 GB GB4991068A patent/GB1214050A/en not_active Expired
- 1968-10-22 DE DE19681804398 patent/DE1804398C3/de not_active Expired
- 1968-10-28 FR FR1586552D patent/FR1586552A/fr not_active Expired
- 1968-10-28 BE BE723031D patent/BE723031A/xx not_active IP Right Cessation
- 1968-10-31 NO NO432768A patent/NO125252B/no unknown
- 1968-10-31 NL NL6815549A patent/NL157123B/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE1804398B2 (de) | 1978-08-31 |
| FR1586552A (de) | 1970-02-20 |
| BE723031A (de) | 1969-04-01 |
| NL157123B (nl) | 1978-06-15 |
| NL6815549A (de) | 1969-05-05 |
| GB1214050A (en) | 1970-11-25 |
| DE1804398A1 (de) | 1969-07-24 |
| DE1804398C3 (de) | 1979-04-26 |
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