JPS49132911A - - Google Patents
Info
- Publication number
- JPS49132911A JPS49132911A JP48086908A JP8690873A JPS49132911A JP S49132911 A JPS49132911 A JP S49132911A JP 48086908 A JP48086908 A JP 48086908A JP 8690873 A JP8690873 A JP 8690873A JP S49132911 A JPS49132911 A JP S49132911A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/04—Adaptation for subterranean or subaqueous use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/203—Leaky coaxial lines
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Waveguide Aerials (AREA)
- Communication Cables (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Details Of Aerials (AREA)
- Near-Field Transmission Systems (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE85381 | 1970-02-18 | ||
| BE120619 | 1972-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS49132911A true JPS49132911A (OSRAM) | 1974-12-20 |
Family
ID=25647495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48086908A Pending JPS49132911A (OSRAM) | 1970-02-18 | 1973-08-03 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3829767A (OSRAM) |
| JP (1) | JPS49132911A (OSRAM) |
| BE (1) | BE787158R (OSRAM) |
| DE (1) | DE2337949C3 (OSRAM) |
| FR (1) | FR2195126B2 (OSRAM) |
| GB (1) | GB1434975A (OSRAM) |
| LU (1) | LU68137A1 (OSRAM) |
| NL (1) | NL173337C (OSRAM) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4001774A (en) * | 1975-01-08 | 1977-01-04 | Exxon Production Research Company | Method of transmitting signals from a drill bit to the surface |
| US4023136A (en) * | 1975-06-09 | 1977-05-10 | Sperry Rand Corporation | Borehole telemetry system |
| US4476574A (en) * | 1980-09-17 | 1984-10-09 | The United States Of America As Represented By The United States Department Of Energy | Radio frequency communication system utilizing radiating transmission lines |
| CA1280487C (en) * | 1986-11-06 | 1991-02-19 | Senstar-Stellar Corporation | Intrusion detection system |
| CA1280488C (en) * | 1986-11-06 | 1991-02-19 | Control Data Canada Limited | Perimeter intrusion detection system with block ranging capability |
| DE102008063458B4 (de) * | 2008-12-17 | 2012-03-15 | Siemens Aktiengesellschaft | Mantelwellensperre, Magnetresonanztomographie-Einrichtung mit Mantelwellensperre und Verwendung der Mantelwellensperre in einer solchen Einrichtung |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2082842A5 (OSRAM) * | 1970-03-27 | 1971-12-10 | Boulore Christian |
-
1972
- 1972-08-03 BE BE787158A patent/BE787158R/xx active
-
1973
- 1973-06-28 US US00374654A patent/US3829767A/en not_active Expired - Lifetime
- 1973-07-25 NL NLAANVRAGE7310334,A patent/NL173337C/xx active Search and Examination
- 1973-07-26 GB GB3565073A patent/GB1434975A/en not_active Expired
- 1973-07-26 DE DE2337949A patent/DE2337949C3/de not_active Expired
- 1973-07-27 FR FR7327564A patent/FR2195126B2/fr not_active Expired
- 1973-08-01 LU LU68137A patent/LU68137A1/xx unknown
- 1973-08-03 JP JP48086908A patent/JPS49132911A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1434975A (en) | 1976-05-12 |
| FR2195126B2 (OSRAM) | 1977-05-13 |
| DE2337949C3 (de) | 1978-11-30 |
| US3829767A (en) | 1974-08-13 |
| FR2195126A2 (OSRAM) | 1974-03-01 |
| NL173337B (nl) | 1983-08-01 |
| DE2337949B2 (de) | 1974-08-08 |
| DE2337949A1 (de) | 1974-02-21 |
| NL7310334A (OSRAM) | 1974-02-05 |
| BE787158R (fr) | 1972-12-01 |
| NL173337C (nl) | 1984-01-02 |
| LU68137A1 (OSRAM) | 1973-10-16 |