BE470229A - - Google Patents
Info
- Publication number
- BE470229A BE470229A BE470229DA BE470229A BE 470229 A BE470229 A BE 470229A BE 470229D A BE470229D A BE 470229DA BE 470229 A BE470229 A BE 470229A
- Authority
- BE
- Belgium
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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/32—Reducing cross-talk, e.g. by compensating
- H04B3/34—Reducing cross-talk, e.g. by compensating by systematic interconnection of lengths of cable during laying; by addition of balancing components to cable during laying
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Rectifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1479841A GB551228A (en) | 1941-11-18 | 1941-11-18 | Improvements in or relating to selective electrical circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE470229A true BE470229A (US08197722-20120612-C00042.png) |
Family
ID=10047667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE470229D BE470229A (US08197722-20120612-C00042.png) | 1941-11-18 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE470229A (US08197722-20120612-C00042.png) |
| GB (1) | GB551228A (US08197722-20120612-C00042.png) |
-
0
- BE BE470229D patent/BE470229A/xx unknown
-
1941
- 1941-11-18 GB GB1479841A patent/GB551228A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB551228A (en) | 1943-02-12 |
