GB514074A - Electric filter arrangements - Google Patents
Electric filter arrangementsInfo
- Publication number
- GB514074A GB514074A GB29841/38A GB2984138A GB514074A GB 514074 A GB514074 A GB 514074A GB 29841/38 A GB29841/38 A GB 29841/38A GB 2984138 A GB2984138 A GB 2984138A GB 514074 A GB514074 A GB 514074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pass filter
- condensers
- windings
- transformer
- over
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
- H04B3/38—Repeater circuits for signals in two different frequency ranges transmitted in opposite directions over the same transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/77—Wired systems using carrier waves
- H04H20/81—Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
514,074. Distributing music etc; impedance networks. LORENZ AKT.-GES., C. Oct. 14, 1938, No. 29841. Convention date, Oct. 19, 1937. [Class 40 (iv)] [Also in Group XL] In a composite high and low pass filter particularly for use in systems for distributing radio-frequency programmes over the telephone network, the high pass filter comprises a transformer with one or more condensers in series with one or both windings. In the arrangement' shown in the Figure, a telephone line A, B is connected over a low pass filter 2 to a telephone subscriber's set 4 and over a high pass filter 1 to a radio frequency receiver 3. The high pass filter comprises a transformer 16 having split windings with interposed condensers 17, 18. In modifications, condensers may be connected at each end of both windings, at one end of each winding or at one end of the primary winding only, the capacity to ground of the condenser or condensers in the asymmetrical arrangements being compensated by the capacity to ground of the winding or windings of the transformer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE212070X | 1937-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514074A true GB514074A (en) | 1939-10-30 |
Family
ID=5806132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29841/38A Expired GB514074A (en) | 1937-10-19 | 1938-10-14 | Electric filter arrangements |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH212070A (en) |
| FR (1) | FR844608A (en) |
| GB (1) | GB514074A (en) |
| NL (1) | NL56596C (en) |
-
0
- NL NL56596D patent/NL56596C/xx active
-
1938
- 1938-10-03 CH CH212070D patent/CH212070A/en unknown
- 1938-10-11 FR FR844608D patent/FR844608A/en not_active Expired
- 1938-10-14 GB GB29841/38A patent/GB514074A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL56596C (en) | |
| CH212070A (en) | 1940-10-31 |
| FR844608A (en) | 1939-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB471632A (en) | Improvements in and relating to apparatus for electrically analysing the frequencies of oscillations of any kind | |
| GB514064A (en) | Improvements in or relating to electrical wave filters | |
| GB514074A (en) | Electric filter arrangements | |
| GB755219A (en) | Improvements in or relating to impedance transformer networks | |
| GB454346A (en) | Receiving apparatus for carrier wave signalling systems | |
| GB501915A (en) | Telephone exchange systems | |
| GB823608A (en) | Improvements in or relating to echo waveform correctors | |
| GB518120A (en) | Improvements in or relating to transformer coupling arrangements | |
| GB488978A (en) | Electric wave filters | |
| GB528300A (en) | Improvements in or relating to electrical signalling systems | |
| GB570008A (en) | Improvements in electron tube frequency converters | |
| GB524095A (en) | Improvements in or relating to amplitude and phase adjusting networks for alternating current | |
| GB516252A (en) | Improvements in television and like receivers | |
| US2031528A (en) | Wire broadcasting system | |
| GB401600A (en) | Improvements in or relating to high frequency transmitting arrangements | |
| GB605947A (en) | Wide band vacuum-tube amplifiers | |
| GB498627A (en) | Improvements in high frequency signalling systems | |
| GB799666A (en) | Improvements in and relating to the superposition on a heavy current network of audio frequency signal voltages | |
| GB449163A (en) | Improvements in or relating to tuning systems for wireless receivers | |
| GB488254A (en) | Improvements in or relating to electrical wave filters | |
| GB390271A (en) | Improvements in artificial networks for a balancing line or cable impedance | |
| GB829344A (en) | Improvements in or relating to high frequency wave traps | |
| GB674333A (en) | Improvements in transformers and networks for tapping or branching cables carrying two or more frequency bands | |
| GB538814A (en) | Improvements in or relating to phase modulation of high-frequency currents | |
| GB501838A (en) | Improvements in and relating to coupling devices for electric circuits |