GB635381A - Improvements in electrical networks for echo and like correction in electrical signalling systems - Google Patents
Improvements in electrical networks for echo and like correction in electrical signalling systemsInfo
- Publication number
- GB635381A GB635381A GB2587247A GB2587247A GB635381A GB 635381 A GB635381 A GB 635381A GB 2587247 A GB2587247 A GB 2587247A GB 2587247 A GB2587247 A GB 2587247A GB 635381 A GB635381 A GB 635381A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- echo
- delay
- networks
- electrical
- 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
- H04B3/40—Artificial lines; Networks simulating a line of certain length
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
635,381. Waveform correcting networks. GENERAL ELECTRIC CO., Ltd., ESPLEY, D. C., and CLAYTON, R. J. Sept. 23, 1947, No. 25872. [Class 40 (viii)] A correcting network to compensate for one or more echoes and adapted to be fed from a constant current source comprises a parallel arrangement of a resistance r0 and, corresponding to each echo a resistance r1 in series with the input of a delay network of delay time equal to the delay of the echo with respect to the wanted signal and terminated by a resistance r2. The delay networks may be in the form of coaxial lines, Fig. 5, and each arm may be short or open-circuited according to the required phase of the correcting signal. If the sum of the amplitudes of the echoes is equal to the amplitude of the wanted signal, the resistance ro is omitted. In a modification for use with a low impedance signal sources, Fig. 7 (b), the resistance of the source ra and the resistance of the output circuit rb and any other shunt resistance in parallel is made equivalent to the resistance ro. Specifications 630,200, [Group XL (c)], and 635,287 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2587247A GB635381A (en) | 1947-09-23 | 1947-09-23 | Improvements in electrical networks for echo and like correction in electrical signalling systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2587247A GB635381A (en) | 1947-09-23 | 1947-09-23 | Improvements in electrical networks for echo and like correction in electrical signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB635381A true GB635381A (en) | 1950-04-05 |
Family
ID=10234744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2587247A Expired GB635381A (en) | 1947-09-23 | 1947-09-23 | Improvements in electrical networks for echo and like correction in electrical signalling systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB635381A (en) |
-
1947
- 1947-09-23 GB GB2587247A patent/GB635381A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB641279A (en) | Improvements in or relating to circuit-arrangements for influencing electrically thepropagation constant of a network | |
| GB587939A (en) | Improvements in or relating to multi-channel electrical pulse communication systems | |
| GB656023A (en) | Improvements in time division multiplex communication systems | |
| ES422597A1 (en) | Method and apparatus for amplifying signal transmission through transmission lines | |
| GB606550A (en) | Time-delay transmission line | |
| GB630095A (en) | Improvements in or relating to signalling systems | |
| GB635381A (en) | Improvements in electrical networks for echo and like correction in electrical signalling systems | |
| GB707199A (en) | Valve clipping circuit | |
| GB817747A (en) | Improvements in or relating to pulse correcting circuit arrangements | |
| GB627410A (en) | Hybrid transformer for very high frequencies | |
| GB636620A (en) | Improvements in or relating to attenuation equalizers | |
| GB627057A (en) | Improvements in or relating to circuit arrangements for use in examining and observing electrical waves and variations | |
| GB823608A (en) | Improvements in or relating to echo waveform correctors | |
| GB1164542A (en) | A Distance Relay Having Quadrilateral Characteristics | |
| GB600254A (en) | Improvements in or relating to multiplex electric pulse communication systems | |
| GB635287A (en) | Improvements in electrical networks for echo correction in electrical signalling systems | |
| GB582885A (en) | Improvements in or relating to apparatus for measuring the duration of electric impulses or signals | |
| GB639164A (en) | Electrical networks for the suppression of echoes and the like in electrical signalling systems | |
| US1477899A (en) | High-frequency signaling system | |
| GB776637A (en) | Improvements in or relating to disc-shaped spacing members for coaxial high-frequency transmission lines | |
| GB670170A (en) | Improvements relating to electrical compression networks | |
| GB975944A (en) | Improvements in or relating to electric pulse transmission systems | |
| GB615355A (en) | Transmission line bridge circuits | |
| GB867499A (en) | Improvements relating to networks for distributing electrical signals | |
| GB531104A (en) | Electric signal transmission systems |