GB244400A - Method of and means for reproducing the apparent resistance or impedance of long loaded lines - Google Patents
Method of and means for reproducing the apparent resistance or impedance of long loaded linesInfo
- Publication number
- GB244400A GB244400A GB1080525A GB1080525A GB244400A GB 244400 A GB244400 A GB 244400A GB 1080525 A GB1080525 A GB 1080525A GB 1080525 A GB1080525 A GB 1080525A GB 244400 A GB244400 A GB 244400A
- Authority
- GB
- United Kingdom
- Prior art keywords
- artificial
- line
- condensers
- reproducing
- impedance
- 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)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
244,400. Siemens & Halske Akt.-Ges. Dec. 9, 1924, [Convention date]. Addition to 234,463. Artificial lines. - The artificial line constructed in accordance with the parent Specification, that is, having a lower inductance-capacity product than the corresponding working line while the inductancecapacity quotient is the same as that of the working line, is made asymmetrical, the condensers C1, C2 being unequal. It is stated that this arrangement gives an improved imitation of the imaginary part of the resistance of the cable for the higher speech frequencies. A similar improvement for the lower frequencies may be effected by adding a small condenser Co in front of the network. It is stated that the artificial line can imitate a repeater for ringing currents and the accessory condensers for shutting off such currents, and that a cable extended by artificial lines can be similarly imitated.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES66116D DE486775C (en) | 1924-05-22 | 1924-05-22 | Simulation of the impedance of Pupin lines |
DES68044D DE495883C (en) | 1924-05-22 | 1924-12-09 | Simulation of the impedance of Pupin lines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB244400A true GB244400A (en) | 1926-07-22 |
Family
ID=25995921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1080525A Expired GB244400A (en) | 1924-05-22 | 1925-04-25 | Method of and means for reproducing the apparent resistance or impedance of long loaded lines |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH130804A (en) |
DE (1) | DE495883C (en) |
FR (1) | FR596889A (en) |
GB (1) | GB244400A (en) |
NL (1) | NL17636C (en) |
-
0
- NL NL17636D patent/NL17636C/xx active
-
1924
- 1924-12-09 DE DES68044D patent/DE495883C/en not_active Expired
-
1925
- 1925-04-01 CH CH130804D patent/CH130804A/en unknown
- 1925-04-18 FR FR596889D patent/FR596889A/en not_active Expired
- 1925-04-25 GB GB1080525A patent/GB244400A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE495883C (en) | 1930-04-24 |
NL17636C (en) | |
FR596889A (en) | 1925-11-03 |
CH130804A (en) | 1928-12-31 |
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