GB780177A - Improvements in or relating to negative impedance converters - Google Patents
Improvements in or relating to negative impedance convertersInfo
- Publication number
- GB780177A GB780177A GB7958/55A GB795855A GB780177A GB 780177 A GB780177 A GB 780177A GB 7958/55 A GB7958/55 A GB 7958/55A GB 795855 A GB795855 A GB 795855A GB 780177 A GB780177 A GB 780177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terminals
- line
- negative impedance
- resistors
- march
- 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
- H04B3/04—Control of transmission; Equalising
- H04B3/16—Control of transmission; Equalising characterised by the negative-impedance network used
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US417650A US2817822A (en) | 1954-03-22 | 1954-03-22 | Negative impedance converter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB780177A true GB780177A (en) | 1957-07-31 |
Family
ID=23654858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7958/55A Expired GB780177A (en) | 1954-03-22 | 1955-03-18 | Improvements in or relating to negative impedance converters |
Country Status (7)
Country | Link |
---|---|
US (1) | US2817822A (de) |
BE (1) | BE536601A (de) |
CH (1) | CH330330A (de) |
DE (1) | DE974956C (de) |
FR (1) | FR1117757A (de) |
GB (1) | GB780177A (de) |
NL (2) | NL100386C (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3001156A (en) * | 1958-12-01 | 1961-09-19 | Bell Telephone Labor Inc | Active impedance branch |
US3141138A (en) * | 1960-10-24 | 1964-07-14 | Kokusai Denshin Denwa Co Ltd | Unidirectional amplifier consisting of concatenated bidirectional negative resistance amplifiers which are coupled by delay networks and energized sequentially |
US3045194A (en) * | 1960-11-02 | 1962-07-17 | Bell Telephone Labor Inc | Active multiport networks |
GB1051283A (de) * | 1964-04-15 | |||
US3546639A (en) * | 1966-11-01 | 1970-12-08 | Ass Elect Ind | Gyrator network |
US3514711A (en) * | 1969-05-05 | 1970-05-26 | Ericsson Telefon Ab L M | Amplifier circuit including a lossless transmission line |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1937641A (en) * | 1931-09-03 | 1933-12-05 | American Telephone & Telegraph | Multiway connection for signaling circuits |
US1969836A (en) * | 1932-10-27 | 1934-08-14 | Mihran M Dolmage | Negative impedance |
US2287280A (en) * | 1939-06-30 | 1942-06-23 | Int Standard Electric Corp | Detection arrangement and negative impedance for same |
BE518902A (de) * | 1952-09-19 |
-
0
- NL NL192904D patent/NL192904A/xx unknown
- BE BE536601D patent/BE536601A/xx unknown
- NL NL100386D patent/NL100386C/xx active
-
1954
- 1954-03-22 US US417650A patent/US2817822A/en not_active Expired - Lifetime
- 1954-12-22 FR FR1117757D patent/FR1117757A/fr not_active Expired
-
1955
- 1955-01-20 DE DEW15779A patent/DE974956C/de not_active Expired
- 1955-03-18 GB GB7958/55A patent/GB780177A/en not_active Expired
- 1955-03-22 CH CH330330D patent/CH330330A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US2817822A (en) | 1957-12-24 |
NL192904A (de) | |
DE974956C (de) | 1961-06-15 |
BE536601A (de) | |
FR1117757A (fr) | 1956-05-28 |
CH330330A (fr) | 1958-05-31 |
NL100386C (de) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3089097A (en) | Direct current amplifiers | |
GB780177A (en) | Improvements in or relating to negative impedance converters | |
NO149158B (no) | Forsterkningsreguleringskobling. | |
GB697578A (en) | Improvements in or relating to time-integrating arrangements | |
GB1500442A (en) | Subscriber telephone sets | |
JPS5587052A (en) | Measuring circuit for instantaneous power | |
JPS55133121A (en) | Conversion circuit of two to four lines | |
JPS5654160A (en) | Interface circuit for subscribing line | |
ES8204893A1 (es) | Una disposicion amplificadora de senales | |
GB635305A (en) | Mounting arrangements for discharge tubes | |
ES440331A1 (es) | Repetidor a impedancia negativa con compuestos heterocicli- cos derivados de doble amplificacion para linea telefnica a frecuencia vocal. | |
SU400972A1 (ru) | Усилительное устройство | |
US3184687A (en) | Push-pull power amplifier | |
JPS5510220A (en) | Divider circuit | |
GB765683A (en) | Improvements relating to electrical amplifiers | |
JPS5660157A (en) | Call-current supplying circuit | |
JPS5632836A (en) | Electronic hybrid circuit | |
JPS5675712A (en) | Power amplifier | |
JPS56168411A (en) | Negative impedance circuit | |
JPS57196610A (en) | Amplitude suppressing circuit | |
JPS55134571A (en) | Subscriber's circuit | |
JPS5696307A (en) | Constant-current circuit | |
GB862999A (en) | Monitoring equipment | |
GB722428A (en) | Improvements relating to thermionic valve amplifying circuit arrangements | |
GB917689A (en) | Improved amplifying, impedance changing or level-changing apparatus |