CH567347A5 - - Google Patents
Info
- Publication number
- CH567347A5 CH567347A5 CH621374A CH621374A CH567347A5 CH 567347 A5 CH567347 A5 CH 567347A5 CH 621374 A CH621374 A CH 621374A CH 621374 A CH621374 A CH 621374A CH 567347 A5 CH567347 A5 CH 567347A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
- H03H11/1252—Two integrator-loop-filters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00365530A US3806824A (en) | 1973-05-31 | 1973-05-31 | Center frequency and bandwidth selection circuit for a frequency selective amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
CH567347A5 true CH567347A5 (sv) | 1975-09-30 |
Family
ID=23439242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH621374A CH567347A5 (sv) | 1973-05-31 | 1974-05-07 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3806824A (sv) |
JP (1) | JPS5033753A (sv) |
CA (1) | CA1009320A (sv) |
CH (1) | CH567347A5 (sv) |
DE (1) | DE2421636A1 (sv) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0599327A1 (en) * | 1992-11-25 | 1994-06-01 | Nec Corporation | Variable gain amplifier |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4578533A (en) * | 1980-11-03 | 1986-03-25 | Universal Data Systems, Inc. | Switchable line powered modem |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2059728C3 (de) * | 1970-12-04 | 1973-09-20 | Wandel U. Goltermann, 7410 Reutlingen | Spulenloser Dampfungs und Lauf zeitentzerrer |
-
1973
- 1973-05-31 US US00365530A patent/US3806824A/en not_active Expired - Lifetime
-
1974
- 1974-05-04 DE DE2421636A patent/DE2421636A1/de not_active Withdrawn
- 1974-05-07 CH CH621374A patent/CH567347A5/xx not_active IP Right Cessation
- 1974-05-21 CA CA200,438A patent/CA1009320A/en not_active Expired
- 1974-05-31 JP JP49061018A patent/JPS5033753A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0599327A1 (en) * | 1992-11-25 | 1994-06-01 | Nec Corporation | Variable gain amplifier |
Also Published As
Publication number | Publication date |
---|---|
JPS5033753A (sv) | 1975-04-01 |
US3806824A (en) | 1974-04-23 |
CA1009320A (en) | 1977-04-26 |
DE2421636A1 (de) | 1974-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |