NL7217601A - - Google Patents
Info
- Publication number
- NL7217601A NL7217601A NL7217601A NL7217601A NL7217601A NL 7217601 A NL7217601 A NL 7217601A NL 7217601 A NL7217601 A NL 7217601A NL 7217601 A NL7217601 A NL 7217601A NL 7217601 A NL7217601 A NL 7217601A
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—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
- H04B1/586—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 using an electronic circuit
-
- 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
- H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
-
- 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
-
- 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
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
-
- 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
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
- H03H11/1286—Sallen-Key biquad
-
- 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
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7200102A FR2166696A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-01-04 | 1972-01-04 | |
| FR7243763A FR2250462A6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-01-04 | 1972-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7217601A true NL7217601A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-07-06 |
Family
ID=26216817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7217601A NL7217601A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-01-04 | 1972-12-22 |
Country Status (8)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2042848B (en) * | 1978-12-30 | 1983-01-06 | Plessey Co Ltd | Line current feed and hybrid arrangement (sytem x) |
| DE2911866C3 (de) * | 1979-03-26 | 1982-03-11 | Siemens AG, 1000 Berlin und 8000 München | Anordnung mit einer Gabelschaltung für den Zweidraht-Vierdraht-Übergang in PCM-Zeitmultiplexsystemen |
| US4358644A (en) * | 1980-06-17 | 1982-11-09 | Rts Systems, Inc. | Bilateral current source for a multi-terminal intercom |
| DE3936894A1 (de) * | 1989-11-06 | 1991-05-08 | Bosch Gmbh Robert | Multiplex-schaltungsanordnung, insbesondere fuer die ansteuerung von verbraucher-stationen in kraftfahrzeugen |
| US6504348B2 (en) * | 2000-01-03 | 2003-01-07 | Harman International Industries, Incorporated | Remote sensing by high-order filtering |
| US7576627B2 (en) * | 2006-04-24 | 2009-08-18 | Bradley University | Electronically tunable active duplexer |
| GB2571732A (en) * | 2018-03-06 | 2019-09-11 | Reid Acoustic Designs Ltd | An apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3180947A (en) * | 1961-09-12 | 1965-04-27 | Sylvania Electric Prod | Electronic bridge hybrid circuit |
| US3480742A (en) * | 1967-03-31 | 1969-11-25 | Bell Telephone Labor Inc | Hybrid circuit |
| US3586881A (en) * | 1967-12-29 | 1971-06-22 | Bell Telephone Labor Inc | Transistor hybrid circuit |
-
1972
- 1972-01-04 FR FR7200102A patent/FR2166696A5/fr not_active Expired
- 1972-12-08 FR FR7243763A patent/FR2250462A6/fr not_active Expired
- 1972-12-22 NL NL7217601A patent/NL7217601A/xx not_active Application Discontinuation
- 1972-12-27 BE BE793381D patent/BE793381A/xx unknown
- 1972-12-29 IT IT71252/72A patent/IT976320B/it active
-
1973
- 1973-01-02 GB GB24073A patent/GB1424381A/en not_active Expired
- 1973-01-03 CH CH473A patent/CH583484A5/xx not_active IP Right Cessation
- 1973-01-09 DE DE2300318A patent/DE2300318A1/de not_active Ceased
-
1974
- 1974-10-21 US US05/516,575 patent/US4001524A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IT976320B (it) | 1974-08-20 |
| FR2250462A6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-05-30 |
| FR2166696A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-17 |
| CH583484A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-12-31 |
| BE793381A (fr) | 1973-04-16 |
| GB1424381A (en) | 1976-02-11 |
| US4001524A (en) | 1977-01-04 |
| DE2300318A1 (de) | 1973-07-12 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |