GB1411698A - Frequency-sensitive circuits - Google Patents
Frequency-sensitive circuitsInfo
- Publication number
- GB1411698A GB1411698A GB2299973A GB2299973A GB1411698A GB 1411698 A GB1411698 A GB 1411698A GB 2299973 A GB2299973 A GB 2299973A GB 2299973 A GB2299973 A GB 2299973A GB 1411698 A GB1411698 A GB 1411698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- input
- capacitors
- arm
- switching
- frequency
- 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
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H19/00—Networks using time-varying elements, e.g. N-path filters
- H03H19/002—N-path filters
Landscapes
- Networks Using Active Elements (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Amplifiers (AREA)
- Filters And Equalizers (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25438472A | 1972-05-18 | 1972-05-18 | |
| US27448872A | 1972-07-24 | 1972-07-24 | |
| US27901972A | 1972-08-09 | 1972-08-09 | |
| US30874072A | 1972-11-22 | 1972-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1411698A true GB1411698A (en) | 1975-11-05 |
Family
ID=27500508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2299973A Expired GB1411698A (en) | 1972-05-18 | 1973-05-15 | Frequency-sensitive circuits |
Country Status (15)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867620A (en) * | 1973-01-26 | 1975-02-18 | Princeton Applied Res Corp | Signal correlator with improved dynamic range |
| US3846582A (en) * | 1973-08-06 | 1974-11-05 | Bell Telephone Labor Inc | Data transmission terminal for fsk frequency duplexed systems |
| US3890577A (en) * | 1973-08-15 | 1975-06-17 | Westinghouse Air Brake Co | Vital active low-pass filter |
| FR2281003A1 (fr) * | 1974-08-02 | 1976-02-27 | Commissariat Energie Atomique | Procede de traitement d'un signal et dispositifs correspondants |
| IT1035117B (it) * | 1975-03-28 | 1979-10-20 | Selenta Ind Elettroniche Assoc | Dispositivo ad alta stabilita per il filtraggio e la discriminayione in frequenza di un segnale elettrico |
| US3979690A (en) * | 1975-04-29 | 1976-09-07 | Westinghouse Electric Corporation | Failsafe controlled gain inverting amplifier apparatus |
| US4039979A (en) * | 1975-06-18 | 1977-08-02 | Bell Telephone Laboratories, Incorporated | Reduction of aliasing distortion in sampled signals |
| US4224582A (en) * | 1978-10-19 | 1980-09-23 | Bell Telephone Laboratories, Incorporated | Commutating capacitive envelope detector |
| US4298970A (en) * | 1979-08-10 | 1981-11-03 | Sperry-Sun, Inc. | Borehole acoustic telemetry system synchronous detector |
| DE3022252C2 (de) * | 1980-06-13 | 1983-06-23 | Siemens AG, 1000 Berlin und 8000 München | Elektrische Filterschaltung zur Verarbeitung analoger Abtastsignale |
| US4336513A (en) * | 1980-07-02 | 1982-06-22 | Hewlett-Packard Company | Hum reduction circuit |
| NL8302482A (nl) * | 1983-07-12 | 1985-02-01 | Philips Nv | Bandsperfilter van het geschakelde capaciteiten type. |
| US4518936A (en) * | 1983-11-14 | 1985-05-21 | Rca Corporation | Commutating filter passing only the fundamental frequency and odd harmonics thereof |
| US6611150B1 (en) | 1999-03-31 | 2003-08-26 | Sadelco, Inc. | Leakage detector for use in combination with a signal level meter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2439255A (en) * | 1942-09-09 | 1948-04-06 | Gen Electric | Capacitor switch |
| US2521690A (en) * | 1945-08-14 | 1950-09-12 | Standard Telephones Cables Ltd | Secrecy preserving signaling system |
| US2584986A (en) * | 1946-04-24 | 1952-02-12 | Fed Telephone & Radio Corp | Selective wave filter |
| US2752491A (en) * | 1954-09-16 | 1956-06-26 | Collins Radio Co | Phase insensitive synchronously tuned filter |
| US3375451A (en) * | 1965-06-17 | 1968-03-26 | Nasa Usa | Adaptive tracking notch filter system |
| US3403345A (en) * | 1965-07-19 | 1968-09-24 | Sperry Rand Corp | Tunable narrow-band rejection filter employing coherent demodulation |
| DE1275218B (de) * | 1965-10-23 | 1968-08-14 | Siemens Ag | Frequenzfilter, insbesondere fuer Zeitmultiplexsysteme |
| CH472149A (de) * | 1967-03-22 | 1969-04-30 | Siemens Ag | N-Pfad-Bandfilter |
| US3469213A (en) * | 1967-05-16 | 1969-09-23 | United Aircraft Corp | Dynamic transfer networks |
| AU1418870A (en) * | 1969-05-09 | 1971-10-28 | Amalgamated Wireless (Australasia) Limited | Improvements in or relating to electrical circuits |
-
1972
- 1972-05-18 US US00254384A patent/US3729695A/en not_active Expired - Lifetime
- 1972-07-24 US US00274488A patent/US3758884A/en not_active Expired - Lifetime
- 1972-08-09 US US00279019A patent/US3753169A/en not_active Expired - Lifetime
- 1972-11-22 US US00308740A patent/US3774125A/en not_active Expired - Lifetime
- 1972-12-01 CA CA158,448A patent/CA970049A/en not_active Expired
-
1973
- 1973-01-30 CA CA162,422A patent/CA979985A/en not_active Expired
- 1973-03-06 CA CA165,370A patent/CA979084A/en not_active Expired
- 1973-05-10 SE SE7306589A patent/SE388517B/xx unknown
- 1973-05-11 AT AT418073A patent/AT338337B/de not_active IP Right Cessation
- 1973-05-12 DE DE2324156A patent/DE2324156A1/de not_active Withdrawn
- 1973-05-14 AU AU55649/73A patent/AU473689B2/en not_active Expired
- 1973-05-14 NL NL7306686A patent/NL7306686A/xx not_active Application Discontinuation
- 1973-05-15 CH CH688073A patent/CH564287A5/xx not_active IP Right Cessation
- 1973-05-15 GB GB2299973A patent/GB1411698A/en not_active Expired
- 1973-05-16 NO NO2029/73A patent/NO136555C/no unknown
- 1973-05-17 BE BE131202A patent/BE799650A/xx not_active IP Right Cessation
- 1973-05-17 FR FR7318003A patent/FR2185011B1/fr not_active Expired
- 1973-05-17 FI FI1609/73A patent/FI54663C/fi active
- 1973-05-17 IT IT68446/73A patent/IT985925B/it active
- 1973-05-18 JP JP5477073A patent/JPS5727612B2/ja not_active Expired
- 1973-09-14 CA CA181,136A patent/CA979986A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3729695A (en) | 1973-04-24 |
| FI54663C (fi) | 1979-01-10 |
| FR2185011B1 (US20100170793A1-20100708-C00006.png) | 1976-05-07 |
| JPS4957747A (US20100170793A1-20100708-C00006.png) | 1974-06-05 |
| JPS5727612B2 (US20100170793A1-20100708-C00006.png) | 1982-06-11 |
| CA979986A (en) | 1975-12-16 |
| NO136555B (US20100170793A1-20100708-C00006.png) | 1977-06-13 |
| AT338337B (de) | 1977-08-25 |
| CH564287A5 (US20100170793A1-20100708-C00006.png) | 1975-07-15 |
| IT985925B (it) | 1974-12-30 |
| DE2324156A1 (de) | 1973-11-29 |
| AU5564973A (en) | 1974-11-14 |
| CA970049A (en) | 1975-06-24 |
| CA979084A (en) | 1975-12-02 |
| NO136555C (no) | 1977-09-21 |
| CA979985A (en) | 1975-12-16 |
| US3758884A (en) | 1973-09-11 |
| FI54663B (fi) | 1978-09-29 |
| SE388517B (sv) | 1976-10-04 |
| NL7306686A (US20100170793A1-20100708-C00006.png) | 1973-11-20 |
| ATA418073A (de) | 1976-12-15 |
| FR2185011A1 (US20100170793A1-20100708-C00006.png) | 1973-12-28 |
| US3753169A (en) | 1973-08-14 |
| BE799650A (fr) | 1973-09-17 |
| US3774125A (en) | 1973-11-20 |
| AU473689B2 (en) | 1976-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1411698A (en) | Frequency-sensitive circuits | |
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| JPS62118631A (ja) | スイツチ型キヤパシタンスを有する同期フイルタ− | |
| US3192402A (en) | Delay network | |
| EP0009900B1 (en) | A monolithic crystal filter having a passband symmetrical about a center frequency | |
| SU637952A1 (ru) | Синхронный фильтр | |
| Herbst et al. | VIS-SC-filters with reduced influences of parasitic capacitances | |
| SU1133655A1 (ru) | Активный @ -фильтр | |
| GB1219614A (en) | Improvements relating to active rc-filters | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |