SE345050B - - Google Patents
Info
- Publication number
- SE345050B SE345050B SE6426/66A SE642666A SE345050B SE 345050 B SE345050 B SE 345050B SE 6426/66 A SE6426/66 A SE 6426/66A SE 642666 A SE642666 A SE 642666A SE 345050 B SE345050 B SE 345050B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
-
- 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
- H03H11/1295—Parallel-T filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/01—Varying the frequency of the oscillations by manual means
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45489065A | 1965-05-11 | 1965-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE345050B true SE345050B (xx) | 1972-05-08 |
Family
ID=23806484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE6426/66A SE345050B (xx) | 1965-05-11 | 1966-05-10 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3457526A (xx) |
| BE (1) | BE680678A (xx) |
| DE (1) | DE1269677B (xx) |
| ES (1) | ES326860A1 (xx) |
| GB (1) | GB1071204A (xx) |
| NL (1) | NL148457B (xx) |
| SE (1) | SE345050B (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3569863A (en) * | 1968-12-13 | 1971-03-09 | Northern Electric Co | Twin-t oscillator |
| US3611194A (en) * | 1969-12-29 | 1971-10-05 | Stromberg Carlson Corp | Tunable oscillator circuit employing an active rc notch filter circuit |
| GB2071452B (en) * | 1980-02-11 | 1984-04-04 | Decca Ltd | Adjustable and selective electrical filters and methods oftuning them |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB524314A (en) * | 1939-01-27 | 1940-08-02 | Edmund Ramsay Wigan | Improvements in and relating to thermionic valve oscillators and amplifiers |
| US2619534A (en) * | 1948-10-25 | 1952-11-25 | Payne Samuel | Tuning circuit for resistor-capacitor oscillators |
| US3072868A (en) * | 1960-02-10 | 1963-01-08 | Int Research & Dev Co Ltd | Twin t filter |
| US2996689A (en) * | 1960-05-24 | 1961-08-15 | Donald W F Janz | Constant d.-c. resistance frequency variable t-t notch network |
| US3009121A (en) * | 1961-05-12 | 1961-11-14 | William V Loebenstein | Adjustable frequency rejection filter |
| US3174111A (en) * | 1961-07-05 | 1965-03-16 | Texas Instruments Inc | Twin-t filter with negative feedback |
| US3223941A (en) * | 1963-11-05 | 1965-12-14 | Bell Telephone Labor Inc | Adjustable frequency bridge circuit |
-
1965
- 1965-05-11 US US454890A patent/US3457526A/en not_active Expired - Lifetime
-
1966
- 1966-05-06 BE BE680678D patent/BE680678A/xx not_active IP Right Cessation
- 1966-05-07 DE DEP1269A patent/DE1269677B/de active Pending
- 1966-05-09 ES ES0326860A patent/ES326860A1/es not_active Expired
- 1966-05-10 SE SE6426/66A patent/SE345050B/xx unknown
- 1966-05-10 GB GB20620/66A patent/GB1071204A/en not_active Expired
- 1966-05-11 NL NL666606440A patent/NL148457B/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES326860A1 (es) | 1967-03-16 |
| US3457526A (en) | 1969-07-22 |
| BE680678A (xx) | 1966-10-17 |
| GB1071204A (en) | 1967-06-07 |
| NL148457B (nl) | 1976-01-15 |
| NL6606440A (xx) | 1966-11-14 |
| DE1269677B (de) | 1968-06-06 |