PL84703B1 - Tone control utilizing an operational amplifier with differential inputs[us3816661a] - Google Patents
Tone control utilizing an operational amplifier with differential inputs[us3816661a] Download PDFInfo
- Publication number
- PL84703B1 PL84703B1 PL1972159848A PL15984872A PL84703B1 PL 84703 B1 PL84703 B1 PL 84703B1 PL 1972159848 A PL1972159848 A PL 1972159848A PL 15984872 A PL15984872 A PL 15984872A PL 84703 B1 PL84703 B1 PL 84703B1
- Authority
- PL
- Poland
- Prior art keywords
- resistor
- inverting
- inverting input
- ground
- control
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/025—Equalizers; Volume or gain control in limited frequency bands
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/02—Manually-operated control
- H03G5/04—Manually-operated control in untuned amplifiers
- H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
Landscapes
- Networks Using Active Elements (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUEE2004A HU163256B (US20100292554A1-20101118-C00004.png) | 1972-02-15 | 1972-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL84703B1 true PL84703B1 (en) | 1976-04-30 |
Family
ID=10995426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1972159848A PL84703B1 (en) | 1972-02-15 | 1972-12-28 | Tone control utilizing an operational amplifier with differential inputs[us3816661a] |
Country Status (13)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2511098C2 (de) * | 1975-03-13 | 1983-01-05 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Decodierung eines frequenzmodulierten Stereo-Rundfunksignals |
| US3980965A (en) * | 1975-05-16 | 1976-09-14 | Rockwell International Corporation | Frequency response control circuit apparatus |
| JPS5340257A (en) * | 1976-09-25 | 1978-04-12 | Nippon Gakki Seizo Kk | Tone control circuit |
| DE2739194C2 (de) * | 1977-08-31 | 1982-10-21 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltungsanordnung mit einem NF- Verstärker und einer an dessen NF-Eingang angeschlossenen Klangfarbeneinstellungsanordnung für die hohen Töne |
| JPS56132804A (en) * | 1980-03-22 | 1981-10-17 | Sharp Corp | Operational tone quality control circuit |
| IL61198A (en) * | 1980-10-03 | 1982-08-31 | Dohan David | Amplification method for a stereo system and an arrangement for carrying out this method |
| US4538298A (en) * | 1982-09-29 | 1985-08-27 | Bose Corporation | Fixed bandpass tone controlling |
| JPH0241934Y2 (US20100292554A1-20101118-C00004.png) * | 1984-10-15 | 1990-11-08 | ||
| JPH0712133B2 (ja) * | 1988-10-21 | 1995-02-08 | 三菱電機株式会社 | 音質調整装置 |
| US5994956A (en) * | 1998-05-06 | 1999-11-30 | Concorso; James A. | Inductive-capacitive feedback compensation for amplifier systems |
| US6078215A (en) * | 1998-07-20 | 2000-06-20 | Fiori, Jr.; David | Impedance altering apparatus |
| US20080111607A1 (en) * | 2006-11-10 | 2008-05-15 | Hart Robert T | Amplitude-linear differential phase shift circuit |
-
1972
- 1972-02-15 HU HUEE2004A patent/HU163256B/hu not_active IP Right Cessation
- 1972-08-31 AT AT750972A patent/AT341581B/de active
- 1972-09-05 DE DE2243608A patent/DE2243608A1/de active Pending
- 1972-09-05 CA CA150,987A patent/CA983402A/en not_active Expired
- 1972-09-06 US US00286680A patent/US3816661A/en not_active Expired - Lifetime
- 1972-09-07 DD DD165510A patent/DD98404A5/xx unknown
- 1972-09-19 BG BG21404A patent/BG20834A3/xx unknown
- 1972-11-09 CS CS727577A patent/CS188885B2/cs unknown
- 1972-11-10 FR FR7240088A patent/FR2172639A5/fr not_active Expired
- 1972-11-16 SE SE7214920A patent/SE375420B/xx unknown
- 1972-12-14 GB GB5785872A patent/GB1410380A/en not_active Expired
- 1972-12-28 PL PL1972159848A patent/PL84703B1/pl unknown
-
1973
- 1973-01-30 SU SU731879993A patent/SU635903A3/ru active
-
1975
- 1975-03-11 SU SU7502112327A patent/SU580854A3/ru active
- 1975-03-13 SU SU752112448A patent/SU593678A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| SU580854A3 (ru) | 1977-11-15 |
| GB1410380A (en) | 1975-10-15 |
| CS188885B2 (en) | 1979-03-30 |
| DE2243608A1 (de) | 1973-10-11 |
| HU163256B (US20100292554A1-20101118-C00004.png) | 1973-07-28 |
| DD98404A5 (US20100292554A1-20101118-C00004.png) | 1973-06-12 |
| ATA750972A (de) | 1977-06-15 |
| AT341581B (de) | 1978-02-10 |
| BG20834A3 (US20100292554A1-20101118-C00004.png) | 1975-12-20 |
| SE375420B (US20100292554A1-20101118-C00004.png) | 1975-04-14 |
| SU593678A3 (ru) | 1978-02-15 |
| US3816661A (en) | 1974-06-11 |
| SU635903A3 (ru) | 1978-11-30 |
| CA983402A (en) | 1976-02-10 |
| FR2172639A5 (US20100292554A1-20101118-C00004.png) | 1973-09-28 |
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