BE555963A - - Google Patents
Info
- Publication number
- BE555963A BE555963A BE555963DA BE555963A BE 555963 A BE555963 A BE 555963A BE 555963D A BE555963D A BE 555963DA BE 555963 A BE555963 A BE 555963A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R9/16—Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Numerical Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET12003A DE1063821B (de) | 1956-03-20 | 1956-03-20 | Schneiddose zur Erzeugung einer rillen-foermigen, vorzugsweise zwei Signale enthaltenden Tonspur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE555963A true BE555963A (en:Method) |
Family
ID=7546884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE555963D BE555963A (en:Method) | 1956-03-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2962561A (en:Method) |
| BE (1) | BE555963A (en:Method) |
| DE (1) | DE1063821B (en:Method) |
| FR (1) | FR1172794A (en:Method) |
| GB (1) | GB841294A (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1134527B (de) * | 1960-01-30 | 1962-08-09 | Georg Neumann | Elektromechanischer Wandler mit Gegenkopplung zur Aufzeichnung und Wiedergabe von Schallschwingungen in Einkomponentenschrift |
| DE1121826B (de) * | 1960-02-02 | 1962-01-11 | Telefunken Gmbh | Mechanisch-elektrischer Wandler fuer die Erzeugung oder Abtastung einer rillenfoermigen Tonspur |
| US3194896A (en) * | 1961-01-13 | 1965-07-13 | Teldev Telefunken Decca Schali | Stereophonic transducer with adjustable feedback coils |
| US3490771A (en) * | 1963-01-25 | 1970-01-20 | Columbia Broadcasting Syst Inc | Sound recording method and apparatus |
| US3687461A (en) * | 1969-09-10 | 1972-08-29 | Minoru Kamiya | Three dimensional sound recording and reproducing system |
| CA1054527A (en) * | 1976-07-06 | 1979-05-15 | Sony Corporation | Electrodynamic transducer with annular gap in flux path |
| TW201737277A (zh) * | 2016-04-14 | 2017-10-16 | 原相科技股份有限公司 | 具有力回饋功能的電子開關 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2114471A (en) * | 1936-06-20 | 1938-04-19 | Bell Telephone Labor Inc | Sound recording and reproducing system |
| US2162986A (en) * | 1937-10-07 | 1939-06-20 | Bell Telephone Labor Inc | Amplifying system |
| NL61306C (en:Method) * | 1937-10-07 | |||
| US2284744A (en) * | 1939-03-31 | 1942-06-02 | Rca Corp | Sound recording |
| US2516338A (en) * | 1948-03-30 | 1950-07-25 | Rca Corp | Feedback control system for recording cutters and the like |
-
0
- BE BE555963D patent/BE555963A/xx unknown
-
1956
- 1956-03-20 DE DET12003A patent/DE1063821B/de active Pending
-
1957
- 1957-03-02 FR FR1172794D patent/FR1172794A/fr not_active Expired
- 1957-03-13 GB GB8293/57A patent/GB841294A/en not_active Expired
- 1957-03-18 US US646754A patent/US2962561A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1172794A (fr) | 1959-02-16 |
| US2962561A (en) | 1960-11-29 |
| DE1063821B (de) | 1959-08-20 |
| GB841294A (en) | 1960-07-13 |