EP 0221324 A1 19870513 - Signal transducer.
Title (en)
Signal transducer.
Title (de)
Signalwandler.
Title (fr)
Transducteur de signaux.
Publication
Application
Priority
CH 432685 A 19851007
Abstract (en)
[origin: US4720665A] A transducer for converting electrical input signals into an electrical or mechanical output. The transducer employs a circuit for producing a negative source impedance and a winding cooperating with the circuit. The winding has first and second parts connected end to end. The ratio of the induced electromotive forces developed across the first part relative to that of the second part differs from the ratio of the ohmic resistance of the first part relative to that of the second part.
Abstract (de)
Bei einem Wandler (45) zur Umwandlung elektrischer Signale in elektrische oder mechanische Signale mit Hilfe einer Wicklung (50) und einer Schaltung (60) zur Erzeugung einer negativen Quellenimpedanz, wird die Wicklung (50) derart in zwei Teile (53, 56) aufgeteilt, dass das Verhaeltnis der induzierten elektromotorischen Kraft in den Teilen nicht gleich ist dem Verhaeltnis der ohm'schen Widerstaende in den beiden Teilen.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H04R 3/002 (2013.01 - EP US); H04R 3/08 (2013.01 - EP US)
Citation (search report)
- [AD] EP 0041472 A1 19811209 - ANT NACHRICHTENTECH [DE]
- [A] US 4335274 A 19820615 - AYERS RICHARD A
- [A] DE 853298 C 19521023 - PHILBERTH BERNHARD, et al
- [A] FR 2345880 A1 19771021 - STAHL KARL [SE]
- [A] FR 2236331 A1 19750131 - RODIER MICHEL [FR]
- [A] US 3416091 A 19681210 - JOZIAS OVERTVELD GILLES
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0221324 A1 19870513; EP 0221324 B1 19910522; DE 3679373 D1 19910627; US 4720665 A 19880119
DOCDB simple family (application)
EP 86113180 A 19860925; DE 3679373 T 19860925; US 91437286 A 19861002