EP0036186A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for pulse activation of a piezo-electric sound transmitter-transducer
Assignee: Siemens AG
•
Filing: 1981-03-12
•
Granted: —
•
Expires: 2001-03-12
Abstract
Abstract Translated from German Anwendung einer Voranregungsspannung (1), um den Sendewandler schon mit der ersten Periode (13) der eigentlichen Wechselspannungs-Anregung sofort auf wenigstens nahezu die volle Sende-Schwingungsamplitude (17) zu bringen,womit ein definierter Sende-Impulsanfang gegeben ist. Use of a pre-excitation voltage (1) in order to bring the transmitter transducer to at least almost the full transmit oscillation amplitude (17) immediately with the first period (13) of the actual AC voltage excitation, thus giving a defined transmit pulse start.
Inventors
- 👤 Peter Dipl.-Phys. Kleinschmidt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 13:28
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0215; G; G01; G01S; G01S7/00; G01S7/52; G01S7/523; G01S7/524
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.