Invention Grant
- Patent Title: Proximity detector
- Patent Title (中): 接近检测器
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Application No.: US12446657Application Date: 2008-09-15
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Publication No.: US08148999B2Publication Date: 2012-04-03
- Inventor: Peter Fasshauer , Hans Schwaiger
- Applicant: Peter Fasshauer , Hans Schwaiger
- Applicant Address: DE Wessling
- Assignee: Ident Technology AG
- Current Assignee: Ident Technology AG
- Current Assignee Address: DE Wessling
- Agent Andrew Wilford
- Priority: DE102007043629 20070913
- International Application: PCT/EP2008/007662 WO 20080915
- International Announcement: WO2009/062562 WO 20090522
- Main IPC: G01R27/00
- IPC: G01R27/00 ; G01R27/14
Abstract:
A circuit for generating an indicative signal regarding the approach of an object to an observation area has a send electrode device, a generator circuit for supplying alternating voltage to the send electrode device, a receive electrode device which extends in or along the observation area, and an output circuit for generating an output signal correlating with the field at the receive electrode device. A compensation circuit is provided to add a compensation current i2 to a signal current i1 flowing from the receive electrode device.
Public/Granted literature
- US20110062963A1 PROCESS AND CIRCUIT FOR THE DETECTION OF AN APPROACH TO AN ELECTRODE DEVICE Public/Granted day:2011-03-17
Information query
