Title:
RF COMMUNICATIONS APPARATUS AND MANUFACTURING METHOD THREFOR
Document Type and Number:
WIPO Patent Application WO2005086788
Kind Code:
A3
Abstract:
Described herein are a transient event detector (35) comprising electrical circuitry (50) suitable to detect a transient event, and a container (34) having a wall with at least two electrically conductive contacts (23, 44) electrically connected to the electrical circuitry (50), each of the at least two electrically conductive contacts (23, 44) being electrically isolated from each other, and a movable electrically conductive piece (36) that intermittently connects at least two of the at least two electrically conductive contacts when the electrically conductive piece (36) is in motion. An RF circuit (54) couples to a loop antenna (25) having a tuning capacitor (26) formed as conductive pads (26', 26") juxtaposed on opposing sides of a planar dielectric substrate (92). The tuning capacitor (26) has a hole (27) through it, and the hole has a size that is selected to cause the loop antenna (25) to exhibit a desired resonance frequency.
Inventors:
MORRISON CHRISTOPHER S (US)
Application Number:
PCT/US2005/007479
Publication Date:
August 31, 2006
Filing Date:
March 08, 2005
Export Citation:
Assignee:
NUVO HOLDINGS L L C (US)
MORRISON CHRISTOPHER S (US)
MORRISON CHRISTOPHER S (US)
International Classes:
G08B13/14; G08B1/08; G08B13/24; G08B21/00
Foreign References:
| US6407669B1 | 2002-06-18 | |||
| US6507251B2 | 2003-01-14 | |||
| US5790385A | 1998-08-04 | |||
| US5386214A | 1995-01-31 | |||
| US4736207A | 1988-04-05 |
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