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Implementation of on-off passive wireless surface acoustic wave sensor using coding and switching techniques
Methods and systems for passive wireless surface acoustic wave devices for orthogonal frequency coded devices to implement ON-OFF sensors reusing orthogonal frequency code and distinguishing between ON and OFF states using additional PN sequence and on/off switches producing multi-level coding as well as external stimuli for switching and identification of a closure system. An embodiment adds a level of diversity by adding a dibit to each surface acoustic wave devices, thus providing four different possible coding states. The PN on-off coding can be with the dibit for coding in a multi-tag system.
Implementation of on-off passive wireless surface acoustic wave sensor using coding and switching techniques
Methods and systems for passive wireless surface acoustic wave devices for orthogonal frequency coded devices to implement ON-OFF sensors reusing orthogonal frequency code and distinguishing between ON and OFF states using additional PN sequence and on/off switches producing multi-level coding as well as external stimuli for switching and identification of a closure system. An embodiment adds a level of diversity by adding a dibit to each surface acoustic wave devices, thus providing four different possible coding states. The PN on-off coding can be with the dibit for coding in a multi-tag system.
Implementation of on-off passive wireless surface acoustic wave sensor using coding and switching techniques
MALOCHA DONALD (Autor:in) / KOZLOVSKI NIKOLAI (Autor:in)
04.08.2015
Patent
Elektronische Ressource
Englisch
IPC:
G08B
SIGNALLING OR CALLING SYSTEMS
,
Signalisier- oder Rufsysteme
/
B06B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
,
Erzeugen oder Übertragen mechanischer Schwingungen allgemein
/
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
/
G06K
Erkennen von Daten
,
RECOGNITION OF DATA
/
H03H
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
,
Scheinwiderstandsnetzwerke, z.B. Resonanzkreise
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