Invention Grant
- Patent Title: RFID based keyboard
- Patent Title (中): 基于RFID的键盘
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Application No.: US12131694Application Date: 2008-06-02
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Publication No.: US08089376B2Publication Date: 2012-01-03
- Inventor: Robert R. Oberle
- Applicant: Robert R. Oberle
- Assignee: RCD Technology Inc
- Current Assignee: RCD Technology Inc
- Agency: Fliesler Meyer LLP
- Main IPC: H03M11/00
- IPC: H03M11/00

Abstract:
An RFID keyboard comprising a base with a first antenna and; keys with secondary antennas wherein a key is normally in a first position such that the resonant frequency is away from an interrogation frequency and no signal for the key is detected and wherein when the key is depressed, the secondary antenna for the key and the first antenna become adjacent such that the resonant frequency shifts such that information identifying the key is transferred.
Public/Granted literature
- US20090128337A1 RFID BASED KEYBOARD Public/Granted day:2009-05-21
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