发明申请
US20100220772A1 Wireless Communication System Using Surface Acoustic Wave (SAW) Second Harmonic Techniques
有权
无线通信系统使用表面声波（SAW）二次谐波技术
- 专利标题： Wireless Communication System Using Surface Acoustic Wave (SAW) Second Harmonic Techniques
- 专利标题（中）： 无线通信系统使用表面声波（SAW）二次谐波技术
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申请号： US12778818申请日： 2010-05-12
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公开(公告)号： US20100220772A1公开(公告)日： 2010-09-02
- 发明人: Peter J. Edmonson , Colin K. Campbell
- 申请人： Peter J. Edmonson , Colin K. Campbell
- 申请人地址： CA Waterloo
- 专利权人： RESEARCH IN MOTION LIMITED
- 当前专利权人： RESEARCH IN MOTION LIMITED
- 当前专利权人地址： CA Waterloo
- 主分类号： B06B1/06
- IPC分类号： B06B1/06 ; H04B1/38 ; H04B1/66
摘要：
A system is for encoding information on a passive surface acoustic wave (SAW) device. The system includes a requesting unit configured to wirelessly transmit an impulse signal. The impulse signal is a signal that includes only a single pulse. A SAW device has an interdigital transducer (IDT) configured to physically store coded data. The SAW device is configured to receive the impulse signal. In response to receiving the impulse signal, the SAW device excites the IDT to generate a coded signal that includes the stored coded data and frequency components at a fundamental frequency.
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