发明申请
US20060199551A1 SINGLE RF OSCILLATOR SINGLE-SIDE BAND MODULATION FOR RFID READERS USING TONE INSERTION DURING READER RECEPTION
有权
单片射频振荡器用于RFID读取器的单边调制在读卡器接收期间使用音频插入
- 专利标题： SINGLE RF OSCILLATOR SINGLE-SIDE BAND MODULATION FOR RFID READERS USING TONE INSERTION DURING READER RECEPTION
- 专利标题（中）： 单片射频振荡器用于RFID读取器的单边调制在读卡器接收期间使用音频插入
-
申请号： US11073340申请日： 2005-03-04
-
公开(公告)号： US20060199551A1公开(公告)日： 2006-09-07
- 发明人: Michael Thomas , Scott Cooper , Aanand Esterberg
- 申请人： Michael Thomas , Scott Cooper , Aanand Esterberg
- 申请人地址： US WA Seattle
- 专利权人： Impinj, Inc.
- 当前专利权人： Impinj, Inc.
- 当前专利权人地址： US WA Seattle
- 主分类号： H04B1/04
- IPC分类号： H04B1/04
摘要：
A transmitter upconverts a SSB data signal during a first operational mode using a RF upconverting signal having a frequency that is offset from a center frequency of a channel (ωC) by an amount that depends on the data signal's SSB bandwidth (ωM). In a second operational mode, the transmitter upconverts a tone signal having a frequency ωM using the same RF upconverting signal. The upconverted tone signal can be used as a continuous wave (CW) carrier signal having a frequency ωC. The transmitter has a single RF oscillator to output both a SSB signal centered at frequency ωC during the first mode and a carrier signal of frequency ωC during the second mode.
公开/授权文献
信息查询
