公开(公告)号：US20010033601A1

公开(公告)日：2001-10-25

申请号：US09795634

申请日：2001-02-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Mohammed H. Nafie ,  Anand G. Dabak

IPC: H04K001/00

CPC classification number: H04B1/7156 ,  H04B2001/71566

Abstract: A wireless communication network comprising a wireless receiver. The wireless receiver comprises at least a first antenna for receiving packets, wherein each of the received packets comprises a plurality of bits and each of the plurality of bits is modulated by a frequency offset. The wireless receiver also comprises circuitry for cycling through a hopping sequence, wherein the hopping sequence comprises a sequence of frequency bands and circuitry for demodulating each received packet in response to a frequency band in the hopping sequence. The wireless receiver also comprises circuitry for detecting the frequency offset of each of the plurality of bits and converting the frequency offset of each of the plurality of bits into a corresponding DC voltage for each of the plurality of bits. Still further, the wireless receiver comprises circuitry for sampling the DC voltage for each of the plurality of bits and providing a DC offset voltage for each of the plurality of bits, and it also comprises circuitry for providing a filtered DC offset voltage by filtering the DC offset voltage. Lastly, the wireless receiver also comprises circuitry for providing a digital value corresponding to each of the plurality of bits in response to the corresponding DC voltage for each of the plurality of bits as adjusted in response to the filtered DC offset voltage.

Abstract translation: 一种包括无线接收机的无线通信网络。 无线接收器至少包括用于接收分组的第一天线，其中每个接收的分组包括多个比特，并且多个比特中的每一个被频率偏移调制。 无线接收机还包括用于循环穿过跳频序列的电路，其中跳频序列包括频带序列和用于响应于跳频序列中的频带来解调每个接收到的分组的电路。 无线接收机还包括用于检测多个比特中的每一个的频率偏移的电路，并将多个比特中的每一个的频率偏移转换成多个比特中的每一个的对应的DC电压。 另外，无线接收机包括用于对多个比特中的每一个比特的DC电压进行采样并为多个比特中的每一个提供DC偏移电压的电路，并且还包括用于通过对DC 失调电压。 最后，无线接收机还包括电路，用于响应于根据经滤波的DC偏移电压进行调整的响应于多个比特中的每一个的相应DC电压，提供对应于多个比特中的每一个的数字值。