公开(公告)号：US20060240787A1

公开(公告)日：2006-10-26

申请号：US11319613

申请日：2005-12-29

申请人： Kyu An ,  Hak Kim

发明人： Kyu An ,  Hak Kim

IPC分类号： H04B1/04

CPC分类号： H04B1/69 ,  H04B2001/6912

摘要： The invention relates to a data transmitter and a data transceiver incorporating a passive device such as a SAW filter, which can modulate frequency by using the SAW filter in order to transmit digital data via analog communication path. The transmitter or transceiver generates at least two up/down-chirp signals having mutually discriminable nonlinear frequency modulation characteristics by modifying frequency modulation characteristics of chirp-modulating SAW filters, allocates the up/down-chirp signals according to preset bit binary information, and then selectively transmits one of the up/down-chirp signals corresponding to transmitting data.

摘要翻译： 本发明涉及一种数据发射器和数据收发器，其包括诸如SAW滤波器的无源器件，其可以通过使用SAW滤波器来调制频率，以便经由模拟通信路径发送数字数据。 发射器或收发器通过修改啁啾调制SAW滤波器的频率调制特性，产生具有相互鉴别的非线性频率调制特性的至少两个上/下啁啾信号，根据预置位二进制信息分配上/下啁啾信号，然后 选择性地发送对应于发送数据的上/下啁啾信号之一。