Sixbey, Friedman, Leedom & Ferguson
Spread spectrum communication system
 The correlation between a PN code pattern of the synchronization preamble data of an incoming spread spectrum signal and a reference PN code pattern generated on the reception side is detected by using an SAW convolver. The gate length of the SAW convolver is shorter than the preamble data length. However, an apparatus which can obtain the true correlation output by calculating the logical multiplication of the correlation output from the SAW convolver and the validation pulse is constituted. 
Kabushiki Kaisha Kenwood
H
H04B
inventional
Shigeyuki Hirotaka Shintaro Yasushi Hisashi
Nakayama Namioka Watanabe Yamaguchi Terada