发明名称 RADIO-SIGNAL RECEIVING APPARATUS IN CDMA SPREAD SPECTRUM RADIO TRANSMISSION SYSTEM
摘要 <p>PURPOSE: To improve efficiency in using of a certain frequency band width and to increase a channel capacity by detecting a desired signal by a signal reduced in multi-spot connection disturbance. CONSTITUTION: A delayed signal is subtracted from a signal output added in an adding circuit 725 by a difference circuit 727. Thus, obtained difference signal is divided into several branches equivalent to the number of 'U' channels, added to pseudo receiving circuits 731 to 733 to be restored into an original information signal showing an uncertain signal 'U'. These 'U' signal outputs of the pseudo receiving circuits 731 to 733 are supplied to a storage circuit 712 in order to overwrite there the stored signals 'U' which are perhaps originally wrong. These 'U' signals become more correct, and then they are supplied to a pseudo receiver 741 for error correction and decoding or the like.</p>
申请公布号 JPH04296126(A) 申请公布日期 1992.10.20
申请号 JP19910354526 申请日期 1991.12.20
申请人 AMERICAN TELEPH & TELEGR CO <ATT> 发明人 KI BI
分类号 H04Q7/38;H04B1/707;H04B7/26 主分类号 H04Q7/38
代理机构 代理人
主权项
地址