发明名称 WIRELESS BASE STATION DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a wireless base station device capable of giving an IP function of a private call system as alternatives. SOLUTION: Voice data of ADPCM (Adaptive Differential Pulse-Code Modulation) coding received by a wireless part 6 are converted into a PCM (Pulse-Code Modulation) code by a code conversion part 7, read to a bas line, are transferred to an ADSL interface part 3 in the case of an ADSL line connection, or are transferred to an LAN interface part 4 in the case of an LAN line connection. Moreover, voice data of PCM code transmitted by the ADSL line or the LAN line are converted into the ADPCM code by the code conversion part 7 and sent to an antenna via the wireless part 6. COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2009171105(A) 申请公布日期 2009.07.30
申请号 JP20080005666 申请日期 2008.01.15
申请人 HITACHI KOKUSAI ELECTRIC INC 发明人 KIDAI YASUTO
分类号 H04L5/16;H04B3/54 主分类号 H04L5/16
代理机构 代理人
主权项
地址