发明授权
US07386278B2 Multi-band mobile communication device 失效
多频移动通信设备

  • 专利标题: Multi-band mobile communication device
  • 专利标题(中): 多频移动通信设备
  • 申请号: US10344431
    申请日: 2002-06-12
  • 公开(公告)号: US07386278B2
    公开(公告)日: 2008-06-10
  • 发明人: Naotaka Sato
  • 申请人: Naotaka Sato
  • 申请人地址: JP Tokyo
  • 专利权人: Sony Corporation
  • 当前专利权人: Sony Corporation
  • 当前专利权人地址: JP Tokyo
  • 代理机构: Frommer Lawrence & Haug LLP
  • 代理商 William S. Frommer; Paul A. Levy
  • 优先权: JP2001-177619 20010612
  • 国际申请: PCT/JP02/05850 WO 20020612
  • 国际公布: WO02/101945 WO 20021219
  • 主分类号: H04B1/38
  • IPC分类号: H04B1/38 H04B1/44 H04B1/40
Multi-band mobile communication device
摘要:
Disclosed is a communication apparatus having a small-scale circuit used for modulation. A common transmission image rejection mixer (56) supplies transmission modulation frequencies to a plurality of quadrature modulators (23) (G, D, P, W). Accordingly, it is unnecessary to prepare the transmission image rejection mixer (56) for transmission signal types, makes it possible to prevent the circuit scale from increasing.
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