发明授权
- 专利标题： Detector and receiving and transmitting apparatus
- 专利标题（中）： 检测器和接收和发送装置
-
申请号： US597708申请日： 1996-02-07
-
公开(公告)号： US5787126A公开(公告)日： 1998-07-28
- 发明人: Kenji Itoh , Mitsuhiro Shimozawa , Kenji Kawakami , Noriharu Suematsu , Akio Iida
- 申请人： Kenji Itoh , Mitsuhiro Shimozawa , Kenji Kawakami , Noriharu Suematsu , Akio Iida
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX7-044312 19950303
- 主分类号： H03D1/22
- IPC分类号： H03D1/22 ; H03B19/00 ; H03C3/00 ; H03D3/02 ; H03D7/16 ; H04B1/02 ; H04B1/06 ; H04B1/30 ; H04L27/20 ; H04L27/22 ; H04L27/38
摘要：
The detector comprises a first distributor for distributing a signal wave, a 45 degree shifter for shifting a local oscillation, a first even harmonic mixer and a second even harmonic mixer for generating a mixed wave between a double frequency wave of said local oscillation wave and said signal wave. The present invention can be used for increasing the accuracy and downsizing of quadrature mixer used in a receiving transmitting apparatus of a wireless communication system.
公开/授权文献
- US4618894A Color video signal recording and reproducing apparatus 公开/授权日：1986-10-21