发明授权
- 专利标题： Optical communication equipment and optical communication method
- 专利标题（中）： 光通信设备及光通信方式
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申请号： US922001申请日： 1992-08-04
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公开(公告)号： US5212577A公开(公告)日： 1993-05-18
- 发明人: Kenji Nakamura , Jun Nitta
- 申请人： Kenji Nakamura , Jun Nitta
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-8368 19900119; JPX2-8369 19900119
- 主分类号： H04B10/145
- IPC分类号： H04B10/145 ; H04B10/155 ; H04J14/02
摘要：
An optical communication terminal detects an unused first wavelength in a wavelength range in response to a transmission request and transmits a call signal to a transmission destination using the first wavelength. An acknowledgement signal from the destination is detected in a portion of the wavelength range not including the first wavelength. When a call signal addressed to the terminal from another terminal is detected thereat and the terminal is ready for communication, an unused second wavelength in the wavelength range is detected and an acknowledgement signal is sent using the second wavelength in response to the call signal.
公开/授权文献
- US5853815A Method of forming uniform thin coatings on large substrates 公开/授权日：1998-12-29
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