| 发明名称 | Transmission apparatus and transmission method | ||
| 摘要 | A transmission apparatus includes a network-side interface unit configured to receive a signal transmission frame into which a client signal is arranged from each of a working line and a protection line of a network, and extract the client signal from the received signal transmission frame, a client-side interface unit configured to transmit the extracted client signal to a client transmission path by using a generated clock, based on frequency adjustment information of the client signal included in the signal transmission frame, a protection-line-side memory configured to store the frequency adjustment information of the client signal included in the signal transmission frame received from the protection line, and a switch controller configured to control to generate a clock by using the frequency adjustment information of the client signal stored in the protection-line-side memory when the signal transmission frame fails to be received from the working line. | ||
| 申请公布号 | US9226050(B2) | 申请公布日期 | 2015.12.29 |
| 申请号 | US201313873562 | 申请日期 | 2013.04.30 |
| 申请人 | FUJITSU LIMITED | 发明人 | Sugama Koichi;Kawarai Masashige;Ishii Hiroyuki;Katayanagi Yukio;Hasegawa Kenichi;Kaiga Takashi;Yanaka Hiromitsu;Ueno Tomohiro |
| 分类号 | G02F1/00;H04Q11/00;H04J3/08;H04J3/06 | 主分类号 | G02F1/00 |
| 代理机构 | Staas & Halsey LLP | 代理人 | Staas & Halsey LLP |
| 主权项 | 1. A transmission apparatus comprising: a network-side interface unit configured to receive a signal transmission frame into which a client signal is arranged from each of a working line and a protection line of a network, and extract the client signal from the received signal transmission frame; a client-side interface unit configured to transmit the extracted client signal to a client transmission path by using a clock generated by a phase synchronization circuit, based on frequency adjustment information of the client signal included in the signal transmission frame; a protection-line-side memory configured to store the frequency adjustment information of the client signal included in the signal transmission frame received from the protection line; and a switch controller configured to control the phase synchronization circuit so as to generate a clock by using the frequency adjustment information of the client signal stored in the protection-line-side memory when the signal transmission frame fails to be received from the working line. | ||
| 地址 | Kawasaki JP | ||