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1. 发明申请

US20100202612A1 OPTICAL NETWORK SYSTEM AND METHOD OF CHANGING ENCRYPTION KEYS 有权
标题翻译：光网络系统和更改加密密钥的方法
公开(公告)号：US20100202612A1
公开(公告)日：2010-08-12
申请号：US12634905
申请日：2009-12-10
申请人： Taiki Nema , Tohru Kazawa , Ryosuke Kurata
发明人： Taiki Nema , Tohru Kazawa , Ryosuke Kurata
IPC分类号： H04L9/00 , H04B10/20
CPC分类号： H04L63/068
摘要： An optical network system including an OLT and ONUs is provided that can prevent the loss of a multicast signal. When receiving an encryption key generation request from the OLT, the ONU generates an encryption key, and transmits the generated encryption key to the OLT. When receiving a notice of timing from the OLT, the ONU updates the encryption key of a belonging group. When receiving a report message from a STB through the ONU, the OLT analyzes the report message, stores a group that the STB belongs to as well as the ONU in a second table, and transmits the encryption key generation request to the ONU. When receiving the encryption key from the ONU, the OLT further stores the encryption key in the second table, and transmits to the ONU a notice of the timing in which the encryption key is valid.
摘要翻译：提供了包括OLT和ONU的光网络系统，其可以防止多播信号的丢失。当从OLT接收到加密密钥生成请求时，ONU生成加密密钥，并将生成的加密密钥发送给OLT。当从OLT接收到定时通知时，ONU更新所属组的加密密钥。当通过ONU从STB接收到报告消息时，OLT分析报告消息，将STB所属的组以及ONU存储在第二表中，并将加密密钥生成请求发送到ONU。当从ONU接收到加密密钥时，OLT还将加密密钥存储在第二表中，并且向ONU发送加密密钥有效的定时的通知。

2. 发明授权

US08280055B2 Optical network system and method of changing encryption keys 有权
标题翻译：光网络系统和更改加密密钥的方法
公开(公告)号：US08280055B2
公开(公告)日：2012-10-02
申请号：US12634905
申请日：2009-12-10
申请人： Taiki Nema , Tohru Kazawa , Ryosuke Kurata
发明人： Taiki Nema , Tohru Kazawa , Ryosuke Kurata
IPC分类号： H04L29/06
CPC分类号： H04L63/068
摘要： An optical network system including an OLT and ONUs is provided that can prevent the loss of a multicast signal. When receiving an encryption key generation request from the OLT, the ONU generates an encryption key, and transmits the generated encryption key to the OLT. When receiving a notice of timing from the OLT, the ONU updates the encryption key of a belonging group. When receiving a report message from a STB through the ONU, the OLT analyzes the report message, stores a group that the STB belongs to as well as the ONU in a second table, and transmits the encryption key generation request to the ONU. When receiving the encryption key from the ONU, the OLT further stores the encryption key in the second table, and transmits to the ONU a notice of the timing in which the encryption key is valid.
摘要翻译：提供了包括OLT和ONU的光网络系统，其可以防止多播信号的丢失。当从OLT接收到加密密钥生成请求时，ONU生成加密密钥，并将生成的加密密钥发送给OLT。当从OLT接收到定时通知时，ONU更新所属组的加密密钥。当通过ONU从STB接收到报告消息时，OLT分析报告消息，将STB所属的组以及ONU存储在第二表中，并将加密密钥生成请求发送到ONU。当从ONU接收到加密密钥时，OLT还将加密密钥存储在第二表中，并且向ONU发送加密密钥有效的定时的通知。

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