The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2015
Filed:
Nov. 10, 2010
Dezhi Zhang, Guangdong Province, CN;
Liquan Yuan, Guangdong Province, CN;
Dezhi Zhang, Guangdong Province, CN;
Liquan Yuan, Guangdong Province, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
A method for encrypting multicast services in a passive optical network system is provided in the present invention, and the method includes: an Optical Line Terminal (OLT) generating a public key, and using the public key to encrypt the multicast service data in a bearer channel and then transmitting the encrypted data, the multicast service data in the same one bearer channel being encrypted using the same public key; and said OLT sending the public key ,which is used to encrypt the multicast service data, via a management control channel to an Optical Network Unit (ONU) which is activated successfully and requests to receive said multicast service data. A device for encrypting multicast services in a passive optical network system is also provided in the present invention.