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:
Apr. 22, 2014
Filed:
Jun. 09, 2010
Hua Zhang, Qingdao, CN;
Xigui Wu, Qingdao, CN;
Hisense Broadband Multimedia Technologies Co., Ltd, Qingdao, CN;
Abstract
An optical line terminal (OLT) includes an optical receiving assembly and a processor (). A current mirror (), a current-voltage conversion circuit () and a switching circuit () are connected in sequence between the optical receiving assembly and the processor (). An energy storage circuit connected to ground is connected between the switching circuit () and the processor (). The optical receiving assembly generates a response current according to the optical signal received. The current mirror () processes the current and then transmits it to the current-voltage conversion circuit (). The conversion circuit () converts the current into a voltage signal and transmits the voltage signal to the switching circuit (). The switching circuit () transmits the voltage signal outputted by the conversion circuit () to the energy storage circuit. The voltage signal is sampled and held by the energy storage circuit and then outputted to the processor (). The processor () monitors the average optical power of the voltage signal. The OLT can provide a more accurate detection of the average optical power of each burst signal pack in an upstream burst mode.