5a641156_Shenzhen___Patent_applications__Description
[Patent application number] 20120069853 [Published] 03-22-2012 [Description] 
METHOD, APPARATUS, AND SYSTEM FOR DATA ACQUISITION - An embodiment of the present disclosure provides a method for data acquisition. The method includes the following steps: transmitting a request message for acquiring line parameters to a central-office end access apparatus, and obtaining a time parameter T
Lv, Shenzhen - Patent applications