METHOD AND APPARATUS FOR REQUESTING DATA, AND METHOD AND APPARATUS FOR OBTAINING DATA

摘要

Disclosed herein are methods and apparatuses for requesting and obtaining data, in which time information is generated by use of a first device, and a data request command requesting data output by a second device is generated at a time point indicated by the time information. The generated data request command is transmitted, wherein the data request command includes the time information.

主权项

1. A data obtaining method performed in a second device, the method comprising:
outputting data; receiving a data request including time information, from a first device; and obtaining information about the data output by the second device at a time point indicated by the time information.