PORTABLE MULTI-PURPOSE AUDIENCE MEASUREMENT SYSTEM
摘要
A metering system (1200) may include a network (1207) to provide wireless network access to the portable unit (1204) and a download station (1208) that is coupled to the portable unit (1204).
申请公布号
CA2543017(C)
申请公布日期
2013.11.26
申请号
CA20042543017
申请日期
2004.10.15
申请人
NIELSEN MEDIA RESEARCH, INC.
发明人
WRIGHT, DAVID HOWELL;RAMASWAMY, ARUN;NELSON, DAN;VILCHES, GLEN
