User's Manual

Pr
oduct Overview
Figure 1 below illustrates the interactions of the DA118B device with the outside wo
rld
as well as with other components of the DA118B system overall. This device collects
encoded audio watermarked with Nielsen’s patented Critical Band Encoding
Technology and using cellular technology forwards this information back to Nielsen
servers. The DA118B also determines if the person is in home or out of the home
using
an In-Home Transmitter. The DA118B also uses a Headphone adapter to when the
panelist is wearing headphones to collect this data from MP3 or other devices that use
headphones.
Figure 1: Interaction of DA118B Syst
em
Main Functions as below：
1. Audio data Acquisiti
on Functions: data collection through the DSP, and then
transmitted to specified Server through the phone's GPRS
2.
GPRS
Function: Use only on a mobile phone SIM card, GPRS function, will collect
the data sent to the specified server. No SIM card of various number of
services, such as ADN, SDN, FDN.
3. Bluetooth function : The Bluetooth device only a search feature, only can search to the
Device ID and Bluetooth address. No Bluetooth connectivity, no data transmission and
other functions also do not support. In addition, DA118B Bluetooth can not be searched.