Program-associated data
Program Associated Data (PAD) or Program Service Data (PSD) is a concept related to broadcasting which consists of a number of different fields or streams which are displayed on many HD Radio & satellite radio receivers in order to describe the program being transmitted, including different informations such as:
- song title.
- program title.
- artist name.
- album name.
- music genre.
This is intended to be seen by the listener as the program is heard.
The HD radio & satellite radio systems provides a data path for this programming data to be delivered and read by the listener as part of visual display in near real time. HD radio & satellite radio receivers should provide PAD decoders and visual screens for displaying the information in a correct way.
A lot of local radios which are transmitting in digital, are using PAD capacity to increase the value of the service they are giving.
Different to RDS (Radio Data System) http://en.wikipedia.org/wiki/Radio_Data_System
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