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Section 1 Introduction/Specifications
FM HD Radio System
Monitoring API:
The Monitoring API allows real-time monitoring of the EOC. It
provides a standard way for client applications to monitor EOC activity and
configuration details about the EOC. It provides an interface for viewing EOC
configuration, service provider connections, services sent, throughput and application
functionality.
QoS
- Quality of Service.
Resource Manager/EOC Monitor:
The Resource Manager and the EOC Monitor are
sample client applications which are used to configure and monitor the EOC through
the various APIs. The Resource Manager provides a graphical user-interface, which
combines the functionalities of Contract Management and the EOC. Administration
through the Contract Management API and the Exporter Configuration API. The EOC
Monitor helps in monitoring EOC functionality through the Monitor API. The EOC
components are designed so that various such that other such third-party applications
can be developed to access the full EOC functionality through the APIs.
Service Modes
- Operating modes for the HD carriers. MP2 is 6 kHz wider (toward
outer of channel) and MP3 14 kHz wider than MP1, MP4, 328 kHz wider. There is a
corresponding increase in payload data rate. Special permission or notification is
required to use the wider modes. There are a total of seven primary service modes and
four secondary service modes; MP1 through MP7, MS1 through MS4. Modes MP5 to
MP7 and MS1 to MS4 will be used with the all digital mode in the future.
Service Provider API:
The Service Provider API provides a common interface for
service providers to access and deliver data services to the EOC. It helps in the
connection/disconnection of services to the EOC. It provides the communication
protocol used between applications and the EOC Connection Manager. It allows for
service provider authentication and error reporting. The Service Provider API supports
discrete object broadcast which allows a service provider to send variable-sized objects
of arbitrary data types over the HD Radio system.
SPS Processor:
The SPS Processor captures the multiple audio streams and performs
the HDC encoding. It also captures the SPS Program Associated Data (PAD) data
packets and performs the encapsulation of these data packets. The SPS Processor is also
responsible for the multiplexing of the encapsulated SPS PAD within the encoded audio
streams.
