Abstract: The present invention relates to a method and system for implementing a large area and continuous coverage of programs in a digital audio broadcasting, wherein, part of carrier frequencies are set as common carrier frequencies, and other carrier frequencies are set as service carrier frequencies; all of the common carrier frequencies are combined together to achieve a seamless coverage for the large area; a transmitting end transmits a common frequency point identifier and a program information list on the common carrier frequencies, and transmits digital broadcasting programs on the service carrier frequencies; a receiving end identifies the common carrier frequency based on the common frequency point identifier and receives the digital broadcasting program on the common carrier frequencies; for a specific program desired to be received, all the carrier frequencies on broadcasting of the program are searched based on the received program information list, and the carrier frequency with best signal quality is

Abstract: The present invention provides an information dissemination system based on the integration of the broadcast network and the Internet, including: a terminal storage module, a regional storage module, a statistics-and-analysis module, a recommendation-and-analysis module, a media content management module and a network scheduling module. By two-level storing and playing of media contents, along with the statistics and analysis for on-demand behaviors of users, the intervention of the operator, and the recommendation and analysis performed by the recommendation-and-analysis module, the media contents are classified. Further, according to the classification, a media content is transmitted to the terminal storage module via the Internet; or, is transmitted to the terminal storage module via the Internet and pushed to the terminal storage module via the broadcast network; or, is pushed to the terminal storage module or the regional storage module at a predetermined time via the broadcast network.