| 摘要 |
A singlecast interactive radio system of the invention delivers digitized audio-based content to subscribers, upon their request, economically and with human voice quality. The system includes personal radio station servers, and a plurality of user terminals, and exploits one of the existing wireless communication networks as a transmission medium. A highly compressed voice-based information content is stored on data network servers, such as Internet World Wide Web servers. The personal radio station server stores multiple subscriber's profiles with topics of individual interest, assembles a content material from various Web sites according to the topics, and transmits the content to a subscriber's user terminal on subscriber's request over the wireless digital network. The user terminal restores voice-based material with at least AM-radio voice quality and transmission costs of such a material is very low in comparison to existing methods of voice communication, at least as a result of chosen compression algorithms. The user terminal optionally integrates, electrically and mechanically, a conventional radio and with a cellular phone equipment. The user can control system functions hands-free by issuing voice commands only. Such functions include, but are not limited to, cellular telephony voice dialing and control, secure network log-on based on voice identification, hands-free tuning to conventional radio-stations, changing audio playback level, and switching between functions. The user terminal also retrieves text material from the Internet or other data depositories, plays the material back as a computer-generated speech, digitizes a voice response from the user, and delivers the response to other e-mail addresses over related networks, including wired networks. |
