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    • 6. 发明申请
    • IPTV SYSTEM AND SERVICE METHOD USING VOICE INTERFACE
    • 使用语音接口的IPTV系统和服务方法
    • US20110060592A1
    • 2011-03-10
    • US12784439
    • 2010-05-20
    • Byung Ok KangEui Sok ChungJi Hyun WangMi Ran Choi
    • Byung Ok KangEui Sok ChungJi Hyun WangMi Ran Choi
    • G10L21/00H04N7/173
    • H04N21/440236G10L21/0216H04N21/42684H04N21/4621
    • Provided is an IPTV system using voice interface which includes a voice input device, a voice processing device, a query processing and content search device, and a content providing device. The voice processing device performs voice recognition to convert voice into a text. The voice processing device includes a voice preprocessing unit, a sound model database, a language model database, and a decoder. The voice preprocessing unit performs preprocessing which includes improving the quality of sound or removing noise for the received voice, and extracts a feature vector. The decoder converts the feature vector into a text by using a sound model and a language model. Moreover, the voice processing device stores the profile and preference of a user to provide personalized service. The result of voice recognition is updated in a sound model database and a user profile database each time service for a user is provided, the performance of voice recognition and the performance of personalized service can continuously be improved.
    • 提供了一种使用语音接口的IPTV系统,其包括语音输入设备,语音处理设备,查询处理和内容搜索设备以及内容提供设备。 语音处理装置执行语音识别以将语音转换为文本。 语音处理装置包括语音预处理单元,声音模型数据库,语言模型数据库和解码器。 语音预处理单元执行预处理,其包括提高声音的质量或去除接收到的语音的噪声,并提取特征向量。 解码器通过使用声音模型和语言模型将特征向量转换为文本。 此外,语音处理装置存储用户的简档和偏好以提供个性化服务。 语音识别的结果在声音模型数据库和用户简档数据库中被更新,每次为用户提供服务时,可以不断提高语音识别的性能和个性化服务的性能。