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发明授权
US07493648B2 Data transmission device, data receiving device, data transmitting method, data receiving method, recording device, playback device, recording method, and playback method 失效
数据发送装置，数据接收装置，数据发送方法，数据接收方法，记录装置，回放装置，记录方法和再现方法

Data transmission device, data receiving device, data transmitting method, data receiving method, recording device, playback device, recording method, and playback method
摘要：
A data transmission device transmits a data broadcast using a narrow unused broadcasting band in a digital broadcast, and to record the data broadcast, which has been received, on a receiving side so that the receiving side can play back the data broadcast after a data stream is totally recorded. The transmission device generates a first data stream, which is recorded on a recording medium on a receiving side, and a second data stream including audio and video data, which is transmitted as a broadcasting program. The transmission device multiplexes the first and the second data streams and then transmits the multiplexed data stream. The transmission of the multiplexed data stream is controlled so that a transmission rate for the multiplexed data stream does not exceed the maximum transmission rate, and so that a transmission rate for the first data stream becomes lower than that for the second data stream. A receiving device records the first data stream on the recording medium, and permits the first data stream to be played back for use after the transmission completes.
摘要（中）：

数据发送装置在数字广播中使用窄的未使用广播频带发送数据广播，并且在接收侧记录已经接收到的数据广播，使得接收侧可以在数据流之后播放数据广播 被完全记录。 发送装置生成记录在接收侧的记录介质上的第一数据流和作为广播程序发送的包括音频和视频数据的第二数据流。 发送装置复用第一和第二数据流，然后发送多路复用的数据流。 控制多路复用数据流的传输，使得复用数据流的传输速率不超过最大传输速率，并且使得第一数据流的传输速率变得低于第二数据流的传输速率。 接收装置将第一数据流记录在记录介质上，并允许第一数据流在传输完成之后被播放以供使用。

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