| 摘要 |
<p>PURPOSE:To obtain a signal identifying the channel effectiveness of received data on which the content of a channel identifier is affected by comparing a value of channel identifier in the received data with a specific value held with a specific value holding means. CONSTITUTION:The specific value holding means 4 holds one or more specific values of the channel identifier in which no or only a part of information is included in a degenerate channel identifier. A comparison means 5 judges whether or not the value of channel identifier in the received data coincides with the specific value held with the means 4. An omission channel identifier information affecting means 6 outputs signals to maintain or neglect compulsorily the channel effectiveness result of the received data obtained based on the degenerate channel identifier corresponding to the judged result of the means 5. Therefore, the signal representing the channel effectiveness of the received data on which the content of the channel identifier is affected can be obtained even when no information of channel identifier in the degenerate channel identifier exists.</p> |
