US Patent 7424664 Duplicate detection circuit for receiver
Patent 7424664 was granted and assigned to Faraday Technology on September, 2008 by the United States Patent and Trademark Office.
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A duplicate detection circuit for a receiver includes a CRC generator for generating a CRC value of frame header information, and a control circuit coupled to the CRC generator. The control circuit has a first output, a second output, and a control input. When the control input is not set, the control circuit outputs the CRC value at the first output. When the control input is set, the control circuit outputs the CRC value at the second output. A buffer has an input coupled to the first output of the control circuit. A compare circuit has an input coupled to an output of the buffer and another input coupled to the second output of the control circuit. The compare circuit compares a CRC value at the second output of the control circuit with a CRC value stored in the buffer, and outputs a duplicate indication when detecting a match.
US Patent 07424664 Duplicate detection circuit for receiver US Patent 7424664 Duplicate detection circuit for receiver
US Patent 07424664 Duplicate detection circuit for receiver
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