Detector circuit and operation method

A detector circuit comprising:

• a sign detector circuit configured to generate a received signal according to a received Pseudo-Noise Sequence corresponding to a Pseudo-Noise Sequence;
• a calculator circuit configured to generate a plurality of first calculation values according to a plurality of first calculation symbols of the Pseudo-Noise Sequence and a plurality of second calculation symbols of the received signal, and generate a second calculation value according to the first calculation values, wherein the second calculation symbols are corresponding to the first calculation symbols respectively;
• and
• a comparator circuit configured to generate a comparison result according to the second calculation value and a threshold value, wherein the comparison result is configured for determining whether the detector circuit correctly receives the Pseudo-Noise Sequence.

An operation method of a detector circuit comprising:

• generating, by a sign detector circuit, a received signal according to a received Pseudo-Noise Sequence corresponding to a Pseudo-Noise Sequence;
• generating, by a calculator circuit, a plurality of first calculation values according to a plurality of first calculation symbols of the Pseudo-Noise Sequence and a plurality of second calculation symbols of the received signal, and generating a second calculation value according to the first calculation values, wherein if a sign of a symbol of the Pseudo-Noise Sequence is the same to a sign of an adjacent symbol, the symbol is one of the first calculation symbols, wherein the second calculation symbols are corresponding to the first calculation symbols respectively;
• and
• generating, by a comparator circuit, a comparison result according to the second calculation value and a threshold value, wherein the comparison result is configured for determining whether the detector circuit correctly receives the Pseudo-Noise Sequence.