Pulse or digital communications – Receivers – Automatic baseline or threshold adjustment
Reexamination Certificate
2011-01-18
2011-01-18
Fan, Chieh M (Department: 2611)
Pulse or digital communications
Receivers
Automatic baseline or threshold adjustment
C375S318000, C375S319000
Reexamination Certificate
active
07873123
ABSTRACT:
A null detector and its corresponding method are provided. The null detector includes a power detector, a smoother, and an overlapper. The power detector outputs a power level signal according to the power level of a received signal. The smoother is coupled to the power detector for determining according to the power level signal whether the received signal is transmitting a null symbol, and then the smoother outputs a null detection signal at a first state value or a second state value indicating the result of the determination. The overlapper is coupled to the smoother for providing the duration and position of the null symbols transmitted by the received signal according to the null detection signal.
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Huang Cen-Chieh
Li Shu-Mei
Ma Chingwo
Wang Chih-Chia
Alpha Imaging Technology Corp.
Fan Chieh M
Ghulamali Qutbuddin
Jianq Chyun IP Office
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