Pulse or digital communications – Testing – With indicator
Reexamination Certificate
2005-06-28
2005-06-28
Chin, Stephen (Department: 2634)
Pulse or digital communications
Testing
With indicator
C375S150000, C348S186000, C324S076140, C370S480000, C434S218000, C345S440000, C367S002000
Reexamination Certificate
active
06912247
ABSTRACT:
A digital signal transmission system using a digital modulation system comprising a digital signal transmitter having a first digital signal processing unit and a digital signal receiver receiving a digital signal from the transmitter, wherein the digital signal receiver comprising a second digital signal processing unit for processing the digital signal from the transmitter and outputting a digital demodulated signal and a correlation value signal, a signal converter coupled with the second digital signal processing unit and supplied the correlation value signal therefrom for generating a waveform indicating a transmission condition including a main wave in response to the correlation value signal, and a display coupled with the signal converter for displaying the waveform indicating a transmission condition in the digital transmission system.
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Miyashita Atsushi
Takesue Hiroyuki
Wagatsuma Yoshikatsu
Chin Stephen
Hitachi Kokusai Electric Inc.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Pathak Sudhanshu C.
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