Digital signal receiver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 17, 1984
Grant Date -
N/A
app pub date -
Jan 19, 1982
filing date -
Apr 7, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital signal receiver is structured to receive and demodulate a digital signal. Such digital signal may comprise, for example, a television signal of character multiplex transmission having a digital signal included in the vertical blanking period of the television signal and a digital signal receiver may be structured to reproduce the digital signal from the television signal. The digital signal includes a clock run-in signal (CRI), a framing code signal (FRC) and a bit serial data signal (DA) disposed in succession. An error of the framing code or the data signal caused by a low frequency region group delay characteristic of a transmission path between the transmission and the demodulation is detected based on the digital signal. Upon detection of an error, a waveform distortion of the framing code signal and the data signal is corrected by means of a correcting circuit (15) such as an LC circuit, whereby an error of the data signal to be demodulated thereafter is prevented.
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Family
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Cited Art Landscape
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