Channel detecting circuit in a receiver in a time-division multiplex transmission system
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United States of America Patent
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-
Apr 21, 1987
Grant Date -
N/A
app pub date -
Mar 25, 1985
filing date -
Mar 23, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a receiver receiving a time-division multiplex signal of a plurality of channels with each channel signal having a start signal part, an address signal part, an information signal part, and a blank interval arranged in this order, a channel detecting circuit for detecting the channel signal assigned to the receiver is provided with a blank interval detecting circuit in addition to an address detecting circuit for detecting the address signal part representing the address assigned to the receiver, in order to avoid an erroneous detection of the address detection circuit at a start condition of the receiver. Application of the multiplex signal to the address detecting circuit is prevented until the blank interval detection circuit initially detects one blank interval of the multiplex signal. At a start condition of the receiver, application of the multiplex signal to the address detecting circuit starts at not an intermediate time position in one channel signal but the start signal part of a subsequent channel signal.
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