An additional feature is included to maximize the stability of the above-mentioned FSK signal demodulating system based on binary notation: the system incorporates a circuit which disables definition of an "RXDT- signal unless more than four consecutive FS-keyed signal waves are identified within the same frequency band during binary discrimination. This protects the once defined "RXDT- signal in the bit data form from being affected by sporadic events. For instance, even when its discrimination result is sporadically inverted due to some noise effects, it is not affected if only three or less consecutive FS- keyed signal waves are identified at the 'A30P" terminal. (See the diagram below.)
STLVD112 on stock| | tAS tWP tWR | I |
| | | | |
| | k | |
| | | tcW | |
| | | |
| | | k | | |
| | | tcW |
| | |
| | 7 | tBW | |
| | | |
| | k | |
| Hi-Z | | tBE | LODW k | |
| tCOE tDS l | l lI-L tDH |
| l | | |
| (SeeNote5) < VALIDDATAIN> | < |
| | | | | | | | |
| Mat; | AO | 80 | KO | W | T | PO | P2 | Pl | DO | D1 | E | F |
| PS | 1 9 | 4 0 | 1 5 | 8 0 | 0 235 | 4 0 | 2 0 | 4 0 | 1 5 | 1 | 1 75 | 3 5 |
| | | | | | | | | | | | |
