Instead, the encoder includes circuitry which inhibits the operation of the random pulse generator to the extent necessary to force a particular switching signal mode for a predetermined average time interval. For instance, assuming that it is desired to continue to operate for a while with a rectangular switching signal of the 4C mode as in FIG. 2, it is necessary to reset the seven pulse counter at the mode transition point between time slots 16 and 17. In order for this to occur, the rectangular switching signal must transition from a C state in time slot 16 to a B state in time slot 17 to obtain a C to B transition.
Since the pulse generator is normally completely random,the only way to insure this transition is to inhibit the generator from producing certain output pulses which would not force the required transition正確的英語應(yīng)該是這樣的吧,有些詞都沒有分開,還有completely少個cлл???????????????????????????????????????巢????????????·???????·???????????????????????????????????????????????磬?????????????????2?????4C???е?????л??????в??????б?????????16??17???????????????7?????????????????????????????ο???????????????16??C????????????17??C???????C??B??????????????巢???????????????????????????Ψ?????????????????????????????壬??Щ??????????????????ɡ?