Non-linear coder

摘要: 1,072,968. Selective signalling. STANDARD TELEPHONES & CABLES Ltd. Jan. 14, 1966, No. 1856/66. Heading G4H. In a non-linear voltage digitizer capacitor is charged to the level of input and then discharged at stepwise increasing rate clock-pulses are counted until discharged. The passage counter through predetermined counts used control variation in discharge rate. resulting digital signal can be converted back by charging capcitor.