Patent ID: 8970421
Filing Date: 2015-03-03
Classification: G04F,H03K,H03L,H03M

Abstract:
1. A time to digital converter, comprising: an input terminal configured to receive (i) a first input signal at a first time, and (ii) a second input signal at a second time, wherein the second time is subsequent to the first time; a pulse generator circuitry configured to generate a pulse signal based on the first input signal and the second input signal received at the input terminal, wherein a rising edge of the pulse signal occurs at the first time, and wherein a falling edge of the pulse signal occurs at the second time; an oscillator circuitry configured to generate a cyclic waveform; a voltage generator configured to, in response to the pulse signal provided by the pulse generator circuitry, an analog to digital converter configured to respectively convert the first analog voltage signal and the second analog voltage signal into a first digital voltage signal and a second digital voltage signal; and an encoder configured to encode the first digital voltage signal and the second digital voltage signal to generate a third digital voltage signal, wherein the third digital voltage signal is representative of a difference between the first time and the second time.