Patent ID: 9479187
Filing Date: 2016-10-25
CPC Classification: G04F,H03M,H04L

Claim Text:
1. A time-to-digital converter (TDC) comprising: a delay line including a plurality of delay elements configured to propagate a first edge of a first signal sequentially through the plurality of delay elements; a selection circuit having a plurality of outputs, each output of the plurality of outputs individually coupled to an input of each delay element of the plurality of delay elements, the selection circuit configured to receive the first signal, to receive prediction information, and to route the first signal to an input of one of the plurality of delay elements via a corresponding, individually-coupled output of the plurality of outputs of the selection circuit based on the prediction information; and a latch circuit configured to receive a second signal and to latch a plurality of outputs of the delay line upon reception of a second edge of the second signal, and output an indication of a delay between the first edge and the second edge.