Patent ID: 8842780
Filing Date: 2014-09-23
Classification: H04L

Abstract:
1. An apparatus comprising: a peak detector that is configured to detect a peak voltage; a first comparator that is coupled to the peak detector and that receives a first threshold voltage; a threshold generator that is coupled to the peak detector, wherein the threshold generator is configured to generate a second threshold voltage that is proportional to the peak voltage; a delay circuit that is coupled to the first comparator; and a second comparator that is coupled to the delay circuit and that is coupled to the threshold generator so as to receive the second threshold voltage; wherein the peak detector further comprises: wherein the delay circuit further comprises a delay line; and wherein the delay line further comprises a plurality of buffers coupled together in series with one another in a sequence, and wherein the capacitor and current source further comprise a first capacitor and a first current source, respectively, and wherein the delay circuit further comprises: