Patent ID: 9544103
Date: 2017-01-10
CPC Classifications: G01R,H03K,H04B,H04L

Claim:
1. A method of determining link failure in a receiver for receiving a differential voltage signal via a first signal line and a second signal line, the method comprising: obtaining, using a link failure detector, a first quantity depending on the larger one of a maximum value over time of a voltage level that is attained in the first signal line and a maximum value over time of a voltage level that is attained in the second signal line; obtaining, using the link failure detector, a second quantity depending on a maximum value over time of an average of an instantaneous voltage level in the first signal line and an instantaneous voltage level in the second signal line; determining, using the link failure detector, that the link failure has occurred on the basis of the first quantity and the second quantity; and outputting an indication of the link failure.