The present invention relates to detecting link failure in a receiver for receiving differential voltage signals, said link failure including any or all of a single short failure, double short failure, single open failure, and double open failure. The invention proposes 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 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 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; and determining that the link failure has occurred on the basis of the first quantity and the second quantity. The present invention further prop
