Patent ID: 9344060
Filing Date: 2016-05-17
CPC Classification: G06F,H03B,H03H,H03K,H03M

Claim Text:
1. Signal-alignment circuitry, comprising: phase-rotation circuitry connected to receive one or more input clock signals each having a phase and operable to generate therefrom a plurality of output clock signals each having a phase, the phase-rotation circuitry being capable of causing the phases of said output clock signals to rotate by full rotations; divider circuitry connected to output derived clock signals each having a phase by division of corresponding said output signals; and control circuitry configured to control the amount of phase rotation applied by the phase-rotation circuitry to carry out a plurality of alignment operations, the alignment operations comprising: one or more first operations each comprising causing the phase of one or more of said output clock signals to rotate relative to the phase of one or more of the other said output clock signals, so as to bring derived clock signals towards or into a given phase relationship; and one or more second operations each comprising causing the phases of all of said output clock signals to rotate together, so as to bring said output or derived clock signals and said one or more input clock signals or an external-reference signal towards or into a given phase relationship.