Device for generating a time signal, and system comprising such a device

摘要

A device comprises a first time generator for generating an internal time signal, a unit for receiving an external time signal at discrete synchronization times and a generator unit for producing a generated time signal, which generator unit is designed to calculate on the basis of an algorithm the generated time signal at a determination time between two synchronization times from a value of the external time signal at a previous synchronization time and from a value of the internal time signal at the determination time. Said algorithm includes an assumption of a proportionality between an advance in the internal time signal and an advance in the external time signal.

主权项

1. A device comprising:
a first time generator for generating an internal time signal, a unit for receiving an external time signal at discrete synchronization times, and a generator unit for producing a generated time signal, wherein the generator unit is designed to calculate on the basis of an algorithm the generated time signal at a determination time between two synchronization times from a value of the external time signal at a previous synchronization time and from a value of the internal time signal at the determination time, wherein the algorithm includes an assumption of a proportionality between an advance in the internal time signal and an advance in the external time signal; wherein the algorithm includes the assumption that a ratio of advances in the external time signal and in the internal time signal between the last synchronization time and the determination time equals a ratio of advances in the external time signal and in the internal time signal between the next-to-last synchronization time and the last synchronization time; and wherein the algorithm is designed to calculate the generated time signal at the determination time as the sum of a value of the external time signal at the last synchronization time and of a product formed by multiplying the advance in the internal time signal between the last synchronization time and the determination time with the ratio of the advance in the external time signal between the next-to-last synchronization time and the last synchronization time to the advance in the internal time signal between the next-to-last synchronization time and the last synchronization time.