Method and apparatus for synchronizing a mechanical oscillating system to the accuracy of a quartz standard
OwnerHansrichard Schulz, Herbert Hummelinventors
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Abstract
An arrangement for synchronizing a mechanical oscillating system to the accuracy of a quartz standard, in particular the timing of a clock. Timing pulses are derived from a quartz oscillation, and these act on the frequency of the oscillating system. An "existing value" signal is derived from the oscillating system, and frequency deviations of the existing value signal from the timing pulses are detected by a phase comparison. The frequency of the mechanical oscillating system is processed in accordance with the deviations that are detected.
Claims32
A method of indirect synchronization of a mechanical oscillating system to the accuracy of a quartz standard, in particular the timing control of a clock, comprising the steps of:
- generating timing pulses from a quartz oscillator;
- deriving an existing-value signal from said oscillating system;
- comparing said existing-value signal with said timing pulses by a phase comparison and detecting frequency deviations of said existing-value signal;
- and adjusting the frequency of said mechanical oscillating system dependent on the deviations detected.
Apparatus for indirect synchronization of a mechanical oscillating system to the accuracy of a quartz standard, in particular the timing control of a clock, comprising:
- a quartz timing generator;
- a phase comparison stage with inputs;
- a frequency divider connected between said timing generator and an input of said comparison stage for applying said timing pulses of said generator to said comparison stage;
- said mechanical oscillating system having an existing-value output connected to a second input of said comparison stage;
- means for adjusting the frequency of said oscillating system and connected to the output of said comparison stage, said adjusting means being continuously adjustable by the output of said phase comparison stage.
Apparatus for indirect synchronization of a mechanical oscillating system to the accuracy of a quartz standard, in particular the timing control of a clock comprising:
- two phase comparison stages;
- a quartz oscillator with a frequency divider connected thereto;
- said phase comparison stages being connected downstream of said frequency divider;
- a mechanical-electrical transducer on said mechanical oscillating system and connected to said phase comparison stages;
- a bistable electromechanical transducer with two triggering inputs connected to the outputs of said phase comparison stages, said bistable electromechanical transducer adjusting the frequency of said mechanical oscillating system.
Dependencies are inferred from the claim text.