Frequency and/or Time Transfer Apparatus, System and Method
AssigneeNpl Management Limited
InventorJochen Kronjaeger
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Abstract
A frequency and/or time transfer apparatus, including a modulator system is disclosed. The modulator system includes a port for providing a first modulated signal to a remote location via a communication path and for receiving a second modulated signal from the remote location via the communication path. The modulator system is configured in operation to utilise a first modulation signal to produce the first modulated signal, the first modulated signal comprising the first modulation signal imprinted onto a first carrier signal, and to provide a reverse modulation for the second modulated signal. The first modulation signal is periodic. There exists a reversing modulation signal which reverses and is reversed by the first modulation signal.
Claims20
A frequency and/or time transfer apparatus, comprising:
- (a) a modulator system comprising:
- (i) a port for providing a first modulated signal to a remote location via a communication path and for receiving a second modulated signal from the remote location via the communication path;
- wherein the modulator system is configured in operation to utilize a first modulation signal to produce the first modulated signal, the first modulated signal comprising the first modulation signal imprinted onto a first carrier signal, and to provide a reverse modulation for the second modulated signal;
- wherein the first modulation signal is periodic;
- and
- wherein there exists a reversing modulation signal which reverses and is reversed by the first modulation signal.
A method, comprising, at a first frequency and/or time transfer apparatus:
- utilising a first modulation signal to produce a first modulated signal for providing to a remote location, the first modulated signal comprising the first modulation signal imprinted onto a first carrier signal, and to provide a reverse modulation for a second modulated signal received from the remote location;
- wherein the first modulation signal is periodic;
- and
- wherein there exists a reversing modulation signal which reverses and is reversed by the first modulation signal.
Dependencies are inferred from the claim text.