US 9,014,297 B2Granted

Data and/or command signal transmission device with antenna arrangements

AssigneeSwiss Timing Ltd

InventorMartin Bisig

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Abstract

The data and/or command signal transmission device includes a first signal generator connected to a first antenna arrangement, a second signal generator connected to a second antenna arrangement, a third signal generator connected to a third antenna arrangement, and a synchronization circuit. The synchronization circuit performs data amplitude modulation by combining the signals transmitted by the antenna arrangements. The signals transmitted by the first and third antenna arrangements are in-phase in a first stable modulation state and 180° out of phase in a second stable modulation state. In a modulation state transition phase, the first and third signals delivered by the first and third generators are at a different frequency from the carrier frequency of the signals delivered by the second generator. The resonance frequency of the first and third antenna arrangements is also adapted in the transition phase.

Claims18

Dependent claims

A data and/or command signal transmission device, comprising:

a first signal generator connected to a first antenna arrangement,
a second signal generator connected to a second antenna arrangement,
an oscillator for delivering an oscillating signal, in order to clock the signal generators to control each antenna arrangement, and
a synchronisation circuit connected at least to the first signal generator and to the first and second antenna arrangements, the synchronisation circuit being arranged to receive as an input a modulation signal of data and/or command and to control, in a synchronous manner, the first signal generator and the first and second antenna arrangements to perform amplitude modulation on the data and/or command to be transmitted on at least two amplitude levels by a combination of signals transmitted by the antenna arrangements, a first stable modulation state on a first amplitude level being defined when the signals transmitted at a defined carrier frequency f0 by the first and second antenna arrangements are in-phase, and a second stable modulation state on a second amplitude level being defined when the signals transmitted at the defined carrier frequency f0 by the first antenna arrangement are 180° out of phase from the signals transmitted at the defined carrier frequency f0 by the second antenna arrangement,
wherein the synchronisation circuit is arranged to temporarily and dynamically switch the first signal generator for delivery of signals to the first antenna arrangement at a frequency f1 higher or lower than the carrier frequency f0 in a transition phase from a first modulation state to a second modulation state or vice versa in a synchronous manner on the basis of n signal cycles at the carrier frequency f0 transmitted by the second antenna arrangement and counted in the synchronisation circuit, where n is an integer number defining a number of cycles at frequency f0, and
wherein the synchronisation circuit is arranged to adapt, in an inductive or capacitive manner, a resonance frequency of the first antenna arrangement to frequency f1 of the signals delivered by the first signal generator during the modulation state transition phase relative to a resonance frequency determined at the carrier frequency f0 of the first and second antenna arrangements in the first or second stable modulation state.

3 more elements

A method of actuating a data and/or command signal transmission device, which includes

a first signal generator connected to a first antenna arrangement,
a second signal generator connected to a second antenna arrangement,
an oscillator for delivering an oscillating signal, in order to clock the signal generators to control each antenna arrangement, and
a synchronisation circuit connected at least to the first signal generator and to the first and second antenna arrangements,
said method comprising:
delivering a data and/or command modulation signal to the synchronisation circuit;
synchronously controlling via the synchronisation circuit at least the first signal generator, and the first and second antenna arrangements to perform amplitude modulation on the data and/or command to be transmitted on at least two amplitude levels by combining signals transmitted by the antenna arrangements, a first stable modulation state on a first amplitude level being defined when the signals transmitted at a defined carrier frequency f0 by the first and second antenna arrangements are in-phase, and a second stable modulation state on a second amplitude level being defined when the signals transmitted at the defined carrier frequency f0 by the first antenna arrangement are 180° out of phase from the signals transmitted at the defined carrier frequency f0 by the second antenna arrangement;
temporarily and dynamically switching the first signal generator via the synchronisation circuit for delivery to the first antenna arrangement of signals at a frequency f1 lower or higher than the carrier frequency f0 in a modulation state transition phase and synchronously on the basis of n cycles of signals at carrier frequency f0 transmitted by the second antenna arrangement and counted in the synchronisation circuit, where n is an integer number defining a number of cycles at frequency f0;
and
adapting, in an inductive or capacitive manner, a resonance frequency of the first antenna arrangement to frequency f1 during the modulation state transition phase.

7 more elements

A method of actuating a data and/or command signal transmission device, which includes

a first signal generator connected to a first antenna arrangement,
a second signal generator connected to a second antenna arrangement,
a third signal generator connected to a third antenna arrangement,
an oscillator for delivering an oscillating signal, in order to clock the signal generators to control each antenna arrangement, and
a synchronisation circuit connected at least to the first signal generator and to the first and second antenna arrangements,
said method comprising:
delivering a data and/or command modulation signal to the synchronisation circuit;
synchronously controlling via the synchronisation circuit at least the first signal generator and the third signal generator, and the first, second and third antenna arrangements to perform amplitude modulation on the data and/or command to be transmitted on at least two amplitude levels by combining signals transmitted by the antenna arrangements, a first stable modulation state on a first amplitude level being defined when the signals transmitted at a defined carrier frequency f0 by at least one of the first, second and third antenna arrangements are in-phase, and a second stable modulation state on a second amplitude level being defined when the signals transmitted at the defined carrier frequency f0 by the first and third antenna arrangements are 180° out of phase from the signals transmitted at the defined carrier frequency f0 by the second antenna arrangement;
temporarily and dynamically switching the first and third signal generators via the synchronisation circuit for delivery to the first antenna arrangement of signals at a frequency f1 lower or higher than the carrier frequency f0, and for delivery to the third antenna arrangement of signals at a frequency f3 higher or lower than carrier frequency f0 and inversely to frequency f1 in a modulation state transition phase and synchronously on the basis of n cycles of signals at carrier frequency f0 transmitted by the second antenna arrangement and counted in the synchronisation circuit, where n is an integer number defining a number of cycles at frequency f0;
and
adapting, in an inductive or capacitive manner, a resonance frequency of the first antenna arrangement to frequency f1 and a resonance frequency of the third antenna arrangement to frequency f3 during the modulation state transition phase.

8 more elements

Dependencies are inferred from the claim text.