US 10,566,845 B2 · Techniques for clock synchronization and control in wireless power delivery environments

Abstract

Techniques for automated clock synchronization and control are discussed herein. For example, the techniques can include monitoring of transmissions for ‘known’ events and identifying timing or frequencies of such events. Deviations in the timing or frequencies of the events from expected times or frequencies may indicate that wireless power transmission system and receiver clocks are not synchronized. The deviations can be used to synchronize the clock for optimum wireless power transfer. Techniques are also described for enhancing clock control mechanisms to provide additional means for managing the adjustments of the clocks, as well as for enabling wireless power transmission systems to mimic client clock offsets for effective synchronization of events (e.g., beacon signals).

Claims20

Dependent claims

A method of facilitating synchronization between a wireless power receiver client and a wireless power transmission system in a wireless power delivery environment, the method comprising:

monitoring scheduled events related to wireless power transfers in the wireless power delivery environment,
wherein the scheduled events are associated with one or more expected properties;
detecting occurrence of a scheduled event comprising a beacon signal initiated by the wireless power receiver client and received by the wireless power transmission system or a wireless power transmission signal initiated by the wireless power transmission system and received by the wireless power receiver client;
identifying one or more properties of the scheduled event including a time that the scheduled event is received;
and
comparing the one or more properties of the scheduled event to expected properties associated with the event including comparing the time that the scheduled event is received to a time that the scheduled event is expected to be received to determine a clock differential between a clock of the wireless power receiver client and a clock of the wireless power transmission system.

3 more elements

A non-transitory computer-readable storage medium having program instructions stored thereon which, when executed by one or more processors, cause the one or more processors to facilitate synchronization between a wireless power receiver client and a wireless power transmission system in a wireless power delivery environment:

monitor scheduled events related to wireless power transfers in the wireless power delivery environment,
wherein the scheduled events are associated with one or more expected properties;
detect occurrence of a scheduled event comprising a beacon signal initiated by the wireless power receiver client and received by the wireless power transmission system or a wireless power transmission signal initiated by the wireless power transmission system and received by the wireless power receiver client;
identify one or more properties of the scheduled event including a time that the scheduled event is received;
and
compare the one or more properties of the scheduled event to expected properties associated with the event including comparing the time that the scheduled event is received to a time that the scheduled event is expected to be received to determine a clock differential between a clock of the wireless power receiver client and a clock of the wireless power transmission system.

3 more elements

A system for facilitating synchronization between a wireless power receiver client and a wireless power transmission system in a wireless power delivery environment, the system comprising:

control circuitry configured to:
monitor scheduled events related to wireless power transfers in the wireless power delivery environment,
wherein the scheduled events are associated with one or more expected properties;
detect occurrence of a scheduled event comprising a beacon signal initiated by the wireless power receiver client and received by the wireless power transmission system or a wireless power transmission signal initiated by the wireless power transmission system and received by the wireless power receiver client;
identify one or more properties of the scheduled event including a time that the scheduled event is received;
and
compare the one or more properties of the scheduled event to expected properties associated with the event including comparing the time that the scheduled event is received to a time that the scheduled event is expected to be received to determine a clock differential between a clock of the wireless power receiver client and a clock of the wireless power transmission system.

4 more elements

Dependencies are inferred from the claim text.

Techniques for clock synchronization and control in wireless power delivery environments

Life of this patent

Techniques for clock synchronization and control in wireless power delivery environments

Life of this patent

Abstract

Claims20