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US 2013/0278735 A1Published application
System, method and apparatus for wireless synchronizing three-dimensional eyewear
AssigneeVizio Inc.
InventorMarcus P. Apitz
Life of this patent
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Abstract
An application for transmission of a three-dimensional eyewear synchronization signal to synchronize the operation of shutters of three-dimensional eyewear uses an industry standard wireless transmission technique. To compensate for inherent latencies of such transmission techniques, the latencies are measured and monitored to determine expected latencies and the shutter synchronization signal is skewed by the latency. In some embodiments, the synchronization signal is further adjusted by a user skew control.
Claims22
A three-dimensional eyewear synchronization system comprising:
- an eyeware frame, having a receiver, and having shutters for each individual eye, the shutters closing to prevent image viewing in an eye, and opening to allow image viewing to an eye,
- the receiver receiving a synchronization packet indicative of timing on a remote transmitter,
- the receiver also receiving other packets indicative of other information;
- the receiver using the synchronization packet and also using a transmission latency to generate an internal synchronization timing;
- where the three-dimensional eyewear controls the shutters using said internal synchronization timing by locking on to information in the synchronization packet and modifying a timing in the synchronization packet using said transmission latency, and generating a first control signal for a left eye shutter of said shutters and a second control signal for a right eye shutter of said shutters.
2 more elements
A method comprising:
- receiving a synchronization packet indicative of timing on a remote transmitter into a receiver of an eyeware frame, the receiver also receiving other packets indicative of other information;
- operating shutters for each individual eye in said eyeware frame by closing to prevent image viewing in an eye, and opening to allow image viewing to an eye, the receiver using the synchronization packet and also using a transmission latency to generate an internal synchronization timing;
- controlling the shutters using said internal synchronization timing by locking on to information in the synchronization packet and modifying a timing in the synchronization packet using said transmission latency, and generating a first control signal for a left eye shutter of said shutters and a second control signal for a right eye shutter of said shutters.
A display system comprising:
- a television, the television having a display, the display presenting left-eye frames and right-eye frames for the display system;
- the television creating a synchronization signal representing a time of changing between displaying of the left-eye frame and displaying of the right-eye frame on the display;
- the television determining a latency transmission value to a remote receiver of said left eye frames and said right eye frames, and sending a synchronization packet synchronized to the synchronization signal at a time which is advanced in time based on the latency value by an amount such that the remote receiver can use the synchronization packet at a time that is estimated to be synchronized with the synchronization signal in the television.
Dependencies are inferred from the claim text.