Methods and systems of vibrating a screen
AssigneeIMAX Theatres International Limited
InventorsDenis Gilles Tremblay, Gashtaseb Ariana
Life of this patent
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Abstract
A screen can be vibrated by vibrators that are drivable by signals. Each vibrator can be adjacent in position to other vibrators that are drivable by different types of drive signals than a drive signal associated with the vibrator. The number of drive signals can be equal to or less than the number of vibrators. A vibrator assembly for a vibrator can include a baffle and a transducer that couples to the baffle. The transducer can vibrate at least a portion of the screen. The vibrating screen can be monitored by a sensor and an analyzer unit that can analyze image speckle and screen displacement artifacts in captured images of images projected onto the screen and output results of the analysis.
Claims24
A screen system, comprising:
- a screen;
- a plurality of vibrators positionable with respect to the screen for vibrating the screen, the plurality of vibrators being separately drivable by uncorrelated drive signals of different types, each vibrator of the plurality of vibrators being adjacent in position to other vibrators drivable by different types of drive signals than a drive signal associated with the vibrator, a number of drive signals being equal to or less than a number of vibrators of the plurality of vibrators.
A screen vibrator assembly, comprising:
- a baffle;
- and
- a transducer for coupling to the baffle and vibrating at least part of a screen, wherein the screen vibrator assembly is positionable with other screen vibrator assemblies with respect to the screen and is drivable by a vibrator drive signal that is a different type than types of drive signals driving the other screen vibrator assemblies adjacent to the screen vibrator assembly.
A method comprising:
- driving a vibrator of a plurality of vibrators that vibrate a screen using a first type of drive signal;
- and
- driving other vibrators of the plurality of vibrators that are adjacent in position to the vibrator using different types of drive signals than the first type of drive signal.
A method comprising:
- displaying an image onto a screen to evaluate speckle and visual screen displacement artifacts;
- capturing the image displayed onto the screen using an image sensor;
- determining a first vibration setting for a vibrator by analyzing the image captured by the image sensor for speckle artifacts and visual screen displacement artifacts;
- adjusting the vibrator using the first vibration setting;
- capturing a second image displayed onto the screen using the image sensor;
- and
- determining whether the speckle artifacts and visual screen displacement artifacts are within a predetermined acceptable amount.
A vibrating screen-monitoring system, comprising:
- a sensor positionable for capturing an image with screen-displacement artifacts in response to an input that indicates when to capture the image;
- and
- an analyzer unit configured to store a captured image from the sensor, to analyze the screen displacement artifacts in the captured image for determining a functional status of a screen vibrator system that includes a plurality of vibrators positioned to vibrate the screen, and to set a flag in response to determining the functional status of the screen vibrator system.
Dependencies are inferred from the claim text.