Sony patents car projector that uses sensors to stop image shaking
Sony describes a projection system for vehicles that uses a sensor on the car's floor to predict how the screen and projector will shake. It combines this prediction with real-time measurements to drive an actuator that physically stabilizes the projected image.
In the filing’s own words
The present disclosure relates to a projection system, a control device, and a control method capable of effectively suppressing vibration generated in an image. A first acceleration signal output from a first acceleration sensor provided at a bottom of a vehicle is analyzed, vibration to be generated in a screen and a projector device fixed to a ceiling of the vehicle is predicted, a predicted correction value based on the prediction is obtained, and a correction value based on actual measurements is obtained in accordance with relative behavior of the screen and the projector device. Control calculation is then performed by feeding back the correction value to the predicted correction value, and an amount of drive of an actuator for suppressing vibration of an image projected on the screen is obtained. The present technology can be applied to, for example, a projection system mounted on a vehicle.
What exactly they claim (claim 1)
1. A projection system comprising: a prediction calculation unit that analyzes a first acceleration signal output from a first acceleration sensor provided at a bottom of a vehicle, that predicts vibration to be generated in a screen and a projector device fixed to a ceiling of the vehicle, and that obtains a predicted correction value based on the prediction; a correction value calculation unit that obtains a correction value based on actual measurements in accordance with relative behavior of the screen and the projector device; and a control calculation unit that performs control calculation by feeding back the correction value to the predicted correction value and that obtains an amount of drive of an actuator for suppressing vibration of an image projected on the screen.
Facts
- Company
- Sony (SONY GROUP CORPORATION)
- Official title
- Projection system, control device, and control method
- Patent number
- US12739351B2
- Application number
- 19120858
- Filed
- Oct 3, 2023
- Granted
- Sep 15, 2026
- Inventors
- 6
- Claims
- 10
Classified under
H04N 9/3141 Electricity & electronicsH04N 1/00549 Electricity & electronicsMore from Sony in Cars & transport
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.