Confidential projection system and confidential projection method
The invention provides a confidential projection system and a confidential projection method. The system comprises a projection system, a secrecy system and a master control system which work cooperatively, and on one hand, the master control system controls the projection system to receive image da...
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| creator | WEI HAIWEN |
| description | The invention provides a confidential projection system and a confidential projection method. The system comprises a projection system, a secrecy system and a master control system which work cooperatively, and on one hand, the master control system controls the projection system to receive image data displayed by terminal equipment and projects the image data to a shared screen; on the other hand, the control secrecy system responds to the secrecy demand instruction to start at least one of an anti-recording device, an anti-disassembly self-destruction device and a wireless signal shielding device; the anti-recording device is used for outputting disordered ultrasonic signals, the anti-disassembly self-destruction device is used for applying breakdown voltage to a host and a memory of the projection system, and the wireless signal shielding device is used for transmitting electromagnetic waves in a mobile communication working frequency band. According to the invention, aiming at interference of stealing and |
| format | Patent |
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The system comprises a projection system, a secrecy system and a master control system which work cooperatively, and on one hand, the master control system controls the projection system to receive image data displayed by terminal equipment and projects the image data to a shared screen; on the other hand, the control secrecy system responds to the secrecy demand instruction to start at least one of an anti-recording device, an anti-disassembly self-destruction device and a wireless signal shielding device; the anti-recording device is used for outputting disordered ultrasonic signals, the anti-disassembly self-destruction device is used for applying breakdown voltage to a host and a memory of the projection system, and the wireless signal shielding device is used for transmitting electromagnetic waves in a mobile communication working frequency band. 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| language | chi ; eng |
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| subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PUBLIC ADDRESS SYSTEMS SOUND-PRODUCING DEVICES |
| title | Confidential projection system and confidential projection method |
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