20150149755 | PROJECTOR AND BOOT UP METHOD THEREOF - A projector comprises an environment detecting module and a processing module. The environment detecting module detects a predetermined environmental information at a first time and a real-time environmental information at a second time. The processing module is coupled to the environment detecting module, receives the predetermined environmental information and the real-time environmental information and executes a boot up method. The boot up method includes the steps of: storing and defining the predetermined environmental information as a comparison reference; and comparing the predetermined environmental information with the real-time environmental information, wherein when the predetermined environmental information and the real-time environmental information are substantially the same, a boot up program is executed, and when the predetermined environmental information and the real-time environmental information are substantially different, an authorization command request is outputted. A boot up method of a projector is also disclosed. | 05-28-2015 |