Abstract: A key lock means set on a tablet personal computer and application method of the same are provided, wherein the key lock means comprises a graphic input device, a typing input device, and means for signal associating. The graphic input device is used for generating and transmitting a first signal to an operating system of the tablet computer. The typing input device is used for generating and transmitting a second signal to the operating system of the tablet computer. The means for signal associating is used for monitoring and controlling the transmitting process of the first and second signals. When the first signal is detected, the means for signal associating can prevent the typing input device from transmitting the second signal into the operating system of the tablet personal computer.

Abstract: The invention discloses a data transmitting and receiving system comprising a first service provider, a second service provider, and an electronic device. The first service provider provides a plurality of media information and a plurality of tags, where each of the media information corresponds to one of the tags respectively. The second service provider provides a plurality of image files, wherein each of the image files records one of the tags respectively. The electronic device receives one of the image files from the second service provider, translates the tag from the image file, and downloads the media information corresponding to the tag.

Abstract: The invention relates to an electronic apparatus including N functional keys, M functional modules, a communication module, and a processing module. Each of the M functional modules is in charge of a specific function. N is a natural number, and M is an integer larger than N. The communication module is capable of linking through a communication network to a server where N pre-defined definitions are stored. Each of the N pre-defined definitions corresponds to one of the N functional keys and indicates one of the M functional modules. The processing module is responsive to the key-in action of one of the functional keys and downloads the corresponding definition from the server through the communication module and the communication network, and drives one of the functional modules to perform the function charged by the functional module based on the downloaded corresponding definition.

Abstract: A key lock means set on a tablet personal computer and application method of the same are provided, wherein the key lock means comprises a graphic input device, a typing input device, and means for signal associating. The graphic input device is used for generating and transmitting a first signal to an operating system of the tablet computer. The typing input device is used for generating and transmitting a second signal to the operating system of the tablet computer. The means for signal associating is used for monitoring and controlling the transmitting process of the first and second signals. When the first signal is detected, the means for signal associating can prevent the typing input device from transmitting the second signal into the operating system of the tablet personal computer.