Abstract: The present invention provides a method and a system for providing personal information services through managing access key for controlling dynamic access to PDS. The method includes: receiving, by a PDS, a storage space generation request signal from a user terminal; by the PDS, storing authentication information of a data service server and access number information, generating a user storage space, and transmitting address information of the user storage space and access-related information to the user terminal; by the data service server, generating an access key based on the access-related information and its own authentication information and transmitting a service request signal to the PDS, wherein the service request signal includes the access key; and by the PDS, verifying validity of the access key and performing a service when the access key is valid; wherein the access-related information includes the access number information and time information.

Abstract: A digital display device and a method for controlling the same are disclosed. The method of controlling a digital display device connected to at least one network and at least one memory includes receiving content (e.g., a TV program, etc.) over the at least one network, calculating memory capacity of an internal or external memory, storing the received content (e.g., a TV program, etc.) in the internal or external memory according to the calculated result, accessing the internal or external memory if a specific channel is selected, extracting the content (e.g., a TV program, etc.) stored in the accessed internal or external memory, and outputting video data and audio data corresponding to the extracted content (e.g., a TV program, etc.).

Abstract: A digital display device and a method for controlling the same are disclosed. The method of controlling a digital display device connected to at least one network and at least one memory includes receiving content (e.g., a TV program, etc.) over the at least one network, calculating memory capacity of an internal or external memory, storing the received content (e.g., a TV program, etc.) in the internal or external memory according to the calculated result, accessing the internal or external memory if a specific channel is selected, extracting the content (e.g., a TV program, etc.) stored in the accessed internal or external memory, and outputting video data and audio data corresponding to the extracted content (e.g., a TV program, etc.).