Abstract: For generation of a subtitle in a digital movie screening system, it is essential to reduce the burden of processing the subtitle when screening a movie.

Abstract: A lamp driving apparatus configured to drive a plurality of types of lamps, each of the plurality of lamps is attached with lamp identification information for uniquely identifying the lamp. The lamp driving apparatus includes: a lamp power supply configured to drive the lamp; a read circuit configured to read the lamp identification information from the lamp; and a control circuit configured to control the lamp power supply on the basis of a result of identification obtained by use of the read lamp identification information. The control circuit, if the lamp is found to be authorized, makes the lamp power supply drive the lamp.

Abstract: A digital movie screening system in which a movie subtitle can easily be used with protection of the copyright on the subtitle. A character information generating apparatus includes an encryption unit to encrypt a font file including data for displaying characters in a specific font, and a character information file generator to generate a character information file including a main file describing therein text data representing the content of characters to be displayed on a display unit and control data for displaying the characters and a font file encrypted by the encryption unit. The character information file generator also describes, in the main file, information on whether a font file indicated with a pointer, if any, described in the main file is an encrypted file.

Abstract: A lamp driving apparatus configured to drive a plurality of types of lamps, each of the plurality of lamps is attached with lamp identification information for uniquely identifying the lamp. The lamp driving apparatus includes: a lamp power supply configured to drive the lamp; a read circuit configured to read the lamp identification information from the lamp; and a control circuit configured to control the lamp power supply on the basis of a result of identification obtained by use of the read lamp identification information. The control circuit, if the lamp is found to be authorized, makes the lamp power supply drive the lamp.

Abstract: For generation of a subtitle in a digital movie screening system, it is essential to reduce the burden of processing the subtitle when screening a movie.

Abstract: The present invention provides a digital movie screening system in which a movie subtitle can easily be used with protection of the copyright on the subtitle. There is provided a character information generating apparatus, which includes an encryption unit to encrypt a font file including data for displaying characters in a specific font, and a character information file generator to generate a character information file including a main file having described therein text data representing the content of characters to be displayed on a display unit and control data for displaying the characters and a font file encrypted by the encryption unit, the character information file generator also describing, in the main file, information on whether a font file indicated with a pointer, if any, described in the main file is an encrypted one.