Abstract: The present invention relates to a reproduction device of a holographic memory capable of precisely reproducing multi-value phase information without being influenced by noise. This holographic memory reproduction device comprises: a hologram diffraction ray generation unit which irradiates a first reference ray to the holographic memory and generates a diffraction ray of the first hologram; a hologram generation unit which changes the phase of a second reference ray which may interfere with the diffraction ray of the first hologram and generates a second hologram from the diffraction ray of the first hologram and the second reference ray to which the phase has been changed; a detection unit which detects the intensity distribution of the second hologram; and a processing unit which demodulates the phase modulation signal or the space quadrature amplitude modulation signal on the basis of the intensity distribution.

Abstract: The present invention relates to a reproduction device of a holographic memory capable of precisely reproducing multi-value phase information without being influenced by noise. This holographic memory reproduction device comprises: a hologram diffraction ray generation unit which irradiates a first reference ray to the holographic memory and generates a diffraction ray of the first hologram; a hologram generation unit which changes the phase of a second reference ray which may interfere with the diffraction ray of the first hologram and generates a second hologram from the diffraction ray of the first hologram and the second reference ray to which the phase has been changed; a detection unit which detects the intensity distribution of the second hologram; and a processing unit which demodulates the phase modulation signal or the space quadrature amplitude modulation signal on the basis of the intensity distribution.

Abstract: A game control method of the invention provides an effective card in a card game, according to a speed of player's card drawing operation. Firstly, the operation is detected and a speed of the operation is calculated. Then, the speed is compared with a predetermined speed such as a previous average speed to determine the difference. On the other hand, an appearance card table defines types of cards to be provided for each game situation and the difference. The method determines a card to be supplied to the player in response to the operation, by referring to the table according to the game situation and the difference.

Abstract: A game control method of the invention provides an effective card in a card game, according to a speed of player's card drawing operation. Firstly, the operation is detected and a speed of the operation is calculated. Then, the speed is compared with a predetermined speed such as a previous average speed to determine the difference. On the other hand, an appearance card table defines types of cards to be provided for each game situation and the difference. The method determines a card to be supplied to the player in response to the operation, by referring to the table according to the game situation and the difference.