Abstract: A method and an apparatus for recording and reproducing information comprising irradiating a light spot for recording and reproducing information and a plurality of light spots for tracking an information-recording region of an optical information-recording medium including tracks or guiding, projecting reflected beams from the optical information-recording medium due to said light spot for recording and reproducing information and plurality of light spots for tracking on a photosensor, and selecting two outputs from a plurality of electrical outputs for tracking from said photosensor to provide tracking-control signals.

Abstract: A read/write apparatus for information memory card which is improved in durability of the card and the apparatus itself, and in reliability of information processing.When a card is completely inserted, a connector is swung toward the card until contactors of the connector are pressed on terminals of a memory built in the card, so that the memory and an information processing unit are connected via the connector to facilitate flawless information exchange therebetween, whereby data processing is ensured.Upon completion of information processing, the connector is detached from the card so that the movement of the card causes no wear or damage on the contactors nor the card itself.

Abstract: In an optical memory card reading device of the type comprising a card feeding means for feeding a card inserted into an insertion inlet into the device, an optical reader means for illuminating the memory surface of the optical memory card thus fed in and receiving the reflected light rays from the memory surface and a circuit for converting the information read out by the optical reader means into an electric signal which in turn is analyzed to detect the contents in the memory, an optical memory card reading device characterized by the provision of a card cleaning means which is disposed adjacent to the card insertion inlet for cleaning the memory of the inserted card.

Abstract: A gift coupon detectable by a bill sorter, comprising a rectangular paper having a width capable of being inserted into a travelling path of the bill sorter and also having predetermined characters and design, the gift coupon further having: a first data train comprising data units formed by a magnetic ink and arranged in a row at predetermined intervals, and a second data train comprising data units corresponding respectively to the data units of the first data train, formed by a magnetic ink and arranged in a row, data units in predetermined positions of the second data train being cut off to provide blank units to record data required for the gift coupon such as the significance of an amount of money, the name of commodity to be exchanged, etc.