Patent ID: 6680897
Filing Date: 2004-01-20
Classification: G06K,G11B

Abstract:
A recording disk having a recording medium and a memory assembly which is disposed in an annular or spiral form at a certain position on said disk, said memory assembly comprising a memory which stores information, a signal processor which writes or reads out information to/from said memory, a transmitter-receiver which transacts information with an exterior of said disk, a controller which controls said memory, signal processor and transmitter-receiver, a receiver which receives power in the form of a signal supplied from the exterior of said disk for the operation of said memory, signal processor, transmitter-receiver and controller, and a rectifier which converts the signal received by said receiver into power;wherein said memory, signal processor, controller, rectifier, and transmitter-receiver and/or receiver are at least partially formed of a semiconductor integrated circuit; and wherein at least portions of said memory, signal processor and controller are covered with light-blocking resin.