Smart compact disk including a processor and a transmission element
First Claim
1. An apparatus comprising:
- a compact disk including an optically readable data area;
a processor disposed on the compact disk;
a charging array disposed radially around the compact disk;
a storage array, the storage array coupled to the charging array and storing charge received from the charging array, the storage array coupled to the processor for supplying power to the processor; and
a transmission element disposed on the compact disk and coupled to the processor, the transmission element being controllably coupled to the processor to controllably permit light to be reflected through said transmission element, thereby imparting an informational signal to an optical sensor.
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0 Petitions
Accused Products
Abstract
A compact disk includes a processor and a transmission element under control of the processor. A laser in a compact disk read head illuminates a photosensitive array disposed on the compact disk to generate a current in a charging array. The current generated in charging array is supplied to a storage element. The storage element supplies the processor with power. The processor controls a transmission element electrically coupled to the processor and optically coupled to the compact disk reader to impart an informational signal to the compact disk reader such as a cryptographic key to control utilization of the contents of the CD. The CD can be written to by the CD controller by having the CD read circuit control the light provided to the photosensitive array to impart an information signal to the photosensitive sensitive array. A circuit is coupled to the light sensitive array to time the on and off state of the current supplied to the light sensitive array and to thereby detect the informational signal from the compact disk reader circuit.
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Citations
28 Claims
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1. An apparatus comprising:
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a compact disk including an optically readable data area; a processor disposed on the compact disk; a charging array disposed radially around the compact disk; a storage array, the storage array coupled to the charging array and storing charge received from the charging array, the storage array coupled to the processor for supplying power to the processor; and a transmission element disposed on the compact disk and coupled to the processor, the transmission element being controllably coupled to the processor to controllably permit light to be reflected through said transmission element, thereby imparting an informational signal to an optical sensor. - View Dependent Claims (8, 9, 13)
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2. An apparatus comprising:
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a compact disk including an optically readable data area; a processor disposed on the compact disk; a transmission element disposed on the compact disk, the transmission element illuminated by laser light from an optical head, the transmission element controllably reflecting laser light to a light sensor, and wherein the transmission element is coupled to and controlled by the processor to impart an informational signal to an optical sensor in the optical head. - View Dependent Claims (3, 10, 11, 12, 14)
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4. An apparatus comprising:
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a compact disk including an optically readable data area; a processor disposed on the compact disk; a transmission element disposed on the compact disk and coupled to and controlled by the processor, the transmission element transmitting light to a light sensor in a read head to impart an informational signal to the light sensor. - View Dependent Claims (5, 6, 7)
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15. A computer system comprising:
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a compact disk read circuit; a compact disk including an optically readable data area, readable by the compact disk read circuit; a processor disposed on the compact disk; and a transmission element on the compact disk, for imparting an informational signal to the compact disk read circuit which is readable by the compact disk read circuit, the transmission element being coupled to and controlled by the processor. - View Dependent Claims (16)
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17. A method of communicating between a compact disk and a compact disk read head, the compact disk including a processor and a transmission element under control of the processor, the method comprising the steps of:
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illuminating a photosensitive array disposed on the compact disk as a charging array to generate a current in the charging array; providing the current to a storage element; supplying the processor with power from the storage element; and controlling a transmission element electrically coupled to the processor and optically coupled to the compact disk read head to impart an informational signal to the compact disk read head. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method of communicating between a compact disk and a compact disk reader, the compact disk including a processor and a transmission element coupled to the processor, the method comprising:
controlling the transmission element which is electrically coupled to the processor and optically coupled to the compact disk reader, to impart a read informational signal to the compact disk reader. - View Dependent Claims (24, 25, 26, 27)
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28. A method of communicating between a compact disk including a processor and a transmission element coupled to the processor and a compact disk reader, comprising the step of:
controlling a transmission element electrically coupled to the processor and optically coupled to the compact disk reader, the transmission element imparting an informational signal to the compact disk reader, to prevent the compact disk reader from accurately reading a predetermined pattern from the compact disk.
Specification