Recording medium cartridge with memory circuit for storing directory information including images
First Claim
1. A method for cataloguing information representative of signals recorded on a recording medium, said recording medium being accommodated within a recording medium cartridge, comprising the steps of:
- providing a memory device as part of said recording medium cartridge and separate from said recording medium; and
storing said information in said memory device in the form of a plurality of data packets, the size and format of said data packets having been determined prior to the storing of said information;
wherein said information is organized according to a hierarchical structure, said hierarchical structure including at least two levels and being capable of accommodating more than two levels; and
wherein said information includes at least one image data that is derived from a moving image signal.
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Abstract
A recording medium cartridge includes a memory circuit for storing information concerning signals recorded on the recording medium within the cartridge. The information is stored in the memory circuit in the form of a hierarchic data structure which includes a plurality of data packets having a predetermined form and length. Each data packet includes a code indicative of a level in the data structure to which the data packet belongs. At least some of the data packets include data indicative of starting and ending positions on the recording medium of recorded signals which the data packet represents. The hierarchic (or "tree") data structure facilitates rapid retrieval and reproduction of the signals recorded on the recording medium, particularly when the recording medium is a magnetic tape. The tree structure also facilitates storage of information in connection with recording of additional signals on the recording medium.
47 Citations
20 Claims
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1. A method for cataloguing information representative of signals recorded on a recording medium, said recording medium being accommodated within a recording medium cartridge, comprising the steps of:
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providing a memory device as part of said recording medium cartridge and separate from said recording medium; and storing said information in said memory device in the form of a plurality of data packets, the size and format of said data packets having been determined prior to the storing of said information; wherein said information is organized according to a hierarchical structure, said hierarchical structure including at least two levels and being capable of accommodating more than two levels; and wherein said information includes at least one image data that is derived from a moving image signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A recording medium cartridge, comprising:
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a recording medium for recording one or more signals; and a memory device, separate from said recording medium, for storing information representative of said signals recorded on said recording medium; said information being stored in said memory device in the form of a plurality of data packets, the size and format of said data packets having been determined prior to the storing of said information in said memory device;
said information being organized according to a hierarchical structure, said hierarchical structure including at least two levels and being capable of accommodating more than two levels; and
said information including at least one image data that is derived from a moving image signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification