Data storage system
First Claim
Patent Images
1. A data storage system, comprising:
- a vehicle-mounted terminal mounted on a vehicle; and
an information center for transmitting data to said vehicle-mounted terminal in response to a request from said vehicle-mounted terminal, and in which said vehicle-mounted terminal includes terminal communicating means for communicating with said information center, temporary cache means for temporarily storing therein said data, permanent cache means for storing therein said data for a predetermined period, and memory selecting means for selectively having said temporary cache means and said permanent cache means store therein said data received by said terminal communicating means, and said information center includes center communicating means for communicating with said vehicle-mounted terminal, and data sorting means for sorting said data into temporary cache data to be stored in said temporary cache means and permanent cache data to be stored in said permanent cache means.
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Accused Products
Abstract
A data storage system comprises a temporary cache for temporarily storing data, a permanent cache for storing data for a predetermined period, and a memory selector for selectively having the temporary cache and the permanent cache store the data received by a terminal communicator. A data sorter sorts the data into temporary cache data to be stored in the temporary cache and permanent cache data to be stored in the permanent cache. In this way, it may be unnecessary to confirm whether or not the permanent cache data is updated in the permanent cache may be eliminated.
8 Citations
14 Claims
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1. A data storage system, comprising:
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a vehicle-mounted terminal mounted on a vehicle; and
an information center for transmitting data to said vehicle-mounted terminal in response to a request from said vehicle-mounted terminal, and in which said vehicle-mounted terminal includes terminal communicating means for communicating with said information center, temporary cache means for temporarily storing therein said data, permanent cache means for storing therein said data for a predetermined period, and memory selecting means for selectively having said temporary cache means and said permanent cache means store therein said data received by said terminal communicating means, and said information center includes center communicating means for communicating with said vehicle-mounted terminal, and data sorting means for sorting said data into temporary cache data to be stored in said temporary cache means and permanent cache data to be stored in said permanent cache means. - View Dependent Claims (2, 3, 4, 10, 11, 12, 13)
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5. A vehicle-mounted terminal mounted on a vehicle, comprising:
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terminal communicating means for communicating with an information center operative to transmit data, temporary cache means for temporarily storing therein said data, permanent cache means for storing therein said data for a predetermined period, and memory selecting means for selectively having said temporary cache means and said permanent cache means store therein said data.
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6. An information center comprising:
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center communicating means for transmitting data to a vehicle-mounted terminal in response to a request from said vehicle-mounted terminal; and
data sorting means for sorting said data into temporary cache data to be temporarily stored in said vehicle-mounted terminal and permanent cache data to be stored for a predetermined period in said vehicle-mounted terminal.
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7. A data storage method, comprising:
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a data sorting step of sorting data into temporary cache data to be temporarily stored and permanent cache data to be stored for a predetermined period;
a temporary storing step of temporarily storing therein said temporary cache data; and
a permanent storing step of storing therein said permanent cache data. - View Dependent Claims (8, 9, 14)
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Specification