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Web cache memory device and browser apparatus utilizing the same
| Details |
Inventors: Yamamoto, Kazumichi; Umetani, Yukio; Suzuki, Norihiro; Yamaguchi, Muneaki;
Assignee: Hitachi, Ltd. (Tokyo, JP)
Primary Examiner: Nguyen; Than
Assistant Examiner:
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus, LLP
The present invention relates to a cache mechanism of a browser apparatus as a World Wide Web (WWW) client and aims at the improvement of utilization efficiency and the shortening of an information acquisition delay time. A cache is constituted in an HDD or DVD-RAM under the control of a Web cache program. A copy of acquired information is stored in the cache. A directory of the cache is managed by a Web cache management table, and the control is made so that the writing of the cache contents and necessary entries of the management table is completed before the DVD-RAM is removed from the browser apparatus. A browsing work can be continued smoothly by loading the DVD-RAM to another browser apparatus. Also, if an information provider provides information in a form stored in a disk in the form of a Web cache, the browsing of the information becomes possible with the same URL as that in WWW access. |
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DETAILED DESCRIPTION What is claimed is: 1.
A terminal apparatus comprising: a storage medium for storing information from a network as cache data, said storage medium being made freely detachable; and means for recording said information as cache data into a secondary memory device other than said storage medium, wherein: a first directory table is provided for associating an address of said in formation on said network and an address of said information on said storage medium stored as the cache data in said storage medium is provided in said storage medium, a second directory table is provided for associating an address of said information on said network and an address of said information on said secondary memory device stored as the cache data in said secondary memory device is provided in said secondary memory device, and means is provided for making the search of cache data by use of a third directory which is generated by merging said first directory table and said second directory table with the address of said information on said network used a key and is provided with a field for the address on said storage medium and a field for the address on said secondary memory device.
2.
A terminal apparatus according to claim 1, wherein means is provided for examining whether or not said first directory table exists in said storage medium at the time of mounting of said storage medium.
3.
A terminal apparatus according to claim 2, wherein means is provided for examining whether or not said first directory table exists in said storage medium at the time of mounting of said storage medium and merging, in the case where said first directory table exists, said first directory table into said third directory table with the address of said information on said network used as a key.
4.
A terminal apparatus according to claim 1, wherein means is provided with which at the time of removal of said storage medium, an entry inputted with the address of said information on said storage medium stored as the cache data in said storage medium is extracted in said third directory table, said first directory table is updated by information of the extracted entry, and the field for the address of the extracted entry on said storage medium is cleared
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Ring Tones 
