EP0488676A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data disc and method for retrieving data stored thereon
Assignee: Sony Corp
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Filing: 1991-11-27
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Granted: —
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Expires: 2011-11-27
Abstract
Abstract A data disc, on which there are recorded main text data including map data for displaying a picture, map data pointer information as pointer information for the map data, item data for retrieving the main text data, display position data indicating the display position of the item data on a display screen, and address data for reading out data corresponding to different items. The data disc is reproduced so that the map data are read out from the disc at the same time that the item data are displayed in superimposition on the display screen at a position indicated by the display position data of the read-out map data, and output data corresponding to the item data are read out from the main text data on the basis of the address data for unifying the data recording format and retrieval method to enable reciprocal retrieval of the letter data, map data and voice data.
Inventors
- 👤 Norimasa Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 10:48
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/926; H04N5/9265; H04N5/9267; G; G11; G11B; G11B27/00; G11B27/10; G06; G06F; G06F12/00; G06F16/00; G06F16/40; G11B20/00; G11B20/10; G11B20/12; G11B20/1217; G11B20/1252; G11B20/1254; G11B27/102; G11B27/105; G11B27/19; G11B27/28; H04N5/9201; H04N5/9202; H04N5/9206; G11B20/10527; G11B2020/10537; G11B2020/10592; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/213; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/255; G11B2220/2558; G11B2220/60; G11B2220/65; Y; Y10; Y10S; Y10S707/00; Y10S707/99941; Y10S707/99944; Y10S707/99945
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
51 words
A data disc comprising main text data at least including map data for indicating a picture, item data for retrieving said main text data, display position data indicating a display position for said item data on a display screen, and address data for reading out said text data corresponding to items.
Claim 2
Dependent Claim
50 words
The data disc as claimed in claim 1 characterized in that said map data pointer information and said item data constitute a data control block and are recorded between a code indicating the start of said data control block and a code indicating the end of said data control block.
Claim 3
Dependent Claim
82 words
The data disc as claimed in claim 1 or 2 characterized in that said map data pointer information includes a map data pointer information start identifier indicating the start of said map data pointer information, data for map reproduction, data for indicating the map name of said map data, map data pointer end identifier indicating the end of said map data pointer information and address data indicating a leading address of said main text data in which said map data is recorded.
Claim 4
Dependent Claim
25 words
The data disc as claim in claim 1, 2 or 3 characterized in that said item data includes at least voice data pointer in formation.
Claim 5
Dependent Claim
78 words
The data disc as claimed in claim 4 characterized in that said voice data pointer information includes a voice data pointer information start identifier indicating the start of said voice data pointer information, position data indicating the display position of a selector for selecting the voice data pointer information, a voice data pointer information end identifier indicating the end of voice data and address data indicating the leading address of said main text data including said voice data.
Claim 6
Dependent Claim
29 words
The data disc as claimed in claim 5 characterized in that said voice data pointer information includes voice data name data outputted on selection of said voice data pointer.
Claim 7
Dependent Claim
27 words
The data disc as claimed in claim 5 or 6 characterized in that said address data includes a track number, a leading address and an end address.
Claim 8
Dependent Claim
25 words
The data disc as claimed in claim 4, 5, 6 or 7 characterized in that said item data further includes map menu data pointer information.
Claim 9
Dependent Claim
99 words
The data disc as claimed in claim 8 characterized in that said map menu data pointer information includes a map menu data pointer information start identifier indicating the start of map menu data pointer information, position data indicating the display position of a selector for selecting said map menu data pointer information, map menu data pointer information end identifier indicating the end of map menu data pointer information, and address data indicating a leading address of addresses for data group control blocks other than the data group control block in which said map menu data pointer information is stored.
Claim 10
Dependent Claim
34 words
The data disc as claimed in claim 9 characterized in that said map menu data pointer information further includes map menu data name data outputted on selection of said map menu data pointer information.
Claim 11
Dependent Claim
30 words
The data disc as claimed in any one of claims 4 to 10 characterized in that said item data further includes data pointer information for having reference to other items.
Claim 12
Dependent Claim
128 words
The data disc as claimed in claim 11 characterized in that said data pointer information for reference to other item includes data pointer start identifier for reference to other items indicating the start of data point information for having reference to other items, position data indicating a display position of a selector for selecting the data pointer information for having reference to other items, a data pointer information end identifier for reference to other items indicating the end of the data pointer information for having reference to other items, and address information indicating a leading address of said main text data in which display data displaying the name of reference sentences of data pointer information for having reference to other items and reference data of said other items.
Claim 13
Independent Claim
117 words
A method of data retrieval comprising reading map data from a data disc having recorded thereon main text data at least including map data for displaying a picture, map pointer information as a pointer information for said map data, item data for retrieving said main text data, display position data indicating the position of said item data on a display screen and address data for reading out main text data for items, displaying said item data in superimposition on said display screen at a position indicated by said display position data of read-out map data, and reading and outputting data corresponding to designated item data from said main text data on the basis of said address data.
Claim 14
Dependent Claim
31 words
The method of data retrieval as claimed in claim 13 characterized in that item names of said item data are displayed on said display screen based on said designated item data.
References Cited (Backward Citations)
No citation records indexed.
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