EP0193996A2
Expired / Lapsed
EP
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Electronic information display systems
Assignee: Koninklijke Philips NV
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Filing: 1986-03-03
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Granted: —
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Expires: 2006-03-03
Abstract
Abstract An electronic information display system which is organised as a reference information display system. The system comprises a reference source in the form of a compact disc CD ROM, which constitutes a mass read-only memory for the system. The disc contains text, graphics and/or sound data portions for a plurality of items of information. The disc also contains a list of these items together with addresses for their respective data portions. The system is processor-controlled such that the list and addresses are read from the disc into a programme memory. Using scrolling and/or selection techniques, the list can then be displayed a part at a time until a required item is found. Selection of this item will result in its data portions being transferred from the CD ROM to the programme memory where they can be accessed for use (i.e. visual or audible).
Inventors
- 👤 Bernard Joseph Coughlin
- 👤 David Edward Penna
- 👤 Simon Royce Turner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; G; G06; G06F; G06F16/00; G06F16/90; G06F16/901; G06F16/9017; G11; G11B; G11B19/00; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/11; G11B27/19; G11B27/28; G11B27/32; G11B27/327; G11B27/329; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/213; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/60; G11B2220/65
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
354 words
An electronic information display system comprising, a mass read only memory which constitutes an information source from which information can be selected for display, a programme memory for storing programme and other control information, a display memory for storing in digital form a page of information selected from the mass memory for display as an entity on a display screen, a display device having said display screen, a display generator for producing video signals in accordance with the page information stored in the display memory for driving the display device, and processor means and associated user interface devices for controlling the selection and display of discrete pages of information from the mass memory, in which system said mass memory contains a list of items of information and a set of data for each item on the list, each item having associated with it an address code for addressing the appertaining set of data and each set of data comprising further information for its appertaining item, said processor means being operable:- (a) under control of an initialisation signal generated by a user interface device to read the whole list of items and the appertaining address codes from the mass memory and store them in the programme memory; (b) under control of a first select signal generated by the user interface device and indicating a region of the list of items, to read from the programme memory and store in the display memory a fixed number of items from said region of the list, starting from a first item identified by said first select signal; (c) under control of at least one further select signal generated by the user interface device, to select one of the displayed items; and the processor means being thereafter responsive: (i) to fetch from the programme memory the address code appertaining to the selected item; (ii) to address the mass memory with the fetched address code for reading therefrom the associated set of data and storing said set of data in the programme memory; and (iii) to cause the transfer of data from said set into the display memory for display.
Claim 2
Dependent Claim
354 words
An electronic information display system comprising, a mass read only memory which constitutes an information source from which information can be selected for display, a programme memory for storing programme and other control information, a display memory for storing in digital form a page of information selected from the mass memory for display as an entity on a display screen, a display device having said display screen, a display generator for producing video signals in accordance with the page information stored in the display memory for driving the display device, and processor means and associated user interface devices for controlling the selection and display of discrete pages of information from the mass memory, in which system said mass memory contains a list of items of information and a set of data for each item on the list, each item having associated with it an address code for addressing the appertaining set of data and each set of data comprising further information for its appertaining item, said processor means being operable:- (a) under control of an initialisation signal generated by a user interface device to read the whole list of items and the appertaining address codes from the mass memory and store them in the programme memory; (b) under control of a first select signal generated by the user interface device and indicating a region of the list of items, to read from the programme memory and store in the display memory a fixed number of items from said region of the list, starting from a first item identified by said first select signal; (c) under control of at least one further select signal generated by the user interface device, to select one of the displayed items; and the processor means being thereafter responsive: (i) to fetch from the programme memory the address code appertaining to the selected item; (ii) to address the mass memory with the fetched address code for reading therefrom the associated set of data and storing said set of data in the programme memory; and (iii) to cause the transfer of data from said set into the display memory for display.
Claim 3
Dependent Claim
77 words
An electronic information display system as claimed in Claim 1, characterised in that the display generator is arranged for displaying a "select box" and means are provided for causing items of the displayed list to be displayed individually within this "select box", and in that the user interface device comprises switch means to be activated by the user to produce said further (or final further) select signal in respect of the item displayed in the "select box".
Claim 4
Dependent Claim
105 words
An electronic information display system as claimed in Claim 1 or Claim 2, characterised in that the set of data for some items pertains to more than one display page and in that each such display page includes at least one "select area" which pertains to an alternative page, the display including a cursor which is movable under the control of the user interface device and which when positioned in a "select area" signifies an operating condition in which activation of switch means on the interface device will produce a command signal-for causing the processor means to effect the display of the alternative display page.
Claim 5
Dependent Claim
23 words
An electronic information display system as claimed in any preceding Claim, characterised in that said mass memory is physically separable from the system.
Claim 6
Dependent Claim
29 words
An electronic information display system as claimed in any preceding Claim, characterised in that said mass memory comprises an optical record carrier in combination with a suitable read apparatus.
References Cited (Backward Citations)
No citation records indexed.
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