EP0379336A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Display device and display system incorporating such a device
Assignee: Hitachi Ltd
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Filing: 1990-01-16
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Granted: —
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Expires: 2010-01-16
Abstract
Abstract A display device (5) has a touch pad (1) and a display (3) lamintated together to form a screen. That screen is connected to a controller (4) which processes signals generated by physical contact with the touch pad (1) and activates the display (3) to display e.g. characters input by a stylus (2) to the touch pad (1). The display device (5) is connected to an external device (e.g. a computer) (6) and video signals from the external device (6) are received via a video input (52) and may be displayed on the display (3). Also the controller (4) can transmit to the external device (6) via an output (51). Thus, the display can (3) display simultaneously informaion from the external device (6) and information input to the touch pad (1). If the controller (4) is arranged to carry out character recognition, the display device (5) may then act as a hand-writing input device, with the hand-written information being incorporated with information in the external device (6) and displayed.
Inventors
- 👤 Soshiro Kuzunuki
- 👤 Fukunaga
- 👤 Hiroshi Shojima
- 👤 Masaki Miura
- 👤 Toshimi Yokota
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 12:28
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/14; G06F3/01; G06F3/048; G06F3/0487; G06F3/0488; G06F3/04883; G06F3/0481; G06F2203/00; G06F2203/048; G06F2203/04804
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
96 words
A display device (5) comprising a screen having a display part (3) and an input part (1) for receiving an input, the display part (3) and the input part (1) being integrated together; and a controller (41,42,43,44,45,46,51,53) arranged to receive the input from the input part and generate an output to the display part, the controller also having means (43,51) for transmitting the output to an external device (6); characterised in that: the display device (5) has video input means (47,48,52) for receiving a video input and transmitting that video input to the screen for display.
Claim 2
Dependent Claim
96 words
A display device (5) comprising a screen having a display part (3) and an input part (1) for receiving an input, the display part (3) and the input part (1) being integrated together; and a controller (41,42,43,44,45,46,51,53) arranged to receive the input from the input part and generate an output to the display part, the controller also having means (43,51) for transmitting the output to an external device (6); characterised in that: the display device (5) has video input means (47,48,52) for receiving a video input and transmitting that video input to the screen for display.
Claim 3
Dependent Claim
33 words
A display device according to claim 1, wherein the screen in arranged to display the video input and the output of the controller (41,42,43,44,45,46,51,53) simultaneously on the display part (3) of the screen.
Claim 4
Dependent Claim
35 words
A display device according to claim 1 or claim 2, wherein the video input means includes synthesis means (47) for combining the video input and the output of the controller (41,42,43,44,45,46,47,51,53) prior to display thereof.
Claim 5
Dependent Claim
19 words
A display device according to claim 3, wherein the synthesis means (47) is formed on a single semiconductor chip.
Claim 6
Dependent Claim
36 words
A display device according to any one of the preceding claims, wherein the video input means includes a memory (48) for storing the video input and the output of the controller (41,42,43,44,45,46,51,53) prior to display thereof.
Claim 7
Dependent Claim
117 words
A display device (5) comprising a screen (1,3) with an input part (1) for receiving an input, and a controller (41,42,43,44,45,46,51,53) for generating an output, the controller being arranged to receive the input from the input part (1); characterised in that: the display device (5) has a video input terminal (52) for receiving a video signal, a memory (48) for storing the video input and the output of the controller (41,42,43,44,45,46,51,53), and a synthesis means (47) for combining the video input and the output of the controller (41,42,43,44,45,46,51,53) stored in the memory (48), the synthesis means being arranged to generate a composite display of the video input and the output of the controller (41,42,43,44,45,46,51,53) on the screen.
Claim 8
Dependent Claim
117 words
A display device (5) comprising a screen (1,3) with an input part (1) for receiving an input, and a controller (41,42,43,44,45,46,51,53) for generating an output, the controller being arranged to receive the input from the input part (1); characterised in that: the display device (5) has a video input terminal (52) for receiving a video signal, a memory (48) for storing the video input and the output of the controller (41,42,43,44,45,46,51,53), and a synthesis means (47) for combining the video input and the output of the controller (41,42,43,44,45,46,51,53) stored in the memory (48), the synthesis means being arranged to generate a composite display of the video input and the output of the controller (41,42,43,44,45,46,51,53) on the screen.
Claim 9
Dependent Claim
38 words
A display device according to any one of the preceding claims wherein the controller (41,42,43,44,45,46,51,53) is arranged to modify the display of the video output on the screen in dependence on the input to the input part (1).
Claim 10
Dependent Claim
50 words
A display device (5) comprising a display (3) and input part (1) associated with the display (3) for detecting an input associated with at least one part of the display, and means for generating a window, the display (3) being arranged to display the window on the one part thereof;
Claim 11
Dependent Claim
50 words
A display device (5) comprising a display (3) and input part (1) associated with the display (3) for detecting an input associated with at least one part of the display, and means for generating a window, the display (3) being arranged to display the window on the one part thereof;
Claim 12
Dependent Claim
45 words
A display device according to claim 7, wherein the input part (1) is also arranged to detect a further input associated with the further part of the display (3), and the means (4) is arranged to modify that display in dependence on the further input.
Claim 13
Dependent Claim
36 words
A display device according to any one of the preceding claim wherein the input part (1) is a touch pad and the input is an electronic signal corresponding to a physical contact with the touch pad.
Claim 14
Dependent Claim
28 words
A display device according to any one of the preceding claims having a removable memory device (50) for storing at least the input to the input part (1).
Claim 15
Dependent Claim
21 words
A display device according to claim 10 wherein the removable memory device (50) is also arranged to store the video input.
Claim 16
Dependent Claim
43 words
A display device according to any one of the preceding claims having a further input part (KB/MS) for receiving a further input, and means (55) for switching connection of the controller (41,42,43,44,45,46,51,53) between the input part (1) and the further input part (KB/MS).
Claim 17
Dependent Claim
53 words
A display device according to any one of the preceding claims wherein said input to the input part (1) corresponds to a character, the controller (41,42,43,44,445,46,51,53) is arranged to recognise the character, and the output generated by the controller (41,42,43,44,45,46,51,53) is such as to generate a display of the character on the screen,
Claim 18
Dependent Claim
94 words
A display device (5) comprising a screen (2,3) and a controller (41,42,43,44,45,46,51,53) for generating an output; characterised in that: the device (5) has a video input terminal (52) for receiving a video signal, a memory (48) for storing the video input and the output of the controller (41,42,43,44,45,46,51,,53), and a synthesis means (47) for combining the video input and the output of the controller (41,42,43,44,45,46,51,53) stored in the memory (48) the synthesis means being arranged to generate a composite display of the video input and the output of the controller (41,42,43,44,45,46,51,53) on the screen.
Claim 19
Dependent Claim
94 words
A display device (5) comprising a screen (2,3) and a controller (41,42,43,44,45,46,51,53) for generating an output; characterised in that: the device (5) has a video input terminal (52) for receiving a video signal, a memory (48) for storing the video input and the output of the controller (41,42,43,44,45,46,51,,53), and a synthesis means (47) for combining the video input and the output of the controller (41,42,43,44,45,46,51,53) stored in the memory (48) the synthesis means being arranged to generate a composite display of the video input and the output of the controller (41,42,43,44,45,46,51,53) on the screen.
Claim 20
Dependent Claim
31 words
A display device according to claim 14, wherein said synthesis device is arranged to vary the arrangement of said video input and said output of said controller in said composite display.
Claim 21
Dependent Claim
36 words
A display system comprising an external computer (6) and a display device according to any one of the preceding claims, wherein the video output of the external computer forms the video input of the display device.
Claim 22
Dependent Claim
53 words
A display system comprising: a host computer arranged to generate a video output; a first screen for displaying said video output; means for generating a further video output; means for combining said video output and said further video output, thereby to form a composite display; and a second screen displaying said composite display.
Claim 23
Dependent Claim
53 words
A display system comprising: a host computer arranged to generate a video output; a first screen for displaying said video output; means for generating a further video output; means for combining said video output and said further video output, thereby to form a composite display; and a second screen displaying said composite display.
Claim 24
Dependent Claim
20 words
A display system according to claim 17, wherein said first screen is generated by a projector receiving said video output.
Claim 25
Dependent Claim
36 words
A display system comprising a pair of display devices according to any one of claims 1 to 14, wherein the output of the controller of each display forms the video input for the other device respectively.
Claim 26
Dependent Claim
70 words
A hand-writing input/output device for displaying hand- written information, comprising: a touch pad for inputting hand-written information; means for analysing and recognising said hand-written information and generating an output in dependence on said hand-written information; a screen for displaying said output; and a video input for receiving a video input from an external device, processing said video input and tramnsmitting the processed video input to said screen for display thereby.
Claim 27
Dependent Claim
70 words
A hand-writing input/output device for displaying hand- written information, comprising: a touch pad for inputting hand-written information; means for analysing and recognising said hand-written information and generating an output in dependence on said hand-written information; a screen for displaying said output; and a video input for receiving a video input from an external device, processing said video input and tramnsmitting the processed video input to said screen for display thereby.
Claim 28
Dependent Claim
28 words
A hand-writing input/output device according to claim 20, wherein said means for analysing and recognising said hand-written information is arranged to transmit said output to said external device.
Claim 29
Dependent Claim
48 words
The combination of a hand writing input/output device according to claim 21 or 22 and an external device, wherein the external device is at least one of a work station, a personal computer, a word processor, a communications conference terminal device, a television set and an image processor.
References Cited (Backward Citations)
No citation records indexed.
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