EP0150903A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for dynamic alignment
Assignee: CARROLL TOUCH TECHNOLOGY Inc
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Filing: 1985-01-04
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Granted: —
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Expires: 2005-01-04
Abstract
Abstract A control arrangement for a video monitor (10) has a photoresponsive device (22) for responding to the position of a test pattern (18) which makes up part of the image (12) being displayed. Signals developed from the photoresponsive device (22) are used to modify the presentation of the monitor (10). Apparatus for controlling the position of a visual image (12) on the screen of the monitor (10) comprises means (28, 36) for generating the rest pattern (18), a photoresponsive device (22) mounted in fixed position relative to the screen of the monitor (10) and responsive to the test pattern (18) for developing signals manifesting the position of the test pattern (18) relative to a predetermined fixed position, and means (48) for modifying the position of the test pattern (18) on the screen (10) in response to said signals.
Inventors
- 👤 Arthur B. Carroll
- 👤 Richard T. Borovec
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 01:11
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/041; G06F3/0416; G06F3/0418; G06F3/042
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
84 words
Apparatus for controlling the position of a visual image on the screen of a video monitor, comprising; means for generating a test pattern in fixed relation to said visual image, a photoresposive device mounted in fixed position relative to the screen of said monitor and responsive to said test pattern for developing signals manifesting the position of said test pattern relative to a predetermined fixed position, and means for modifying the position of said test pattern on said screen in response to said signals.
Claim 2
Dependent Claim
84 words
Apparatus for controlling the position of a visual image on the screen of a video monitor, comprising; means for generating a test pattern in fixed relation to said visual image, a photoresposive device mounted in fixed position relative to the screen of said monitor and responsive to said test pattern for developing signals manifesting the position of said test pattern relative to a predetermined fixed position, and means for modifying the position of said test pattern on said screen in response to said signals.
Claim 3
Dependent Claim
56 words
Apparatus according to claim 1 wherein said test pattern comprises a plurality of dots on a plurality of scanning lines of said monitor, and said apparatus for generating said test pattern comprises means for supplying a sequence of pulses to said video monitor at times corresponding to the positions of said dots on saidmon- itor screen.
Claim 4
Dependent Claim
45 words
Apparatus according to claim 2 wherein said photoresponsive device is adapted to produce a signal responsive to one of said pulses when said test pattern is correctly positioned, and in response to one or more others of said dots when said pattern is incorrectly positioned.
Claim 5
Dependent Claim
56 words
Apparatus according to claim 3 wherein said test pattern comprises a plurality of separated dots forming at least one row and at least one column, and said photoresponsive device is responsive to the presence of dots in an area defined by a vertical or horizontal dimension which is greater than the distance between two adjacent dots.
Claim 6
Dependent Claim
22 words
Apparatus according to claim 1, including means for mounting said photoresponsive device in fixed position relative to the screen of said monitor.
Claim 7
Dependent Claim
37 words
Apparatus according to claim 1, including a parameter store for storing parameters corresponding to the vertical and horizontal positions of said image area, and means for modifying said parameters in response to signals from said photoresponsive device.
Claim 8
Dependent Claim
38 words
Apparatus according to claim 6, including means for incrementing or decrementing one of said parameters in response to a signal from said photoresponsive device corresponding to a position of said image area different from said predetermined fixed position.
Claim 9
Independent Claim
80 words
A method of maintaining the image area of a video monitor in a predetermined fixed position, comprising the steps of; displaying a test pattern on the screen of said video monitor in fixed relation to said image area, inspecting the position of said test pattern relative to a fixed position on the screen of said monitor, and adjusting the position of said test pattern and image area together to bring said test pattern into alignment with said predetermined fixed position.
Claim 10
Independent Claim
80 words
A method of maintaining the image area of a video monitor in a predetermined fixed position, comprising the steps of; displaying a test pattern on the screen of said video monitor in fixed relation to said image area, inspecting the position of said test pattern relative to a fixed position on the screen of said monitor, and adjusting the position of said test pattern and image area together to bring said test pattern into alignment with said predetermined fixed position.
Claim 11
Dependent Claim
51 words
The method according to claim 8 including the step of generating said test pattern in the form of a plurality of spaced dots, employing a photoresponsive device for inspecting said test pattern, and moving the position of said image in accordance with the relationship between said dots and said photoresponsive device.
Claim 12
Dependent Claim
32 words
The method according to claim 9 including the step of forming said dots by supplying a plurality of pulses to said video monitor during the periods of a plurality of scan lines.
Claim 13
Dependent Claim
21 words
Apparatus according to claim 1, wherein said photoresponsive device comprises plural photodetectors spaced apart both horizontally and vertically on said screen.
Claim 14
Dependent Claim
48 words
Apparatus according to claim 1 wherein said test pattern is composed of plural parts, and including means for developing signals corresponding to alignment of one of said parts and misalignment of another of said parts, to identify a variation in size of the raster of said video monitor.
Claim 15
Dependent Claim
80 words
Apparatus for verifying placement of a visual image on the screen of a video monitor, comprising; a photoresponsive device mounted in fixed position relative to the screen of said monitor and responsive to light produced by said monitor, at a predetermined location thereof, and means for producing an output signal in response to energization of said photoresponsive device at a predetermined time, whereby said output signal verifies an operational characteristic of said monitor relative to the placement of said image.
Claim 16
Dependent Claim
80 words
Apparatus for verifying placement of a visual image on the screen of a video monitor, comprising; a photoresponsive device mounted in fixed position relative to the screen of said monitor and responsive to light produced by said monitor, at a predetermined location thereof, and means for producing an output signal in response to energization of said photoresponsive device at a predetermined time, whereby said output signal verifies an operational characteristic of said monitor relative to the placement of said image.
Claim 17
Dependent Claim
26 words
Apparatus according to claim 13, wherein said photoresponsive device is placed at the normal position of a predetermined scan line of the raster of said monitor.
Claim 18
Dependent Claim
20 words
Apparatus according to claim 14, including means for generating a test pattern on said monitor at said predetermined scan line.
Claim 19
Dependent Claim
44 words
Apparatus according to claim 13, including a pair of said photosensitive devices, said devices each being mounted at the normal positions of two different scan lines of the raster of said monitor, whereby the physical distance between said two scan lines can be verified.
Claim 20
Dependent Claim
37 words
Apparatus according to claim 13, including three photosensitive devices, each of said devices being mounted at the normal positions of three different scan lines of said monitor, whereby the vertical linearity of said raster can be verified.
Claim 21
Independent Claim
67 words
A method of verifying placement of a visual image on the screen of a video monitor, comprising the steps of; placing a photoresponsive device at a predetermined physical position adjacent the face of said monitor, and comparing the time of energization of said photoresponsive device with a predetermined time, whereby an operational characteristic of said monitor is verified, relative to the placement of said visual image thereon.
Claim 22
Independent Claim
67 words
A method of verifying placement of a visual image on the screen of a video monitor, comprising the steps of; placing a photoresponsive device at a predetermined physical position adjacent the face of said monitor, and comparing the time of energization of said photoresponsive device with a predetermined time, whereby an operational characteristic of said monitor is verified, relative to the placement of said visual image thereon.
Claim 23
Dependent Claim
30 words
The method according to claim 18, including the step of generating a test pattern on said monitor at the scan line normally corresponding to the position of said photoresponsive device.
Claim 24
Dependent Claim
37 words
The method according to claim 18, including the steps of placing two of said photoresponsive devices at the normal positions of two different scan lines of the raster of said monitor, whereby a height characteristic is verified.
Claim 25
Dependent Claim
38 words
The method according to claim 18, including the step of placing three of said photoresponsive devices at the normal positions of three different scan lines of the raster of said monitor, whereby a vertical linearity characteristic is verified.
Claim 26
Dependent Claim
99 words
Apparatus for correlating the position of a visual image on the screen of a video monitor having a touch input capability comprising, means for generating a test pattern in fixed relation to said visual image, touch input means for generating signals indicative of the position of said video monitor when its surface is touched, and means for storing data correlating a specific point of said test pattern with the position which is touched, whereby said correlation data may be used to compensate for variations in the positions of said test pattern caused by physical characteristics of said video monitor.
Claim 27
Dependent Claim
99 words
Apparatus for correlating the position of a visual image on the screen of a video monitor having a touch input capability comprising, means for generating a test pattern in fixed relation to said visual image, touch input means for generating signals indicative of the position of said video monitor when its surface is touched, and means for storing data correlating a specific point of said test pattern with the position which is touched, whereby said correlation data may be used to compensate for variations in the positions of said test pattern caused by physical characteristics of said video monitor.
Claim 28
Dependent Claim
22 words
Apparatus according to claim 22 wherein said test pattern incorporates at least two points spaced apart horizontally and vertically on said screen.
Claim 29
Dependent Claim
53 words
Apparatus according to claim 22 wherein said means for storing incorporates means responsive to signals from said touch input means for storing data corresponding to said signals and including means responsive to subsequent position data supplied by said touch input means for adjusting said subsequent position data in accordance with said stored data.
Claim 30
Independent Claim
95 words
A method of correlating the position of a visual image on the screen of a video monitor having a touch input capability comprising the steps of generating a test pattern in fixed relation to said visual image, devising data representative of particular positions of said test pattern, storing said data, and referring to said stored data each time subsequent position data is provided by the touch input capability of said monitor, and using said stored data to compensate for variations in the positions of said test patterns caused by physical characteristic of said video monitor.
Claim 31
Independent Claim
95 words
A method of correlating the position of a visual image on the screen of a video monitor having a touch input capability comprising the steps of generating a test pattern in fixed relation to said visual image, devising data representative of particular positions of said test pattern, storing said data, and referring to said stored data each time subsequent position data is provided by the touch input capability of said monitor, and using said stored data to compensate for variations in the positions of said test patterns caused by physical characteristic of said video monitor.
Claim 32
Dependent Claim
27 words
The method according to claim 25, including the step of storing data representative of two points of said test pattern which are spaced apart horizontally and vertically.
Claim 33
Dependent Claim
37 words
The method according to claim 25, including the step of using said stored data to adjust each item of subsequent position data for modifying such position data in accordance with the physical characteristics of said video monitor.
References Cited (Backward Citations)
No citation records indexed.
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