# US 11,442,602 B2 · Method for the manipulation of image data for a screen

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- Number: US 11,442,602 B2
- Document ID: US11442602B2
- Status: Granted
- Kind: B2
- Application number: 17/054,449
- Filed: 2019-05-28
- Published: 2021-07-29
- Granted: 2022-09-13
- Earliest claimed: 2018-05-31
- Assignees: siOPTICA GmbH
- Applicants: siOPTICA GmbH
- Inventors: André Heber; Markus Klippstein; Uwe Schroeter
- Web page: https://patentgrep.com/patent/US11442602B2

## CPC

- G06F 3/0484: for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- B60K 35/22: Display screens
- G06F 3/012: {Head tracking input arrangements}
- G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)}
- B60K 35/10: Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
- B60K 35/29: Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
- B60K 2360/149: Instrument input by detecting viewing direction not otherwise provided for
- B60K 2360/186: Displaying information according to relevancy
- B60K 2360/188: Displaying information using colour changes
- B60K 2360/349: Adjustment of brightness
- G09G 2320/0626: for control of overall brightness
- G09G 2320/066: for control of contrast
- G09G 2320/0666: for control of colour parameters, e.g. colour temperature
- G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G 2340/12: Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
- G09G 2354/00: Aspects of interface with display user
- G09G 2358/00: Arrangements for display data security
- G09G 2380/10: Automotive applications
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

## Abstract

A method for manipulation of image data for a display screen that can be operated in two operating modes, viz B1 for a free viewing mode and B2 for a restricted viewing mode, comprising: a) switching on the operating mode B2, b) monitoring the eye position of a viewer in a given angular range A, with a signal S being set if the eye position signifies that the viewer is looking at the screen, and being deleted if not looking at the screen, c) manipulating the image data with regard to image parameters, wherein the said manipulation i) is performed to the effect that the quality of the restricted viewing mode B2 is enhanced, ii) is dynamically implemented in a control unit of the display screen, and iii) is performed exclusively while the signal S remains set, and d) repeating steps b) and c) until operating mode B2 concluded.

## Claims

### Claim 1

A method for the manipulation of image data for a display screen that can be operated in at least two modes of operation, viz B1 for a free viewing mode, in which light is emitted by the display in an unrestricted angular range, and B2 for a restricted viewing mode, in which light is emitted by the display in a restricted angular range, comprising the following steps:
a) switching on the operating mode B2,
b) monitoring an eye position of a viewer in a given angular range A enclosing a vertical bisector of the display screen, and
setting a signal S when the eye position of the viewer signifies that the viewer is looking at the display screen, and
deleting the signal S, when the eye position of the viewer signifies that the viewer is not looking at the display screen,
c) manipulating the image data on the display screen as against an initial image data with regard to contrast, brightness, resolution, color space, cross fades and/or further image parameters, wherein the manipulation:
i. is performed to an effect that a deteriorated visual perceptibility of the image data is brought about, whereby a quality of the restricted viewing mode B2 is enhanced,
ii. is implemented dynamically in a control unit of the display screen, and
iii. is performed exclusively during a period in which the signal S is set,
d) repeating steps b) and c) until an abort condition is reached.

### Claim 2 (depends on 1)

The method as claimed in claim 1, wherein the deteriorated visual perceptibility of the image data is brought about by, as against the initial image data, reduced contrast, diminished brightness, diminished resolution, diminished color space and/or static or dynamic cross fades.

### Claim 3 (depends on 1)

The method as claimed in claim 1, wherein the deteriorated perceptibility of the image data is modulated temporally.

### Claim 4 (depends on 3)

The method as claimed in claim 3, wherein the deterioration of perceptibility of the image increases with the period in which the signal S remains set, with the display screen being completely switched off when a presettable maximum time t during which the signal S remains set is exceeded.

### Claim 5 (depends on 1)

The method as claimed in claim 1, wherein die monitoring of the eye position is implemented by an eyetracking system.

### Claim 6 (depends on 1)

The method as claimed in claim 1, wherein the monitoring of the eye position takes into account a viewing angle of both eyes in the horizontal and/or vertical direction and the head position relative to the display screen.

### Claim 7 (depends on 1)

The method as claimed in claim 1, wherein the eye position is monitored only for viewers located horizontally within the angular range A between 90 degrees and greater than 20 degrees from the vertical bisector of the display area of the display screen and/or at a maximum distance of 1.2 m from a center point of the display area of the display screen.

### Claim 8 (depends on 1)

The method as claimed in claim 1, wherein, during the period in which the signal S is set, a text message and/or a symbol is cross-faded.

### Claim 9 (depends on 1)

The method of claim 1, wherein steps a, b, c and d are performed inside a vehicle, and the viewer is a driver of the vehicle.

### Claim 10 (depends on 1)

The method as claimed in claim 1, wherein the eye position is monitored only for viewers located horizontally within the angular range A between 90 degrees and greater than 25 degrees from the vertical bisector of the display area of the display screen and/or at a maximum distance of 1.2 m from a center point of the display area of the display screen.

### Claim 11 (depends on 1)

The method as claimed in claim 1, wherein the eye position is monitored only for viewers located horizontally within the angular range A between 90 degrees and greater than 30 degrees from the vertical bisector of the display area of the display screen and/or at a maximum distance of 1.2 m from a center point of the display area of the display screen.