Display device
First Claim
1. A display device comprising:
- a picture screen;
display means for imaging a main picture and at least one auxiliary picture on the picture screen such that picture properties of the main picture and of the auxiliary picture are determined by respective controllable picture parameters; and
control means for controlling the controllable picture parameter of the main picture;
characterized in that the display device in addition comprises;
a memory for storing a current parameter value of the controllable picture parameter of the main picture; and
generating means for generating the auxiliary picture, the auxiliary picture having a picture content substantially the same as at least part of the main picture, a parameter value of the controllable picture parameter of the auxiliary picture being identical to the current parameter value of the controllable picture parameter of the main picture stored in the memory;
wherein the control means causes the display means to image the auxiliary picture on the picture screen, and wherein the control means further comprises;
means for varying the parameter value of the controllable picture parameter of the auxiliary picture; and
copying means for selectively changing the parameter value of the controllable picture parameter of the main picture from the current parameter value to a new parameter value equal to the parameter value of the controllable picture parameter of the auxiliary picture when a given, predetermined operational action is carried out.
2 Assignments
0 Petitions
Accused Products
Abstract
In a display device equipped with a picture-in-picture function, during controlling of the picture parameters of the main picture, one or several auxiliary pictures are presented on the screen, each having a certain combination of parameter settings. These may be preprogrammed, defined by a user, or automatically determined. The display device is provided with circuitry for transferring the parameter settings of one of the auxiliary pictures to the main picture. In a special embodiment, an auxiliary picture represents the parameter settings at the start of the picture parameter adjustment process. As a result, the old parameter settings may be compared with the new ones and, if so desired, may be reinstated in a simple manner.
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Citations
10 Claims
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1. A display device comprising:
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a picture screen; display means for imaging a main picture and at least one auxiliary picture on the picture screen such that picture properties of the main picture and of the auxiliary picture are determined by respective controllable picture parameters; and control means for controlling the controllable picture parameter of the main picture;
characterized in that the display device in addition comprises;a memory for storing a current parameter value of the controllable picture parameter of the main picture; and generating means for generating the auxiliary picture, the auxiliary picture having a picture content substantially the same as at least part of the main picture, a parameter value of the controllable picture parameter of the auxiliary picture being identical to the current parameter value of the controllable picture parameter of the main picture stored in the memory;
wherein the control means causes the display means to image the auxiliary picture on the picture screen, and wherein the control means further comprises;means for varying the parameter value of the controllable picture parameter of the auxiliary picture; and copying means for selectively changing the parameter value of the controllable picture parameter of the main picture from the current parameter value to a new parameter value equal to the parameter value of the controllable picture parameter of the auxiliary picture when a given, predetermined operational action is carried out. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of controlling a picture parameter of a main picture, characterized in that the method comprises the steps:
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storing a current value of the picture parameter of the main picture in a memory; displaying an auxiliary picture which has substantially the same picture content as at least part of the main picture, a parameter value of a picture parameter of the auxiliary picture corresponding to the current value of the picture parameter of the main Picture stored in the memory; varying the parameter value of the picture parameter of the auxiliary picture; and selectively changing the parameter value of the picture parameter of the main picture from the current parameter value to a new parameter value equal to the varied parameter value of the picture parameter of the auxiliary picture when a predetermined operational action is carried out. - View Dependent Claims (9, 10)
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Specification