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Screen synthesising device and screen synthesising method

A technology for synthesizing devices and screens, applied to equipment, TVs, color TV parts, etc., can solve the problems of not considering the processing burden and not being able to obtain sufficient power saving effects, etc.

Inactive Publication Date: 2013-03-06
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the above-mentioned prior art, there is a problem that the processing load (for example, the above-mentioned processing cost) in the pre-synthesis of the foreground image and the background image is not considered.
Therefore, in the above-mentioned conventional technology, there may be cases where a sufficient power saving effect cannot be obtained.

Method used

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  • Screen synthesising device and screen synthesising method
  • Screen synthesising device and screen synthesising method
  • Screen synthesising device and screen synthesising method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0057] figure 1 A block diagram showing the configuration of the screen synthesis device 100 according to the present embodiment is shown.

[0058] exist figure 1 In the shown screen composition device 100 , an application group 101 indicates a group of applications that use the screen composition device 100 . For example, the application group 101 is composed of a collection of applications such as application 1, application 2, . . . , application N, and the like.

[0059] The object information buffer 102 stores object information representing actual data such as image data and text drawn by each application of the application group 101 . The target information represents the target information of each display layer, that is, the display content of the display layer actually displayed in the defined display layout.

[0060] For example, figure 2 Represents each display layer included in the display layout. in addition, image 3 express figure 2 Target information fo...

Embodiment approach 2

[0107] Figure 8 It is a block diagram showing the configuration of the screen synthesizing device 200 of this embodiment. In addition, in Figure 8 In the same way as in Embodiment 1 ( figure 1 ) use the same symbols for the same constituent elements and omit descriptions.

[0108] exist Figure 8 In the shown screen compositing device 200 , compositing destination allocation determining section 201 selects compositing destinations of drawing content (display layer) of each application in application group 101 similarly to compositing destination allocation determining section 105 in Embodiment 1. For example, Figure 8 Composition destination allocation determination section 201 shown selects either one of upper layer frame composition buffer 107 and lower layer frame composition buffer 109 as the composition destination of the display layer. At this time, compositing destination allocation determining section 201 further determines whether or not to divide the display ...

Embodiment approach 3

[0129] Figure 13 It is a block diagram showing the structure of the screen synthesizing device 300 of this embodiment. In addition, in Figure 13 In the same way as in Embodiment 2 ( Figure 8 ) use the same reference numerals for the same constituent elements and omit descriptions.

[0130] exist Figure 13 In the shown screen compositing device 300 , the divisible object type DB 301 stores information for judging whether or not to divide the layout of the display layer in the compositing destination allocation determination process of the compositing destination allocation determining section 302 . Here, the divisible object type DB 301 stores information indicating an object type (that is, an attribute of the display content of the display layer) that can be divided into the layout of the display layer in the compositing destination determination process. For example, Figure 14 An example of information indicating object types that can be divided into the layout of t...

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PUM

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Abstract

Disclosed is a screen synthesising device which can achieve greater power saving effects when synthesising a plurality of display screens containing moving images, without affecting the display result. In the disclosed device, an upper-layer frame synthesis unit (106) synthesises inputted display layers into a first frame, a lower-layer frame synthesis unit (108) synthesises inputted display layers into a second frame, a display screen synthesis output processing unit (112) synthesises the first frame and the second frame and generates a display screen, a synthesis destination allocation determination unit (105) has a plurality of display layers as an input, said layers including a first display layer having the first frame as a synthesis destination candidate and a second display layer having the second frame as a synthesis destination candidate, and determines to synthesise the display layer which is the object of determination among the plurality of display layers, in either the first frame or the second frame on the basis of layout information which shows the positional relationship between the display layer which is the object of determination and a determination reference region which corresponds to the display layer which is the object of determination, and on the basis of the synthesis processing costs of the first frame and the second frame.

Description

technical field [0001] The present invention relates to a screen synthesis device and a screen synthesis method for synthesizing a plurality of display screens including moving images. Background technique [0002] In recent years, the functions of mobile terminal devices have been continuously improved, such as high-quality video playback, large-screen display, and multi-application support. With the increase in functionality of mobile terminal devices, it is important how to combine and display pictures in a plurality of applications with power saving. [0003] As a conventional technique for synthesizing a plurality of display screens (display layers) including moving images, that is, screen synthesis, for example, the technique disclosed in Patent Document 1 is known. In the technique of Patent Document 1, a video frame, a background frame, and a foreground frame are generated separately. Furthermore, in the technique of Patent Document 1, a screen image is generated b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/265
CPCH04N5/265G09G5/377H04N5/2624
Inventor 冈敏夫
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA