WO2009133513A1 - A display device - Google Patents

A display device Download PDF

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Publication number
WO2009133513A1
WO2009133513A1 PCT/IB2009/051710 IB2009051710W WO2009133513A1 WO 2009133513 A1 WO2009133513 A1 WO 2009133513A1 IB 2009051710 W IB2009051710 W IB 2009051710W WO 2009133513 A1 WO2009133513 A1 WO 2009133513A1
Authority
WO
WIPO (PCT)
Prior art keywords
processing unit
video
image
signal processing
main
Prior art date
Application number
PCT/IB2009/051710
Other languages
French (fr)
Inventor
Bumin Kaan Aydin
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2009133513A1 publication Critical patent/WO2009133513A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet

Definitions

  • the present invention relates to a display device comprising a video decoder/sealer integrated circuit having a plurality of video processing units.
  • the second video processing unit is used only when the double picture (PIP/PAP) mode is active, and when this mode is not used only the main video processing unit is utilized.
  • the objective of the present invention is to realize a display device whose video decoder/sealer integrated circuit is used efficiently.
  • Another objective of the invention is to realize a display device whose second video processing unit is used efficiently.
  • the display device realized to fulfill the objective of the present invention and defined in Claim 1 and its dependent claims, comprises a plurality of video processing units for displaying a plurality of images simultaneously.
  • this image is improved by using a second video processing unit together with the main video processing unit.
  • the main video signals are filtered and delivered to the second video processing unit and by using the feedbacks obtained from this unit, the main video processing unit can perform image improvement more efficiently. This way, contrary to the applications in the state of the art, the second video processing unit does not remain nonfunctional when a single image is being watched.
  • Figure 1 is the schematic view of the inventive display device when the picture in picture (PIP) application is active.
  • Figure 2 is the schematic view of the inventive display device when the picture in picture (PIP) application is not active.
  • the inventive display device (1) comprises a video decoder/sealer integrated circuit
  • the controller (6) provided in the integrated circuit (2) is connected to the main video processing unit (4) and the second video processing unit (5) where the video signals are processed simultaneously, and can communicate with the signal processing units (4, 5).
  • the video signals that produce the main image (A) are processed in the main video processing unit (4) and the video signals that produce the second image (B) are processed in the second video processing unit (5).
  • the controller (6) controls the video processing by receiving feedbacks related to the video signals from both of the video processing units (4, 5) during video processing, and enables to obtain a better image.
  • the second signal processing unit (5) is used to improve the video signals of the main image (A) when the picture in picture (PIP) or picture and picture (PAP) modes is not active.
  • the filter (3) is used in cases where the PIP/PAP mode is not active, that is, where only the main image (A) is displayed to the user.
  • the video signal entering the main signal processing unit (4) is passed through the filter (3) whereby the video signal entering the second signal processing unit (5) is obtained.
  • This way it enables changing of at least one image characteristic (contrast, color, brightness, etc.) of the video signal entering the main signal processing unit (4) and allowing it to also enter into the second signal processing unit (5) concurrently ( Figure 2). Due to the fact that the video signal entering the second signal processing unit (5) is modified by being passed through the filter (3), the feedbacks that the controller (6) receives from the second signal processing unit (5) are different from the feedbacks it receives from the main signal processing unit (4).
  • the main signal processing unit (4) where the signals forming the main image (A) are processed is controlled by the controller (6) upon receiving different feedbacks from both of the units. Therefore, for improving the video signals of the main image (A), not only the main signal processing unit (4) but also the second signal processing unit (5) is utilized.
  • the inventive display device uses the

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Studio Devices (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The present invention relates to a display device (1), wherein a plurality of video images can be processed simultaneously and displayed to the user, and both of the signal processing units (4, 5) are used simultaneously when a single image is to be displayed, by means of the video decoder/scaler integrated circuit (2) having a plurality of video processing units.

Description

Description Title of Invention: A DISPLAY DEVICE
[ 1 ] Field of the Invention
[2] The present invention relates to a display device comprising a video decoder/sealer integrated circuit having a plurality of video processing units.
[3] Prior Art
[4] There are applications in the pictorial communication technology of the present time, which allow watching a plurality of images simultaneously. In the said applications, the images are displayed to the user simultaneously as Picture in Picture (PIP) or Picture and Picture (PAP). This way, for example in a television receiver, two channels can be watched at the same time. This application is performed by having the video images displayed on the screen after being processed separately in two parallel video processing units of the video decoder/sealer integrated circuits of the display devices. To this end, PIP/PAP mode is activated in the said device and the video processing units are enabled to operate together.
[5] The United States patent document US5675692, an application within the state of the art, discloses a double picture generation apparatus used in a video recording device. Images processed separately in two parallel video processing units enable the two images to be watched concurrently. The user can make a preference among options of single or double pictures.
[6] The United States patent document US2006221249, an application within the state of the art, discloses a system for reducing the noise on the video signals and improving the video image quality. According to the inventive system, the input signal is separated into two channels by using a filter. The video signals are processed separately in both of the channels and then they are united to obtain the final video signal.
[7] In PIP/PAP applications within the state of the art, the second video processing unit is used only when the double picture (PIP/PAP) mode is active, and when this mode is not used only the main video processing unit is utilized.
[8] Summary of the Invention
[9] The objective of the present invention is to realize a display device whose video decoder/sealer integrated circuit is used efficiently.
[10] Another objective of the invention is to realize a display device whose second video processing unit is used efficiently.
[11] The display device realized to fulfill the objective of the present invention and defined in Claim 1 and its dependent claims, comprises a plurality of video processing units for displaying a plurality of images simultaneously. In cases where only a single image is processed and displayed, this image is improved by using a second video processing unit together with the main video processing unit. For this purpose, when the second image is not active, the main video signals are filtered and delivered to the second video processing unit and by using the feedbacks obtained from this unit, the main video processing unit can perform image improvement more efficiently. This way, contrary to the applications in the state of the art, the second video processing unit does not remain nonfunctional when a single image is being watched.
[12] Detailed Description of the Invention
[13] The display device realized to fulfill the objective of the present invention is illustrated in the accompanying figures wherein,
[14] Figure 1 is the schematic view of the inventive display device when the picture in picture (PIP) application is active.
[15] Figure 2 is the schematic view of the inventive display device when the picture in picture (PIP) application is not active.
[16] The components shown in the figures are numbered individually, where the numbers refer to the following:
[17] 1. Display device
[18] 2. Integrated circuit
[19] 3. Filter
[20] 4. Main signal processing unit
[21] 5. Second signal processing unit
[22] 6. Controller
[23] The inventive display device (1) comprises a video decoder/sealer integrated circuit
(2) having a main video processing unit (4) where the video signals of the main image (A) are processed, a second video processing unit (5) where the video signals of the second image (B) are processed, and a controller (6) which controls the video processing procedures; and a filter (3).
[24] The controller (6) provided in the integrated circuit (2) is connected to the main video processing unit (4) and the second video processing unit (5) where the video signals are processed simultaneously, and can communicate with the signal processing units (4, 5). In cases where the PIP/PAP mode is active and two different images are displayed to the user (Figure 1), the video signals that produce the main image (A) are processed in the main video processing unit (4) and the video signals that produce the second image (B) are processed in the second video processing unit (5). The controller (6) controls the video processing by receiving feedbacks related to the video signals from both of the video processing units (4, 5) during video processing, and enables to obtain a better image.
[25] The second signal processing unit (5) is used to improve the video signals of the main image (A) when the picture in picture (PIP) or picture and picture (PAP) modes is not active.
[26] The filter (3) is used in cases where the PIP/PAP mode is not active, that is, where only the main image (A) is displayed to the user. The video signal entering the main signal processing unit (4) is passed through the filter (3) whereby the video signal entering the second signal processing unit (5) is obtained. This way, it enables changing of at least one image characteristic (contrast, color, brightness, etc.) of the video signal entering the main signal processing unit (4) and allowing it to also enter into the second signal processing unit (5) concurrently (Figure 2). Due to the fact that the video signal entering the second signal processing unit (5) is modified by being passed through the filter (3), the feedbacks that the controller (6) receives from the second signal processing unit (5) are different from the feedbacks it receives from the main signal processing unit (4). Thus, the main signal processing unit (4) where the signals forming the main image (A) are processed is controlled by the controller (6) upon receiving different feedbacks from both of the units. Therefore, for improving the video signals of the main image (A), not only the main signal processing unit (4) but also the second signal processing unit (5) is utilized.
[27] For example, in the case that the average brightness level in the pixels is used as the movement ratio information belonging to an image being processed, while the movement of the bright objects in the image can be detected, movement of the dark background might not be detected. However when the contrast of the same video signal is increased when being passed through the filter (3) before being input to the second signal processing unit (5), the movement information can be detected in the second signal processing unit (5) despite the dark background in the image. Thus, certain image feedbacks (movement information in the given example) which are impossible to obtain when the main signal processing unit (4) is used alone, can be obtained by the use of the second signal processing unit (5).
[28] The inventive display device uses the

Claims

Claims
[Claim 1] A display device (1) wherein at least two images, one of which is a main image (A) and the other is second image (B), can be watched simultaneously; the said device (1) comprising an integrated circuit (2), having a main video processing unit (4) where the video signals of the main image (A) are processed, a second video processing unit (5) where the video signals of the second image (B) are processed, and a controller (6) which controls the video processing procedures; and a filter (3); characterized by a second signal processing unit (5) which is used to improve the video signals of the main image (A) when the picture in picture (PIP) or picture and picture (PAP) mode is not active.
[Claim 2] A display device (1) according to Claim 1, characterized in that the feedbacks, which are received from the second signal processing unit (5) when the PIP/PAP mode is not active, are used by the controller (6) in improving the main image (A).
[Claim 3] A display device (1) according to Claim 1 or Claim 2, characterized by a filter (3) which is used when the PIP/PAP mode is not active, and which directs the video signal coming from the main signal processing unit (4) to the second signal processing unit (5) after changing at least one image characteristic thereof.
PCT/IB2009/051710 2008-04-28 2009-04-27 A display device WO2009133513A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2008/02940 2008-04-28
TR200802940 2008-04-28

Publications (1)

Publication Number Publication Date
WO2009133513A1 true WO2009133513A1 (en) 2009-11-05

Family

ID=40908961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/051710 WO2009133513A1 (en) 2008-04-28 2009-04-27 A display device

Country Status (2)

Country Link
TR (1) TR201008574T1 (en)
WO (1) WO2009133513A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0675644A2 (en) * 1994-03-23 1995-10-04 Kabushiki Kaisha Toshiba Television receiver with picture-in-picture
US20060221249A1 (en) * 2005-03-30 2006-10-05 Samsung Electronics Co., Ltd. Dual-channel adaptive 2D noise reduction for video signals
US20060221238A1 (en) * 2005-03-14 2006-10-05 Motohiro Takayama Image output apparatus and image output method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0675644A2 (en) * 1994-03-23 1995-10-04 Kabushiki Kaisha Toshiba Television receiver with picture-in-picture
US20060221238A1 (en) * 2005-03-14 2006-10-05 Motohiro Takayama Image output apparatus and image output method
US20060221249A1 (en) * 2005-03-30 2006-10-05 Samsung Electronics Co., Ltd. Dual-channel adaptive 2D noise reduction for video signals

Also Published As

Publication number Publication date
TR201008574T1 (en) 2011-06-21

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