WO2017097321A1 - Image display device with automatic audio and video mode configuration - Google Patents
Image display device with automatic audio and video mode configuration Download PDFInfo
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- WO2017097321A1 WO2017097321A1 PCT/EP2015/078795 EP2015078795W WO2017097321A1 WO 2017097321 A1 WO2017097321 A1 WO 2017097321A1 EP 2015078795 W EP2015078795 W EP 2015078795W WO 2017097321 A1 WO2017097321 A1 WO 2017097321A1
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- 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
- H04N21/439—Processing of audio elementary streams
- H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
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- 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
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- 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
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- 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
- H04N21/439—Processing of audio elementary streams
- H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
Definitions
- the present invention relates to a signal processing device such as an image display device performing automatic video and audio mode configuration in view of the incoming audio signal.
- Digital and interactive TV systems provide a comprehensive amount of TV channels and programs leading to the general outcome that conventional methods for configuring the operation of the image display device from among a plurality of setting parameters may become inefficient to the extent that it is unperformable in a time-saving manner.
- An image display device such as a TV set with a digital receiver-decoder to satisfactorily process the received services.
- An image display device may receive programs via cable or satellite broadcasting in the form of separate subscription formats.
- US 7945616 discloses a media distribution system whereby devices on a network are provided with native-mode, optimized content viewers adapted to receive and present digital content provided elsewhere on the network.
- An agent is downloaded to a device, where it gathers information regarding the device environment and uses that information to identify the appropriate application for that device.
- the appropriate application for a particular device is then downloaded to the device to enable the device to present the content to a user.
- the present invention provides a system and method by which an image display device is operable so as to automatically detect particulars of a program content and configure video and audio settings without requiring additional actions on the part of the user, as provided by the characterizing features defined in Claim 1.
- Primary object of the present invention is to provide a system and method by which management of video and/or audio configuration for a program content on a channel is carried out in an automatic manner.
- the present invention proposes an image display device monitoring an incoming audio signal in association with a broadcast program content and individually detecting all different audio components in the incoming audio signal in the manner that an audio evaluation unit periodically generates a categorical format percentage distribution set of the incoming audio signal, which is then used in selecting an audio enhancement block from among a plurality predefined audio enhancement blocks and also in performing video display mode adaptation based on a program genre determined in view of a plurality of categorical format percentage distribution sets.
- Fig. 1 demonstrates a general flow diagram according to which the image display device of the invention executes the method according to the present invention.
- the present invention relates to an image display device having channel/program and audio and video mode pairing function effectuating matching of alternative audio and video modes with a specific TV channel or specific program contents.
- the users can preconfigure the audio and video modes to apply certain audio and video settings to individual channels or programs to enhance the viewing experience and the perceived viewing quality.
- the channel and audio and video mode pairing can be performed manually through a respective settings menu on the control interface of the image display device or automatically by means of a control unit of the image display device.
- settings menu interface of the image display device may typically allow pairing of a given channel with a certain audio and video mode. Therefore, certain audio and video modes can be set for a specific TV channel broadcasting program contents of a single genre such as movies.
- the user can preview the list of broadcasting channels and assign for instance a preferred video mode to a certain channel from a display mode list.
- a TV service may have hundreds of channels, configuring audio and video settings for a significant number of channels and/or programs on a manual basis might take some serious time.
- Audio and video mode adaptation can be performed according to the genre information. It is known that digital broadcasting services provide information in regards to the genre of the programs being watched.
- the genre information may typically define a certain number of categories characterizing the content of a program.
- a content identifier therefore describes the contextual category of the digital program so as to let the users obtain information as to the classification of an event or a program.
- Content identifiers in association with different programs as provided by the broadcaster through the EPG can be used in order for determining the genre of a program.
- a plurality of programs is assigned to various program genres and the image display device retrieves the genre information in the form of a plurality of program genres indicative of the contextual character of a given program. This is especially advantageous if a given channel has no specific genre and broadcasts a multitude of broadcast program contents in different genres. Therefore, the image display device can obtain the information as to the genre of the program and accordingly select the appropriate audio and video mode parameters on a program-specific basis.
- the information as obtained from the EPG may not always be time-synchronized with the actual flow of programs on a specific channel and may as such not be reliable because noticeable and disturbing phase shifts may occur with respect to actual program content changes.
- the incoming audio signal of the program content is analyzed to determine both audio and video modes of the displayed program content without relying on the Electronic Program Guide genre information, which is also advantageous in cases where the image display device cannot retrieve the genre information from the EPG.
- the image display device of the present invention monitors the incoming audio signal in the manner that the content thereof is determined by analyzing the power spectrum.
- a power spectrum analyzer in this respect provides that the character of the incoming sound is determined.
- This information is used to determine the genre of the program content so that audio frequency settings are adjusted and one of the equalizer predefined settings (presets) corresponding to the program content being viewed is selected.
- the equalizer preset typically the frequency response of the image display device’s audio system is altered and the gain at a frequency band is adjusted.
- the incoming sound may include some musical content along with speech content.
- the input sound signal may contain several audible components at the same time.
- the power spectrum analyzer may detect individually all of these audio components by analyzing frequency bands.
- the power spectrum analyzer determines the incoming audio signal’s magnitude and frequency and corresponding frequency band for each sound input in a time interval is calculated by using signal processing techniques such as Fourier Transform. The power spectrum analyzer therefore calculates and generates meaningful outputs for an audio evaluation unit by analyzing the frequency band.
- Received audio content is then processed such that the outputs of the power spectrum analyzer are evaluated by the audio evaluation unit in a categorical format with a percentage distribution such as for instance 75% music, 13% speech and 12% environmental sound.
- This simple yet very efficient categorical approach is advantageous in that it provides directly practical results without overloading the processor.
- a preset selection unit selects a corresponding preset or audio enhancement block from among a plurality predefined presets, for example as in the case of a look-up table, based on the results obtained by the audio evaluation unit.
- the preset selection unit may have numerous predefined audio blocks like music, speech, environment sound with varying percentages.
- the preset selection unit applies a new corresponding preset.
- an actual incoming audio signal may consist of 75% music, 15% environment sound and 5% speech during a concert record and all of a sudden turn into a rate distribution of 75% speech and 25% environmental sound when the orchestra’s chief conductor gives a short speech to the audience.
- the preset selection unit determines the new preset to be effective.
- the control unit of the image display device automatically performs video display mode adaptation based on the categorical evaluation by the audio evaluation unit such that the categorical percentage distribution is associated with a certain program genre, which is then associated with a video display mode on a program-specific basis. Therefore, results of the categorical information by the audio evaluation unit is periodically retrieved by the control unit of the image display device so as to readjust the video display mode.
- the preset selection unit may immediately select and apply a corresponding preset or audio enhancement block from among a plurality predefined presets based on a single categorical percentage distribution set, a plurality of subsequent categorical percentage distribution sets may be needed to determine the program genre being viewed. For instance if a first categorical percentage distribution set as evaluated by the audio evaluation unit has a percentage distribution such as for instance 95% music and 5% environmental sound and the next categorical percentage distribution set has a distribution of 15% music, 50% speech and 35% environmental sound, the program genre may be determined as a movie because at least one categorical percentage distribution set reveals that the audio content contains speech.
- the results of the categorical information by the audio evaluation unit is periodically retrieved by the control unit to update the display mode if needed.
- the power spectrum analyzer regularly calculates (preferably every second) and generates meaningful outputs for the audio evaluation unit by analyzing the frequency band so that the preset selection unit regularly changes the applied audio preset.
- predetermined categorical percentage distribution sets are associated with predefined audio presets and video display modes according to a preloaded look-up table but while each new categorical percentage distribution set can dynamically change the applicable audio preset, the video display mode is changed based on a certain minimum number of subsequent categorical percentage distribution sets because frequent change of the display mode is less tolerable for viewers and therefore the display mode should only be changed after the genre information is verified with at least three subsequent categorical percentage distribution sets indicating the same result.
- a database of various display modes such as movie or sport associated with different video mode parameter settings can be accessed by the control unit to apply respective parameter settings.
- the video mode parameter settings for instance at least include contrast and brightness levels and many other known image control or color arrangements so that specific display mode settings (such as different contrast and brightness levels) in relation with a given channel or broadcast program content can be applied.
- the automatically activated audio or video mode for the channel or program being viewed can be previewed, changed and inactivated through the settings menu of the image display device.
- the user may alternatively set the desired mode on the settings menu independent from the general genre of the channel or the program.
- this arrangement of yet dynamic change of the display mode is particularly advantageous in that display mode adjustment can also be effected within the same program content, i.e. for instance during subsequent scenes in a movie.
- the present invention proposes an image display device for performing broadcast program content audio and video mode configuration function so as to change audio and video mode of a broadcast program according to the genre information thereof, the image display device receiving a plurality of broadcasting services and comprising a control unit.
- control unit comprises a power spectrum analyzer monitoring an incoming audio signal in association with a broadcast program content and individually detecting all different audio components in the incoming audio signal.
- control unit further comprises an audio evaluation unit processing outputs of the power spectrum analyzer to obtain a categorical format percentage distribution set of the incoming audio signal.
- control unit further comprises a preset selection unit selecting an audio enhancement block from among a plurality predefined audio enhancement blocks, the selected audio enhancement block corresponding to the categorical format percentage distribution set of the incoming audio signal as determined by the audio evaluation unit.
- control unit is adapted to automatically perform video display mode adaptation based on a plurality of categorical format percentage distribution sets.
- each categorical percentage distribution set is associated with a certain program genre, which is then associated with a video display mode.
- predetermined categorical percentage distribution sets are associated with predefined audio presets and video display modes according to a preloaded look-up table.
- video display mode is changed based on a certain minimum number of subsequent categorical percentage distribution sets.
- the display mode parameters include contrast and brightness to be applied in different levels.
- the image display device is fitted with an internal memory storing the database of a plurality of display modes containing specific display mode parameter settings.
- magnitude and frequency and corresponding frequency band for each sound input in a time interval in the incoming audio signal is determined by the power spectrum analyzer.
- control unit communicates with an internal memory to retrieve the previous output of the audio evaluation unit in the form of a categorical format percentage distribution set in a predetermined frequency.
- control unit periodically compares an actual output of the audio evaluation unit in the form of a categorical format percentage distribution set with the previous output thereof whereby audio and video mode change is dynamically performed on a real-time basis.
- the enhanced automatic audio and video mode changing system of the invention applies a specifically adapted display mode determined by analysis of the incoming audio signal.
- the user will as such save the effort from adjusting individual parameters such as sound presets or contrast and brightness levels depending on the TV channel or program being watched.
Abstract
The present invention relates to a signal processing device such as an image display device performing automatic video and audio mode configuration in view of the incoming audio signal. The present invention more particularly relates to an image display device for performing broadcast program content audio and video mode configuration function so as to change audio and video mode of a broadcast program according to the genre information thereof, the image display device receiving a plurality of broadcasting services and comprising a control unit.
Description
The present invention relates to a signal processing device such as an image display device performing automatic video and audio mode configuration in view of the incoming audio signal.
Digital and interactive TV systems provide a comprehensive amount of TV channels and programs leading to the general outcome that conventional methods for configuring the operation of the image display device from among a plurality of setting parameters may become inefficient to the extent that it is unperformable in a time-saving manner.
Considering the fact that a large number of television and multimedia services are being made available to consumers today, methods for enabling the host, i.e. an image display device such as a TV set with a digital receiver-decoder to satisfactorily process the received services are required. An image display device may receive programs via cable or satellite broadcasting in the form of separate subscription formats.
Assuming that a TV service may have hundreds of channels, configuring audio and video settings for a significant number of channels on a manual basis might take some serious time. On the other hand, configuration of video and/or audio modes can be automatically managed and users can be offered a less troublesome viewing experience without having to manually set parameters.
Among others, one of the prior art disclosures in the technical field of the present invention can be referred to as US 7945616, which discloses a media distribution system whereby devices on a network are provided with native-mode, optimized content viewers adapted to receive and present digital content provided elsewhere on the network. An agent is downloaded to a device, where it gathers information regarding the device environment and uses that information to identify the appropriate application for that device. The appropriate application for a particular device is then downloaded to the device to enable the device to present the content to a user.
The present invention provides a system and method by which an image display device is operable so as to automatically detect particulars of a program content and configure video and audio settings without requiring additional actions on the part of the user, as provided by the characterizing features defined in Claim 1.
Primary object of the present invention is to provide a system and method by which management of video and/or audio configuration for a program content on a channel is carried out in an automatic manner.
The present invention proposes an image display device monitoring an incoming audio signal in association with a broadcast program content and individually detecting all different audio components in the incoming audio signal in the manner that an audio evaluation unit periodically generates a categorical format percentage distribution set of the incoming audio signal, which is then used in selecting an audio enhancement block from among a plurality predefined audio enhancement blocks and also in performing video display mode adaptation based on a program genre determined in view of a plurality of categorical format percentage distribution sets.
Accompanying drawings are given solely for the purpose of exemplifying a system and method by which an image display device is operable, whose advantages over prior art were outlined above and will be explained in brief hereinafter.
The drawings are not meant to delimit the scope of protection as identified in the claims nor should they be referred to alone in an effort to interpret the scope identified in the claims without recourse to the technical disclosure in the description of the present invention.
Fig. 1 demonstrates a general flow diagram according to which the image display device of the invention executes the method according to the present invention.
The present invention relates to an image display device having channel/program and audio and video mode pairing function effectuating matching of alternative audio and video modes with a specific TV channel or specific program contents.
The users can preconfigure the audio and video modes to apply certain audio and video settings to individual channels or programs to enhance the viewing experience and the perceived viewing quality. The channel and audio and video mode pairing can be performed manually through a respective settings menu on the control interface of the image display device or automatically by means of a control unit of the image display device.
Conventionally, settings menu interface of the image display device may typically allow pairing of a given channel with a certain audio and video mode. Therefore, certain audio and video modes can be set for a specific TV channel broadcasting program contents of a single genre such as movies. In the respective section of the setting menu, the user can preview the list of broadcasting channels and assign for instance a preferred video mode to a certain channel from a display mode list. However, assuming that a TV service may have hundreds of channels, configuring audio and video settings for a significant number of channels and/or programs on a manual basis might take some serious time.
Audio and video mode adaptation can be performed according to the genre information. It is known that digital broadcasting services provide information in regards to the genre of the programs being watched. The genre information may typically define a certain number of categories characterizing the content of a program. A content identifier therefore describes the contextual category of the digital program so as to let the users obtain information as to the classification of an event or a program.
Content identifiers in association with different programs as provided by the broadcaster through the EPG (Electronic Program Guide) can be used in order for determining the genre of a program. A plurality of programs is assigned to various program genres and the image display device retrieves the genre information in the form of a plurality of program genres indicative of the contextual character of a given program. This is especially advantageous if a given channel has no specific genre and broadcasts a multitude of broadcast program contents in different genres. Therefore, the image display device can obtain the information as to the genre of the program and accordingly select the appropriate audio and video mode parameters on a program-specific basis. However, the information as obtained from the EPG may not always be time-synchronized with the actual flow of programs on a specific channel and may as such not be reliable because noticeable and disturbing phase shifts may occur with respect to actual program content changes.
According to the present invention, the incoming audio signal of the program content is analyzed to determine both audio and video modes of the displayed program content without relying on the Electronic Program Guide genre information, which is also advantageous in cases where the image display device cannot retrieve the genre information from the EPG. The image display device of the present invention monitors the incoming audio signal in the manner that the content thereof is determined by analyzing the power spectrum. A power spectrum analyzer in this respect provides that the character of the incoming sound is determined. This information is used to determine the genre of the program content so that audio frequency settings are adjusted and one of the equalizer predefined settings (presets) corresponding to the program content being viewed is selected. By changing the equalizer preset, typically the frequency response of the image display device’s audio system is altered and the gain at a frequency band is adjusted.
It is to be noted that the incoming sound may include some musical content along with speech content. The input sound signal may contain several audible components at the same time. For a movie scene that includes a couple of people talking to each other (speech), while they are walking outside (natural sound) and a music is playing at the background (musical content), the power spectrum analyzer may detect individually all of these audio components by analyzing frequency bands.
As each individual sound has its specific frequency characteristics, i.e. its own specific trace in the frequency band and if a certain sound is analyzed in terms of frequency, a flute sound or female voice, there shall be signals within a certain frequency range and the source of the sound can be determined in the frequency band. The power spectrum analyzer determines the incoming audio signal’s magnitude and frequency and corresponding frequency band for each sound input in a time interval is calculated by using signal processing techniques such as Fourier Transform. The power spectrum analyzer therefore calculates and generates meaningful outputs for an audio evaluation unit by analyzing the frequency band.
Received audio content is then processed such that the outputs of the power spectrum analyzer are evaluated by the audio evaluation unit in a categorical format with a percentage distribution such as for instance 75% music, 13% speech and 12% environmental sound. This simple yet very efficient categorical approach is advantageous in that it provides directly practical results without overloading the processor. After rating the outputs of the power spectrum analyzer in the form of music, speech, environment sound and so on, a preset selection unit selects a corresponding preset or audio enhancement block from among a plurality predefined presets, for example as in the case of a look-up table, based on the results obtained by the audio evaluation unit. The preset selection unit may have numerous predefined audio blocks like music, speech, environment sound with varying percentages.
If needed, the preset selection unit applies a new corresponding preset. For example an actual incoming audio signal may consist of 75% music, 15% environment sound and 5% speech during a concert record and all of a sudden turn into a rate distribution of 75% speech and 25% environmental sound when the orchestra’s chief conductor gives a short speech to the audience. To this end, if it is evaluated that the previously applied audio enhancement block or preset is no longer appropriate in view of the actual audio content, the preset selection unit determines the new preset to be effective.
The control unit of the image display device automatically performs video display mode adaptation based on the categorical evaluation by the audio evaluation unit such that the categorical percentage distribution is associated with a certain program genre, which is then associated with a video display mode on a program-specific basis. Therefore, results of the categorical information by the audio evaluation unit is periodically retrieved by the control unit of the image display device so as to readjust the video display mode.
While the preset selection unit may immediately select and apply a corresponding preset or audio enhancement block from among a plurality predefined presets based on a single categorical percentage distribution set, a plurality of subsequent categorical percentage distribution sets may be needed to determine the program genre being viewed. For instance if a first categorical percentage distribution set as evaluated by the audio evaluation unit has a percentage distribution such as for instance 95% music and 5% environmental sound and the next categorical percentage distribution set has a distribution of 15% music, 50% speech and 35% environmental sound, the program genre may be determined as a movie because at least one categorical percentage distribution set reveals that the audio content contains speech. The results of the categorical information by the audio evaluation unit is periodically retrieved by the control unit to update the display mode if needed. Likewise, the power spectrum analyzer regularly calculates (preferably every second) and generates meaningful outputs for the audio evaluation unit by analyzing the frequency band so that the preset selection unit regularly changes the applied audio preset.
Preferably, predetermined categorical percentage distribution sets are associated with predefined audio presets and video display modes according to a preloaded look-up table but while each new categorical percentage distribution set can dynamically change the applicable audio preset, the video display mode is changed based on a certain minimum number of subsequent categorical percentage distribution sets because frequent change of the display mode is less tolerable for viewers and therefore the display mode should only be changed after the genre information is verified with at least three subsequent categorical percentage distribution sets indicating the same result.
Conventionally, after the genre of the program content is determined, a database of various display modes such as movie or sport associated with different video mode parameter settings can be accessed by the control unit to apply respective parameter settings. The video mode parameter settings for instance at least include contrast and brightness levels and many other known image control or color arrangements so that specific display mode settings (such as different contrast and brightness levels) in relation with a given channel or broadcast program content can be applied.
The automatically activated audio or video mode for the channel or program being viewed can be previewed, changed and inactivated through the settings menu of the image display device. The user may alternatively set the desired mode on the settings menu independent from the general genre of the channel or the program.
Although the video display mode is changed based on a certain minimum number of subsequent categorical percentage distribution sets according to the invention, this arrangement of yet dynamic change of the display mode is particularly advantageous in that display mode adjustment can also be effected within the same program content, i.e. for instance during subsequent scenes in a movie.
In summary, the present invention proposes an image display device for performing broadcast program content audio and video mode configuration function so as to change audio and video mode of a broadcast program according to the genre information thereof, the image display device receiving a plurality of broadcasting services and comprising a control unit.
According to one embodiment of the present invention, the control unit comprises a power spectrum analyzer monitoring an incoming audio signal in association with a broadcast program content and individually detecting all different audio components in the incoming audio signal.
According to a further embodiment of the present invention, the control unit further comprises an audio evaluation unit processing outputs of the power spectrum analyzer to obtain a categorical format percentage distribution set of the incoming audio signal.
According to a further embodiment of the present invention, the control unit further comprises a preset selection unit selecting an audio enhancement block from among a plurality predefined audio enhancement blocks, the selected audio enhancement block corresponding to the categorical format percentage distribution set of the incoming audio signal as determined by the audio evaluation unit.
According to a further embodiment of the present invention, the control unit is adapted to automatically perform video display mode adaptation based on a plurality of categorical format percentage distribution sets.
According to a further embodiment of the present invention, each categorical percentage distribution set is associated with a certain program genre, which is then associated with a video display mode.
According to a further embodiment of the present invention, predetermined categorical percentage distribution sets are associated with predefined audio presets and video display modes according to a preloaded look-up table.
According to a further embodiment of the present invention, video display mode is changed based on a certain minimum number of subsequent categorical percentage distribution sets.
According to a further embodiment of the present invention, the display mode parameters include contrast and brightness to be applied in different levels.
According to a further embodiment of the present invention, the image display device is fitted with an internal memory storing the database of a plurality of display modes containing specific display mode parameter settings.
According to a further embodiment of the present invention, magnitude and frequency and corresponding frequency band for each sound input in a time interval in the incoming audio signal is determined by the power spectrum analyzer.
According to a further embodiment of the present invention, the control unit communicates with an internal memory to retrieve the previous output of the audio evaluation unit in the form of a categorical format percentage distribution set in a predetermined frequency.
According to a further embodiment of the present invention, the control unit periodically compares an actual output of the audio evaluation unit in the form of a categorical format percentage distribution set with the previous output thereof whereby audio and video mode change is dynamically performed on a real-time basis.
Therefore, the enhanced automatic audio and video mode changing system of the invention applies a specifically adapted display mode determined by analysis of the incoming audio signal. The user will as such save the effort from adjusting individual parameters such as sound presets or contrast and brightness levels depending on the TV channel or program being watched.
Claims (9)
- An image display device for performing broadcast program content audio and video mode configuration function so as to change audio and video mode of a broadcast program according to the genre information thereof, the image display device receiving a plurality of broadcasting services and comprising a control unit, characterized in that the control unit is adapted to automatically perform video display mode adaptation based on a plurality of categorical format percentage distribution sets and said control unit comprises:- a power spectrum analyzer monitoring an incoming audio signal in association with a broadcast program content and individually detecting all different audio components in the incoming audio signal,- an audio evaluation unit processing outputs of the power spectrum analyzer to obtain a categorical format percentage distribution set of the incoming audio signal,- preset selection unit selecting an audio enhancement block from among a plurality predefined audio enhancement blocks, the selected audio enhancement block corresponding to the categorical format percentage distribution set of the incoming audio signal as determined by the audio evaluation unit.
- An image display device as in Claim 1, characterized in that each categorical percentage distribution set is associated with a certain program genre, which is then associated with a video display mode.
- An image display device as in Claim 1 or 2, characterized in that predetermined categorical percentage distribution sets are associated with predefined audio presets and video display modes according to a preloaded look-up table.
- An image display device as in Claim 1, characterized in that video display mode is changed based on a certain minimum number of subsequent categorical percentage distribution sets.
- An image display device as in Claim 1 or 4, characterized in that the display mode parameters include contrast and brightness to be applied in different levels.
- An image display device as in Claim 4 or 5, characterized in that the image display device is fitted with an internal memory storing the database of a plurality of display modes containing specific display mode parameter settings.
- A method for operating an image display device as in Claim 1, characterized in that magnitude and frequency and corresponding frequency band for each sound input in a time interval in the incoming audio signal is determined by the power spectrum analyzer.
- A method for operating an image display device as in Claim 1, characterized in that the control unit communicates with an internal memory to retrieve a previous output of the audio evaluation unit in the form of a categorical format percentage distribution set in a predetermined frequency.
- A method for operating an image display device as in Claim 8, characterized in that the control unit periodically compares an actual output of the audio evaluation unit in the form of a categorical format percentage distribution set with the previous output thereof whereby audio and video mode change is dynamically performed on a real-time basis.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/EP2015/078795 WO2017097321A1 (en) | 2015-12-07 | 2015-12-07 | Image display device with automatic audio and video mode configuration |
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| PCT/EP2015/078795 WO2017097321A1 (en) | 2015-12-07 | 2015-12-07 | Image display device with automatic audio and video mode configuration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111989931A (en) * | 2018-04-24 | 2020-11-24 | 索尼公司 | Information processing apparatus, information processing method, and computer program |
| EP3759932A4 (en) * | 2018-04-23 | 2021-01-06 | Free Stream Media Corporation D/B/A Samba TV | Device setting adjustment based on content recognition |
| US11778282B2 (en) | 2018-07-30 | 2023-10-03 | Sony Group Corporation | Automatically setting picture mode for each media |
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