• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention includes parameter control means for controlling parameters of the signals in response to manual adjustments by a user as well as adjustments that are automatically generated based on current surrounding factors or characteristics of the signals. Relates to a device. The apparatus according to the invention comprises display means for providing a level indicator for displaying the combined result of manual and automatic adjustments.
    公开号:KR20010052599A
    申请号:KR1020007013793
    申请日:2000-03-21
    公开日:2001-06-25
    发明作者:반데긴스테구드룬
    申请人:요트.게.아. 롤페즈；코닌클리케 필립스 일렉트로닉스 엔.브이.；
    IPC主号:
    专利说明:

    Apparatus for processing signals
    A device of this type is known from US 5,045,926. Known apparatus are display devices or television receivers comprising means for automatically adjusting image parameters such as sharpness and luminance levels in response to variations in signal characteristics such as signal strength and image content. For example, because a preshoot or overshoot of a video signal that increases the sharpness of an image emphasizes noise, known devices increase the image clarity in the case of bright images, whereas small electric fields Sharpness is lowered in either the received image or the dark image. As another example, the luminance is lowered for bright images and higher for dark images, ignoring the video content of each image and preventing 'black deformation' or 'black separation'.
    The present invention provides a parameter control means for controlling parameters of signals, said parameter control means adapted to cause adjustments to said parameters in response to current ambient factors or properties of said signals. It relates to an apparatus for processing a signal.
    The invention also relates to a method of processing signals, comprising controlling the parameters of the signals by determining adjustments in response to current ambient factors or characteristics of the signals.
    1 is a diagram of a television receiver as an embodiment of the apparatus according to the invention.
    2 schematically illustrates a parameter control process of an apparatus according to the invention.
    It is an object of the present invention to provide an improved device of the type defined at the outset. For that purpose, the apparatus according to the invention further comprises display means for providing a level indicator for displaying the adjustments. In this way, visualization of the continuously varying adjustment of the parameter control means is achieved, providing the viewer with the automatic signal control characteristics of the device and their proper functions. The display means allows the user to compare the operation of the parameter control means with, for example, signal strength or surrounding factors perceived by the user. For example, the device may include sensing means for measuring ambient factors such as ambient brightness or ambient noise. By alternating surrounding factors, or by covering and not sensing means, the operation of the parameter control means can be influenced, which can be examined by said parameter control means. In that way the automatic control features can be easily demonstrated.
    Another embodiment of another apparatus according to the invention calculates the adjustments as a function of the user control means for setting a good parameter level input to the parameter control means, current ambient factors and the characteristics of the signals and the good parameter level. Said parameter control means adapted to adapt. For example, the user control means allows the user to enter a good constant value or brightness level. This good level is then input to the parameter control means and combined with the measurement indicative of ambient factors or signal characteristics. The resulting parameter adjustments are applied to the relevant signal parameters and communicated to the user by the display means. In this way it is possible for the user to investigate the interaction between the manual settings of the user control means and the automatic adjustments by the parameter control means.
    The invention is particularly suitable for controlling image parameters in monitors and television receivers. Optionally, the present invention can be applied to controlling audio parameters in a (primary) audio instrument or any other signal processing apparatus including means for automatically adjusting signal parameters.
    These and other features of the invention will be apparent from and elucidated in the drawings with reference to the embodiments described herein by way of non-limiting examples.
    1 shows a diagram of a television receiver as an embodiment of the apparatus according to the invention. Television signals from multiple channels are received from the antenna 101, or optionally from the cable network. Tuner 102 may select a channel in response to a command from central processing unit 109. The signal of the selected channel is demodulated and separated into an audio signal and a video signal. The audio signal is further processed by the audio processor 103 and the loudspeaker 105. The audio processor 103 includes an audio parameter controller 103 that controls audio parameters such as balance, treble, bass and loudness in response to control signals from the central processing unit 109. The video signal is further processed by the video processor 106 and displayed on the display screen 108. Video processor 106 controls video parameters such as brightness, contrast, color, sharpness, noise reduction, dynamic contrast and color enhancement in response to control signals from central processing unit 109. 107. The central control unit 109 includes a user command processor 110 and an automatic parameter controller 111. User command unit 112 may receive user commands, for example via a remote control (not shown), and may send the user commands to central processing unit 109. For example, the user may enter a channel number to select the corresponding channel. The channel number is translated by the user command processor into the appropriate command used to control the tuner 102 to tune to the channel required by the user command processor.
    The central processing unit 109 further receives signals from the detector 113, which measures ambient light. Nonvolatile memory 114 is connected to a central processing unit that stores data, such as, for example, presets and parameter settings. The central processing unit 109 may further generate visual images such as menus and level indicators. The automatic parameter controller 111 controls the audio parameter controller 104 and the video parameter controller 107 in response to the signals obtained from the tuner 102, the user command processor 110, and the detector 113 to be described herein. Can be controlled.
    2 schematically illustrates a parameter control process. The control process allows the user to control the video and sound parameters by selecting their 'taste' instead of the static settings known from conventional TVs, and the user can control the dynamic automatic parameter adjustment. You can benefit and adapt your requests in an easy way. The diagram of FIG. 2 applies to all separation parameter control such as, for example, noise reduction, sharpness, contrast, histogram change, and the like.
    The meter 201 transmits the measured value to the preprocessor 204. The metrology values may be measurements, such as signal strength, operational estimation, or color, for example. Optionally, the values can be obtained from a detector, such as, for example, an ambient brightness sensor, or a microphone. The constant value from the constant value source 202 may be selected by the switch 203 instead of the measurement values from the meter 201. The additional switch 206 allows a profile to be selected from the profile table 208 and sent to the preprocessor 204 which combines with the selected value obtained from the switch 203 and returns a result in response to the result. Send to processor 205 to determine parameter adjustment. If a constant value is selected from the value source 202, automatic parameter adjustment is separated from the measurement input, and the parameter adjustment is entirely determined by the profile selected from the profile table 208. Note that automatic parameter adjustment can be isolated independently from the measurement input for each separation parameter. The constant value generated from the value source 202 represents a 'average' value that can be measured by the meter 201.
    The processor 205 may determine parameter adjustment by a lookup table and / or algorithm. Each parameter may require different measurements. For example, for signals that are affected by noise, the improvement can be achieved by a combination of pixel values of the current and past fields of the video. However, this is only possible for the image area where no operation takes place. If operation occurs in any area, only information from the current field of video can be displayed for the area that prevents smearing, so noise reduction is not affected. Therefore, noise reduction may depend on measurements that represent the rate of operation in the current video content. As in other examples, using histogram changing techniques, the constant of the whole image can be improved. Variance of all luminance values is obtained from the TV scene (histogram). The histogram is used to calculate the optimal transmission for a particular scene, which is used to process video that digitally results in an image with enhanced contrast. For example, when most of the luminance information in the scene is located below the middle gray and there is little white in the scene, the range of levels between the middle black and the middle gray is emphasized.
    If the user wants to exchange profiles, the profile table 208 is connected to the user control 209 by an additional switch 207. The value representing the selected profile is sent to a level indicator 210 which becomes a dedicated display, such as an on-screen display element displayed on an LED array or television screen, for example. The level indicator 210 gives feedback on the adjustment of the selected profile.
    Based on the selected profile and the input values obtained from the switch 203, the values representing the parameter adjustments determined by the processor 205 may be dedicated, such as, for example, on-screen display elements displayed on an LED array or television screen. The display is sent to a level indicator 211, which can also be. Level indicators 210 and 211 can be distinct, combined, and visible at the same time or only at a time.
    In general, switch 207 is opened and switch 206 selects the desired profile, or is 'smart setting'. A profile is a set of predetermined coefficients representing a particular 'symbol'. The profile can be dedicated to one particular parameter or combination of parameters. The profile is stored in nonvolatile memory 114. If the user is not satisfied with the selected user profile, the coefficients can be adjusted via user control 209 and switch 207. The adjusted profile is well stored in memory 114. During this adjustment, the level indicator 210 can show the adjusted value of the selected profile. The adjustment is effective immediately, thus adapting the imaging parameters. Additional feedback is provided by the level indicator 211 showing the combined result of the selected profile and metrology inputs and causing a level indication to continuously follow the adjustment rate as determined by the processor 205. The profiles in the profile table 208 may be 'off', 'minimum', 'medium', 'maximum', or for example 'personal', 'soft', 'natural', 'rich', ' Sports', and the like.
    The level indicator 211 may be activated in response to a dedicated user command, such as, for example, a demonstration button. It may be more visible when the parameter value is adjusted by the user. The level indicator can be viewed simultaneously with similar level indicators representing different signal parameters. This is convenient in demonstration mode, which shows the adaptation of successive parameters to some or all related signal parameters. For example, on one screen, level indicators can be seen for example for brightness, contrast, dynamic contrast, color, sharpness, and noise reduction.
    In summary, the present invention includes parameter control means for controlling parameters of the signals in response to manual adjustment by a user as well as adjustments automatically generated based on current ambient factors and the characteristics of the signals. It relates to a device for processing. The device according to the invention comprises display means for providing a level indicator for displaying the combined result of manual and automatic adjustment.
    Although the present invention has been described with reference to specific embodiments, modifications and variations are possible within the scope of the inventive concept. Thus, for example, the functions described above may be implemented in hardware or software and combined or separated in an optional manner. The display means may display the result adjustment or average the adjustments accompanying the predetermined time interval. The word 'comprising' does not exclude other elements or steps than those listed.
    权利要求:
    Claims (6)
    [1" claim-type="Currently amended] An apparatus for processing signals,
    Parameter control means for controlling the parameters of the signals, the parameter control means adapted to cause adjustment to the parameters in response to current ambient factors or characteristics of the signals,
    And display means for providing a level indicator for displaying the adjustments.
    [2" claim-type="Currently amended] The method of claim 1,
    User control means for setting a good parameter level input to said parameter control means, said parameter control means adapted to calculate said adjustments as a function of said good parameter level and said current ambient factors or characteristics of said signals; Signal processing device.
    [3" claim-type="Currently amended] The method according to claim 1 or 2,
    The signals are video signals,
    The parameters are imaging parameters (e.g. contrast, brightness, saturation),
    And wherein the ambient factors are ambient light.
    [4" claim-type="Currently amended] In a television receiver,
    A television receiver comprising the device of claim 1.
    [5" claim-type="Currently amended] In the method of processing signals,
    Controlling the parameters of the signals by determining adjustments in response to current ambient factors or characteristics of the signal,
    Providing a level indicator indicating the adjustments.
    [6" claim-type="Currently amended] The method of claim 5,
    Setting a good parameter level,
    Said adjustments are calculated as a function of said good parameter level and current ambient factors or characteristics of said signals.
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    JP4786799B2|2011-10-05|
    WO2000060855A1|2000-10-12|
    US7119852B1|2006-10-10|
    CN1189026C|2005-02-09|
    DE60044965D1|2010-10-28|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-04-06|Priority to EP99201038
    1999-04-06|Priority to EP99201038.9
    2000-03-21|Application filed by 요트.게.아. 롤페즈, 코닌클리케 필립스 일렉트로닉스 엔.브이.
    2001-06-25|Publication of KR20010052599A
    2007-07-10|Application granted
    2007-07-10|Publication of KR100737180B1
    优先权:
    申请号 | 申请日 | 专利标题
    EP99201038|1999-04-06|
    EP99201038.9|1999-04-06|
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