TWI488490B - Automatically tuning method for wireless display and display device and communication device using the same - Google Patents
Automatically tuning method for wireless display and display device and communication device using the same Download PDFInfo
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本發明是有關於一種自動調整無線顯示品質的機制，且特別是有關於自動調整無線顯示品質方法及其顯示裝置與通信裝置。The present invention relates to a mechanism for automatically adjusting wireless display quality, and more particularly to a method for automatically adjusting wireless display quality, and a display device and a communication device therefor.
現有的顯示裝置，例如顯示器、電視、投影機等，大多是經由有線的傳輸線(例如，VGA、DVI、HDMI規格的傳輸線)來接受訊號裝置(例如，筆記型電腦或個人電腦)所發送出來的視頻訊號與音頻訊號。而近來逐漸發展的無線顯示方式(wireless display)則是將這中間傳送視頻/音頻訊號的方式以無線訊號(例如，Wi-Fi訊號)來取代，以避免使用傳輸線的距離限制與連接複雜度。然而，由於無線訊號傳送的頻寬限制，有可能會造成視頻/音頻訊號的傳送速率跟不上顯示裝置的播放速率，進而產生顯示畫面延遲狀況。通常，使用者在使用不同程式時，對顯示畫面的延遲時間或畫面遺失的情況有不同的忍受程度。例如，使用者通常無法容忍正在輸入的文字或所操作的游標出現明顯延遲情況，但對於不屬於細節的背景畫面延遲就較能容忍。因此，如何動態性調整無線顯示的訊號品質，以避免使用者察覺畫面延遲的情況確為目前重要的課題。Existing display devices, such as displays, televisions, projectors, etc., are mostly transmitted via a wired transmission line (for example, a VGA, DVI, or HDMI transmission line) to a signal device (eg, a notebook or a personal computer). Video signal and audio signal. The recently developed wireless display method replaces the intermediate transmission of video/audio signals with wireless signals (for example, Wi-Fi signals) to avoid the use of transmission line distance limitations and connection complexity. However, due to the bandwidth limitation of the wireless signal transmission, the transmission rate of the video/audio signal may not be able to keep up with the playback rate of the display device, thereby causing a display screen delay condition. Usually, when users use different programs, they have different tolerances for the delay time of the display screen or the loss of the screen. For example, users often cannot tolerate significant delays in the text being entered or the cursor being manipulated, but are more tolerant of background image delays that are not detailed. Therefore, how to dynamically adjust the signal quality of the wireless display to avoid the user's perception of the picture delay is indeed an important issue at present.
承上所述，本發明之示範實施例提供一種自動調整無線顯示品質的方法及其顯示裝置與通信裝置。藉由於預設時間內觀測傳送端裝置的至少一輸入單元的輸入頻率，來判斷目前執行程式的互動性程度，來適應性調整編碼品質與資料緩衝區大小，以減少在接收端出現視頻內容與音頻內容的延遲情況。互動性程度至少包括互動性模式與非互動性模式。In view of the above, an exemplary embodiment of the present invention provides a method of automatically adjusting wireless display quality, and a display device and a communication device thereof. By observing the input frequency of at least one input unit of the transmitting device in a preset time, judging the degree of interaction of the currently executing program, adaptively adjusting the encoding quality and the data buffer size to reduce the video content appearing at the receiving end. Delay in audio content. The degree of interactivity includes at least an interactive mode and a non-interactive mode.
根據本發明的一示範實施例，本發明提出一種自動調整無線顯示品質方法。所述的方法適用於自動調整無線顯示品質，且包括以下步驟：判斷於一傳送端裝置目前執行之一程式的互動性程度；以及根據此互動性程度，調整傳送端裝置的至少一傳送訊框的編碼品質，以及調整傳送端裝置之一接收端裝置的一資料緩衝區的大小。In accordance with an exemplary embodiment of the present invention, the present invention provides a method of automatically adjusting wireless display quality. The method is suitable for automatically adjusting wireless display quality, and includes the following steps: determining a degree of interaction of a program currently executed by a transmitting device; and adjusting at least one transmitting frame of the transmitting device according to the degree of interaction The encoding quality, as well as the size of a data buffer of the receiving device of one of the transmitting end devices.
在本發明之一示範實施例中，所述判斷程式的互動性程度的步驟包括：藉由查找一互動性程度對照清單，判斷該程式的互動性程度。In an exemplary embodiment of the present invention, the step of determining the degree of interactivity of the program comprises: determining the degree of interactivity of the program by looking up an interactive degree comparison list.
在本發明之一示範實施例中，所述判斷程式的互動性程度的步驟包括：藉由接收一使用者的一設定命令，來判斷該程式的互動性程度。In an exemplary embodiment of the present invention, the step of determining the degree of interactivity of the program comprises: determining a degree of interactivity of the program by receiving a setting command of a user.
在本發明之一示範實施例中，根據此程式的互動性程度，調整至少一傳送訊框的編碼品質的步驟包括：當此程式的互動性程度為互動性模式時，降低編碼品質；以及當此程式的互動性程度為非互動性模式時，提高編碼品質。In an exemplary embodiment of the present invention, the step of adjusting the coding quality of the at least one transmission frame according to the degree of interactivity of the program includes: reducing the coding quality when the degree of interaction of the program is an interactive mode; Improve the coding quality when the program's degree of interactivity is non-interactive.
在本發明之一示範實施例中，所述編碼品質包括一解 析度與一訊框速率。In an exemplary embodiment of the invention, the encoding quality includes a solution Resolution and frame rate.
在本發明之一示範實施例中，根據所述程式的互動性程度調整接收端裝置的資料緩衝區的大小的步驟包括：當此程式的互動性程度為互動性模式時，不使用資料緩衝區；以及當此程式的互動性程度為非互動性模式時，增加資料緩衝區的大小。In an exemplary embodiment of the present invention, the step of adjusting the size of the data buffer of the receiving device according to the degree of interactivity of the program includes: when the degree of interaction of the program is the interactive mode, the data buffer is not used. And increase the size of the data buffer when the degree of interactivity of this program is non-interactive.
在本發明之一示範實施例中，當此程式的互動性程度為非互動性模式時，所述的方法更包括：於接收端裝置在一預設緩衝時間內，連續地接收至少一傳送訊框；以及在預設緩衝時間後，才開始輸出至少一傳送訊框對應的視頻內容與音頻內容。In an exemplary embodiment of the present invention, when the degree of interaction of the program is a non-interactive mode, the method further includes: receiving, by the receiving device, at least one transmission message continuously within a preset buffer time. a frame; and after the preset buffer time, the video content and the audio content corresponding to the at least one frame are output.
在本發明之一示範實施例中，當此程式的互動性程度為非互動性模式，且接收端裝置遺失至少一訊框時，所述的方法更包括：此接收端裝置要求其傳送端裝置重新傳送所述遺失的訊框。In an exemplary embodiment of the present invention, when the degree of interactivity of the program is a non-interactive mode, and the receiving device loses at least one frame, the method further includes: the receiving device requires the transmitting device Retransmit the lost frame.
根據本發明的一示範實施例，本發明提出一種顯示裝置。所述的顯示裝置適用於自動調整無線顯示品質，且包括一無線通信模組、一資料緩衝單元、一控制單元與一輸出單元。無線通信模組用來接收至少一訊框。資料緩衝單元連接至無線通信模組，用來暫存所述至少一訊框。控制單元連接至無線通信模組，用來確認一傳送端裝置目前執行之一程式的互動性程度，並根據互動性程度調整資料緩衝單元的資料緩衝區大小。另外，輸出單元連接至無線通信模組與資料緩衝單元，用來輸出至少一視頻內容與至少 一音頻內容。According to an exemplary embodiment of the invention, the invention provides a display device. The display device is adapted to automatically adjust wireless display quality, and includes a wireless communication module, a data buffer unit, a control unit and an output unit. The wireless communication module is configured to receive at least one frame. The data buffer unit is connected to the wireless communication module for temporarily storing the at least one frame. The control unit is connected to the wireless communication module for confirming the degree of interaction of a program currently executed by the transmitting device, and adjusting the data buffer size of the data buffer unit according to the degree of interaction. In addition, the output unit is connected to the wireless communication module and the data buffer unit for outputting at least one video content and at least An audio content.
根據本發明的一示範實施例，本發明提出一種通信裝置。所述的顯示裝置適用於自動調整無線顯示品質，且包括一無線通信模組、一編碼單元與一控制單元。無線通信模組用來傳送至少一訊框。編碼單元用來分別編碼目前執行的一程式的至少一視頻內容與至少一音頻內容為所述的至少一訊框。另外，控制單元連接於無線通信模組與編碼單元，用來判斷該程式的互動性程度，通知一接收端裝置該程式的互動性程度，並且根據此互動性程度來調整編碼單元操作的編碼品質。According to an exemplary embodiment of the invention, the invention provides a communication device. The display device is adapted to automatically adjust wireless display quality, and includes a wireless communication module, a coding unit and a control unit. The wireless communication module is configured to transmit at least one frame. The encoding unit is configured to respectively encode at least one video content and at least one audio content of the currently executed program as the at least one frame. In addition, the control unit is connected to the wireless communication module and the coding unit for determining the degree of interaction of the program, notifying the degree of interaction of the program by the receiving device, and adjusting the coding quality of the coding unit operation according to the degree of interaction. .
根據本發明的示範實施例，本發明提出自動調整無線顯示品質的方法及其顯示裝置與通信裝置。藉由判斷目前執行之程式的互動性程度，可以對應地調整傳送端裝置的編碼品質的方式，以及動態性調整接收端裝置的資料緩衝區大小。如此一來，可以適應性地改善在接收端裝置輸出之視頻內容或音頻內容延遲的問題According to an exemplary embodiment of the present invention, the present invention proposes a method of automatically adjusting wireless display quality, and a display device and a communication device thereof. By judging the degree of interactivity of the currently executing program, the manner of adjusting the encoding quality of the transmitting device can be adjusted correspondingly, and the data buffer size of the receiving device can be dynamically adjusted. In this way, the problem of delaying the video content or audio content outputted by the receiving device can be adaptively improved.
為讓本發明之上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.
本發明提供一種自動調整無線顯示品質的方法，主要藉由偵測在訊號裝置端正在執行的程式的互動性程度，來選擇性且動態地調整此訊號裝置傳送至顯示裝置的訊號品質，或根據此程式的互動性程度來動態性調整顯示裝置處 的資料緩衝區(buffer)的大小，以避免使用者觀察到特定細節部份出現延遲的情況。本發明適用於一種無線顯示系統(未繪示)，此系統包括圖1A所繪示的通信裝置(此即一訊號裝置)，以及圖1A所繪示的顯示裝置(此即通信裝置的接收端裝置)。The present invention provides a method for automatically adjusting the quality of a wireless display, which selectively and dynamically adjusts the signal quality transmitted by the signal device to the display device by detecting the degree of interactivity of the program being executed at the signal device end, or according to The degree of interactivity of this program to dynamically adjust the display device The size of the data buffer (buffer) to avoid the user seeing a delay in the specific details. The present invention is applicable to a wireless display system (not shown), which includes the communication device (hereinafter, a signal device) illustrated in FIG. 1A, and the display device illustrated in FIG. 1A (this is the receiving end of the communication device) Device).
圖1A是根據本發明的一示範實施例所繪示一種通信裝置的功能方塊圖。請參照圖1A，所提出的通信裝置10適用於自動調整無線顯示的品質，且為無線顯示系統的傳送端裝置。此通信裝置10包括：一無線通信模組101、一編碼單元102、一控制單元103與一輸入單元104。FIG. 1A is a functional block diagram of a communication device according to an exemplary embodiment of the invention. Referring to FIG. 1A, the proposed communication device 10 is adapted to automatically adjust the quality of the wireless display and is a transmitting device of the wireless display system. The communication device 10 includes a wireless communication module 101, an encoding unit 102, a control unit 103, and an input unit 104.
無線通信模組101，連接於編碼單元102與控制單元103，用來傳送至少一訊框。此些訊框可用來傳送視頻內容、音頻內容或通知接收端裝置的一或多個信息。編碼單元102，用來分別編碼一或多個視頻內容與一或多個音頻內容為所述的一或多個傳送訊框。更清楚地說明，編碼單元102將目前通信裝置10正在執行的應用程式(未繪示)的顯示畫面(或視頻內容)與其音頻內容，編碼為訊框以傳送至接收端裝置。The wireless communication module 101 is connected to the encoding unit 102 and the control unit 103 for transmitting at least one frame. These frames can be used to transmit video content, audio content, or to notify one or more pieces of information of the receiving device. The encoding unit 102 is configured to respectively encode one or more video content and one or more audio content into the one or more transmission frames. More specifically, the encoding unit 102 encodes the display screen (or video content) of the application (not shown) currently being executed by the communication device 10 with its audio content as a frame for transmission to the receiving device.
控制單元103，連接於輸入單元104，用來判斷此輸入單元104目前執行的一或多個應用程式的互動性程度，通知接收端裝置此些應用程式的互動性程度，並且根據此些互動性程度來調整編碼單元102目前操作的編碼品質。所述編碼品質例如為一解析度(resolution)或一訊框速率(frame rate)。另外，在其他實施例中，控制單元103還 可以根據偵測目前無線通道的頻寬大小來調整編碼單元102目前操作的編碼品質。The control unit 103 is connected to the input unit 104 for determining the degree of interaction of the one or more applications currently executed by the input unit 104, notifying the receiving device of the degree of interaction of the applications, and according to the interaction. The degree of coding quality of the coding unit 102 is currently adjusted. The coding quality is, for example, a resolution or a frame rate. In addition, in other embodiments, the control unit 103 further The encoding quality of the current operation of the encoding unit 102 can be adjusted according to the bandwidth of the current wireless channel.
互動性程度(interactivity level)至少包括互動性模式與非互動性模式。輸入單元104可以用來接受使用者在操作此些應用程式時，藉由此輸入單元104輸入一或多個輸入命令，其中控制單元103藉由在一預設觀測時間內觀測輸入單元104的一輸入頻率，來判斷此些應用程式的互動性程度。所述的輸入單元104例如為一滑鼠、一鍵盤、一觸控螢幕輸入單元、一遊戲搖桿裝置、一數位攝影裝置或一音控輸入單元等。所述的預設觀測時間例如為1分鐘，而輸入頻率門限值例如為1分鐘內接收到輸入信號達10次。此即，當輸入頻率大於等於此輸入頻率門限值時，控制單元103可對應地判斷目前執行之程式的互動性程度為一互動性模式；反之，當輸入頻率小於此輸入頻率門限值時，控制單元103可對應地判斷目前執行之程式的互動性程度為一非互動性模式。The interactivity level includes at least an interactive mode and a non-interactive mode. The input unit 104 can be configured to accept one or more input commands by the input unit 104 when the user operates the applications, wherein the control unit 103 observes one of the input units 104 by using a preset observation time. Enter the frequency to determine the degree of interactivity of these applications. The input unit 104 is, for example, a mouse, a keyboard, a touch screen input unit, a game rocker device, a digital camera device or a voice input unit. The preset observation time is, for example, 1 minute, and the input frequency threshold value is, for example, 10 times of receiving the input signal within 1 minute. That is, when the input frequency is greater than or equal to the input frequency threshold, the control unit 103 can correspondingly determine that the degree of interaction of the currently executed program is an interactive mode; otherwise, when the input frequency is less than the input frequency threshold, the control Unit 103 can correspondingly determine that the degree of interactivity of the currently executing program is a non-interactive mode.
當目前執行之程式的互動性程度為一互動性模式時，控制單元103可以控制編碼單元102降低編碼品質；當目前執行之程式的互動性程度為非互動性模式時，控制單元103可以控制編碼單元102提高編碼品質。When the degree of interactivity of the currently executed program is an interactive mode, the control unit 103 can control the encoding unit 102 to reduce the encoding quality; when the degree of interactivity of the currently executed program is the non-interactive mode, the control unit 103 can control the encoding. Unit 102 improves the coding quality.
在其他實施例中，此輸入單元104還可用來接受使用者提供的一或多個輸入命令，其中此些輸入命令可以為設定命令，其用來設置每個程式的互動性程度。例如，使用者可以設定遊戲為一互動性模式，設定文字處理程式 (word processing application)為一互動性模式，但是設定多媒體播放程式(media player)為一非互動性模式。控制單元103則將此些程式與其對應互動性程度儲存在記憶體模組(未繪示)中的一互動性程度對照清單。另外，控制單元103可以藉由查找此互動性程度對照清單，判斷目前執行之程式的互動性程度。此外，控制單元103可以藉由無線通信模組101傳送一通知訊框至接收端裝置，以通知目前執行之程式的互動性程度。In other embodiments, the input unit 104 can also be used to accept one or more input commands provided by the user, wherein the input commands can be set commands, which are used to set the degree of interaction of each program. For example, the user can set the game to an interactive mode and set the word processing program. The word processing application is an interactive mode, but the media player is set to a non-interactive mode. The control unit 103 stores the programs and their corresponding degree of interaction in an interactive degree comparison list in the memory module (not shown). In addition, the control unit 103 can determine the degree of interactivity of the currently executed program by looking up the list of the degree of interaction. In addition, the control unit 103 can transmit a notification frame to the receiving device by the wireless communication module 101 to notify the degree of interaction of the currently executed program.
通信裝置10還可以包括一輸出單元(未繪示)，用來輸出目前執行的程式的一或多個視頻內容與一或多個音頻內容，且可以包括其他元件，例如天線模組、記憶體模組、處理器模組、作業系統與應用程式等，用來協助上述揭露的各元件執行其功能。The communication device 10 may further include an output unit (not shown) for outputting one or more video content and one or more audio contents of the currently executed program, and may include other components, such as an antenna module and a memory. Modules, processor modules, operating systems, and applications are used to assist the various components disclosed above to perform their functions.
圖1B是根據本發明的一示範實施例所繪示一種顯示裝置的功能方塊圖。請參照圖1B，此顯示裝置15為無線顯示系統的接收端裝置，且適用於自動調整無線顯示的品質，並包括：一無線通信模組151、一資料緩衝單元152、一控制單元153、一解碼單元154與一輸出單元155。無線通信模組151、資料緩衝單元152、控制單元153、解碼單元154與輸出單元155相互連接。FIG. 1B is a functional block diagram of a display device according to an exemplary embodiment of the invention. Referring to FIG. 1B, the display device 15 is a receiving end device of the wireless display system, and is adapted to automatically adjust the quality of the wireless display, and includes: a wireless communication module 151, a data buffer unit 152, a control unit 153, and a The decoding unit 154 and an output unit 155. The wireless communication module 151, the data buffer unit 152, the control unit 153, the decoding unit 154, and the output unit 155 are connected to each other.
無線通信模組151，用來接收一或多個訊框，其中此些訊框是接收由例如通信裝置10的傳送端裝置傳送的訊框。資料緩衝單元152，包括資料緩衝區(未繪示)，用來暫存所述此些訊框。控制單元153，連接至無線通信模 組151，用來確認傳送端裝置正在執行的應用程式的互動性程度，並根據此互動性程度來調整資料緩衝單元152的資料緩衝區大小。解碼單元154可以由資料緩衝單元152獲得一或多個訊框，並由此些訊框解碼產生音頻內容與視頻內容，並輸出此些音頻內容與視頻內容至輸出單元155。在其他實施例中，解碼單元154可以直接地由無線通信模組151獲得一或多個訊框，並由此些訊框解碼產生音頻內容與視頻內容，以減少輸出此些音頻內容與視頻內容的時間延遲。輸出單元155，用來輸出一或多個視頻內容與一或多個音頻內容。The wireless communication module 151 is configured to receive one or more frames, wherein the frames are received by a transmitting device such as the communication device 10. The data buffer unit 152 includes a data buffer (not shown) for temporarily storing the frames. Control unit 153, connected to the wireless communication mode The group 151 is configured to confirm the degree of interaction of the application being executed by the transmitting device, and adjust the data buffer size of the data buffer unit 152 according to the degree of interaction. The decoding unit 154 can obtain one or more frames by the data buffer unit 152, and thereby decode the audio content and the video content, and output the audio content and the video content to the output unit 155. In other embodiments, the decoding unit 154 may directly obtain one or more frames from the wireless communication module 151, and thereby decode the audio content and the video content to reduce the output of the audio content and the video content. Time delay. The output unit 155 is configured to output one or more video content and one or more audio content.
控制單元153可以藉由無線通信模組151從傳送端裝置接收一通知訊框，而此通知訊框告知在傳送端裝置目前執行之程式的互動性程度。當此程式的互動性程度為一互動性模式時，控制單元153可以控制資料緩衝單元152不使用其資料緩衝區暫存所接收的訊框，以減少因為暫存訊框所產生的時間延遲。當在傳送端裝置目前執行之應用程式的互動性程度為非互動性模式時，控制單元153可以控制資料緩衝單元152對應地增加其資料緩衝區的大小。The control unit 153 can receive a notification frame from the transmitting device by the wireless communication module 151, and the notification frame informs the degree of interaction of the program currently executed by the transmitting device. When the degree of interaction of the program is an interactive mode, the control unit 153 can control the data buffer unit 152 not to use the data buffer to temporarily store the received frame to reduce the time delay caused by the temporary frame. When the degree of interactivity of the application currently being executed by the transmitting device is a non-interactive mode, the control unit 153 can control the data buffer unit 152 to correspondingly increase the size of its data buffer.
更進一步說明，當在傳送端裝置目前執行之應用程式的此互動性程度為非互動性模式時，控制單元153可以控制資料緩衝單元152在一預設緩衝時間內，連續地接收此些訊框。所述的預設緩衝時間例如為5分鐘。然後，在此預設緩衝時間之後，解碼單元154才開始由資料緩衝單元152獲得此些訊框，並解碼輸出給輸出單元155，並進一步 輸出此些訊框中的視頻內容與音頻內容。例如，當傳送端裝置目前執行之應用程式為一多媒體播放程式時，由於使用者大多在意開始播放影片時不會出現顯示延遲的狀況，因此可以先進行暫存已接收訊框達到100個訊框之後，才開始由解碼單元154解碼並由輸出單元155輸出每一訊框的視頻內容與音頻內容。另外，當在傳送端裝置目前執行之應用程式的互動性程度為非互動性模式，且控制單元153判斷資料緩衝單元152遺失一或多個訊框時，控制單元153可以要求傳送端裝置重新傳送所述遺失的一或多個訊框。Further, when the degree of interaction of the application currently executed by the transmitting device is a non-interactive mode, the control unit 153 can control the data buffer unit 152 to continuously receive the frames within a preset buffer time. . The preset buffer time is, for example, 5 minutes. Then, after the preset buffering time, the decoding unit 154 starts to obtain the frames by the data buffer unit 152, and decodes the output to the output unit 155, and further Output the video content and audio content of these frames. For example, when the application currently being executed by the transmitting device is a multimedia player, since the user does not care about the display delay when the user starts to play the video, the temporary received frame can be temporarily transmitted to 100 frames. Thereafter, the video content and audio content of each frame are decoded by the decoding unit 154 and output by the output unit 155. In addition, when the degree of interactivity of the application currently executed by the transmitting device is a non-interactive mode, and the control unit 153 determines that the data buffer unit 152 has lost one or more frames, the control unit 153 may request the transmitting device to retransmit. The lost one or more frames.
圖2是根據本發明的一示範實施例所繪示一種自動調整無線顯示品質方法的流程圖。此自動調整無線顯示品質方法適用於一無線顯示系統，並包括下列主要步驟。在步驟S201中，傳送端裝置判斷目前執行之一程式的互動性程度。在步驟S203中，傳送端裝置根據互動性程度，調整傳送端裝置的一或多個傳送訊框的編碼品質，以及調整一接收端裝置的一資料緩衝區的大小。此外，在步驟S201中，傳送端裝置還可以通知接收端裝置目前執行之一程式的互動性程度。在步驟S203中，接收端裝置還可以根據此程式的互動性程度，來決定是否使用資料緩衝區。以下將參照圖3A至圖3C來進一步介紹自動調整無線顯示品質方法的不同實施方式。2 is a flow chart of a method for automatically adjusting wireless display quality according to an exemplary embodiment of the invention. This method of automatically adjusting the wireless display quality is applicable to a wireless display system and includes the following main steps. In step S201, the transmitting device determines the degree of interactivity of one of the programs currently executed. In step S203, the transmitting device adjusts the encoding quality of one or more transmission frames of the transmitting device according to the degree of interaction, and adjusts the size of a data buffer of the receiving device. In addition, in step S201, the transmitting device can also notify the receiving device of the degree of interaction of the program currently being executed. In step S203, the receiving device may further determine whether to use the data buffer according to the degree of interaction of the program. Different embodiments of the method of automatically adjusting the wireless display quality will be further described below with reference to FIGS. 3A through 3C.
圖3A是根據本發明的示範實施例所繪示另一種自動調整無線顯示品質方法的流程圖。此自動調整無線顯示品 質方法起始於步驟S301，在此步驟S301中，傳送端裝置藉由查找預先設定好的一互動性程度對照清單，來判斷目前執行之程式的互動性程度。另外，傳送端裝置還可以通知接收端裝置此程式的互動性程度。在步驟S303中，根據此互動性程度，傳送端裝置調整其編碼單元所產生的一或多個傳送訊框的編碼品質，以及調整一接收端裝置的資料緩衝區的大小。FIG. 3A is a flow chart showing another method of automatically adjusting wireless display quality according to an exemplary embodiment of the present invention. This automatically adjusts the wireless display The quality method starts in step S301, in which the transmitting end device determines the degree of interactivity of the currently executed program by searching for a pre-set interactive degree comparison list. In addition, the transmitting device can also notify the receiving device of the degree of interactivity of the program. In step S303, according to the degree of interaction, the transmitting device adjusts the encoding quality of one or more transmission frames generated by the encoding unit, and adjusts the size of the data buffer of the receiving device.
圖3B是根據本發明的示範實施例所繪示另一種自動調整無線顯示品質方法的流程圖。此自動調整無線顯示品質方法起始於步驟S311，在此步驟S311中，傳送端裝置藉由在一預設觀測時間內觀測傳送端裝置的一或多個輸入單元的輸入頻率，來判斷目前執行之程式的互動性程度。另外，傳送端裝置還可以通知接收端裝置此程式的互動性程度。在步驟S313中，根據此互動性程度，傳送端裝置調整其編碼單元所產生的一或多個傳送訊框的編碼品質，以及調整一接收端裝置的資料緩衝區的大小。FIG. 3B is a flow chart showing another method of automatically adjusting wireless display quality according to an exemplary embodiment of the present invention. The method for automatically adjusting the wireless display quality starts in step S311, in which the transmitting end device determines the current execution by observing the input frequency of one or more input units of the transmitting device in a predetermined observation time. The degree of interactivity of the program. In addition, the transmitting device can also notify the receiving device of the degree of interactivity of the program. In step S313, according to the degree of interactivity, the transmitting device adjusts the encoding quality of one or more transmission frames generated by the encoding unit, and adjusts the size of the data buffer of the receiving device.
圖3C是根據本發明的示範實施例所繪示另一種自動調整無線顯示品質方法的流程圖。此自動調整無線顯示品質方法起始於步驟S321，在步驟S321中，傳送端裝置藉由接收使用者的一設定命令，來判斷目前執行之程式的互動性程度，其中此設定命令至少設置目前執行之程式的互動性程度。另外，傳送端裝置還可以通知接收端裝置此程式的互動性程度。在步驟S323中，根據此互動性程度，傳送端裝置調整其編碼單元所產生的一或多個傳送訊框的 編碼品質，以及調整一接收端裝置的資料緩衝區的大小。FIG. 3C is a flow chart showing another method of automatically adjusting wireless display quality according to an exemplary embodiment of the invention. The method for automatically adjusting the wireless display quality starts at step S321. In step S321, the transmitting device determines the degree of interaction of the currently executed program by receiving a setting command of the user, wherein the setting command at least sets the current execution. The degree of interactivity of the program. In addition, the transmitting device can also notify the receiving device of the degree of interactivity of the program. In step S323, according to the degree of interaction, the transmitting device adjusts one or more transmission frames generated by the coding unit thereof. The encoding quality, as well as the size of the data buffer of a receiving device.
在上述步驟S303、S313、S323中，根據互動性程度來調整一或多個傳送訊框的編碼品質的步驟包括：當此程式的互動性程度為互動性模式時，降低傳送端裝置的編碼品質；以及當此程式的互動性程度為非互動性模式時，提高傳送端裝置的編碼品質。In the above steps S303, S313, and S323, the step of adjusting the coding quality of one or more transmission frames according to the degree of interactivity includes: reducing the coding quality of the transmitting device when the degree of interactivity of the program is the interactive mode And improve the encoding quality of the transmitting device when the degree of interactivity of the program is non-interactive.
在上述步驟S303、S313、S323中，根據互動性程度來調整接收端裝置的資料緩衝區的大小的步驟包括：當程式的互動性程度為互動性模式時，接收端裝置不使用資料緩衝區，或者使用較小的資料緩衝區空間；以及此程式的互動性程度為非互動性模式時，增加接收端裝置的資料緩衝區的大小。In the above steps S303, S313, and S323, the step of adjusting the size of the data buffer of the receiving device according to the degree of interaction includes: when the degree of interactivity of the program is the interactive mode, the receiving device does not use the data buffer. Or use a smaller data buffer space; and increase the size of the data buffer of the receiving device when the degree of interactivity of the program is non-interactive.
另外，當此程式的互動性程度為非互動性模式時，且接收端裝置使用資料緩衝區時，所述自動調整無線顯示品質方法還可以由接收端裝置在一預設緩衝時間內，連續地接收一或多個傳送訊框，並在所述預設緩衝時間後，才開始輸出一或多個傳送訊框對應的視頻內容與音頻內容。如此一來，接收端裝置可以有足夠的時間來判斷，是否在輸入視頻內容與音頻內容期間有遺失一或多個訊框。當有遺失一或多個訊框時，接收端裝置還可以由接收端裝置要求傳送端裝置重新傳送所述遺失的訊框。不過，在此實施例中，傳送端裝置須暫時保留部份已傳送的訊框在其資料緩衝區(未繪示)中。或者，接收端裝置可以基於依序接收的訊框順序作內插，或使用其他演算法來重新產生遺失的 訊框。In addition, when the degree of interactivity of the program is a non-interactive mode, and the receiving device uses the data buffer, the method for automatically adjusting the wireless display quality may be continuously performed by the receiving device in a preset buffering time. Receiving one or more transmission frames, and starting to output video content and audio content corresponding to one or more transmission frames after the preset buffer time. In this way, the receiving device can have enough time to judge whether one or more frames are lost during the input of the video content and the audio content. When one or more frames are lost, the receiving device may also request the transmitting device to retransmit the lost frame by the receiving device. However, in this embodiment, the transmitting device must temporarily retain a portion of the transmitted frame in its data buffer (not shown). Alternatively, the receiving device may interpolate based on the sequence of frames received sequentially, or use other algorithms to regenerate the lost Frame.
在其他實施例中，所述互動性程度還可以包括超過兩種互動性程度。舉例說明，所述互動性程度可以為：一第一互動性模式、一第二互動性模式與一第三互動性模式，其中第一互動性模式的互動性程度高於該第二互動性模式，而第二互動性模式的互動性程度高於該第三互動性模式。舉例說明，互動性程度可分為0~10之間的一互動性數值，例如，第一互動性模式的互動性數值為10，第二互動性模式的互動性數值為5，而第三互動性模式的互動性數值為1。In other embodiments, the degree of interactivity may also include more than two levels of interactivity. For example, the degree of interaction may be: a first interactive mode, a second interactive mode, and a third interactive mode, wherein the first interactive mode is more interactive than the second interactive mode The second interactive mode is more interactive than the third interactive mode. For example, the degree of interaction can be divided into an interactive value between 0 and 10. For example, the interactive value of the first interactive mode is 10, and the interactive value of the second interactive mode is 5, and the third interaction The interactive mode has a value of 1.
因此，在上述步驟S303、S313、S323中根據互動性程度，調整一或多個傳送訊框的編碼品質的步驟則可以調整為：假若一第一應用程式的互動性程度為第一互動性模式而一第二應用程式的互動性程度為第二互動性模式，當傳送端裝置目前執行之程式為第一應用程式時，調整傳送端裝置的編碼品質為一第一編碼品質，而當傳送端裝置目前執行之程式為第二應用程式時，調整傳送端裝置的編碼品質為一第二編碼品質，其中由於第一互動性模式的互動性程度高於第二互動性模式，因此第一應用程式的第一編碼品質小於第二應用程式的一第二編碼品質。Therefore, in the above steps S303, S313, and S323, the step of adjusting the coding quality of one or more transmission frames may be adjusted according to the degree of interaction: if the degree of interaction of the first application is the first interactive mode. The second application mode is a second interactive mode. When the program currently executed by the transmitting device is the first application, the encoding quality of the transmitting device is adjusted to be a first encoding quality, and when the transmitting end is When the program currently executed by the device is the second application, the encoding quality of the transmitting device is adjusted to a second encoding quality, wherein the first interactive mode is more interactive than the second interactive mode, so the first application is The first encoding quality is less than a second encoding quality of the second application.
另外，在接收端裝置處，上述步驟S303、S313、S323中根據互動性程度，調整接收端裝置的資料緩衝區步驟則可以調整為：假若一第一應用程式的互動性程度為第一互動性模式而一第二應用程式的互動性程度為第二互動性模 式，當傳送端裝置目前執行之程式為第一應用程式時，調整接收端裝置採用一第一資料緩衝區，而當傳送端裝置目前執行之程式為第二應用程式時，調整接收端裝置採用一第二資料緩衝區，其中由於第一互動性模式的互動性程度高於第二互動性模式，因此第一資料緩衝區小於第二資料緩衝區。In addition, at the receiving end device, in the above steps S303, S313, and S323, according to the degree of interaction, the step of adjusting the data buffer of the receiving end device may be adjusted to: if the degree of interaction of the first application is the first interactive Mode and the degree of interaction of a second application is the second interactive model When the program currently being executed by the transmitting device is the first application, the adjusting receiving device adopts a first data buffer, and when the program currently executed by the transmitting device is the second application, the adjusting receiving device is adopted. A second data buffer, wherein the first data buffer is smaller than the second data buffer because the first interactive mode is more interactive than the second interactive mode.
綜上所述，根據上述的示範實施例，本發明提供一種自動調整無線顯示品質方法及其顯示裝置與通信裝置。藉由多種方式判斷目前執行之程式的互動性程度，可以適應性調整傳送端裝置的編碼品質，以及動態性調整接收端裝置的資料緩衝區大小。如此一來，可以適應性地改善在接收端裝置輸出之視頻內容或音頻內容延遲的問題。In summary, according to the above exemplary embodiments, the present invention provides a method for automatically adjusting wireless display quality, a display device thereof and a communication device. By judging the degree of interactivity of the currently executed program in various ways, the coding quality of the transmitting device can be adaptively adjusted, and the data buffer size of the receiving device can be dynamically adjusted. In this way, the problem of delay in video content or audio content outputted by the receiving device can be adaptively improved.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，故本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
10‧‧‧通信裝置10‧‧‧Communication device
101、151‧‧‧無線通信模組101, 151‧‧‧ wireless communication module
102‧‧‧編碼單元102‧‧‧ coding unit
103、153‧‧‧控制單元103, 153‧‧‧Control unit
104‧‧‧輸入單元104‧‧‧Input unit
15‧‧‧顯示裝置15‧‧‧ display device
152‧‧‧資料緩衝單元152‧‧‧Data buffer unit
154‧‧‧解碼單元154‧‧‧Decoding unit
155‧‧‧輸出單元155‧‧‧Output unit
S201~S203、S301~S303、S311~S313、S321~S323‧‧‧步驟S201~S203, S301~S303, S311~S313, S321~S323‧‧‧ steps
圖1A是根據本發明的一示範實施例所繪示一種通信裝置的功能方塊圖。FIG. 1A is a functional block diagram of a communication device according to an exemplary embodiment of the invention.
圖1B是根據本發明的一示範實施例所繪示一種顯示裝置的功能方塊圖。FIG. 1B is a functional block diagram of a display device according to an exemplary embodiment of the invention.
圖2是根據本發明的一示範實施例所繪示一種自動調整無線顯示品質方法的流程圖。2 is a flow chart of a method for automatically adjusting wireless display quality according to an exemplary embodiment of the invention.
圖3A是根據本發明的示範實施例所繪示另一種自動調整無線顯示品質方法的流程圖。FIG. 3A is a flow chart showing another method of automatically adjusting wireless display quality according to an exemplary embodiment of the present invention.
圖3B是根據本發明的示範實施例所繪示另一種自動調整無線顯示品質方法的流程圖。FIG. 3B is a flow chart showing another method of automatically adjusting wireless display quality according to an exemplary embodiment of the present invention.
圖3C是根據本發明的示範實施例所繪示另一種自動調整無線顯示品質方法的流程圖。FIG. 3C is a flow chart showing another method of automatically adjusting wireless display quality according to an exemplary embodiment of the invention.
S201~S203‧‧‧步驟S201~S203‧‧‧Steps
Claims (22)
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| TW100128932A TWI488490B (en) | 2011-08-12 | 2011-08-12 | Automatically tuning method for wireless display and display device and communication device using the same |
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