201132133 六、發明說明： 【發明所屬之技術領域】 本發明係有關於，將藉由訊號線以序列資料方式而M 送來之影像資料予以接收並處理的收訊裝置。 【先前技術】 專利文獻1中所記載的收訊裝置，係爲將從送訊裝置 藉由物理連結上設置的N條（N係2以上之整數）虛擬管 線而分別以封包資料方式而被送來的影像資料加以接收並 處理的裝置，係將藉由各虛擬管線所送來的封包資料予以 接收’基於該接收到的封包資料來將影像資料予以復原， 將該復原所得到的影像資料，輸出至例如液晶顯示裝置。 此種收訊裝置，係基於藉由Ν條虛擬管線所送來的封 包資料而將影像資料予以復原時若發生失敗，則針對物理 連結進行訓練以期能夠正常復原。 在該訓練時，復原失敗的收訊裝置會透過控制線而向 送訊裝置發送訓練開始要求，收到該訓練開始要求的送訊 裝置會透過物理連結而向收訊裝置發送所定之測試波形， 收訊裝置會接收該所定之測試波形，測定錯誤率，基於該 錯誤率而設定傳輸速率》 然後’ 一旦訓練結束，則收訊裝置再次基於從送訊裝 置藉由Ν條虛擬管線而分別送來的封包資料，而將影像資 料予以復原，將該復原所得到之影像資料，輸出至例如液 晶顯示裝置。 -5- 201132133 〔先前技術文獻〕 〔專利文獻〕 〔專利文獻1〕日本特開2004-336745號公報 【發明內容】 〔發明所欲解決之課題〕 在復原失敗後進行上記訓練的期間，收訊裝置係無$ 取得原本的影像資料，顯示裝置係無法顯示原本的影像° 因此，顯示在顯示裝置上的影像會產生紊亂等顯示影像之 劣化》 本發明係爲了解決上記問題點而硏發，目的在於提供 —種，能夠抑制影像資料復原失敗時的影像劣化的收訊裝 置。 〔用以解決課題之手段〕 本發明所述之收訊裝置，係屬於將藉由N條訊號線 Li〜LN而分別以序列資料方式而被送來之影像資料予以接 收並處理的裝置，其特徵爲，具備：（1)收訊部Rn，係 對應於各訊號線L n而設置，將藉由訊號線L n所送來的序 列資料予以接收，基於該接收到的序列資料而將影像資料 及時脈予以復原’當該復原成功時則將影像資料及時脈予 以輸出，當該復原失敗時則將復原N G訊號予以輸出；和 (2 )處理部’係將從收訊部Rl〜Rn所分別輸出的影像資 料及時脈或復原N G訊號加以輸入並處理。再者，本發明 201132133 所述之收訊裝置中所含之處理部，其特徵爲，（a)令從 該收訊部Rnl所輸出之影像資料，同步於從未輸出復原 ng訊號之收訊部Rnlm輸出的時脈而輸出；（b)當有從 任一收訊部Rn((輸出復原NG訊號時，針對該收訊部Rn0， 令其同步於基於未輸出復原NG訊號之收訊部Rnl所輸出 的時脈所生成的時脈，而輸出虛假之影像資料。其中，N 係2以上之整數，n、n〇、ni係1以上N以下之整數。 在本發明所述的收訊裝置中，藉由各收訊部Rn，從各 訊號線Ln所送來的序列資料會被接收，基於該接收到的 序列資料來復原影像資料及時脈。當該復原成功時則影像 資料及時脈會從收訊部Rn輸出》另一方面，當該復原失 敗時則復原NG訊號會從收訊部Rn輸出。在處理部中，從 各收訊部Rn所輸出的影像資料及時脈或復原NG訊號，會 被輸入而處理。在處理部中，令從該收訊部Rnl所輸出之 影像資料’同步於從未輸出復原NG訊號之收訊部Rn,所 輸出的時脈而輸出。又’在處理部中，係當有從任一收訊 部Rn〇輸出復原NG訊號時’針對該收訊部Rn()，令其同步 於基於未輸出復原NG訊號之收訊部Rn!所輸出的時脈所 生成的時脈，而輸出虛假之影像資料。 在本發明所述的收訊裝置中，處理部係針對有輸出復 原NG訊號的收訊部RnC)，輸出事前準備好的虛假之影像 資料’較爲理想。處理部係針對有輸出復原NG訊號的收 訊部RnG ’將基於未輸出復原NG訊號之收訊部Rnl所輸出 的影像資料所生成的虛假之影像資料，予以輸出，也很理 201132133 想。又，處理部係針對有輸出復原NG訊號的收訊部Rn0 ，將基於未輸出復原NG訊號之收訊部Rnl所輸出的影像 資料當中相鄰之2個以上之像素的影像資料並藉由內插所 生成的虛假之影像資料，予以輸出，較爲理想。 〔發明效果〕 本發明所述的收訊裝置，係能夠抑制影像資料復原失 敗時的影像劣化。 【實施方式】 以下，參照添附圖面，詳細說明用以實施本發明的形 態。此外，於圖面的說明中，同一要素係標示同一符號， 並省略重述說明。 圖1係含有本實施形態所述之收訊裝置1 〇及送訊裝 置2 〇的通訊系統1之槪略構成的圖示。本實施形態所述 之收訊裝置1 0，係藉由N條訊號線L , ~ LN及控制線Lc 而與送訊裝置20連接。收訊裝置10，係將從送訊裝置20 藉由N條訊號線L i〜LN所分別送來之序列資料，予以接 收’基於該序列資料而將影像資料及時脈予以復原，將該 復原所得到的影像資料，輸出至顯示裝置3 〇 ^又，收訊裝 置1 0，係與送訊裝置2 0之間，藉由控制線Lc而收送著 控制訊號。此處，N係2以上之整數。 各訊號線Ln —般而言係將序列資料作單向高速傳輸 。各訊號線Ln ’係可爲實體上的1條線，也可以是小振幅 -8- 201132133 差動訊號方式（LVDS:Low-Voltage Differential Signaling )這類傳輸差動資料的1對線。此處，！！係1以上N以下 的各整數。另一方面，控制線Lc係一般是將控制訊號作 低速傳輸。控制線L c ’係可爲1條或複數條，可爲雙向 或單向。 在以下的說明中，爲了簡化說明，將N値設爲4，假 設從送訊裝置20送往收訊裝置1〇的影像的1畫格是8X8 像素。圖2〜圖6、圖8〜圖12各圖中，各四方形係代表 著像素’各四方形中所記入的數字，係代表發送該像素之 影像資料的訊號線Ln的η値。又，1畫格的8x8像素當中 位於第i行第j列之像素的影像資料，表示作Gu。i、j 係分別爲1以上8以下的整數。 圖2係從送訊裝置20送往收訊裝置10所發送的影像 之映射之一例。各行的第1列及第5列之像素的影像資料 Gi，i，Gi，5’係被訊號線Li所發送。各行的第2歹IJ及第6列 之像素的影像資料Gi,2，Gy，係被訊號線L2所發送。各 行的第3列及第7列之像素的影像資料Gi,3, Gi,7，係被訊 號線L3所發送。又，各行的第4列及第8列之像素的影 像資料G i ,4，G i, 8，係被訊號線L4所發送。 圖3係從送訊裝置20送往收訊裝置1〇所發送的影像 資料之順序的說明圖。各行的第1列〜第4列之4個像素 的影像資料Gy或各行的第5列〜第8列之4個像 素的影像資料Gi,s〜Gi，8是成1組，各組的影像資料是以 圖中箭頭所示順序而被發送。首先，第1行的第1列〜第 -9 - 201132133 4列之4個像素的影像資料G ,, 1〜G i ,4係被訊號線L ,〜L4 約同時地發送。接著，第1行的第5列〜第8列之4個像 素的影像資料G1>5〜G1>8係被訊號線1^〜ί4約同時地發送 。再來，第2行的第1列〜第4列之4個像素的影像資料 〜G2,4係被訊號線h〜L4約同時地發送。以下也同樣 如此。 圖4及圖5分別是被顯示裝置所顯示之影像的例子之 圖示。圖4係將文字作映射時的影像之顯示例。圖5係自 然畫面等有漸層的影像的顯示例。收訊裝置10，係基於從 送訊裝置20藉由4條訊號線Ll〜L4所分別送來之序列資 料而將影像資料及時脈予以復原，同步於該復原所得之時 脈而將影像資料輸出至顯示裝置。圖4及圖5係圖示，基 於全部訊號線所送來的序列資料的復原，是在收訊裝置1〇 中成功時，顯示裝置上的顯示例。 假設因爲雜訊等某些理由導致4條訊號線h〜L4當 中任一訊號線所送來的序列資料爲基礎的復原，在收訊裝 置1 〇中失敗時’則針對該訊號線就必須進行訓練使其能 正常復原。在復原失敗後進行訓練的期間，收訊裝置！ 〇 係無法取得原本的影像資料，顯示裝置係無法顯示原本的 影像。 在先前技術中，由於是針對4條訊號線L,〜L4全部 進行訓練’因此收訊裝置係無法從4條訊號線Li〜L4之 任一者取得原本的影像資料。因此，復原失敗後進行訓練 之期間中’顯示裝置所顯示的影像，係如圖6所示全體爲 -10- 201132133 黑色、白色或是灰色等的影像，是和原本之影像完全不同 。因此，顯示裝置所顯示的影像，就會閃爍或亂掉，是劣 化的影像。 又，收訊裝置若針對4條訊號線線Ι^〜ί4全部停止 影像資料的接收，則無法將從送訊裝置所輸出的時脈在收 訊裝置上加以復原而輸出。收訊裝置，係由於訓練結束而 影像資料之復原成爲可能後亦將時脈予以復原，因此訓練 結束後的短暫期間中，也不能正常輸出影像資料。因此， 顯示裝置所顯示的影像之劣化係變爲顯著。 於是，本實施形態所述的收訊裝置1 〇，係爲了解決如 以上之問題點，而具有圖7所示的構成。圖7係含有本實 施形態所述之收訊裝置1 0之構成的區塊圖。收訊裝置1 0 ，係具備收訊部1〜114及處理部11。 各收訊部Rn，係對應於訊號線Ln而設置，將由訊號 線Ln所送來的序列資料予以接收。各收訊部Rn，係基於 該所收到的序列資料而將影像資料及時脈予以復原，當該 復原成功時則輸出影像資料及時脈。另一方面，各收訊部 Rn係當該復原失敗時則輸出復原NG訊號。各收訊部Rn， 係含有復原部1 2及訓練部1 3。 各收訊部Rn中所含之復原部1 2，係將藉由訊號線Ln 所送來的序列資料予以接收，基於該接收到的序列資料而 將影像資料及時脈予以復原，當該復原成功時則將影像資 料及時脈輸出至處理部11。又，復原部12，係當復原失 敗時，則將復原NG訊號輸出至處理部1 1，並且將用來指 -11 - 201132133 示訓練開始的訓練開始訊號，輸出至訓練部1 3。 訓練部1 3，係一旦從復原部1 2收取了訓練開始訊號 ，則透過控制線Lc而向送訊裝置20發送訓練開始要求， 基於從送訊裝置20所送來之訓練所需之所定序列資料， 就可進行復原。該訓練係僅針對復原失敗的訊號線而進行 〇 處理部1 1，係將從收訊部R i〜R4所分別輸出的影像 資料及時脈或復原NG訊號加以輸入並處理。具體而言， 處理部11係令從該收訊部Rnl所輸出之影像資料，同步 於從未輸出復原NG訊號之收訊部Rnl所輸出的時脈，而 輸出至顯示裝置30。又，處理部11係當有從任一收訊部 Rn〇輸出復原NG訊號時，針對該收訊部RnQ，令其同步於 基於未輸出復原N G訊號之收訊部Rn,所輸出的時脈所生 成的時脈，而將虛假之影像資料，輸出至顯示裝置30。處 理部1 1，係含有影像資料處理部1 4及時脈處理部1 5。 影像資料處理部1 4，係將從未輸出復原NG訊號的收 訊部所輸出的影像資料，直接予以輸出。另一方面，影像 資料處理部1 4，係針對有輸出復原NG訊號的收訊部，則 是輸出虛假之影像資料。時脈處理部15，係將從未輸出復 原NG訊號的收訊部所輸出的時脈，直接予以輸出。另一 方面，時脈處理部15’係針對有輸出復原NG訊號的收訊 部，則是將基於從未復原NG訊號之收訊部所輸出之時脈 所生成的時脈，予以輸出。 收訊裝置10’係同步於從時脈處理部15所輸出之時 -12- 201132133 脈’而將從影像資料處理部所輸出之影像資料，輸出 至顯不裝置30。 接著’針對影像資料處理部14中的處理內容，更詳 細說明。以下係說明’ 4條訊號線L,〜L 4當中第2訊號線 « L2所送來的序列資料爲基礎之復原，是在收訊裝置1〇的 收訊部R2中失敗時，影像資料處理部14的處理內容。圖 8〜圖11係基於收訊裝置1〇的影像資料處理部14中所被 處理的影像資料而被顯示裝置30所顯示之影像的例子之 圖示。 圖8所示的影像之例子，係對圖4所示之原本的影像 在收訊部R2中復原失敗時，將復原成功的第1列、第3 列、第4列、第5列、第7列及第8列各自的各像素之影 像資料當作復原所取得之影像資料，將復原失敗的第2列 的8個像素的影像資料Gl,2〜G8,2及第6列的8個像素的 影像資料Gli6〜Gs,6設成虛假之影像資料。 圖9所示的影像之例子，係對圖5所示之原本的影像 在收訊部R2中復原失敗時，將復原成功的第1列、第3 列、第4列、第5列、第7列及第8列各自的各像素之影 像資料當作復原所取得之影像資料，將復原失敗的第2列 的8個像素的影像資料Gu、G8,2及第6列的8個像素的 影像資料<31>6〜G8,6設成虛假之影像資料。 基於從本實施形態所述之收訊裝置1 0所輸出之影像 資料而被顯示裝置30所顯示的影像（圖8、圖9)係和原 本的影像（圖4、圖5 )不同，但其顯示時間係僅在復原 -13- 201132133 成爲可能爲止的時間內’又其差異只有些微。因此，相較 於顯不如圖6所不之影像的先前技術的情形，在本實施形 態中’影像劣化是被大幅降低。然後，一旦針對訊號線L2 的訓練結束而成爲可復原，則原本的影像（圖4、圖5) < 的影像資料就會被收訊裝置1 0取得。 圖8及圖9各圖中的第2列及第6列之各像素的虛假 之影像資料，係亦可爲事前準備好的資料。虛假之影像資 料’係在顯示裝置30上顯示之際儘可能不顯眼爲理想， 例如是亮度低的黑色’或是若被其他像素所使用的顏色是 白色較多時就設成該顏色。 圖10所示的影像之例子，係對圖4所示之原本的影 像在收訊部R2中復原失敗時，將復原成功的第1列、第3 列、第4列 '第5列、第7列及第8列各自的各像素之影 像資料當作復原所取得之影像資料，將復原失敗的第2列 的8個像素的影像資料〜G 8,2及第6列的8個像素的 影像資料Gi,e〜Gs,δ設成基於相鄰2個以上之像素的影像 資料並藉由內插所生成的虛假之影像資料。 圖1 1所不的影像之例子’係對圖5所示之原本的影 像在收訊部R2中復原失敗時，將復原成功的第1列、第3 列、第4列、第5列、第7列及第8列各自的各像素之影 像資料當作復原所取得之影像資料，將復原失敗的第2列 的8個像素的影像資料Gl,2〜G8,2及第6列的8個像素的 影像資料〇1>6〜G8,6設成基於相鄰2個以上之像素的影像 資料並藉由內插所生成的虛假之影像資料。 "14- 201132133 此處’虛假之影像資料Gi,2 ’係基於左右相鄰之2像 素的影像資料Gi,!, Gi,3而藉由內插所生成。又，虛假之 影像資料Gi>6，係基於左右相鄰之2像素的影像資料Gi,5, Gi，7而藉由內插所生成。 此時，基於從本實施形態所述之收訊裝置1 0所輸出 之影像資料而被顯示裝置30所顯示的影像（圖10、圖11 )’若和前個例子的影像（圖8、圖9)比較，則是較接 近原本的影像（圖4、圖5)。尤其是，圖11所示的自然 畫面之影像，係大略等同於圖5所示的原本的影像。因此 ’復原失敗後進行訓練之期間中，即使圖1 0、圖1 1的影 像被顯示裝置30顯示出來時，該顯示影像看起來還不至 於被感覺到有影像劣化之程度。 圖10及圖11各圖中的第2列及第6列之各像素的虛 假之影像資料，係可僅基於左右相鄰之2像素的影像資料 而藉由內插所生成，也可基於不是左右相鄰之2像素而是 更遠的像素的影像資料而藉由內插所生成，也可基於不是 左右相鄰之2像素而是位於斜向之像素的影像資料而藉由 內插所生成。 又’當各像素與訊號線Ln是如圖12所示作對應的情 況下’第2訊號線L 2所送來之序列資料爲基礎的復原是 失敗時’虛假之影像資料係亦可使用左右2像素的影像資 料、上下2像素的影像資料及斜向4像素的影像資料之任 一者來生成。甚至，虛假之影像資料的生成演算法，係不 只有直線內插’亦可爲2次內插，內插方法並沒有特別限 -15- 201132133 定。 本實施形態所述之收訊裝置10，係基於從送訊裝置 2 0經由訊號線Ln所送來的序列資料而可持續復原時脈， 因此可避免因時脈未被送達顯示裝置30所造成的影像劣 化。因此，與原本的影像不同的內插影像被顯示裝置30 顯示時，只需要進行訓練的最小限度的時間即可，因此畫 質的劣化係爲最小。 此外，本實施形態中從送訊裝置2 0往收訊裝置1 〇發 送序列資料的訊號線的條數N雖然設爲4，但在本發明中 訊號線的條數N可以是2以上的任意數。 〔產業上利用之可能性〕 可適用於抑制收訊裝置中影像資料之復原失敗時的影 像劣化之用途。 【圖式簡單說明】 〔圖1〕圖1係含有本實施形態所述之收訊裝置1 0及 送訊裝置20的通訊系統1之槪略構成的圖示。 〔圖2〕圖2係從送訊裝置20送往收訊裝置所發 送的影像之映射之一例。 〔圖3〕圖3係從送訊裝置20送往收訊裝置1〇所發 送的影像資料之順序的說明圖。 〔圖4〕圖4係被顯示裝置所顯示之影像的第1例之 圖示。 -16- 201132133 〔圖5〕圖5係被顯示裝置所顯示之影像的第2例之 圖示。 〔圖6〕圖6係先前技術中收訊裝置在影像資料的復 原失敗時，被顯示裝置所顯示之影像的例子之圖示。 〔圖7〕圖7係含有本實施形態所述之收訊裝置10之 構成的區塊圖。 〔圖8〕圖8係基於收訊裝置1〇的影像資料處理部 Μ中所被處理的影像資料而被顯示裝置30所顯示之影像 的例子之圖示。 〔圖9〕圖9係基於收訊裝置丨〇的影像資料處理部 14中所被處理的影像資料而被顯示裝置30所顯示之影像 的例子之圖示。 〔圖10〕圖10係基於收訊裝置1〇的影像資料處理部 14中所被處理的影像資料而被顯示裝置30所顯示之影像 的例子之圖示。 〔圖11〕圖11係基於收訊裝置10的影像資料處理部 14中所被處理的影像資料而被顯示裝置3〇所顯示之影像 的例子之圖示。 〔圖12〕圖12係從送訊裝置2〇送往收訊裝置1〇所 發送的影像之映射之另一例。 【主要元件符號說明】 1 :通訊系統 1 〇 :收訊裝置 -17- 201132133201132133 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a receiving apparatus for receiving and processing image data sent by a signal line in a sequence data manner. [Prior Art] The receiving device described in Patent Document 1 is sent by packet data by N (N-number 2 or more integer) virtual lines provided from the transmitting device by physical connection. The device for receiving and processing the image data is received by the packet data sent by each virtual pipeline, and the image data is restored based on the received packet data, and the image data obtained by the restoration is obtained. It is output to, for example, a liquid crystal display device. Such a receiving device trains the physical link in order to recover normally if the image data is restored based on the packet data sent by the virtual line. During the training, the receiving device that fails the recovery transmits a training start request to the transmitting device through the control line, and the transmitting device that receives the training start request transmits the determined test waveform to the receiving device through the physical connection. The receiving device receives the predetermined test waveform, determines the error rate, and sets the transmission rate based on the error rate. Then, 'when the training is finished, the receiving device is again sent based on the virtual channel from the transmitting device. The image data is restored, and the image data obtained by the restoration is output to, for example, a liquid crystal display device. [5] [Patent Document 1] [Patent Document 1] JP-A-2004-336745 [Summary of the Invention] [Problems to be Solved by the Invention] During the period of the above-mentioned training after the failure of the restoration, the reception is received. The device does not have the original image data, and the display device cannot display the original image. Therefore, the image displayed on the display device is degraded such as a disordered display image. The present invention is directed to solving the problem described above. It is a receiving device that can suppress image degradation when image data fails to be restored. [Means for Solving the Problem] The receiving device according to the present invention belongs to a device for receiving and processing image data sent by a sequence data method by N signal lines Li to LN, respectively. The feature is that: (1) the receiving unit Rn is provided corresponding to each signal line Ln, receives the sequence data sent by the signal line Ln, and displays the image based on the received sequence data. The data is restored in time and time. 'When the restoration is successful, the image data is output in a timely manner. When the recovery fails, the NG signal is restored and output; and (2) the processing unit is from the receiving department R1 to Rn. The image data outputted separately or in time is restored and the NG signal is input and processed. Furthermore, the processing unit included in the receiving device of the present invention is characterized in that: (a) the image data output from the receiving unit Rn1 is synchronized with the unreceived output of the ng signal. The output of the Rnlm output is output; (b) when there is any receiving unit Rn ((when the output NG signal is output, the receiving unit Rn0 is synchronized with the receiving unit based on the unreturned NG signal) The clock generated by the clock output by Rnl outputs false image data. Among them, N is an integer of 2 or more, n, n〇, ni is an integer of 1 or more and N or less. In the device, the sequence data sent from each signal line Ln is received by each receiving unit Rn, and the image data is restored based on the received sequence data. When the restoration is successful, the image data is timely. The output will be output from the receiving unit Rn. On the other hand, when the restoration fails, the restored NG signal is output from the receiving unit Rn. In the processing unit, the image data output from each receiving unit Rn is timely or restored. The signal will be input and processed. In the processing department, the order is received from the receiver. The image data outputted by the portion Rn1 is output in synchronization with the output clock of the receiving portion Rn that has not output the restored NG signal. In the processing unit, the output is restored from any of the receiving portions Rn〇. In the NG signal, the target portion Rn() is synchronized with the clock generated based on the clock output from the receiving portion Rn! of the unrecovered NG signal, and the false image data is output. In the receiving device, the processing unit outputs the false image data prepared beforehand to the receiving unit RnC) that outputs the restored NG signal. The processing unit is configured to receive the recovered NG signal. The RnG' will output the false image data generated based on the image data output from the receiving unit Rn1 that has not output the restored NG signal, and it is also reasonable to use 201132133. Moreover, the processing unit responds to the output of the restored NG signal. The signal Rn0 is output based on the image data of two or more adjacent pixels among the image data outputted by the receiving portion Rn1 that has not output the restored NG signal, and is decoded by the false image data generated by the interpolation. Ideal. [Effect of the Invention] The receiving device according to the present invention is capable of suppressing image degradation when image data is failed to be restored. [Embodiment] Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and the description thereof will not be repeated. Fig. 1 is a schematic diagram showing the schematic configuration of the communication system 1 including the receiving device 1 and the transmitting device 2 of the present embodiment. The receiving device 10 of the present embodiment is connected to the transmitting device 20 by N signal lines L, LN and the control line Lc. The receiving device 10 is used by the transmitting device 20 The sequence data sent by the N signal lines L i to LN respectively is received, and the image data is restored in time and time based on the sequence data, and the image data obtained by the restoration is output to the display device 3 又^ The receiving device 10 and the transmitting device 20 receive the control signal by the control line Lc. Here, N is an integer of 2 or more. Each signal line Ln generally uses the sequence data as a one-way high-speed transmission. Each signal line Ln ′ may be a solid line or a pair of lines for transmitting differential data such as a small amplitude -8-201132133 Low-Voltage Differential Signaling (LVDS). Here,! ! It is one integer of 1 or more and N or less. On the other hand, the control line Lc generally transmits the control signal at a low speed. The control line L c ' can be one or plural, and can be bidirectional or unidirectional. In the following description, in order to simplify the description, N値 is set to 4, and it is assumed that one frame of the image sent from the transmitting device 20 to the receiving device 1 is 8×8 pixels. In each of Figs. 2 to 6 and Figs. 8 to 12, each square represents a numeral recorded in each square of the pixel, and represents a η 讯 of the signal line Ln for transmitting the image data of the pixel. Further, among the 8x8 pixels of one frame, the image data of the pixels located in the i-th row and the j-th column is expressed as Gu. i and j are each an integer of 1 or more and 8 or less. 2 is an example of mapping of images transmitted from the transmitting device 20 to the receiving device 10. The video data Gi, i, Gi, 5' of the pixels of the first column and the fifth column of each row are transmitted by the signal line Li. The image data Gi, 2, Gy of the pixels of the second and fourth columns of each row are transmitted by the signal line L2. The image data Gi, 3, Gi, 7 of the pixels of the third and seventh columns of each row are transmitted by the signal line L3. Further, the image data G i , 4, G i, 8 of the pixels of the fourth column and the eighth column of each row are transmitted by the signal line L4. Fig. 3 is an explanatory diagram showing the sequence of image data transmitted from the transmitting device 20 to the receiving device 1A. The image data Gy of the four pixels of the first column to the fourth column of each row or the image data of the four pixels of the fifth column to the eighth column of each row Gi, s~Gi, 8 are grouped into groups of images of each group. The data is sent in the order indicated by the arrows in the figure. First, the image data G, , 1 to G i , 4 of the 4th column of the 1st column to the -9th - 201132133 4th row of the first row are simultaneously transmitted by the signal lines L, L4. Next, the video data G1 > 5 to G1 > 8 of the four pixels in the fifth to eighth columns of the first row are transmitted simultaneously by the signal lines 1^ to ί4. Further, the video data ~G2,4 of the four pixels of the first to fourth columns in the second row are transmitted simultaneously by the signal lines h to L4. The same is true for the following. 4 and 5 are diagrams each showing an example of an image displayed by a display device. Fig. 4 is an example of display of an image when a character is mapped. Fig. 5 is a display example of a progressive image such as a natural picture. The receiving device 10 restores the image data in time and time based on the sequence data sent from the transmitting device 20 by the four signal lines L1 to L4, and outputs the image data in synchronization with the recovered clock. To the display device. 4 and 5 are diagrams showing the restoration of the sequence data sent from all the signal lines, which is an example of display on the display device when it succeeds in the receiving device 1A. It is assumed that the sequence data based on any of the four signal lines h to L4 is restored based on some reason such as noise, and if it fails in the receiving device 1 ', then it must be performed for the signal line. Train to make it recover. During the training period after the recovery failure, the receiving device!原 The original image data cannot be obtained, and the display device cannot display the original image. In the prior art, since all of the four signal lines L and L4 are trained, the receiving apparatus cannot obtain the original video data from any of the four signal lines Li to L4. Therefore, the image displayed by the display device during the training period after the restoration failure is an image of black, white, or gray, which is -10-201132133 as shown in Fig. 6, and is completely different from the original image. Therefore, the image displayed by the display device flickers or smashes, which is a degraded image. Further, if the receiving device stops receiving the video data for all of the four signal lines 〜^^ί4, the clock output from the transmitting device cannot be restored and outputted on the receiving device. In the receiving device, since the recovery of the image data is possible after the training is completed, the clock is restored. Therefore, the image data cannot be output normally during the short period after the training is completed. Therefore, the deterioration of the image displayed by the display device becomes conspicuous. Therefore, the receiving device 1 according to the present embodiment has the configuration shown in Fig. 7 in order to solve the above problems. Fig. 7 is a block diagram showing the configuration of the receiving device 10 of the present embodiment. The receiving device 10 includes the receiving units 1 to 114 and the processing unit 11. Each of the receiving units Rn is provided corresponding to the signal line Ln, and receives the sequence data sent from the signal line Ln. Each receiving unit Rn restores the image data according to the received sequence data, and outputs the image data and time pulse when the restoration is successful. On the other hand, each receiving unit Rn outputs a restored NG signal when the restoration fails. Each of the receiving units Rn includes a restoring unit 12 and a training unit 13 . The restoring unit 1 2 included in each receiving unit Rn receives the sequence data sent by the signal line Ln, and restores the image data in time and time based on the received sequence data, and the recovery is successful. At the same time, the image data is output to the processing unit 11 in a timely manner. Further, when the restoration unit 12 fails, the restored NG signal is output to the processing unit 1 1, and the training start signal for indicating the start of training is indicated to be output to the training unit 13 . When the training unit 13 receives the training start signal from the restoration unit 12, the training unit 13 transmits a training start request to the communication device 20 via the control line Lc, based on the sequence required for the training sent from the communication device 20. Information can be restored. The training unit only performs the processing of the failed signal line. The processing unit 1 1 inputs and processes the video data streamed or restored NG signals respectively output from the receiving units R i to R4. Specifically, the processing unit 11 causes the video data output from the receiving unit Rn1 to be output to the display device 30 in synchronization with the clock output from the receiving unit Rn1 that has not output the restored NG signal. Further, when the processing unit 11 outputs the restored NG signal from any of the receiving units Rn, the processing unit 11 synchronizes the receiving unit RnQ with the clock output based on the receiving unit Rn that has not output the restored NG signal. The generated clock is output to the display device 30. The processing unit 1 1 includes a video data processing unit 1 4 and a pulse processing unit 15 . The video data processing unit 14 directly outputs the video data output from the receiving unit that has not output the restored NG signal. On the other hand, the video data processing unit 14 outputs false image data for the receiving unit that outputs the restored NG signal. The clock processing unit 15 directly outputs the clock output from the receiving unit that has not output the restored NG signal. On the other hand, the clock processing unit 15' outputs a clock generated by the clock output from the receiving unit that has not restored the NG signal, for the receiving unit that outputs the restored NG signal. The receiving device 10' outputs the video data output from the video data processing unit to the display device 30 in synchronization with the time -12-201132133 pulsed from the clock processing unit 15. Next, the details of the processing in the video data processing unit 14 will be described in more detail. The following is a description of the restoration of the sequence data sent by the second signal line «L2 of the four signal lines L, L4, which is the image data processing when it fails in the receiving unit R2 of the receiving device 1 The processing content of the section 14. 8 to 11 are diagrams showing examples of images displayed by the display device 30 based on the image data processed by the image data processing unit 14 of the receiving device 1A. In the example of the video shown in FIG. 8, when the original image shown in FIG. 4 fails to be restored in the receiving unit R2, the first column, the third column, the fourth column, the fifth column, and the The image data of each pixel in each of the 7th column and the 8th column is used as the image data obtained by the restoration, and the image data G1, 2 to G8, 2 of the 8 pixels in the second column which failed to be restored and 8 of the 6th column are restored. The pixel image data Gli6~Gs,6 is set as false image data. In the example of the video shown in FIG. 9, when the original image shown in FIG. 5 fails to be restored in the receiving unit R2, the first column, the third column, the fourth column, the fifth column, and the The image data of each pixel of each of the 7th column and the 8th column is used as the image data obtained by the restoration, and the image data of the 8 pixels of the second column in the second column of the failure is restored, Gu, G8, 2 and 8 pixels of the sixth column. The image data <31>6~G8,6 is set as false image data. The image (Fig. 8 and Fig. 9) displayed by the display device 30 based on the image data output from the receiving device 10 according to the present embodiment is different from the original image (Figs. 4 and 5). The display time is only slightly reduced in the period until the recovery -13-201132133 becomes possible. Therefore, the image degradation is greatly reduced in the present embodiment as compared with the case of the prior art which does not show the image as shown in Fig. 6. Then, once the training for the signal line L2 is completed and the image is restored, the image data of the original image (Fig. 4, Fig. 5) < is acquired by the receiving device 10. The false image data of each of the pixels in the second column and the sixth column in each of Figs. 8 and 9 can also be prepared in advance. It is desirable that the false image data is as unobtrusive as possible when displayed on the display device 30, for example, black with low brightness or if the color used by other pixels is white. In the example of the video shown in FIG. 10, when the original image shown in FIG. 4 fails to be restored in the receiving unit R2, the first column, the third column, and the fourth column 'the fifth column and the The image data of each pixel of each of the 7th column and the 8th column is used as the image data obtained by the restoration, and the image data of the 8 pixels in the second column of the failed column is restored to G8, 8 and 8 pixels of the 6th column. The image data Gi, e to Gs, δ are set as false image data generated by interpolation based on image data of two or more adjacent pixels. In the example of the image shown in FIG. 1 ', when the original image shown in FIG. 5 fails to be restored in the receiving unit R2, the first column, the third column, the fourth column, and the fifth column which are successfully restored are restored. The image data of each pixel in the seventh column and the eighth column is used as the image data obtained by the restoration, and the image data G1, 2 to G8, 2 of the 8th pixel in the second column which has failed to be restored, and 8 of the sixth column are restored. The image data 〇1>6 to G8,6 of the pixels are set as false image data generated by interpolation based on image data of two or more adjacent pixels. "14- 201132133 Here, the 'false image data Gi, 2' is generated by interpolation based on the image data Gi, !, Gi, 3 of the two adjacent pixels. Further, the false image data Gi>6 is generated by interpolation based on the image data Gi, 5, Gi, 7 of two pixels adjacent to each other. At this time, the image (Fig. 10, Fig. 11) displayed by the display device 30 based on the image data output from the receiving device 10 according to the present embodiment is the same as the image of the previous example (Fig. 8, Fig. 8). 9) Comparison is closer to the original image (Figure 4, Figure 5). In particular, the image of the natural screen shown in Fig. 11 is roughly equivalent to the original image shown in Fig. 5. Therefore, even if the image of Fig. 10 and Fig. 11 is displayed by the display device 30 during the period of training after the restoration failure, the display image does not appear to be perceived to have image deterioration. The false image data of each of the pixels in the second column and the sixth column in each of FIG. 10 and FIG. 11 can be generated by interpolation only based on the image data of two pixels adjacent to each other, or based on The image data of two pixels adjacent to the left and right but generated by the interpolation may be generated by interpolation, or may be generated by interpolation based on image data of pixels that are not diagonally adjacent to the left and right pixels. . Further, when the respective pixels and the signal line Ln are corresponding to each other as shown in FIG. 12, the restoration based on the sequence data sent from the second signal line L 2 is a failure, and the false image data can be used. The image data of 2 pixels, the image data of 2 pixels above and below, and the image data of 4 pixels obliquely are generated. Even the algorithm for generating false image data is not only linear interpolation but also can be interpolated twice. The interpolation method is not limited to -15-201132133. The receiving device 10 according to the present embodiment can continuously restore the clock based on the sequence data sent from the transmitting device 20 via the signal line Ln, thereby avoiding the fact that the clock is not delivered to the display device 30. The image is degraded. Therefore, when the interpolated image different from the original image is displayed by the display device 30, only the minimum time for training is required, and thus the deterioration of the image quality is minimized. Further, in the present embodiment, although the number N of signal lines for transmitting sequence data from the transmitting device 20 to the receiving device 1 is set to four, in the present invention, the number N of signal lines may be two or more. number. [Possibility of industrial use] It is applicable to the use of image deterioration when image data restoration failure in a receiving device is suppressed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing a schematic configuration of a communication system 1 including a receiving device 10 and a transmitting device 20 according to the present embodiment. Fig. 2 is a diagram showing an example of mapping of images transmitted from the transmitting device 20 to the receiving device. Fig. 3 is an explanatory diagram showing the sequence of image data sent from the transmitting device 20 to the receiving device 1; Fig. 4 is a view showing a first example of an image displayed by a display device. -16- 201132133 [Fig. 5] Fig. 5 is a diagram showing a second example of an image displayed by a display device. Fig. 6 is a view showing an example of an image displayed by a display device when the image data device fails to be restored in the prior art. Fig. 7 is a block diagram showing the configuration of the receiving device 10 according to the present embodiment. Fig. 8 is a view showing an example of an image displayed by the display device 30 based on the image data processed in the image data processing unit 收 of the receiving device 1A. [Fig. 9] Fig. 9 is a diagram showing an example of an image displayed by the display device 30 based on the image data processed by the image data processing unit 14 of the receiving device. Fig. 10 is a view showing an example of an image displayed by the display device 30 based on the image data processed by the image data processing unit 14 of the receiving device 1A. Fig. 11 is a view showing an example of an image displayed by the display device 3 based on the image data processed by the image data processing unit 14 of the receiving device 10. Fig. 12 is a view showing another example of mapping of images transmitted from the transmitting device 2 to the receiving device 1 . [Main component symbol description] 1 : Communication system 1 〇 : Receiving device -17- 201132133
Ri〜R4 :收訊部 1 1 :處理部 1 2 :復原部 1 3 :訓練部 1 4 :影像資料處理部 1 5 :時脈處理部 20 :送訊裝置 30 :顯示裝置 L 1〜L n :訊號線 L c :控制線 -18-Ri to R4: receiving unit 1 1 : processing unit 1 2 : restoring unit 1 3 : training unit 1 4 : video data processing unit 1 5 : clock processing unit 20 : transmitting device 30 : display device L 1 to L n : Signal line L c : Control line -18-