200527335 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種顯示系統，以及特別是有關於一種 位於百貨公司或其它零售店中之貨架電視（s h e 1 f Τ V )，以 及可在該貨架電視上顯示廣告資料，以吸引顧客購買在該 貨架電視附近所出售之產品。 【先前技術】 用以顯示廣告資料等資訊之系統係已知的。通常，這些 系統為昂貴且複雜的系統，其從一遠端位置提供廣告資料 到一些不同顯示單元，其中該等顯示單元可以位於百貨公 司或其它零售店。通常，廣告資料從該遠端位置經由一通 信連結（可以是一專屬線）提供至伺服器，該等伺服器可以 控制在一百貨公司中之一顯示單元或一組顯示單元。該伺 服器依序下載廣告資料，以顯示於該裝置上。通常，該廣 告資料以一循環方式持續地播放。 此型態之系統具有一些缺點。第一缺點為該系統之成 本。因為需提供一遠端位置及伺服器，以控制多組之單元， 所以明顯具有南的成本。 另一缺點在於：因為該廣告資料一般係以循環方式來播 放，所以它會對顧客造成”背景噪音π，其或許不會特別吸 引顧客對該廣告資料之注意。再者，因為該廣告資料係以 循環方式來播放，所以一顧客可能在該廣告播放一半時才 出現在該廣告資料面前，因而可能無法獲得所需之訊息。 【發明内容】 5 312ΧΡ/發明說明書(補件)/94-04/93 139058 200527335 本發明之目的在於提供一種顯示系統，其非常可能吸引 人的注意來觀看顯示在該顯示系統上之資訊。 因此，本發明可以說是關於一種顯示系統，其包括： 一資料媒體，用以容納該系統所要顯示之資料； 一顯示螢幕，用以顯示該資料；以及 一近距離感測器（p r ο X i m i t y s e n s〇r )，用以偵測在該 顯示系統附近之人的出現，以及用以啟動該系統以促使該 資料顯示於該顯示螢幕上。 因為該近距離感測器偵測在該顯示系統附近之人的出 現，以及當人靠近該系統時會開始該資料（例如：廣告），所 以人非常可能被該資料之顯示所吸引及觀看該顯示。再 者，因為當人靠近時開始該資料之顯示，所以人會觀看整 個訊息及因而受該資料之完全影響。因此，因為當使用該 系統來廣告產品時，該系統非常可能吸引顧客之注意及確 保該顧客接收該廣告之全部，所以該顧客非常可能被吸 引，以購買在該顯示系統之位置所出售之產品。 最好，使該資料媒體及該顯示螢幕形成作為一電視監視 器。 最好，該監視器包括安裝手段，用以將該監視器安裝在 一商店之一架子上。 在一具體例中，該資料媒體可包括一用以容納資料之光 碟、一快閃記憶體儲存裝置、磁帶等。 在一典型具體例中，該系統亦包括傳統控制電路，用以 從該資料媒體讀取資料及用以顯示該資料於該顯示裝置之 6 312XP/發明說明書(補件)/94-04/93139058 200527335 螢幕上。 在本發明之一較佳具體例中，該系統進一步包括至少一 揚聲器，用以輸出聲頻資料；以及一高至低音量控制器，用 以將該聲頻輸出之音量從一相對高音量改變至一相對低音 量，以表示有人靠近該系統。 最佳是在一預定期間或用以回應人較靠近該系統時，使 該音量從該相對高音量改變至該相對低音量，藉此提供一 音量位準，其係位於一與人離該系統之距離有關的舒適位 準 。 最好，該近距離感測器包括一光感測器。然而，亦可使 用其它形式之近距離感測器，例如：移動偵測器、雷達型偵 測器、熱偵測器等。 最佳是該光感測器係一光敏電阻器。 最好，該感測器操作一開關組件，轉而操作一繼電器， 以促使電源供應至該系統，以啟動該系統顯示該資料。 在一具體例中，該感測器係以並聯方式連接至一電源， 用以供應電流至一第一電晶體，一第二電晶體以並聯方式 連接至該電源及以串聯方式連接至該繼電器，而該第一電 晶體亦連接至該電源，以便當該感測器接收光線時，將電 流供應至該第一電晶體以導通該第一電晶體，以致於不會 將電流供應至該第二電晶體，以及當該感測器幾乎沒有接 收到光線（表示人靠近該系統）時，關閉該第一電晶體，轉 而將電流供應至該第二電晶體以導通該第二電晶體，進而 啟動該繼電器關閉一繼電器開關，因而將電源供應至該系 7 312XP/發明說明書(補件)/94-04/93139058 200527335 統，以促使該資料媒體輸出用以顯示在該顯示螢幕上 料。 在一具體例中，該系統包括一計時器電路，用以在 定期間維持對該系統之電源以保持該顯示。 在一具體例中，該音量控制器包括一信號分割器， 號分割器係連接至一放大器輸入端，用以供應該聲頻 至該至少一揚聲器，該分割器亦連接至一電晶體，一 元件連接至該電晶體，以便當該充電元件充電時，該 體會慢慢導通，以便促使該信號分割器減少供應至該 器之信號量，進而減少從該至少一揚聲器輸出之聲頻 的音量。 在一具體例中，該音量控制器包括一計時器，其用 定該充電裝置充電及因而導通該電晶體之期間，藉以 該音量從該相對高音量改變至該相對低音量之期間。 最好，該充電元件係一電容器。 在另一具體例中，該近距離感測器係連接至一運算 器部區段，當偵測到人時，該運算放大器區段從該感 接收一輸出，一窗形比較器用以接收該放大器區段之 及用以產生一控制輸出；以及一計時器電路，用以接收 制輸出及用以提供一啟動輸出以啟動該資料媒體，用 使該顯示螢幕顯示及播放該資料，以及在該計時器電 設定之一預定時間延遲之後，關閉該資料媒體，藉以 該資料在該顯示螢幕及該揚聲器之顯示及播放。 在上述本發明之具體例中，來自該計時器電路之啟 312XP/發明說明書(補件)/94-04/93139058 之資 一預 該信 信號 充電 電晶 放大 資料 以設 設定 放大 測器 輸出 該控 以促 路所 停止 動信 8 200527335 號亦啟動一衰減計時器電路，用以在一期間衰減該聲頻資 料之音量。 最好，該衰減電路包括一電容器及一 M0SFET電晶體， 該M 0SFET電晶體耦接至一可變電阻器，該可變電阻器具有 一用以接收該聲頻資料之輸入端及一用以供應該聲頻資料 至該揚聲器之輸出端，以及其中一旦充電該電容器，會開 始緩慢地使該Μ 0 S F Ε Τ導通，以便使該可變電阻器接地，藉 以造成供應至該可變電阻器之輸出的聲頻信號衰減。 第二本發明係有關於設定從該系統輸出之聲頻資料的 音量位準。 本發明亦可以說是關於一種顯示系統，其包括： 一資料媒體，用以容納該系統所要顯示及播放之視訊資 料及聲頻資料； 一顯示螢幕及至少一揚聲器，用以顯示及播放該資料； 以及 一近距離感測器，用以偵測在該顯示系統附近之人的出 現及用以調整該至少一揚聲器所輸出之聲頻資料的音量。 因此，依據本發明，可調整該音量，以便當人靠近該系 統以觀看該顯示之細節時，提供一適當音量位準。 最好，使該資料媒體及該顯示螢幕形成作為一電視監視 器。 最好，該監視器包括安裝手段，用以將該監.視器安裝在 一商店之一架子上。 在一具體例中，該資料媒體可包括一用以容納資料之光 9 312ΧΡ/發明說明書(補件)/94-04/93139058 200527335 碟、一快閃記憶體儲存裝置、磁帶等。 在一典型具體例中，該系統亦包括傳統控制電路，用以 從該資料媒體讀取資料及用以顯示該視訊資料於該顯示裝 置之螢幕上及在該至少一揚聲器上播放該聲頻資料。 在本發明之一較佳具體例中，該近距離感測器促使一計 時器之啟動，以在一預定期間減少該音量，以便在假設該 預定期間人將會較靠近該系統的情況下調整該音量。 在一具體例中，該近距離感測器包括一光感測器，例如： 一光偵測電阻器（light detecting resistor)。 在另一具體例中，該近距離感測器包括一紅外線移動感 測器，當人靠近該紅外線移動感測器時，該紅外線移動感 測器會由人體所產生之熱所啟動。 然而，亦可使用其它形式之近距離感測器，例如：移動 偵測器、雷達型偵測器等。 在一具體例中，該感測器操作一開關組件，轉而操作一 繼電器，以促使電源供應至該系統，以啟動該系統顯示該 資料。 本發明亦可以說是關於一種用以廣播一廣告之廣告裝 置，其包括： 一資料媒體，用以容納有關於廣告之資料，該資料包括 聲頻資料； 至少一揚聲器，用以輸出該聲頻資料； 一音量設定控制器，用以初始設定該揚聲器之聲頻資料 廣播的音量至一相對高音量，以及然後減少該音量至一相 10 3】2XP/發明說明書(補件)/94-(M/93139058 200527335 對低音量。 因此，可提供該初始高音量，以吸引離該裝置有一些距 離的人，以及然後在假設人將靠近該廣告裝置的情況下減 少該音量，以便提供一舒適音量。 最好，該裝置包括一近距離感測器，用以偵測在該裝置 附近之人的出現及用以促使該資料媒體提供該單元所要廣 播之資料。 最好，該系統包括一顯示螢幕，以及該資料包括用以顯 示於該顯示螢幕之視訊資料。 最好，使該資料媒體及該顯示螢幕形成作為一電視監視 器。 最好，該監視器包括安裝手段，用以將該監視器安裝在 一商店之一架子上。 在一具體例中，該資料媒體可包括一用以容納該資料之 光碟、一快閃記憶體儲存裝置、磁帶等。 在一具體例中，該近距離感測器包括一光感測器，例如： 一光敏電阻器。 在另一具體例中，該近距離感測器包括一紅外線移動感 測器，當該感測器附近有人出現時，該紅外線移動感測器 會由人體所產生之熱所啟動。 然而，亦可使用其它形式之近距離感測器，例如：移動 偵測器、雷達型偵測器、熱偵測器等。 最好，該感測器操作一開關組件，轉而操作一繼電器， 以促使電源供應至該系統，以啟動該系統顯示該資料。 11 312XP/發明說明書(補件)/94-04/93139058 200527335 在一具體例中，該感測器係以並聯方式連接至一電 用以供應電流至一第一電晶體，一第二電晶體以並聯 連接至該電源及以串聯方式連接至該繼電器，而該第 晶體亦連接至該電源，以便當該感測器接收光線時， 流供應至該第一電晶體以導通該第一電晶體，以致於 將電流供應至該第二電晶體，以及當該感測器幾乎沒 收到光線（表示人靠近該系統）時，關閉該第一電晶體 而將電流供應至該第二電晶體以導通該第二電晶體， 啟動該繼電器關閉一繼電器開關，因而將電源供應至 統，以促使該資料媒體輸出用以顯示在該顯示螢幕上 料。 最好，該系統包括一計時器電路，用以在一預定期 持對該系統之電源以保持該顯示。 在一具體例中，該音量控制器包括一信號分割器， 號分割器係連接至一放大器輸入端，用以供應該聲頻 至該至少一揚聲器，該分割器亦連接至一電晶體，一 元件連接至該電晶體，以便當該充電元件充電時，該 體會慢慢導通，以便促使該信號分割器減少供應至該 器之信號量，進而減少從該至少一揚聲器輸出之聲頻 的音量。 在一具體例中，該音量控制器包括一計時器，用以 該充電裝置充電及因而導通該電晶體之期間，藉以設 音量從該相對高音量改變至該相對低音量之期間。 最好，該充電元件係一電容器。 312ΧΡ/發明說明書(補件)/94-04/93139058 源， 方式 一電 將電 不會 有接 ，轉 進而 該乐 之資 間維 該信 信號 充電 電晶 放大 資料 >n- δ又疋 定該 12 200527335 在另一具體例中，該近距離感測器係連接至一運算放大 器區段，當偵測到人時，該運算放大器區段從該感測器接 收一輸出，一窗形比較器用以接收該放大器區段之輸出及 用以產生一控制輸出，一計時器電路用以接收該控制輸出 及用以提供一啟動輸出以啟動該資料媒體，用以促使該顯 示螢幕顯示及播放該資料，以及在該計時器電路所設定之 一預定時間延遲之後，關閉該資料媒體，藉以停止該資料 在該顯示螢幕及該揚聲器之顯示及播放。 在上述本發明之具體例中，來自該計時器電路之啟動信 號亦啟動一衰減計時器電路，用以在一期間衰減該聲頻資 料之音量。 最好，該衰減電路包括一電容器及一 M0SFET電晶體， 該M0SFET電晶體耦接至一可變電阻器，該可變電阻器具有 一用以接收該聲頻資料之輸入端及一用以供應該聲頻資料 至該揚聲器之輸出端，以及其中一旦充電該電容器，會開 始緩慢地使該Μ 0 S F E T導通，以便使該可變電阻器接地，藉 以促使供應至該可變電阻器之輸出的聲頻信號衰減。 最好，該資料進一步包括聲頻資料，一衰減計時器電路 用以在一期間衰減該聲頻資料之音量，以及一計時器電路 用以啟動該衰減計時器電路。 最好，該資料包括複數個分離廣告，一廣告時間電路用 以輸出一表示所要顯示之廣告的數目之信號，一開關用以 依據所要顯示之廣告的數目選擇性地切換至該廣告電路之 一輸出，以及在播放該等廣告之後，用以輸出一關閉該計 13 312ΧΡ/發明說明書(補件)/94-04/93139058 200527335 時器及進而關閉該衰減電路之信號。 最好，該開關之輸出係連接至一電晶體，該電晶體藉由 該開關之輸出來導通，以供應一預定信號至該計時器電 路，來重置該計時器電路。 最好，該衰減電路包括一電容器及一 M0SFET電晶體， 該M0SFET電晶體耦接至一可變電阻器，該可變電阻器具有 一用以接收該聲頻資料之輸入端及一用以供應該聲頻資料 至該揚聲器之輸出端，以及其中一旦充電該電容器，會開 始緩慢地使該M0SFET導通，以便使該可變電阻器接地，藉 以造成供應至該可變電阻器之輸出的聲頻信號衰減。 【實施方式】 圖1至3顯示本發明之較佳形式的貨架電視，其係一顯 示監視器之形式，具有一可以是任何所需形狀之外殼1 2、 一用以顯示視訊資料之顯示螢幕 1 4及一用以輸出聲頻資 料之揚聲器1 6。在較佳具體例中之視訊資料及聲頻資料包 括用以廣告商品之廣告。如圖3所示，該外殼1 2包括位於 其後面之安裝釘（in 〇 u n t i n g s t u d s ) 1 8，以使該系統能安裝 在一百貨公司、商店等中之一架子上或所要出售商品之附 近。 應該可了解到該等釘 1 8僅表示一種將該單元安裝在一 架子等之形式，顯然亦可使用托架、連接器等之其它形式。 該系統亦包括一近距離偵測器 2 0，用以偵測人（例如： 所期待之顧客）靠近該顯示系統，以便可啟動該顯示系統， 以顯示有關於靠近該顯示系統之產品的廣告訊息。該廣告 14 3 12XP/發明說明書(補件)/94-04/93139058 200527335 訊息意欲吸引顧客及提供有關於該等產品之資訊，以便使 顧客更有可能購買該等產品。 該近距離感測器 2 0偵測到在該系統附近之人的出現， 進而啟動該系統，以便該系統以視覺廣告形式將該廣告訊 息呈現在該顯示螢幕1 4上，並且伴隨該揚聲器1 6之聲頻 輸出。因為該廣告只在人移動至該系統附近時才開始播 放，所以相較於持續不斷顯示廣告而不太可能立刻吸引人 的注意而言，該廣告更有可能立即吸引人的注意。因此， 更有可能使人注意廣告。再者，由於廣告從頭開始播放， 故，人具有可觀看整個廣告之機會，以便提供有關於所要出 售之產品的完整訊息，藉以增加人購買這些產品的可能性。 圖4係該系統之整個方塊圖。為清楚說明起見，圖5及 6以較大尺度顯示圖4之方塊圖的不同部分。該系統具有 一偵測器區段3 0、一高至低音量控制器4 0、一視訊及聲頻 控制區段5 0及一視訊顯示及聲頻輸出區段6 0。該區段6 0 基本上係由前述之顯示器1 4及揚聲器1 6以及其一般傳統 控制電路所構成，在此將不會對該傳統控制電路作任何詳 細說明。該視訊及聲頻控制區段5 0包括儲存有廣告資料之 媒體（例如：快閃記憶卡、光碟、磁帶或任何其它合適儲存 媒體）及用以讀取該資料及供應該資料成為一視訊信號及 一聲頻信號至該區段6 0之控制電路。再次，有關其細節係 屬於傳統技術，因而將不會在此作進一步詳細描述。 該區段3 0啟動該區段5 0及6 0，以回應人對該系統之靠 近，以及包括一電源7 0 (例如：1 2伏特電源），用以供應電 15 312XP/發明說明書(補件)/94-04/9313 905 8 200527335 源至該區段3 0。一光敏電阻器7 1以並聯方式連接至該電 源7 0，以及一可變電阻器7 2以串聯方式與該電阻器71連 接，以調整該電阻器7 1之敏感度。一電晶體7 3連接於該 可變電阻器7 2與該電阻器7 1之間。該電晶體7 3之集極連 接至線7 4及亦經由一電阻器7 9連接至該電源7 0。該線7 4 包含一二極體75及一第二可變電阻器76。一電容器77連 接至該電阻器7 6及另一電阻器7 8亦連接至該電容器7 7 及電阻器7 6。該電阻器7 8連接至一第二電晶體8 0，該第 二電晶體8 0之集極經由線8 1連接至一繼電器9 0。該繼電 器9 0連接至該電源7 0及包括一二極體9 1及一開關9 2。 該開關9 2在關閉時將電源從該電源7 0供應至區段5 0，以 啟動及操作該區段5 0。 當光線之持續強度落在該電阻器71時，電流依據設定 及該可變電阻器7 2而定會流經該電阻器71。因此，導通 該電晶體7 3，以及電流會流經線9 2 a。此進而導致該電晶 體8 0之關閉，因而無電流流經該繼電器9 0。因此，該繼 電器開關9 2會保持打開。 然而，如果例如由人從如2公尺之距離靠近該系統而阻 絕照射至該電阻器7 1之光線，則該電阻器7 1不導通及無 法偏壓該電晶體7 3，進而使該電晶體7 3關閉。於是，經 由該二極體7 5、該可變電阻器7 6及該電阻器7 8使該電晶 體8 0順向偏壓，以便電流會流經該繼電器9 0及使該繼電 器開關 9 2關閉。因此，藉由該開關9 2將電源經由線 9 3 供應至該區段5 0，藉以啟動該區段5 0及促使該區段6 0讀 312XP/發明說明書(補件)/94-04/93139058 16 200527335 取及顯示該區段5 0中所儲存之視訊及聲頻資訊。 該第二可變電阻器7 6設定使該繼電器9 0保持導通之時 間。當光線再次照射該電阻器7 1時（例如：當人離開該系統 時），將切斷該繼電器9 0及關閉至該區段5 0之電源。 如圖4所示，該區段5 0具有視訊輸出線1 0 0直接連接 至該區段6 0。來自該區段5 0之聲頻輸出線1 0 1則連接至 該區段4 0，以便依據人離該系統之距離來調整音量。 從圖4可明顯知道，該線1 0 1連接至一可變電阻器1 0 2， 以及該可變電阻器1 0 2連接至一放大器信號輸入端1 0 3， 該放大器信號輸入端1 0 3轉而連接至該顯示區段6 0。該聲 頻信號通過該區段4 0而到達該放大器1 0 3，然後到達區段 6 0，以經由如上所述之揚聲器1 6輸出。 當如上所述先將電源供應至區段5 0時，該電晶體7 3處 於關閉狀態，以及該區段4 0之點 A為浮接及來自該區段 5 0之聲頻會經由該可變電阻器1 0 2直接到該放大器1 0 3。 電容器1 0 3 a以可變電阻器1 0 4所設定之充電時間緩慢地充 電，其中該可變電阻器1 0 4經由二極體1 0 5及電阻器1 0 6 連接至電晶體1 07。M0SFET電晶體1 07會慢慢導通，以有 效地使該可變電阻器1 0 2之點A接地。然後，部分信號會 通過線 1 0 9而到達接地，而非到達該放大器1 0 3，藉以減 少該信號及進而減少該音量。最後所需聲頻位準可由該可 變電阻器1 0 2來設定。 當關閉及然後打開至該區段 5 0之電源時，可重複上述 循環。因此，當打開該電源時，會將整個聲頻信號供應至 17 312XP/發明說明書(補件)/94-04/9313905 8 200527335 該區段6 0，以及之後在一期間將減少聲頻音量供應至該區 段6 0，藉以減少該揚聲器1 6所輸出之音量位準。該繼電 器9 0包括繼電器開關9 5及9 6，其在沒有供應電源時用以 經由線1 1 1及1 1 2放電該電容器1 0 3 a。因此，當再次將該 電源供應至該區段5 0時，此可確保重複時間延遲。 圖7顯示本發明之另一具體例。 參考圖 7 ， 提供一熱電紅外線移動感測器 (pyrol-electric infrared motion sensor)150，以偵測 人之靠近。當人經過該感測器1 5 0時，該感測器1 5 0會偵 測到人體所產生之熱及產生一約8赫茲之低頻率信號。此 會促使一視訊顯示之開始。藉由線1 5 2將該感測器1 5 0之 輸出饋入該放大器1 5 1之非反相輸入端。該放大器1 5 1亦 連接至一帶通濾波器，其中該帶通濾波器係由電容器 1 5 3、電阻器1 5 4、電容器1 5 5及電阻器1 5 6所構成。該帶 通濾波器具有約8赫茲之頻寬。該放大器1 51提供約3 0 分貝之增益。該放大器1 51之輸出經由電容器1 6 1及電阻 器1 6 2耦接至一放大器1 6 0。一帶通濾波器1 6 4係以相似 於上述帶通濾波器之方式所形成，以及該放大器1 6 0提供 另一 3 0分貝之增益。 該放大器1 6 0之輸出連接至電容器1 6 7，該電容器1 6 7 轉而將來自該放大器 1 6 0之信號饋入一由比較器 1 6 9及 170 所形成之窗形比較器電路（window comparator c i r c u i t) 1 6 8。對該反相輸入端1 7 1而言，將該窗形比較器 168之窗形電壓（windowvoltage)設定為約3伏特；對該非 18 312XP/發明說明書(補件)/94-04/93139058 200527335 反相輸入端1 7 2而言，將其設定為約1 . 7伏特。 當偵測到人體所產生之熱時，該放大器1 6 0將產生一電 壓輸出至該電容器 1 6 7。此電壓窗形以外之任何電壓擺動 將使該比較器1 6 9之輸出端1 7 3變低，此將經由線1 8 1來 觸發一計時器電路1 8 0。該線1 8 1連接於二極體1 8 2與1 8 3 之間，以便該等比較器1 6 9及1 7 0之輸出彼此隔離。該計 時器1 8 0之延遲時間係由可變電阻器1 8 5及電容器1 8 6來 設定。例如：該延遲時間可以是約1分鐘。該延遲時間可藉 由調整該可變電阻器1 8 5來調整。當藉由該線1 8 1上之信 號來觸發該計時器1 8 0時，輸出端1 8 7變高，以啟動繼電 器1 8 8。此造成接點1 8 9關閉，以便從電源1 9 1將電源供 應至線1 9 2，然後經由輸出端1 9 3供應至圖4所示之多媒 體電路板（m u 1 t i m e d i a b 〇 a r d )。使該接點1 9 0打開，以使 電容器1 9 5能經由電阻器1 9 6及1 9 7充電。該電阻器1 9 6 設定M0SFET 198導通之時間。在該M0SFET 198導通前， 將該聲頻信號從聲頻入端2 0 0供應至可變電阻器1 9 9，然 後以相同於上述具體例中從該信號放大器1 0 3供應該聲頻 輸入之方式經由滑動接點2 0 1供應該聲頻輸入。 當該電容器1 9 5充電至一足夠高之電位以緩慢地導通該 Μ 0 S F E T 1 9 8時，會使該可變電阻器1 9 9有效接地及衰減該 聲頻信號。因此，一旦偵測到人而立即開始之初始聲頻信 號係由該可變電阻器1 9 9來設定，以及該電容器1 9 5充電 時，會在假設人將靠近該電視之情況下衰減該聲頻信號， 以及當人較靠近時，會衰減聲音的音量，以便會在人接近 19 3 12ΧΡ/發明說明書(補件)/94-04/93丨39058 200527335 該電視1 2 (如圖1所示）時產生一舒適音量。 當該計時器1 8 0計時結束時，切斷該繼電 打開該接點 1 8 9。因此，會切斷從該線1 9 1 路板的電源’以結束該視訊顯示循環。關閉 以使該電容器1 9 5經由線2 0 2放電，藉此預 之聲頻位準控制。 電源電路2 0 5接收1 2伏特輸入電源及將其 伏特輸出至線2 0 6上，用以經由線2 0 7供電 器1 8 0及提供一電壓源至該可變電阻器1 8 5 源亦供應至線2 0 8，用以經由電阻器2 0 9及 及線2 1 1 (包括電阻器2 1 2、2 1 3及2 1 4 )及線 器2 1 6及2 1 7 )操作該感測器1 5 0及該等比較 圖8顯示本發明之又一具體例，其中相同 相同於圖7所述之部分。 在圖8之具體例中，感測器3 0 0係一熱電 測器積體電路。該感測器3 0 0包括一被動紅 放大器及一比較器輸出電路。當人經過該感 該感測器會偵測到人體所產生之熱及產生一 該低頻率信號由該感測器3 0 0中之積體電路 將該信號饋入該感測器3 0 0中之比較器電路 較器電路輸出變高，以及將線3 0 1上之高輸 電晶體3 0 2，以導通該電晶體3 0 2，以便使線 壓。該線3 0 3上之低信號經由線3 0 4觸發計 此具體例中，電阻器1 8 5是不可變的，以及 312XP/發明說明書(補件)/94-04/93139058 器1 8 8，以便 至該多媒體電 該接點 1 9 0， 備下一次循環 轉換成為一 5 以控制該計時 。該5伏特電 電容器2 1 0以 2 1 5 (包括電阻 器 1 6 9 及 1 7 0。 元件符號表示 紅外線移動感 外線元件、一 測器300時， 低頻率信號， 所放大，以及 。此促使該比 出信號供應至 3 0 3變成低電 時器1 8 0。在 電阻器1 8 5與 20 200527335 電容器1 8 6 —起構成延遲時間。該計時器1 8 0以相同於 前具體例之方式來操作繼電器 1 8 8，以便以相同於前述 式在連接端1 9 3、2 0 0及2 0 1上供應輸出。 當開始播放一媒體檔案時，來自該多媒體記憶卡之 3 1 0變成高電壓，以導通電晶體3 1 1。此會使積體電路3 之接腳3 1 2維持低電壓。一旦完成一媒體檔案之播放， 線3 1 0改變狀態，以將該線3 1 2拉至高電壓。將該電路3 之主動輸出經由指撥開關（d i p s w i t c h ) 3 1 4供應至電晶 3 1 5，以導通該電晶體3 1 5。此進而會導致線3 1 6變成低 壓，該低電壓切斷經由線1 8 1供應至該計時器的電源， 重置該計時器，以及切斷至該媒體播放器之電源。 在切斷前，該開關3 1 4允許播放最大四個媒體檔案。 容器3 1 7引入一延遲，以防止一錯誤再觸發動作。如先 所述，當該計時器1 8 0已結束計時時，該繼電器改變狀態 以及打開接點A及B以切斷經由線1 9 2至該媒體記憶卡 電源。此結束該視訊顯示。關閉該繼電器之接點 190， 放電該電容器1 9 5，以便預備下一循環之聲頻位準控制 該指撥開關3 1 4允許播放單一廣告、兩個廣告、三個 告或四個廣告。如圖8中之數字1、2、3及4所示，以 動方式將該指撥開關設定至圖8所示之位置中之一，以 播放一個、兩個、三個或四個廣告。在圖8所示之位置上 將播放一個廣告。如果調整該指撥開關3 1 4至圖8中之 置4，則可播放4個廣告。 該計時器1 8 0之工作時間可藉由在該線1 8 1上之電源 312XP/發明說明書(補件)/9104/93139058 先 方 線 13 該 13 體 電 以 電 前 ? 之 以 〇 廣 手 便 位 及 21 200527335 R - C電路（由電阻器1 8 5與電容器1 8 6所形成）來設 如：該工作時間可設定為最大5分鐘，以符合任何長 告（例如：產品展示等）。 在每一廣告結束時，該電路3 1 3輸出一高信號至 之對應主動接腳 1 - 4。每一次只有一接腳係有作用 由該指撥開關設定，可在該指撥開關3 1 4所設定之 收一高電壓輸出。此將使該電晶體3 1 5導通，以及使 變成低電壓。該線3 0 6上之低電壓將重置該計時器 藉以鬆開該繼電器1 8 8。然後，該系統進入一等待4 當打開該繼電器接點1 8 9，不再經由線3 2 0將電 至電路3 2 1及然後至該媒體播放器輸入端3 2 2。 在圖8之具體例中，該繼電器1 8 8以並聯方式連 電阻器3 5 1及一發光二極體3 5 2，以顯示該計時器 狀態，亦即，該發光二極體與該繼電器同時接收來 時器1 8 0之電源供應，因而在該計時器1 8 0供應電 繼電器1 8 8時，會使該發光二極體發光。 在下面所附申請專利範圍及本發明之前述說明中 文因表達語言或必要暗示所要求外，在包含文字 (comprise)’1 及其變化時式（丨'comprises ’丨或 n compri 係用於包含意思中，亦即用以指定所述結構之存在 並未排除在本發明之不同具體例中有另外結構之存 入 ° 因為熟習該項技藝者可容易地在本發明之精神 内實施修飾，所以可了解到本發明並不侷限於由上 312XP/發明說明書(補件)/94-04/93139058 定。例 度之廣 圖8中 的。經 接腳接 線3 0 6 180， 莫式。 源供應 接至一 351之 自該計 源至該 ，除本 π包括 sing”） ，然而 在或加 及範圍 述範例 22 200527335 所描述之特定具體例。 【圖式簡單說明】 圖1係依據較佳實施例之一貨架電視形式的顯示系統之 正視圖。 圖2係圖1之系統的底部透視圖。 圖3係圖1之系統的後視圖。 圖4係依據一具體例之顯示系統的方塊電路圖。 圖 5係圖 4之方塊圖的部分詳細圖式。 圖6係圖4之方塊圖的部分詳細圖式。 圖7係本發明之另一具體例的電路圖。 圖8係最佳具體例的電路圖。 【主要元件符號說明】 12 外 殼 14 顯 示 螢 幕 16 揚 聲 器 18 安 裝 釘 20 近 距 離 偵 測 器 30 偵 測 器 區 段 4 0 高 至 低 音 量 控 制 器 50 聲 頻 控 制 區 段 60 視 訊 顯 示 及 聲 頻 輸出區段 70 電 源 71 光 敏 電 阻 器 72 可 變 電 阻 器 312XP/發明說明書(補件)/94-04/93139058 23 200527335 73 電 晶 體 74 線 75 二 極 體 76 第 二 可 變 電阻器 77 電 容 器 78 電 阻 器 79 電 阻 器 80 第 二 電 晶 體 81 線 90 繼 電 器 91 二 極 體 92 開 關 92a 線 93 線 95 繼 電 器 開 關 96 繼 電 器 開 關 100 視 訊 輸 出 線 10 1 線 102 可 變 電 阻 器 103 放 大 器 103a 電 容 器 104 可 變 電 阻 器 105 二 極 體 106 電 阻 器 312XP/發明說明書(補件)/94-04/93139058 24 200527335 1 07 電 晶 體 10 9 線 111 線 112 線 1 50 感 測 器 151 放 大 器 1 52 線 1 53 電 容 器 1 54 電 阻 器 155 電 容 器 1 56 電 阻 器 160 放 大 器 16 1 電 容 器 162 電 阻 器 164 帶 通 濾 波 16 7 電 容 器 168 窗 形 比 較 1 69 比 較 器 170 比 較 器 17 1 反 相 輸 入 1 72 非 反 相 1 73 輸 出 端 180 計 時 器 電 181 線 器 器電路 端 入端 路 312XP/發明說明書(補件)/94-04/9313905 8 25 200527335 1 82 二極體 1 83 二極體 185 電阻器 1 86 電容器 1 87 輸出端 1 88 繼電器 189 接點 1 90 接點 1 91 電源 1 92 線 1 93 輸出端 1 95 電容器 1 96 電阻器 1 97 電阻器 1 98 MOSFET 1 99 可變電阻器 200 聲頻入端 201 滑動接點 202 線 205 電源電路 206 線 207 線 208 線 21 1 線 312XP/發明說明書(補件)/94-04/93139058 26 200527335 212 電 阻 器 213 電 阻 器 214 電 阻 器 21 5 線 21 6 電 阻 器 217 電 阻 器 300 感 測 器 301 線 302 電 晶 體 303 線 304 線 306 線 310 線 31 1 電 晶 體 312 接 腳 313 積 體 電 路 314 指 撥 開 關 315 電 晶 體 316 線 317 電 容 器 320 線 321 電 路 322 媒 體 播 放器輸入端 35 1 電 阻 器 312XP/發明說明書(補件)/94-04/9313905 8 27 200527335 3 5 2 發光二極體200527335 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a display system, and in particular to a shelf TV (she 1 f VT) located in a department store or other retail store, and can be used in Advertising information is displayed on the shelf TV to attract customers to purchase products sold near the shelf TV. [Prior art] A system for displaying information such as advertisement data is known. Generally, these systems are expensive and complex systems that provide advertising materials from a remote location to a number of different display units, which may be located in department stores or other retail stores. Generally, the advertisement data is provided from the remote location to a server via a communication link (which can be a dedicated line), and these servers can control a display unit or a group of display units in a department store. The server sequentially downloads advertising materials for display on the device. Usually, the advertisement material is continuously played in a loop manner. This type of system has some disadvantages. The first disadvantage is the cost of the system. Because a remote location and a server are required to control multiple groups of units, there is a significant cost. Another disadvantage is that because the advertising material is generally played in a loop, it will cause "background noise π" to customers, which may not particularly attract customers' attention to the advertising material. Moreover, because the advertising material is Play in a circular manner, so a customer may not appear in front of the advertisement material until the advertisement is played halfway, and may not be able to obtain the required information. [Summary of the Invention] 5 312 XP / Invention Specification (Supplement) / 94-04 / 93 139058 200527335 The object of the present invention is to provide a display system which is very likely to attract attention to view the information displayed on the display system. Therefore, the present invention can be said to be a display system including: a data medium To hold the data to be displayed by the system; a display screen to display the data; and a proximity sensor (pr ο X imitysens〇r) to detect the presence of people near the display system , And used to activate the system to cause the data to be displayed on the display screen. Because the proximity sensor detects The presence of people near the display system, and the information (such as advertisements) will start when people approach the system, so people are very likely to be attracted by the display of the material and watch the display. Furthermore, because when people approach At the beginning of the display of the information, one would view the entire message and therefore be completely affected by the information. Therefore, when using the system to advertise products, the system is very likely to attract the attention of the customer and ensure that the customer receives the entirety of the advertisement Therefore, the customer is likely to be attracted to purchase products sold at the position of the display system. Preferably, the data medium and the display screen are formed as a television monitor. Preferably, the monitor includes installation means, It is used to install the monitor on a shelf in a store. In a specific example, the data medium may include an optical disc to hold data, a flash memory storage device, a magnetic tape, etc. In a typical specific example In addition, the system also includes a conventional control circuit for reading data from the data medium and for displaying the data in the display. Device 6 312XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 screen. In a preferred embodiment of the present invention, the system further includes at least one speaker for outputting audio data; and up to A low volume controller is used to change the volume of the audio output from a relatively high volume to a relatively low volume to indicate that someone is approaching the system. It is best to respond to a person who is closer to the system during a predetermined period. The volume is changed from the relatively high volume to the relatively low volume, thereby providing a volume level that is located at a comfortable level related to the distance of a person from the system. Preferably, the proximity sensor includes A light sensor. However, other types of proximity sensors can also be used, such as motion detectors, radar-type detectors, thermal detectors, etc. Most preferably, the light sensor is a photoresistor. Preferably, the sensor operates a switch assembly and in turn operates a relay to cause power to be supplied to the system to activate the system to display the information. In a specific example, the sensor is connected to a power source in parallel to supply current to a first transistor, a second transistor is connected to the power source in parallel and connected to the relay in series. And the first transistor is also connected to the power source, so that when the sensor receives light, a current is supplied to the first transistor to turn on the first transistor, so that no current is supplied to the first transistor. Two transistors, and when the sensor receives almost no light (indicating that a person is near the system), turns off the first transistor, and instead supplies current to the second transistor to turn on the second transistor, The relay is then activated to close a relay switch, thereby supplying power to the system 7 312XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 system to cause the data medium output to be displayed on the display screen for feeding. In a specific example, the system includes a timer circuit to maintain power to the system for a period of time to maintain the display. In a specific example, the volume controller includes a signal divider. The number divider is connected to an amplifier input for supplying the audio to the at least one speaker. The divider is also connected to a transistor and a component. Connected to the transistor so that when the charging element is charged, the body will be slowly turned on, so as to cause the signal splitter to reduce the amount of signal supplied to the device, thereby reducing the volume of the audio output from the at least one speaker. In a specific example, the volume controller includes a timer that determines the period during which the charging device is charging and thus turning on the transistor, whereby the volume is changed from the relatively high volume to the relatively low volume. Preferably, the charging element is a capacitor. In another specific example, the proximity sensor is connected to an arithmetic unit section. When a person is detected, the operational amplifier section receives an output from the sense, and a window comparator is used to receive the The sum of the amplifier sections is used to generate a control output; and a timer circuit is used to receive a control output and to provide a start output to start the data medium, so that the display screen displays and plays the data, and After a predetermined time delay of one of the timer electrical settings, the data medium is closed, whereby the data is displayed and played on the display screen and the speaker. In the above specific example of the present invention, the information from the timer circuit 312XP / Invention Specification (Supplement) / 94-04 / 93139058 is used to pre-charge the signal signal to charge the transistor to amplify the data to set the amplifier to output the signal. Control to Promote the Road to stop. No. 8 200527335 also starts a decay timer circuit to attenuate the volume of the audio data during a period. Preferably, the attenuation circuit includes a capacitor and a MOSFET transistor, the MOSFET transistor is coupled to a variable resistor, the variable resistor has an input terminal for receiving the audio data, and a supply for the Audio data to the output of the speaker, and once the capacitor is charged, it will slowly turn on the M 0 SF Ε Τ to ground the variable resistor, thereby causing the output of the variable resistor to be Audio signal attenuation. The second invention relates to setting the volume level of audio data output from the system. The invention can also be said to be a display system, which includes: a data medium for containing video data and audio data to be displayed and played by the system; a display screen and at least one speaker for displaying and playing the data; And a proximity sensor for detecting the presence of a person near the display system and for adjusting the volume of audio data output by the at least one speaker. Therefore, according to the present invention, the volume can be adjusted so as to provide an appropriate volume level when a person approaches the system to view the details of the display. Preferably, the data medium and the display screen are formed as a television monitor. Preferably, the monitor includes mounting means for the monitor. The viewer is mounted on a shelf in a shop. In a specific example, the data medium may include a light 9 312XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 disk, a flash memory storage device, a magnetic tape, etc. In a typical embodiment, the system also includes a conventional control circuit for reading data from the data medium and for displaying the video data on the screen of the display device and playing the audio data on the at least one speaker. In a preferred embodiment of the present invention, the proximity sensor causes a timer to be activated to reduce the volume for a predetermined period so as to adjust under the assumption that a person will be closer to the system during the predetermined period. The volume. In a specific example, the proximity sensor includes a light sensor, such as: a light detecting resistor. In another specific example, the proximity sensor includes an infrared motion sensor. When a person approaches the infrared motion sensor, the infrared motion sensor is activated by the heat generated by the human body. However, other types of proximity sensors can also be used, such as motion detectors, radar-type detectors, etc. In a specific example, the sensor operates a switch assembly and in turn operates a relay to cause power to be supplied to the system to activate the system to display the information. The invention can also be said to be an advertising device for broadcasting an advertisement, which includes: a data medium for containing information about the advertisement, the information including audio data; at least one speaker for outputting the audio data; A volume setting controller for initially setting the volume of the audio data broadcast of the speaker to a relatively high volume, and then reducing the volume to a phase 10 3] 2XP / Invention Specification (Supplement) / 94- (M / 93139058 200527335 for low volume. Therefore, the initial high volume can be provided to attract people with some distance from the device, and then reduce the volume assuming people will be close to the advertising device to provide a comfortable volume. Best The device includes a proximity sensor to detect the presence of a person near the device and to cause the data medium to provide the information to be broadcast by the unit. Preferably, the system includes a display screen and the The data includes video data for display on the display screen. Preferably, the data medium and the display screen are formed as a television monitor Preferably, the monitor includes mounting means for mounting the monitor on a shelf in a store. In a specific example, the data medium may include a disc for storing the data, a flash Memory storage device, magnetic tape, etc. In a specific example, the proximity sensor includes a light sensor, such as: a photoresistor. In another specific example, the proximity sensor includes an infrared Motion sensor. When someone appears near the sensor, the infrared motion sensor will be activated by the heat generated by the human body. However, other types of proximity sensors can also be used, such as: motion detection Sensors, radar-type detectors, thermal detectors, etc. Preferably, the sensor operates a switch assembly and in turn operates a relay to cause power to be supplied to the system to activate the system to display the information. 11 312XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 In a specific example, the sensor is connected in parallel to an electricity to supply current to a first transistor, and a second transistor is connected in parallel Connect to The power supply is connected to the relay in series, and the second crystal is also connected to the power supply, so that when the sensor receives light, a current is supplied to the first transistor to turn on the first transistor, so that the current Supply to the second transistor, and when the sensor receives little light (indicating that a person is near the system), turn off the first transistor and supply current to the second transistor to turn on the second transistor The relay is activated to close a relay switch, thereby supplying power to the system, so as to cause the data medium output to be displayed on the display screen for feeding. Preferably, the system includes a timer circuit for holding for a predetermined period of time. Power to the system to maintain the display. In a specific example, the volume controller includes a signal divider, which is connected to an amplifier input for supplying the audio to the at least one speaker, the division The charger is also connected to a transistor, and an element is connected to the transistor, so that when the charging element is charged, the body will be slowly turned on to facilitate the signal division The amount of the reducing signal is supplied to, thereby reducing the volume of the sound from the speaker output of the at least one frequency. In a specific example, the volume controller includes a timer for a period during which the charging device is charged and thus the transistor is turned on, thereby setting a period during which the volume is changed from the relatively high volume to the relatively low volume. Preferably, the charging element is a capacitor. 312XP / Invention Specification (Supplement) / 94-04 / 93139058 source, the first method will not be connected to the electricity, and then transferred to the music of the information between the signal signal charging transistor amplification information > n- δ again determined The 12 200527335 In another specific example, the proximity sensor is connected to an operational amplifier section. When a person is detected, the operational amplifier section receives an output from the sensor and a window-shaped comparison. A device for receiving the output of the amplifier section and for generating a control output, a timer circuit for receiving the control output and for providing a start-up output to start the data medium to cause the display screen to display and play the Data, and after a predetermined time delay set by the timer circuit, the data medium is closed to stop the display and playback of the data on the display screen and the speaker. In the above specific example of the present invention, the start signal from the timer circuit also activates a decay timer circuit for attenuating the volume of the audio data during a period. Preferably, the attenuation circuit includes a capacitor and a MOSFET transistor, the MOSFET transistor is coupled to a variable resistor, the variable resistor has an input terminal for receiving the audio data, and an audio terminal for supplying the audio frequency. Data to the output of the speaker, and once the capacitor is charged, it will slowly turn on the M 0 SFET to ground the variable resistor, thereby causing the audio signal supplied to the variable resistor to be attenuated. . Preferably, the data further includes audio data, an attenuation timer circuit for attenuating the volume of the audio data during a period, and a timer circuit for activating the attenuation timer circuit. Preferably, the data includes a plurality of separate advertisements, an advertisement time circuit for outputting a signal indicating the number of advertisements to be displayed, and a switch for selectively switching to one of the advertisement circuits according to the number of advertisements to be displayed. Output, and after playing the advertisements, it is used to output a signal to close the meter 13 312XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 and then close the attenuation circuit. Preferably, the output of the switch is connected to a transistor, and the transistor is turned on by the output of the switch to supply a predetermined signal to the timer circuit to reset the timer circuit. Preferably, the attenuation circuit includes a capacitor and a MOSFET transistor, the MOSFET transistor is coupled to a variable resistor, the variable resistor has an input terminal for receiving the audio data, and an audio terminal for supplying the audio frequency. The data is output to the speaker, and once the capacitor is charged, the MOSFET will be slowly turned on to ground the variable resistor, thereby attenuating the audio signal supplied to the variable resistor. [Embodiment] FIGS. 1 to 3 show a preferred form of the shelf television of the present invention, which is a form of a display monitor, having a housing 12 that can be of any desired shape. A display screen for displaying video data 14 and a speaker 16 for outputting audio data. Video data and audio data in the preferred embodiment include advertisements for advertising goods. As shown in Fig. 3, the housing 12 includes mounting pins (in 〇 n t ng s t u d s) 1 8 located behind it to enable the system to be mounted on a shelf in a department store, a store, etc., or near the merchandise to be sold. It should be understood that the nails 18 only represent a form of mounting the unit on a shelf or the like, and obviously other forms of brackets, connectors, etc. may be used. The system also includes a short-range detector 20 for detecting a person (eg, an expected customer) approaching the display system so that the display system can be activated to display advertisements about products near the display system. message. The advertisement 14 3 12XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 The message is intended to attract customers and provide information about these products in order to make them more likely to purchase these products. The proximity sensor 20 detects the presence of a person near the system, and then activates the system so that the system presents the advertisement message on the display screen 14 in the form of a visual advertisement, and accompanies the speaker 1 Audio frequency 6 output. Because the ad only begins to play when people move near the system, it is more likely to attract immediate attention than it would be less likely to be immediately noticeable by continuously displaying the ad. Therefore, it is more likely to draw attention to advertisements. Furthermore, since the advertisement is played from the beginning, people have the opportunity to watch the entire advertisement in order to provide complete information about the products they want to sell, thereby increasing the likelihood that people will buy these products. Figure 4 is the entire block diagram of the system. For clarity, FIGS. 5 and 6 show different parts of the block diagram of FIG. 4 on a larger scale. The system has a detector section 30, a high-to-low volume controller 40, a video and audio control section 50, and a video display and audio output section 60. This section 60 is basically composed of the aforementioned display 14 and speaker 16 as well as its general conventional control circuit, which will not be described in detail here. The video and audio control section 50 includes media (for example, flash memory cards, optical discs, tapes, or any other suitable storage media) that stores advertising data, and is used to read the data and supply the data as a video signal and An audio signal is sent to the control circuit of the section 60. Again, the details are conventional and will not be described in further detail here. This section 30 activates sections 50 and 60 in response to people's proximity to the system, and includes a power supply 70 (for example, a 12 volt power supply) to supply electricity 15 312XP / Invention Specification (Supplement Cases) / 94-04 / 9313 905 8 200527335 Source to this section 30. A photoresistor 71 is connected to the power source 70 in parallel, and a variable resistor 72 is connected to the resistor 71 in series to adjust the sensitivity of the resistor 71. A transistor 7 3 is connected between the variable resistor 72 and the resistor 71. The collector of the transistor 7 3 is connected to the line 7 4 and is also connected to the power source 70 through a resistor 7 9. The line 7 4 includes a diode 75 and a second variable resistor 76. A capacitor 77 is connected to the resistor 7 6 and another resistor 7 8 is also connected to the capacitor 7 7 and the resistor 76. The resistor 78 is connected to a second transistor 80, and the collector of the second transistor 80 is connected to a relay 90 through a line 81. The relay 90 is connected to the power source 70 and includes a diode 91 and a switch 92. The switch 92 supplies power from the power source 70 to the zone 50 when it is turned off to start and operate the zone 50. When the continuous intensity of light falls on the resistor 71, a current will flow through the resistor 71 depending on the setting and the variable resistor 72. Therefore, the transistor 7 3 is turned on, and a current flows through the line 9 2 a. This in turn causes the electric crystal 80 to close, so no current flows through the relay 90. Therefore, the relay switch 92 is kept open. However, if, for example, a person approaches the system from a distance of 2 meters to block the light radiated to the resistor 71, the resistor 71 does not conduct and cannot bias the transistor 73, thereby making the electricity Crystal 7 3 is off. Thus, the transistor 80 is forward biased via the diode 75, the variable resistor 76, and the resistor 78 so that a current will flow through the relay 90 and the relay switch 9 2 shut down. Therefore, the switch 9 2 supplies power to the section 50 through the line 9 3 to start the section 50 and cause the section 60 to read 312XP / Invention Manual (Supplement) / 94-04 / 93139058 16 200527335 Get and display the video and audio information stored in section 50. The second variable resistor 76 sets a time during which the relay 90 is kept on. When the light is irradiated to the resistor 71 again (for example, when a person leaves the system), the relay 90 will be cut off and the power to the section 50 will be turned off. As shown in FIG. 4, the segment 50 has a video output line 100 connected directly to the segment 60. The audio output line 1 0 1 from this section 50 is connected to this section 40 to adjust the volume according to the distance from the system to the person. It is obvious from FIG. 4 that the line 10 1 is connected to a variable resistor 10 2, and the variable resistor 10 2 is connected to an amplifier signal input terminal 1 0 3, the amplifier signal input terminal 1 0 3 is connected to the display section 60 in turn. The audio signal passes through the section 40 to the amplifier 103, and then to the section 60, for output via the speaker 16 as described above. When the power is first supplied to section 50 as described above, the transistor 73 is in the off state, and the point A of the section 40 is floating and the audio frequency from the section 50 will pass through the variable The resistor 10 2 goes directly to the amplifier 103. The capacitor 1 0 3 a is slowly charged with a charging time set by a variable resistor 10 4, wherein the variable resistor 10 4 is connected to the transistor 1 07 via a diode 105 and a resistor 10 6 . The M0SFET transistor 107 will slowly turn on to effectively ground point A of the variable resistor 102. Then, part of the signal will reach the ground through line 10 9 instead of reaching the amplifier 103, thereby reducing the signal and thus the volume. The final audio level can be set by the variable resistor 102. This cycle can be repeated when the power to this zone 50 is turned off and then on. Therefore, when the power is turned on, the entire audio signal will be supplied to 17 312XP / Invention Specification (Supplement) / 94-04 / 9313905 8 200527335 This section 60, and thereafter, the audio volume will be reduced to the The segment 60 0 is used to reduce the volume level output by the speaker 16. The relay 90 includes relay switches 9 5 and 9 6 which are used to discharge the capacitor 10 3 a via the lines 1 1 1 and 1 12 when no power is supplied. Therefore, when the power is supplied to the zone 50 again, this ensures a repeat time delay. FIG. 7 shows another specific example of the present invention. Referring to FIG. 7, a pyro-electric infrared motion sensor 150 is provided to detect the approach of a person. When a person passes the sensor 150, the sensor 150 detects the heat generated by the human body and generates a low-frequency signal of about 8 Hz. This will initiate the start of a video display. The output of the sensor 15 0 is fed to the non-inverting input terminal of the amplifier 15 1 through a line 15 2. The amplifier 1 5 1 is also connected to a band-pass filter, where the band-pass filter is composed of a capacitor 1 5 3, a resistor 1 5 4, a capacitor 1 5 5 and a resistor 1 5 6. The band-pass filter has a bandwidth of about 8 Hz. The amplifier 151 provides a gain of about 30 dB. The output of the amplifier 151 is coupled to an amplifier 16 0 via a capacitor 16 1 and a resistor 16 2. A band-pass filter 16 is formed in a manner similar to the above-mentioned band-pass filter, and the amplifier 160 provides another gain of 30 dB. The output of the amplifier 16 0 is connected to a capacitor 16 7 which in turn feeds the signal from the amplifier 16 0 to a windowed comparator circuit formed by comparators 16 9 and 170 ( window comparator circuit) 1 6 8. For the inverting input terminal 1 71, the window voltage of the window comparator 168 is set to about 3 volts; for the non-18 312XP / Invention Specification (Supplement) / 94-04 / 93139058 200527335 For the inverting input 1 2, set it to about 1. 7 volts. When the heat generated by the human body is detected, the amplifier 16 0 will generate a voltage output to the capacitor 1 67. Any voltage swing outside this voltage window shape will cause the output terminal 17 of the comparator 16 9 to go low, which will trigger a timer circuit 18 0 via line 18 1. This line 1 8 1 is connected between the diodes 18 2 and 1 8 3 so that the outputs of the comparators 169 and 170 are isolated from each other. The delay time of the timer 180 is set by the variable resistor 18 5 and the capacitor 18 6. For example: the delay time may be about 1 minute. The delay time can be adjusted by adjusting the variable resistor 1 8 5. When the timer 1 0 8 is triggered by a signal on the line 1 8 1, the output terminal 1 8 7 goes high to start the relay 1 8 8. This causes the contacts 1 8 9 to be closed to supply power from the power supply 19 1 to the line 19 2 and then to the multimedia circuit board (m u 1 t i m e d i a b 〇 a r d) shown in FIG. 4 via the output terminal 19 3. The contact 190 is opened so that the capacitor 195 can be charged via the resistors 196 and 197. This resistor 1 9 6 sets the time when M0SFET 198 is turned on. Before the M0SFET 198 is turned on, the audio signal is supplied from the audio input terminal 200 to the variable resistor 199, and then the audio input is supplied from the signal amplifier 103 in the same manner as in the above specific example. The sliding contact 2 0 1 supplies this audio input. When the capacitor 19 5 is charged to a sufficiently high potential to slowly turn on the M 0 S F E T 1 98, the variable resistor 19 9 is effectively grounded and the audio signal is attenuated. Therefore, the initial audio signal that starts immediately once a person is detected is set by the variable resistor 199, and when the capacitor 195 is charged, it will attenuate the audio when it is assumed that the person will be close to the TV Signal, and when people are closer, the volume of sound will be attenuated so that people will approach 19 3 12XP / Invention Manual (Supplement) / 94-04 / 93 丨 39058 200527335 The TV 1 2 (as shown in Figure 1) Produces a comfortable volume. When the timer 1 800 expires, cut off the relay and open the contact 1 89. Therefore, the power of the circuit board from the line 191 is cut off to end the video display cycle. Close to discharge the capacitor 195 via line 202, thereby predicting the audio level control. The power circuit 2 0 5 receives a 12 volt input power and outputs its volts to a line 2 06 for supplying a power supply 1 8 0 through a line 2 7 and providing a voltage source to the variable resistor 1 8 5 source. Also supplied to wire 2 0 8 for operation via resistor 20 9 and wire 2 1 1 (including resistors 2 1 2, 2 1 3 and 2 1 4) and wire 2 2 6 and 2 1 7) The sensor 150 and the comparison FIG. 8 shows still another specific example of the present invention, wherein the same is the same as the part described in FIG. 7. In the specific example of FIG. 8, the sensor 300 is a thermoelectric integrated circuit. The sensor 300 includes a passive red amplifier and a comparator output circuit. When a person passes the sensor, the sensor will detect the heat generated by the human body and generate a low-frequency signal. The integrated circuit in the sensor 3 0 0 feeds the signal to the sensor 3 0 0 The output of the comparator circuit is higher than that of the comparator circuit, and the high power transmission crystal 3 0 2 on the line 3 0 1 is used to turn on the transistor 3 2 2 to make the line voltage. The low signal on line 3 0 3 is triggered via line 3 0 4 In this specific example, resistor 1 8 5 is immutable, and 312XP / Invention Manual (Supplement) / 94-04 / 93139058 device 1 8 8 In order to reach the contact point 190 of the multimedia, prepare for next cycle conversion to a 5 to control the timing. The 5 volt electric capacitors 2 1 0 to 2 1 5 (including resistors 169 and 1 7 0. The component symbols indicate infrared movement sensing external line components, a low-frequency signal, amplifying, and when measuring a 300, as well. This promotes The ratio signal is supplied to 3 0 to become a low-voltage timer 1 80. The resistor 1 8 5 and 20 200527335 capacitor 1 8 6 constitute a delay time. The timer 1 8 0 is the same as the previous specific example. The way to operate the relay 1 8 8 is to supply the output on the connection terminals 193, 2000 and 2000 in the same manner as described above. When starting to play a media file, 3 1 0 from the multimedia memory card becomes High voltage to energize the crystal 3 1 1. This will keep the pin 3 1 2 of the integrated circuit 3 low voltage. Once the playback of a media file is completed, the line 3 1 0 changes state to change the line 3 1 2 Pull to a high voltage. The active output of the circuit 3 is supplied to the transistor 3 1 5 via a dipswitch 3 1 4 to turn on the transistor 3 1 5. This in turn will cause the line 3 1 6 to become a low voltage, the low The voltage cuts off the power supplied to the timer via line 1 8 1 The timer and cut off the power to the media player. Before switching off, the switch 3 1 4 allows playing up to four media files. The container 3 1 7 introduces a delay to prevent an error from triggering the action again. As mentioned earlier, when the timer 1800 has finished counting, the relay changes state and opens contacts A and B to cut off the power to the media memory card via line 192. This ends the video display. Close the The contact 190 of the relay discharges the capacitor 195 in order to prepare for the next cycle of audio level control. The toggle switch 3 1 4 allows a single advertisement, two advertisements, three advertisements or four advertisements to be played. See Figure 8 The numbers 1, 2, 3, and 4 are shown, and the dial switch is manually set to one of the positions shown in FIG. 8 to play one, two, three, or four advertisements. As shown in FIG. 8 An advertisement will be played at this position. If you adjust the DIP switch 3 1 4 to position 4 in Figure 8, you can play 4 advertisements. The working time of the timer 1 8 0 can be on the line 1 8 1 Power 312XP / Invention Manual (Supplement) / 9104/93139058 Xianfang Line 13 The 13-body electricity is based on the electric power? The wide hand seat and 21 200527335 R-C circuit (formed by resistor 1 8 5 and capacitor 1 8 6) are set as follows: The working time can be set to a maximum of 5 minutes. To comply with any long notice (for example: product display, etc.) At the end of each advertisement, the circuit 3 1 3 outputs a high signal to the corresponding active pin 1-4. Only one pin is effective at a time. It is set by the DIP switch, and a high voltage output can be received at the DIP switch 3 1 4 setting. This will turn on the transistor 3 1 5 and make it low voltage. A low voltage on this line 3 0 6 will reset the timer to release the relay 1 8 8. Then, the system enters a wait 4 when the relay contact 1 8 9 is opened, it will no longer be connected to the circuit 3 2 1 via the line 3 2 0 and then to the media player input 3 2 2. In the specific example of FIG. 8, the relay 1 8 8 is connected in parallel with a resistor 3 5 1 and a light-emitting diode 3 5 2 to display the timer status, that is, the light-emitting diode and the relay. At the same time, the power supply of the timer 180 is received. Therefore, when the timer 180 is supplied with the electrical relay 18, the light-emitting diode is caused to emit light. In addition to the scope of the patents attached below and the foregoing description of the present invention, as required by the language of expression or the implied need to imply, the formula (丨 'comprises') or n compri is used to include In the meaning, that is, to designate the existence of the structure does not exclude the existence of another structure in different specific examples of the present invention. Because those skilled in the art can easily implement modifications within the spirit of the present invention, so It can be understood that the present invention is not limited to the above 312XP / Invention Specification (Supplement) / 94-04 / 93139058. The scope of the example is shown in Figure 8. The wiring through the pins is 3 0 6 180, Mo. Connected to a 351 from this source to this, except this π includes sing "), but in the specific example described in or added to the scope of the example 22 200527335. [Schematic description] Figure 1 is based on a better implementation A front view of a display system in the form of a shelf television. Fig. 2 is a bottom perspective view of the system of Fig. 1. Fig. 3 is a rear view of the system of Fig. 1. Fig. 4 is a block circuit diagram of a display system according to a specific example. Figure 5 Fig. 6 is a partial detailed diagram of the block diagram of Fig. 4. Fig. 6 is a partial detailed diagram of the block diagram of Fig. 4. Fig. 7 is a circuit diagram of another specific example of the present invention. Fig. 8 is a circuit diagram of the best specific example. Description of main component symbols] 12 Case 14 Display screen 16 Speaker 18 Mounting nail 20 Proximity detector 30 Detector section 4 0 High to low volume controller 50 Audio control section 60 Video display and audio output section 70 Power supply 71 Photoresistor 72 Variable resistor 312XP / Invention manual (Supplement) / 94-04 / 93139058 23 200527335 73 Transistor 74 wire 75 Diode 76 Second variable resistor 77 Capacitor 78 Resistor 79 Resistor 80 Second transistor 81 line 90 relay 91 diode 92 switch 92a line 93 line 95 relay switch 96 relay switch 100 video output line 10 1 line 102 variable resistor 103 amplifier 103a capacitor 104 variable Resistor 105 Diode 106 Resistor 312XP / Invention Note (Supplement) / 94-04 / 93139058 24 200527335 1 07 Transistor 10 9 Line 111 Line 112 Line 1 50 Sensor 151 Amplifier 1 52 Line 1 53 Capacitor 1 54 Resistor 155 Capacitor 1 56 Resistor 160 Amplifier 16 1 Capacitor 162 Resistor 164 Bandpass Filtering 16 7 Capacitor 168 Window Comparison 1 69 Comparator 170 Comparator 17 1 Inverting Input 1 72 Non-Inverting 1 73 Output 180 Timer electrical 181 line circuit circuit input terminal 312XP / Invention Manual (Supplement) / 94-04 / 9313905 8 25 200527335 1 82 Diode 1 83 Diode 185 Resistor 1 86 Capacitor 1 87 Output 1 88 Relay 189 Contact 1 90 Contact 1 91 Power 1 92 Line 1 93 Output 1 95 Capacitor 1 96 Resistor 1 97 Resistor 1 98 MOSFET 1 99 Variable Resistor 200 Audio Input 201 Sliding Contact 202 Line 205 Power circuit 206 line 207 line 208 line 21 1 line 312XP / Invention Manual (Supplement) / 94-04 / 93139058 26 200527335 212 Resistor 213 Resistor 214 Resistor 21 5 Line 21 6 Resistor 217 Resistor 300 Sensor 301 Line 302 Transistor 303 Line 304 Line 306 Line 310 Line 31 1 Transistor 312 Pin 313 Integrated Circuit 314 DIP switch 315 transistor 316 line 317 capacitor 320 line 321 circuit 322 media player input 35 1 resistor 312XP / invention manual (supplement) / 94-04 / 9313905 8 27 200527335 3 5 2 light emitting diode
312XP/發明說明書(補件)/94-04/9313905 8 28312XP / Invention Manual (Supplement) / 94-04 / 9313905 8 28