經濟部中央標準局員工消費合作社印繁 A7 ___ΒΊ__五、發明説明（j ) 發明背景 發明領域 本發明關於一可在全世界使用的短波接收器。 相關技術敍述 已知一種短波接收器具有一儲存諸如B B C及VOA 等主要廣播站的頻率資料的ROM。藉由這種短波接收器 ，對應於一所要的廣播站的信號可被容易地選取。在這種 接收器中，.當一對應於B B C的鍵被按下時，B B C的頻 率訊息自R 0 Μ被讀取。利用此訊息，一接收頻率被設定 。如此，對應於B B C的一信號被選定。 但是，在短波播放中，由於其傳播特性，可得的頻率 因地而異，諸如B B C及VOA的短波接收器以不同頻率 播放相同節目。 如此，ROM儲存每一廣播站的多數個頻率以使使用 者（聽眾）可手調選擇頻率訊息，藉此接收所要的廣播站 的節目。 但是，這種頻率訊息以每一短波廣播站的頻率順序排 列。如此，由於使用者不知道所要的廣播站的節目在何頻 率可被妥當接收，使用者需接收所要的廣播站的所有頻率 然後以嚐試錯誤的方式選擇一該區域適合的頻率。 如此，即使沒有此一頻率訊息，使用者需接收所要的 廣播站的相同節目之許多頻率然後比較其信號狀況。結果 ’找尋一適合於使用者區域的頻率對使用者而言是相當麻 煩的。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 -線 -4- A7 B7 經濟部中央標準局貝工消費合作社印製 五、發明説明Q ) I 本發明的目的及槪雒· 本發明的一目的爲解.決以上的問題。 爲解決此一問題，本發明係一用以自多數個以不同頻 率播放相同節目的信號中選擇一信號並接收該信號的一短 波接收器，其包含具有在對應於時間差之地區中可得的時 間差材料及頻率訊息的時間表，其中在使用該短波接收器 的區域的頻率訊息被自對應於該區域的一時差的時間表復 原，以及其中一所要的信號對應於所復原的頻率訊息被選 擇。 如此，即使若相同的節目以不同的頻率被播放，僅有 在其被接收的區域中的一頻率被選定。 本發明的以上及其它目功能及優點的在經過以下的詳 細敍述，連同對應的圖式之說明將變得非常淸楚。 圖式的簡要敍述 圖1爲顯示本發明的一實施例的方塊圖； 圖2爲顯示本發明的一實施例的一流程圖； 圖3爲顯示一訊息表的一例子的一簡圖； - 圖4爲顯示一接收的一例子的一簡圖； 圖5爲用以解釋一儲存區域的一簡圖；以及 圖6爲顯示接收器的外表的一前視圖的一簡圖。 主要元件對照 (請先閲讀背面之注意事項再填窍本頁) -1Τ: 線 本紙張尺度適用中國國家棕準（CNS)A4規格（210X297公釐） -5- 五、發明説明Q ) 經濟部中央標準局員工消費合作社印製 10 接收電路 11 天線 12 天線調頻電路 13 射頻放大器 14 混合電路 15 中頻電路 16 調幅偵測電路 17 放大器 18 揚聲器 19 接收位準偵測電路 20 PLL 21 VCO 22 可變分頻電路 23 相位比較電路 24 振盪電路 25 低通濾波器 30 微電腦 31 CPU 32 ROM 33 RAM 34 記憶體 35 輸出璋 36 輸入淳 37 時鐘電路 A7 B7 -----------------訂------線 ' (請先"讀背fr之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）' -6- A7 B7 經濟部中央標準局貝工消费合作社印裝 五、 發明説明ί 1 ) 1 I I 38 鍵界面 電 路 1 1 39 系統匯 流 排 1 1 41 顯示控 制 器 f~、 請 先 1 1 42 記憶體 閱 讀 1 背 1 50 LCD 之 1 注 1 50A 時間顯 示 部 份 事 1 項 | 50B 區域名 稱 顯 示 部 份 4 ύ I 份 寫 50C 時差顯 示 部 本 頁 60 箱 S_^ 1 1 I 較佳 實 施例的 詳 細 敍 述 1 此 種短波 接 收 器 爲 —^ 合成 型 接 收 器 及 —- 時 鐘 電 路 0 時 17 1 鐘電 路 容許將 接 收 器 所使用 的 區 域 的 當 地 時 間 顯 示 出 〇 1 1 藉 著有關 當 地 時 間 或 時 差 的 訊 息 可決定 接 收 器 所使 1 I 用的 域，相 應 於 該 區 域 可 決 定 該 1¾ 域 的 its 頻 率 〇 1 1 線 根 據本發 明 相 應 於有 關 播 放的 訊 息 可決定 域 所 ：)! 被使用 的區域 0 對 於 主 要 短 波 廣 播 站 而 言 僅 接 收 器 被 使 -1 1 1 用於 其 中的區 域 的 頻 率 可 被 選 擇 0 1 1 在 圖1所示的 接 收 器 短 波 中 相 應 於 B B C Ύ 0 A •1 I 及日 本 廣播的 信 號 可 被 選 作 爲 主 要 短 波 廣 播 站 者 〇 在 此 情 1 I 形下 y 時差代 表 與 U T C 時 間 ( 全球時 間 或 格林 威 治 標 準 1 1 時間 ) 的差異 0 1 1 在 圖1中 參 數 1 0 代 表 合成 型 的 一 接 收 電 路 〇 —* 信 1 1 號被 接 收自一 天 線 1 1 0 所 接 收的 信 號 被 送 至 一 電 子 3田 柄 頻 1 1 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部中央標準局員工消费合作社印製 A7 B7五、發明説明Q ) 型的一天線調頻電路1 2。該天線調頻電路1 2取得一所 要的頻率f RX之播放信號SRX。 信號S R X經由一射頻放大器1 3被送至一混合電路 1 4。再者，具有以下頻率的一振盪信號S L 0自一 VC02 1被送出。 f L 0 = f R X + f I F〔 Κ Η z〕......... ( 1 ) 其中f IF代表一中頻（例如：450ΚΗζ)。 信號S L 0被當成一區域振盪信號送至混合電路1 4。混 合時差將信號SRX轉換爲一中頻信號SIF(具有一 f I F的中頻）。 中間頻率信號SIF經由一具有中頻濾波器及一放大 器的一中頻電路1 5被送至一AM偵測電路1 6。該AM 偵測電路1 6將該中頻信號S I F解調爲一可聽信號。該 可聽信號經由一放大器1 7被送至一揚聲器1 8。 一接收位準偵測電路19被連接至該中頻電路15及 偵測電路1 6。該接收位準偵測電路1 9輸出一代表所接 收的信號S RX的接收位準是否超過一預定値的偵測信號 〇 在此情形下’ V C02 1利用電路2 2至2 5作成一 PLL20。換言之’信號SLO自VC02 1被送至可 變分頻電路2 2。該可變分頻電路將信號s L 0的頻率除 以N。所得信號被送至相位比較電路2 3。再者，振盪電 ----------------1T-------線 .(請先閱讀背I之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） -8- 經濟部中央標準局員工消費合作社印製 A7 B7 __五、發明説明^ ) 路24將一具有參考頻率（例如，5KHz)的振盪信號 A _二·· 送至相位比較電路2 3。所比得的結果被送至v c 〇 2 1 當作通過低通濾波器2 5的控制電壓瀘波器2 5的輸出電 壓被當作一節目選擇電壓送至天線調頻電路1 2。 如此，在一穩定狀況下，由於分頻電路2 2的輸出信 號的頻率與振盪電路2 4的輸出信號的頻率一樣，振盪信 號SLO的頻率f L0可被表示如下： fL0 = NX5〔KHz〕.........（2) 藉由式（1)及式（2)，接收頻率fRX可被表示如下 f R X = f L 0 - f IF = NX5 — 450〔KHz〕 如此，當分頻率在5 5 0至6 0 9 0的範圍間被逐一 改變時，因爲區域振盪頻率f L0在27 50KHz至 3 0 4 5 Ο Κ Η z的範圍間以5 Κ Η z的間隔變化3如此 ，接收頻率fRX在2300ΚΗΖ至3000ΚΗΖ的 範圍內相應於分頻率N以5 KH z的間隔變化。 參數3 0代表一當作一控制單元的控制該系統的微電 腦。該微電腦包含一CPU31，一 ROM32，一工作 區RAM3 3，及一記憶體34。該R0M3 2儲存不同 -------------1--1τ·------線 (請L閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS〉A4規格（2】ΟΧ297公釐） -9 · A7 B7 經濟部中央標準局負工消費合作社印製 五 、發明説明 <7 r ) 1 1 的 處 理路 徑 〇 記 憶體 3 4 儲 存不 同型 態 的 資 料 〇 記 億 體 1 1 1 3 2 至3 4 經 由 —系 統 匯 流 排3 9被 連 接 至 C Ρ U 3 1 〇 1 1 在此 情 形下 ，R 0 Μ 3 2儲 存一 如 圖 2 所示 的 範 例 處 請 1 1 先 1 理路 徑的 —' 節 巨 選擇 路 徑 1 0 0 。該 節 巨 選 擇 路 徑 1 0 0 閱 普 1 1 將 敍 述於下 〇 相 應於 節 百 選 擇路 徑1 0 0 一 相 應 於 廣 播 月 面' 之 \ 1 I 站的 信號 對 應 於 接收 器 所 被 使用 於其 中 的 1^ 域 的時 差 而 被 意 事 1 1 選 擇 0 項 再 填 1 1 再者 R 〇 M3 2 儲 存分別 顯示於 圖 3 及 4 中 的 時 差 本 頁 t 表 J S A T Β L 及一 頻 率 表 F R Q T B L 0 在此 情 形下 1 I 時 差 表J S Τ B L具 有 對 應 的時 差資 料 J ,1 S A 及區 域 名 稱 資 料C Η I Μ Ε I 〇 在 圖 3中 ， —. 在 表 J S A T B L 上 1 1. 的 欄 '區 域 名 稱 /城 市名 稱 '係供參 考 用 0 如此 表 J S 訂 1 A T B L 不 具 有 欄" 區 域 名 稱/城市名 稱 〇 1 | 頻率 表 F R Q Τ Β L 爲 一具 有主 要 短 波 廣 播 站的時 差 1 I 資 料 J I S A 及其相 膝 應 的 頻 率資 料。 在此例 中 主 要 短 波 1 1 線 丨1 廣 播 站爲 Β B C ，V 0 A 及 曰本 廣播 〇 再者 頻 率 資 料 爲 可 變 分頻 電 路 2 2的分 頻 率 N。 在圖 4 中 括 號 中 的 値 代 - I 表 供 參考 的 對 應 於分 頻 率 N 的頻 率。 如此 脏 頻 率 表 1 F R Q T Β L 不 具有 這 些 頻 率。 - 1 1 記憶 體 3 4 爲一 電 子 式可消 除/ 寫 入 資 料 R 0 Μ 〇 或 1 者 記憶 體 3 4 爲一 電 池 維 持的 R A Μ 〇 換 言 之 記 憶 體 1 1 3 4 爲一 非 揮 發 性記 憶 體 0 如此 ，即使若 電 源 被 關 掉 t 記 1 | 憶 體 3 4 可 將 資 料保持 0 如 圖5 所示 記 億 體 3 4 儲 存 白 1 | 時 差 表J S A Τ B L 所 復 原 的時 差資 料 J I S A 0 1 1 1 本紙張尺度適用中國國家標準（CNS ) A4規档（210X297公釐） -10- 經濟部中央標準局貝工消費合作社印製 A7 B7五、發明説明) 在圖1中，依照本發明的短波接收器包含一輸出埠 3 5，一輸入埠3 6 ’ 一時鐘電路3 7 ’及一鍵界面電路 3 8。這些電路3 5至3 8經由一系統匯流排3 9被連接 至CPU3 1。埠35被連至分頻電路22以使由CPU 3 1所指定的分頻率N被經由埠3 5設定至分頻電路2 2 。一偵測信號S 1 9自偵測電路1 9經由埠3 6被送至C P U 3 1。 時鐘電路3 7對應於於例如UTC時間測量出目前時 間。所測得的U T C時間的資料被送至C P U 3 7。再者 ，對應於短波廣播站B B C，VOA及日本廣播的節目選 擇鍵KBBC，KVOA及KJ PN被連接至界面中頻 3 8。此外，時間設定鍵KT S，頻率掃描上/下鍵K +及 K_ (這些鍵執行用以對應於時差表J SATL前向及反向 讀取區域名稱資料CH I ME I的區域名稱資料鍵的功能 )，以及其它操作鍵KI至KM被連接至界面電路38» 這些鍵K B B S至KM係屬非偵定型壓式開關。 再者，顯示控制器4 1被連接至匯流排3 9。一顯示 記憶體4 2被連接至顯示控制器4 1，此外，一顯示裝置 (例如，一 LCD50)被連接至該顯示控制器41。 CPU3 1使資料在控制器4 1的控制之下被寫入至 記憶體4 2。控制器4 1以預定間隔重複地讀取寫入的資 料，將資料轉換爲一顯示信號，並將顯示信號送至L CD 5 0。L CD 5 0對應於寫入於記憶體4 2中的資料以數 爲方式顯示時間，接收頻率，等等。圖6爲顯示依照本實 (請先閱讀背面之注意事項再填寫本頁) -r -訂 線- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - A7 B7 經濟部中央標準局員工消費合作社印製 五 、發明説明^ ) 1 1 施 例的短波 接 收 器 的 — 箱 6 0 0 參 數1 8 Α爲 設 於 箱 中 的 1 1 I 揚 聲 器1 8 刖 的 — 揚 聲 器 網 0 再者 ，L C D 5 0 1 電 源 開 1 1 I 關 其它鍵 K + Κ — Κ Β Β C ，κ V D A K 1 9 請 1 1 K 2 9 · · ♦ · · · K Μ 等 等 被 設 於 箱 上 〇 先- 閲 讀 1 1 在上述 的 結 構 中 個 別 處 理及 操作 被 如下 執 行 0 背 面·' 1 1 1 < 設 定當地時 間 > 患 事 項 再 1 1 4 1 爲改變 L C D 5 0 上 的時 間 爲 短波 接 收器 被使用於其 寫 本 頁 t Λ 間 的 區域的 當 地時 間 在 電 源 開 關 被切掉之下時間 設 定 鍵 1 1 I K T S被壓 下 的 同 時 Mm 觸 壓 上 鍵 Κ + 或下 鍵 K - 〇 1 —旦在時 間 設 定 鍵 被 壓 下 而 鍵 K + 或 K - 在 被 壓 下 時 1 9 區 域名稱 資 料 C Η I Μ Ε I 分別被以 上 升或下 降 順 序 白 訂. 1 時 差 表J S A T Β L 讀 取 〇 所取 得 的時 差 名稱 資 料 1 1 C Η I Μ Ε I 在 控 制 器 4 1 的 控 制 下被 寫 入至 記 憶 脑 體 4 2 1 I 〇 如 此，一 旦 鍵 Κ + 或 Κ 被 壓 下 ，時 差 名稱 資 料 1 線 C Η I Μ Ε I 的 區 域 名 稱 被 分別 以 上升 或 下降 順 序 顯 示在 I 1 L C D 5 0 上 〇 - 1 1 此時， 對 應 於時 差 名 稱 資 料 C HI Μ Ε I 的 時 差 資 料 1 1 J I S Α被 讀 取 白 時 差 表 J S A T B L 及 寫入 至 記 憶 體 1 3 4 。再者 時 差 資 料 J I S A 在 控制 器 4 1 的 控 制 下 被 寫 入 至記憶 體 4 2 〇 如此 如 圖 6 所示 一時 間 顯 示 部 份 1 1 5 0 A，一 區 域 名 稱 3 1 部份 5 0 B， 及 —，區 域 顯 示 部 份 1 1 I 5 0 C被設 於 L C D 5 0 上 9 時 間 顯示部份5 0 A 顯 示時 1 1 I 間 資 料。區 域 名 稱 顯 示部份 顯 示時 差名 稱 。時 差 顯 示 部 份 1 1 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公犛） -12- A7 B7 經濟部中央標準局員工消費合作社印製 五 、發明説明 ) 顯 示相關 區 域 的時 差》 在短 波 接 收 器 所被使用 的區域名 稱 的 顯 示 中 當 鍵 K +或K — 及 鍵 K T S 被 放 開 時，區 域 名 稱 及 時 差 被 穩 定 地 顯示。 此時 顯 示在 L C D 5 0上 的 區 域 的 時 差 資 料 J ISA 被 儲 存在 記億 體 3 4 中〇 此後 困 刖 U T C 時 間 的 資料被 白 時 鍾 電 路 3 7 讀 取 0 U T C 時 間 的 資 料對 應 於 儲 存於記 憶 體 3 4 中 的時 差 資 料 J IS A 而 被 補 償爲 當 地 時 間。當 地時 間 的 資 料在控 制 器 4 1的 控 制 下 被 寫入 至 記 憶 體4 2 〇 如此 在 短 波 接收 器 所 被 使用的 區 域 的 當 地時 間 被 以 數 位方式 顯 示 在 L CD 5 0 上 〇 如此 當 所 要 的區 域 名 稱 藉由鍵 K + 或 K 一 以 及時 間 設 定鍵K T S 的 操 作而 顯 示在 LCD 5 0 上 時 區域的 時 差 自動地 被 指定 且 該區 域 的 當 地時間被 顯 示 0 < 顯示當 地時 間 > 此作 業 係於 電 源被切掉時被執行的 〇 時鐘 電 路 3 7 以一 分 鐘 爲 間隔對 C P U 3 1 進 行 中 斷 〇 如此， C P U 3 1自 時 鐘 電 路3 7 讀 取 U T C 時 間 的 資 料 。此外 U T C 時間 的 資 料 對應於 儲 存在記 憶 體 3 4 內 的 時差資 料 J I S A被 補 償 爲 當地時 間 〇 當 地 時 間 的 資 料 在控制器 4 1 的 控 制下 被 寫 入 至記憶 體 4 2 〇 如此 > 如 圖 6 所示 9 區 域 名稱及相 應 的 當 地時 間 被 以 數 爲方式 顯 示於 L CD 5 0 上 〇 諳 先‘ 閱 讀 背 面' 之 注 項 再 訂 線 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -13 經濟部中央標準局員工消費合作社印製 A7 B7 _五、發明説明L ) <以節目選擇鍵選擇短波廣播站> 此作業被用以選擇BBC，VOA以及日本廣播中之 —。在此情形下。一對應於所要的短波廣播站的相關節目 選擇鍵被自鍵KBBC，KVOA及KJ PN中選出並壓 下。若要收聽B B C的節目，則壓下節目選擇鍵KB B C 〇 如此，.如圖2所示，CPU31的一路徑100由步 驟101開始。在步驟102，時差資料自記憶體34被 讀取。當短波接收器被使用於其中的區域爲中歐時，由於 時差爲+1小時，J I SA = +1之資料被讀取。 接著，流程進至步驟1 0 3。在此情形下，對應於 BB C的節目選擇鍵KBBC被壓下。再者，由於在步驟 .1 0 2中已被讀取的時差資料爲+ 1，由實線所包圍的資 料區被選擇。易言之，在步驟1 0 3中，對應於節目選擇 鍵KB B C及在步驟1 0 2中已被讀取的時差資料 J I SA的資料區被選擇。 此後，流程進至步驟104。在步驟104中，一代 表在步驟1 0 3中的頻率表FRQTBL中所選擇的資料 區的分頻率的變數i被設爲1。 此後，流程進至步驟1 1 0。在步驟1 1 1中，第i 個分頻率N (在此情況下，第一分頻率N ( = 74 1 )) 自步驟1 0 3中所選的頻率表中的資料區讀取。接著，在 步驟1 1 2中，已在步驟1 1 1中被讀取的分頻率N經由 本紙張尺度適用中國國家標準（CNS ) A4現g ( 2I〇X297公釐) ' '~~~' -----------------π·------線 (請L閲讀背面之注意事項再填寫本頁) -14- 經濟部中央標準局員工消費合作社印製 A7 _B7_.五、發明説明lj2 ) 埠3 5被設定至可變分頻電路2 2。對應於分頻率N的頻 率i RX爲接收電路ί 0的接收頻率。 接著，在步驟1 1 3中，決定在接收頻率f RX的一 信號是否可對應於偵測電路19的偵測信號S19而被接 收。 當信號無法被接收時，流程進至步驟11 4。在步驟 114中，變數i被累加1。接著，在步驟115中。決 定變數i是否成爲最大値（一般而言，在步驟1 1 3中所 選的資料區中的所有分頻率N已被使用）。當所有的分頻 率N未被使用時（一般而言，變數i的値未成爲最大値） ，流程回至步驟1 1 1。 此後，步驟111至115被重複。其中決定在步驟 1 0 3中所選的資料奩中的分頻率N的頻率上的信號是否 可逐一被接收（在此情況下，決定B B C的信號可否逐一 被接收）。 當具有多數個分頻率N的一信號可被接收時，流程進 至步驟121。在步驟121中，決定路徑100的節目 選擇鍵（在此情況中，爲節目選擇鍵KB B C )是否已被 壓下。 — 當節目選擇鍵未被壓下時，流程進至步驟1 2 2。在 步驟1 2 2中，決定是否已經過例如二秒的時間。若未過 二秒，則流程回至步驟121。如此，當路徑1〇〇的節 目選擇鍵未被壓下時，步驟1 2 1及1 2 2被重複。 但是，當在步驟1 2 1及1 2 2的迴路中已過了二秒 (請先'閲讀背V&之注意事項再填寫本頁) .II· -線· 本紙張尺度適用中國國家標準（CNS ) A4規格（2〗OX297公釐） -15- 經濟部中央標準局貝工消費合作社印製 A7 _B7_ 五、發明説明Jj3 ) 時（亦即，節目選擇鍵仍未被壓下），此狀態在步驟12 2中被偵測。如此，流程進至步驟1 1 4。在步驟S 1 1 4中，上述程序被執行。如此’當一節目被接收後一節目 選擇鍵在兩秒內未被壓下時’流程序以下一頻率被執行。 但是，當一節目選擇鍵在二秒過去之前被壓下時，流 程進至步驟123。如此，路徑100被完成。易言之， 當一節目選擇鍵在一節目被接收後的兩秒內被壓下時，在 廣播站已被選擇的情況下，路徑1 0 0被完成。如此，所 接收的廣播站被穩定地選擇。易言之，可在該區域中被接 收的廣播站（在此情況下爲B B C )被選擇。 當節目選擇鍵被壓下時，在局部區域中可得的頻率對 應於頻率表F R Q 丁 B L被掃描且一對應於該所要的廣播 站的信號被選擇。 <所用短波段的掃描接收作業> 此作業係以上鍵K+或下鍵K一執行。 一旦在電源被切掉的情況下鍵K+或K-被壓下時， C P U 3 1使分頻率N被累加或減去1而使成爲最大値 6 0 9 0或最小値5 5 0。 - 如此，當鍵K+或K —被壓下時，接收頻率f RX被 累加或減去5 Κ Η z。 一旦接收頻率f RX改變時，決定一對應於所要的廣 播站的信號是否已對應於該偵測信號S 1 9而被接收。當 一對應於所要的廣播站的信號未被接收時，該接收頻率 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公蝥） .(請先閲讀背面之注意事項再填寫本頁) ‘訂 線· -16- 經濟部中央標準局員工消費合作社印製 A7 B7五、發明説明“) I f RX被改變。當對應於所要的廣播站的信號以接收頻率 f RX被接收時，分頻率N的累加/遞減作業被停止》 如此，直到一對應於所要的廣播站的信號被接收時， 接收頻率f RX以5KH z的間隔被改變。當一對應於所 要廣播站的信號被接收時，該信號被連續地接收。易言之 ，掃描接收作業被執行。 .<結論> . 依照本發明的接收器，當短波廣播站在全世界以不同 短波頻率播放節目時，節目選擇鍵KB B C至K J PN可 有效在局部區域中以該特定頻率對該節目做最隹的接收。 如此，在不考慮接收器所使用的區域，一對應於一所要的 短波廣播站的信號可容易地被節目。 再者，接收器所使用的區域係以時差資料被決定。如 此，不需指定接收器所使用的區域。再者，接收器的製造 廠不需爲每一接收器使用於其中之國家做最佳接收頻率的 預設。 當頻率表FRQTBL被儲存於諸如一 P C卡的一可 拆式記憶體中以與接收器連用時，即使若短波廣播站的頻 率改變時，頻率表FRQTB L可被容易地更新。 依照本發明的申請專利範圍第1項，當短波廣播站以 不同短波頻率在全世界播放節目時，在不考慮接收器所使 用的區域之下，一對應於一所要的短波廣播站的信號可容 易地以最佳頻率節目。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請4閱讀背釙之注意事項再填寫本頁) -17- A7 B7 五、發明説明k ) 依照本發明申請專利範圍第2項，不需指定接收器所 使用的區域。再者，接收器的製造廠不需爲接收器所要使 用的每一國家做接收頻率的預設。 儘管之前參照所附圖式以一本發明的具體較佳實施例 進行敍述，應了解本發明並不限定於該實施例’且在不脫 離如所附之申請專利範圍所界定的本發明的範圍及精神之 下，熟習該項技術人士可達成許多不同的改變及更新。 ---------------、------線 {請先，閱讀背^之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） -18-Yin Fan, Consumer Cooperative of the Central Bureau of Standards, Ministry of Economic Affairs A7 ___ Β ___ V. Description of the Invention (j) Background of the Invention Field of the Invention The present invention relates to a shortwave receiver that can be used worldwide. Description of the Related Art It is known that a short-wave receiver has a ROM storing frequency data of major broadcasting stations such as BBC and VOA. With this short-wave receiver, the signal corresponding to a desired broadcasting station can be easily selected. In this receiver, when a key corresponding to B B C is pressed, the frequency information of B B C is read from R 0 M. With this message, a receiving frequency is set. In this way, a signal corresponding to B B C is selected. However, in short-wave broadcasting, due to its propagation characteristics, the available frequencies vary from place to place. Short-wave receivers such as B B C and VOA play the same program at different frequencies. In this way, the ROM stores a plurality of frequencies of each broadcasting station so that the user (listener) can manually select the frequency information, thereby receiving the program of the desired broadcasting station. However, such frequency information is arranged in the order of the frequency of each shortwave broadcasting station. In this way, because the user does not know at what frequency the program of the desired broadcasting station can be properly received, the user needs to receive all the frequencies of the desired broadcasting station and then select a suitable frequency in the region in a trial and error manner. Thus, even if there is no such frequency information, the user needs to receive many frequencies of the same program from the desired broadcasting station and then compare their signal conditions. As a result, finding a frequency suitable for the user area is quite annoying for the user. This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page) Order-line-4- A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Description of the invention Q) I. The purpose of the present invention and 槪 雒. An object of the present invention is to solve the above problems. To solve this problem, the present invention is a short-wave receiver for selecting a signal from a plurality of signals playing the same program at different frequencies and receiving the signal. Time difference material and schedule of frequency information, in which the frequency information in the area where the shortwave receiver is used is restored from a time difference schedule corresponding to the area, and one of the desired signals corresponding to the restored frequency information is selected . Thus, even if the same program is played at different frequencies, only one frequency in the area where it is received is selected. The above and other functions and advantages of the present invention are described in detail below, together with the description of the corresponding drawings, which will become very clear. Brief Description of the Drawings Figure 1 is a block diagram showing an embodiment of the present invention; Figure 2 is a flowchart showing an embodiment of the present invention; Figure 3 is a simplified diagram showing an example of a message list;- 4 is a diagram showing an example of a reception; FIG. 5 is a diagram for explaining a storage area; and FIG. 6 is a diagram showing a front view of the appearance of the receiver. Comparison of main components (please read the precautions on the back before filling this page) -1Τ: The size of thread paper is applicable to China National Brown Standard (CNS) A4 (210X297 mm) -5- 5. Description of the invention Q) Ministry of Economic Affairs Printed by the Central Consumer Bureau of Consumer Cooperatives 10 Receiver circuit 11 Antenna 12 Antenna FM circuit 13 RF amplifier 14 Hybrid circuit 15 IF circuit 16 AM detection circuit 17 Amplifier 18 Speaker 19 Reception level detection circuit 20 PLL 21 VCO 22 Variable Frequency division circuit 23 Phase comparison circuit 24 Oscillation circuit 25 Low-pass filter 30 Microcomputer 31 CPU 32 ROM 33 RAM 34 Memory 35 Output 璋 36 Input Chun 37 Clock circuit A7 B7 ------------- ---- Order ------ line '(please read the notes of fr before you fill in this page) This paper size applies to China National Standard (CNS) A4 specification (210X297 mm)' -6- A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention ί 1) 1 II 38 key interface circuit 1 1 39 System bus 1 1 41 Display control Device f ~, please read 1 1 42 memory 1 back 1 50 LCD 1 note 1 50A time display part 1 item | 50B area name display part 4 ύ I copy 50C time difference display page 60 boxes S_ ^ 1 1 I Detailed description of the preferred embodiment 1 This type of shortwave receiver is-^ Synthetic receiver and--Clock circuit 0:17 1 Clock circuit allows the local time of the area used by the receiver to be displayed. 1 The domain used by the receiver can be determined by the information about local time or time difference, and its frequency can be determined corresponding to that area. 1 1 line according to the present invention can determine the domain corresponding to the information about the broadcast. All :)! Area used 0 For major shortwave broadcasting stations only the receiver is enabled -1 1 1 The frequency of the area used in it can be selected 0 1 1 In the receiver shortwave shown in Figure 1 corresponds to BBC Ύ 0 A • 1 I and The Japanese broadcast signal can be selected as the main shortwave broadcaster. In this case, I means that the time difference represents the difference from UTC time (global time or Greenwich Mean Time 1 1 time). 0 1 1 Parameter 1 in Figure 1. 0 represents a receiving circuit of synthetic type 0— * Letter 1 No. 1 is received from an antenna 1 1 0 The received signal is sent to an electronic 3 field handle frequency 1 1 This paper size applies Chinese National Standard (CNS) A4 specifications ( 210X297 mm) A7 B7 printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of invention Q) An antenna frequency modulation circuit 12 The antenna frequency modulation circuit 12 obtains a playback signal SRX of a desired frequency f RX. The signal S R X is sent to a hybrid circuit 14 via a radio frequency amplifier 13. Furthermore, an oscillating signal S L 0 having the following frequency is sent from a VC02 1. f L 0 = f R X + f I F 〔ΚΗz〕 ......... (1) where fIF represents an intermediate frequency (for example, 450KΗζ). The signal S L 0 is sent to the hybrid circuit 14 as an area oscillation signal. The mixed time difference converts the signal SRX into an intermediate frequency signal SIF (an intermediate frequency with a f I F). The intermediate frequency signal SIF is sent to an AM detection circuit 16 through an intermediate frequency circuit 15 having an intermediate frequency filter and an amplifier. The AM detection circuit 16 demodulates the intermediate frequency signal S I F into an audible signal. The audible signal is sent to a speaker 18 via an amplifier 17. A receiving level detecting circuit 19 is connected to the intermediate frequency circuit 15 and the detecting circuit 16. The reception level detection circuit 19 outputs a detection signal representing whether the reception level of the received signal S RX exceeds a predetermined threshold. In this case, 'V C02 1 uses the circuits 2 2 to 25 to form a PLL20. . In other words, the 'signal SLO' is sent from VC02 1 to the variable frequency division circuit 2 2. This variable frequency division circuit divides the frequency of the signal s L 0 by N. The resulting signal is sent to a phase comparison circuit 23. In addition, the oscillating electricity ---------------- 1T ------- line. (Please read the precautions of the back I before filling this page) This paper size is applicable to China National Standard (CNS) A4 specification (210 × 297 mm) -8- Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 __V. Description of the invention ^) Road 24 will have an oscillating signal with a reference frequency (for example, 5KHz) A _ 二 ·· is sent to the phase comparison circuit 2 3. The compared result is sent to v c 〇 2 1 as the output voltage of the control voltage oscillator 25 passing the low-pass filter 25 is sent to the antenna frequency modulation circuit 12 as a program selection voltage. Thus, under a stable condition, since the frequency of the output signal of the frequency division circuit 22 is the same as the frequency of the output signal of the oscillation circuit 24, the frequency f L0 of the oscillation signal SLO can be expressed as follows: fL0 = NX5 [KHz]. ........ (2) By using equations (1) and (2), the receiving frequency fRX can be expressed as f RX = f L 0-f IF = NX5 — 450 [KHz]. When the frequency is changed one by one between 5 50 and 6 0 9 0, because the regional oscillation frequency f L0 varies from 27 50 KHz to 3 0 4 5 Ο Κ Η z at intervals of 5 Κ Η z 3, The receiving frequency fRX varies in the range of 2300KΗZ to 3000K 相应 Z corresponding to the sub-frequency N at intervals of 5 KHz. The parameter 30 represents a microcomputer that controls the system as a control unit. The microcomputer includes a CPU 31, a ROM 32, a work area RAM 33, and a memory 34. The R0M3 2 is stored differently ------------- 1--1τ · ------ line (please read the precautions on the back and fill in this page) This paper size applies to Chinese national standards (CNS> A4 specification (2) 0 × 297 mm) -9 · A7 B7 Printed by the Central Consumers Bureau of the Ministry of Economic Affairs, Printed by the Consumers Cooperatives V. Description of the invention < 7 r) 1 1 Processing path 0 Memory 3 4 Storage of different types State data 0 Record billion body 1 1 1 3 2 to 3 4 Via-System bus 3 9 is connected to CP U 3 1 〇1 1 In this case, R 0 Μ 3 2 stores one as shown in Figure 2 For example, please select 1 1 first path-'section giant select path 1 0 0. This section of the giant selection path 1 0 0 read 1 1 will be described below. 0 corresponds to the section 100 selection path 1 0 0-a signal corresponding to the \ 1 I station corresponding to the broadcast moon surface corresponds to the signal used by the receiver. 1 ^ The time difference in the field is taken into account 1 1 Select 0 items and fill in 1 1 Then R 〇M3 2 Store the time difference shown in Figures 3 and 4 on this page t Table JSAT Β L and a frequency table FRQTBL 0 Here In the case, the 1 I time difference table JS T BL has the corresponding time difference data J, 1 SA and area name data C Η I Μ Ε I 〇 In FIG. 3, —. On the table JSATBL, the column “area name / city” The name is for reference. 0 This table is JS. 1 ATBL does not have a column. "Area name / city name. 〇1 | Frequency table FRQ Τ Β L is a time difference with the main shortwave broadcasting station. 1 I Data JISA and its corresponding application. Frequency data. In this example, the main shortwave 11 line 丨 1 broadcast station is BBC, V0A and Japanese broadcast 〇 Furthermore, the frequency data is the frequency division frequency N of the variable frequency division circuit 22. The 4-I table in parentheses in FIG. 4 corresponds to the frequency corresponding to the frequency division ratio N for reference. Such dirty frequencies Table 1 F R Q T B L does not have these frequencies. -1 1 Memory 3 4 is an electronic erasable / writeable data R 0 Μ 〇 or 1 Memory 3 4 is a battery-maintained RA Μ 〇 In other words, memory 1 1 3 4 is a non-volatile memory 0 In this way, even if the power is turned off, t1 1 | memory 3 4 can keep the data 0 as shown in Figure 5 3 billion storage 4 4 store white 1 | time difference table JSA Τ BL restored time difference data JISA 0 1 1 1 This paper size applies to the Chinese National Standard (CNS) A4 (210X297 mm) -10- Printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by Aigong Consumer Cooperative A7 B7 5. Description of the invention) In Figure 1, the short wave according to the present invention The receiver includes an output port 35, an input port 36 ', a clock circuit 37', and a key interface circuit 38. These circuits 35 to 38 are connected to the CPU 31 via a system bus 39. The port 35 is connected to the frequency dividing circuit 22 so that the frequency division N designated by the CPU 31 is set to the frequency dividing circuit 2 2 via the port 35. A detection signal S 1 9 is sent from the self-detection circuit 19 to C P U 3 1 through port 3 6. The clock circuit 37 measures the current time corresponding to, for example, UTC time. The data of the measured U T C time is sent to C P U 3 7. Furthermore, the program selection keys KBBC, KVOA, and KJ PN corresponding to the short-wave broadcasting stations B B C, VOA, and Japanese broadcasting are connected to the interface IF 38. In addition, the time setting key KT S, the frequency sweep up / down keys K + and K_ (these keys are executed to correspond to the time difference table J SATL forward and backward reading area name data CH I ME I area name data key Function), and other operation keys KI to KM are connected to the interface circuit 38 »These keys KBBS to KM are non-detectable pressure switches. Furthermore, the display controller 41 is connected to the bus 39. A display memory 42 is connected to the display controller 41, and further, a display device (e.g., an LCD 50) is connected to the display controller 41. The CPU 3 1 causes data to be written into the memory 4 2 under the control of the controller 41. The controller 41 repeatedly reads the written data at predetermined intervals, converts the data into a display signal, and sends the display signal to the L CD 50. L CD 5 0 corresponds to the data written in the memory 4 2 to display time, reception frequency, etc. in numbers. Figure 6 shows according to the actual situation (please read the precautions on the back before filling in this page) -r-ordering-this paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -11-A7 B7 Ministry of Economic Affairs Printed by the Consumer Standards Cooperative of the Central Bureau of Standards 5. Description of the invention ^) 1 1 of the short-wave receiver of the embodiment-box 6 0 0 parameter 1 8 Α is set in the box 1 1 I speaker 1 8 刖-speaker network 0 In addition, LCD 5 0 1 power on 1 1 I close other keys K + κ — Κ Β Β C, κ VDAK 1 9 Please 1 1 K 2 9 · · ♦ · · · K Μ etc. are set on the box. First-read 1 1 In the above structure, individual processing and operations are performed as follows. 0 Back · '1 1 1 < Set local time > Affective items 1 1 4 1 To change the time on the LCD 5 0 to a shortwave receiver The local time used in the area between t Λ on which this page is written is when the power switch is cut off. Time setting button 1 1 IKTS is pressed At the same time, Mm presses the upper key K + or the lower key K-〇1 — once the time setting key is depressed and the key K + or K-when it is depressed 1 9 The area name data C Η I Μ Ε I are respectively Order in ascending or descending order. 1 Read the time difference table JSAT Β L read the obtained time difference name data 1 1 C Η I Μ Ε I is written to the memory brain 4 2 1 I under the control of the controller 4 1 〇In this way, once the key K + or KK is depressed, the area names of the time difference name data 1 line C Η I Μ Ε I are displayed on the I 1 LCD 50 in ascending or descending order respectively. At this time, corresponding to The time difference data 1 1 JIS Α of the time difference name data C HI Μ E I is read into the white time difference table JSATBL and written to the memory 1 3 4. Moreover, the time difference data JISA is written into the memory 4 2 under the control of the controller 4 1. As shown in FIG. 6, a time display part 1 1 5 0 A, a region name 3 1 part 5 0 B, And—, the area display part 1 1 I 5 0 C is set on the LCD 5 0 and the 9 time display part 5 0 A displays 1 1 I data. The area name display section displays the time difference name. Time difference display part 1 1 This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 gigabytes) -12- A7 B7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the time difference. In the display of the area name used by the short-wave receiver, when the key K + or K — and the key KTS are released, the area name and time difference are stably displayed. At this time, the time difference data J ISA of the area displayed on the LCD 50 is stored in the memory unit 34. After that, the data of the UTC time is read by the white clock circuit 37. The data of the 0 UTC time corresponds to the data stored in the memory. The time difference data J IS A in the body 3 4 is compensated for the local time. The local time data is written to the memory 4 2 under the control of the controller 41. So the local time in the area where the shortwave receiver is used is displayed digitally on the LCD 50. So when it is required The area name is displayed on the LCD 50 by the operation of the key K + or K 1 and the time setting key KTS. The time difference of the area is automatically specified and the local time of the area is displayed. 0 < Display local time > It is executed when the power is cut off. Clock circuit 3 7 interrupts CPU 3 1 at one minute intervals. In this way, CPU 3 1 reads UTC time data from clock circuit 3 7. In addition, the UTC time data corresponds to the time difference data stored in the memory 3 4 JISA is compensated to the local time. The local time data is written to the memory 4 2 under the control of the controller 4 1. 6 The area name and the corresponding local time shown in 6 are displayed on L CD 5 0 as a number. ○ '"Read the back" of the item and then set the line. The paper size applies the Chinese National Standard (CNS) A4 specification (210X 297). (Mm) -13 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs A7 B7 _V. Invention Description L) < Select shortwave broadcasting station with program selection key > This job is used to select BBC, VOA, and Japanese radio —. In this case. A related program selection key corresponding to the desired shortwave broadcasting station is selected from the keys KBBC, KVOA and KJ PN and pressed. To listen to the program of B B C, depress the program selection key KB B C. As shown in FIG. 2, a path 100 of the CPU 31 starts from step 101. At step 102, the time difference data is read from the memory 34. When the area where the shortwave receiver is used is Central Europe, because the time difference is +1 hour, the data of J I SA = +1 is read. Then, the flow proceeds to step 103. In this case, the program selection key KBBC corresponding to BB C is depressed. Furthermore, since the time difference data that has been read in step .102 is +1, the data area surrounded by the solid line is selected. In other words, in step 103, the data area corresponding to the program selection key KB B C and the time difference data J I SA which has been read in step 102 is selected. Thereafter, the flow advances to step 104. In step 104, the frequency-variable variable i of the data area selected in the frequency table FRQTBL in step 103 is set to one. Thereafter, the flow advances to step 1 1 0. In step 1 1 1, the i-th divided frequency N (in this case, the first divided frequency N (= 74 1)) is read from the data area in the frequency table selected in step 103. Next, in step 1 1 2, the sub-frequency N that has been read in step 1 1 1 applies the Chinese National Standard (CNS) A4 g (2I0X297 mm) via this paper size '' ~~~ ' ----------------- π · ------ line (please read the notes on the back and fill in this page) -14- Staff Consumer Cooperatives, Central Standards Bureau, Ministry of Economic Affairs Print A7 _B7_. V. Description of the invention lj2) Port 3 5 is set to the variable frequency division circuit 2 2. The frequency i RX corresponding to the divided frequency N is the reception frequency of the reception circuit Γ 0. Next, in step 1 1 3, it is determined whether a signal at the receiving frequency f RX can be received corresponding to the detection signal S19 of the detection circuit 19. When the signal cannot be received, the flow proceeds to step 11 4. In step 114, the variable i is incremented by one. Next, in step 115. It is determined whether the variable i becomes the maximum value (in general, all frequency divisions N in the data area selected in step 1 1 3 have been used). When all the frequency division ratios N are not used (in general, 値 of the variable i has not become the maximum 値), the flow returns to step 1 1 1. Thereafter, steps 111 to 115 are repeated. Among them, it is determined whether the signals on the frequency of the sub-frequency N in the data volume selected in step 103 can be received one by one (in this case, it is determined whether the signals of B B C can be received one by one). When a signal having a plurality of partial frequencies N can be received, the flow proceeds to step 121. In step 121, it is determined whether the program selection key (in this case, the program selection key KB B C) of the path 100 has been depressed. — When the program selection key is not pressed, the flow proceeds to step 1 2 2. In step 1 2 2 it is determined whether or not two seconds have elapsed. If two seconds have not elapsed, the flow returns to step 121. In this way, when the program selection key of the route 100 is not depressed, steps 12 1 and 12 2 are repeated. However, when two seconds have passed in the circuit of steps 1 2 1 and 1 2 2 (please 'read the notes on the back of V & and then fill out this page). II · -line · This paper standard applies Chinese national standards ( CNS) A4 specification (2〗 OX297 mm) -15- Printed by A7 _B7_ from the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (5. Description of the invention Jj3) (that is, the program selection key has not been pressed), this state Detected in step 12 2. In this way, the flow proceeds to step 1 1 4. In step S 1 1 4, the above-mentioned routine is executed. Thus, when a program selection key is not depressed within two seconds after a program is received, the streaming program is executed at the next frequency. However, when a program selection key is depressed before two seconds have elapsed, the flow advances to step 123. As such, the path 100 is completed. In other words, when a program selection key is pressed within two seconds after a program is received, in the case where the broadcasting station has been selected, the path 100 is completed. In this way, the received broadcasting station is stably selected. In other words, a broadcasting station (B B C in this case) which can be received in the area is selected. When the program selection key is depressed, the frequencies available in the local area are scanned corresponding to the frequency table F R Q D B L and a signal corresponding to the desired broadcasting station is selected. < Scan-receive job of the short-wave band used > This job is performed by pressing the upper key K + or the lower key K-. Once the key K + or K- is depressed while the power is switched off, C P U 3 1 causes the sub-frequency N to be accumulated or subtracted from 1 to become maximum 値 6 0 9 0 or minimum 値 5 5 0. -In this way, when the key K + or K — is depressed, the receiving frequency f RX is accumulated or subtracted by 5 Η Η z. Once the receiving frequency f RX is changed, it is determined whether a signal corresponding to the desired broadcasting station has been received corresponding to the detection signal S 1 9. When a signal corresponding to the desired broadcasting station is not received, the paper size of the receiving frequency applies the Chinese National Standard (CNS) A4 specification (210X297 cm). (Please read the precautions on the back before filling this page) '' Ordering · -16- Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention ") I f RX is changed. When the signal corresponding to the desired broadcasting station is received at the receiving frequency f RX, the frequency is divided. The accumulating / decreasing operation of N is stopped. As such, until a signal corresponding to a desired broadcasting station is received, the reception frequency f RX is changed at intervals of 5 kHz. When a signal corresponding to a desired broadcasting station is received, This signal is continuously received. In other words, a scan reception job is performed. ≪ Conclusion >. According to the receiver of the present invention, when a shortwave broadcasting station broadcasts a program at different shortwave frequencies around the world, the program selection key KB BC to KJ PN can effectively receive the program at the specific frequency in the local area. In this way, regardless of the area used by the receiver, one corresponds to a desired short-wave broadcast. The signal of the station can be easily programmed. Furthermore, the area used by the receiver is determined by time difference data. In this way, it is not necessary to specify the area used by the receiver. Furthermore, the manufacturer of the receiver does not need to The country in which the receiver is used is preset as the best receiving frequency. When the frequency table FRQTBL is stored in a removable memory such as a PC card for use with the receiver, even if the frequency of the short-wave broadcasting station is changed At this time, the frequency table FRQTB L can be easily updated. According to the first patent application scope of the present invention, when a shortwave broadcasting station broadcasts programs at different shortwave frequencies around the world, regardless of the area used by the receiver, A signal corresponding to a desired short-wave broadcasting station can be easily programmed at the best frequency. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions for the back and then fill out this page ) -17- A7 B7 V. Description of the invention k) According to the second patent application scope of the present invention, it is not necessary to specify the area used by the receiver. Furthermore, the manufacturer of the receiver does not need to be the receiver. The receiving frequency is preset for each country to be used. Although a specific preferred embodiment of the present invention is described with reference to the drawings, it should be understood that the present invention is not limited to this embodiment, Under the scope and spirit of the present invention as defined by the appended patent application scope, those skilled in the art can achieve many different changes and updates. ---------------,- ---- Line {Please read the precautions on the back ^ before filling out this page) The paper size printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -18-