經濟部t央樓準局貝工消費合作社印製 A6 B6 五、發明説明（1 ) ****技術領域**** 本發明揭示一種改良的捧型或掃瞄裝置以讀取光編碼 資訊，尤其是條碼資料。特別地，本發明揭示以利用光檢 波器及光發射器的裝置而讀取光編碼資訊，諸如條碼標籤 之光學系統。 ****技術背景**** 光編碼資訊，諸如條碼，已成爲十分普遍。一條碼系 統包含一連串的明和暗區域，典型地爲長方形的型式。喑 區域的寛度、條及/或在條之間的明空間的寛度表示編碼資 訊。此等元件的~特定數目及布置代表一字元。標準化的 編碼籌畫規範每~字元的布置，一符猇也可包含元件的可 接受的寛度以及空間、字元的數目，或是否符號長度改變 等等。 爲使一條碼符號解碼及摘要一合編碼的訊息，一條碼 讀取機掃瞄符號產生代表所掃瞄符號的一類比電氣信號。 已知各種的掃瞄器，掃瞄器可能是一棒型讀取機包含固定 地裝配在棒内的一發射器及一解碼器，在此倩形使用者手 動地移動此棒經過符猇。替代地，一光掃瞄器掃瞄一光束 ，諸如雷射光束經過符號，而一檢波器感测自符猇反射的 光。在任一情形，檢波器感測從掃瞄經過的符號的一點所 反射的光，而檢波器提供代表編碼資訊的類比掃瞄信猇。 —類位化裝置處理類比信猇而產生一脈波信號，在此 脈波等之間的寛度及空間對應於條等之間的條及空間的寛 度。類比化裝置做爲一邊緣檢波器或波型整形電路，]|~數 化裝S所設定的(1孝條緣。 82.3. 40,000 ,—----------------------------訂 線 (請先«讀背面之注意ί項再埸寫本頁) · ’ A. η Π Α6 Β6 绶濟部t央標準房员工消费合作社印製 五、發明説明（2 ) 臨限位準有效地定義信號的那一部分讀取機辨識爲一條或 一空間。 上述所討論的讀取機的型式是-頻道系統，具有單 一數位化裝置輸出及/或單一處理鍊而產生逼單一數位化輸 出0 來自數位化装置的脈波信號施加於一解碼器。解碼器 首先決定來自數位化裝置的信號的脈波寛度及空間。然後 解碼器分析此寛度及空間而找尋及解碼一合編碼的條碼訊 息。此包括分析來辨識合編碼的字元及順序，如適當編碼 標準所定義。此也可包括經掃瞄的符號符合的特殊標準的 一起始辨識。標準的辨識典型地稱爲自動鑑別。 不同條碼具有不同資訊密度及包含在一已知區域代表 編碼資料的不同的量内一不同數目的元件。碼愈密，元件 及空間愈小。在一適當的介質上較密的符號的印字是苛求 的而且比印字低解像度符猇是更昂貴。 條碼讀取機弗型地將具有一特定的，通常以其 、S 〜匕 ·*-'Ας---- / 有效的感測的點的大也來_轰示。建立讀取^解像度是用 發射器或解碼器的參數，用結合一發射器或者解碼器的孔 ，用建立發射器或解碼器的焦距及景深的光學系統，用數 位化裝置的臨限位準，用解碼器的程式規劃，或用此等元 件的二或更多種的結合。 在一雷射光束掃瞄裝置内，有效感測點可對應於光束 打擊到條碼上點處的光束大小。在一利用LED或類似裝置的 一棒内，此點大小能夠是此經照明的區域，或此點大小能 夠是解碼器有效地感測光反射的照明區域的部份。不管用 本紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公發） 82.3. 40,000 ——：---------------------装------.玎------線 (請先閲讀背面之注意事項再填寫本頁) · _ Α6 Β6 經濟部中央標準曷員工消费合作社印製 五、發明説明（3 ) 何種裝置此點大小的設定是爲一特殊的讀取機，光檢波器 將有效地平均經感測點的區域上所偵測到的光。 在一習用技術的例子中，如美國專利第4,675,531猇， — LED照明條碼而且在一光檢波器上形成碼的影像。光檢波 器的孔決定解像度或"點大小"。在該系統中，光檢波器有 效地平均經孔的區域所偵測的光。 一高解像度讀取機具有一小的點大小而能使高密度符 號解碼。然而高解像度讀取機會有正確地謓取低密度符號 的困難，因爲使用此等符號的較低品質的印字。此在點矩 陣型印字符號是特別地眞實。高解像度讀取機可以確實地 感測在一條之内的點寛度爲一個別的條元件。在對比中， —低解像度謓取機具有一大的點大小而且能使低密度符號 解碼。然而，對於諸如點矩陣符號的相對雜訊符號，一讀 取機讀取如此一寛點使得在同一時間點之内也許是一高解 像度的二或更多的條◊結果，一可共容點矩陣符號而具有 一低解像度的讀取機不能夠確實地讀取高密度符猇。因而 ，任何具有一固定解像度的謓取學肢只能屬要弯一声犋笋 圍的符號密度的條碼。 知的符猇密度，讀取機的解像度也限制工作角 度的範圔，即在此讀取機的軸及一正交於條碼所印字的表 面上的線之間的角度。假如此範圍及解像度太過限制，當 確實地掃描條碼時使用者會有困難來舒適地握持此讀取機 ，尤其是一棒型讀取機。此可能是特別地麻煩，如果此棒 併合額外的元件形成一集體資料終端機。大小、垂量及一 不舒適的角度會使得讀取大量的條磚資訊困難且擾人’而 {請先《讀背面之注意事項再填寫本頁> -裝- 訂· .線. 本^纸張尺度適用中國國家標準（CNS)甲4規格（210 X 297公釐） 82,3. 40,000 A6 B6 經 濟 部 中 央 摞 準 Mj 员 工 消 作 社 印 製 五、發明説明（4 ) 由此使使用者更抗拒使用條碼系統。 一解決對策可以是提供一些裝罱來調整解像度或感測 ^____-' 變麥博韵麗太小，即用謳整^鱼化裝^^臨限V然而此方 法需要在不同的解像度有許多不同的掃描。假如掃描是自 動的，解像度的蠻動產生一實質性損失，因爲掃描是在正 確的解像度處只是一減少的時間量。此一掃描將有效地在 一減低的速率的等値處掃描。假如讀取機是一種棒型裝置 ，解像度改變的每一時間使用者必需手動地使讀取機掃描 過資訊。此引起在第一次讀取速率的明顯的減少，而使使 用者增加挫折。 另一問題是包期屈，一大而重的手持式裝置 會使人產生疲勞。當使用掃描裝置產生疲勞或在某些情形 不方便時，使用者不願意操作此掃描裝置而使條碼系統所 計畫的資料收集目的遭到敗戰。 清楚地，一需求存在於能在一直廣雇遲避毛任角度_運 便κι二高、性難條喂吸讀機的读術抖及皞在 ' 复廣®晖單的 密摩謂取條碼。此一讀取機必霱儘量小且輕而且便於 在不同的位置長時間地使用。 ****發明的筒述**** 本發明的目的是提供一高性能的條碼讀取機，更方便 且有效率的使用，尤其是對非相當熟練的作業員的使用。 本發明的更特定的目的是條碼掃拣裝翬或讀 巷1_—.Μ虐巍提得jj名u：j：x的多訊。特別地，本發 明的目的是使用得自單一掃描的額外的資訊而在此棒及垂 直於條碼印字在其上的表面之間的較寛廣範圍的工作角度 (請先閲讀背面之注意事項再填寫本頁) —装. 訂. .線· 本纸張又度適用中囷國家標準（CNS)甲4規格（210 X 297公釐） 82.3. 40,000 經濟部中央標筚扇员工消费合作社印製 Α6 Β6 五、發明説明（5 ) ，以此棒獲得正確的讀取。更寛廣的工作角度範圍容許不 熟練的作業員在任何最方便而且舒適的角麽掃描此碼，而 第一次讀取仍然得到高百分比的成功。提供易於操作的特 點使在此棒併合其他額外的元件形成一處理、儲存及顯示 所掃描的條碼資料以及自鍵盤操作所建立進入的資料變得 特別重要。 爲使光掃描型式的讀取機更加舒適及便利地操作，本 .‘'、. 發B月進一歩的目的是提柄—種掃描裝置，專雙土輕， 由作業員握持的以及更加容易操作來掃描編碼資料。特別 地，發射器及解碼器以及結合的光組件必需儘量輕 的。 __—— 本發明的g—目產生具有太AiSLgI—種光掃描型 式的讀取機系統。此將進一步使運作目標在一寛廣的角度 範圍而且將允許作業員握持讀取機在自所掃描的資訊的文 ΐΜϋΜϋ獰圍。 本發明的号二|^利用自掃描所得的額外資訊來讀 取一較寛廣的光碼密度範圍的條碼服王憲多次的資訊掃描 。此允許一改良的讀取機替代以前所需的二或更多的讀取 機，其每一讀取機必需設計來謓取一限制條碼密度範圍的 條碼。對一相當低熟練的使用者此消除問題以及選擇一讀 取機及/或調整讀取機的靈敏度來匹配使用者要掃描的特別 碼的密度的挫折。 ****發明的概述**** 爲在一較寛廣工作角度範圍的操作，本發明使周 兩個轰赛_興點犋Μ光編磾資訊。當角度變動， 本纸張尺度適用中國固家標準（CNS)甲4規格（210 X 297公釐） 82.3. 40,000 ----Ί--------------------裝------訂------線 (請先閲讀背面之注意事項再蜞寫本頁) . 經濟部中央標率居R工消费合作社印製 A6 B6 五、發明説明（6 ) 一點必需充分地聚焦而提供一有效的讀取，如果任一點是 不充分的，自m吟奪訊通常能結合而確實地使資訊解碼 。爲增加景深，光組件提供兩明晰的焦點。 爲讀取一較寛的條碼解像度範圍，讀取機包括二讀取 頻道及自掃描二頻道的資料所得到單一有效的解碼結果。 典型地，一頻道將具有一對應於現在所掃描條碼密度之解 像度，但如不是，自每一頻道有效資料的部份能結合而提 供一單一確實的解碼結 在一觀點，本發由配合> 光檢波器及光學組含使用 ·-—.—一^ ^........•一’ 的改良的發射及光組合構成。發射及光的組合包括一模塑 的光學裝罱具有一光折射的前表面及一内部反射面配合提 供兩焦距◊諸如LED晶片的光發射器是埋設在模塑光學裝置 之内。 在另一觀點，本發萝射光的二取與光#射歹 盛測系統而照明光編碼資訊以及感測反射自光編碼資訊的 光。此系統包括一發射器、光學組合及光檢波器。發射器 及光學組合包含第一模塑光學裝置及埋設在模塑光學裝置 内的光發射晶片。光發射晶片經由模塑光學裝置發射光而 照明光編碼資訊。模塑光學裝置包含一有折射光前表面及 一内部反射表面共同提供二不同的焦距。 本發明包括許多不同的模塑光學裝罱。在詳細實施例 中，發射器及光學組合及光檢波器沿著一共同光軸對準。 視需要，本系統可進一步包括一透鏡及一孔沿相同的軸對 準。 在改良的光發射器内，組件的軸向對準及感測系統提 ------------------------裝------訂------線 (請先閲讀背面之注意事項再填寫本頁) ， . ^纸ί艮尺·度適用中國國家標準(CNS)甲4规格（210 X 297公釐） 82.3. 40,000 A6 B6 經濟部中央標準局貝工消費合作社印製 五、發明説明（7 ) 供一細長的，輕量的讀取機系統，使讀取機易於長時間操 作。提供發射光聚焦龙置的設計減少依賴額外 的透鏡而進一步減少重量，而且使掃描頭的構造及對準更 简單。此兩焦點提供一大的录深允許使用在自編碼資訊的 —較寛的距離範圍及一較寛的工作角度的範圍。 詳細實施例使用包括一具有第一及第二有效光感測區 的光偵測半導體晶片的一改良多頻道光檢波器。第二有效 光感測大致上包圍著第一光感測區。 ··— ....... ......... — . . 本發明的範圍内使用此改良的光發射及感測系統組合 在單一頻道掩盟條揭讀取機内，但是在痒細實施Jij中，此 改良的光發射及感測系統是用於雙頻遂潘統。 雙頻道系統實施例也可包括上述討論的多頻道光檢波 器。此雙頻道系統進一步包括裝置響應來自爲取得對於編 碼資訊的毎一掃描或通過二頻道的資料的光感測光檢波器 的至少一電氣信號。此資料二頻道具有二不同的解像度， 其一高於另一。解碼器響應取得資料的兩頻道而產生代表 感測的光編碼資訊的單一資料輸出。/ 本發明包含許多^/5 像β Μ頻\道。例如，在最簡單的實施例 中，在此棒型讀取機包括LED光源及單一光二極體型檢波器 ，檢波器的信猇通過二不同的信猇條件電路及結合的數位 化裝置。一信猇條件電路及結合的數位化装置提供 像度輪出，而其他信號條件電路及結合的數位化裝置產生 <一低解y度輸出。一微處理機分析來自兩頻道的數位資料 使禱4編碼資料解碼。兩解像度頻道允許以單一條碼讀 (請先閲讀背面之注意事項再填寫本頁) 丨裝· 訂_ .線. 本紙張尺度適用中圉國家標準（CNS)甲4規格（210 X 297公货） 82.3. 40,000A6 B6 printed by the Beigong Consumer Cooperative of the Central Bureau of the Ministry of Economic Affairs V. Description of the invention (1) **** Technical field **** The present invention discloses an improved handheld or scanning device to read optically encoded information , Especially barcode information. In particular, the present invention discloses an optical system that reads light-encoded information, such as barcode labels, using devices that use photodetectors and light emitters. **** Technical background **** Optical coding information, such as barcodes, has become very common. A bar code system contains a series of light and dark areas, typically in a rectangular pattern. The width of the area, the width of the bar and / or the clear space between the bars represent the coding information. The ~ specific number and arrangement of these elements represent one character. The standardized coding plan regulates the arrangement of each character, and a symbol can also contain the acceptable degree and space of the component, the number of characters, or whether the symbol length changes, and so on. In order to decode a bar code symbol and summarize the encoded information, the bar code reader scans the symbol to generate an analog electrical signal representing the scanned symbol. Various scanners are known. The scanner may be a stick-type reader including a transmitter and a decoder fixedly mounted in the stick. Here, the Qiang user manually moves the stick past Fu Xun. Alternatively, a light scanner scans a light beam, such as a laser beam, passing through the symbol, and a detector senses the light reflected from the fu. In either case, the detector senses the light reflected from a point of the symbol passed by the scan, and the detector provides an analog scan signal representing the encoded information. -The quasi-biting device processes the analog signal to generate a pulse wave signal, where the width and space between the pulse waves and the like correspond to the width and width of the bars and spaces between the bars and the like. The analog device is used as an edge detector or wave shaping circuit,] | ~ The number set by the conversion device S (1 孝 条 缘. 82.3. 40,000, ---------------- ------------- Reservation (please first «read the note on the back and then write this page) · 'A. η Π Α6 Β6 綶 济 部 tCentral Standard Room Staff Consumer Cooperative Print System V. Description of Invention (2) The limit level effectively defines the part of the signal that the reader recognizes as one or a space. The type of reader discussed above is a channel system with a single digitizer output and And / or a single processing chain to generate a single digitized output Find and decode the bar code information of a co-coded by the degree and space. This includes analysis to identify the characters and order of the co-coded, as defined by the appropriate coding standards. This can also include the special standards that the scanned symbols meet Initial identification. Standard identification is typically called automatic identification. Different barcodes have different The same information density and the inclusion of a different number of elements in different quantities representing a known area of coded data. The denser the code, the smaller the element and space. The printing of denser symbols on an appropriate medium is demanding and It is more expensive than printing low resolution fu. The barcode reader will have a specific type, usually with its, S ~ d · *-'Ας ---- / the size of the effective sensing point also comes _Hang. The reading resolution is established using the parameters of the transmitter or decoder, the aperture combined with a transmitter or decoder, the optical system that establishes the focal length and depth of field of the transmitter or decoder, and the digital device. The limit level is determined by the programming of the decoder, or a combination of two or more of these components. In a laser beam scanning device, the effective sensing point can correspond to the point where the beam hits the barcode The size of the beam. In a stick using LEDs or similar devices, this point size can be the illuminated area, or the point size can be the part of the illuminated area where the decoder effectively senses the light reflection. Applicable paper size China National Standard (CNS) A 4 specifications (210 X 297 public) 82.3. 40,000 —— ： --------------------- installed ---- . 玎 ------ line (please read the precautions on the back before filling in this page) · _ Α6 Β6 Printed by the Ministry of Economic Affairs, Central Standard Employee Consumer Cooperative V. Invention description (3) What kind of device is this size? Set as a special reader, the photodetector will effectively average the light detected on the area passing through the sensing point. In an example of conventional technology, such as US Patent No. 4,675,531, LED lighting barcode Furthermore, the image of the code is formed on a photodetector. The aperture of the photodetector determines the resolution or "dot size". In this system, the photodetector effectively averages the light detected through the area of the hole. A high-resolution reader has a small dot size to enable decoding of high-density symbols. However, high-resolution reading opportunities have the difficulty of correctly capturing low-density symbols because of the lower quality printing of these symbols. This dot-matrix-type stamp is particularly impressive. The high-resolution reader can surely sense the dots within a strip as another strip element. In contrast, the low-resolution scanner has a large dot size and can decode low-density symbols. However, for relative noise symbols such as dot matrix symbols, a reader reads such a point so that at the same time point it may be a high-resolution two or more bars ◊ result, a common point A matrix symbol and a reader with a low resolution cannot reliably read high-density symbols. Therefore, any student with a fixed resolution can only belong to a bar code symbol density bar. The known density of characters and the resolution of the reader also limit the range of working angles, that is, the angle between the axis of the reader and a line orthogonal to the surface printed by the bar code. If the range and resolution are too limited, the user will have difficulty in holding the reader comfortably when scanning the bar code, especially a stick-type reader. This may be particularly troublesome if the stick incorporates additional components to form a collective data terminal. The size, sag and an uncomfortable angle will make reading a lot of brick information difficult and disturbing 'and {please first "read the precautions on the back side and then fill out this page > -install- order · .line. This ^ The paper scale is in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 82,3. 40,000 A6 B6 Printed by the Ministry of Economic Affairs Central Stack Mj Employee Disposal Agency V. Invention Instructions (4) Those who resisted the use of bar code systems. A solution can be to provide some decoration to adjust the resolution or sensing Scan. If the scanning is automatic, the brute motion of the resolution produces a substantial loss because the scanning is only a reduced amount of time at the correct resolution. This scan will effectively scan at a reduced rate of equal values. If the reader is a stick-type device, the user must manually scan the reader every time the resolution changes. This caused a significant decrease in the first reading rate, and increased frustration for the user. Another problem is that the contraction of flexion, large and heavy handheld devices can cause fatigue. When the use of the scanning device causes fatigue or is inconvenient in some situations, the user is unwilling to operate the scanning device and defeats the purpose of data collection planned by the barcode system. Clearly, there is a demand that can be widely employed to avoid the Mao Ren angle. . This reader must be as small and light as possible and easy to use for long periods of time in different locations. **** Brief description of the invention **** The object of the present invention is to provide a high-performance barcode reader, which is more convenient and efficient to use, especially for unskilled operators. A more specific object of the present invention is to scan and load barcodes or read lane 1_ .. In particular, the purpose of the present invention is to use additional information from a single scan and a wider range of working angles between the bar and the surface perpendicular to the bar code printed on it (please read the notes on the back first (Fill in this page) — Binding. Order. Line · This paper is also applicable to the China National Standard (CNS) A 4 specifications (210 X 297 mm) 82.3. 40,000 Printed Α6 by the Ministry of Economic Affairs Central Standard Fan Employee Consumer Cooperative Β6 Fifth, the description of the invention (5), to get the correct reading with this stick. The wider working angle range allows unskilled operators to scan the code at any most convenient and comfortable angle, and the first reading still obtains a high percentage of success. Providing easy-to-operate features makes it particularly important to combine the additional elements with this bar to process, store, and display scanned bar code data and data created from keyboard operations. In order to make the optical scanning type reader more comfortable and convenient to operate, the purpose of this book is to lift the handle-a kind of scanning device, which is special for both soil and light, held by the operator and more Easy to operate to scan coded data. In particular, the transmitter and decoder and the combined optical components must be as light as possible. __—— The g-mesh of the present invention produces a reader system with too AiSLgI-a variety of optical scanning types. This will further enable the operating target to be in a wide angle range and will allow the operator to hold the text of the information scanned by the reader in the surrounding area. The number two of the present invention uses the additional information obtained by self-scanning to read a wide range of optical code density barcodes serving Wang Xian for multiple information scans. This allows an improved reader to replace the two or more readers previously required, each of which must be designed to capture a bar code that limits the range of bar density. For a fairly low-skilled user, this eliminates the problem and the frustration of choosing a reader and / or adjusting the sensitivity of the reader to match the density of the particular code the user wants to scan. **** Summary of the invention **** For operation in a wider range of working angles, the present invention enables the two games to be played every week. When the angle changes, the size of this paper applies to China Gujia Standard (CNS) Grade 4 (210 X 297 mm) 82.3. 40,000 ---- Ί ---------------- ---- Installed ------ Ordered ------ Line (please read the notes on the back before writing this page). Printed A6 B6 by the Central Standard of the Ministry of Economic Affairs R and Consumer Cooperatives 5. Description of the invention (6) One point must be fully focused to provide an effective reading. If any point is insufficient, self-intelligence can usually be combined to decode information reliably. To increase the depth of field, the light module provides two clear focal points. In order to read a wider range of bar code resolution, the reader includes two reading channels and self-scanning the data of the two channels to obtain a single effective decoding result. Typically, a channel will have a resolution corresponding to the density of the bar code scanned now, but if it is not, the portion of valid data from each channel can be combined to provide a single definitive decoding view. ; The photodetector and the optical group include the use of the improved emission and light combination. The combination of emission and light includes a molded optical device with a light refracting front surface and an internal reflective surface that cooperate to provide two focal lengths. Light emitters such as LED chips are embedded in the molded optical device. In another point of view, the dichotomy and light of the light emitted by the present invention are used to measure the illumination light encoding information and sense the light reflected from the light encoding information. This system includes a transmitter, optical combination and photodetector. The emitter and optical combination include a first molded optical device and a light emitting wafer embedded in the molded optical device. The light emitting chip emits light through the molded optical device to illuminate the light to encode information. The molded optical device includes a front surface with refracted light and an internal reflective surface that together provide two different focal lengths. The present invention includes many different molded optical finishes. In a detailed embodiment, the transmitter and optical combination and photodetector are aligned along a common optical axis. If necessary, the system may further include a lens and a hole aligned along the same axis. In the improved light emitter, the axial alignment of the components and the sensing system are provided ---------------------------------------- Order --- line (please read the precautions on the back before filling in this page). ^ Paper size and degree apply to China National Standard (CNS) Grade 4 (210 X 297 mm) 82.3. 40,000 A6 B6 Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of invention (7) Provides a slender, lightweight reader system that makes the reader easy to operate for a long time. The design that provides focusing of the emitted light reduces the need for additional lenses to further reduce weight, and makes the construction and alignment of the scanning head simpler. These two focal points provide a large recording depth that allows the use of self-encoded information-a wider range of distances and a wider range of working angles. The detailed embodiment uses an improved multi-channel photodetector including a light detection semiconductor chip having first and second effective light sensing regions. The second effective light sensing substantially surrounds the first light sensing area. ···................ .. Within the scope of the present invention, this improved light emission and sensing system combination is used in a single channel mask strip reader, but In the iterative implementation of Jij, this improved light emission and sensing system is used for dual-band PAN Tong. The dual channel system embodiment may also include the multi-channel optical detector discussed above. The dual-channel system further includes means for responding to at least one electrical signal from the light-sensing photodetector for obtaining a scan of the encoded information or passing through the data of the two channels. The second channel of this data has two different resolutions, one of which is higher than the other. The decoder generates a single data output representing the sensed optical coding information in response to the two channels from which the data was obtained. / The present invention contains many ^ / 5 like β Μfrequency \ channels. For example, in the simplest embodiment, the rod reader includes an LED light source and a single photodiode detector. The detector's signal passes through two different signal condition circuits and a combined digital device. A signal conditional circuit and a combined digitalization device provide the image round-off, while other signal conditional circuits and the combined digitalization device produce < a low resolution y-degree output. A microprocessor analyzes the digital data from the two channels to decode the Prayer 4 encoded data. Two resolution channels are allowed to read with a single bar code (please read the precautions on the back before filling in this page) 丨 Installation · Order_.Line. This paper scale is applicable to the China National Standard (CNS) A 4 specifications (210 X 297 public goods) 82.3. 40,000
•I •I 經濟部中央標筚居負工消费合作社印製 Α6 Β6 五、發明説明（8 ) 取機的單一通過或掃描來讀取諸如用點矩陣列表機所產生 的密高解像度條碼及低解像度條碼。 替代地，在使用具有兩有效感測區的檢波器晶片的實 施例中，來自内有效區的信猇代表高解像度資訊。從兩有 效區來的信號總合產生一代表低解f度的信號。二頻道的 信號通過二不同信猇條件霄路及結合的數位化裝罱。數位 化裝置等基本上具有相同的特性。因爲不同的感測區用於 產生信號，一數位化裝罱將提供一高解像度输出，而另一 數位化裝置將產生一低解像度輸出。再者，一微處理機分 析來自兩頻道的數位資料使掃描的條碼資料解碼。 任一系統用於得到兩頻道，微處理機能分析自每—頻 道的資料，辨識產生一有效的解碼結果而且選擇取得自此 頻道的合成資料成爲輸出資料。解像度不匹配目前所讀取 的條碼密度的頻道將產生一可辨識的讀取鍺誤。 替代地，微處理機自兩頻道的資料而產生單 —有效的結果，甚至没有兩分開的頻道任一單獨產生—有 效的讀取。微處理機辨識來自每一頻道的讀取資料的那— 部份在可接受的參數内以對應的解像度的謓取運作。微處 理機拋棄來自兩頻道的任何出現在可接受限度之外的資料 。微處理機結合來自兩頻道的可接受部份的資料形成單— 最後有效的讀取結果。 高性能條碼棒將具有下列特點： **内藏解碼器； **最普遍的符猇標記的自動鑑別； **大解像度範圍（從低到高密度條碼，即自一印字良好到點 本纸張尺度適用中國國家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 ------------------------裝------#------線 <請先聞讀背面之注意事1再蜞寫本頁) · . 2 14590 A6 B6 缦濟部中夹標準房Λ工消费合作社印製 五、發明説明（9 ) 矩陣條碼$5-20密爾1 ； **易於在塑膠或叠合片上讀取。 當發射器一檢波器模組具有一較高的景深及—可變動 的”點大小"時，上述技術需求是能滿足的。例如，讀取塑 膠或叠合片，通常需要*而讀取點矩陣條碼也需 要如0.5mm大的點大小。 除目的之外，本發明的優點及新穎的特點有一些將在 隨後的説明發表，而對習於本技術的專家在檢視下文或由 本發明的實用中所知道的明顯的變化。在申請專利範圍内 所指出的工具及結合本發明的目的及優點是可以實現及得 到的。 ****圖面的簡述**** 圖1是一條碼掃描期間内本發明實施的一棒型條磚閲讀 機的等角圖解説明。 圇2爲圖1所示的棒的不同工作角度的二有效的感測點。 圖3Α及3Β圖解經過條碼的感測點的掃描。圖3Α所示爲 本發明的二有效感應點當其等通過一相對地高密度 的整體條碼符猇。圖3Β所示爲二有效感應點當其等 通過一低密度點矩陣型符號的單一條碼元件。 圖4是使用不同解像度數位化裝置的雙頻道實施例的方 塊電路圖。 圖4Α爲以掃描一條碼而產生在圖4電路的一高解像度條 碼及信號。 圖4Β爲以點矩陣列表機所印字的雜訊條碼及以掃描此 —條碼而在圖4電路產生的信猇。 (請先閲讀背面之注意事項再填寫本F) 丨裝 訂· •線. 本纸張尺度適用中國國家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 經濟部中央標準房貝工消费合作社印製 五、發明説明（10) 圖5圖解本發明的光發射感測系統的横斷面圖。 圖6以横断面圖圖解説明使用一環形透鏡在發射器和光 學組合周圍的本發明的光發射及感測系統的修改形 式0 圖7到1〇説明用於圈5或圖6的光發射及感測系統的發射 器及光學組合的各種的構造。 圖11是具有一個包圍另一個的兩有效區的光檢波器的 簡化平面圖。 圖12爲利用一發射器及圖11的二區型光檢波器的雙頻 道系統的另一實施例的方塊電路圖。 圖13及14是圖11的光檢波器的特定實施例的更詳細的 圖示。圖I3所不爲一圖形區及達接到通過經由包圍 有效區的絶緣通道的中間區。圖14所示爲一長方形 區及具有一引出線從包圍的有效區通過在中間區的 —搭接襯墊的使用。 圖15是一流程圖圈解以此流程解碼器自不同的解像度 的二資料流得到單一的合法的結果。 圖16圖解説明一放大的條碼及在兩>頻道中所得信號供 在圖15過程的掃描併合演算部份處理。 ****本發明實施的最佳模態**** 圖1及2説明一條碼的掃描及本發明如何使一工作角度 的範圍增加，特別對一棒型讀取機而言。圖1所示一棒型條 碼讀取機10經手動地掃描過條碼20。如圖1所示，工作角度 Θ定義爲在棒10的主軸及一正交於編碼資訊所在表面上的 線之間的角度。棒10顯示在位置b,在此點Θ角度約4S度。 本纸張尺度通用中aa家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 (請先《讀背面之注意事項再填寫本頁) .裝· 訂· 線· 經濟部中央標準居员工消费合作社印製 A6 B6 五、發明説明（11 ) 然而，棒可以握持在一寛的角度範圔，諸如0度位置或如圖 1中所圖示的位罱a和C。 棒10的的光發射及檢波的元件布置成產生二不同直徑 的有效感测點si和S2。圖2所示在不同工作角度0的二感測 點的不同直徑及形狀β在0度位置，感測點S1及S2兩者基本 上是同心圓。因角度Θ經由位置a、b及df加，然而，二點 si和S2拖尾且擴大形成前進地較大的椭圖。 假如讀取機是一棒型裝置，使用者手動地移動棒經過 條碼來掃描兩感測點。此產生（i)一感测的光編碼資訊當通 過第一有效感測點而産生第一感測信號，及（ii)一感測的 光編碼資訊當通過第二有效感應點而產生第二感測信號。 在掃描一條碼或其他光編組資訊期間，第一及第二感 測點S1及S2掃描過光編碼資訊。圖3A所示爲一相對地小工 作角度Θ點S1及S2掃描過一條碼20。使用者在全程掃描長 度保持工作角度近於或等於0度，而且點S1及S2兩者基本上 保持爲圆形。 如使用者改變工作角度，則感測點S1及S2的大小及形 狀改變如圖2中圖解説明的情形。第一及第二有效感測點S1 及S2的直徑增加成比例於在工作角度的增加。本發明得到 寒訊狹二感測fijl及S2所#的感測信號的光編碼 寒吗的表。對不同工作角度，至少有效感測點 之一大小是適當的而產生一光編碼資訊的有效讀取。 對一相對地低密度碼，0度工作角度可提供如圖2所示 的適當大小的一大圓感測點S1。較小的點S2事實上對於一 些雜訊印字碼諸如點陣式印字碼是太小。在一稍微較大角 本纸張尺度適用中國國家標準（CNS)甲4规格（210 X 2耵公釐） ------------------------裝------.玎------線 <請先閲讀背面之注意事項再填寫本頁) . A6 B6 214590 五、發明説明（12 ) 度，諸如在b處，兩者可提供至少一些可讀取的資訊，其可 併合提供單一合編碼的解碼結果。當工作角度Θ增加，點 S1及S2伸長如圖2所示在C和d處。在許多的角度，雖較大點 S1蠻得太大，但較小點S2將有一適當的直徑。 圖3A所示點S1和S2掃描過一相對地高密度條碼20。因 工作角度近於或等於〇度，點S1和S2兩者基本上是圆。在高 密條碼掃描的一些點，特別在圖示的中間兩位置，較大感 測點S1涵藎兩或更多元件。在此一區域的平均將不提供正 確的信號指示此小條碼元件的邊緣。然而，較小直徑點S2 涵蓋如此小區域以致甚至在此等位置其涵只蓋一狹小元件。 圖3B圖示點S1及S2掃描過一點陣式條碼的一元件23。 如所示，元件23事實上顯示在個別點之間的間隙。感測此 小點S2將偵測此點爲暗區而間隙爲明區。例如在圖3B所示 的位置，點S2大約和間隙之一一致。結果，響應點S2的感 應信猇在此點將指示一明空間，而不是暗條元件。因而點 S2的感測將不確實地讀取元件23的寛度◊然而，點S1愈大 將產生一合編碼的解碼結果。利用點S1測平均經此點的較 大區的反射光將指示一暗元件。 圖4所示是本發明雙頻道系統第一實施例，此是最簡單 的技術來產生具有二不同的解像度或掃描點的兩頻道。此 實施例以利用具有不同解像度的數位化装置得到二不同解 像度。讀取機可能是一自動的掃描裝置或一需要手動掃描 的棒型裝置。爲簡化，將假設討論的電路爲一手動掃描棒 型的讀取機。 圖4實施例具有單一光源、發光二極體或LED 41及單一 本纸張A度適用中國國家標準（CNS)甲4规格（210 X 297公釐） ------------------------裝------訂------線 . * _ - (請先閱讀背面之注意事項再填寫本頁) 诶濟部中典標準扃負工消費合作社印製 82.3. 40,000 214咖 A6 B6 經濟部中央標準居员工消費合作社印製 五、發明説明（13) 光檢波器，光二極體"PD"42。LED 41發射光照明光編碼資 訊的表面區條碼2〇。PD 42感測自條碼2〇反射的光而產生代 表反射光的振幅類比信猇。讀取機掃描條碼，如讀取機是 一棒型，則使用者手動地使此棒通過資訊致使偵測到的反 射光振幅變動對應於資訊的明及暗區。 自PD 42的類比信號經放大、反相且以二類比信號條件 電路43及44爲條件。信號條件電路43及44基本上是相同的 且因而提供兩類比输出信號。二输出信號之一傳到第一數 位化裝屋45,另一傳到第二類位化裝罱46。數位化裝置45 及46用做爲一邊緣檢波器或波形整形電路，類似使用於習 用技術單一頻道型讀取機的一種方式。在每歆位裝置45及 46，以及數位化裝置設定的臨限値決定什麽部份的類比信 號代表條緣。然而數位化裝置45及46具有不同的臨限値。 自兩類位化裝罱45及46的脈波信猇輸出供到一程式化 微處理機型解碼器47的输入。信猇條件電路43及數位化裝 置45形成第一頻道提供第一資料流到解碼器47。信號條件 電路44及數位化裝置46形成第二頻道提供第二資料流到解 碼器47。第1數位化裝置43的臨限設定相對地低在如圖4A及 4B所示T1處，以致數位化裝置43將有一低解像度。第二數 位化裝置46有一高臨限T2且是靈敏的。 圖4所示一高解像度條碼及以掃描此條碼產生在圖4的 電路的信猇。類比信號隨反射光的平均變動，且如條件的 將有小變動對應近的間隔條。第1數位化裝置45的低臨限將 產生一些變動，如圖4A*示不爲自數位化裝置45所偵測。 具有高解像度的第二頻道將偵測以此近的間隔條元件所產 {請先閱讀背面之注意事¾再場寫本頁，> _裝· 訂. 線· 本纸張;?適用中國國家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 經濟部中央標準曷W：工消费合作社印製 Α6 Β6 五、發明説明（14) 生的反射光内小變動固爲靈敏的數位化裝置46將檢出在類 比信號内的小碰撞。高解像度第二頻道將產生如圖所示 自數位化裝置的一脈波列輸出，更接近對應的條碼緣。 圖4B所示一點陣型的低解像度條碼及以掃描此一條碼 所產生在圖4電路的信猇。此類比信猇隨反射光的平均變動 ，且如條件的，將有小變動對應於矩陣的點。類比信號將 有較大變動對應於符猇的實際的元件。第一數位化裝置45 内的低臨限將產生類比信號的較小變動而不爲如圖4B所示 自數位化裝置45的脈波信號所偵測。低解像度第1頻道將產 生一脈波列輸出自數位化裝置45接近對應的條碼緣。對比 地，具有高解像度的第二頻道將偵測在條元件之間此間隔 點所引起反射光的小變動，因爲靈敏的數位化裝置46將檢 出類比信號的小碰撞。如圖4B所示自數位化裝置46的脈波 信號將不對應條元件的實際的邊緣。 明顳地從圖4A及4B對高解像度條碼或低解像度條碼， 兩頻道之一將產生一脈波信猇輸出或資料流接近對應的所 掃描條碼的邊緣。除了具有二輸入而不是一輸入之外對二 不同解像度頻道的二資料流，解碼器47是一相對地標準單 元。集體解碼器47提供一例如ASCI格式的數位化資料輸出 〇栲室之J麦將乂.¾声是ΐ關鼓®U5及16 〇 —廣泛各種的技術可用於得到二資料頻道。每一實施 例中系統將自二不同解像度頻道提供二資料流到單一解碼 器47。解碼器47保持相同。 圖5到10圖解説明對改良的讀取機的光學系統的各種實 施例，尤其是當謓取機構造成一棒型裝罱的形式時。習用 本紙張尺渡適用中國國家標準（CNS)甲4規格（210 X 297公釐） 82.3. 40,000 ------------------------裝------，玎------線 (請先閲讀背面之注意事項再填寫本頁) · A6 B6 五、發明説明（15) (請先H讀背面之注意事項再填寫本頁) 或非習用兩者的光組件都用於手持式掃描裝置或棒的光装 置的構件而讀取光編碼資料，尤其是條碼資料。以軸向對 準發射器及檢波器及其結合的光組件，因此此棒能是特別 地小且狹窄以便使用者易於握持及操作。 圖5所示爲本發明光組件第一實施例的一横斷面圖。在 對光讀取編碼資訊的光發射及感測系統11包含基本上四軸 向對準組件，LED發射器及光學組合12，聚光透鏡13在組合 12,光檢波器15及在透鏡I3及光檢波器15之間的孔14° 在LED發射器及光學組合12内之LED晶片用做爲如圖4電 路的LED41。一條碼符號2〇經來自LED發射器及光學組合12 的光所照明。透鏡13收集反射自條碼符號20的背散射光而 聚光在孔14。孔14限制景深大小及系統的解像度。光檢波 裝置15放置在孔14之後。 光檢波器及光學組合15可以是一模塑塑膠光學裝置内 具有一有效區的一般的檢波器晶片。檢波器組合15對單一 檢波型條碼棒用做如圖4電路内的光檢波器42。替代地，光 檢波器15可用具有二有效區的檢波器晶片，將在之後説明 相關於圖11到14。 圖6圖解説明本發明學組合的另一實施例，如同圖5 V__ 烴濟部中央標準居工消费合作社印製 所示。圖3所圖解的光發射器及感測系統11提供一更緊密的 構造。在此實施例中，在圖5—環形透鏡I3'用來替代聚光 透鏡13。圖5及6的LED發射器12是GaAs幕晶晶片和一些模塑 光學組合的組合，説明如下。 圖7圖解説明LED發射器及光學組合412的第一實施例； 其向外外觀所示在此圖的415。 82.3. 40,000 本紙張又度適用中國國家標準（CNS)甲4规格（210 X 297公釐） 經濟部中央標準居8工消費合作社印製 五、發明説明（16) ’圖70^D發射器及光學組合412包含-用射出成型的光 塑膠製成的光學裝置420及埋設在此裝置軸上的裝置42〇内 的一片LED晶片421。光學裝置是模造具有二光學表面。第 一光學表面是一球狀介面422形成在光學裝罱42〇的前面， 而第二光學表面是以光學裝置420的曲線側壁423來形成。 側壁423的曲度相同於用在光聚光器内且致使光學裝置42〇 由前向後變狹小或向前介面表面422成錐形。 前面的球形介面422使來自LED 421的平行軸光聚焦在 點P2上。自LED 421的光425經過光學裝置420的偏軸區打到 側壁423，反射回到球狀介面422且以介面422使聚焦在點P1 上。在點P1及P2之間的區域是景深。側壁423的曲線是根據 對一特殊條碼讀取使用所需的景深來設計。 圖7的光學組合412的外部形狀結構415包括一球狀前光 學介面及一内部反射曲線側壁。一金屬塗膜涵羞至少一部 份的外部415的曲線側壁，如圖之點線所示。 圖8圖解説明LED發射器及光學組合的第；1實施例。圖 8的LED發射器及光學組合512大體上相同於圖7的組合412。 然而，組合512包含一轉動180度面對組合512背部的LED晶 片521。LED晶片521位翯在内部反射拋物線反射鏡526的焦 點形成在光學裝罱520的背表面上。一金屬塗膜可涵蓋拋物 線反射鏡526的外表面，如圖點線所示。拋物線反射鏡526 轉換來自LED 521的光成爲向前導引平行光。平行光的球介 面522使平行軸部份聚焦在點P2上。平行光偏軸部份先由曲 線側壁523反射，然後球介面522使其聚焦在點P1上。在點 P1及P2之間的區域是焦點景深。圖8的左手側上的515所示 本紙張尺度適用中國酉家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 •丨-Γ--------------------装------訂------線 (請先閲讀背面之注意事項再填寫本頁) ·. A6 B6 五、發明説明（17) <請先閲讀背面之注意事項再填寫本頁) 爲所述光學組合的向外外觀。 圖_9説明LED發射器及光學組合的第三g施例。組合612 的構造相同於圖5所示的構造；然而編9實^例的側壁623不 苒是曲線的。側壁623是圓柱體而以此形成直線平行於軸。 而且，圖9声二片LED晶片《I及Ml'爲較高發光來照明目標 。LED晶片621面向光學裝置62〇的背處且位罱在形成光學裝 罱的背面内部反射拋物線鏡626上。再者，金屬塗膜可涵蓋 拋物線鏡的外表面，如點線所示。拋物線鏡626轉換自led 621的光成爲平行光。LED Ml'位罱在向前發射光直接朝在 光裝置62〇前面上的曲線介面622。曲線介面622使自面向前 的LED 621'的發散平行軸光聚焦在？2。曲線介面622也使自 拋物線鏡626的平行光面向後LED 621聚焦在點P1。點P1及 P2在自模塑光學裝置62〇的前面不同的距離處而且在P1及P2 之間的空間是景深。上述光學組合的向前外觀所示在圖9左 側上的615° $ 圈常造相同於圖9。兩構造的不同是圖έ的LED發射 器及光學組合612的前球面621改變成圖1〇的LED發射器及光 學組合712的一軸錐722。 經濟部中央標準局员工消费合作社印紫 圖10所示一面向光學裝置72〇背部的單一LED晶片721。 晶片721位置在形成在光學裝置背面的拋物線鏡726的焦點 上。再者，金屬塗膜涵蓋拋物線鏡的外表面，如點線所示 。軸錐面722使通過光學裝置中間部份的光聚焦在第1焦點 P1,且軸錐使通過光學裝置的偏軸部份的光聚焦在第2更遠 焦點P2。雖所示以單一面向後的LED晶片，但發光器及光學 組合712可包括一面向前第二晶片同圖9所不晶片621'相同 82.3. 40,000 本纸银又度適用t國國家標準（CNS)甲4规格（210 X 297公釐） A6 B6 經濟部中央標準曷負工消费合作社印製 五、發明説明（18) 的方式。上述光學組合的向外外觀所示在圖10的左側上的 715。 到此點，詳細實施例已包括一標準光檢波晶片，而每 -____ —光發射及感測系統將用於單一發射器單一檢波型電路諸 如圖4所示。另一方法產生兩頻道資訊是用一具有二分開有 效感測區的晶片代替圖5及6的光檢波器及光學組合的單一 檢波晶片，如下。 圖11是一具有兩有效區的一光檢波器的簡化平面圖’ 一個包圍另一個，如所示一黑影中心圓的有效區#1及所示 —交叉斜線包圍區的有效區#2。此實施例的光檢波器的構 造關於圖13及14將在下文更詳細討論。此光檢波器的特點 是形成一多頻道檢波系統。此多頻道檢波系統包含一在基 體上的第1有效光感測區及形成在同一基體上的第二有效光 感測區。第二光感測區位置在該第一光感測區周圍。每一 有效光感測區以及罱在下面的基體一起形成一光檢波器。 此光檢波器用於如圖12所示本發明實施例的電路。圖12的 電路中，信號條件電路及數位化裝置功能同圖4實施例的相 同方式。圖11及I2的實施例基於兩有效區D1及〇2的不同光 感測性質產生兩不同光頻道，而不是利用不同解像度的數 位化裝罱，如圖4實施例。圖I2所示高解像度頻道，包括第 二數位化裝置爲上頻道而第一頻道爲下頻道。 在此實施例，有一光發射元件41及兩光檢波器。一光 發射元件41將包含圖5到10的任何發射及光學組合3·2、412 、512、612或712之1°光檢波器包含埋設在圖5及6的光檢 波器及光學組合1S任何之一内做爲一半導體偵測型晶片上 <請先閲讀背面之注意事項再塡寫本頁) .装. 訂- .線· 本纸張A度適用t國S家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 A6 B6 經濟部t央標準局R工消费合作社印製 五、發明説明（19) 單一晶片上的圖11所示此單元的有效感應區。圖12中D1表 示包括有效區#1，中問有效區的感測器或光檢波器。D2表 示包括有效區#2,包圍有效區的感測器或光檢波器。LED 41發射光照明光編碼資訊。光檢波器D1及D2接收反射自條 碼20表面的光。 檢波器D1將產生一有效代表經小有效區D1上所接收的 反射光的平均的類比信猇。此信猇即使使用小有效區的光 二極體也是相同，而且有效區建立高解像度頻道的點大小 及/或解像度。 光檢波器12將產生有效代表經此較大包圍有效區D1所 接收的反射光的平均的類比信號。自D1及D2的類比信號以 相加電路132相加。自D1及D2類比信號的約近於較大的光二 極體所產生的信號，即經區#1加區#2的總有效區所接收的 反射光的平均。信號條件電路133接收自相加器132的合信 號並且使條件如上述。自條件電路133的信號以數位化裝置 I34使數位化形成低解像度資料流。因而，檢波器D1及D2、 相加器132、信號條件電路133及第一數位化裝置134形成此 實施例的低解像度第一頻道。信號條件電路137接收向D1信 猇並且使條件如上討論的。自條件電路137的信猇以數位化 裝置138使數位化形成高解像度資料流。因而，檢波器D1、 信號條件電路137及第二數位化裝置形成本實施例的高解像 度第二頻道。如前所討論實施例同樣方式，檢波器接收對 處理來自數位化裝置134及138的脈波信號。 以加上額外的包圍區及對應相加器、信號條件電路及 數位化裝置來增加利用圖11的光檢波裝置所得到的不同解 (請先閱讀背面之注意事項再填寫本頁)• I • I Printed Α6 Β6 by the Ministry of Economy Central Standard Consumer Labor Cooperative V. Invention description (8) Single pass or scan of the machine to read dense high-resolution barcodes and low codes such as those produced by a dot matrix lister Resolution barcode. Alternatively, in an embodiment using a detector chip with two effective sensing areas, the information from the inner effective area represents high resolution information. The sum of the signals from the two effective regions produces a signal representing a low resolution f degree. The signal of the second channel passes through two different signal conditions, the road and the combined digital decoration. Digital devices and the like have basically the same characteristics. Because different sensing areas are used to generate signals, one digitizing device will provide a high-resolution output, while the other digitizing device will generate a low-resolution output. Furthermore, a microprocessor analyzes the digital data from two channels to decode the scanned barcode data. Either system is used to obtain two channels. The microprocessor can analyze the data from each channel, identify and produce an effective decoding result, and select the synthesized data obtained from this channel as the output data. Channels with resolutions that do not match the barcode density currently read will produce a discernible reading error. Alternatively, the microprocessor produces a single-effective result from the two-channel data, even if neither of the two separate channels is generated independently-effective reading. The microprocessor recognizes the read data from each channel — the part operates at the corresponding resolution within acceptable parameters. The microprocessor discards any data from the two channels that are outside the acceptable limits. The microprocessor combines the data from the acceptable parts of the two channels to form a single form-the final effective reading result. The high-performance barcode bar will have the following characteristics: ** Built-in decoder; ** The most common automatic identification of the fu-marks; ** Large resolution range (from low to high-density barcodes, that is, from a good printing to point paper) The Zhang scale is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 297 mm) 82.3. 40,000 ------------------------ installed --- --- # ------ LINE < Please read the notes on the back side 1 and then write this page).. 2 14590 A6 B6 Printed by the Ministry of Economic Affairs Zhongjia Standard House Λgong Consumer Cooperatives V. Inventions Description (9) Matrix barcode $ 5-20 mil1; ** Easy to read on plastic or laminated sheet. When the transmitter-detector module has a high depth of field and-a variable "point size", the above technical requirements can be met. For example, reading plastic or laminated sheets usually requires * to read The dot matrix barcode also needs a dot size as large as 0.5mm. In addition to the purpose, some of the advantages and novel features of the present invention will be published in the subsequent description, and experts who are familiar with the technology will review the following or by the present invention. Significant changes known in practice. The tools pointed out in the scope of the patent application and the objectives and advantages of the present invention can be achieved and obtained. **** A brief description of the drawing **** Figure 1 is a An isometric illustration of a bar-type brick reader implemented by the present invention during a bar code scan. 囵 2 is two effective sensing points for different working angles of the bar shown in Figure 1. Figures 3Α and 3B illustrate the bar code Scanning of sensing points. FIG. 3A shows two effective sensing points of the present invention when they pass through a relatively high-density overall barcode symbol. FIG. 3B shows two effective sensing points when they pass through a low density point A single bar of matrix symbols Components. Figure 4 is a block circuit diagram of a dual-channel embodiment using digitizing devices with different resolutions. FIG. 4A is a high resolution barcode and signal generated in the circuit of FIG. 4 by scanning a code. FIG. 4B is a dot matrix list machine. The printed noise barcode and the letter generated by scanning this—bar code in the circuit of Figure 4. (Please read the precautions on the back before filling in this F) 丨 Binding · • Line. This paper size is applicable to the Chinese National Standard (CNS ) A4 specifications (210 X 297 mm) 82.3. 40,000 Printed by the Ministry of Economic Affairs Central Standard House Shellfish Consumer Cooperative V. Description of the invention (10) FIG. 5 illustrates a cross-sectional view of the light emission sensing system of the present invention. 6 A cross-sectional diagram illustrating a modified form of the light emission and sensing system of the present invention using a ring lens around the emitter and optical combination 0 FIGS. 7 to 10 illustrate the light emission and sensing for circle 5 or FIG. 6 Various configurations of the transmitter and optical combination of the measurement system. FIG. 11 is a simplified plan view of a photodetector with two effective areas surrounding one another. FIG. 12 is a two-zone photodetector using one transmitter and FIG. 11 Block circuit diagram of another embodiment of the dual-channel system of Figure 1. Figures 13 and 14 are more detailed illustrations of the specific embodiment of the photodetector of Figure 11. Figure I3 does not show a graphic area and access through the surrounding The middle zone of the insulation channel of the effective zone. Figure 14 shows a rectangular zone and a lead line passing from the enclosed effective zone through the use of a lap liner in the middle zone. Figure 15 is a flow chart circled in this way The flow decoder obtains a single legal result from the two data streams of different resolutions. Figure 16 illustrates an enlarged barcode and the signals obtained in the two > channels for the scanning and co-calculation part of the process in Figure 15. ** ** The best mode of implementation of the invention **** Figures 1 and 2 illustrate the scanning of a bar code and how the invention increases the range of a working angle, especially for a stick reader. A bar-type barcode reader 10 shown in FIG. 1 manually scans a barcode 20. As shown in FIG. 1, the working angle Θ is defined as the angle between the main axis of the rod 10 and a line orthogonal to the surface on which the encoded information is located. Rod 10 is shown at position b, at which point the angle Θ is about 4S degrees. The standard of this paper is the aa family standard (CNS) A4 specification (210 X 297 mm) 82.3. 40,000 (please read the precautions on the back side and then fill out this page). Installation · Order · Line · Central Standards of the Ministry of Economic Affairs A6 B6 Printed by Resident Consumer Cooperatives V. Description of the invention (11) However, the stick can be held at a wide angle range, such as the position of 0 degrees or the positions a and C as shown in FIG. 1. The light emitting and detecting elements of the rod 10 are arranged to produce two effective sensing points si and S2 of different diameters. As shown in Fig. 2, the different diameters and shapes β of the two sensing points at different working angles 0 are at the position of 0 degrees, and the sensing points S1 and S2 are basically concentric circles. Since the angle Θ is added through the positions a, b, and df, however, the two points si and S2 trail and expand to form a larger ellipse. If the reader is a stick-type device, the user manually moves the stick through the bar code to scan the two sensing points. This generates (i) a sensed light-encoded information when passing the first effective sensing point to generate a first sensing signal, and (ii) a sensed light-encoded information when passing the second effective sensing point to generate a second Sensing signal. During scanning of a bar code or other optical grouping information, the first and second sensing points S1 and S2 scan the optical coding information. Fig. 3A shows that a code 20 is scanned at a relatively small working angle Θ points S1 and S2. The user keeps the working angle close to or equal to 0 degrees throughout the scan length, and both points S1 and S2 remain substantially circular. If the user changes the working angle, the size and shape of the sensing points S1 and S2 change as illustrated in FIG. 2. The diameter increase of the first and second effective sensing points S1 and S2 is proportional to the increase in the working angle. The invention obtains a table of the optical codes of the sensing signals of # 2 sensing signals of FJl and S2. For different working angles, at least one of the effective sensing points is appropriate in size to produce an effective reading of light-encoded information. For a relatively low-density code, an operating angle of 0 degrees can provide a large circle sensing point S1 of appropriate size as shown in FIG. The smaller dot S2 is actually too small for some noise printing codes such as dot matrix printing codes. At a slightly larger angle, the paper size is applicable to the Chinese National Standard (CNS) A 4 specifications (210 X 2 mm) ----------------------- -Install ------. 玎 ------ Line <Please read the precautions on the back before filling in this page). A6 B6 214590 5. Description of the invention (12) degrees, such as at b, two The reader can provide at least some readable information, which can be combined to provide a single encoded decoding result. When the working angle Θ increases, the points S1 and S2 extend as shown in Figure 2 at C and d. At many angles, although the larger point S1 is quite large, the smaller point S2 will have an appropriate diameter. A relatively high-density barcode 20 is scanned at points S1 and S2 shown in FIG. 3A. Since the working angle is close to or equal to 0 degrees, both points S1 and S2 are substantially round. At some points of high-density barcode scanning, especially in the middle two positions in the figure, the larger sensing point S1 contains two or more elements. The averaging in this area will not provide a correct signal to indicate the edge of this small barcode element. However, the smaller diameter point S2 covers such a small area that even at these locations its culvert only covers a narrow element. FIG. 3B illustrates an element 23 where dots S1 and S2 are scanned through a dot matrix barcode. As shown, element 23 actually shows a gap between individual points. Sensing this small point S2 will detect this point as a dark area and the gap as a bright area. For example, at the position shown in Fig. 3B, the point S2 approximately coincides with one of the gaps. As a result, the response signal at the response point S2 will indicate a bright space at this point instead of a dark bar element. Therefore, the sensing of point S2 will inaccurately read the degree of the element 23; however, the larger the point S1, the larger the decoding result of the encoding. Using point S1 to average the reflected light through a larger area at this point will indicate a dark element. Figure 4 shows the first embodiment of the dual channel system of the present invention. This is the simplest technique to generate two channels with two different resolutions or scan points. In this embodiment, two different resolutions are obtained by using a digitizing device with different resolutions. The reader may be an automatic scanning device or a stick-type device that requires manual scanning. For simplicity, it will be assumed that the circuit in question is a manual scanning stick type reader. The embodiment of FIG. 4 has a single light source, light emitting diode or LED 41 and a single paper A degree is applicable to China National Standard (CNS) A 4 specifications (210 X 297 mm) ----------- ------------- installed ------ ordered ------ line. * _-(Please read the precautions on the back before filling in this page) 薶 济 部 中 典Printed by the Standard Consumer Labor Cooperative 82.3. 40,000 214 Coffee A6 B6 Printed by the Ministry of Economic Affairs Central Standard Resident Consumer Cooperative. V. Description of the invention (13) Photodetector, photodiode " PD " 42. The LED 41 emits light to illuminate the surface area barcode 20 of the light coding information. The PD 42 senses the light reflected from the barcode 20 to generate an amplitude analog signal representing the reflected light. The reader scans the bar code. If the reader is a stick type, the user manually passes the stick through the information to cause the detected amplitude variation of the reflected light to correspond to the bright and dark areas of the information. The analog signal from the PD 42 is amplified, inverted, and conditioned on the two analog signal condition circuits 43 and 44. The signal condition circuits 43 and 44 are basically the same and thus provide two analog output signals. One of the two output signals is transmitted to the first digital makeup house 45, and the other is transmitted to the second digital makeup house 46. The digitizing devices 45 and 46 are used as an edge detector or waveform shaping circuit, similar to a method used in the conventional technology single-channel type reader. The threshold values set in each digitizing device 45 and 46, and the digitizing device determine what part of the analog signal represents the edge. However, the digitizing devices 45 and 46 have different threshold values. The pulse signal output from the two types of digitization devices 45 and 46 is supplied to the input of a decoder 47 of a programmed microprocessor type. The signal condition circuit 43 and the digitizer 45 form a first channel to provide a first data stream to the decoder 47. The signal condition circuit 44 and the digitizing device 46 form a second channel to provide a second data stream to the decoder 47. The threshold setting of the first digitizing device 43 is relatively low at T1 as shown in FIGS. 4A and 4B, so that the digitizing device 43 will have a low resolution. The second digitizing device 46 has a high threshold T2 and is sensitive. Fig. 4 shows a high-resolution bar code and scanning this bar code generates the signal in the circuit of Fig. 4. The analog signal varies with the average of the reflected light, and if there is a condition, there will be a small variation corresponding to the nearest spacer. The low threshold of the first digitizing device 45 will produce some changes, as shown in FIG. 4A *, which is not detected by the digitizing device 45. The second channel with high resolution will detect the components produced by this close spacer bar {please read the precautions on the back first ¾ write this page again, > _install · order. Thread · this paper ;? applicable to China National Standard (CNS) A4 specifications (210 X 297 mm) 82.3. 40,000 Central Standard of the Ministry of Economic Affairs W: Printed by industrial and consumer cooperatives Α6 Β6 V. Description of the invention (14) Small changes in the reflected light produced are sensitive The digitizing device 46 will detect a small collision within the analog signal. The high-resolution second channel will produce a pulse train output from the digitizing device as shown in the figure, closer to the corresponding bar code edge. Fig. 4B shows a dot-matrix low-resolution barcode and the signal generated in the circuit of Fig. 4 by scanning this barcode. This kind of analog signal changes with the average reflected light, and as conditions, there will be small changes corresponding to the points of the matrix. The analog signal will have a large change corresponding to the actual components of Fu Xun. The low threshold in the first digitizing device 45 will produce a small change in the analog signal and is not detected by the pulse signal from the digitizing device 45 as shown in FIG. 4B. The low resolution first channel will generate a pulse train output from the digitizing device 45 close to the corresponding bar code edge. In contrast, the second channel with high resolution will detect small changes in the reflected light caused by this space between the bar elements, because the sensitive digitizer 46 will detect small collisions of the analog signal. The pulse wave signal from the digitizing device 46 as shown in FIG. 4B will not correspond to the actual edge of the strip element. For high-resolution or low-resolution barcodes from Figures 4A and 4B, one of the two channels will produce a pulse signal output or data stream close to the edge of the corresponding scanned barcode. The decoder 47 is a relatively standard unit for two streams of two channels with different resolutions except for having two inputs instead of one input. The collective decoder 47 provides a digital data output such as ASCI format. The J microphone of the caster room. The sound is off the drums U5 and 16. A wide variety of technologies can be used to obtain two data channels. In each embodiment, the system will provide two data streams from two channels with different resolutions to a single decoder 47. The decoder 47 remains the same. Figures 5 to 10 illustrate various embodiments of the optical system of the improved reader, especially when the picking mechanism forms a stick-type decoration. The paper ruler used in this book is applicable to the Chinese National Standard (CNS) Grade A (210 X 297 mm) 82.3. 40,000 ------------------------ ------, 玎 ------ line (please read the precautions on the back before filling this page) · A6 B6 V. Description of the invention (15) (please read the precautions on the back before filling in this Page) or both conventional optical components are used as components of handheld scanning devices or stick optical devices to read optically encoded data, especially barcode data. The transmitter and detector and their combined optical components are axially aligned, so the stick can be particularly small and narrow for easy handling and operation by the user. FIG. 5 shows a cross-sectional view of the first embodiment of the optical module of the present invention. The light emission and sensing system 11 for reading encoded information on light includes a substantially four-axis alignment component, an LED emitter and an optical combination 12, a condenser lens 13 in combination 12, a photodetector 15 and a lens I3 and The hole 14 between the photodetector 15 and the LED chip in the LED emitter and optical assembly 12 is used as the LED 41 of the circuit shown in FIG. The barcode symbol 20 is illuminated by the light from the LED emitter and optical combination 12. The lens 13 collects the backscattered light reflected from the bar code symbol 20 and focuses it on the hole 14. The hole 14 limits the depth of field and the resolution of the system. The optical detection device 15 is placed behind the hole 14. The optical detector and optical combination 15 may be a general detector chip with an effective area in a molded plastic optical device. The detector combination 15 pairs of single detection type barcode rods are used as the optical detector 42 in the circuit shown in FIG. Alternatively, the photodetector 15 may use a detector chip having two effective areas, which will be described later with respect to FIGS. 11 to 14. Fig. 6 illustrates another embodiment of the inventive combination, as shown in Fig. 5 printed by the Central Standard Resident Consumer Cooperative of the Ministry of Hydrocarbon Economy. The light emitter and sensing system 11 illustrated in Fig. 3 provides a more compact construction. In this embodiment, in FIG. 5-the ring lens I3 'is used instead of the condenser lens 13. The LED emitter 12 of Figs. 5 and 6 is a combination of a GaAs screen crystal wafer and some molded optical combinations, as explained below. 7 illustrates a first embodiment of an LED emitter and optical combination 412; its outward appearance is shown at 415 in this figure. 82.3. 40,000 This paper is again applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm). Printed by the Central Standards Department of the Ministry of Economic Affairs of the 8th Industrial Consumer Cooperative. V. Invention description (16) 'Figure 70 ^ D transmitter and The optical assembly 412 includes an optical device 420 made of injection-molded photoplastic and an LED chip 421 embedded in the device 42o on the axis of the device. The optical device is molded with two optical surfaces. The first optical surface is a spherical interface 422 formed in front of the optical device 42. The second optical surface is formed by the curved side wall 423 of the optical device 420. The curvature of the side wall 423 is the same as that used in the light concentrator and causes the optical device 42 to narrow from front to back or taper the front interface surface 422. The front spherical interface 422 focuses the parallel axis light from the LED 421 on point P2. The light 425 from the LED 421 passes through the off-axis area of the optical device 420 and hits the side wall 423, is reflected back to the spherical interface 422 and is focused on the point P1 with the interface 422. The area between points P1 and P2 is the depth of field. The curve of the side wall 423 is designed according to the depth of field required for the use of a particular barcode reading. The external shape structure 415 of the optical assembly 412 of FIG. 7 includes a spherical front optical interface and an internal reflection curve side wall. A metal coating film at least part of the curvilinear side wall of the outer 415, as shown by the dotted line in the figure. FIG. 8 illustrates the first embodiment of the LED emitter and optical combination. The LED emitter and optical combination 512 of FIG. 8 is substantially the same as the combination 412 of FIG. However, the combination 512 includes an LED wafer 521 turned 180 degrees to face the back of the combination 512. The focal point of the internal reflection parabolic mirror 526 of the LED chip 521 is formed on the back surface of the optical package 520. A metal coating film may cover the outer surface of the parabolic mirror 526, as shown by the dotted line. The parabolic mirror 526 converts the light from the LED 521 to direct parallel light forward. The spherical interface 522 of the parallel light focuses the parallel axis part on the point P2. The off-axis portion of the parallel light is first reflected by the curved side wall 523, and then the spherical interface 522 causes it to focus on the point P1. The area between points P1 and P2 is the focal depth of field. Figure 515 on the left-hand side of FIG. 8 shows that the paper size is applicable to the Chinese Unitary Standard (CNS) A4 specification (210 X 297 mm) 82.3. 40,000 • 丨 -Γ ------------ -------- installed ------ ordered ------ line (please read the precautions on the back before filling in this page) · A6 B6 5. Description of the invention (17) < please Read the precautions on the back before filling this page) for the outward appearance of the optical combination. FIG. 9 illustrates a third embodiment of the LED emitter and optical combination. The structure of the combination 612 is the same as the structure shown in FIG. 5; however, the side wall 623 shown in Example 9 is not curved. The side wall 623 is a cylinder to form a straight line parallel to the axis. Moreover, Fig. 9 shows that the two LED chips "I and Ml 'illuminate the target with higher light emission. The LED wafer 621 faces the back of the optical device 62 and is positioned on the back internal reflective parabolic mirror 626 forming the optical device. Furthermore, the metal coating can cover the outer surface of the parabolic mirror, as indicated by the dotted line. Parabolic mirror 626 converts the light from led 621 into parallel light. The LED M1 ′ emits light forward toward the curved interface 622 on the front of the light device 62. The curved interface 622 focuses the divergent parallel-axis light from the front-facing LED 621 'on? 2. The curved interface 622 also focuses the parallel light from the parabolic mirror 626 to the rear LED 621 at point P1. Points P1 and P2 are at different distances in front of the self-molding optical device 62 and the space between P1 and P2 is the depth of field. The forward appearance of the above optical combination is shown on the left side of Fig. 9 at 615 °. The circle is often the same as in Fig. 9. The difference between the two configurations is that the front spherical surface 621 of the LED emitter and optical combination 612 of FIG. 2 is changed to an axial cone 722 of the LED emitter and optical combination 712 of FIG. Figure 10 shows a single LED chip 721 facing the back of the optical device 72. The wafer 721 is positioned at the focal point of the parabolic mirror 726 formed on the back of the optical device. Furthermore, the metal coating covers the outer surface of the parabolic mirror, as indicated by the dotted line. The axicon surface 722 focuses the light passing through the middle part of the optical device at the first focal point P1, and the axicon focuses the light passing through the off-axis part of the optical device at the second farther focus P2. Although shown with a single rear-facing LED chip, the light emitter and optical combination 712 may include a front-facing second chip that is the same as the chip 621 'shown in FIG. 9 82.3. 40,000 This paper silver is again applicable to the national standard of t ) A4 specifications (210 X 297 mm) A6 B6 The Central Standards Ministry of Economic Affairs Consumer Cooperative Prints 5. The description of invention (18). The outward appearance of the above optical combination is shown at 715 on the left side of FIG. At this point, the detailed embodiment has included a standard photodetection chip, and each -____- light emission and sensing system will be used for a single emitter and single detection type circuit as shown in FIG. 4. Another method for generating two-channel information is to replace the single detector chip of the photodetector and optical combination of FIGS. 5 and 6 with a chip having two separate effective sensing areas, as follows. Fig. 11 is a simplified plan view of a photodetector having two effective areas. One surrounds the other, as shown by a black shadow center circle effective area # 1 and shown-an effective area # 2 surrounded by a cross-hatched area. The construction of the photodetector of this embodiment will be discussed in more detail with respect to Figs. 13 and 14 below. The characteristic of this optical detector is to form a multi-channel detection system. The multi-channel detection system includes a first effective light-sensing area on the substrate and a second effective light-sensing area formed on the same substrate. The second light sensing area is located around the first light sensing area. Each effective light sensing area and the underlying substrate together form a photodetector. This photodetector is used in the circuit of the embodiment of the present invention as shown in FIG. In the circuit of FIG. 12, the function of the signal condition circuit and the digitizing device is the same as that of the embodiment of FIG. The embodiments of FIGS. 11 and I2 generate two different optical channels based on the different light sensing properties of the two effective regions D1 and O2, instead of using digital resolution with different resolutions, as shown in the FIG. 4 embodiment. The high-resolution channel shown in Fig. I2 includes the second digitizing device as the upper channel and the first channel as the lower channel. In this embodiment, there is a light emitting element 41 and two photodetectors. A light emitting element 41 will include any of the emission and optical combinations 3, 2, 412, 512, 612, or 712 of FIG. 5 to 10. The 1 ° photodetector includes the photodetector and optical combination 1S embedded in FIGS. 5 and 6. One is used as a semiconductor detection type chip <Please read the precautions on the back before writing this page). Binding. Order-. Line · This paper A degree is applicable to the National S Home Standards (CNS) A 4 Specifications (210 X 297 mm) 82.3. 40,000 A6 B6 Printed by the Ministry of Economic Affairs, Central Standards Bureau, R and Consumer Cooperative Co., Ltd. 5. Description of the invention (19) The effective sensing area of this unit shown in FIG. 11 on a single chip D1 in Fig. 12 indicates a sensor or photodetector including the effective area # 1, the middle effective area. D2 means including the effective area # 2, the sensor or photodetector surrounding the effective area. LED 41 emits light illumination light coding information. The photodetectors D1 and D2 receive the light reflected from the surface of the barcode 20. The detector D1 will produce an analog signal that effectively represents the average of the reflected light received through the small effective area D1. This signal is the same even if a light diode with a small effective area is used, and the effective area establishes the point size and / or resolution of a high-resolution channel. The photodetector 12 will produce an average analog signal that effectively represents the reflected light received through this large enclosing effective area D1. The analog signals from D1 and D2 are added by the adding circuit 132. The analog signals from D1 and D2 are approximately the same as the signal generated by the larger photodiode, that is, the average of the reflected light received through the total effective area of area # 1 plus area # 2. The signal condition circuit 133 receives the combined signal from the adder 132 and makes the conditions as described above. The signal from the conditional circuit 133 is digitized by the digitizing device I34 to form a low-resolution data stream. Therefore, the detectors D1 and D2, the adder 132, the signal condition circuit 133, and the first digitizing device 134 form the low-resolution first channel of this embodiment. The signal condition circuit 137 receives the signal to D1 and makes the condition as discussed above. The signal from the conditional circuit 137 is digitized by the digitizing device 138 to form a high-resolution data stream. Thus, the detector D1, the signal condition circuit 137, and the second digitizing device form the high-resolution second channel of this embodiment. In the same manner as the previously discussed embodiment, the detector receives and processes pulse signals from the digitizing devices 134 and 138. Add additional enclosing areas and corresponding adders, signal condition circuits, and digitizing devices to increase the different solutions obtained by using the photodetector of Figure 11 (please read the precautions on the back before filling this page)
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T % 本紙張尺度適用中國國家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 A6 B6 214530 五、發明説明（2〇) (請先閲讀背面之注意事項再塡寫本頁) 像度頻道的數目是一簡單的事情。 圖11的光檢波裝置以相關標準光二極體製造技術來製 成。特別地，此製造過程類似用於製造側對側光二極體及 四線組光二極體型裝置。在有效裝置之間的無效區或死區 典型地範圍在0.001至〇.〇〇5。圖11的光檢波器的可能的布 置在圖13及14。 圖I3的實施例包括在其上形成有效區的一基體141。第 —有效區I42是圓的。第1有效區142以適當地摻質於圓形區 來形成。死區I43包圍有效區142。第二有效區144大致形成 圓環在第一有效區I42及死區143周圍。第二有效區144以適 當地摻雜質於圓環來形成。死區I43隔開且電氣隔離有效區 I42及I44。共用引線I48以搭接襯墊147附著在基體141。和 在下面的基體一起，每一有效區142及144形成一光靈敏二 極體。 經濟部中央標準局KK工消費合作社印製 圖I3圖解説明較佳形式的連接到第1有效區142。在此 實施例，第二有效區I·44没有在第一有效區142周圍形成一 完整的環。一小的無效區I9形成經第二有效區144形成的琛 的絶緣通道。一金饜軌跡145形成在小的無效區149上連接 第一有效區到一搭接襯墊。因而載流連接可經由搭接襯墊 及金屬軌跡I45連接到第一有效區。一金屬軌跡同樣地連接 第二有效區I44到搭接襯墊◊只有一 2密爾寛路徑穿過第二 有效區144没有形成通道149及軌跡145。 圖I4圖解説明本發明的第二實施例的光檢波器具有 長方形有效區以及直接在每一有效區上形成搭接襯墊。此 買施例包括一基體1S1在其上形成有效區。第一有效區152 本紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公釐） 82.3. 40,000 214500 五、發明説明（21) 是長方形，而且第一有效區I52以適當摻雜質於長方形區來 形成。一長方形死區153在有效區152周圍形成。第二長方 形有效區I54完全包圍第一有效區152及死區153。以適當地 摻雜質到外部長方形環來形成第二有效區154。死區153分 開且電氣隔離有效區1Ξ2及I54。一共用引線158以搭接襯墊 I57附在基體1S1和在下面的基體一起在每一有效區152及154 形成光靈敏二極體。 圖3·4圖解説明第二形式連接到有效區。在此實施例， 一搭接襯墊直接在每一有效區上形成。經在此區的一搭接 襯垫金屬引線I55提供一載流連接到第1有效區152，而第二 金屬引線I56經搭接襯墊提供一類似連接到第二有效區154 上。在每一有效區上犧牲部份區域形成搭接襯墊。而且引 線I55將投射一影經過第二有效區154，如圖15所示。 討論圖11到I4已改良的光檢波器裝置集中於詳細實施 例上，其中有效區形成在一基體上，但可使用其他有效區 型光檢波裝置。例如考慮光檢波器可包含在二次元電荷耦 合裝罱（CCD)排内的區域。例如，中間區將包含許多像素感 測裝置的排列的一2X 2平方次排的形式。包圍有效區將包 含許多像素感測裝罱的區域在中間有效區周圍，例如，在 四方形中間有效區周圍形成2像素寛環。自中間區的信號以 移出2X 2平方次排列的每一像素的電荷値及經中間區的像 素數目値的平均來形成。自包圍區來的信猇可以相同方式 形成，或總合信號可直接地以經兩區一起的平均値來形成。 /圖15是一流程圖圖解解碼器47自兩不同解像度的資料 流得到單一合編碼合成的過程。在第一步ST1自兩頻道的資 本紙张人度適用中國國家標準（CNS)甲4规格（210 X 297公釐） (請先閲讀背面之注意事項再填寫本頁) .丨裝· 訂_ 經濟部中央標準扃®:工消費合作社印製 82.3. 40,000 經濟部中央標準局S工消费合作社印製 214590 Α6 Β6 五、發明説明（22) 料同時地讀進解碼器47。來自兩頻道的資料將稱爲資料A及 資料B。此等資料輸入的任一任意地對應低解像度資料流而 另一對應高解像度資料流。在ST2步驟，解碼器要使資料A 解碼。在ST3步驟，解碼器決定是否要使資料A解碼成功。 如成功，則流程進行到ST8步驟而提供一"嗶"聲指示掃描成 功，跟著步驟ST9提供一解碼資料的輸出，而然後程式在步 驟ST10結束。然而，如ST3步驟發現要資料A解碼不成功， 解碼器進行到ST4步驟要解碼資料B。在ST5步驟解碼器決定 是否要資料B解碼成功，如成功，流程再次進行到ST8步驟 指示成功的掃描，跟著ST9步驟提供已解碼資料的輸出，然 後程式在ST10步驟結束。然而如ST5步驟發現要資料B解碼 失敗，解碼器在ST6步驟進行執行一掃描併合演算。 圖I6助於圖解掃。如所示，頻道#1自包括 一錯誤的數位化裝置產生一脈波信號。然而信號之數段對 特別條碼標準所指示在可接受限度内的資料。同樣地，頻 道#2自其包括一錯誤的數位化裝罱及表示在可接受的限度 内的資料的數段信號所產生的一脈波信猇。包括在頻道#1 資料的錯誤在一不同於頻道#2資料鍺誤的位置。微處理機 解碼器辨識從每一頻道的資料的那部份是在可接受參數内 。微處理機解碼器拋棄自兩頻道的鍺誤資料，且結合來自 兩頻道可接受的資料部份形成如圖I6所示條正的信號的單 一最後有效讀取結果。因而，即使兩頻道產生不能解碼成 功的資料，微處理機能併合兩頻道的資料產生一單一有效 的結果。 掃描併合演算晕相同乾赞衰弃美國事利申請名稱爲"自 本紙張尺度適用中固國家標準（CNS)甲4规格（210 X 297公釐） 82.3. 40,000 -------------------------裝------，玎------線 <請先閱讀背面之注意事項再堉寫本頁) . A6 B6 214590 五、發明説明（23) 多掃描條碼解碼的方法與裝置"之内，其在此併合參考。上 述雎用説明掃描信號的分析決定合編碼資料以便解碼及併 合來自順序掃描的資料。在此情形的掃描併合演算相同但^ 惠里於風_處埂接收自兩不同解像度頻道的掃描資料。 -一、一____·、........···—-—· ' --------------------------------- 回到圖16,在ST6步驟執行掃描併合演算之後，解碼器 決定是否掃描併合產生一成功的解碼。如成功，流程再次 進行到ST8步驟指示成功的掃描，跟著ST9步驟提供已解碼 資料的輸出，而然後程式在ST10步驟結束。只有如掃描併 合失敗提供一合法成功的解碼結果在步驟ST10的程式將結 束而没有有效解碼資料的崎出。 上面討論的軟體是簡化P且限於集中在自兩頻道的 資料處理來提供已解碼的結果。解碼器將也包括適當的軟 體允許自動鑑別不同編碼符號代表且自包括其他目標反射 的光的脈波之類比掃描信號之中找尋正確編碼資料。 微處理機解碼器也可包括程式相關於集體終端運作的 功能。此終端機將包括大致記憶容量、鍵盤、顳示器及一 些形式爲通信目的的資料介面。在此一集體終端機形狀構 造微處理機將響應鍵盤輸入的資料及指令，提供掃描及鍵 入的資料的顳示及資料控制傳輸到外部資料處理系統。 本發明已原理性地説明成爲二頻道系統。在本發明範 圍内而擴展各種實施例包含額外之資料頻道以提供進一步 的不同解像度。替代地，雖較佳地是以二頻道系統，但此 發明的光學組合提供尤其地小的有效率的光學組合，甚至 對於單一頻道系統。 本紙張尺度適用中國國家標準（CNS)甲4規格（210 X 297公货） K------------------------裝------·订 線 (請先閲讀背面之注意ί項再塡寫本頁) . 經濟部中央標準局貝工消费合作社印製T% The size of this paper is in accordance with Chinese National Standard (CNS) A4 specifications (210 X 297 mm) 82.3. 40,000 A6 B6 214530 5. Description of invention (2〇) (Please read the precautions on the back before writing this page) The number of likeness channels is a simple matter. The photodetector device of FIG. 11 is manufactured using the related standard photodiode manufacturing technology. In particular, this manufacturing process is similar to that used for manufacturing side-to-side photodiodes and four-wire photodiode type devices. The dead zone or dead zone between active devices typically ranges from 0.001 to 0.005. The possible arrangements of the photodetector of Fig. 11 are shown in Figs. 13 and 14. The embodiment of FIG. 13 includes a substrate 141 on which an effective area is formed. The first-effective area I42 is round. The first effective region 142 is formed by appropriately doping the circular region. The dead zone I43 surrounds the effective zone 142. The second effective area 144 substantially forms a circle around the first effective area I42 and the dead area 143. The second effective region 144 is formed by appropriately doping the ring. The dead zone I43 is separated and electrically isolated from the effective zones I42 and I44. The common lead I48 is attached to the base 141 with a bonding pad 147. Together with the underlying substrate, each active area 142 and 144 forms a light sensitive diode. Printed by KK Industrial and Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs. Figure I3 illustrates the preferred form of connection to the first effective area 142. In this embodiment, the second effective area I · 44 does not form a complete ring around the first effective area 142. A small invalid region I9 forms an insulating channel formed by the second valid region 144. A gold track 145 is formed on the small inactive area 149 to connect the first active area to an overlap pad. Therefore, the current-carrying connection can be connected to the first active area via the overlapping pad and the metal track I45. A metal track similarly connects the second effective area I44 to the overlap pad ◊ There is only a 2 mil path through the second effective area 144 without forming the channel 149 and the track 145. Fig. I4 illustrates a photodetector of a second embodiment of the present invention having a rectangular effective area and forming a lap pad directly on each effective area. This embodiment includes a substrate 1S1 on which an effective area is formed. The first effective area 152 This paper scale is applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) 82.3. 40,000 214500 V. Description of the invention (21) is rectangular, and the first effective area I52 is properly doped It is formed in a rectangular area. A rectangular dead zone 153 is formed around the effective zone 152. The second rectangular effective area I54 completely surrounds the first effective area 152 and the dead area 153. The second effective region 154 is formed by appropriately doping the outer rectangular ring. The dead zone 153 is separated and the effective zones 1Ξ2 and I54 are electrically isolated. A common lead 158 is attached to the substrate 1S1 with an overlap pad I57 and the substrate below forms a light-sensitive diode in each effective area 152 and 154. Figure 3.4 illustrates the connection of the second form to the active area. In this embodiment, a lap pad is formed directly on each active area. The metal lead I55 provides a current carrying connection to the first active area 152 via a bonding pad in this area, and the second metal lead I56 provides a similar connection to the second active area 154 via the bonding pad. A sacrifice pad is formed on each effective area to form a lap pad. And the lead line I55 will project a shadow through the second effective area 154, as shown in FIG. Discussion The improved photodetector devices of Figs. 11 to I4 focus on detailed embodiments in which the effective area is formed on a substrate, but other effective area type photodetection devices may be used. Consider, for example, that the photodetector may be contained in the area within the row of secondary charge coupled devices (CCD). For example, the middle area will contain a 2X2 square row arrangement of many pixel sensing devices. Surrounding the effective area will include an area containing many pixel sensing devices around the middle effective area, for example, forming a 2-pixel ring around the square middle effective area. The signal from the middle area is formed by averaging the charge value of each pixel shifted out of the 2 × 2 square arrangement and the number of pixels passing through the middle area. The information from the surrounding area can be formed in the same way, or the total signal can be directly formed by the average value of the two areas together. / Fig. 15 is a flowchart illustrating the process of the decoder 47 obtaining a single coded combination from two data streams of different resolutions. In the first step, ST1's capital paper ratings from the two channels are applicable to the Chinese National Standard (CNS) A4 specifications (210 X 297 mm) (please read the precautions on the back before filling out this page). 丨 装 · Order_ Ministry of Economic Affairs Central Standard®: Printed by the Industrial and Consumer Cooperative 82.3. 40,000 Printed by the Ministry of Economic Affairs Central Standards Bureau S Industrial and Consumer Cooperative 214590 Α6 Β6 V. Description of Invention (22) The material is read into the decoder 47 at the same time. The materials from the two channels will be called materials A and B. Any one of these data inputs arbitrarily corresponds to a low-resolution data stream and the other corresponds to a high-resolution data stream. In step ST2, the decoder decodes the material A. In step ST3, the decoder decides whether to decode material A successfully. If successful, the flow proceeds to step ST8 to provide a " beep " sound indicating successful scanning, followed by step ST9 to provide an output of decoded data, and then the program ends at step ST10. However, if the ST3 step finds that the decoding of the material A is unsuccessful, the decoder proceeds to the ST4 step to decode the material B. At step ST5, the decoder decides whether to decode data B successfully. If it succeeds, the process again proceeds to step ST8 to indicate a successful scan, followed by step ST9 to provide the output of the decoded data, and then the program ends at step ST10. However, if the ST5 step finds that the decoding of the data B fails, the decoder performs a scan and performs the calculation in the ST6 step. Figure I6 helps to illustrate the scan. As shown, channel # 1 generates a pulse signal from a digitizing device that includes an error. However, several sections of the signal are within acceptable limits as indicated by the special barcode standard. Similarly, channel # 2 generates a pulse signal from a digital signal that includes an erroneous digital representation and data representing data within acceptable limits. The error included in the channel # 1 data is at a different location than the channel # 2 data error. The microprocessor recognizes that the part of the data from each channel is within acceptable parameters. The microprocessor decoder discards the germanium erroneous data from the two channels, and combines the acceptable data portions from the two channels to form a single last valid reading result of a positive signal as shown in Figure I6. Thus, even if the two channels produce data that cannot be decoded successfully, the microprocessor can combine the two channels of data to produce a single effective result. Scanning and co-calculating the same results, praising the decline of American affairs, the application name is " Since the paper standard is applicable to the China Solid National Standard (CNS) A 4 specifications (210 X 297 mm) 82.3. 40,000 -------- ----------------- installed --------, 玎 ------ line < please read the notes on the back before writing this page). A6 B6 214590 V. Description of the invention (23) The method and device for decoding multi-scan barcodes ", which is hereby incorporated by reference. The above description illustrates the analysis of the scan signal to determine the combined coded data for decoding and combining the data from the sequential scan. In this case, the scan and the combined calculation are the same, but ^ Hirili Yufeng_Shuzhen received scan data from two channels with different resolutions. -One, one ____ ·, .........................--- '' -------------------------- ------- Returning to Figure 16, after performing the scan and merge algorithm in step ST6, the decoder decides whether to scan and merge to produce a successful decoding. If it succeeds, the process again proceeds to step ST8 to indicate a successful scan, followed by step ST9 to provide the output of the decoded data, and then the program ends at step ST10. Only if the scan merge fails to provide a legally successful decoding result, the program in step ST10 will end without valid decoding data. The software discussed above is to simplify P and is limited to focusing on data processing from two channels to provide decoded results. The decoder will also include appropriate software to allow automatic identification of the different encoded symbols represented and to find the correct encoded data from the analogue scan signals including pulse waves of light reflected from other targets. The microprocessor decoder may also include functions related to the operation of the collective terminal. The terminal will include approximate memory capacity, keyboard, temporal display, and some form of data interface for communication purposes. Here, a collective terminal shape configuration microprocessor will respond to the data and commands input by the keyboard, provide the temporal display of the scanned and keyed data, and control the data transmission to the external data processing system. The present invention has been described in principle as a two-channel system. The various embodiments expanded within the scope of the present invention include additional data channels to provide further different resolutions. Alternatively, although preferably a two-channel system, the optical combination of this invention provides a particularly small and efficient optical combination, even for a single-channel system. This paper scale is applicable to China National Standard (CNS) A4 specifications (210 X 297 public goods) K ------------------------ installed ---- -· Line booking (please read the notes on the back first and then write this page). Printed by Beigong Consumer Cooperative, Central Bureau of Standards, Ministry of Economic Affairs