A7 B7 五、發明説明（） 本發明係提供一種調整掃瞄器掃瞄速度的方法。 φ # 在今日的辦公室裡，許多文件資料常是用掃瞄器來 -j疼μ g輸入電腦。—個常見的平台式掃瞄器通常包含有一個用來 _ 將光學訊號轉換成類比訊號的掃.瞄.模組安裝於一個滾軸之· 上，一個可來回帶動該掃瞄模組的步進馬達，一個類比/ |孑數位轉換器甩來將該類比訊號轉換成數位化的影像訊號’ 不V、/ 一 ρ：^ —個儲存影像訊號的記憶體，和一個控制單元用來控制該 掃瞄器的所有內部操作以及和電腦之間的通訊傳輸° 1-¾ I之 當歩進馬達每前進一步時，掃瞄模組便會把一條細 線狀的文件影像轉換成影像訊號儲存於記憶體內’然後控 制單元便把儲存在記憶體的影像訊號傳給電腦做更進一步 的處理。在掃瞄一份文件時，每一單位長度內掃瞄線數的 多寡是由該掃瞄器的解析度來決定。 經濟部中央標準局員工消費合作杜印製 (請先鬩讀背面之注意事項再填寫本頁) 一般來說，電腦和掃猫器之間的資料傳輸速率是由 .所使用的傳_協定（transmission protocol)、掃瞄器的最高 掃瞄速度、以及電腦的接收和處理速度來決定。如果資料 傳輸速度比掃瞄器的掃猫速度快，掃瞄器便可以用最高速 度來迅速地完成掃瞄工作。但如果資料傳輸速度小於掃瞄 速度，則無法即時傳輸的影像訊號便會累積在記億體中。 當累積下I的影像訊號超過記憶體的容量時，步進馬達就 必需停下來以防止影像訊號會有所遺漏。當記憶體內的部 份影像訊號被傳送至電腦後，控制單元才會重新起動掃瞄 模組從它先前停下來的地方繼續進行掃瞄工作。 本紙張尺i逋用中國國家標準（CNS ) A4規格（210X297公釐） A7 B7 五、發明説明（） 本發明係提供一種調整掃瞄器掃瞄速度的方法。 φ # 在今日的辦公室裡，許多文件資料常是用掃瞄器來 -j疼μ g輸入電腦。—個常見的平台式掃瞄器通常包含有一個用來 _ 將光學訊號轉換成類比訊號的掃.瞄.模組安裝於一個滾軸之· 上，一個可來回帶動該掃瞄模組的步進馬達，一個類比/ |孑數位轉換器甩來將該類比訊號轉換成數位化的影像訊號’ 不V、/ 一 ρ：^ —個儲存影像訊號的記憶體，和一個控制單元用來控制該 掃瞄器的所有內部操作以及和電腦之間的通訊傳輸° 1-¾ I之 當歩進馬達每前進一步時，掃瞄模組便會把一條細 線狀的文件影像轉換成影像訊號儲存於記憶體內’然後控 制單元便把儲存在記憶體的影像訊號傳給電腦做更進一步 的處理。在掃瞄一份文件時，每一單位長度內掃瞄線數的 多寡是由該掃瞄器的解析度來決定。 經濟部中央標準局員工消費合作杜印製 (請先鬩讀背面之注意事項再填寫本頁) 一般來說，電腦和掃猫器之間的資料傳輸速率是由 .所使用的傳_協定（transmission protocol)、掃瞄器的最高 掃瞄速度、以及電腦的接收和處理速度來決定。如果資料 傳輸速度比掃瞄器的掃猫速度快，掃瞄器便可以用最高速 度來迅速地完成掃瞄工作。但如果資料傳輸速度小於掃瞄 速度，則無法即時傳輸的影像訊號便會累積在記億體中。 當累積下I的影像訊號超過記憶體的容量時，步進馬達就 必需停下來以防止影像訊號會有所遺漏。當記憶體內的部 份影像訊號被傳送至電腦後，控制單元才會重新起動掃瞄 模組從它先前停下來的地方繼續進行掃瞄工作。 本紙張尺i逋用中國國家標準（CNS ) A4規格（210X297公釐） 經濟部中央標準局員工消費合作社印製 A7 B7_ . 五、發明説明（) 步進馬達在剛開始起動的前面幾步通常會發生一些 不穩定的現象，這種現象有可能會影饗掃瞄模組在重新開 始掃瞄時所產生的訊號品質。爲了解決這個問題’目前已 有:兩種方法被提出來。第一種方法是讓歩進馬達倒轉使掃 瞄模組往後倒退幾步，然後再重新向前移動掃瞄模組以避 開不穩定的前面幾步。在向前移動期間掃瞄模組所產生的 訊號並不會被儲存，當掃瞄模組回到前次最後停止的位置 時，影像訊號才會開始被存入記憶體，接著掃瞄模組會繼 續向前移動以完成掃瞄工作。這種方法雖然解決了掃瞄模 組在啓動時所產生的穩定性問題，但它會使掃瞄模組因不 斷地來回移動而降低了掃瞄器的掃瞄速度。 .第二種方法是增加記憶體容量讓更多的影像訊號能 被儲存起來，掃瞄模組因此就能夠繼續不斷地掃瞄並避免 被中斷。直接加大記憶體容量可以很直接減輕影像訊號累, 積的問題，.但它也同時會增加了掃瞄器成本以及電路的複 雜性。由於DRAM(動態隨意存取記憶體）的價格迅速下降， 加大記憶體常會以其作爲優先考量。.但是爲了配合DRAM 的使用，掃瞄器內就必需加上記憶體刷新（refreshing)電路 以維持其內的儲存資料，這使得掃瞄器的記憶體電路更加 複雜。一此外，_增加記億體並不能眞正的解決影像訊號累積 的問題。以彩色掃瞄器爲例，一般的彩色掃瞄器通常能提 供高解析度的彩色影像掃瞄，而這種掃瞄會產生非常高的 資料流量以及大量的影像訊號。如果只是想利用增加記憶 本紙張尺度適用中國國家標準（CNS ) A4规格（210X2.97公釐） (.請先聞讀背面之注意事項再填寫本頁)A7 B7 V. Description of the invention () The present invention provides a method for adjusting the scanning speed of a scanner. φ # In today's office, many documents are often scanned with a scanner to enter the computer. A common platform scanner usually includes a scanner for converting optical signals into analog signals. The module is mounted on a roller, a step that can drive the scanner module back and forth. Into the motor, an analog / | 孑 digital converter is used to convert the analog signal into a digitized image signal. 'No V, / a ρ: ^ — a memory for storing image signals, and a control unit for controlling the All internal operations of the scanner and communication transmission with the computer ° 1-¾ I When the motor advances each step, the scanning module will convert a thin line document image into an image signal and store it in memory In-vivo 'then the control unit sends the image signal stored in the memory to the computer for further processing. When scanning a document, the number of scanning lines per unit length is determined by the resolution of the scanner. Printed by the Consumer Standards Department of the Central Bureau of Standards of the People's Republic of China (Please read the notes on the back before filling out this page) In general, the data transfer rate between the computer and the cat scanner is determined by the transmission protocol used. transmission protocol), the maximum scanning speed of the scanner, and the receiving and processing speed of the computer. If the data transmission speed is faster than the scanner's cat scanning speed, the scanner can use the highest speed to complete the scanning task quickly. However, if the data transmission speed is less than the scanning speed, the image signals that cannot be transmitted in real time will accumulate in the memory. When the accumulated image signal exceeds the memory capacity, the stepper motor must be stopped to prevent the image signal from being missed. The control unit restarts the scanning module only after some image signals in the memory are transmitted to the computer, and resumes scanning from where it left off. The paper ruler uses the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 B7 5. Description of the invention () The invention provides a method for adjusting the scanning speed of the scanner. φ # In today's office, many documents are often scanned with a scanner to enter the computer. A common platform scanner usually includes a scanner for converting optical signals into analog signals. The module is mounted on a roller, a step that can drive the scanner module back and forth. Into the motor, an analog / | 孑 digital converter is used to convert the analog signal into a digitized image signal. 'No V, / a ρ: ^ — a memory for storing image signals, and a control unit for controlling the All internal operations of the scanner and communication transmission with the computer ° 1-¾ I When the motor advances each step, the scanning module will convert a thin line document image into an image signal and store it in memory In-vivo 'then the control unit sends the image signal stored in the memory to the computer for further processing. When scanning a document, the number of scanning lines per unit length is determined by the resolution of the scanner. Printed by the Consumer Standards Department of the Central Bureau of Standards of the People's Republic of China (Please read the notes on the back before filling out this page) In general, the data transfer rate between the computer and the cat scanner is determined by the transmission protocol used. transmission protocol), the maximum scanning speed of the scanner, and the receiving and processing speed of the computer. If the data transmission speed is faster than the scanner's cat scanning speed, the scanner can use the highest speed to complete the scanning task quickly. However, if the data transmission speed is less than the scanning speed, the image signals that cannot be transmitted in real time will accumulate in the memory. When the accumulated image signal exceeds the memory capacity, the stepper motor must be stopped to prevent the image signal from being missed. The control unit restarts the scanning module only after some image signals in the memory are transmitted to the computer, and resumes scanning from where it left off. This paper ruler uses the Chinese National Standard (CNS) A4 size (210X297 mm) printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs. A7 B7_. 5. Description of the invention There will be some unstable phenomena, which may affect the signal quality generated by the scanning module when scanning is restarted. To solve this problem ', two methods have been proposed. The first method is to reverse the advance motor to make the scan module back a few steps, and then move the scan module forward again to avoid the unstable previous steps. The signal generated by the scanning module during the forward movement will not be stored. When the scanning module returns to the previous last stop position, the image signal will start to be stored in the memory, and then the scanning module Will continue to move forward to complete the scan. Although this method solves the stability problem that occurs when the scanning module is started, it will cause the scanning module to move back and forth continuously and reduce the scanning speed of the scanner. The second method is to increase the memory capacity so that more image signals can be stored, so the scanning module can continue to scan and avoid being interrupted. Directly increasing the memory capacity can directly reduce the problem of image signal accumulation and accumulation. However, it also increases the cost of the scanner and the complexity of the circuit. As the price of DRAM (Dynamic Random Access Memory) is falling rapidly, larger memory is often considered as a priority. However, in order to cooperate with the use of DRAM, it is necessary to add a memory refreshing circuit in the scanner to maintain the stored data therein, which makes the memory circuit of the scanner more complicated. In addition, increasing the number of recordings does not correct the problem of image signal accumulation. Taking a color scanner as an example, a general color scanner can usually provide high-resolution color image scanning, and this scanning will generate very high data traffic and a large number of image signals. If you just want to use to increase memory, the paper size is applicable to Chinese National Standard (CNS) A4 (210X2.97 mm) (.Please read the precautions on the back before filling this page)
經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（) . · . ' . 體來解決該問題，記憶體的容量就必需設的非常大，然而 大量的記憶體所能產生的效益¥否能和它所增加的價格成 正例是十分令人感到懷疑的、j 因此，本發明之主要目的在於提供一種調整掃瞄器 掃瞄速度的方法用來減少前述的掃瞄器資料傳輸速度小於 掃瞄速度的情形以提高掃瞄器掃瞄文件的效率。 圖式之簡單說明 圖1爲一連接於一電腦之光學掃瞄器的功能方塊圖。 圖2爲本發明所提供之調整掃瞄器掃瞄速度的程序。 圖1爲一連接於電腦12的光學掃瞄器1〇的功能方塊 圖。掃瞄器10,包含有一個掃#3組14，一個步進馬達18 用來精確地帶動掃瞄模姐14 (L 一個控制單元20用來控制 掃瞄器10的所有lV部操作及與電腦12的通訊，一個記憶 體22與控制單元18相連接，用來儲存從掃瞄模組I4所產 生的影像訊號，以及一個計時器24。在掃瞄模組14之內 包含有一用來掃瞄單行影像的載子偶合裝置l6(Charge Coupled Device)。 -圖2爲本發明所提供之調整掃猫器10掃瞄速度的程 序3〇。在掃瞄一份文件之前，掃瞄器10會利用程序30來 調整它询掃瞄速度。程序3 0包含以下歩驟： 4 本紙張尺度適用中國國家標準（CNS ) A4規格（ 210X297公釐） J--------~| .(#先鬩讀背面之注意事項再填寫本頁) 訂 iw 經濟部中央標準局負工消費合作社印製 A7 ____ B7 五、發明説明（） 步驟3 1 電腦1 2將掃瞄參數如解析度，彩色或黑白模 式等等傳送給掃瞄器10; 步驟32 . 以收到的掃猫.參數重新設定掃瞄器1〇 ; 步驟33 開啓計時器24並從掃瞄器1〇傳輸一個測試 資料封包給電腦12 ;資料封包的長短是由電 腦12所傳來的掃瞄參數決定； .步驟34 電腦12接收和處理資料封包；電腦12接收 和處理該測試資料封包所甩的方法和接收及 處理一正常資料封包所用的方法相同； 步驟35 當電腦12接收和處理完畢該資料封包後，通 知掃瞄器10 ; _ 步驟36 停止計時器24並計算傳送測試資料封包所 用 的傳輸時間； 步驟37 依據測試資料封包的大小和所用的傳輸時間 來計算掃瞄器10與電腦12之間的資料傳輸 速率； 步驟38 依據資料傳輸速率來調整掃瞄器1〇的掃瞄 速 ...... ............................. fjJeS· . . .· - .................. ..... - , · 度，. 步驟39 用新的掃瞄速度開始掃瞄文件。 在步驟3 3和3 4之中，測試資料封包的傳輸和接收 5 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ——'In ^ia— m' In ·11 1· m HI *—^1 (請先聞讀背面之注意事項再填寫本頁) ----.丨訂 Γ------01 a? Β7 五、發明説明( 是由掃瞄器10和電腦12平行同步處理，直到該封包被接 收和處理完畢爲止。在開始掃瞄文件之前，掃瞄器10利用 測試資料封包來測試電腦12和掃瞄器.10之間的資料傳輸 速率，但是這種資料傳輸速率也能夠在傳輸一般的資料封 包時獲得。使甩者可以將程序30中所使用的測試資料封包 用一般經掃瞄而產生的資料封包來取代以.取得資料傳輸速 率，然後再用所得到資料傳輸速率來調整掃瞄器10的掃瞄· 速度。 步進馬達18每走一步，掃瞄模組14內的載子偶合 裝置16便會掃入一條細線狀的文件影像，因此掃瞄器1〇 的掃瞄速度是由步進馬達18帶動掃瞄模組14的步進速度 來決定。在計算掃瞄器10的步進速度時，首先要計算產生 測試資料封包所需要的掃瞄線數，然後步進馬達18的步進 速度便可以由該掃瞄線數和傳輸該測試資料封包所消耗的 時間求得/ 在決定步進馬達is的步進速度時，有一個因素必需 要考慮到那就是步進馬達18和載子偶合裝置16的同步問 題。載子偶合裝置16以一預定的感光週期不斷地偵測所接 收到的反射光線。在每次感光週期後，載子偶合裝置16會 將其內_.的類比記憶體所儲存的類比電壓以類比訊號的方式 循序輸出，然後再將類比記憶體歸零以準備下次的感光。 如果步進馬達18的步進速度與載子偶合裝置16的感光週 期同步，則從載子偶合裝置16取出資料將會變得非常容易 6 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐) (請先聞讀背面之注意事項再填寫本頁) 裝- ’訂 • nn I It— 里-i m n In. S8S678 . A7 B7 五、發明説明（） 控制。建立步進馬達18和載子偶合裝置16之間的同步方 法之一就是將.步進馬達1 8_移動二步所.需要的時間設定爲 載子偶合裝置10的感光週期的整數倍，這樣就能夠很容易. 地完成步進馬達18.和_載子偶合裝置16之間_的.同步控制。 處理程序30可以在許多不同的情況下使用以決定 和建立掃瞄器10適當的.掃瞄速度，一般是建議在掃瞄一份 文件之前執行程序3〇因爲它通常只須要數十微秒就能完 成。這麼短的時間對使用者來說應該是無法察覺的。程序 3〇可以有效的減少前述的掃瞄器資料傳輸速度小於掃瞄 速度的情形，因此可以大量減少前文所說的掃瞄器因過量 資料累積而造成掃瞄暫停的情形，這使得文件掃瞄的效率 可以有效的被提高。 (請先鬩讀背面之注意事項再填寫本頁) 裝· - Φ. 經濟部中央標隼局員工消費合作社印製 7 本紙張尺度適用中國國家標準（CNS ) A4规格（210X297公釐）Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (). ·. '. To solve this problem, the memory capacity must be very large, but the benefits of a large amount of memory It is very doubtful whether ¥ can be a positive example with the price it increases. Therefore, the main object of the present invention is to provide a method for adjusting the scanning speed of a scanner to reduce the aforementioned data transmission speed of the scanner. It is less than the scanning speed to improve the efficiency of the scanner to scan documents. Brief Description of the Drawings Figure 1 is a functional block diagram of an optical scanner connected to a computer. FIG. 2 is a procedure for adjusting a scanning speed of a scanner provided by the present invention. FIG. 1 is a functional block diagram of an optical scanner 10 connected to a computer 12. The scanner 10 includes a scan # 3 group 14 and a stepping motor 18 to precisely drive the scanning die 14 (L a control unit 20 is used to control all the lV parts of the scanner 10 and communicate with the computer 12 communication, a memory 22 is connected to the control unit 18, used to store the image signal generated from the scanning module I4, and a timer 24. The scanning module 14 includes a scanning module 14 for scanning Single-line image carrier coupling device 16 (Charge Coupled Device).-Figure 2 is a procedure 30 for adjusting the scanning speed of the cat scanner 10 provided by the present invention. Before scanning a document, the scanner 10 will use Program 30 to adjust its scanning speed. Program 30 includes the following steps: 4 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) J -------- ~ |. (# Read the notes on the back before filling this page) Order iw Printed by the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperatives printed A7 ____ B7 V. Description of the invention () Step 3 1 Computer 1 2 Scan parameters such as resolution, color or Black and white mode and so on are sent to the scanner 10; Step 32. Scan the received cat. Set the scanner 10; Step 33 Start the timer 24 and transmit a test data packet from the scanner 10 to the computer 12; The length of the data packet is determined by the scanning parameters sent from the computer 12. Step 34 Computer 12 receive and process the data packet; the method used by the computer 12 to receive and process the test data packet is the same as the method used to receive and process a normal data packet; step 35 when the computer 12 has received and processed the data packet, notify the scan Device 10; _ step 36 stops the timer 24 and calculates the transmission time for transmitting the test data packet; step 37 calculates the data transmission rate between the scanner 10 and the computer 12 according to the size of the test data packet and the transmission time used; Step 38 Adjust the scanning speed of the scanner 10 according to the data transmission rate ............... .. fjJeS ·...--..............-, · Degree,. Step 39 Start scanning the file with the new scanning speed In steps 3 3 and 34, test data packet transmission and reception 5 This paper size applies the Chinese National Standard (CNS) A4 specification (21 0X297mm) —— 'In ^ ia— m' In · 11 1 · m HI * — ^ 1 (Please read the precautions on the back before filling in this page) ----. 丨 Order Γ ---- --01 a? Β7 V. Description of the invention (It is processed in parallel by the scanner 10 and the computer 12 until the packet is received and processed. Before scanning the document, the scanner 10 uses the test data packet to test the data transmission rate between the computer 12 and the scanner .10, but this data transmission rate can also be obtained when transmitting a general data packet. The tester can replace the test data packet used in the program 30 with a data packet generated by scanning in general to obtain a data transmission rate, and then use the obtained data transmission rate to adjust the scanning of the scanner 10 · Speed. With each step of the stepping motor 18, the carrier coupling device 16 in the scanning module 14 scans a thin-line document image. Therefore, the scanning speed of the scanner 10 is driven by the stepping motor 18. The stepping speed of the module 14 is determined. When calculating the stepping speed of the scanner 10, it is necessary to first calculate the number of scanning lines required to generate a test data packet, and then the stepping speed of the stepping motor 18 can be determined by the number of scanning lines and transmitting the test data packet. Elapsed time is obtained / When determining the stepping speed of the stepping motor is, one factor that must be considered is the synchronization of the stepping motor 18 and the carrier coupling device 16. The carrier coupling device 16 continuously detects the received reflected light at a predetermined photosensitive period. After each photosensitive period, the carrier coupling device 16 will sequentially output the analog voltage stored in the analog memory of _. By means of an analog signal, and then reset the analog memory to zero to prepare for the next photosensitivity. If the stepping speed of the stepping motor 18 is synchronized with the photosensitive period of the carrier coupling device 16, it will be very easy to take out the data from the carrier coupling device 16. 6 This paper size applies the Chinese National Standard (CNS) Α4 specification (210X297 (Mm) (Please read the notes on the back before filling this page) Binding-'Order • nn I It— 里 -imn In. S8S678. A7 B7 V. Description of the invention () Control. One of the methods for establishing synchronization between the stepping motor 18 and the carrier coupling device 16 is to set the stepping motor 1 8_ to move in two steps. The time required is set to an integer multiple of the photosensitive period of the carrier coupling device 10, so The synchronization control between the stepping motor 18. and the carrier coupling device 16 can be easily accomplished. The processing program 30 can be used in many different situations to determine and set up the scanner 10 appropriately. For scanning speed, it is generally recommended to execute the program 3 before scanning a document because it usually only takes tens of microseconds. Can be done. Such a short time should be imperceptible to the user. The program 30 can effectively reduce the aforementioned situation in which the data transmission speed of the scanner is less than the scanning speed. Therefore, it can greatly reduce the scanning pause caused by the excessive data accumulation in the aforementioned scanner, which makes the document scanning The efficiency can be effectively improved. (Please read the precautions on the back before filling this page) Installation ·-Φ. Printed by the Employees' Cooperatives of the Central Bureau of Standards, Ministry of Economic Affairs 7 This paper size applies to China National Standard (CNS) A4 (210X297 mm)