7twf.doc/006 I246311 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種傳真（Fax)裝置，且特 有關於一種在通話狀態下可同時收送影像之傳真： 置。 衣 【先前技術】 視訊通訊系統對大企業來說，已經是非 的通訊系統，但對於一般的小家庭來說，因 於電話網路的頻^，因此很難達到即時的視訊通^ 更詳細地說，當類比信號以數位的方式傳送 位凡速率（Bit Rate)係依據類比信號所採樣的 和編碼方式來決^。假如取樣的速率至少為一個類 比仏號中最高頻率的兩倍以上’則此類比信號就可 以精確地被傳送出去。因此，標準4KHz的電話通道， 2每秒_G次來取樣，而編碼的過程中對每個取 樣式使用8位元來描述其振幅。所以對於單一個電 話訊息，每秒總共有64，_個位元被傳送出去。因 此-般家用的電話線最高的傳輸速率是每秒、64κ位 兀但疋個包括聲音與晝面的視訊訊號的頻率係 接近4. 2MHz ’若是要使絲㈣電話線來傳輸，必 須經過很複雜的壓縮/解壓縮技術，並且在壓 :壓縮的過程中’勢必使得視訊訊號產生嚴重的失 真。 在目前來說，網際網路（Internet)上的一些伺 服器（SerVer)會提供即時通訊的服務。也就是說， i24m twf.doc/006 兩個通訊端的電腦上，都 夕克風，就可以利用網際網攝影機和 但是若要使用這此即時白傳迗聲音和影像。 懂得-些比較進；的二:服：：使用者至少要 電腦操作的使用者，4 I 但疋對於一些不懂 就相對地提高 ☆要使用這些服務，其難度也 【發明内容】 因此，本發明的目的 態下可同時收送影像 直=如供—種在通話狀 訊設備來收送影像!傳/、衣置，可以用現有的通7twf.doc / 006 I246311 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a fax device, and particularly relates to a facsimile device that can simultaneously send and receive images during a call. [Previous technology] The video communication system is a non-existent communication system for large enterprises, but for ordinary small families, it is difficult to achieve real-time video communication due to the frequency of the telephone network ^ More detailed In other words, when the analog signal is transmitted digitally, the bit rate is determined according to the sampling and encoding method of the analog signal. If the sampling rate is at least twice the highest frequency in an analogue sign, then the analogue signal can be transmitted accurately. Therefore, for a standard 4KHz telephone channel, 2 G samples are taken per second, and the encoding process uses 8 bits for each sampling pattern to describe its amplitude. So for a single phone message, a total of 64 bits per second are transmitted. Therefore, the highest transmission rate of a typical home phone line is 64 kbits per second, but the frequency of a video signal including sound and daylight is close to 4.2 MHz. 'If you want to use a wire phone line for transmission, you must go through Complicated compression / decompression technology, and in the process of compression: compression will inevitably cause serious distortion of the video signal. At present, some servers on the Internet (SerVer) provide instant messaging services. That is to say, i24m twf.doc / 006 on both computers of the communication terminal can use the internet camera and if you want to use this real-time white voice and video. I know-some are more advanced; two: service: users who at least need computer operation, 4 I but 疋 for some who do not understand, relatively increase ☆ to use these services, the difficulty is also [inventive content] Therefore, this Under the purpose of the invention, the image can be sent simultaneously. If it is provided, it can be used to send and receive images in a call message device!
本發明的再一目的0垣W 同時收送影像之傳直壯、=’、種在通話狀態下可 就可以收送影像和聲音。*要間早的麵作步驟， 本發明的又一目的是提供一 同時收送影像之傳直方法，心^通雜悲下可 下，直接雒太ηΓ八 在不掛電話的情況 直接又方冋時互相傳送影像。 收送旦4 =的在提供—種在通話狀態下可同時 收廷衫像之傳真裝置，用來了 單元，盆包括了影像擷取裝置和控制 影像横dm:裝r用來從 :數和切換電路，此二者都搞 ί、、Ή數據機係將控制單元所取得的影像之資訊 ίϊΐ電話網路，而切換電路則依據控制單元來決 疋將電活網路連結至數據機或者是電話裝置。 I2463JJ twf.doc/006 I2463JJ twf.doc/006 牡不赞明的 告丨丨雷玫4德立、- 、 j ^ ’控制單元包括了； 行通話時，控制電路= ;網路與收話端進 :至數據機’亚且控制數據』= 收活端，以啟動收話端之數n是頒讯唬至 藉由電話網路傳送影像之資、：巧機可以 端所發出的器，接收並解碼發話 自動應答 猶TMF)訊號，使得數據機可以 續取，ΐ像擷取裝置係包括攝像單元和記情卡 =中之—。其中攝像單元用= 爾〜像以傳达至控制單元，而記 小4 接儲存有影像的記憶卡。 〜"貝裝置則耦 作介下’久發明之傳真裝置更包括操 牟田τ ,4不态早兀，以上二者都耦接至控 ^，者使用電話裳置與收話端通話時，可以_由 ί:，，面來控制本發明之傳真裝置，在通話的= 來!員收Ϊ端交換影像資料。此外，顯示器單开則Ϊ 置r影像，以及由另-傳= 7得迗來之影像二者至少其中之一。 包括擇Γί例中’本ϊ明之傳真裳置可以 * /外接顯不11 ’以‘顯示影像擷取 1246311 13467twf.doc/006 裝置内的影像，以及由另一傳真裝置所傳送來之影 像二者至少其中之一。 〜 從另一觀點來看，本發明提供一種在通話狀態 下可同時收送影像之傳真方法。當發話端與收話端 進行通話時，本發明可以在不斷線的狀況下進行數 據通讯連線（Data Communication Linking)以交換 影像，其實施的步驟如下所述。首先暫停發話端與 收話端之間的通話連線，也就是使發話端與收話端 之間的通話連線進入靜音的狀態，再啟動發話端的 數據通訊功能。然後建立發話端與收話端之間的數 據通訊連線，以便雙向傳輸影像。 在本發明的實施例中，建立發話端與收話端之 門的數據通汛連線之步驟如下所述。首先發話端合 以雙音複頻編碼方式送出一個雙音複頻（DTMF)訊& =收話端。然後收話端會解碼此雙音複頻訊號以喚 二收活端之數據通訊功能。接著，發話端之數據通 =功能會與收話端之數據通訊功能交握 anjshake)，就可以建立發話端與收話端之間的數 此外，當傳輸完影像後，發話端和收話端會各 方傳送來之影像。另外，本發明會先恢復 端收話端之間的通話連線，然後在停止發話 因端之數據通訊功能，以使得通話連線不會 ^據通訊連線而中斷。其中，輸出對方傳送來 ή的步驟’包括將對方傳送來之影像顯示於顯 1 T4o7twf.doc/006 示器上，以及由傳真機列印出來二者至少其中之一。 一般來說，發話端和收話端係 話網⑽STN)㈣立縣連線和轉㈣連線 的電：ΐ】述$ ΐ:Γ i ΐ使用一具有數據機功能 At ," 就可以輕易貫現類似於視訊通訊的功 =。此外，本發明也具有操作介面，因此使 作：驟，就可以傳送影像或是聲音。另外 ;日二δ又计了切換電路，因此在不掛斷電話的情 况下，可以讓兩個通訊端直接互相傳真影像。 f丨本^明僅對影像資料加以壓、縮，又在通 用者指定提供某一段時間，令數據機 太^σ卩的心頻寬’迅速交換影像資料。因此， ϋ月所提供的影像品質非常高，並且，本發明對 否口音内容並未進行壓端虛 持原有的品質。處因此5吾音訊號可以維 更明ίΐΐ發明之上述和其他目的、特徵和優點能 二易懂，下文特舉較佳實施例，並配合所附圖 式’作詳細說明如下。 【實施方式】 ，1係繪示依照本發明之一較佳實施例的一種 體架構方塊圖。請參照圖1，本發明所 的雷裝置100’係連結例如具有傳真機功能 2電：裝i 120和例如大幕切換電話網路的電話網 ^ .:在傳真裝置1〇0中，影像擷取裝置102的 雨 係送至控制單元1〇4，而控制單元1〇4則用 1246¾ twf.doc/006 來控制數據機106和切換電路1〇8。 清縯參照圖1，電爷駐 路⑽而連結至電話網=：〇 ==透過切換電 依據控制單元料’而切換電路108則 電話裝置120或是以0電6話=^^^ 路14°與-個收話端通話時， ίϋΐΐ 士會控制切換㈣108將電話網路140 直：罢：5舌4置12°。此時，若是使用者要使用傳 =GG傳送由影像#貞取裝置1()2所擷 ;收話端時，控制單元1〇4就會從影像擷取裝置; 將所要傳送的料之資崎W，並且切置換^ 路108改將電話網路14〇連結至數據機ι〇6。、 i—個數據機要能運作，必須送出振鈐訊號 時、力^，但是當使用者與收話端正處於通話狀態 f，〉又有辦法發出振鈴訊號。因此，本發明之傳真 ，置100的控制單元1〇4會控制數據機1〇6以雙音 硬頻編碼的方式，送出雙音複頻訊號至收話端，以 =通話時還能夠喚醒對方的數據機。當收話端的 數據機被喚醒後，傳真裝置，1GG的數據機1G6便會 與其交握，以便建立數據通訊連線，而能夠將從^ k擷取裝置1 〇 2取出來的影像藉由電話網路14 〇送 ^收話端。當傳真裝置100傳送完影像之後，控制 皁元104會先控制切換電路1〇8恢復電話網路14〇 f電話裝置120之間的通話連線，接著再關閉數據 機106的功能，而收話端也會進行同樣的動作。因 1246311 13467twf.doc/006 此 ^當傳真裝置i〇〇傳送完影像之後，發話端與收 # 之間的通话連線並不會被中斷。 _ —圖2係繪示依照本發明之一較佳實施例的控制 單π 104内部結構方塊圖。請參照圖2，在本實施 例中，控制單元104具有控制電路203和雙音副頻 解碼電路201。其中，控制電路2〇3係耦接影像擷 取裝置102，以便取出影像擷取裝置1〇2内之景彡像 的資訊，其中影像擷取裝置102可以包括例如CCI；感 測器（CCD Sensor)的攝像單元211。此外，控制電 路203係控制切換電路1〇8，以決定電話網路 透過切換電路108而聯結至電話裝置12〇或是數據 機106。另外，控制電路2〇3也控制數據機1〇6，當 在通話中要傳真影像時，控制電路203會控制數二 ，106傳送雙音複頻訊號至收話端。當收話端控制 早凡104收到發話端所發出的複頻訊號後，合交由 雙音複頻解碼電路201㈣碼，並且將解碼二結果 2 =制電路203,控制電路2〇3就會依據解碼的 =果來喚醒數據機106，以建立和收話端 據通訊連線。 U们數 圖3係繪示依照本發明另一實施例的—種 二置硬體架構方塊圖。請參照圖3，在另一 ^ =例中，傳真裝置100還可以包括顯示器單元301，、 j耦接至控制單元1〇4。其中，顯示器單元斯 ^括了液晶顯示面板（LCD Panel)。當傳真 利用影像擷取裝置102拍攝影像後，可以由；示= 11 1246311 13467twf.doc/006 單元301顯示出來，或 ;置也可以顯示在口傳f 外，為使本發明更容易 ^早凡301上。此 還設置了操作介面3〇3。並本，明之傳真裝置100 包括了數個功能按鍵，當^ ^作介面別3可以 像至收話端時，可以藉由時要傳送影 致能功能按^乍"面303，例如 來傳真影像。此二二傳真裝置_ 八用來讀取例如安裝於數 Ί 〇5: 取其内部所儲存的影像㈣卡，以讀 301 置3二的:施：:係配置了顯示器單元 下，本菸二4 。但疋因為考量成本的因素 “ = = 改為用來外接例 低製造疋電視等顯示器的顯示器介面，以降 傳直會示依照本發明之一較佳實施例的一種 二二程圖。請參照圖4,本發明另外也提供 a一種在通話狀態傳真影像的傳真方法，可以適用 二Ή話端與一個收話端藉由例如公用交換電話 气：i:通話時，在不斷線的狀況下進行數據通 ^遷線以傳真影像。本發明的步驟係敘述如下。首 士如步驟S401所述，暫停發話端與收話端之間的通 =連線。然後如步驟S4〇3所述，啟動發話端的數據 ^訊功能。接著如步驟S420所述，建立發話端與收 12 1246311 13467twf.dOC/〇〇6 店端之間的數據通訊連線，以便進行步驟s 雔 向傳送影像。 ，又 請繼續參照圖4，更詳細地來看，當進彳_ *半 驟S403後，發話端會如步驟S422所述，以 頻編碼的方式送出一個雙音複頻訊號至收話=。曰然 後收話端如步驟S424所述，解碼振鈴訊號以喚醒收 話端的數據通訊功能。當發話端和收話端的數據通 汛功能的都被啟動後，則進行步驟S426，使發話端 之數據通訊功能與收話端的數據通訊功能交握，以 建立發話端和收話端之間的數據通訊連線。此時， 如步驟S442所述，開始雙向傳輸影像之資訊，然後 如步驟S444所述，發話端和收話端輸出對方傳送來 的影像，其包括了將對方傳送來的影像由傳真機列 印出來，以及由顯示器或是在螢幕上二者至少其中 之一。此外，當進行完步驟S442之後，則如步驟S446 所述，先恢復發話端和收話端之間的通話連線，最 後再如步驟S448所述，停止發話端和收話端的數據 通訊功能，以避免在傳輸影像完畢後，發話端和收 話端之間的通話連線被中斷。 綜上所述，本發明包括了以下幾個優點： 1·本發明可以利用例如公用切換電話網路來傳 送影像，因此本發明只需要用普通的通訊設備，就 能達到類似於視訊通訊的效果。 2·本發明内係配置了操作介面，使用者只要藉 由此操作介面，就可以簡單的控制本發明來傳送影 1246¾ twf.doc/006 像。 y 3.本發明因為配置了切換電路，在傳送完影像 後，會先恢復通話連線在關閉數據通訊的功能。因 此，本發明可以在不掛電話的情況下，直接雙方互 相傳送影像。 4.在傳真機非常普及的今天，本發明可以配合 二有數據機功能的電話裝置，就可以幾乎是即時 看到收話端所傳來的影像。 一时5.本發明内可以包括顯示器單元或者是外接顯 γ 此本發明可以區分多種價位提供使用者選 旦疋同樣可以達到類似視訊通訊的效果。 r/j發明僅對影像資料加以壓縮，又在通話過 二J用者指定提供某一段時間，令數據機佔用 i;二：f寬，迅速交換影像資料，故本發明所 徒供的鬲影像品質非常高。 a立2發明對語音内容並未進行壓縮處理，因此 ^曰汛唬可以維持原有的品質。 雖然本發明已以較佳實施例揭露如上，然 非用以限定本發明，任何熟習此技藝者，在不脫f 本發明之精神和範圍内，當可作些 因此本發明之保護範圍 ;f=更動與满飾， 界定者為準。乾I視相之申請專利範圍所 【圖式簡單說明】 圖1係綠示依照本發明 傳真裝置硬體架構方塊圖。“土實施例的-種 14 I246mf,oc/006 圖2係繪示依照本發明之一較佳實施例的控制 單元内部結構方塊圖。 圖3係繪示依照本發明另一實施例的一種傳真 裝置硬體架構方塊圖。 圖4係繪示依照本發明之一較佳實施例的一種 傳真方法流程圖。 【主要元件符號說明】 100 :傳真裝置 102 :影像擷取裝置 104 :控制單元 106 :數據機 108 :切換電路 120 :電話裝置 140 :電話網路 201 :雙音複頻解碼電路 203 :控制電路 211 :攝像單元 301 :顯示器單元 3 0 3 :操作介面 305 :記憶卡讀取裝置 S401 、 S403 、 S420 、 S422 、 S424 、 S426 、 S440 、 S442 、 S444、S446、S448 :在通話狀態下可同時收送影像之傳真 方法的步驟 15Another object of the present invention is to simultaneously transmit and transmit video and video, so that video and audio can be sent and received in a call state. * In order to take steps early, another object of the present invention is to provide a method for transmitting and transmitting images at the same time, which can be done under the sorrow and sorrow. Directly 雒 Γ Γ 八 directly and squarely without hanging the phone Instantly transfer images to each other. Received 4 = provided-a fax device that can simultaneously receive a shirt image during a call, used as a unit, the basin includes an image capture device and control image horizontal dm: installed r is used to: Switching circuit, both of which involve the data network of the image obtained by the control unit, the telephone network, and the switching circuit depends on the control unit to connect the electrical network to the data machine or Telephone device. I2463JJ twf.doc / 006 I2463JJ twf.doc / 006 Uncomfortable report 丨 丨 Lei Mei 4 De Li,-, j ^ 'Control unit included; In the call, the control circuit =; Network and receiver Progress: Go to the modem 'Asia and control data' = number of receivers to activate the receiver. N is the amount of information that can be used to send images through the telephone network. It also decodes the utterance and automatically responds to the TMF signal, so that the modem can continue to take it. The image capture device includes a camera unit and a memory card. Among them, the camera unit is used to transmit the image to the control unit, and the memory card is used to store the image. ~ &Quot; Bei device is coupled as the introduction of the long-invented facsimile device, including the operating field τ, 4 is not premature, both of which are coupled to the control ^, those who use the phone to set up and talk to the receiver, It is possible to control the facsimile device of the present invention by :, to exchange image data at the receiving end of the call. In addition, when the display is turned on, at least one of the r image and the image obtained by another-transmission = 7 is set. Included in the example is 'The fax set of this book can be used * / External display 11' to display image capture 1246311 13467twf.doc / 006 Both the image in the device and the image sent by another fax device At least one of them. ~ From another point of view, the present invention provides a facsimile method that can simultaneously send and receive images during a call. When the calling end and the receiving end are talking, the present invention can perform data communication linking (Data Communication Linking) to exchange images in a continuous state. The implementation steps are as follows. First, the call connection between the calling end and the receiving end is suspended, that is, the call connection between the calling end and the receiving end is muted, and then the data communication function of the calling end is started. Then establish a data communication connection between the calling end and the receiving end in order to transmit images in both directions. In the embodiment of the present invention, the steps for establishing a data flood connection between the calling terminal and the receiving terminal are as follows. First, the calling end sends a dual-tone multi-frequency (DTMF) message in a dual-tone multi-frequency coding mode & Then the receiver will decode the dual tone multi-frequency signal to call the data communication function of the second receiver. Then, the data communication function of the calling terminal and the data communication function of the receiving terminal will be held together (anjshake), and the number between the calling terminal and the receiving terminal can be established. In addition, after transmitting the image, the calling terminal and the receiving terminal Images from all parties. In addition, the present invention first restores the call connection between the receiving end of the call, and then stops the call due to the data communication function of the end, so that the call connection is not interrupted according to the communication connection. Among them, the step of outputting the price transmitted by the other party includes displaying at least one of the image transmitted by the other party on a display 1 T4o7twf.doc / 006 and printing by a facsimile machine. Generally speaking, the calling end and the receiving end are the telephone network (STN) of the county line and the transfer line: ΐ] Description $ ΐ: Γ i ΐ You can easily use a modem function At, " The performance is similar to video communication. In addition, the present invention also has an operation interface, so it can be used to transmit video or sound. In addition, the switching circuit is counted on the second delta, so the two communication terminals can directly fax images to each other without hanging up the phone. f This document only compresses and shrinks the image data, and also provides the user with a certain period of time to make the modem's heart bandwidth too fast to exchange image data. Therefore, the quality of the image provided by Yueyue is very high, and the present invention does not hold down the original quality of the accent content. Therefore, the above-mentioned and other objects, features, and advantages of the invention can be more clearly understood. The preferred embodiments are described in detail below with reference to the accompanying drawings. [Embodiment], 1 is a block diagram showing a body structure according to a preferred embodiment of the present invention. Please refer to FIG. 1. The mine device 100 ′ according to the present invention is connected to, for example, a facsimile machine 2 and a telephone network such as an i 120 and a screen switching telephone network ^. In the facsimile device 100, image capture The rain system of the taking device 102 is sent to the control unit 104, and the control unit 104 uses 1246¾ twf.doc / 006 to control the modem 106 and the switching circuit 108. For clear performance, refer to Figure 1. The master is connected to the telephone network at the station =: 〇 = = Switch the circuit 108 by switching the power according to the control unit material, or the telephone device 120 or 6 calls with 0 = ^^^ Road 14 ° When talking with a receiver, the person will control the switching, 108 will switch the telephone network 140 straight: stop: 5 tongues, 4 12 °. At this time, if the user wants to use transmission = GG to transmit the image captured by image # 取 取 装置 1 () 2; at the receiving end, the control unit 104 will capture the device from the image; In addition, it is necessary to connect the telephone network 14 to the modem 106 by changing the route 108. For i-modem to work, it is necessary to send out the ringing signal when it is working, but when the user and the receiver are in a conversation state f, there is a way to send a ringing signal. Therefore, the facsimile control unit 104 of the present invention will control the modem 10 to send a dual-tone multi-frequency signal to the receiving end in a dual-tone hard-frequency encoding manner, so that the other party can wake up the other party during a call. Modem. When the modem on the receiving end is awakened, the fax device and 1G6 modem of 1GG will be handed to it in order to establish a data communication connection, and the image retrieved from the ^ k capture device 1 02 can be used by the telephone. Internet 14 〇 send ^ receiving end. After the facsimile device 100 transmits the image, the control unit 104 will first control the switching circuit 108 to restore the call connection between the telephone network 140f and the telephone device 120, and then turn off the function of the modem 106 to receive the call. The terminal will do the same. Because 1246311 13467twf.doc / 006 ^ After the fax device iOO has transmitted the image, the call connection between the originator and receiver # will not be interrupted. Fig. 2 is a block diagram showing the internal structure of a control unit π 104 according to a preferred embodiment of the present invention. Referring to Fig. 2, in this embodiment, the control unit 104 includes a control circuit 203 and a dual-tone sub-frequency decoding circuit 201. The control circuit 202 is coupled to the image capture device 102 so as to obtain information of the scene image in the image capture device 102. The image capture device 102 may include, for example, a CCI; a sensor (CCD Sensor) ) Camera unit 211. In addition, the control circuit 203 controls the switching circuit 108 to determine whether the telephone network is connected to the telephone device 12 or the modem 106 through the switching circuit 108. In addition, the control circuit 203 also controls the modem 106. When a fax image is to be transmitted during a call, the control circuit 203 will control the number two and 106 to transmit a dual-tone multi-frequency signal to the receiver. When the receiving end controls Zaofan 104 receiving the complex frequency signal sent by the calling end, the code is combined by the two-tone complex frequency decoding circuit 201, and the decoding result 2 = control circuit 203, and the control circuit 203 will The modem 106 is awakened according to the decoded result to establish a data communication connection with the receiving terminal. Figures of U Figure 3 is a block diagram of a dual hardware architecture according to another embodiment of the present invention. Referring to FIG. 3, in another example, the facsimile device 100 may further include a display unit 301, and j are coupled to the control unit 104. Among them, the display unit includes a liquid crystal display panel (LCD Panel). After the facsimile captures the image using the image capture device 102, it can be displayed by the unit; 301 = 11 1246311 13467twf.doc / 006; or can also be displayed outside the oral f, in order to make the present invention easier ^ Zao Fan 301 on. This also sets the operation interface 303. In this version, Ming fax device 100 includes several function keys. When ^ ^ is used as interface type 3 and can be used as the receiver, you can send the shadow enable function by pressing ^^ " face 303, for example, to fax image. This two-facsimile device _ eight is used to read, for example, installed in a digital device. 〇5: Take the image card stored in it to read 301. Set three two: Shi :: It is equipped with a display unit. 4. However, because of cost considerations, "= = instead, it is used to connect display interfaces of low-manufactured monitors, such as televisions, to reduce transmission and show a two-to-two diagram according to a preferred embodiment of the present invention. Please refer to the figure 4. The present invention also provides a facsimile method of facsimile image in a call state, which can be applied to the two terminals and a receiver by exchanging telephone gas, for example: i: during a call, data is continuously transmitted The transfer line is used to fax images. The steps of the present invention are described as follows. The first person suspends the connection between the calling end and the receiving end as described in step S401. Then, as described in step S403, the calling is started. Data communication function. Then, as described in step S420, establish a data communication connection between the calling terminal and the receiving 12 1246311 13467twf.dOC / 〇〇6 store, so as to perform step s to send images in the direction. Please continue Referring to FIG. 4, in more detail, after entering _ * half step S403, the calling end will send a dual-tone multi-frequency signal to the receiving call as described in step S422 in frequency encoding. End as step S424 As described above, the ringing signal is decoded to awaken the data communication function of the receiving end. When the data communication function of the calling end and the receiving end is activated, step S426 is performed to enable the data communication function of the calling end and the data communication function of the receiving end. Handshake to establish a data communication connection between the calling end and the receiving end. At this time, as described in step S442, two-way transmission of image information is started, and then as described in step S444, the calling end and the receiving end output each other. The sent image includes printing out the image sent by the other party by a facsimile, and at least one of the display and the screen. In addition, after step S442 is performed, it is performed as in step S446. As described above, the call connection between the calling end and the receiving end is restored first, and finally the data communication function of the calling end and the receiving end is stopped as described in step S448, so as to avoid the calling end and the receiving end after transmitting the image. The call connection between them is interrupted. In summary, the present invention includes the following advantages: 1. The present invention can use, for example, a public switched telephone network to transmit images Therefore, the present invention only needs to use ordinary communication equipment to achieve the effect similar to video communication. 2. The present invention is equipped with an operation interface, and the user can simply control the invention to transmit by using the operation interface. Image 1246¾ twf.doc / 006 image. Y 3. Because the present invention is equipped with a switching circuit, after the image is transmitted, the call connection function will be restored and the data communication function will be closed. Therefore, the present invention can be used without a call. Next, the two parties directly send images to each other. 4. Today, facsimile machines are very popular, and the present invention can cooperate with two telephone devices with modem functions, and you can see the images from the receiver almost instantly. 5. The present invention may include a display unit or an external display gamma. The present invention can distinguish a variety of price points and provide users with a choice, and can also achieve similar effects as video communications. The r / j invention only compresses the image data, and the user has specified a certain period of time after the call to make the modem occupy i; 2: f width, quickly exchange image data, so the image provided by the invention Very high quality. The A2 invention does not compress the speech content, so it can maintain the original quality. Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some of the protection scope of the present invention without departing from the spirit and scope of the present invention; f = Modifications and decoration, whichever is defined. The scope of the patent application scope of the dry vision is as follows: [Schematic description] FIG. 1 is a green block diagram of the hardware structure of the facsimile device according to the present invention. "Earth Embodiment-Species 14 I246mf, oc / 006 Figure 2 is a block diagram showing the internal structure of a control unit according to a preferred embodiment of the present invention. Figure 3 is a facsimile according to another embodiment of the present invention Block diagram of the device hardware architecture. Figure 4 is a flowchart of a facsimile method according to a preferred embodiment of the present invention. [Description of main component symbols] 100: facsimile device 102: image capture device 104: control unit 106: Modem 108: Switching circuit 120: Telephone device 140: Telephone network 201: Dual tone multi-frequency decoding circuit 203: Control circuit 211: Camera unit 301: Display unit 3 03: Operation interface 305: Memory card reading device S401, S403, S420, S422, S424, S426, S440, S442, S444, S446, S448: Step 15 of a fax method that can send and receive images at the same time during a call