200922130 -------*，， 一一457twf.doc/p 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種信號傳輸技術，且特別是有關於 一種用於降低電磁干擾的傳輸數位信號的技術。 【先前技術】 近年來’由於印刷電路板不斷進步，使得電子產品的 應用日益廣泛，需求日益增加，各種電子產品的電路設計 越來越複雜。印刷電路板（Printed circuit board，PCB)幾 乎會出現在每一種電子設備當中。設備中幾乎所有的電子 元件都是鑲在大小各異的PCB上。除了固定各種小元件 外，PCB的主要功能是提供其上各項元件的相互電氣連 接。如果標準的PCB上沒有元件，也常被稱為“印刷線路 板 Printed Wiring Board ( PWB )，，。 口j刀為早面板、叉囬极w/百低μ工夕層板及歡 板。PCB板本身的基板是由絕緣隔熱、並不易彎曲的材質 所製作成。在表面可以看到的細小線路材料是銅箔，原本 ^是覆蓋在整個板子上的’而在製造過程中部份被钱刻 地理掉’留下來的部份就變成網狀的細小線路了。這些線 路被稱作轉（eGndu_pattem)或稱佈線，细來提供 PCB上元件的電路連接。 ’、 接丈曰件固定在簡上面’通常是將元件的接腳直 電二％ 般而s’焊接在pCB上的元件為電阻、 ΓI 士體電路（IC)塊等。但是，在PCB上的各 疋工日守會產生電磁波，而產生電磁干擾現象，稱為砸 200922130 U/U46D.l w z^457twf.doc/p (mec_nagnetiCInterference)。隨著電子設備為了符合 便於攜帶的要求’如汽車電話、膝上電腦等設備，電子設 備越來越小、越來越複雜，需要的元件越來越多，PCB1 的線路與元件也越來越錢，電針擾愈加*容忽視。 電磁相容性（Electromagnetic Compatibility)縮寫 EMC’就是指St子設觀不顿其他設備，時也不受 其他設備的影響。電磁相容性是產品品質最重要的指標之 一’涉及人身和環境保護。 丁 一般，在PCB上元件間的傳輸信號為邏輯（1〇笆化） 信號，邏輯=號的週誠常都是—定的，由於信號週期很 准，會產生單一頻率點或對應此單一頻率的倍數頻率點上 較高的EMI。如果EMI較高’則會降低產品的品質，使產 品降級，造成經濟上的損失。如果扮^超標，則會導致拿 不到EMC證書，產品不能順利上市，降低了 pCB的實用 性’同時也增加了生產成本。 、 為暸解決上述問題，台灣專利號為〗2538〇2的發明專 利，參照圖1，提供了一種低雜訊資料輸出驅動電路，包 括：資料比較電路1(U、資料反轉判斷電路1〇3、資料反轉 信號產生電路105及資料反轉電路107。資料比較電路1〇1 依序在第一及第二週期中接收多個資料位元之數值而產生 —組資料變更信號，此組信號對應於在第一及第二資料週 期中具有不同數值之資料位元數目。資料反轉判斷電路 103依據資料變更信號產生相對之資料變更電位，並將資 料變更電位與參考電位比較而產生對應之判斷信號。資料 200922130 ：457twf.d〇c/p 反轉信號產生電路105為第一 值產生一第—及第二資週期中之貧料位元數 號係依據判斷作，：第其中第二資料反轉信 電請糊轉信號而產生。資料反轉 -.^ , 、反轉唬選擇性地輸出每一資料位 兀在弟—週期中之數值或補數之—。 碰/H技術’軸_赠崎出骑電路來降低200922130 -------*,, 457 twf.doc/p IX. Description of the Invention: [Technical Field] The present invention relates to a signal transmission technology, and in particular to a method for reducing electromagnetic Interfering techniques for transmitting digital signals. [Prior Art] In recent years, due to the continuous advancement of printed circuit boards, the application of electronic products has become more widespread and the demand has been increasing, and the circuit design of various electronic products has become more and more complicated. Printed circuit boards (PCBs) appear in almost every electronic device. Almost all of the electronic components in the device are mounted on PCBs of various sizes. In addition to fixing various small components, the main function of the PCB is to provide electrical interconnection of the various components thereon. If there is no component on the standard PCB, it is often referred to as “Printed Wiring Board (PWB),”. The j-knife is an early panel, a fork-back pole w/ hundred low μ eve layer board and a board. PCB The substrate of the board itself is made of a material that is insulated and hard to bend. The small circuit material that can be seen on the surface is copper foil, which is originally covered on the whole board and is partially part of the manufacturing process. The money is carved out of the 'left part' becomes a network of small lines. These lines are called eGndu_pattem or wiring, which provides the circuit connection of the components on the PCB. ', the connector is fixed at On the simple side, 'usually the component's pin is directly charged to 2%, and the component soldered to the pCB is a resistor, a ΓI, a body circuit (IC) block, etc. However, each completed day on the PCB will be generated. Electromagnetic waves, which cause electromagnetic interference, are called 砸200922130 U/U46D.lwz^457twf.doc/p (mec_nagnetiCInterference). With electronic devices in order to meet the requirements of portability, such as car phones, laptops, etc., electronic devices Getting smaller and smaller More and more complex, more and more components are needed, PCB1's lines and components are getting more and more money, and electro-acupuncture is more and more neglected. Electromagnetic compatibility (EMC) is called "St. Other equipment is not affected by other equipment. Electromagnetic compatibility is one of the most important indicators of product quality 'involving personal and environmental protection. D. Generally, the transmission signal between components on the PCB is logic (1〇笆The signal, logic = number of Zhou Cheng is always - fixed, because the signal period is very accurate, will produce a single frequency point or a higher frequency of EMI corresponding to this single frequency. If the EMI is higher ' Reducing the quality of the product and degrading the product, resulting in economic losses. If the standard is exceeded, the EMC certificate will not be obtained, and the product will not be listed smoothly, which will reduce the practicability of the pCB and increase the production cost. To solve the above problem, the invention patent of Taiwan Patent No. 2538〇2, with reference to FIG. 1, provides a low noise data output driving circuit, including: data comparison circuit 1 (U, capital The inversion determination circuit 1〇3, the data inversion signal generation circuit 105, and the data inversion circuit 107. The data comparison circuit 1〇1 sequentially receives the values of the plurality of data bits in the first and second periods to generate a group. a data change signal, the set of signals corresponding to the number of data bits having different values in the first and second data periods. The data inversion determining circuit 103 generates a relative data change potential according to the data change signal, and changes the data potential Corresponding judgment signal is generated by reference potential comparison. Data 200922130: 457twf.d〇c/p The inversion signal generation circuit 105 generates a first value and a poor material bit number in the second capital period. Work,: The second data inversion of the signal, please turn the signal to produce. Data inversion -.^, , inversion 唬 selectively output each data bit 兀 in the younger-period of the value or complement. Touch / H technology 'axis _ gift Qi riding circuit to reduce
C a 電路’並不適用於日錢小的pcb，並 ^木用夕種電路必騎加了原材料的消耗，增加了 成本。 【發明内容】 磁干擾信號的方法和裝 高的電磁干擾信號，生產 本發明提供一種傳輸低電 置，以解決現有技術中帶來的較 成本南的問題。 士，月提出一種傳輸低電磁干擾信號的裝置，用於一 數位=號傳輸’此裝置包括：編碼信號產生器、第一元件 r 件。編碼信號產生器是用於產生編碼信號，此 G 編碼Μ的週期是鶴的。第—元件包括第—互斥或電 路，河述第-互斥或電路具有第—輸入端、第二輸入端以 及輸出端，第-輸入端叙接至編碼信號產生器，第二輸入 端耦接至源信號，用於將源信號與編碼信號執行互斥或運 算，以產生低電磁干擾輸出信號。第二元件包括第二互斥 或電路’前述第二互斥或電路具有第一輸入端、第二輸入 端以及輸出端，第-輸入端麵接至編瑪信號產生器，第二 輸入端耗接至第-互斥或電路的輪出端，用於將低電磁干 200922130 457twf.doc/p 擾輸出信號與編碼信號執行互斥或運算，以回復源信號。 依照本發明的一實施例所述的傳輪低電磁干擾信號 的裝置’其中編碼信號為白雜訊。 σ… 〇依照本發明的另一實施例所述的傳輸低電磁干擾信 號的裝置，上述之傳輸低電磁干擾信號的裝置更包括傳輸 路徑，設置於第-元件與第二元件之間，用以做為低電磁 干擾輸出信號的傳輸介質。 依照本發明的實施例所述傳輸低電磁干擾信號的裝 置，其中第一元件與第二元件為積體電路塊。 f發明另提出一種傳輪低電磁干擾信號的方法，用於 對第it件與-第二元件間執行一數位信號傳輸，其步 提供—編碼信號產生器。其另—步驟為編碼信號 產生β產t編碼信號，此編碼信號的週期是變動的。還包 _步驟帛元件將一源信號與編碼信號執行互斥或運 以產生—低電磁干擾輸出錢後輸出；以及第二元件 =低電,干擾輸出信號，且將其與編碼信號執行互斥或 ，以在第二元件處重新獲得源信號。 ^發明的_種傳輸低電磁干擾信號裝置和方法，將一 出^信ϊ執行互斥或運算來產生低電磁干擾輸 言並:开…或運算所產生的低電磁干擾輸出信號，其頻 二广节二if電磁干擾信號，並且通過將該低電磁干擾 it=次與編碼錢執行互斥或運算綠復源信號。 二Hr只需採用編碼信號產生器和互斥或電路，減 ^ 了原材料的消耗，降低生產成本。 200922130 V/ …1 ” —T57twfdoc/p 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂’下文特舉較佳實施例，並配合所關式，作詳細說 明如下。 【實施方式】The C a circuit is not suitable for pcbs with small daily money, and the use of the circuit of the wooden circuit will increase the cost of raw materials. SUMMARY OF THE INVENTION Magnetic interference signal method and high electromagnetic interference signal production The present invention provides a transmission low power to solve the problem of the south cost brought about by the prior art. A device for transmitting a low electromagnetic interference signal is proposed for a digit = number transmission. The device comprises: an encoded signal generator and a first component r. The coded signal generator is used to generate an encoded signal, and the period of this G coded chirp is crane. The first component includes a first-mutual reciprocal or circuit, and the sigma-mutual exclusion circuit has a first input terminal, a second input terminal, and an output terminal, the first input terminal is coupled to the coded signal generator, and the second input terminal is coupled Connected to the source signal for performing a mutual exclusion or operation on the source signal and the encoded signal to generate a low electromagnetic interference output signal. The second component includes a second mutual exclusion circuit. The second mutual exclusion circuit has a first input terminal, a second input terminal, and an output terminal. The first input end face is connected to the coder signal generator, and the second input terminal consumes Connected to the wheel-out of the mutexes or circuit, used to perform a mutually exclusive OR operation on the low electromagnetic dry 200922130 457twf.doc/p scrambled output signal and the encoded signal to recover the source signal. A device for transmitting a low electromagnetic interference signal according to an embodiment of the invention wherein the encoded signal is white noise. The apparatus for transmitting a low electromagnetic interference signal according to another embodiment of the present invention, wherein the apparatus for transmitting a low electromagnetic interference signal further includes a transmission path disposed between the first element and the second element for As a transmission medium for low electromagnetic interference output signals. A device for transmitting a low electromagnetic interference signal according to an embodiment of the invention, wherein the first component and the second component are integrated circuit blocks. The invention further proposes a method of transmitting a low electromagnetic interference signal for performing a digital signal transmission between the first component and the second component, the step of providing a coded signal generator. The other step is to generate a beta-generated t-coded signal for the encoded signal, the period of the encoded signal being varied. The packet _step 帛 element performs mutual exclusion or operation of a source signal and the encoded signal to generate - low electromagnetic interference output and output; and the second component = low power, interferes with the output signal, and performs mutual exclusion with the encoded signal Or to regain the source signal at the second component. The invention discloses a device and method for transmitting low electromagnetic interference signals, which will perform a mutual exclusion or operation to generate a low electromagnetic interference output and: a low electromagnetic interference output signal generated by the opening or operation, the frequency two The wide-area two if electromagnetic interference signal, and by performing the mutual repulsion or operation of the green complex source signal by the low electromagnetic interference it=time and the coded money. The second Hr only needs to use the coded signal generator and the mutual exclusion or circuit, which reduces the consumption of raw materials and reduces the production cost. The above and other objects, features and advantages of the present invention will become more apparent and understood <RTIgt; <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; the way】
C =明的特徵之-在於將-源信號和—編碼信號執 订互斥或運算來產生—低電磁干擾⑽信號，並且通過將 此低電磁干擾輸出錢再:续編碼錢執行互斥或運算來 恢復源^號’解決了 PCB設計中高電磁干擾信號的問題。 M _ Μ為本發財關#雜低€磁干擾信號 ^的結構示意圖。本發明的傳輪低電磁干擾信號的裝 一於數位#號傳輸，可設置於任何pcB電路上。如圖 所示’，輸低電磁干擾信號傳輸雜置細包括：編碼信 號產生器201、第—元件2〇3、第二元件205和傳輸路徑 21卜2中，編碼信號產生器2〇1用於產生一編碼信號，該 編碼信號為—數位信號，主要表現形式為“G1”信號。或 者^該編瑪信號可為—噪音源信號，該噪音源信號為一白 雜訊（white noise)。第一元件2〇3包括第一互斥或電路 2〇7 ’所述第一互斥或電路207具有第-輸入端、第二輸入 端以及輸出端’第—互斥或電路2〇7的第—輸入端搞接i 編1生5 201產生的編碼信號，第二輸入端減至源信 蚋述源信號例如為週期一定的輸入信號。第一互斥戒 私路^07的輸出端輸出經互斥或運算後產生的低電磁千擾 ，出仏旒。第二元件205包括第二互斥或電路209，所述 第二互斥或電路2〇9具有第一輸入端、第二輸入端以及輸 200922130 457twf.doc/p 出端’第一輸入端柄接至編碼信號產生器201 ’以輸入編 碼產生器201產生的編碼信號’第二輸入端耦接至第一互 斥或電路207的輸出端’以輸入第—互斥或電路207輸出 端輸出的低電磁干擾信號，輸出端輪出將低電磁干擾信號 和編碼信號互斥或運算後所回復的源信號。圖2中，第一 元件203和第二元件205是積體電路（ic)塊，但並非限 定本發明。如圖2所示，傳輸路徑211設置於第一元件203 〇 與第二元件之間，用以做為低電磁幹擾輸出信號的傳輸介 質。前述傳輸路徑211可以為硬接線或無線傳輸方式等。 前述第一互斥或電路207根據互斥或公式p = ab+ab f 其中，P為互斥或後的信號，A、B在本申請中為源信號和 編碼信號。由公式可得：上述源信號/編碼信號首先通過反 閘後與編碼信號/源信號輸入至及閘，產生一第一輸出信 號’同樣’上述編碼信號/源信號通過反閘後與源信號/編 碼信號輸入至及閘，產生一第二輸出信號，該第一輸出信 號和第二輸出信號通過或閘輸出互斥或後的信號，即低電 磁干擾信號。 具體為：將兩個輪入信號採用互斥或運算。參照表1， 其為互斥或運算的真值表。 200922130 457twf.doc/p ----T A ----—- B P 0 一 0 0 0 一 1 1 1 一 0 1 1 1 0 表1 採用互斥或運算“相同取0，不同取Γ的演算法， 〇 縣信號與編碼錢互斥或後產生低電磁干擾信號。所述 低電磁干擾信號在時域中週期大小不一，其能量一定。可 採用傅立”頻域·時域變換，根舰域和賴的轉換規 律’轉換成頻域後，其頻率點增多，頻譜展寬後其原來集 中於-頻率點的能量分散到各頻率點上，該信號的能量不 變，但在個頻率點上的能量降低。 一同樣方式，前述第二互斥或電路209根據互斥或公式 Ρ =仙+灿，其中，Ρ為互斥或後的信號，Λ、Β在本申請中 為低^磁干擾信號和編碼錢。由公式可得：上述低電磁 干擾k號/編碼信號首先通過反閘後與編碼信號/低電磁干 擾1號輸人至及閘’產生—第—輸出信號，同樣，上述編 碼^號/低電針擾錢通過反崎與低電磁預信號/編 碼信號輸入至及閘，產& __筮_ & , / 『二輪出信號通過或閘輸二：的 11 200922130 457twf.doc/pC = the characteristic of the - is to bind the - source signal and - the encoded signal to a mutually exclusive OR operation to generate - a low electromagnetic interference (10) signal, and to output the mutual exclusion or operation by outputting the low electromagnetic interference. To restore the source ^ number 'solves the problem of high electromagnetic interference signals in PCB design. M _ Μ is the structure diagram of the financial interference signal # hetero low magnetic interference signal ^. The transmission low electromagnetic interference signal of the present invention is installed in the digital ## transmission and can be set on any pcB circuit. As shown in the figure, the low-frequency electromagnetic interference signal transmission miscellaneous includes: the coded signal generator 201, the first element 2〇3, the second element 205, and the transmission path 21b, and the coded signal generator 2〇1 An encoded signal is generated, the encoded signal being a digital signal, and the main expression is a "G1" signal. Or the comma signal can be a noise source signal, which is a white noise. The first component 2〇3 comprises a first mutually exclusive OR circuit 2〇7' said first mutually exclusive OR circuit 207 having a first input, a second input and an output ''-mutually exclusive or circuit 2〇7 The first input terminal is connected to the coded signal generated by i, and the second input terminal is reduced to the source signal, and the source signal is, for example, an input signal with a constant period. The output of the first mutual exclusion or private channel ^07 outputs the low electromagnetic interference generated by mutual exclusion or operation. The second component 205 includes a second mutually exclusive OR circuit 209 having a first input, a second input, and a 200922130 457 twf.doc/p output 'first input handle Connected to the coded signal generator 201', the encoded signal generated by the input code generator 201, the second input is coupled to the output of the first mutually exclusive OR circuit 207 to input the output of the first mutex or circuit 207 output. Low electromagnetic interference signal, the output end rounds out the source signal that is recovered after the low electromagnetic interference signal and the encoded signal are mutually exclusive or operated. In Fig. 2, the first element 203 and the second element 205 are integrated circuit (ic) blocks, but are not intended to limit the invention. As shown in FIG. 2, the transmission path 211 is disposed between the first component 203 〇 and the second component for use as a transmission medium for a low electromagnetic interference output signal. The foregoing transmission path 211 may be a hardwired or wireless transmission method or the like. The aforementioned first mutually exclusive OR circuit 207 is based on a mutually exclusive OR formula p = ab + ab f where P is a mutually exclusive or a subsequent signal, and A, B are source signals and coded signals in this application. It can be obtained from the formula that the above source signal/encoded signal is first input to the AND gate after the reverse gate and the coded signal/source signal is input, and a first output signal is generated as 'same'. The above-mentioned coded signal/source signal passes through the reverse gate and the source signal/ The coded signal is input to the AND gate to generate a second output signal, and the first output signal and the second output signal pass through the OR gate to output a mutually exclusive or subsequent signal, that is, a low electromagnetic interference signal. Specifically, the two rounding signals are mutually exclusive or operated. Referring to Table 1, it is a truth table of mutually exclusive or arithmetic operations. 200922130 457twf.doc/p ----TA ------ BP 0 A 0 0 0 1 1 1 1 0 1 1 1 0 Table 1 uses the mutual exclusion or operation "the same takes 0, the calculation of different Γ The law, the Jixian signal and the code money are mutually exclusive or generate low electromagnetic interference signals. The low electromagnetic interference signals have different periods in the time domain, and their energy is constant. The Fourier frequency domain·time domain transform can be used. After the conversion law of the ship domain and Lai is converted into the frequency domain, its frequency points increase. After the spectrum is broadened, the energy originally concentrated at the -frequency point is dispersed to each frequency point. The energy of the signal is constant, but at the frequency point. The energy on it is reduced. In the same manner, the aforementioned second mutually exclusive OR circuit 209 is based on a mutual exclusion or formula Ρ = 仙+灿, where Ρ is a mutually exclusive or a subsequent signal, Λ, Β in this application is a low magnetic interference signal and coded money . It can be obtained from the formula: the above-mentioned low electromagnetic interference k/coded signal first passes through the reverse gate and the coded signal/low electromagnetic interference 1 is input to the gate and the generated-first output signal. Similarly, the above code ^/low power The needle disturbs the money through the anti-saki and low electromagnetic pre-signal/coded signal input to the gate, production & __筮_ &, / "two-round signal pass or gate two: 11 200922130 457twf.doc/p
209相同’此處不再贅述。I 甚広/ ^照表2 ’其為採用互斥或演算 法轉換、還原信號的演算法。 /不 人、开 ^ ^ , 表中，源信號取0011，編碼 “唬取0101，採用互斥或演I ] 物Ή &々'戽法，分別將0011與0101各 位互斥或’仟到低EMI信號A m ,Λ mm 7, 〇11()，再將該信號與編碼 仏唬0101互斥或後，得到信 &琥為0011，即為源信號。209 is the same 'will not be described here. I 広 / ^ According to Table 2 ′, which is an algorithm that converts and restores signals using mutual exclusion or arithmetic. / No, open ^ ^, in the table, the source signal is taken as 0011, the code "takes 0101, uses mutual exclusion or I" and the object & 々 '戽 method, respectively, 0011 and 0101 are mutually exclusive or '仟The low EMI signal A m , Λ mm 7, 〇 11 (), and then the signal is mutually exclusive with the code 仏唬 0101 or later, and the letter & a is 0011, which is the source signal.
編碼信號 恢復信號 0 0 0 1 —--- 1 — · 0 1 0 —- _ 1 0 ---— 1 1 表2 由上述裝置之敘述，可抵徨私 法’用於對第一元件盘第幹擾信號的方 此傳輸低電磁幹擾信號^方=執行—數位信號傳輸， 石馬信號產生器，接著^編碼^ 首先提供編 中此編碼信號的週期是變動生編碼信號，其 與編碼信號執行互斥或運管41件將源信號 後輪出，最後，第二亓I 產生低電磁干擾輸出信號 =編W執行:斥或運ί低擾:=，且將 該源信號。 任弟一凡件處重新獲得 進行轉換、回還原本發明低電磁干擾信號傳輸方法 採用數位表現形^ Γ高C_號301的波形 门电十為1，低電平為〇，得到： 12 200922130 457twf.doc/p 源仏號 301 為：0101010101010101， 同理可得編碼信號302為：001 in 10010001， 、將兩個信號執行互斥或運算後得到低EMI信號303 為oiunomooiooii。或者，可直接根據“高電平和低電 平產生南电平，尚電平和高電平產生一低電平，低電平 和低電平產生-低電平”的賴，直接得$低E信號 30^的波形’其結果和上述演算法得出的結果相同。隨後， 將=到的低EMI信號303與上述編碼信號3〇2執行互斥或 運算，該過程與上敍斥或過程相同，此處不再贅述，得 至Η罐信號305為醜晒醜_，其即為源信號。Coded signal recovery signal 0 0 0 1 —--- 1 — · 0 1 0 —- _ 1 0 --- — 1 1 Table 2 is described by the above device, can be used against the private method 'for the first component disk The interference signal is transmitted by the low electromagnetic interference signal ^ square = execution - digital signal transmission, the stone horse signal generator, and then the ^ coding ^ first provides the coded period of the coded signal is a variable generation coded signal, which is mutually executed with the coded signal Reject or transport 41 pieces to turn the source signal out, and finally, the second 亓I produces a low electromagnetic interference output signal = Debug W: 斥 or ί 低 :: =, and the source signal. Ren Diyi, a piece of parts, regains conversion, and returns to the present invention. The low electromagnetic interference signal transmission method of the present invention adopts a digital representation form. The high C_No. 301 has a waveform gate of 10 and a low level of 〇, which is obtained: 12 200922130 The 457 twf.doc/p source 301 301 is: 0101010101010101, and the encoded signal 302 is 001 in 10010001, and the two signals are mutually exclusive or operated to obtain a low EMI signal 303 as oiunomooiooii. Or, it can directly generate a low level according to "high level and low level, and generate a low level at a level and a high level, and generate a low level at a low level" to obtain a low E signal directly. The waveform of 30^' has the same result as the above algorithm. Subsequently, the low EMI signal 303 of = is performed with the above encoded signal 3 〇 2 to perform a mutually exclusive operation. The process is the same as the above snippet or process, and will not be described again here, and the Η can signal 305 is ugly ugly _ , which is the source signal.
綜上所述，在本發明之低電磁干擾信號傳輸裝置和方 法’通過將-源錢和—編碼錢互斥絲產生—低電磁 干擾輸出信號，互斥或產生低t磁干擾輸&信號，其頻譜 ，寬’形成低EM，並且通過賴健磁干擾輸出信號^ -人與編碼信號互斥或來恢復源信號，其過程簡單。並且只 需採用互核電路即可完成信號_換過程，減 = 二Γ產成本。並且，低電磁干擾輸出信號仍 互斥或電路恢復成與源信號一樣，增加了 PCB的性 能，同時也增加了 PCB的實用性。 雖然本發邮雜佳實施_露如上，然其並非助 :艮ίίΓ月丄任何熟習此技藝者’在不脫離本發明之制 ^耗圍内’虽可作些許之更動與潤飾，因此本發明之 範圍當視彳4社φ請專職目所狀者鱗。 … 【圖式簡單說明】 13 457twf.doc/p 200922130 圖1繪示為公知的一種低雜訊資料輸出驅動電路。 圖2繪示為本發明實施例的一種低電磁干擾信號傳輸 裝置的結構示意圖。 圖3繪示為採用本發明低電磁干擾信號傳輸方法進行 轉換、還原信號的波形圖。 【主要元件符號說明】 101 :資料比較電路 103 :資料反轉判斷電路 105 :資料反轉信號產生電路 107 :資料反轉電路 200 :傳輸低電磁干擾信號的裝置 201 :編碼信號產生器 203 ··第一元件 205 :第一互斥或電路 207 :第二元件 209 :第二互斥或電路 211 :傳輸路徑 301 :源信號 302 :編碼信號 303 :低EMI信號 305 :恢復信號 14In summary, the low electromagnetic interference signal transmission apparatus and method of the present invention generates a low electromagnetic interference output signal by using - source money and - code money mutually repulsion, mutually exclusive or generating low t magnetic interference transmission & Its spectrum, wide 'forms low EM, and the source signal is mutually exclusive or repelled by Lai Jian magnetic interference to restore the source signal, and the process is simple. And only need to use the mutual nuclear circuit to complete the signal_changing process, minus = two production costs. Moreover, the low EMI output signals are still mutually exclusive or the circuit is restored to the same as the source signal, which increases the performance of the PCB and increases the practicality of the PCB. Although the implementation of this postal essay is as above, it is not helpful: 艮ίίΓ月丄 Anyone who is familiar with this skill can make some changes and refinements without departing from the manufacturing process of the present invention, so the present invention It is the size of the person in the hiring of the hiring. [Illustration of the drawing] 13 457 twf.doc/p 200922130 Fig. 1 shows a known low noise data output driving circuit. 2 is a schematic structural diagram of a low electromagnetic interference signal transmission apparatus according to an embodiment of the present invention. 3 is a waveform diagram of a conversion and reduction signal using the low electromagnetic interference signal transmission method of the present invention. [Description of main component symbols] 101: data comparison circuit 103: data inversion determination circuit 105: data inversion signal generation circuit 107: data inversion circuit 200: means 201 for transmitting low electromagnetic interference signal: coded signal generator 203 ·· First element 205: first mutex OR circuit 207: second element 209: second mutex OR circuit 211: transmission path 301: source signal 302: coded signal 303: low EMI signal 305: recovery signal 14