A7 B7 五、發明説明（ 其中含多個傳送器，典型地 及傳回通常包括識別資料之 一部份之接收器。這些信號 電磁能，例如，射頻（R F 光束，及聲音，例如超音波 發射RF能量傳送，或者由 使由此傳送器天線反射或背 量產生變化。 之傳送產生重疊或衝突，此 法辨別此兩個別傳送。因此 發明背景 本發明係有關於辨識多 器於多個時段期間傳送資料 包括多個傳送器及一接收器 本發明亦有關於用κ改良於 別是 EP585 ，1. 3 2 A 置。 大家已知之辨識糸統為 轉發機被一詢問信號啟動， 答信號至典型上構成詢問器 能K很多種方式傳送，包括 ，紅外線（I R )，及凝聚 例如，此可藉由傳送器實際 送器天線反射係數之調變， 散射之詢問器信號中R F能 一般而言，若兩傳送器 送將漏失，因為此接收器無 個傳送器之方法，每一個傳送 至一接收器。本發明亦有關於 之辨識糸統，及傳送器本身。 EP494， 114A，及持 中所發表辨識糸統之方法與裝 為 應 可 傳 傳 請 先 閲 讀 背 面 之 注 章 裝 頁 訂 經濟部中央標準局員工消f合作社印製 於 B 機統收 生 G 發系此 產。轉識使 送收別辨此 傳接 各此因 其所此於 ， 到器中。生 直器其料產 , 問，資器 送詢統送盪 傳此糸重振 覆被識再體 重地辨式晶 器功一方一 送成 表碼由 傳此發機被 個因 8 隨號 一 及 ο 擬信。 每 ，8 虛序貴 對間 ，Μ時昂 需時 6 劃之更 必 ”1 規機造 統閒 1 式發製 系空，程轉機 此” 2 被此發 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） A7 B7_ 五、發明説明（> ) £卩467，036八描述另一辨識糸統，其於收發 機資料傳送間使用一虛擬隨機碼延遲。於此例中’ 一線性 迴歸程序產生器被Μ轉發機識別位址作產生源’ Μ使虛擬 隨機碼延遲儘可能以隨機方式產生。 本發明之目的為製成另一糸統，Κ增強此類糸統中多 重傳送之檢測。 ΕΡ494， 114Α及ΕΡ585， 132Α所提 出辨識糸統，其中轉發機可Μ相同資料程式規劃。本發明 之目的為製成一改良糸統，Κ於轉發機傳送間產生虛擬隨 機碼延遲。 發明概要 依本發明之特色，其提出辨識多個傳送器之一種方法 ，每一個傳送器於多個時段期間傳送資料至一接收器，此 方法包括以多個時段期間啟動每一個傳送器，對每一個傳 送器於連續傳送間改變傳送時段之間隔，此時段為以隨機 方式或虛擬隨機碼計算，及其與结合於傳送器中之本地時 序搆件其工作頻率有關。 經濟部中央標準局員工消費合作社印製 --------'.裝— ..,··· (請先閱讀背面之注意事項再填寫本頁)A7 B7 5. Description of the invention (which contains multiple transmitters, typically and receivers that usually include part of the identification data. These signals are electromagnetic energy, such as radio frequency (RF beams, and sound, such as ultrasonic emissions) RF energy transmission, or change caused by the reflection or backlash of the antenna of the transmitter. The transmissions overlap or conflict. This method distinguishes between the two transmissions. Therefore, the present invention relates to identifying multiple devices in multiple time periods. The transmission data during the period includes multiple transmitters and a receiver. The present invention also relates to the use of κ to improve EP585, 1. 3 2 A. The known identification system is that the transponder is activated by an interrogation signal, and the answer signal is to Typically, the interrogator can be transmitted in many ways, including infrared (IR), and condensation. For example, this can be adjusted by the reflection coefficient of the actual transmitter antenna of the transmitter. The RF energy in the scattered interrogator signal is generally If two transmitters send, it will be missed, because this receiver does not have a transmitter method, and each one transmits to a receiver. The present invention also has the related identification. The system and the transmitter itself. EP494, 114A, and the method and method of identifying the system published in the holding should be circulated. Please read the note on the back. Binding page. The machine B is delivered by G. The hair is made by this product. The transfer makes the receiver distinguish between the transmission and the transmission because of where it is. It is in the device. This rebirth was recognizable and recognizable, and one of the crystals was given a table code by one. It was reported that the machine was given a number of 8 and a ο. The letter was 8 each. It takes more than 6 strokes to make it "1 standard machine system, leisure system, 1 type system, empty, and turn around." 2 This paper is issued in accordance with the Chinese National Standard (CNS) A4 specifications (210X297 mm) A7 B7_ V. DESCRIPTION OF THE INVENTION (>) £ 467,036 describes another identification system that uses a virtual random code delay between the transceiver data transmission. In this example, a linear regression program generator is identified by the M repeater. The address generation source 'M makes the virtual random code delay as random as possible. The purpose of the present invention is to make another system to enhance the detection of multiple transmissions in such systems. The identification systems proposed by EP494, 114A and EP585, 132A, in which the transponder can be planned with the same data program. The purpose is to make an improved system that generates a virtual random code delay between transponder transmissions. SUMMARY OF THE INVENTION According to the features of the present invention, it proposes a method for identifying multiple transmitters, each transmitting during multiple periods. Data to a receiver. This method includes activating each transmitter in multiple periods, and changing the interval of the transmission period for each transmitter between successive transmissions. This period is calculated in a random manner or a virtual random code. The local timing component incorporated in the transmitter is related to its operating frequency. Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs -------- '. 装 — .., ... (Please read the precautions on the back before filling this page)
Is. 此多個時段期間最好為於最大間隔與最小間隔間變化 ，此最.大間隔與本地時序構件之預設週期數有關。 於上述方法中，於傳送間之時段間隔可被Μ如下方式 計算：週期性產生虛擬隨機數碼，將虛擬隨機數碼與本地 時序構件時脈所驅動之計數器其輸出作比較，及僅當此虛 擬隨機數碼與此'計數器之輸出相等時啟動此傳送器。 -5 - 本紙張尺度適用中國國家標準（CNS ) A4规格（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（γ ) 依本發明之第二個特色，其提出包含多個傳送器之辨 識系統，每一個傳送器用Μ於所提供多個時段期間傳送， 及至少一個接收器用Μ接收傳送器之傳送資料，每一個傳 送器包括用以產生傳送之構件，用Μ於連續傳送間計算多 個時段間隔之構件*及用以隨機或虛擬隨機碼之時段啟動 傳送器之構件，此傳送時段為與本地時序構件之工作頻率 有關。 依本發明之第三個特色，其提出一可Κ於多個時段期 間傳送之傳送器，包括用以產生傳送之搆件，用Μ於連續 傳送間計算多個時段間隔之構件，及用Μ隨機或虛擬隨機 碼之時段啟動傳送器之構件，此傳送時段為與本地時序構 件之工作頻率有關。 此本地時序構件較佳為此傳送器之振盪器，具有未固 定之時脈頻率，其可產生極大之偏移度，使得不同傳送器 之振璗器可工作於不同頻率。 此啟動搆件可包括虛擬隨機數碼產生器設計，用W產 生虛擬隨機數碼，計數器構件設計，用Μ依此振盪器頻率 之速率計數，及比較器構件設計，以將虛擬隨機數碼產生 器之輸出與計數器構件輸出作比較，及僅當其兩者之輸出 相等時啟動此'傳送器。 此傳送器可為射頻辨識（RD/ID)轉發機。於具 體實施£?49 4，114义及£卩585，132晃中 所述之”反衝突通信協定”之轉發機，每一個轉發機其識 -6 · 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） --------:裝-1 (請先閱讀背面之注意事項再填寫本頁) i訂— · · 經濟部中央橾準局員工消費合作社印製 Α7 Β7 五、發明説明（f ) 別碼不需不同；此轉發機可為相同，Μ允許其大量，便宜 地製造。本發明之優點為當反衝突通信協定被使用，可剋 服衝突獲得較佳改善。然而，若獨特產生源被使用於虛擬 隨機數碼產生器中，可更快速完成讀取多個轉發機。 本發明可擴展至操作一傳送器及積體電路之方法，其 中本發明之傳送器可使用於原來之建構。 . 圖式簡述 圖式1為依本發明之射頻率轉發機之方塊《圖； 圖式2為於圖式1中傳送控制器之方塊概圖； 圖式3為以一概圖說明兩轉發機或標籤（丁3尽）傳 送之時序； 一實施例描述 本發明之目的為提出一種方法與系統，其可提昇多個 傳送資料至接收器之傳送器（典型為轉發機）其辨識機率 。雖然下列實施例為Μ被動射頻轉發機描述說明，其由_ 問器接收之詢問器信號啟動及饋電。本發明可應用於其他 系統。例如，多個自饋電傳送器必需由接收器辨識之系統 ，或多個傳送器使用隨機延遲”退回及再試”演繹法發身寸 之系統。 本發明提出其需求規格為此傳送器或轉發機以不同胃 間，Κ隨機或虛擬隨機碼時段，而非固定時段傳送。此夕卜 ，由每一個轉發機連續傳送之隨機度被提高，藉由每~個 轉發饑之本地時序搆件（典型為振盪器）所產生之隨機$ -7- 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） ----------.· :裝-- (請先閱讀背面之注意事項再填寫本頁)Is. It is better to change between the maximum interval and the minimum interval during these multiple periods. The maximum interval is related to the preset number of cycles of the local timing component. In the above method, the time interval between transmissions can be calculated as follows: Periodically generate a virtual random number, compare the virtual random number with the output of a counter driven by the clock of the local timing component, and only if the virtual random number When the number is equal to the output of this counter, the transmitter is activated. -5-This paper size applies Chinese National Standard (CNS) A4 (210X297 mm). Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs. A7 B7. 5. Description of the invention (γ) According to the second feature of this invention, It proposes an identification system including multiple transmitters, each transmitter using M to transmit during a plurality of time periods provided, and at least one receiver using M to receive transmission data from the transmitter, each transmitter including a means for generating a transmission, A component that uses M to calculate multiple time intervals between successive transmissions, and a component that starts the transmitter for a random or virtual random code period. This transmission period is related to the operating frequency of the local timing component. According to a third feature of the present invention, it proposes a transmitter that can be transmitted during multiple time periods, including a means for generating transmissions, a means for calculating multiple time intervals between successive transmissions, and The period of the random or virtual random code starts the component of the transmitter. This transmission period is related to the working frequency of the local timing component. The local timing component is preferably an oscillator of the transmitter, which has an unfixed clock frequency, which can produce a great degree of offset, so that the oscillators of different transmitters can work at different frequencies. This starting component may include a virtual random number generator design, use W to generate a virtual random number, a counter component design, use M to count at the rate of this oscillator frequency, and a comparator component design to output the virtual random number generator Compare with the counter component output and activate this' transmitter only when the output of both of them is equal. This transmitter can be a radio frequency identification (RD / ID) repeater. For the implementation of the "anti-collision communication agreement" transponders described in 49,114, and 卩 585,132, each transponder knows -6 · This paper standard applies Chinese National Standard (CNS) A4 specification (210X297 mm) --------: installed -1 (Please read the precautions on the back before filling out this page) I order — · · Printed by the Central Consumers Bureau of the Ministry of Economic Affairs Consumer Cooperatives Α7 Β7 5. Description of the invention (f) The different codes do not need to be different; the transponders can be the same, and M allows them to be manufactured in large quantities and cheaply. An advantage of the present invention is that when anti-collision communication protocols are used, conflicts can be better improved. However, if the unique generation source is used in a virtual random number generator, reading multiple transponders can be done more quickly. The present invention can be extended to a method of operating a transmitter and an integrated circuit, in which the transmitter of the present invention can be used for the original construction. Brief Description of the Drawings Figure 1 is a block diagram of a radio frequency repeater according to the present invention; Figure 2 is a block schematic diagram of a transmission controller in Figure 1; Figure 3 is a schematic diagram illustrating two repeaters Or the timing of transmission of tags or tags (D3); An embodiment describes the purpose of the present invention is to propose a method and system that can improve the identification probability of multiple transmitters (typically repeaters) that transmit data to the receiver. Although the following embodiment is a description of the M passive radio frequency transponder, it is activated and fed by the interrogator signal received by the interrogator. The invention can be applied to other systems. For example, a system in which multiple self-feeding transmitters must be identified by the receiver, or a system in which multiple transmitters use a random delay to "return and retry" deduction. The present invention proposes that its requirement specification is that the transmitter or transponder transmits in different stomach, K random or virtual random code periods, rather than a fixed period. In addition, the randomness of continuous transmission by each transponder is increased, and the randomness generated by each ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ (CNS) Α4 specification (210 × 297 mm) ----------. ·: Equipment-(Please read the precautions on the back before filling this page)
-J— sn IT 訂 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（<) 虛擬隨機時序。此轉發機可為EP494 ’ 1 14A及E P585，1 32A中所逑之型式，這些文件全部之内容 於此被结合參照。於標稱栢同轉發機之振盪器其工作頻率 之極大偏差度提昇其傳送之隨機性。 現參照圖式1 ，~被動射頻轉發機被Μ概圔說明。此 轉發機具有天線1 0，其由R F詢問器信號接收由詢問器 所傳送之能量，及部份能量被分送至對一電容器C充電， 其作為對此轉發機之電源供給。此轉發機具有安裝於電路 板上之振盪器1 2，其操作於此相同標稱頻率，如同其他 標稱相同轉發機。然而由於低價格積體電路轉發機製造誤 差，此振盪器1 2之輸出頻率典型地具有一製造誤差2 5 %。此輸出頻率受電容C供給電壓V D D之影響，及亦由 於此詢問器遠近、天線方向及其他因素，而影響所接收詢 問器信號能量強度。因此每一標籤其具有之振盪器，其產 生極大之不確定度，同時依製造誤差與供給電壓而定，而 供給電壓其本身依所接收R F強度而定。每一個振盪器之 頻率因此為不確定的，而未固定的，直到此訊息格式工作 後方固定。 此粗黑框線1 ，表示此轉發機之元件，其可整合於一 單晶體積體電路中。 此轉發機包括一非揮發性記憶體元件1 4，典型為Ε E P R Ο Μ，其儲存轉發機之識別碼與结構資訊，其對此 轉發機之不同編碼資科傳送頻率（位元速率），最大延遲 -8- 本紙張尺度適用中國國家標準（CNS ) Α4規格（2丨0Χ297公釐〉 -----^----裝-- (請先閣讀背面之注意事項再填寫本頁) ,ιτ 經濟部中央標準局負工消費合作社印製 A7 B7 五、發明説明（G) 時間（M m a X · T )，及用於虛擬隨機碼時間延遲電路 產生源作程式規劃°此轉+發.機亦包括一上逑實施例之·輔*出 軀動器1 6，將此負載轉換加至夭線1 0，因此調變其反 射性，但其亦可為—主動式傳送器。一控制邏輯電路1 8 控制輸出軀動器1 6之操作’及由記憶體元件1 4讀取資 料> Μ對一傳送控制器電路2 0之信號回應’此傳送控制 器電路2 0將於圖式2中作更詳细之描述說明。一電源重 置電路2 2為當一電壓加至此電路時，將此控制邏輯電路 1 8初值化為預設之啟動狀態。 於圖式2中，此傳送控制器電路2 0被Μ更詳细描述 說明。此電路包括一程序器24，其由振盪器1 2接收時 脈信號1 2及由其產生一可能為較低之頻率，Μ產生一” 記憶體讀取”信號，其與時脈信號被共同加至控制邏輯電 路1 8。此”記憶體讀取”倌號為具有一固定頻率與週期 Τ之連續脈波序列。每一脈波將使控制邏輯電路1 8經由 一”讀出指令”信號，命令此記憶體元件1 4依序輸出儲 存其中之識別碼至此控制邏輯電路中。然而除非傳送控制 器2 0亦同時輸出一”傳送啟動”信號及另一個”記憶體 讀取”脈波至控制邏輯電路1 8，此識別碼無法由控制邏 輯電路通過輸出軀動器1 6。此僅於虛擬隨機碼時段發生 ，如下所述。 此程序器電路2 4之輸出亦被加至碼循環計數器2 6 ，其因此於每一次由記憶體元件1 4之識別碼輸出程序啟 -9- 本纸張尺度適用中國國家標準（CNS·) Α4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) 、τ 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（7) 動時被加1 ，此碼循環計數器2 6將永不被重置’其僅計 數至最大計數值回復至零後，再重新計數。一虛擬隨機數 碼產生器電路28—次再一次產生虛擬隨機數碼，及此虛 擬隨機數碼產生器電路2 8之輸出與碼循環計數器2 6之 目前輸出被送至比較器3 0。比較器3 0將兩數目比較後 ，當相等時產生一輸出，此輸出信號為上述之”傳送啟動 ”信號。此”傳送啟動”亦觸發此虛擬隨機數碼產生器電 路2 8，K產生一新虛擬隨機數碼。當此”傳送啟動”變 為高電位，於此同時”記憶體讀取”信號亦變為高電位.， 控制邏輯電路1 8由記憶體元件1 4已讀取之識別碼被輸 出至輸出軀動器1 6及作傳送。 現參照圖式3，_兩轉發機或標籤.，T a g 1與T a g 2之傳送被作比較。T a g 1具有之振盪器工作稍微較T a g 2快。兩者皆有相同Nma X程式規劃至其中，但詳 细時間如圖中所示，對一 N 1 . T期間，T a g 1將維持 於被動（非傳送）模式，其中N 1隨每一個傳送/空閒週 期而改變，(0<=N<Nmax)，而Tag2對N2 • T維持於被動模式。注意Tag 1之T與Tas2之T 不同，並具有如上述頻率之栢同變動。此外，對任一標籤 之ΤΙ ，T2， . · TN並不完全相同，由於特定標籤之 供給電壓隨時間變化。因此於標簸間有一些頻率差異，及 於不同時間具有相同標籤。與若此標籤時脈信號由此R F 載波頻率產生（洌如，以頻率分割）.相較，此本發明所使 -10- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) 裝. 、1T· 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（I ) 用之反衝突糸統可獲得更佳剋制改菩。例如對於一些其他 RF辨識系統，而具體實施並不昂貴。 此N m a X值由比較器3 0所比較之位元數決定。例 如於8位元之比較，Nmax = 255。Nmax被於此 轉發機製造或程式規劃時建構。其已由實驗上確定對特定 數目Nmax，於相同RF詢問器區中可同時讀取轉發璣 或標籤之數目，其有一實際限制。若於相同詢問器區中， 此轉發機之數目與所有轉發機成功地辨識相比較，由於收 發機傳送間之衝突，此時間約與轉發機之數目成正比，直 到轉發機之數目約為Nma x/2為止。若此轉發機之數 目被增加超過此點，用以辨識標籤所需時間朝向完全無收 發機被辨識之情況快速增加，及所有傳送導致產生衝突。 因為上逑轉發機設計之不同優點特色，雖然此轉發機 被以相同Nm a X值程式規劃，及其基本上為相同，由每 一個轉發機資料傳送可獲得極高之隨機度。此構件由一個 轉發機接至一個之唯一所需作調蝥值為此轉發機之辨識碼 〇 對那些熟悉此項技術者，其將認知本發明可於多個不 同系統中實行。於糸統中本地時序構件變動非本身原有之 特色，此種變化可包含於系統設計中。例如，使用多個不 同晶體振盪器電路，其可κ不同速度工作。然規劃唯一頻 率用於一組傳送器為並非必要的，每一傳送器可製成具有 不同振盪器電路。此外，傳送器可動態地改變本地時序構 -11- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） --------裝-- (請先鬩讀背面之注意事項再填寫本頁) 訂1. -1¾. 五、發明説明（-J— sn IT Order Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (<) Virtual random timing. This transponder can be of the type described in EP494 '1 14A and EP585, 1 32A, the entire contents of these documents are incorporated herein by reference. The large deviation of the operating frequency between the nominal Bai and the transponder's oscillator improves the randomness of its transmission. Referring now to Figure 1, the ~ passive RF transponder is briefly described by M. This transponder has an antenna 10, which receives the energy transmitted by the interrogator by the RF interrogator signal, and part of the energy is distributed to charge a capacitor C, which is used as a power supply for the transponder. This transponder has an oscillator 1 2 mounted on the circuit board, which operates at the same nominal frequency as other transponders of the same nominal value. However, due to the manufacturing error of the low-price integrated circuit repeater, the output frequency of this oscillator 12 typically has a manufacturing error of 25%. This output frequency is affected by the supply voltage V D D of the capacitor C, and also due to the distance of the interrogator, the antenna direction and other factors, which affect the energy intensity of the interrogator signal received. Therefore, each tag has an oscillator that generates great uncertainty, and depends on the manufacturing error and the supply voltage. The supply voltage itself depends on the strength of the RF received. The frequency of each oscillator is therefore indeterminate and not fixed until the message format is fixed. The thick black frame line 1 indicates the components of the transponder, which can be integrated into a single crystal volume circuit. This transponder includes a non-volatile memory element 14, typically Ε EPR Ο Μ, which stores the identification code and structural information of the transponder, and its different encoding resources and transmission frequency (bit rate) for this transponder. Maximum delay -8- This paper size applies to Chinese National Standard (CNS) Α4 specification (2 丨 0 × 297 mm> ----- ^ ---- install-(Please read the precautions on the back before filling this page ), ιτ Printed by A7 B7, Central Consumers Bureau of the Ministry of Economic Affairs, Consumer Cooperatives V. Description of the invention (G) Time (M ma X · T), and the programming of the source of the virtual random code time delay circuit for programming The engine also includes an auxiliary body-out actuator 16 of the above embodiment. This load is converted to the yam-line 10, so its reflectivity is adjusted, but it can also be an active transmitter. A control logic circuit 1 8 controls the operation of the output actuator 16 and reads the data from the memory element 14 > The signal response to a transmission controller circuit 2 0 'This transmission controller circuit 2 0 will A more detailed description is given in Figure 2. A power reset circuit 22 is used when a voltage is applied to the circuit. At this time, the initial value of the control logic circuit 18 is set to a preset start state. In Figure 2, the transmission controller circuit 20 is described in more detail by M. This circuit includes a programmer 24, which is The oscillator 12 receives the clock signal 12 and generates a possibly lower frequency from it. M generates a "memory read" signal, which is added to the control logic circuit 18 together with the clock signal. This " The “Memory Read” number is a continuous pulse wave sequence with a fixed frequency and period T. Each pulse wave will cause the control logic circuit 18 to issue a “read instruction” signal to order the memory elements 14 in order The stored identification code is output to this control logic circuit. However, unless the transmission controller 20 also outputs a "transmission start" signal and another "memory read" pulse to the control logic circuit 18, this identification code cannot be The control logic circuit passes the output actuator 1 6. This occurs only during the virtual random code period, as described below. The output of this programmer circuit 2 4 is also added to the code loop counter 2 6, so it is stored in memory each time. Body element 1 of 4 Code output procedure Kai-9- This paper size applies to Chinese National Standard (CNS ·) Α4 size (210X297 mm) (Please read the precautions on the back before filling out this page), τ Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Printed A7 B7 V. Description of the invention (7) 1 is added when the code is running. This code cycle counter 2 6 will never be reset. It only counts to the maximum count value and returns to zero, and then counts again. A virtual random number The generator circuit 28 generates the virtual random number once again, and the output of the virtual random number generator circuit 28 and the current output of the code cycle counter 26 are sent to the comparator 30. Comparator 30 compares the two numbers and generates an output when they are equal. This output signal is the above-mentioned "transmission start" signal. This "transmission start" also triggers the virtual random number generator circuit 28, and K generates a new virtual random number. When the "transmission start" becomes high, at the same time, the "memory read" signal also becomes high. At the same time, the control logic circuit 18 outputs the identification code read by the memory element 14 to the output body. Actuator 16 and for transmission. Referring now to Figure 3, the transmission of two transponders or tags, T ag 1 and T ag 2 is compared. The oscillator with T a g 1 operates slightly faster than T a g 2. Both have the same Nma X program planned into them, but the detailed time is shown in the figure. For a N 1. T period, T ag 1 will remain in passive (non-transport) mode, where N 1 is transmitted with each / Idle period, (0 < = N < Nmax), while Tag2 vs. N2 • T remains in passive mode. Note that the T of Tag 1 is different from the T of Tas2 and has the same variation as the frequency of the above. In addition, for any tag, T1, T2,. · TN are not exactly the same, because the supply voltage of a particular tag changes over time. Therefore, there are some frequency differences between the standard pans and the same labels at different times. Compared with if the label clock signal is generated by the RF carrier frequency (for example, by frequency division). Compared with this, the present invention makes -10- this paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page). 1T. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. A7 B7. 5. Description of the invention (I) The anti-conflict system used can be better restrained. . For example, some other RF identification systems are not expensive to implement. The value of N m a X is determined by the number of bits compared by the comparator 30. For example, in an 8-bit comparison, Nmax = 255. Nmax is constructed during this transponder manufacturing or programming. It has been experimentally determined that for a specific number Nmax, the number of retransmission chirps or tags can be read simultaneously in the same RF interrogator area, which has a practical limit. If in the same interrogator area, the number of this transponder is compared with the successful identification of all transponders, due to the conflict between the transmissions of the transceivers, this time is approximately proportional to the number of transponders, until the number of transponders is about Nma x / 2. If the number of transponders is increased beyond this point, the time required to identify the tag will increase rapidly towards a situation where no transponders are identified, and all transmissions will cause conflicts. Because of the different advantages and characteristics of the design of the upper transponder, although this transponder is planned with the same Nm a X value program, and it is basically the same, a very high degree of randomness can be obtained by each transponder data transmission. The only required adjustment of this component from one transponder to one is the identification code of the transponder. Those skilled in the art will recognize that the present invention can be implemented in many different systems. Changes in the local timing components in the system are not their original characteristics. Such changes can be included in the system design. For example, using multiple different crystal oscillator circuits that can operate at different speeds. Although it is not necessary to plan for a unique frequency for a group of transmitters, each transmitter can be made with a different oscillator circuit. In addition, the transmitter can dynamically change the local time sequence structure. 11- This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -------- install-(Please read the note on the back first Please fill in this page for matters) Order 1. -1¾. V. Description of Invention (
Q A7 B7 件之頻率，例如藉於兩振盪器電路間之切換。依此相同精 溫 如 例 定 而 素 因 〇 部化 外變 依關 率相 頻生 之 產 中率 其頻 件對 構將 序等 時光 地射 本入 神度 m I nn i HI m n^i In— nn ttn —f^i l*......... Hal —HI— n .^m 兔 ：¾ 1 (請先閔讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）Q A7 B7 frequency, for example, by switching between two oscillator circuits. Based on this same fine temperature, as is the case, the external production depends on the rate of production, and the frequency of the production rate is frequent. The frequency of the component pairs will be shot in a time-honored manner. I I nn i HI mn ^ i In— nn ttn —f ^ il * ......... Hal —HI— n. ^ m Rabbit: ¾ 1 (Please read the notes on the back before filling out this page) Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The paper size of the paper is applicable to China National Standard (CNS) A4 (210X297 mm)