五、發明説明（1 ) A7 B7 經濟部中央標準局員工消f合作社印製 技術範圍 本發明奴係關於用户線介面電路，以及更特定地關於 配合用户線的長度而調整專用計數訊號的才辰幅，藉由用户 %爹射到用户站。 發明背景 一 ' 在某些應用中，-個中心站發送專用計數（PRM)脈衝到 -個用户& ’這些脈衝被登記在用户站中且作爲通話費用 的評量。 · 專用計數脈衝的頻率在語f頻帶之上，—般的專用計數 頻率爲_12到/丄§纪类。/專用計數訊號的振幅從中心站給定 一値。振幅依賴正在討論中-的市場，且在歐洲變動著，在 英格蘭有㈣伏均方拫値變動，*義大利（2 5伏均方根 値變動。 ’ 在用户站，專用計數檢波器對專用計數頻率有一個約2〇〇 歐姆的阻抗。在短用户線的應用上，只有小量電壓降從用 户線中獲得。 藉由用户線介面電'咚（SLIC)發送專用計數訊號到用户站 是典型的作法。 來自中心站的專用計數脈衝，其振幅—般按如此設定： 對於使用最長的用户線_，從用户站的專用計數檢波器中獲 得適當的振幅。 若用户線短，意味著在用户姑的專用計數振幅將甚高弘 專用計數檢波器所預定的。結果，專用計數檢波器將收到 一個高於其使用大小的訊號振幅。造成用户站的專用計數 -4- 本纸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) •^7.V. Description of the invention (1) A7 B7 Employees of the Central Standards Bureau of the Ministry of Economic Affairs and the technical scope of printed cooperatives The present invention is related to the subscriber line interface circuit, and more specifically to adjust the dedicated counting signal to match the length of the subscriber line Frame, shot by the user% dad to the user station. BACKGROUND OF THE INVENTION-In some applications, a central station sends dedicated count (PRM) pulses to a user ' ' These pulses are registered in the user station as a measure of the cost of the call. · The frequency of the dedicated counting pulse is above the f-band, the general dedicated counting frequency is _12 to / 丄 §. The amplitude of the / dedicated count signal is given from the center station. Amplitude dependence is a market under discussion and is changing in Europe. There is a volt mean square change in England. * Italy (25 volt mean square change). At the subscriber station, a dedicated counter detector pair is dedicated. The counting frequency has an impedance of about 200 ohms. In short subscriber line applications, only a small amount of voltage drop is obtained from the subscriber line. The dedicated counting signal is sent to the subscriber station through the subscriber line interface (SLIC). Typical method. The amplitude of the dedicated counting pulse from the central station is generally set as follows: For the longest subscriber line, get the proper amplitude from the dedicated counting detector of the subscriber station. If the subscriber line is short, it means that the The user's dedicated counting amplitude will be very high as predetermined by Gao Hong's dedicated counting detector. As a result, the dedicated counting detector will receive a signal amplitude higher than its use size. As a result, the dedicated counting of the subscriber station will result China National Standard (CNS) A4 specification (.210X297 mm) (Please read the precautions on the back before filling this page) • ^ 7.
、1T 線- B7 五、發明説明（2 檢波無法進行。 US 5,452 345 蔣雨 /_ ^ 、 揭路—個可程式钟〜數訊號彦峰哭 a 疋的用户.線，里钟番_ a ☆ 皮^生’ ’措由特 具#數訊號電壓可被程式化 叫赞 用户線上的專用气盔户通备位階。在 ，受到感應與控制。 戡的作法 發明概述 · 本發明之目的在於提供一種用 法，配合用户缚的4A •—〜一u!的配置及方 根…/ 自動調整專用計數訊號的振幅； =本發明，按離散恤用來調整專用 幅至直流線電壓。 - w振 /此’本發明之用户線介面電路能被用來發射專用計數 訊琥而不須要知道。用户線的實際長度。 圖式簡述 考下面的附圖，本發明將有更詳細的敘述，圖中所示 爲本發明所配置的具體實施例之流程圖。 較佳之具體實施例 ，圖示爲用户線介面'電路中的嫜用一計數訊號輪入電路。用 户線介面電路剩餘部分則未顯示出。 專用計數訊號產生器提供對用户站（未示出）產生專用計 數訊號。專用計數訊號輸入用户線，包括一,尖端線2和 一 ¢1 %形線7，藉由專用計數訊號輸出端4到用户線介面 電路，使用方式未示於圖上。〜 根據本發明，來自^專用計數訊號之振幅，配 合用户線2、3而—氣整。― -5 本紙張狀相巾ΐϋ票準（CNS ) Μ規格（210χΊ^^Υ t 赛, Line 1T-B7 V. Description of the invention (2 Geophone cannot be performed. US 5,452 345 Jiang Yu / _ ^, Revealing the road-a programmable clock ~ number of users Yan Feng cry a 疋. Line, Li Zhongfan_ a ☆皮 ^ 生 '' 策 由 特 ## The signal voltage can be stylized to praise the dedicated air helmet user level on the user line. Now, it is subject to induction and control. 戡 的 方法 Invention Summary · The purpose of the present invention is to provide a Usage, in accordance with the user's 4A • ~~ u configuration and square root ... / Automatically adjust the amplitude of the dedicated counting signal; = The present invention is used to adjust the dedicated amplitude to the DC line voltage according to the discrete shirt.-W 振 / 此'The subscriber line interface circuit of the present invention can be used to transmit dedicated counting signals without having to know. The actual length of the subscriber line. Schematic description Consider the following drawings, the present invention will be described in more detail. A flowchart of a specific embodiment of the present invention is shown. A preferred embodiment is a circuit of a counting signal in a subscriber line interface circuit. The rest of the subscriber line interface circuit is not shown. Dedicated count The signal generator provides a dedicated counting signal to the subscriber station (not shown). The dedicated counting signal is input to the subscriber line, including one, the tip 2 and the ¢ 1% shaped line 7, and the dedicated counting signal output terminal 4 to the subscriber line. The interface circuit is not shown in the drawing. ~ According to the present invention, the amplitude of the special counting signal from ^ is matched with the subscriber lines 2, 3-Integrating.--5 paper-like photo towel (CNS) Μ Specifications (210χΊ ^^ Υ t match
I 頁 經濟部中央標準局員工消贽合作社印製 A7 B7 五 、發明説明（ 爲了完成這項工作，輸入電路包括—個線壓感應電路5 ，用來感應用户線介面電路的直流線電壓，即 環形線3間的直流電壓。線壓感應電路5的輸出端 至JT-個電壓比較器的-個輸入端。在具體』施例中示出 ::壓比較器6和7。電壓比較器6的其他輪入端連接 到參考電壓產生器8，而電壓比較器7的其他輸入端則連 接到參考電壓產生器9,其產生的參考電壓不同於產生器8 所產生的參考電壓。 ™ . 若感應電路5感應到的直流線電壓高於產生器8所產生 的參考電壓，則Γ 1」將出現在比較器6的輸出端。 同樣的情形，若感應到的直流線電壓高於產生器9所產 生的參考電壓，則「"將出現在比較器7的輸出端。 轉比較器6的輸出端連接到雙穩態多諸振i器ig的資料輸 巾1〇具有-個輸出細-個時脈輸入端CK^ '個清除輸入端CLR。 一μ同樣的情形，比較器7的輸出端連接到與1〇相同的雙穩 恐多諧振堡器11之資.料輸入端D.。 雙穩態多諧振盪器10和11的清除輸入端（：1^反連接到反 相器12的輸出端，而12的輸入端連接到一個模式輸入端 13，在13中，當用户線介面電路處於主動模式，則出現「 1」，當用户線介面電路處於待機模式，則出現「〇」。 雙穩態多諧振盪器10和1 1 時脈輸入端CK連接到與電 路14的輸出端。與電路14的—一個輸入端連接到模式輸2 端13，而它的其它輸入端則連接到環路檢波器15的輸入 -6- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公楚） (諳先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消t合作社印製 ---------丨丨---------- 五 395109 A7 B7 、發明説明（ 4 經濟部中央標準局員工消費合作社印裝 端’在環路檢波器1m、 而^、 器5上，若用尸站摘機，則出現Γ 1」， 而®用尸站掛機，則出現「〇」。 湯哭10 J出現在與％路14的輸出端’即在雙穩態多諧振 10和11的時脈輸 D上的訊號。 〜CK上，輸出陳屋資.料輸入端 速拉二：發月’專用计數訊號產生器1藉由運算放大器16 接鳩出端4，其中產生器i連接到運算放大器Μ的… 輸…而輸出端經由電阻17連接到「―」輸入端。- 藓tit發明’運异放大器16的增益增加或減少，以回應 精由感應電路5所感應之直流線電壓。 =項工作完成於電阻17與運算放大器16的「_」輸入端 …連接點，其中運算放大器…”―」輸入端藉由一 個電阻連接到至少一個電壓控制開關。 在具體實施例中顯示，交互連接點18個別藉由電阻21 和22 ’連接到兩個電壓控制開關19和20。 19和20可以是電晶體開關。 開關19受控於雙邊態多諧振盪器1〇和u的輸出g之出 現電壓，而開關20則受控於雙穩態多諧振盪器j丨的輸出_ 之出現電壓。 當開關19和20處於.如圖所示之位置，即關，運算放大 器16的增益等於丄，相當於短甩户線或低用户線電壓。當 開關19或20其中之一受觸發日争.，增益則增加，相當於1 用户線。 爲了確定在同一 4間開關19和2 0.中只有二個被觸於， -7 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X297公釐） .1 - « II - «· I 批鱗| I (讀先間讀背面之注意事項再填寫本頁) —訂 線 經濟部中央標準局員工消费合作社印？4 895109 A7 -_____________B7_ 五、發明説明（5 ) ―, 開關19受控於與閘24，而24有其中一個輸入直接連到雙 穩態多諸振盥器10的輸出g。其它輸入則連到反相器2 3的 輸出端’ 23的輸入端連接到雙穩態多諧振盪器丨J的輸出g ，以控制開關20。 在具體實施例中顯示’假設雙穩態多諧振盪器丨〇控制放-大器16的增益，這增益相當於比雙穩態多諧振盪器. 設定之較低的專用計數増益。、 因此’若雙穩態多諧振盪器10的輸出爲高値，則蘭關19 只有在雙穩態多諧振盪器i i的輸出爲低値時被觸發。 在另一方面’若雙穩態多諧振盪器的輸出爲高値，則開 關20將始終被觸發。 — 當例如開關19接通，即「1」出現在雙穩態多諧振盪器 1〇的輸出δ，則運算放大器16的增益將等於（R17+R21W R21。 當孩用户站被檢測爲摘機時，Γ .1」出現在環路檢波器 輸入端15，若用户線介面電路處於主動模式，則該放大器 16的增益被閂鎖。’ 孩放大器16的解閂鎖增益發生變化至用户線介面電路 的待機模式，即當Γ 〇」出現在模式輸入端13。 解問鎖的放大器16移轉至用户線介面電路的待機模式 之原因’是爲了確定專用計數訊.號能被傳送，甚至當用户 已經掛機，只要線路被認定爲主動，及只要用户線介面奄Page I Printed by the staff of the Central Standards Bureau of the Ministry of Economic Affairs, A7, B7. V. Description of the invention (In order to complete this work, the input circuit includes a line voltage sensing circuit 5 for sensing the DC line voltage of the subscriber line interface circuit, ie The DC voltage between the ring lines 3. The output terminal of the line voltage sensing circuit 5 is connected to an input terminal of the JT voltage comparator. In the specific example, it is shown: voltage comparators 6 and 7. Voltage comparator 6 The other round-in terminals are connected to the reference voltage generator 8, and the other input terminals of the voltage comparator 7 are connected to the reference voltage generator 9, which generates a reference voltage different from the reference voltage generated by the generator 8. ™. If The DC line voltage sensed by the induction circuit 5 is higher than the reference voltage generated by the generator 8, and Γ1 ″ will appear at the output of the comparator 6. In the same situation, if the DC line voltage induced is higher than the generator 9 The generated reference voltage will then appear at the output of comparator 7. The output of the comparator 6 is connected to the bistable multi-vibrator device ig, which has an output of- Clock input CK ^ '个 清Input terminal CLR. In the same situation, the output terminal of comparator 7 is connected to the same bistable multiresonator 11 as 10. Input terminal D. bistable multivibrator 10 and 11 The clear input terminal (: 1 ^ is inversely connected to the output terminal of the inverter 12, and the input terminal of 12 is connected to a mode input terminal 13. In 13, when the subscriber line interface circuit is in active mode, "1" appears When the subscriber line interface circuit is in standby mode, "0" appears. The bistable multivibrator 10 and 1 1 clock input terminal CK is connected to the output terminal of circuit 14. It is connected to-one input terminal of circuit 14 To the mode input 2 terminal 13 while its other input terminals are connected to the input of the loop detector 15 -6- This paper size applies to China National Standard (CNS) A4 specification (210X297). (Please read the note on the back first Please fill in this page for further information) Printed by the Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs -------- 丨 丨 ------------ 5 395109 A7 B7, Invention Description (4 Central Ministry of Economic Affairs The printed end of the Consumer Cooperatives of the Bureau of Standards Bureau is on the loop detector 1m, and ^, and 5, if a corpse station is used Machine, Γ 1 "appears, and ® hangs up with a corpse station," 0 "appears. Tang crying 10 J appears at the output of% 14, which is the clock output of bistable multiresonance 10 and 11. The signal on D. ~ CK, the output of Chen Wuzi. The input terminal speed pulls two: the month's special counting signal generator 1 is connected to the output terminal 4 through the operational amplifier 16, and the generator i is connected to the operational amplifier. The M ... input ... and the output terminal is connected to the "-" input terminal via a resistor 17.-Motit invented that the gain of the 'operational amplifier 16' was increased or decreased in response to the DC line voltage induced by the induction circuit 5. = The work is completed at the "_" input terminal… of the resistor 17 and the operational amplifier 16. The connection point, among which the operational amplifier ”“ ”input terminal is connected to at least one voltage control switch through a resistor. It is shown in the specific embodiment that the interactive connection points 18 are respectively connected to two voltage control switches 19 and 20 through resistors 21 and 22 '. 19 and 20 may be transistor switches. The switch 19 is controlled by the appearance voltage of the output g of the bilateral multivibrator 10 and u, and the switch 20 is controlled by the appearance voltage of the output bistable multivibrator j 丨. When the switches 19 and 20 are in the position shown in the figure, that is, off, the gain of the operational amplifier 16 is equal to 丄, which is equivalent to a short-line or low-line voltage. When one of the switches 19 or 20 is triggered, the gain is increased, which is equivalent to 1 subscriber line. In order to make sure that only two of the same four switches 19 and 20 are touched, -7 This paper size applies the Chinese National Standard (CNS) Λ4 specification (210X297 mm) .1-«II-« · I batch scale | I (read the notes on the back of the book first and then fill out this page) — Ordered by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs? 4 895109 A7 -_____________ B7_ 5. Description of the Invention (5) ― Switch 19 is controlled by AND gate 24, and 24 has one of its inputs directly connected to the output g of the bi-stable multi-vibrator 10. The other inputs are connected to the output terminal '23 of the inverter 23, and the input terminal of the 23 is connected to the output g of the bistable multivibrator J to control the switch 20. In the specific embodiment, it is shown that ‘assuming that the bistable multivibrator 丨 〇 controls the gain of the amplifier-amplifier 16, which is equivalent to a lower dedicated counting benefit than the bistable multivibrator. Therefore, if the output of the bistable multivibrator 10 is high, then the Languan 19 is triggered only when the output of the bistable multivibrator i i is low. On the other hand ', if the output of the bistable multivibrator is high, the switch 20 will always be triggered. — For example, when the switch 19 is turned on, that is, "1" appears at the output δ of the bistable multivibrator 10, the gain of the operational amplifier 16 will be equal to (R17 + R21W R21.) When the user station is detected as off-hook When "Γ.1" appears at the input 15 of the loop detector, if the subscriber line interface circuit is in the active mode, the gain of the amplifier 16 is latched. 'The unlatching gain of the amplifier 16 is changed to the subscriber line interface. The standby mode of the circuit, that is, when Γ 〇 ”appears on the mode input terminal 13. The reason why the lock-up amplifier 16 is transferred to the standby mode of the subscriber line interface circuit is to determine the dedicated counting signal. The signal can be transmitted even when The user has hung up, as long as the line is deemed active, and as long as the user line interface is active.
路處於主動模式。如同當用户通話過已掛機後，發送所謂 的殘餘脈衝。 . H -8 - 本紙張尺度適用中國囤家標準（CNS ) A4規格（2〗〇X：297公釐） (諳先閱讀背面之注意事領再4寫本頁) 訂"------線The road is in active mode. It is like sending a so-called residual pulse after the user has been on-hook. H -8-This paper size is applicable to China Standard (CNS) A4 specification (2〗 〇X: 297mm) (谙 Please read the notes on the back before writing this page) Order " ---- --line