201018206 九、發明說明： 【發明所屬之技街領域】 的語音通道而 禮賓服務、以 本發明係關於使用數位無線電信網路中 從車輛處進行資料通訊以便取得緊急服務、 及其它服務的方法與設備。201018206 IX. Invention Description: The voice channel of the invention field, and the concierge service, the method of the present invention relates to the use of digital communication in a digital wireless telecommunication network for data communication from the vehicle for obtaining emergency services and other services. device.
iOLt^S 曰提申的美國臨時專利 本申請案主張2007年1〇月20 申請案第60/981，487號的優先權。 著作權簦明 ◎2007-2008 Airbiquity Inc.。本專利文件之揭示内容的 一部分含有受到著作權保護的素材。著作權擁有者不反對 任何人複製發表在專利商標事務所專利㈣或記錄之中的 本專利文件或本專利揭示内容，不過，將保留凡是第37 CFR§k71(d)條之所有著作權。 【先前技術】 無線電k覆蓋率已經幾乎普遍存在於全世界的許多地 方，尤其是已工業化的國家。不過同樣地，在許多開發中 國家中’缺乏傳統銅質電線電信基礎建設的整個區域則會 直接跳過該項技術，而改採佈署無線技術。現代的無線網 路會提供一系列的語音服務與資料服務。該些服務的技術 性細節可以在許多地方尋得，舉例來說，3GPP標準團體網 站 www.3gpp.org。 不過，某些無線資料服務卻非常慢，而且覆蓋率非常 201018206 零散（spotty)。相反地，無線語音服務則傾向會有良好的品 質’而且在人們行旅的每個地方幾乎都可以利用。我們所 指的「帶内」通訊係指在語音通道中，和資料通道、控制 通道、或疋其它非語音無線服務有所區別。語音通道的特 徵為具有特殊的效能特徵。舉例來說，以正常人類的語音 為基礎，僅有非常窄範圍的聲音頻率需要被收發。事實上， 精密的壓縮與編碼技術均已知可在數位無線網路上達到非 常有效發送與接收人類語音的目的。不過，該些語音編碼 〇器（voiceco㈣或是「音碼器（vocoder)」—它們通常會被施 行在軟體、DSP晶片、以及類似物之中—並無法妥適地發射 非語音聲音。相反地，它們會被謹慎地設計成用以濾除非 吾音訊號。 ' 在美國專利案第6，144,336號之中亦可尋得相關的資 訊，本文以引用的方式將其併入。在美國專利案第6 69〇681 號之中則可尋得額外的揭示内容，本文同樣以引用的方式 將其併入。且最後’進一步相關的揭示内容則出現在 專利案第號之中’本文同樣以引用的方式將其併 入，如同在本文中被完全提出般。前面的專利案均^ 請案之受讓人所擁有。 從下面較佳實施例的詳細說明中，參考隨附圖 可明白本發明的額外觀點以及優點❶ 更 【發明内容】 許多車輛（例如自動汽車）現在均具有在無線網路上進 201018206 行通訊的功能》我們將該些車用系統稱為遠程資訊服務客 戶系統（telematics client system)。該遠程資訊服務客戶系統iOLt^S 美国 的 的 US US Provisional Patent This application claims priority to No. 60/981,487, filed on January 20, 2007. Copyright ◎2007-2008 Airbiquity Inc. A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction of the patent document or the disclosure of the patent in the patent (4) or record of the patent office, but all copyrights in the 37 CFR §k71(d) will be retained. [Prior Art] Radio k coverage has become almost universal in many parts of the world, especially in industrialized countries. Similarly, in many developing countries, the entire region lacking the traditional copper wire telecommunications infrastructure will simply skip the technology and deploy wireless technology. Modern wireless networks offer a range of voice and data services. The technical details of these services can be found in many places, for example, the 3GPP standards group website www.3gpp.org. However, some wireless data services are very slow and have a very high coverage rate of 201018206. Conversely, wireless voice services tend to have good quality' and are available in almost every place of travel. What we mean by "in-band" communication is the difference between a data channel, a data channel, a control channel, or other non-voice wireless services. The characteristics of the voice channel are characterized by special performance. For example, based on normal human speech, only a very narrow range of sound frequencies needs to be transceived. In fact, sophisticated compression and coding techniques are known to achieve very efficient transmission and reception of human speech on digital wireless networks. However, these speech coding devices (voiceco (four) or "vocoder" - which are usually implemented in software, DSP chips, and the like - do not properly emit non-speech sounds. Conversely, They will be carefully designed to filter out the audio signal. 'The relevant information can also be found in US Patent No. 6,144,336, which is incorporated herein by reference. Additional disclosures can be found in 6 69〇681, which is also incorporated by reference. Finally, 'further related disclosures appear in the patent number'. </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; Additional points and advantages ❶ More [Invention] Many vehicles (such as automatic cars) now have the function of entering the 201018206 line of communication on the wireless network. Customer information service systems (telematics client system). The remote customer service information system
❹ 可能包括被設計成用以操作在一自動汽車環境中的内建硬 體與軟體。該遠程資訊服務軟體包含一 r消費者應用軟 體J ，其可能係為任何應用軟體，尤其是運用資料傳輪的 應用軟體。據此，該客戶系統會包含一無線收發器，例如 可攜式蜂巢電話所知悉的無線收發器❶此處，我們所指的 「資料」係指應用軟體資料或是使用者資料，而非在無線 電“中用來傳遞人類語音内容的資料（音碼器資料）或^用 來控制無線操作的資料（控制通道資料）。使用者資料傳輪可 以在該無線網路上完成。 較佳的係，「帶内發訊」係在遠程資訊服務車用系統 中用於進行使用者資料發射。我們所指的「帶内發訊」'係 指^释:i通道中，和資料通道、控制通道、或是其它非达 音無線服務有所區別。 合宜的設施（舉例來說， 帶内發訊必須在該通話的兩端用到 帶内數據機）。先前技術的問題在於 偵測何時啟動與關閉該數據機。也就是，當一通話連線 後（建立鏈路），該接收系統何時應該從語音操作模式（通常 會使用麥克風與揚聲器）切換至資料模式（於該模式中，其會 運作用以從音頻（語音）通道中還原資料）？這係一項控制發 訊的問題。 無線網路中的先前技術控制發訊係運用一非帶内的控 制通道。這可能會係-項_，因為控制通道發訊可能為 電訊營運商獨有且因而無法供所有客戶系統使用。我們需 201018206 要的係一種發訊通知該車用系統用以控制何時啟動與關閉 該帶内數據機的方式，而不需要使用控制通道來達成此目 的。換言之，車輛側（遠程資訊服務客戶）的帶内數據機需要 種可罪的方式來偵測伺服器侧（舉例來說，或公共服 務應答點，其係位於通話接受中心或「資料中心」，其可 月b係自動的（無人留守的））何時準備接收要在該語音通道中 從該車輛處被發射的資料或是偵測該伺服器側何時要求該 資料。此作業的進行方式應該要支援自動操作，也就是f 不需要人為干預。 於一實施例中，在建立一語音通道通話之後，通話接 又中〜處的伺服器便會發射一預設的音頻訊號（舉例來說， 2^25Hz的音調）’該訊號已經過選擇以便橫跨於目前的音碼 器技術。換δ之，此訊號的頻率係從語音頻帶内選出，俾 使其能夠在音碼器中被編碼並且如同語音般地經由語音通 道被成功地發射。在車輛或汽車側處，該車用系統會在該 語音通話期間接收該語音通道中的訊號。其會偵測此被特 «別選出的訊號，並且將其視為一控制訊號用以在相同的語 音通道通話期間起始資料傳輸。 於另一實施例中，為達與舊型帶内數據機逆向相容的 目的，該伺服器會從通話接受中心處發射一經過頻率調變 的聲音訊號給該IVS作為發訊音調。 於一實施例中，該車用系統（IVS)會響應於接收該預設 訊號而讓該聲音系統揚聲器保持靜音’俾使該車輛的乘客 不會聽見以聲音頻率音調的形式在該消費者應用軟體及該 201018206 通話接受中心之間進行傳輸的資料的響聲。 於某二實施例中’ g IVS可能會響應於接收與解碼來 自該伺服器的預設訊號而發射一回應訊號。該「回應」音 調可月匕會具有第—選定頻率’也就是，解釋性範例中的 1778Hz。其還具有_選^的持續時間長度，舉例來說，解 釋性範例中❾300msec。這係該IVS準備開始進行帶内數據 機資料交談的訊號。倘若該飼服器债測到此訊號維持至少 一段預設的臨界時間週期的話，換言之，約扇顏。，那麼 〇 該伺服器便會停止發射該起始音調。 於IVS I範例中，其會被酉己置成用以施行上面的方 法’該車用系統（IVS)包括下面要件：遠程資訊服務軟體， 其會被儲存在一記憶體之中並且會被調適成用以在一處理 器上執行以便透過一數位無線通訊網路中的一語音通道來 發送與接收資料；該遠程資訊服務軟體包含一消費者應用 軟體以及-帶内發訊數據機，該帶内發訊數據機會編碼與 解碼發送自及發送至該消費者應用軟體的資料；一車用聲 音系統，該聲音系統包含一揚聲器以及一麥克風；一内建 電話模組，該電話模組會被調適成用以透過一數位無線通 訊網路來進行至少語音通道通訊；一切換器，用於:可控 制的方式將該車用聲音系統耦合至該内建電話模組以便進 行語音通訊，或者將該帶内數據機耦合至該内建電話模組 以便進行資料通訊，前述全部係在單一的語音通道無線通 話期間進行；該切換器會被配置成用以藉由將該帶内發訊 數據機耦合至該内建電話模組來中斷一語音談話，' Ώ ’以便開 201018206 始進行-帶内資料交談，並且會在—語音通道通話期間響 應於债測透過該内建電話模組所接收到的一預設訊號音調 來讓該車用聲音系統的揚聲器保持靜音；以及其中該訊號 音調大致上具有一預設的聲音頻率。 【實施方式】 圖1所示的係一無線語音通話（也就是，無線電信網路 中的電話通話）的典型通話路徑的簡化方塊圖。㈣一麥克 ©風的類比語音訊號會被一 A/D轉換器數位化並且接著會被 饋送至-音碼器編碼演算法(以8000個取樣/秒該編碼器 會產生多個壓縮資料封包(通常一個封包會有2〇ms的聲音 訊框）’並且會將此資料串流饋送至一無線電發射器。在另 ^側，一無線電接收器則會讓該等封包傳送至解碼演算 法，其接著會將原始的語音訊號（不完整地）重建為一 串流。此PCM串流最後會被反向轉換成__類比電壓，該類 比電壓接著會被施加至一揚聲器。 ® I用此類型的系統，經由審慎選擇頻率、時序、以及 使用特殊技術將-音碼器「巧裝」成讓資訊「看似」人類 語音資料的方式來發射該資訊，便可以「帶内」的方式來 發射中等數量的資料（此處我們所指的係使用者眘|，而非 音碼器通話資料）。此類型的資料通訊（其係使用一無線系統 的浯音通道）有時候會被稱為「帶内發訊」。其可以被稱為 帶内發訊數據機」（借用傳統「陸線」電信中所熟知的舊 有數據機用詞（調變器-解調變器））的硬體及/或軟體的方式 201018206 來施行。 數篇已頒佈的專利案均揭示過在無線電信網路的一語 音通道上交換數位資料的帶内發訊技術。於其中—範= 中，輸入會接收數位資料。編碼器會將該數位資料轉換成 用以合成人類通話之頻率特徵的聲音音調。該數位資料還 會經過編碼以防止該電信網路中的語音編碼電路系統破壞 代表該數位資料的經過合成的聲音音調。接著，輪出便會 將該等經過合成的聲音音調輸出至一數位無線電信網路的 一語音通道中。於某些情況中，攜載著「音調」的資料會 與同步的語音-起被發送。該等音調可能會變短並且比較 不引人注⑮於其匕施行方式中，有時候又稱為「空白盘 ^發法（blank andbui：st)」’當資料經由該語音 射 Γ語音會被截掉。又，於其它施行方式中，-部分的聲 於語音，而其它部分則會被保留供資料使用。 这有助於接收側的解碼。 帶内發訊必須在該通話的兩端用到合宜的 :就㈣輯機）。問題在於_何時啟動與關閉該輯二 該從建立鍵路)，該接收系統何時應 料模式(於二(::運使:麥克風與揚聲器)切換至資 原資料ρ赵杜，、運作用以從聲音（語音）通道中還 原貝科）？。較佳的係，這應該要自 要人為干預。無 凡成’也就疋，不需 帶内的控制通道前技術控制發訊係運用一非 能為電信營運商猶：不同的係，控制通道發訊可 運商獨有且因而無法供所有客戶系統使用。 201018206 此項技術的其中一項應用便係與機動車輛進行通訊（作 為本文件中的解釋例）。現今，許多車輛均具有在無線網路 上進行通訊的功能。我們將該些車用系統稱為遠程資訊服 務客戶系統。圖2所示的便係一解釋性車用系統（IVS)的簡 化方塊圖。圖中顯示的係一典型的遠程資訊服務客戶系統 的相關部分的範例。此客戶系統係由被設計成用以操作在 自動汽車環境中的内建硬體與軟體所組成。❹ May include built-in hardware and software designed to operate in an automotive environment. The telematics software includes a consumer application software J, which may be any application software, especially application software that uses data transfer. Accordingly, the client system will include a wireless transceiver, such as a wireless transceiver known to the portable cellular phone. Here, we mean "data" means application software or user data, not The radio "in the data used to transmit human speech content (phone data) or ^ used to control wireless operation (control channel data). User data transfer can be done on the wireless network. "In-band messaging" is used to transmit user data in a telematics vehicle system. What we mean by "in-band messaging" means that the i channel is different from the data channel, control channel, or other non-audio wireless service. Appropriate facilities (for example, in-band messaging must use an in-band modem at both ends of the call). A problem with the prior art is to detect when the modem is turned on and off. That is, when a call is connected (establishing a link), when should the receiving system switch from voice mode (usually using a microphone and speaker) to data mode (in this mode, it will operate from audio ( Voice) channel to restore data)? This is a question that controls the transmission. The prior art control communication in the wireless network uses a non-in-band control channel. This may be the item_item because the control channel signaling may be unique to the telecommunications carrier and thus not available to all customer systems. We need 201018206 to send a message to the vehicle system to control when the in-band modem is turned on and off, without the need to use a control channel to achieve this. In other words, the in-band modem on the vehicle side (remote information service client) needs a guilty way to detect the server side (for example, or a public service answering point, which is located in the call acceptance center or "data center". It can be used to receive data that is to be transmitted from the vehicle in the voice channel or to detect when the server side requests the data. This job should be done in an automated manner, ie f does not require human intervention. In an embodiment, after establishing a voice channel call, the server in the middle of the call will transmit a preset audio signal (for example, a tone of 2^25 Hz). The signal has been selected so that Across the current vocoder technology. For δ, the frequency of this signal is selected from the speech band, so that it can be encoded in the vocoder and successfully transmitted as a voice via the voice channel. At the vehicle or car side, the vehicle system receives signals from the voice channel during the voice call. It detects the signal selected by the special « and selects it as a control signal to initiate data transmission during the same voice channel call. In another embodiment, the server transmits a frequency-modulated audio signal from the call acceptance center to the IVS as a signaling tone for the purpose of backward compatibility with the old in-band modem. In an embodiment, the vehicle system (IVS) keeps the sound system speaker muted in response to receiving the preset signal, so that the passenger of the vehicle does not hear the sound frequency tone in the consumer application. The sound of the software and the data transmitted between the 201018206 call acceptance center. In a second embodiment, the 'g IVS may transmit a response signal in response to receiving and decoding a preset signal from the server. The "response" tone may have a first-selected frequency at the month, that is, 1778 Hz in the explanatory example. It also has a duration of _selection, for example, 300 msec in the explanatory example. This is the signal that the IVS is ready to begin an in-band data chat. If the feeding machine debt detects that the signal is maintained for at least a predetermined critical time period, in other words, about the fan. , then 〇 the server will stop transmitting the starting tone. In the IVS I paradigm, it will be set up to perform the above method. The vehicle system (IVS) includes the following requirements: telematics software, which will be stored in a memory and will be adapted. The method is configured to be executed on a processor to transmit and receive data through a voice channel in a digital communication network; the remote information service software includes a consumer application software and an in-band signaling data device. The data transmission opportunity encodes and decodes data transmitted from and to the consumer application software; a vehicle sound system, the sound system includes a speaker and a microphone; and a built-in telephone module, the telephone module is adapted The device is configured to perform at least voice channel communication through a digital communication network; a switch for: coupling the vehicle sound system to the built-in phone module for voice communication in a controllable manner, or An internal data machine is coupled to the built-in telephone module for data communication, all of which are performed during a single voice channel wireless call; The device is configured to interrupt a voice conversation by coupling the in-band signaling modem to the built-in telephone module, 'Ώ' to start the 201018206-in-band material conversation, and will be in-voice During the channel call, the speaker of the car sound system is muted in response to a predetermined signal tone received by the built-in phone module; and wherein the signal tone has a predetermined sound frequency. [Embodiment] A simplified block diagram of a typical call path for a wireless voice call (i.e., a telephone call in a wireless telecommunications network) is shown in FIG. (d) The analog voice signal of a Mike© wind will be digitized by an A/D converter and then fed to the -phone code algorithm (at 8000 samples/sec, the encoder will generate multiple compressed data packets ( Usually a packet will have a 2 ms audio frame) and will feed this stream to a radio transmitter. On the other side, a radio receiver will pass the packets to the decoding algorithm. The original voice signal (incompletely) is then reconstructed into a stream that is eventually inverted into a __ analog voltage, which is then applied to a speaker. The system can transmit "in-band" by carefully selecting the frequency, timing, and using special techniques to "smart" the vocoder into a way that allows the information to "see" human speech data. A moderate amount of data (here we refer to users who are careful | rather than vocoder calls). This type of data communication (which uses a wireless system's voice channel) is sometimes referred to as " In-band "" can be called an in-band signaling modem" (using the old data machine terminology (demodulator-demodulation transformer) well known in traditional "landline" telecommunications) and / Or the software method 201018206 is implemented. Several patents have been published to reveal the in-band signaling technology for exchanging digital data on a voice channel of a wireless telecommunication network. In the case, the input will receive digital data. The encoder converts the digital data into sound tones that synthesize the frequency characteristics of the human call. The digital data is also encoded to prevent the speech encoding circuitry in the telecommunications network from corrupting the synthesized representation of the digital data. Sound tones. Then, the rounded out sounds are output to a voice channel of a digital wireless telecommunications network. In some cases, the data carrying the "tone" will be synchronized with the voice. - is sent. These tones may be shorter and less noticeable 15 in their implementation, sometimes referred to as "blank and bui: st" The voice will be cut off by the voice. In other modes of execution, the - part of the voice is voiced, while the other parts are reserved for data use. This helps the receiving side to decode. It must be used at both ends of the call: (4).) The problem is _ when to start and close the second set of slaves to establish the keyway), when the receiving system should respond to the mode (in the second (:: transport: microphone and speaker) switch to the original data ρ Zhao Du, the operation is used Restore Beko from the sound (speech) channel? . Preferably, this should be done by human intervention. “无凡成” is also awkward, no need to bring in the control channel before the technical control of the use of the system is not a telecommunication operator: different systems, control channel signaling is unique to the carrier and thus not available to all customers System use. 201018206 One of the applications of this technology is to communicate with motor vehicles (as an explanation in this document). Today, many vehicles have the ability to communicate over a wireless network. We refer to these vehicle systems as telematics customer systems. Figure 2 is a simplified block diagram of an illustrative vehicle system (IVS). The figure shows an example of a relevant part of a typical telematics client system. This customer system consists of built-in hardware and software designed to operate in an automotive environment.
在圖2中，該遠程資訊服務軟體包含一「消費者應用 軟體」’其可能係任何應用軟體，尤其是運用透過無線網 路來進行資料傳輸的應用軟體。舉例來說，該消費者應用 軟體可此與導航或娛樂有關。在操作中，胃消費者應用軟 體會將資料（較佳的係，資料封包）傳遞給—帶内發訊數據 機。該帶内數據機會將該資料（合宜的話，還會連同封包標 ❹及其它附加資料）㈣成聲音頻率音調，它們會出現在 「PCM切換器」處。 該客戶系統（IVS)的-種目的係在乘客用來與操作人員 進行通訊之相同無線語音通話上於—車輛與—健器之間 傳輸遠程資訊服務資料。有0主/ 貝付有時候，該伺服器係位於可聯絡 到操作人員的「通話接受中心」處，雷同於911緊急通話 接受中心。此處，該系統必須要有一切換器，其會在一帶 内數據機交談開始時中斷車 呵早用聲音系統。倘若該切換決策 要受控於該伺服器側的話， ^ 那麼’該帶内發訊便必須被用 來表示一數據機交談何時應該開始。 再欠參考圖2 ’於此實施例中，該切換器係由一 12 201018206 帶内「數據機偵測」技術來控制。有兩種方式會造成錯誤. 錯誤偵測（false detection)(揚聲器在不應該被靜音時保持靜 音）’以及漏失偵測（missed detection^揚聲器在應該被靜音 時未保持靜音）。兩種錯誤的發生頻率均應該越不頻繁越 好，但是要防止它們發生卻係一項挑戰。本發明的其中一 項重要優點便係具有改善的偵測效能。 圖3所示的係第一帶内數據機偵測技術的時間前進過 程示意圖。該圖中所示的給定音調頻率僅為範例，於操作 © 中’該伺服器（其係位於通話接受中心或「資料中心」，其 可能係自動的（無人留守的））會發射一預設的音頻訊號（舉例 來說，2225Hz)，該訊號已經過選擇以便橫跨於目前的音瑪 器技術。這便係要送往該車用系統以中斷語音談話並且開 始進行一帶内數據機交談的訊號。 在IVS側偵測到此頻率音調至少一段預設的臨界時間 週期（換言之，約30mSec)之後，便會視為已經完成「初期 偵測」，而且該IVS會讓該車輛中的揚聲器保持靜音（如此 ® 一來，該車輛的乘客便不會聽見以聲音頻率音調的形式進 仃傳輸之資料的「雜音」）。倘若該選定的「發訊音調」被 偵測到的時間長過預設的臨界時間週期的話，便會認為已 經進行過「確認」，並且會從該IVS發送一「回應」給該 伺服器。據此，該ivs系統將會切換圖2中的pCM切換器， 用以將該帶内數據機耦合至該内建電話模組，以便（在該語 音通道中）將資料發射至該資料中心。 該「回應」音調具有第二選定頻率，也就是，解釋性 13 201018206 範中的1778Hz。該「回應」音調還具有—選定的持續時 1長度舉例來說，解釋性範例中的3〇〇msec。這係該ivs 準備開始進行τ内數據機交談的訊號。倘若該飼服器摘測 到此訊號維持至少―段預設的臨界時間週期的話（換言之約 20〇msec)，那麼該飼服器便會停止發射該起始音調。 前述策略可用於許多應用中，但是隨著無線技術的改 變部會產生進-步的問題。其中一個要頻繁改善的方面便 係、上面所述的音碼器。當音碼器在編碼人類語音中變得比 ©較有效時’其有時候就會變得比較難以經由該些音碼器所 使用的語音通道來發射資料。上面所述的帶内控制發訊技 術可妥適地用在宜此立 '、二曰碼器，但疋卻無法妥適地用在其 它、較新的樣式。 耧由研究新型音碼器的特徵並且接著試圖設計出一種 相容於該新型音碼器的控制發訊技術或許可以解決此項問 題，但是即使成功，仍有許多使用中的車輛操作的係舊型 老式數據機」。一種成功的通訊系統重要的便係配合 ^(其具有老式數據機）以及利新型音碼ϋ的新型 IVS兩者均會正確地操作。同時還需要與被佈署在各式各樣 =或=它可攜式應用，舉例來說，手持式個人通訊 裝置）的二或多個不同帶内數據機正確地互動 上面所述之助「初期= 的音碼器來運作，但是卻會在新型樣式中被遽除。最佳的 係，該m只是無法在所希時間内讓揚聲器保持靜音 糟的則係，該帶内資料通訊系統將會故障。 201018206 資料飼服器與各式各樣行動單元之間的逆向相容性與 正向相容性的問題並不僅限於控制發訊。經由某些音碼器 的實際資料傳輸可能會需要使用與老式音碼器相容之頻率 非常不同的頻率。舉例來說’利用某些老式音碼器， 2100Hz(下行鏈路）以及2500Hz(上行鏈路；)便係用於編碼資 料的實用頻率。對其它音碼器來說，較低的頻率（例如 1200Hz與1600Hz)則可能為佳。 因此，對該伺服器系統來說，在一特殊的通話中「發 ❿ 現」或是偵測使用中的遠端音碼器的類型非常重要，其不 僅可用於控制發訊，還能夠合宜地編碼資料而不會受到遠 端音碼器的影響。再者，重要的係，該伺服器要非常快速 地發現使用中的遠端音碼器的類型，舉例來說，小於兩秒， 俾使其能夠在另人分心的資料音調被聽到之前發送—合宜 的控制訊號來指示該IVS，用以讓該車輛中的揚聲器保持靜 音（一般來說，用於聯絡通話中心的外來電話號碼並無法被 S來區分使用中的遠端數據機，其因為同—個電話號碼較 佳的係使用於一給定車輛製造商的所有IVS系統）。 參考圖4。為了說明，我們假設使用一 2225Hz的音調 作為一舊型音碼器通道上的控制訊號，但是該音調在新型 =音碼器上並不可靠。根據本發明的另一項觀點，該伺服 盗會發射一經過頻率調變（FM)的音調，該FMm號會在5〇〇 與600Hz之間振逵。舉例來說，每隔2〇或4〇職c便可能 會切換頻率；這說明的係強度的大小等級，實際的數值並 不重要。頻率調變係在標準的語音談話期間防止發生錯誤 15 201018206 偵測的一項關鍵觀點。 在接著參考圖5。倘若該伺服器數據機必須逆向相容於 老式IVS數據機的話，那麼在聆聽兩種類型的回應訊號時 可能會在新型起始訊號與舊型起始訊號之間交替。 熟習本技術的人士便會明白，在不脫離本發明的基礎 原理下可以對上面所述之實施例的細節進行許多變更。所 以，本發明的範疇應該僅取決於下面的申請專利範圍。 ® 【圖式簡單說明】 圖1所示的係一無線語音通話（也就是，&線電信網路 中的電話通話）的典型通話路徑的簡化方塊圖。 圖2所示的係一解釋性車用系統（IVS)的簡化方塊圖。 圖3所示的係一帶内數據機偵測技術的時間前進過程 示意圖。 圖4所示的係根據本發明一實施例套用頻率調變音調 _ 之經改善帶内數據機偵測技術的時間前進過程示意圖。 圖5所示的係一逆向相容伺服器的時間前進過程示意 圖，其中該逆向相容飼服器會發射兩種類型的起始訊號並 且聆聽兩種類型的回應訊號。依此方式便能夠辨識lvs數 據機類型。 【主要元件符號說明】In Figure 2, the telematics software includes a "consumer application software" which may be any application software, especially application software that uses a wireless network for data transmission. For example, the consumer application software can be related to navigation or entertainment. In operation, the stomach consumer application software passes the data (preferably, data packets) to the in-band signaling computer. The in-band data opportunity will make the data (and, if appropriate, the packet label and other additional information) (4) into a sound frequency tone, which will appear at the "PCM Switcher". The purpose of the customer system (IVS) is to transmit telematics information between the vehicle and the health device on the same wireless voice call that the passenger uses to communicate with the operator. There are 0 main/be paying. Sometimes, the server is located at the "call acceptance center" where you can contact the operator, and it is the same as the 911 emergency call receiving center. Here, the system must have a switch that interrupts the car's early use of the sound system at the beginning of the in-band data machine conversation. If the switching decision is to be controlled by the server side, then the in-band signaling must be used to indicate when a modem conversation should begin. Referring again to Figure 2, in this embodiment, the switch is controlled by a "data machine detection" technique in the band 12 201018206. There are two ways to cause an error. False detection (the speaker remains muted when it should not be muted) and leakage detection (missed detection^ the speaker is not muted when it should be muted). The frequency of occurrence of both errors should be as low as possible, but it is a challenge to prevent them from happening. One of the important advantages of the present invention is improved detection performance. Figure 3 is a schematic diagram of the time progression of the first in-band modem detection technique. The given tone frequency shown in this figure is only an example. In Operation ©, the server (which is located in the call acceptance center or "data center", which may be automatic (unmanned)) will transmit a pre- The audio signal (for example, 2225 Hz) is set so that it has been selected to span the current karaoke technology. This is the signal to be sent to the vehicle system to interrupt the voice conversation and start a conversation with the internal data machine. After detecting the frequency tone for at least a predetermined threshold time period (in other words, about 30mSec) on the IVS side, it will be deemed that the "initial detection" has been completed, and the IVS will silence the speaker in the vehicle ( In this way, the passengers of the vehicle will not hear the "noise" of the information transmitted in the form of sound frequency tones. If the selected "telephone tone" is detected for longer than the preset threshold time period, it will be considered that "confirmation" has been performed and a "response" will be sent from the IVS to the server. Accordingly, the ivs system will switch the pCM switch of Figure 2 to couple the in-band data unit to the built-in telephone module to transmit data (in the voice channel) to the data center. The "response" tone has a second selected frequency, that is, 1778 Hz in the explanatory 13 201018206. The "response" tone also has - the selected duration 1 length, for example, 3 〇〇 msec in the explanatory example. This is the signal that the ivs is ready to start a conversation with the data machine in the τ. If the feeder picks up the signal to maintain at least a predetermined threshold time period (in other words, about 20 〇 msec), then the feeder will stop transmitting the initial tone. The aforementioned strategy can be used in many applications, but as the wireless technology changes, there will be further problems. One of the aspects that needs to be improved frequently is the vocoder described above. When a vocoder becomes more efficient than coding in human speech, it sometimes becomes more difficult to transmit data via the voice channels used by the vocoders. The in-band control signaling technology described above can be suitably used in the case of ''two-coders', but it cannot be properly used in other, newer styles. It may be possible to solve this problem by studying the characteristics of the new vocoder and then trying to design a control signaling technology that is compatible with the new vocoder, but even if it is successful, there are still many used vehicle operations. Old-fashioned data machine." An important communication system with an important communication system (which has an old-fashioned data machine) and a new type of IVS with a new audio code will operate correctly. At the same time, it is necessary to correctly interact with the two or more different in-band modems that are deployed in a variety of = or = portable applications, for example, handheld personal communication devices. The initial = coder works, but it will be removed in the new style. The best system, the m is just unable to keep the speaker silent during the time, the in-band data communication system will The problem of reverse compatibility and forward compatibility between the data feeder and various mobile units is not limited to control signaling. Actual data transmission via some vocoders may be required Use very different frequencies that are compatible with older vocoders. For example, 'with some old-fashioned vocoders, 2100Hz (downlink) and 2500Hz (uplink;) are useful frequencies for encoding data. For other vocoders, lower frequencies (such as 1200 Hz and 1600 Hz) may be better. Therefore, for the server system, it is "disappeared" or detected during a special call. Remote vocoder Types are very important, they can be used not only to control the transmission, but also to properly encode the data without being affected by the far-end vocoder. Furthermore, importantly, the server has to find the type of far-end vocoder in use very quickly, for example, less than two seconds, so that it can be sent before another distracting data tone is heard. - a suitable control signal to indicate the IVS to silence the speaker in the vehicle (generally, the foreign telephone number used to contact the call center cannot be distinguished by S from the remote data machine in use, because The same telephone number is preferred for all IVS systems of a given vehicle manufacturer. Refer to Figure 4. For purposes of illustration, we assume that a 2225 Hz tone is used as the control signal on an old vocoder channel, but the tone is not reliable on the new vocoder. According to another aspect of the present invention, the pirate transmits a frequency modulated (FM) tone that is vibrated between 5 〇〇 and 600 Hz. For example, every 2 or 4 jobs may switch frequencies; this indicates the magnitude of the strength of the system, and the actual value is not important. Frequency modulation prevents errors during standard voice conversations 15 201018206 A key point of detection. Reference is next made to Figure 5. If the server modem must be backward compatible with older IVS modems, it may alternate between the new start signal and the old start signal when listening to both types of response signals. It will be apparent to those skilled in the art that many changes in the details of the embodiments described above may be made without departing from the basic principles of the invention. Therefore, the scope of the invention should only be determined by the scope of the following claims. ® [Simple Diagram] A simplified block diagram of a typical call path for a wireless voice call (i.e., a telephone call in a & telecommunications network) is shown in FIG. Figure 2 is a simplified block diagram of an illustrative vehicle system (IVS). Figure 3 is a schematic diagram showing the time advancement process of the in-band data processor detection technology. FIG. 4 is a schematic diagram showing the time advancement process of the improved in-band data processor detection technique according to an embodiment of the present invention. Figure 5 is a schematic illustration of the time progression of a reverse compatible server in which the reverse compatible feeder emits two types of start signals and listens to both types of response signals. In this way, the lvs data type can be identified. [Main component symbol description]