TWI357741B - Adaptive data transmission for a digital in-band m - Google Patents

Adaptive data transmission for a digital in-band m Download PDF

Info

Publication number
TWI357741B
TWI357741B TW099136455A TW99136455A TWI357741B TW I357741 B TWI357741 B TW I357741B TW 099136455 A TW099136455 A TW 099136455A TW 99136455 A TW99136455 A TW 99136455A TW I357741 B TWI357741 B TW I357741B
Authority
TW
Taiwan
Prior art keywords
processor
speech
code
error
modulation
Prior art date
Application number
TW099136455A
Other languages
English (en)
Other versions
TW201129013A (en
Inventor
Kiley Birmingham
Original Assignee
Airbiquity Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Airbiquity Inc filed Critical Airbiquity Inc
Publication of TW201129013A publication Critical patent/TW201129013A/zh
Application granted granted Critical
Publication of TWI357741B publication Critical patent/TWI357741B/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0006Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
  • Communication Control (AREA)
  • Telephonic Communication Services (AREA)

Description

1357741 六、發明說明: 【發明所屬之技術領域】 本發明有關於操作於語音通道上之數位頻帶内數據 機,以及更尤其是有關於操作於語音通道之數位頻帶内數 據機的適應性資料傳輸。 【先前技術】 無線電信所含蓋範圍在世界上大部份地區特別是在工 業化國家中幾乎是無所不在。在一些發展中的國家中,其 整個地區缺乏傳統使用銅線之電信結構,已跳過該有線電 k技術而佈置無線電信技術。現代無線網路提供語音與資 料服務之範圍。此等服務之技術細節可以在許多地方找 至J例如.3GPP標準群組網站www::3 gpp.org。 然而一些無線資料服務為緩慢,且其含蓋範圍為零星 的點,「短訊息服務」(SMS)為一例。相對的,無線語音服 務通常傾向於具有良好品f,且在人們在各處旅遊時幾乎 可供使用。因此,語音服務在可靠度與廣大含蓋範圍為重 要時為良好選擇,例如執行緊急服務,像邀 丨s祭、救 療、或其他緊急服務。當人們在旅行時,尤其在★ 車中旅行時,有效無線通訊以到.達緊急服務是非常重要。飞 、我們稱為「頻帶内」通信其意義為語音通道,而與次 ^通道、控制通道、或其他非語音無線服務區別。重要的 是語音通道雖然被最佳化用於實際人類語音 、 值士· &〜令政率 ,在事實上其亦可被使用以傳輸相當小量資料(例如. 1357741 數十或數千位元,而非數百茧/ 接^主 數百4位兀)。語音通道之特徵為特 殊性爿b表現特性。例如,σ右相+ * ΜΜ τ ^ Α 八 田乍s訊頻率範圍需要 人類語音被接收發射。事實上,複雜的壓縮與編 (.術為已知,其使得可以在數位無線網路上非常有效率 地發射與接收人類語音。然而,此等語音編碼器 =:軟體,晶片、以及其他執行,完全無法良好
地傳輸非δ吾音聲音。相及的,贫# I A *反的破小心地設計以過濾掉非 語音信號。
圖1為說明用於無線聲音呼叫之典型語音通路之簡化 :塊圖’ π此在無線電信網路上之電話呼叫。此來自微音 器之類比語音信號藉由一類比/數位轉換器(A/D c贿如叫 而數位化,且然後饋至語音編碼器編碼算法(大約8000樣本 /秒)。此編碼器產生經屋縮資料封包(典型地為i封包/20ms 曰訊晝面)’ i將此資料流饋至無線電接收發射器。在另一 側,此無線t接《將封包傳駐解碼演料,其然後重 建(非完整地)原來語音信號作為PCM流。此PCM流最後被 轉換回類比電壓,且然後提供給擴音器。 使用此種型式系統,可以藉由以下方式而“頻帶内” 地傳送少里貝料(在此其意為使用者資料而非語音編碼器 语音貝料).小心地選擇頻率與計時,且使用特殊技術,藉 由使得貧訊看起來像是,,人類語音資料,以“欺騙,,語 音編碼器傳送資訊。此種型式使用無線系統之語音通道之 資料通訊,有時稱為“頻帶内信號傳送,,。此可以硬體或 及/或軟體執行,而借用在傳統“地線,,電信中所熟悉之舊 5 1357741 的數據機(moduUto卜dem〇dulat〇r)名詞,可以稱為“頻帶内 信號傳送數據機”。 數個所頒發專利揭示頻帶内信號傳送技術,立在益線 電信網路之語音通道上傳送數位資料。在一例中,此輸入 接收數位資料、編碼器將數位資料轉換成音訊音調,而綜 合人類語音之頻率特徵。將此數位資料編碼,以避免在電 =網路中語音編碼電路將代表數位資料之综合音訊音調毀 ^…輸出然後將此綜合音訊音調輸出至數位無線電信網 =語音通道。在-些情形中,此承冑“音調,,之資料盘 二同時發出,可以使得此音調為短且相當地不受阻礙:、 在其他執行中,此有時稱為“空白與突發”(脑_ 二’此語音被切斷且資料經由語音通道傳輸。在還有其 仃中,使用音訊頻率頻譜之一些部份用於达立 他部份保留用於資料,此在接收側協助解媽,,、 目前許多車輛具有在無線網路域訊之_些 Π : Ϊ ::為汽車資訊通信(We1"—客戶系統。圖2 為說明車㈣系統(IVS)之簡化方塊圖,其指出 訊通信客戶系統之相關部 :、-車貝 仏車料中#作之嵌人式硬體與軟體所構成。 在圖2中’此汽車資訊通信軟體包括—種 用,,其可以幾乎為任何應用,特別是一種應 二 W之貝㈣輸。例如’此客戶應用可 航或娛樂。在操作中,此此客戶應用將有關於導 包)傳送至頻帶㈣號傳送數據㈣乂佳為資料封 獨此頻帶内數據機將資料 1357741 (以及封包彳示頭與其他適當負載(overhead))轉換成音訊音 調。將音訊“資料音調’’編碼使其非常像語音内容,且傳 送至遠端接收器。 如同在任何通訊系統中,在頻帶内信號傳輸程序中會 產生錯誤。例如,接收器會嘗試從所傳輸資料音調中恢復 (recover)資料封包,但此恢復程序可能失敗,或此所恢復封 包為原來封包不正確呈現◊雖然如果發生錯誤會有設計可 供使用以從發射側進行重新傳輸,以及會有設計在接收側 修正錯誤,但所需要是一種設計以減少由此重新傳輸及/或 錯誤修正設計所解決錯誤之數目。以下所揭示内容解決此 與其他問題。 【發明内容】
以下為本發明之概要,以便提供本發明一些觀點之某 本瞭解。此概要之用意並不在於辨識本發明之主要/關鍵二 件,或界定本發明之範圍。其唯一目的為以簡化形成呈現 本發明之-些觀念,作為在猶後呈現更詳細說明之序古。 在-例巾,此行動裝置使用調變參數之特定集合。,將 數位位元流編碼’以產生音訊㈣,其具有所選擇不同立 机音調,以通過行動裝置之聲音編碼器。將 : 特定集合最佳化’而用於複數個語音編碼模式之子集合之 而預先並不知道語音編满哭g Α γ A — m χ ,,爲碼器目别刼作此等語音編碼楔式之 -個。此行動裝置使用調變參數之特定 碼器在無線電信網路上進行傳 田…曰編 丁得輸且監視此等傳輸之錯 7 1357741 誤。如果此錯誤數目到達一蚱 a, LL 立伯 ^ L界值,則此§吾音編>5馬器可以 使用此等語音編碼模式之一、 ° 此# S吾音編碼模式並未包括 於被最佳化調變參數之特定集合之子集合中,1因此調變 裝置由凋邊參數之特定集合切換至調變參數之不同集合。 本發明之其他觀點與優點,將 ” 口 肿由以下|父佳實她例之詳細說 明’並參考所附圖式而更為明顯。 【實施方式】 圖3Α說明被組態在調變參數集合之㈣換n⑽ 號傳輸(IBS)數據機。 系統1〇0包括:行動裝置(亦稱為“客戶,,)之頻帶内信 號傳輸卿)數據機4,而與一遠端⑽數據機、例如伺服 器之IBS數據機(未圖示)通訊。將⑽數據機4組態,以使 用調變參數第一集合8以調變封包資料。數據機4之軟 體15監視此與在無線語音通道13上與至遠端咖數據機 (未圖示)傳輸有關之錯誤,且根據該錯誤監視,以控制在傳 輸期間此系統⑽(包括IBS數據機4)是否回復⑽旧 至調變參數第二集合9。 作為背景說明’此語音編碼器例如語音編碼器5,根據 語音編碼演算法或組態於其上之語音編碼之編碼解碼^ 處理語音資料。可以有許多已知語音編碼演算法,… 編碼器並不總是沒露其所使用之特定語音編碼演算法。i 得事情更複雜的是,一些語音編碼器例如所說明之語音編 瑪器5是以複數個語音編碼演算法組態,且會在任何時候 1357741 在目前所使用語音編碼演算法之間動態地切換,其原因為 在此所討論範圍之外(此動態切換並無需由此語音編碼器宣 告)〇 如同先前解釋,此由IBS數據機將封包資料調變成音 訊信號10之目的為,將封包資料之資訊成為一種形式,而 不會被無線語音通道之語音編碼器過濾掉。然而,不同語 音編碼演算法以不同方式處理輸入,且在某些情形中其差 異是如此大,以致於一種調變設計,其可以將資訊足夠準 確地經由-種語音編碼演算法傳送,但並無法將資訊足夠 準確地經由另一種語音編碼演算法傳送。 在系統100中,此IBS數據機4以調變參數之至少兩 個集合例如8與9 έ且離,直久&主 、.且$其各代表一種調變設計。此等調 變設計之以下一或更多:個參數可以不同:㈣頻率、符號 波形長度?步型樣長度、或全/半雙工傳輪。將調變設計 8與9之1佳化,而與已知語音編碼演算法之子集合一起 :用:=著此調變設計典型地能夠以高性能:現,將 ζ μ在立 角异在傳送,但並無需將資訊 經由另〜音編碼演算法傳送。此調變設計819之Ρ 個=知:音編碼演算法之不同子集合 何=音,㈣佳化(其特徵為,以較二表現 與s吾曰編碼演算法廣泛地相容)。 _ =數據:4以“内定 ==:並未分析語音編…目前使用那-個特以馬設計。例如,在範例系統10",此高性 9 1J57741 能表現調變設計被最佳化,用於傳送最初所使用語音編碼 肩异法1-N之子集合。此特定調變設計之使用可以稱為‘‘預 先(pnor)使用’因為IBS數據機4並不具有:關於語音編 碼器5目前使用語音編碼演算法W之那一個(或有關於此 任何已知語音編碼演算法之那一個)之實際資訊。 軟體15然後使用調變設計8與9之特定一個繼續監視 傳輸。換句話說,將實際錯誤監視資訊19回授至軟體15。 如果此錯誤監視資訊19指出已經到達錯誤之臨界數量,則 軟體15導致IBS數據機4切換調變設計,此藉由在圖3a 中控制信號17邏輯地表示。在所指出之特例中,數據 機4 ‘‘回復,,至調變設計,其具有關於内定調變設計之以 下-或更多個參數:不同的調變頻率、較長的符號波形長 度、較長的同步型樣長度、以及半雙工傳輸而非全雙工傳 輸可以藉由所使用語音編碼演算法以改變調變頻率,以 防止資料被濾除。具有較大符號波形長度之調變設計供應 更夕波形貝訊至接收器,其目的為辨識所傳輸符號,此種 符號典型地更可能纟“不良通道,,環境中被正確地恢復, 境例如為一語音編碼器,其使用對封包資料有敵意之 曰’’扁馬„十。在一例中,在一調變設計中此符號較另一 :變設計中符號長四倍。此具有較長的同步型樣長度之調 I。又计使用較長同步型樣,以信號通知遠端IBS數據機負 載始,其在一“不良通道”環'境中,在接收側上較不 可能造成錯誤或遺失之偵測。使用半雙工可以避免在IBS 數據機間之串音(cross-talk)。 丄乃7741 调變設計8與9之特定例如同以下所示。此等調變設 計之第-個具有資料符,率_波特(baud),其對於發射 器與接收器之調變頻率各為_2與咖心由於在發射器 側與接收器側使用不同頻率,儘管在波形之間有暫時重疊 但並無(或最小)干擾,且全雙工操作為可能。此等調變設計 之第二回復具有資料符號速率1〇〇波特—幻,其符號長度 為第一調變設計之四倍。卜姻 μ & 對於發射器與接收器之調變頻 率均為F1/F2,且使用半雙工傳輸模式。不同於第—調變設 計,此第二回復調變設計並不使用咖調變頻率,因為此 4.8bps EVRC_B語音編碼演算法抑制此等調變頻率。 士如果IBS數據機4從内定調變設計切換至回復調變設 计’則IBS數據機4會再作妹、3 A 土 曰丹仏唬通知遠端IBS數據機根據回 ^調變設計開始解調變。因此,由於使用不對應於此等語 曰編碼演算法之目前所用之—之調變設計所產生之錯誤可 =停止、減少重新發射、以及與錯誤修正有關之處理。声 ::’更強健之回復調變設計亦可以處理歸因於無線語; ^媒體之條件之錯誤丨,例如:放棄之呼叫與損失之封包、 及/或歸因於另一網路像是電路切換媒體之錯誤。 =瞭解,在使用此回復調變設計—段時間之後 =15組態以切換回至内定調變設計。例如,如果在: 動到:小臨界錯誤一段預定時間期間之後,軟體Μ 動切換回内定調變設計。 如同先前說明,語音編碼 用特定語音編碼演算法…+ μ曰H、所使 “ 然而’有一些具有“敵意”之古五 11 1357741 音編碼器,例如會積極地濾除非語音資料之語音編碼器, 其特徵為·;、露其語音編碼演算法…特定例為由一些語音 編碼器所使用之4_8bps EVRC_B語音編碼演算法。因此, 當與使用此等特定語音編碼設計之語音編碼器配對時,可 以將IBS數據機4組態,最初地使与此回復調變設計,以 調變數位位元流。例如,如果此所辨識語音編碼演算法並 不包括於被最佳化高性能表現調變設計之語音編碼演算法 之子集合中,則可以立刻宣佈其為不良通道,以及因此ibs 數據機4使用回復調變設計,以調變數位位元流2之最初 部份。 以上所說明調變設計可以使用頻率調變設計,例如: 移頻鍵控(FSK : Frequency-Shift Keying)調變。如果使用頻 率調變設計’則可以將資訊以所選擇頻率對編碼,或以頻 率之較大集合、即多於兩個頻率之集合編碼。應為明顯, 以上說明之原則可以應用至其他調變設計,例如使用其他 信號特徵將資訊編碼,其包括但並不受限於載體頻率之相 位或振幅。 圖3B為說明在圖1中IBS數據機操作之流程圖。 在方塊301中,IBS數據機4嘗試辨識語音編碼器目前 所使用之語音編碼演算法。如果在菱形302中辨識出此語 音編碼演算法,則在方塊303A中,IBS數據機4根據此辨 識,在第一調變設計與第二回復調變設計之間選擇。否則, 在方塊303B中,IBS數據機4使用第一調變設計調變此數 位位元流之最初部份,以產生音訊信號,其對於不同位元 1357741 值具有不同音訊音調。其中,選擇音訊音調,而由此音訊 編碼器無障礙地通過此無線電信網路之無線語音通道。 在方塊304中,IBS數據機4監視在無線電信網路上之 傳輸。此監視之例將在稍後參考圖4與圖5A_B更詳細討 論。如果在菱形305中之錯誤數目小於預設臨界值,則在 方塊306A中,此IBS數據機4使用第一調變設計調變此數 位位元流之隨後部份。如果在菱形3〇5之錯誤數目達到預 設臨界值,則在方塊306B中,此IBS數據機4使用第二回 復調變設計,調變此數位位元流之隨後部份。如同先前討 淪,相較於第一調變設計,此第二回復調變設計具有以下 至少之一:不同調變頻率、較長符號波形長度、較長同步 型樣長度、或半雙工傳輸而非全雙工傳輸。 如果在方塊3 0 7中將整個位元流饋至語音編碼器,則 此程序在方塊308中結束;否則此程序回復至方塊3〇4中 進行監視。 圖4說明一信號傳送圖,其指出在在圖1中所示IBS 數據機如何判斷何時在調變參數集合之間切換。 在系統200中,一發射IBS數據機根據錯誤確認之計 數’以判斷何時在調變設計之間切換。此錯誤確認 (non-acknowledgement)包括:在此特殊說明中所指出之負面 確認;以及傳輸錯誤之任何其他指出,例如在預定時間期 間中無法接收到正面確認。 例如’此發射IBS數據機使用第一調變設計調變第一 封包’且發射此經調變封包。為了說明目的,假設此經調 13 1357741 變封包被成功地恢復,且在此發射IBS數據機接收到所回 傳之確認。 此發射IB S數據機使用第一調變設計以調變此第二封 包。為了說明目的,假設此經調變封包未被成功地恢復。 此接收IBS數據機發出一負面確認,其如同先前討論為一 種型式錯誤確認。此發射IB S數據機遞增此用於錯誤確認 之計數器。此發射數據機然後使用第一調變設計重新發射 此經調變第二封包。 當接收到隨後之錯誤確認時(再度說明其為負面確認, 或傳輸錯誤之任何其他指出),此在發射IBS上之計數器繼 續遞增。在此計數器之計數到達錯誤之預設臨界值之後, 則宣佈其為不良通道,且使用第二回復調變設計進行隨後 之發射。例如,在此特定說明中,當到達臨界值時仍然嘗 試發射此第二封包,以致於根據第二回復調變設計調變此 第二封包且然後將其發射。應瞭解,可以在計數中使用延 遲,以避免未成熟地切換至第二回復調變設計。 如同先前解釋,此發射IB S數據機亦信號通知此接收 IBS數據機以切換調變設計。較佳使用第二回復調變設計發 出此種信號通知。當然,此意味著’即使當使用第一調變 設計操作此封包資料時,將此接收IBS數據機組態,以此 第二回復調變設計將所發出之通知信號解調變。此發射IBS 數據機可以根據第二回復調變設計等候以起始調變,一直 至此接收IBS數據機正面地指出其已開始以回復模式操作 為止。 1357741 應瞭解,在從伺服器下載至行動客戶之情形中,此伺 服器實施此發射IBS數據機之功能。減的,在從行動客 戶上傳至伺服器之情形中,行動客戶實施發射⑽數據機 之功能。 在一些日寺間期間之後,此發射㈣數據機可以起始切 換回第-調變設計。此t刀換回第—調變設計可以在通過預 定時間期間之後自動發生,或在通過預定時間期間之後但 在此期間僅偵測到少於特定數量錯誤時亦可自動地發生 等。如果此錯誤為無線電信網路媒體暫時問題所產生,則 此使用第一調變設計之傳輸在此時可能相對地並無錯誤。 且如果此荨錯誤疋由於語音編碼器沿著啤叫路徑暫時 使用特定語音編碼演算法所產生,則此使用第一調變設計 之傳輪在此時可能相對地並無錯誤。 .,圖5 A為一信號傳輸圖,其指出在接收側上IBs數據機 如何判斷在何時於調變參數集合之間切換,且以信號通知 圖1中之IBS數據機。 在系統300中,此接收IBS數據機根據:使用循環冗 餘校驗(CRC)錯誤偵測、或一些其他形式錯誤偵測所偵測之 錯誤計數,以判斷何時在調變設計之間切換。 例如,此接收IB S數據機根據第一調變設計接收經調 變之第一封包。此接收IBS數據機然後在此第一封包之恢 復資料上實施循環冗餘校驗(CRC)。為了說明目的,假設在 此CRC期間並未辨識出錯誤,則此接收IBS數據機可以發 出確認成功地恢復此第一封包。 15 1357741 接收IB S數據機然後在根撼坌 牡很據第一調變設計在所調變之 第二封包上實施CRC。為了說明日 々J。兄明目的,假設CRC辨識出 誤’則此接收IB S數據機更新外赵 又柯〇t數崙,且此接收IBS數攄 機會發出負面確認。 當發現隨後之錯誤時,此在發射ms數據機上之叶數 器繼續遞增。在此計數器值達到錯誤之預設臨界值時,宣 佈此為不良通道。應瞭解,可以在計數.中使用延遲,以避 免未成熟地切換至第二回復調變設計。 此接收IBS數據機然後發出請求以切換調變設叶,以 導致此發射調變器使用第二回復調變設計重新發射封包(或 使用第二回復調變設計開始發出尚未傳送之封包)。如同先 前,根據第二回復調變設計將此請求本身調變。當然,此 意味著,即使當使用第一調變設計操作此封包資^,將 此發射IBS數據機組態,將此以第二回復調變設計發出之 通知信號解調變。 圖5B為說明在接收器側上錯誤計數之流程圖。 在流程圖400中,使用前向錯誤修正(FEC)奇偶校驗 (化办)位元,在實施CRC計算之前修正封包資料。應為明 顯,在進行CRC或其他錯誤债測程序之前,可以實施任何 形式之錯誤修正。此錯誤修正可以在標頭、負載(在圖中標 示為 資料)、或兩者上實施。 應瞭解,此等封包典型地被分段(segment)用於傳輸。 因此,對於各錯誤區段(一區段為標頭與對應於封包一部份 負載之組合),可以將計數器遞增一次。 16 1357741
在一例中,此處理器可讀取媒體以特殊指令編碼,而 如果被執行的話會產生特定操作。—個操作包括:使用調 變參數特定集合以處理所接收數位位元流,以產生音訊信 $,其對於不同位元值具有不同音訊音調。其中選擇音訊 音調,以藉由語音編碼器無阻礙地通過無線電信網路之無 線語音通道’以及其,將調變參數特定集合最佳化,用於 複數個語音編碼模式之子集合,而無須預先知道此複數個 語音編碼模式中那—個目前由語音編碼器操作,用於將音 訊k號語音編碼。另一個操作包括:監視在無線電信網路 上之傳輸’以冑識在無線語音通道上傳輸有關之錯誤數量 何時會達到預設臨界值。另一個操作包括:如果此監視指 出錯誤數量達到預言免臨界冑,則從調變參數特定集合切換 至調變參數不同集合。在—些情形中,此在語音編碼模式 中操作語音編碼器所產生之至少一些錯誤並不包括於:與 錯誤傳輸有關而被最佳化調變參數特定集合之子集合中。 可以設計調變參數,不同集合’用於較調變參數特定集 合更廣泛之相容,以及其中調變參數不同集合未以語音編 石馬模式該子集合巾最佳化及/或m音編碼模式不@子集合 而最佳化。 v 另一個操作可以包括:如果此監視指出錯誤數量達到 預設臨界值,則從使用第一符號型式之編碼移轉至使用第 一符號型式之編碼,此第二符號型式之期間大於 型式之期間。 、付現 固操作可以包括.如果此監視指出錯誤數量達到 17 1357741 預設臨界值,則從使用第一較高頻率對 第二較低頻率對之編碼,其中,此 ▲’、、移轉至使用 傳輸-起使用。 ·較局頻率對與錯誤. 預二I:操作可以包括:如果此監視指出錯誤數量達到 預^界值’則將第—型樣編碼於音訊信號中。1達 第一型樣提供更多波形資訊給接收器而使用於辨識^此 此波形資訊多於在辨識錯誤傳輸^ _ Μ, 第二型樣所提供者。 於θ唬中之 另-個操作可以包括:如果此監 預設臨界值’則從使用第一符號型式之編碼移轉 ::唬型式之編碼’此第二符號型式之期間大於第一 ^•式之期間;從使用第一頻率 ' 第二媚歪隹人 Ml之編媽移轉至使用不同 中,盆中, 樣、·扁碼於此音訊信號 ,、 第一型樣提供更多波形資訊給接收哭而使用 於辨識符號,此浊报眘邻夕认士 安叹„。而使用 立m 士 皮开/貝訊夕於在辨識錯誤傳輸之前編碼於 θ 5fU^虎中之第二型樣所提供者。 預心界作可以包括:如果此監視指出錯誤數量達到 二界值’則從全雙工傳輸模式切換至半雙工傳輸模式。 個操作可以包括:計算此錯誤確認之數目,复中 切換是根據該計數之數目。 、 傳輸另知作可以包括:處理由接收端點所產生之信號 刖中,該切換是依據該信號傳輸。 使用程序,序之-步驟包括: /數特疋集合以處理所接虬數位位元流,以產生 18 1357741 音訊信號,其對於不同位元值具有不同音訊音調。其中選 擇音訊音調’以藉由語音編碼器無阻礙地通職線電信網 路之無線語音通道,其中將調變參數特定集合最佳化,用 於複數個語音編碼模式之子集合,而無須預先知道此複數 個語音編碼模式中那一::個目前由語音編碼器操作,用於將 音訊信號語音編石馬。此程序之另—步驟包括來自解調變端 點之用於傳輸之回授實際錯誤資訊。此程序之另一步驟包 括,當此回授錯誤資訊指出回授錯誤數目到達臨界值時, 從調變參數特定集合切換至調變參數不同集合。在一些情 形中,在匕調變參數不同集合未以語音編碼模式之該子集^ 最佳化、及/或以語音編碼模式不同子集合最佳化。 此程序中之另-步驟包括:當此回授錯誤資訊指出錯 誤數量達到預設臨界值時,從使用第—符號型式之編石馬移 轉至使用第二符號型式之編瑪,&第二符號型式之期間大 於第一符號型式之期間。 此程序中之另-步驟包括:當此回授錯誤資訊指出錯 誤數量達到預設臨界值時,則從使用第一較高頻率集合之 編碼移轉至使用第二較低頻率集合之編碼,其中,此第一 較向頻率集合與錯誤傳輸一起使用。 。此程序中之另-步'驟包括,將第—型樣編碼於音訊信 號中,其中,以-型樣提供更多波形資訊給接收器而使 用於辨識符號’此波形資訊多於在到達預設臨界值之前編 碼於音訊信號中之第二型樣所提供者。 在另-例中,此處理器可讀取媒體以特殊指令編碼, 19 1357741 而如果被執行的話會產生特定操作。—個操作包括:判斷 此語音編碼器目前是否正在複數個語音編碼模式之一或一 些上操作。另-個操作包括··使用調變參數特定集合以處 理所接收數位位元流,以產生音訊信號,其對於不同位元 值具有不同音訊音調。纟中選擇音訊音調,以藉由扭音編 碼器無阻礙地通過無線電信網路之無線語音通道;其中, :果此判斷指出此語音編碼器目前正在複數個語音編碼模 :大之特定一或一些上操作’則此調變參數特定集合具有參 數之第一集合,以及否則I中μ 占幻此調邊參數特定集合具有參 之不同的第二集合。另一個操作包括:監視在無線電信 、㈣上之傳輸,以辨識與在無線語音通道上傳輸有關之錯 误數量何時到達預設臨界值。另一 i04t山* 1值$個刼作包括,如果此監 視Γ:誤數量到達預設臨界值’則調整此所接收數位位 兀流之處理。 臨二::作^括:如果此監視指出錯誤數量到達預設 ,"制弟付號型式之編碼移轉至使 型式之編碼,《二符號型式之期間大於第一符號= 期間。 、 另一個操作包括··如果此監視指出錯誤數量到 臨界值,則從使用第-較高頻率集合之編碼移轉至使用第又 一較低頻率集合之編碼。 :-個操作包括:如果此監視指出錯誤數量到達預設 L界值’則將第一型樣編碼於音訊信號中,其 型樣提供更多波形資來必技必wcr 接收㈣使用於辨識符號,此波 20 1357741 形資訊多於在辨識錯誤值於 、專輸之用】編碼於音訊信號中之第二 位元長度所提供者。 另一個操作包括.斗μ .什數錯誤確認之數目,或處理由接 收端點所產生之信號值彳其 ^ 專运’其中該調整是根據該計數或該 信號傳送。 對於熟習此技術人士為明翻 士马明顯,可以對以上說明實施例 之細節作許多改變,而 不a偏離本發明之原則。因此,本 發明之範圍應僅由以下中請專利範圍所決定。 以上所討論大部份設備包括硬體與有關軟體。例如並 型的導航裝置可能包括:_ 、 或更夕處理器與在此等處理器 上可執行軟體,以執行所% ° 5月知作。在此以其通常被瞭解 思義使用“軟體”此名啕, 〇1其心程式或常式(次常式、物件、 插入件等),以及由機 k ^ 及恩理态可使用之資料。如同所熟 知,電腦程式通常包括儲存 … 子於機盗可讀取或電腦可讀取儲 存媒體中。本發明之一此訾 二貫施例可以包括:儲存於機器可 彳 、體例如數位記憶體中之可執行程 羞“ ” s '、在任何特定實施例中須要傳統意 以佶爾认 各種處理盗不論嵌入式或其他,可 以使用於設備像是在此所說明之組件中。 用於儲存軟體之記憶體再度 丹又馮所熟知。在一些實施例 τ 與—給定處理器有關之記情妒β她— ^ ^ ^ 隐體疋儲存於與處理器相同 之只體裝置中(而為“機上,,
m Β η 隐體),例如,RAM 或 FLASH 。己隐體疋5又置在積體電路微 愔栌4 k, 裔寺中。在其他例中’記 匕體包括獨立裝置’例如外 文蜂機、儲存體陣列、或可 21 1357741 樓式FLASH(鑰匙環)。在此等情形+,當此兩個例如藉由 輸入/輸出4、網路連接等而操作地連接在-、或彼此通 訊時,此記憶體成為與數位處理器‘‘ , 器可以讀取儲存於記憶體中之槽案。有關記憶體可以= 設什(ROM)或藉由允許設^或不設^而為“唯讀,,。其他之 例可以包括但並不党限於w〇RM、EpR〇M、EE叹、 FLASH等。此等技術通常於固態半導體裝置中執行。其他 記憶體可以包括移動部份,例如傳説之旋轉硬碟機。;斤 此等記憶體為“機器可讀取,,或“電腦可讀取”,且可以 被使用以儲存可勃;杜人 “ 執仃晶令,以執行在此所說明之功能。 軟體產A i指一種記憶體装置,其中以 =儲存-系列可執行指令,以致於具有對軟體產品:
Si:,器或處理器可以執行指令,以實施由‘ 二耘序’有時使用軟體產品以分佈軟體。任何 記憶體,包括但並不受限於以上所心 軟體產品。這即是此亦為已知軟胃ΰΓ、 經由電子傳輸(“下#”)品八处私 欺體可以 或接收端、或在發:種情形中,在發射蠕 產品。 射^與接收端典型地會有相對應的軟體 以上已經在較佳實施例中描寫與說 應為明顯,可以攸 放θI原理, 原則,而這此㈣而不會偏離這些 範圍中。與變化是在以下申請專利範圍之精神與 22 1357741 【圖式簡單說明】 圖1為說明用於無線語音呼叫之典型語音通路之簡化 方塊圖; 圖2為§兒明具有嵌入式行動雷咕由土丄/ w丁動奄δ若模組之車輛中系統 (IVS)之簡化方塊圖; 圖3 Α說明被組態在調轡失鉍 门殳參數集合之間切換之頻帶内信 號傳輸(IBS)數據機; 圖3 B為說明在圖1中了 r q 數據機操作之流程圖; 圖4為一信號傳輸圖,i 何判齡七„士 + 、曰出在圖1中IBS數據機如 何時在調變參數集合之間切換; 圖5A為一信號傳輸圖,其 如何判齡六γ 士 出在接收側上IBS數據機 W斷在何時於調變參數集合 圖1中之_數據機;以及之間切換,且以信號通知 圖為說明在接收側上 、寸數之流程圖。 鲁 2 主要元件符號說明 4 5 -9 1〇 13 15 數位位元流 IBS數據機 語音編碼器 調變參數集合 音訊ρ號 無線語音通道 軟體 控制信號 23 17 1357741 19 100 〜300 301 〜308 400 錯誤監視資訊 系統 程序 流程圖
24

Claims (1)

  1. 丄乃//41 七、申請專利範圍: 1. 一種以指令編碼之處 導致: <處理裔可讀取媒體,其如果執行係 之數位位元流以 不同音訊音調, 以無阻礙地通過 該特定調變參數 合最佳化而無須 前係由該語音編 一關聯於該無線 預設臨界值;以 使用-特定調變參數集合處理—接收 產生-音訊信號’其對於不同位元值具有 其中該音訊音調係由-語音編碼器所選擇 -無線電信網路之—無線語音通道,其中 集合係在十對複數個言吾音編碼模 < 之集 預先知道該複數個語|編碼模式之何者目、 碼器操作以語音編碼該音訊信號; 監視該無線電信網路上之傳輸以辨識 語音通道上之傳輸的錯誤數量何時到達一 及 如果該監視指出該錯誤數量到達該預設臨界值,則從 〜特定調變參數集合切換至—不同之調變參數集合。 2·如申凊專利範圍第1項之處理器可讀取媒體,其中哼 :同調變減#合料對較該特定㈣參㈣合更為廣泛 :相容性而設計’並且其中該不同調變參數集合係未以語 曰編媽模式之該子集合而最 模式子集合而最佳化。 及/或以-不同之語音編碼 3.如中凊專利範圍第i項之處理器可讀取媒體,其中如 果執行該等指令係導致: 使用—第一符號型式編碼移轉至使用一具有較第一符 b果該監視指出該錯誤數量到達該預設臨界值,則從 號型 25 式之期間大的第二符號型式編碼β 4.如申請專利範圍第(項之處理器可讀取媒體 果執行該等指令係導致: 、〒如 使用"視指出該錯誤數量到達該預設臨界值,則從 蝙碼T —較高頻率對編碼移轉至使用-第二較低頻率對 用 中忒第一較南頻率對係與該等錯誤之傳輸一起使 果彡^專利耗圍第1項之處理器可讀取媒體,其中如 果執行該等指令係導致: ^如 如果該監視指出該錯誤數量到達該預設臨界值,則將 ^^樣編碼於該音訊信號中,其中,在該錯誤傳輸確 型樣比—編碼於該音訊信號中之第二型樣提供 更夕波形資訊給該接收器以使用於辨識一符號。 果/·如中請專利範圍第1項之處理器可讀取媒體,其中如 果執行該等指令係導致: 如果該監視指出該錯誤數量到達該預設臨界值,則從 ^H號型式之編碼移轉至使用—具有比該第一符 就型式較大期間的第-斿 弟一4號型式之編碼;從使用一第一頻 木合之編碼移轉至使用一第二不同頻率集合之編碼;以 2ϋ樣編碼於該音訊信號t,其中,在該錯誤傳 輸確認前該第一型樣比—維E 編碼於該音訊信號中之第二型樣 /、更多波形資訊給該接收器以使用於辨識—符號。 7·如申凊專利範圍第i項之處理器可讀取媒體,其中如 26 丄3)7741 果執行該等指令係導致: 如果該監視指出該錯誤數量到達該預設臨界值,則從 王雙工傳輸模式切換至一半雙工傳輸模式。 々8.如申吻專利圍第1項之處理器可讀取媒體,其中該 =錯誤之至少某些係起因於該語音編碼器操作於一並不包 3於该特定調變參數集合關聯於該錯誤傳輸而最佳化之該 子集合中的語音編碼模式。 9. 如申請專利範圍第1項之處理器可讀取媒體,其中如 果執行該等指令會導致: 汁數錯誤確認之數目,其中該切換根據該計數。 10. 如申請專利範圍第丨項之處理器可讀取媒體,其中 如果執行該等指令係導致: 處理由一接收端點所產生之信號,其中該切換係根據 該信號。 11 · 一種方法,其包:括: i 使用一特定調變參數集合處理一所接收數位位元流, 、產生對於不同位元值具有不同音訊音調之音訊信號, 其中,該些音訊音調係由一語音編碼器選擇以無阻礙地通 過無線電信網路之一無線語音通道,其中該特定調變參 數集合係針對複數個語音編碼模式之一子集合最佳化,而 無須預先知道該複數個語音編碼模式之何者目前係由該語 音編碼器操作以語音編碼該音訊信號; 回授來自一解調端點之實際錯誤資訊以用於該傳輸; 以及 27 1357741 田遠回授錯誤資訊指出該錯 ,目,丨—a為數里到達一預設臨界值 時則仗该特定調變參數集合 刀換至一不同調變參數集合。 12. 如申請專利範圍第1〗 法 批隹巧〈万法’其中該不同調變參 數集&係未以語音編碼模式之該子 音編竭模式之-不同子集合最佳化^ 、及/或以語 13. 如申請專利範圍第〜之方法,其更包括: § δ亥回授錯誤資訊指出錯古^ ^ ^ ^ ^ ^ ^ ^ ^ ^ S "吳到達該預設臨界值時,則 從使用一弟一符號型式之編 之編瑪,該第二符號型式之:: 符號型式 i式之期間大於該第-符號型式之期 間0 Η‘如申請專利範圍第"項之方法,盆更包括. 當該回授錯誤資訊指出錯誤到達一預設臨界值時,則 從使用一第一較高頻率集合之編碼移轉至使 較 頻率集合之編碼; 罘&低 其中該第一較高頻率隹人总 貝+杲0係與該等錯誤傳輪一起使 用。 15.如申請專利範圍第μ之方法,其更包括: 將-第-型樣編瑪於該音訊信號中,其中在到達該預 設臨界值前該第-型樣比—編碼於該音訊信號中之第 樣提供更多波形資訊給該接收器以使用於辨識一符號。 丨6.-種以指令編碼之處理器可讀取媒體,如果執 等指令係導致: ^ 判斷1音=器是否目前正在操作複數個語音編碼 杈式之一特定一個或一些語音編碼模式; 28 1357741 使用一特定調變參數集合處理—所接故數位位元流以 產生一對於不同位元值:具有不同音訊音調之音訊信號,其 t,該音訊音調係由該語音編碼器選擇以無阻礙地通過一 無線電信網路之一無線語音通道; 其中如果該判斷指出該語音編碼器目前正在操作複數 個語音編碼模式之該特定一個或一些語音編碼模式,則該 特定調變參數集合具一第一參數集合’以及否則其中該特 定調變參數集合具有一第三不_參數集合; =視在該無線電信網路上之傳輪,以辨識與該無線語 上傳輸有關之—錯誤數量何時會料—預定臨界 ιΜ~,以及^ 整出該錯誤數量到達該預定臨界值,則調 么该所接收數位位元流之處理。 如申請專利範圍第16項之處理器可讀取媒體,其中 如果執行該等指令係導致: 使用視指出該錯誤數量到達該預設臨界值,則從 轳心—符號型式之編碼移轉至使用-具有較該第-符 “之期間大的第二符號型式之編碼。 如果L8.如申請專利範圍第16項之處理器可讀取媒體,其中 如果執行該等指令係導致: 使用監視指出該錯誤數量到達該預設臨界值,則從 率隼入—較高頻率集合之編碼移轉至使用-第二較低頻 手票合之編碼。 19.如申請專利範圍第16項之處理器可讀取媒體,其中 29 丄二丄 如果執行該等指令係導致· 第二視扣出該錯誤數量到達該預設臨界值,將- 前4 :音訊信號中…,在該錯誤傳輸確認 月j。亥第一坦樣比一編碼 夕 、通日訊仏唬中之弟二型樣提供更 夕/形=、矾給該接收器以使用於辨識一符號。 20.如申請專利範圍第16項之處理器可讀取媒體,其中 如果執行該等指令係導致:
    计數未確認之一數目’或處理由一接收端點所產生之 信號’其中該調整係根據該計數或該信號。 八、圖式: (如次頁)
    30
TW099136455A 2009-11-23 2010-10-26 Adaptive data transmission for a digital in-band m TWI357741B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26367209P 2009-11-23 2009-11-23
US12/904,093 US8249865B2 (en) 2009-11-23 2010-10-13 Adaptive data transmission for a digital in-band modem operating over a voice channel

Publications (2)

Publication Number Publication Date
TW201129013A TW201129013A (en) 2011-08-16
TWI357741B true TWI357741B (en) 2012-02-01

Family

ID=43499995

Family Applications (1)

Application Number Title Priority Date Filing Date
TW099136455A TWI357741B (en) 2009-11-23 2010-10-26 Adaptive data transmission for a digital in-band m

Country Status (11)

Country Link
US (1) US8249865B2 (zh)
EP (1) EP2504942B1 (zh)
JP (1) JP5709887B2 (zh)
KR (1) KR20120101082A (zh)
CN (1) CN102792625B (zh)
AU (1) AU2010322322B2 (zh)
BR (1) BR112012009888A2 (zh)
CA (1) CA2778056A1 (zh)
MX (1) MX2012005702A (zh)
TW (1) TWI357741B (zh)
WO (1) WO2011062715A1 (zh)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8483245B2 (en) * 2010-07-30 2013-07-09 General Motors Llc Multi-tone detection for in-band data modem link establishment in wireless networks
US8848825B2 (en) 2011-09-22 2014-09-30 Airbiquity Inc. Echo cancellation in wireless inband signaling modem
US8995437B2 (en) * 2012-02-22 2015-03-31 Texas Instruments Incorporated Transmission of segmented frames in power line communication
US9337958B2 (en) * 2014-02-21 2016-05-10 Sogics Corporation Limited Data transmissions over a voice channel
CN107736060B (zh) * 2015-06-15 2021-01-08 瑞典爱立信有限公司 可变同步块格式
CN107925524B (zh) * 2015-08-12 2021-12-21 瑞典爱立信有限公司 确定用于无线终端的操作的模式的方法
US9973300B2 (en) * 2016-06-09 2018-05-15 Echelon Corporation Modulation adaption method for multi-mode modems
JP6832794B2 (ja) * 2017-06-05 2021-02-24 ルネサスエレクトロニクス株式会社 無線通信システム
CN108461087B (zh) * 2018-02-07 2020-06-30 河南芯盾网安科技发展有限公司 数字信号穿过声码器的装置及方法
CN109256141B (zh) * 2018-09-13 2023-03-28 北京芯盾集团有限公司 利用语音信道进行数据传输的方法
JP7103197B2 (ja) * 2018-12-14 2022-07-20 トヨタ自動車株式会社 通信システム
US11496970B2 (en) 2019-03-06 2022-11-08 Qualcomm Incorporated Support of high pathloss mode
US11510071B2 (en) 2019-04-17 2022-11-22 Qualcomm Incorporated Beam direction selection for high pathloss mode operations
US11463964B2 (en) 2019-04-17 2022-10-04 Qualcomm Incorporated Communication configuration for high pathloss operations
US11477747B2 (en) 2019-04-17 2022-10-18 Qualcomm Incorporated Synchronization signal periodicity adjustment
US11438808B2 (en) 2019-04-17 2022-09-06 Qualcomm Incorporated Acknowledgment messaging for resource reservations
US11445408B2 (en) 2019-04-17 2022-09-13 Qualcomm Incorporated High pathloss mode multiplexing
US11973548B2 (en) 2022-02-03 2024-04-30 T-Mobile Usa, Inc. Adjusting a configuration of a wireless telecommunication network

Family Cites Families (441)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945944A (en) 1930-12-03 1934-02-06 William W Varney Air conditioning system and apparatus therefor
US3742463A (en) * 1970-03-02 1973-06-26 Nielsen A C Co Data storage and transmission system
US3742197A (en) * 1972-01-14 1973-06-26 Stomberg Carlson Corp Synthesis of digital signals corresponding to selected analog signals
US3984814A (en) * 1974-12-24 1976-10-05 Honeywell Information Systems, Inc. Retry method and apparatus for use in a magnetic recording and reproducing system
US3971888A (en) * 1975-04-02 1976-07-27 Bell Telephone Laboratories, Incorporated Synchronization system for variable length encoded signals
US3985965A (en) * 1975-07-02 1976-10-12 Gte Sylvania Incorporated Digital signal generator
FR2379694A1 (fr) * 1977-02-03 1978-09-01 Schlumberger Prospection Systeme de transmission de donnees pour puits de forage
US4158748A (en) * 1977-06-27 1979-06-19 Motorola, Inc. Apparatus for digital data synchronization
JPS54143009A (en) * 1978-04-28 1979-11-07 Kokusai Denshin Denwa Co Ltd Space diversity system for tdma communication system
US4310722A (en) * 1978-11-09 1982-01-12 Bell Telephone Laboratories, Incorporated Mobile radiotelephone station two-way ranging system
JPS5681900A (en) * 1979-12-10 1981-07-04 Nippon Electric Co Voice synthesizer
US4368987A (en) * 1980-06-25 1983-01-18 The United States Of America As Represented By The Secretary Of The Navy Conjugate-phase, remote-clock synchronizer
WO1982001273A1 (en) * 1980-09-26 1982-04-15 B Loefberg Method for processing an information signal and means for carrying out the method
US4539557A (en) * 1981-10-19 1985-09-03 Sunderland & South Shields Water Company Combined communication, security and alarm radio system
JPS58111784A (ja) * 1981-12-25 1983-07-02 Nec Corp 時刻の遠隔較正方式
US4494211A (en) * 1982-11-24 1985-01-15 The United States Of America As Represented By The Secretary Of The Navy Balanced system for ranging and synchronization between satellite pairs
US4641323A (en) * 1983-02-07 1987-02-03 Tsang Chung K Multi-phase PSK demodulator
US4656463A (en) * 1983-04-21 1987-04-07 Intelli-Tech Corporation LIMIS systems, devices and methods
US4599583A (en) * 1983-11-19 1986-07-08 Fujitsu Limited Mixed dual frequency generating system
US4494114B1 (en) * 1983-12-05 1996-10-15 Int Electronic Tech Security arrangement for and method of rendering microprocessor-controlled electronic equipment inoperative after occurrence of disabling event
US4754255A (en) * 1984-03-12 1988-06-28 Sanders Rudy T User identifying vehicle control and security device
US4675656A (en) * 1984-03-16 1987-06-23 Narcisse Bernadine O Out-of-range personnel monitor and alarm
GB2161676B (en) * 1984-07-11 1988-05-25 Stc Plc Data transmission system
US4598272A (en) * 1984-08-06 1986-07-01 Cox Randall P Electronic monitoring apparatus
US5036537A (en) * 1984-11-19 1991-07-30 General Instrument Corp. Geographic black-out method for direct broadcast satellite system
US4685131A (en) * 1985-03-11 1987-08-04 General Instrument Corp. Program blocking method for use in direct broadcast satellite system
US4675863A (en) * 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US4651157A (en) * 1985-05-07 1987-03-17 Mets, Inc. Security monitoring and tracking system
US4630301B1 (en) * 1985-06-04 1999-09-07 Well Made Toy Mfg Co Voice activated echo generator
DE3683847D1 (de) * 1985-11-27 1992-03-19 Univ Boston System zur musterkodierung.
CA1277400C (en) 1986-04-09 1990-12-04 Uri Rapoport Anti-theft and locating system
US4776003A (en) * 1986-10-01 1988-10-04 Harris Arlene J Cellular mobile radio credit card system
US4750197A (en) * 1986-11-10 1988-06-07 Denekamp Mark L Integrated cargo security system
US5227776A (en) * 1987-03-18 1993-07-13 Starefoss Carl E Combined alarm, security and rescue system
US4860336A (en) * 1987-06-02 1989-08-22 Motorola, Inc. Radiotelephone credit card data communications
US4831647A (en) * 1987-06-02 1989-05-16 Motorola, Inc. Radiotelephone credit card data communications
JPH0828691B2 (ja) * 1988-03-14 1996-03-21 富士通株式会社 フレーム同期方式
US4926444A (en) * 1988-04-29 1990-05-15 Scientific-Atlanta, Inc. Data transmission method and apparatus by period shift keying (TSK)
EP0342638B1 (en) * 1988-05-17 1995-04-26 Casio Computer Company Limited Radio paging communication system
GB8814456D0 (en) 1988-06-17 1988-08-17 Cleveland Innovative Technolog Road vehicle locating system
US4918425A (en) * 1988-07-25 1990-04-17 Daniel E. Ely Monitoring and locating system for an object attached to a transponder monitored by a base station having an associated ID code
US4918717A (en) * 1988-08-23 1990-04-17 Knight Protective Industries Alarm system having bidirectional communication with secured area
CA1317638C (en) * 1988-09-09 1993-05-11 Stephen B. Meads Mobile pay telephone system
US4914651A (en) * 1988-09-20 1990-04-03 Cellular Data, Inc. Cellular data system
US4977609A (en) * 1988-10-28 1990-12-11 Gte Cellular Communications Corporation Interface circuit for telecommunications devices
US4965821A (en) * 1988-12-23 1990-10-23 Gte Mobilnet Incorporated Cellular mobile radiotelephone-based system for rental of mobile equipment
US5726984A (en) 1989-01-31 1998-03-10 Norand Corporation Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
US5191611A (en) * 1989-04-03 1993-03-02 Lang Gerald S Method and apparatus for protecting material on storage media and for transferring material on storage media to various recipients
US5428636A (en) 1993-05-03 1995-06-27 Norand Corporation Radio frequency local area network
US5214556A (en) * 1989-04-14 1993-05-25 Kilbel Joseph J Video cassette recorder protection system
IL93444A (en) * 1989-04-27 1994-05-30 Motorola Inc Method and unit for communication with communication systems with different operating modes
US5081667A (en) * 1989-05-01 1992-01-14 Clifford Electronics, Inc. System for integrating a cellular telephone with a vehicle security system
US5668803A (en) 1989-06-29 1997-09-16 Symbol Technologies, Inc. Protocol for packet data communication system
WO1991007044A1 (en) 1989-10-31 1991-05-16 Intelligence Technology Corporation Data and voice transmission over a cellular telephone system
US4941155A (en) * 1989-11-16 1990-07-10 Bell Communications Research, Inc. Method and circuitry for symbol timing and frequency offset estimation in time division multiple access radio systems
US5025455A (en) * 1989-11-30 1991-06-18 The United States Of America As Represented By The Administer, National Aeronautics And Space Administration Phase ambiguity resolution for offset QPSK modulation systems
US5301353A (en) * 1990-02-12 1994-04-05 Motorola, Inc. Communication system and apparatus
GB2241623A (en) 1990-02-28 1991-09-04 Philips Electronic Associated Vehicle location system
US5014344A (en) * 1990-03-19 1991-05-07 Motorola, Inc. Method for synchronizing the transmissions in a simulcast transmission system
US5127041A (en) 1990-06-01 1992-06-30 Spectrum Information Technologies, Inc. System and method for interfacing computers to diverse telephone networks
US5528232A (en) 1990-06-15 1996-06-18 Savi Technology, Inc. Method and apparatus for locating items
US5119504A (en) * 1990-07-19 1992-06-02 Motorola, Inc. Position aided subscriber unit for a satellite cellular system
US5043736B1 (en) * 1990-07-27 1994-09-06 Cae Link Corp Cellular position location system
US5134644A (en) * 1990-08-17 1992-07-28 Senses International Data communication device
FR2666946B1 (fr) * 1990-09-17 1992-12-04 Inst Francais Du Petrole Methode et dispositif pour synchroniser sur un evenement exterieur, l'echantillonnage de signaux de mesure par un ensemble de numerisation du type a sur-echantillonnage.
US5201071A (en) * 1990-09-26 1993-04-06 Rockwell International Corporation Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power
US5365577A (en) 1990-09-27 1994-11-15 Radish Communications Systems, Inc. Telecommunication display system
EP0556277A1 (en) * 1990-11-06 1993-08-25 Westinghouse Electric Corporation Dual mode electronic identification system
US5218618A (en) * 1990-11-07 1993-06-08 Hughes Aircraft Company Cellular telephone service using spread spectrum transmission
US5212831A (en) * 1990-11-28 1993-05-18 Bell Communications Research, Inc. Method and apparatus for autonomous adaptive frequency assignment in TDMA portable radio systems
DE4038430A1 (de) 1990-12-01 1992-06-04 Basf Ag Herbizide n-((1,3,5-triazin-2-yl)-aminocarbonyl) benzolsulfonamide
US5305384A (en) * 1990-12-04 1994-04-19 Chips International, Inc. Apparatus, system and method for transmitting secure signals over narrow spaced channels
US5734981A (en) 1991-01-17 1998-03-31 Highwaymaster Communications, Inc. Method and apparatus for call delivery to a mobile unit
US5155689A (en) 1991-01-17 1992-10-13 By-Word Technologies, Inc. Vehicle locating and communicating method and apparatus
CA2063901C (en) 1991-03-25 2002-08-13 Arunas G. Slekys Cellular data overlay system
MX9201267A (es) 1991-03-29 1992-10-01 Ericsson Telefon Ab L M Trazado de ruta de servicio de comunicacion auxiliar.
US5119403A (en) * 1991-04-09 1992-06-02 Racal Data Communications Inc. Superframes
US5225842A (en) 1991-05-09 1993-07-06 Navsys Corporation Vehicle tracking system employing global positioning system (gps) satellites
FI96564C (fi) 1991-07-08 1996-07-10 Nokia Mobile Phones Ltd Yksityispuhelinnumero solukkopuhelinjärjestelmässä
US5347272A (en) 1991-09-13 1994-09-13 Fuji Xerox Co., Ltd. System for determining communication routes in a network
US5208446A (en) * 1991-09-19 1993-05-04 Martinez Jerry R Method and apparatus for validating credit information during home delivery of order
US5390216A (en) 1991-11-02 1995-02-14 Robert Bosch Gmbh Synchronization method for a mobile radiotelephone
JP2500162B2 (ja) 1991-11-11 1996-05-29 住友金属工業株式会社 耐食性に優れた高強度二相ステンレス鋼
FR2684507B1 (fr) 1991-11-29 1994-09-30 Sagem Modem semi-duplex pour reseau de radiotelephones gsm.
US5379224A (en) 1991-11-29 1995-01-03 Navsys Corporation GPS tracking system
US6266008B1 (en) 1991-12-10 2001-07-24 Charles D. Huston System and method for determining freight container locations
GB2262630B (en) 1991-12-14 1996-04-10 Technophone Ltd Apparatus with menu-selected functions
US5546445A (en) 1991-12-26 1996-08-13 Dennison; Everett Cellular telephone system that uses position of a mobile unit to make call management decisions
US5235633A (en) * 1991-12-26 1993-08-10 Everett Dennison Cellular telephone system that uses position of a mobile unit to make call management decisions
US5539810A (en) 1992-01-27 1996-07-23 Highwaymaster Communications, Inc. Data messaging in a communications network
US5334974A (en) 1992-02-06 1994-08-02 Simms James R Personal security system
US5203012A (en) * 1992-02-10 1993-04-13 Motorola, Inc. Method and apparatus for optimum channel assignment
CA2089123A1 (en) 1992-03-04 1993-09-05 Robert Edwin Penny, Jr. Position locating transceiver
US5245634A (en) * 1992-03-23 1993-09-14 Motorola, Inc. Base-site synchronization in a communication system
US5282204A (en) * 1992-04-13 1994-01-25 Racotek, Inc. Apparatus and method for overlaying data on trunked radio
US5223844B1 (en) * 1992-04-17 2000-01-25 Auto Trac Inc Vehicle tracking and security system
US5410541A (en) 1992-05-04 1995-04-25 Ivon International, Inc. System for simultaneous analog and digital communications over an analog channel
US5396653A (en) 1992-06-05 1995-03-07 Nokia Mobile Phones Ltd. Cellular telephone signalling circuit operable with different cellular telephone systems
GB9215662D0 (en) 1992-07-23 1992-09-09 Workspace Technologies Limited Conference assisting apparatus
AU670955B2 (en) 1992-08-04 1996-08-08 Koninklijke Philips Electronics N.V. Mobile radio system
FI95983C (fi) 1992-08-17 1996-04-10 Nokia Telecommunications Oy Järjestely telekopiosiirtoa varten digitaalisessa solukkoradioverkossa
US5289372A (en) * 1992-08-18 1994-02-22 Loral Aerospace Corp. Global equipment tracking system
JP2805565B2 (ja) 1992-09-21 1998-09-30 エヌ・ティ・ティ移動通信網株式会社 移動局における制御チャネル選択方法
US5410739A (en) 1992-09-29 1995-04-25 The Titan Corporation Variable data message communication over voice communication channel
US5418537A (en) 1992-11-18 1995-05-23 Trimble Navigation, Ltd. Location of missing vehicles
US5726893A (en) 1992-12-17 1998-03-10 Stanford Telecommunications, Inc. Cellular telephone with voice-in-data modem
US5365450A (en) 1992-12-17 1994-11-15 Stanford Telecommunications, Inc. Hybrid GPS/data line unit for rapid, precise, and robust position determination
SG45250A1 (en) 1993-01-04 1998-01-16 Intel Corp Simultaneous transfer of control information with voice and data over a public switched telephone network line
US5333175A (en) 1993-01-28 1994-07-26 Bell Communications Research, Inc. Method and apparatus for dynamic power control in TDMA portable radio systems
US5331635A (en) * 1993-02-12 1994-07-19 Fuji Xerox Co., Ltd. Network system having function of updating routing information
US5587715A (en) 1993-03-19 1996-12-24 Gps Mobile, Inc. Method and apparatus for tracking a moving object
AU6279794A (en) 1993-04-01 1994-10-24 Bruno Robert System for selectively positioning and tracking a movable object or individual
US5420592A (en) 1993-04-05 1995-05-30 Radix Technologies, Inc. Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote mobile position and velocity determinations
US5509035A (en) 1993-04-14 1996-04-16 Qualcomm Incorporated Mobile station operating in an analog mode and for subsequent handoff to another system
US5510797A (en) 1993-04-15 1996-04-23 Trimble Navigation Limited Provision of SPS timing signals
US5388247A (en) 1993-05-14 1995-02-07 Digital Equipment Corporation History buffer control to reduce unnecessary allocations in a memory stream buffer
US5673305A (en) 1993-05-14 1997-09-30 Worldwide Notification Systems, Inc. Apparatus and method for tracking and reporting the location of a motor vehicle
CA2141613A1 (en) 1993-06-07 1994-12-22 Robert A. Stillman Network link controller
WO1994029824A1 (en) 1993-06-10 1994-12-22 Direkt, Inc. Preselected distance monitoring and locating system
US5389934A (en) 1993-06-21 1995-02-14 The Business Edge Group, Inc. Portable locating system
DE69434132T2 (de) 1993-06-25 2005-03-17 Matsushita Electric Industrial Co., Ltd., Kadoma Verfahren und Einrichtung zur Signalformung von Paketdaten
JP2518156B2 (ja) 1993-07-19 1996-07-24 日本電気株式会社 無線通信システムのチャネル割当方式
US5363376A (en) 1993-07-30 1994-11-08 Bell Communications Research, Inc. Method and apparatus for synchronizing timing among radio ports in wireless communications systems
EP0637152A1 (en) 1993-07-30 1995-02-01 International Business Machines Corporation Method and apparatus to speed up the path selection in a packet switching network
US5363375A (en) 1993-07-30 1994-11-08 Bell Communications Research, Inc. Method and apparatus for synchronizing timing among radio ports in wireless communications systems using hierarchical scheme
US5479482A (en) 1993-08-30 1995-12-26 At&T Corp. Cellular terminal for providing public emergency call location information
US5388147A (en) 1993-08-30 1995-02-07 At&T Corp. Cellular telecommunication switching system for providing public emergency call location information
JPH08505747A (ja) 1993-08-31 1996-06-18 エリクソン ジーイー モービル コミュニケーションズ インコーポレイテッド セルラ移動機端末内でのメッセージ格納装置
US5497149A (en) 1993-09-02 1996-03-05 Fast; Ray Global security system
US5438337A (en) 1993-09-24 1995-08-01 Northrop Grumman Corporation Navigation system using re-transmitted GPS
US5440491A (en) 1993-10-19 1995-08-08 Kabushiki Kaisha Toshiba Pseudo GPS signal transmitting system in a base station
US5544222A (en) 1993-11-12 1996-08-06 Pacific Communication Sciences, Inc. Cellular digtial packet data mobile data base station
US5479475A (en) 1993-11-15 1995-12-26 Qualcomm Incorporated Method and system for providing communication between standard terminal equipment using a remote communication unit
US5557254A (en) 1993-11-16 1996-09-17 Mobile Security Communications, Inc. Programmable vehicle monitoring and security system having multiple access verification devices
US5519403A (en) 1993-11-29 1996-05-21 Motorola, Inc. Global positioning system communications multi-interface
JP3107691B2 (ja) 1993-12-03 2000-11-13 株式会社東芝 半導体記憶装置及びその製造方法
US5892454A (en) 1993-12-21 1999-04-06 Trimble Navigation Ltd. Hybrid monitoring of location of a site confinee
US6181253B1 (en) 1993-12-21 2001-01-30 Trimble Navigation Limited Flexible monitoring of location and motion
US5479480A (en) 1993-12-30 1995-12-26 At&T Corp. Dual mode cellular modem
US5581599A (en) 1993-12-30 1996-12-03 Northern Telecom Limited Cordless telephone terminal
US5555286A (en) 1994-01-31 1996-09-10 Tendler Technologies, Inc. Cellular phone based automatic emergency vessel/vehicle location system
US5459469A (en) 1994-02-04 1995-10-17 Stanford Telecommunications, Inc. Air traffic surveillance and communication system
CN1126539A (zh) 1994-02-07 1996-07-10 哈罗德Ii·佩斯 移动位置报告装置及方法
US5422816A (en) 1994-02-22 1995-06-06 Trimble Navigation Limited Portable personal navigation tracking system
US5483549A (en) 1994-03-04 1996-01-09 Stanford Telecommunications, Inc. Receiver having for charge-coupled-device based receiver signal processing
DE69532572T2 (de) 1994-03-11 2004-08-05 Ntt Docomo, Inc. Zeitdiversity-kommunikationsanordnung
US5577105A (en) 1994-03-11 1996-11-19 U.S. Robotics, Inc. Telephone call routing and switching techniques for data communications
US5381129A (en) 1994-03-23 1995-01-10 Radio Systems, Inc. Wireless pet containment system
US5450130A (en) 1994-03-30 1995-09-12 Radius Inc. Method and system for cell based image data compression
US5625668A (en) 1994-04-12 1997-04-29 Trimble Navigation Limited Position reporting cellular telephone
US5590396A (en) 1994-04-20 1996-12-31 Ericsson Inc. Method and apparatus for a deep-sleep mode in a digital cellular communication system
US5504491A (en) 1994-04-25 1996-04-02 Chapman; Robert W. Global status and position reporting system
ES2101629B1 (es) 1994-04-29 1998-03-01 Alcatel Standard Electrica Terminal celular fijo.
US5461390A (en) 1994-05-27 1995-10-24 At&T Ipm Corp. Locator device useful for house arrest and stalker detection
GB2290005B (en) 1994-05-28 1998-09-09 Motorola Ltd Communications system
JPH088983A (ja) 1994-06-15 1996-01-12 Fujitsu Ltd 装置間ディジタル信号伝送方法並びにディジタル信号送受信装置,ディジタル信号送信装置及びディジタル信号受信装置
US5543789A (en) 1994-06-24 1996-08-06 Shields Enterprises, Inc. Computerized navigation system
DE4424412A1 (de) 1994-07-12 1996-01-18 Esg Elektroniksystem Und Logis Funktelekommunikationssystem mit Satelliten-Navigation
US5550551A (en) 1994-07-25 1996-08-27 At&T Corp. Position monitoring system and method
US5619684A (en) 1994-07-25 1997-04-08 International Business Machines Corporation Method and apparatus for consistent user interface in a multiple application personal communications device
US6038310A (en) 1994-08-01 2000-03-14 British Telecommunications Public Limited Company Service node for a telephony network
US5630206A (en) 1994-08-11 1997-05-13 Stanford Telecommunications, Inc. Position enhanced cellular telephone system
US5515043A (en) 1994-08-17 1996-05-07 Berard; Alfredo J. Cellular/GPS system for vehicle tracking
GB9417600D0 (en) 1994-09-01 1994-10-19 British Telecomm Navigation information system
US5565858A (en) 1994-09-14 1996-10-15 Northrop Grumman Corporation Electronic inventory system for stacked containers
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US5732326A (en) 1994-09-30 1998-03-24 Fujitsu Limited Information guiding system and method of preventing borrower of portable terminal unit from forgetting to return it
US5566173A (en) 1994-10-12 1996-10-15 Steinbrecher Corporation Communication system
US6121922A (en) 1994-10-12 2000-09-19 Veridian Erim International, Inc. Tracking system using miniaturized concealable communications module
US5650770A (en) 1994-10-27 1997-07-22 Schlager; Dan Self-locating remote monitoring systems
JP2596388B2 (ja) 1994-10-28 1997-04-02 日本電気株式会社 ディジタルコードレス電話システム
US5594425A (en) 1994-10-31 1997-01-14 Peoplenet, Inc. Locator device
US5786789A (en) 1994-11-14 1998-07-28 Trimble Navigation Limited GPS and cellphone unit having add-on modules
US6269392B1 (en) 1994-11-15 2001-07-31 Christian Cotichini Method and apparatus to monitor and locate an electronic device using a secured intelligent agent
US6300863B1 (en) 1994-11-15 2001-10-09 Absolute Software Corporation Method and apparatus to monitor and locate an electronic device using a secured intelligent agent via a global network
US5913170A (en) 1994-11-16 1999-06-15 Highwaymaster Communications, Inc. Locating system and method using a mobile communications network
US5576716A (en) 1994-12-07 1996-11-19 Sadler; Kermit M. Owner oriented system for locating lost or stolen property
US6226529B1 (en) 1994-12-08 2001-05-01 Itt Manufacturing Enterprises, Inc. System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS)
US5517683A (en) 1995-01-18 1996-05-14 Cycomm Corporation Conformant compact portable cellular phone case system and connector
DE19501517C1 (de) 1995-01-19 1996-05-02 Siemens Ag Verfahren, Sendegerät und Empfangsgerät zur Übertragung von Sprachinformation
US6009325A (en) 1995-02-01 1999-12-28 Motorola, Inc. Method of and apparatus for operating a cellular phone in one of two modes
US5724243A (en) 1995-02-10 1998-03-03 Highwaymaster Communications, Inc. Method and apparatus for determining expected time of arrival
US5797091A (en) 1995-03-07 1998-08-18 Xypoint Corporation Personal communication system and method of use
KR0140130B1 (ko) 1995-03-07 1998-07-01 김주용 디지탈이동통신 시스템 장치 및 각 서브시스템 간의 타이밍 설계 방법
US5608375A (en) 1995-03-20 1997-03-04 Wheelock Inc. Synchronized visual/audible alarm system
EP0734185A2 (en) 1995-03-23 1996-09-25 Hughes Electronics DTMF tone transmission in a voice communication system
FR2732509B1 (fr) 1995-03-31 1997-06-13 Sgs Thomson Microelectronics Boitier de montage d'une puce de circuit integre
US5812522A (en) 1995-03-31 1998-09-22 Airtouch Communications, Inc. Location-ruled radio-integrated network
US5532690A (en) 1995-04-04 1996-07-02 Itt Corporation Apparatus and method for monitoring and bounding the path of a ground vehicle
US5572204A (en) 1995-04-10 1996-11-05 Ford Motor Company Vehicular emergency message system
US5687215A (en) 1995-04-10 1997-11-11 Ford Motor Company Vehicular emergency message system
US5686910A (en) 1995-04-10 1997-11-11 Ford Motor Company Vehicular emergency message system with automatic periodic call-in
US5798693A (en) 1995-06-07 1998-08-25 Engellenner; Thomas J. Electronic locating systems
US5717406A (en) 1995-06-07 1998-02-10 Sanconix Inc. Enhanced position calculation
US5752186A (en) 1995-06-07 1998-05-12 Jeman Technologies, Inc. Access free wireless telephony fulfillment service system
US5691980A (en) 1995-06-07 1997-11-25 General Electric Company Local communication network for power reduction and enhanced reliability in a multiple node tracking system
FI952844A (fi) 1995-06-09 1996-12-10 Nokia Mobile Phones Ltd Menetelmä kanavanvaihdon parantamiseksi
US5752193A (en) 1995-09-01 1998-05-12 Motorola, Inc. Method and apparatus for communicating in a wireless communication system
US5774837A (en) 1995-09-13 1998-06-30 Voxware, Inc. Speech coding system and method using voicing probability determination
US5841396A (en) 1996-03-08 1998-11-24 Snaptrack, Inc. GPS receiver utilizing a communication link
US5663734A (en) 1995-10-09 1997-09-02 Precision Tracking, Inc. GPS receiver and method for processing GPS signals
US6131067A (en) 1995-10-09 2000-10-10 Snaptrack, Inc. Client-server based remote locator device
US6002363A (en) 1996-03-08 1999-12-14 Snaptrack, Inc. Combined GPS positioning system and communications system utilizing shared circuitry
US5825327A (en) 1996-03-08 1998-10-20 Snaptrack, Inc. GPS receivers and garments containing GPS receivers and methods for using these GPS receivers
US5831574A (en) 1996-03-08 1998-11-03 Snaptrack, Inc. Method and apparatus for determining the location of an object which may have an obstructed view of the sky
US5884214A (en) 1996-09-06 1999-03-16 Snaptrack, Inc. GPS receiver and method for processing GPS signals
US5805576A (en) 1995-10-18 1998-09-08 Cellular Telecom, Ltd. Method and apparatus for TDMA wireless communication employing collector arrays for range extension
US5627517A (en) 1995-11-01 1997-05-06 Xerox Corporation Decentralized tracking and routing system wherein packages are associated with active tags
US5826188A (en) 1995-12-07 1998-10-20 Motorola, Inc. Method and apparatus for handing off calls between differing radio telecommunication networks
AU1044197A (en) 1995-12-07 1997-06-27 Telefonaktiebolaget Lm Ericsson (Publ) Emergency call handling in a cellular telecommunications system
US5991279A (en) 1995-12-07 1999-11-23 Vistar Telecommunications Inc. Wireless packet data distributed communications system
JPH09172685A (ja) 1995-12-19 1997-06-30 Sony Corp 無線通信システム及び通信方法並びに移動通信端末装置
US5835907A (en) 1995-12-20 1998-11-10 Mci Communications Corporation Emergency PCS system for identification and notification of a subscriber's location
US5918180A (en) 1995-12-22 1999-06-29 Dimino; Michael Telephone operable global tracking system for vehicles
US5842141A (en) 1996-01-01 1998-11-24 Nokia Mobile Phones Limited Mobile terminal having user-actuated pager mode
US5960363A (en) 1996-01-24 1999-09-28 Sony Corporation Tone generating apparatus for a cellular telephone to simulate tones normally sensed by a user of a land-line telephone
US5778024A (en) * 1996-02-01 1998-07-07 Qualcomm Incorporated Dual-mode communications processor
JP2785789B2 (ja) 1996-02-09 1998-08-13 日本電気株式会社 ディジタル移動通信システム
US6133874A (en) 1996-03-08 2000-10-17 Snaptrack, Inc. Method and apparatus for acquiring satellite positioning system signals
US5748083A (en) 1996-03-11 1998-05-05 Security Solutions Plus Computer asset protection apparatus and method
US5815114A (en) 1996-04-05 1998-09-29 Discovision Associates Positioning system and method
US5850392A (en) 1996-04-10 1998-12-15 Ericsson Inc. Spread spectrum random access systems and methods for time division multiple access radiotelephone communication systems
US6173194B1 (en) 1996-04-15 2001-01-09 Nokia Mobile Phones Limited Mobile terminal having improved user interface
US5712619A (en) 1996-04-18 1998-01-27 Simkin; Alan C. Global positioning system personal alarm
US5637355A (en) 1996-04-22 1997-06-10 Rmt, Inc. Method of nonhazardous removal of paint containing heavy metals and coating preparation for performing the same
JP3606498B2 (ja) 1996-04-26 2005-01-05 三菱電機株式会社 携帯情報端末装置
US5864578A (en) 1996-04-29 1999-01-26 Golden Bridge Technology, Inc. Matched filter-based handoff method and apparatus
US6067457A (en) 1996-04-30 2000-05-23 Motorola, Inc. Method for dynamically assigning priority to a call
US5838237A (en) 1996-05-22 1998-11-17 Revell; Graeme Charles Personal alarm device
US5703598A (en) 1996-05-24 1997-12-30 Emmons; Ardath H. Method and system for tracking stolen property
US5796808A (en) 1997-01-09 1998-08-18 Paradyne Corporation System and method for automatically selecting the mode of communication between a plurality of modems
US5804810A (en) 1996-06-26 1998-09-08 Par Government Systems Corporation Communicating with electronic tags
US5774876A (en) 1996-06-26 1998-06-30 Par Government Systems Corporation Managing assets with active electronic tags
US5892441A (en) 1996-06-26 1999-04-06 Par Government Systems Corporation Sensing with active electronic tags
US5825283A (en) 1996-07-03 1998-10-20 Camhi; Elie System for the security and auditing of persons and property
US5784422A (en) 1996-08-05 1998-07-21 Transcrypt International, Inc. Apparatus and method for accurate synchronization with inbound data packets at relatively low sampling rates
JPH1047982A (ja) 1996-08-06 1998-02-20 Sony Corp 位置測定装置、位置測定方法、ナビゲーション装置、ナビゲーション方法、情報サービス方法及び自動車
US5731757A (en) 1996-08-19 1998-03-24 Pro Tech Monitoring, Inc. Portable tracking apparatus for continuous position determination of criminal offenders and victims
US5881373A (en) 1996-08-28 1999-03-09 Telefonaktiebolaget Lm Ericsson Muting a microphone in radiocommunication systems
US6185427B1 (en) 1996-09-06 2001-02-06 Snaptrack, Inc. Distributed satellite position system processing and application network
US6014376A (en) 1996-09-18 2000-01-11 Motorola, Inc. Method for over-the-air synchronization adjustment in a communication system
US6069570A (en) 1996-09-20 2000-05-30 Atx Technologies, Inc. Asset location system
US5864763A (en) 1996-09-24 1999-01-26 Qualcomm Inc Digital wireless telephone system interface for analog telecommunications equipment
US5961608A (en) 1996-10-04 1999-10-05 Sony Corporation Modem and communications control selection
US5790842A (en) 1996-10-11 1998-08-04 Divicom, Inc. Processing system with simultaneous utilization of multiple clock signals
US5963130A (en) 1996-10-28 1999-10-05 Zoltar Satellite Alarm Systems, Inc. Self-locating remote monitoring systems
US6014089A (en) 1996-10-28 2000-01-11 Tracy Corporation Ii Method for transmitting data using a digital control channel of a wireless network
US6018654A (en) 1996-10-29 2000-01-25 Ericsson Inc Method and apparatus for downloading tones to mobile terminals
US5978676A (en) 1996-11-15 1999-11-02 Telefonaktiebolaget L/M Ericsson (Publ) Inband signal converter, and associated method, for a digital communication system
US5748084A (en) 1996-11-18 1998-05-05 Isikoff; Jeremy M. Device security system
US5771001A (en) 1996-11-18 1998-06-23 Cobb; Marlon J. Personal alarm system
US5856986A (en) 1996-11-25 1999-01-05 Texas Instruments Incorporated Synchronization field pattern selection
US6011973A (en) 1996-12-05 2000-01-04 Ericsson Inc. Method and apparatus for restricting operation of cellular telephones to well delineated geographical areas
US5911129A (en) 1996-12-13 1999-06-08 Intel Corporation Audio font used for capture and rendering
CA2247313C (en) 1996-12-26 2005-10-04 Ntt Mobile Communications Network Inc. Frame communication system and method
GB2320862B (en) 1996-12-27 2001-11-21 Roke Manor Research Data communications system
US6122514A (en) 1997-01-03 2000-09-19 Cellport Systems, Inc. Communications channel selection
US5946304A (en) 1997-01-08 1999-08-31 Paradyne Corporation Method and apparatus for controlling the operation of a modem capable of transmitting and receiving both voice and data signals
US5742233A (en) 1997-01-21 1998-04-21 Hoffman Resources, Llc Personal security and tracking system
US5940598A (en) 1997-01-28 1999-08-17 Bell Atlantic Network Services, Inc. Telecommunications network to internetwork universal server
GB2321827B (en) 1997-01-31 2001-06-13 Ericsson Telefon Ab L M Telecommunications system
GB2321812B (en) 1997-02-01 2001-02-21 Ico Services Ltd User terminal positioning system and method employing external signals
US5812087A (en) 1997-02-03 1998-09-22 Snaptrack, Inc. Method and apparatus for satellite positioning system based time measurement
US6289041B1 (en) 1997-02-11 2001-09-11 Snaptrack, Inc. Fast Acquisition, high sensitivity GPS receiver
US6055434A (en) 1997-02-11 2000-04-25 Ericsson Inc. Method and system for locating a mobile station within a mobile telecommunications network
US6359923B1 (en) 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
US5970130A (en) 1997-02-26 1999-10-19 Dynamic Telcom Engineering, L.L.C. Independent central office which provides local and long distance calling services to new residential and commercial developments
US6470046B1 (en) 1997-02-26 2002-10-22 Paradyne Corporation Apparatus and method for a combined DSL and voice system
US5933468A (en) 1997-03-06 1999-08-03 Telefonaktiebolaget L M Ericsson (Publ) Continuous synchronization adjustment in a telecommunications system
US6304637B1 (en) 1997-03-14 2001-10-16 Itxc, Inc. Method and apparatus for establishing and facilitating a direct quality voice call to a telephone extension on behalf of a client computer
US6175307B1 (en) 1997-03-18 2001-01-16 Digital Security Controls Ltd. Security system with audible link and two-way communication
US6138224A (en) 1997-04-04 2000-10-24 International Business Machines Corporation Method for paging software wavetable synthesis samples
JP3940200B2 (ja) 1997-04-09 2007-07-04 株式会社イシダ 製袋包装機
US5886634A (en) 1997-05-05 1999-03-23 Electronic Data Systems Corporation Item removal system and method
US6690681B1 (en) * 1997-05-19 2004-02-10 Airbiquity Inc. In-band signaling for data communications over digital wireless telecommunications network
US6493338B1 (en) 1997-05-19 2002-12-10 Airbiquity Inc. Multichannel in-band signaling for data communications over digital wireless telecommunications networks
BR9804923A (pt) 1997-05-19 2001-09-18 Integrated Data Communications Sistema e processo para comunicação de dados de geo posicionamento em três eixos geométricos, por tempo auferido, dentro de redes de telecomunicação
US6771629B1 (en) 1999-01-15 2004-08-03 Airbiquity Inc. In-band signaling for synchronization in a voice communications network
US7164662B2 (en) 1997-05-19 2007-01-16 Airbiquity, Inc. Network delay identification method and apparatus
USD395250S (en) 1997-05-29 1998-06-16 Garmin Corporation Combined hand held communication receiver and GPS device
US6356560B1 (en) 1997-05-30 2002-03-12 Adtran, Inc. Arbitration mechanism for statistically multiplexed frame relay switching system
US6522265B1 (en) 1997-06-25 2003-02-18 Navox Corporation Vehicle tracking and security system incorporating simultaneous voice and data communication
US6140956A (en) 1997-06-25 2000-10-31 Cellutrac, Inc. Vehicle tracking and security system incorporating simultaneous voice and data communication
EP0889610B1 (en) 1997-07-01 2005-12-21 Alcatel SPS synchronization method
US5930340A (en) 1997-07-07 1999-07-27 Advanced Micro Devices Device and method for isolating voice and data signals on a common carrier
US6122271A (en) 1997-07-07 2000-09-19 Motorola, Inc. Digital communication system with integral messaging and method therefor
US5963134A (en) 1997-07-24 1999-10-05 Checkpoint Systems, Inc. Inventory system using articles with RFID tags
US6707421B1 (en) 1997-08-19 2004-03-16 Siemens Vdo Automotive Corporation Driver information system
JP2931276B2 (ja) 1997-09-04 1999-08-09 豊喜 笹倉 機器の使用制限装置
US6301480B1 (en) 1997-09-05 2001-10-09 @Track Communications, Inc. System and method for communicating using a voice network and a data network
US6076099A (en) 1997-09-09 2000-06-13 Chen; Thomas C. H. Method for configurable intelligent-agent-based wireless communication system
AU9541098A (en) 1997-09-18 1999-04-05 Nokia Mobile Phones Limited Time diversity in a tdma system
US6212207B1 (en) 1997-09-26 2001-04-03 3Com Corporation Robbed bit signal detection and compensation
US6006189A (en) 1997-10-10 1999-12-21 Nortel Networks Corporation Method and apparatus for storing and forwarding voice signals
US6295461B1 (en) 1997-11-03 2001-09-25 Intermec Ip Corp. Multi-mode radio frequency network system
US6272315B1 (en) 1997-12-03 2001-08-07 Northern Telecom Limited Mobile satellite system/terrestrial wireless system interworking techniques
US6081523A (en) 1997-12-05 2000-06-27 Advanced Micro Devices, Inc. Arrangement for transmitting packet data segments from a media access controller across multiple physical links
US6526026B1 (en) 1997-12-10 2003-02-25 Intel Corporation Digit transmission over wireless communication link
US5881069A (en) 1997-12-12 1999-03-09 Motorola, Inc. Method and apparatus for error correction processing in a radio communication device
US6208959B1 (en) 1997-12-15 2001-03-27 Telefonaktibolaget Lm Ericsson (Publ) Mapping of digital data symbols onto one or more formant frequencies for transmission over a coded voice channel
US6032037A (en) 1997-12-16 2000-02-29 Sur-Gard Security Systems Ltd. Alarm panel with cellular communications backup
US6014090A (en) 1997-12-22 2000-01-11 At&T Corp. Method and apparatus for delivering local information to travelers
US6249227B1 (en) 1998-01-05 2001-06-19 Intermec Ip Corp. RFID integrated in electronic assets
US5936526A (en) 1998-01-13 1999-08-10 Micron Electronics, Inc. Apparatus for generating an alarm in a portable computer system
US6107960A (en) 1998-01-20 2000-08-22 Snaptrack, Inc. Reducing cross-interference in a combined GPS receiver and communication system
US5955992A (en) 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US7430257B1 (en) 1998-02-12 2008-09-30 Lot 41 Acquisition Foundation, Llc Multicarrier sub-layer for direct sequence channel and multiple-access coding
US6101395A (en) 1998-02-13 2000-08-08 Intel Corporation Method and apparatus for optimizing call setup traffic in a communications network with out-of-band call control signaling
US6038595A (en) 1998-03-02 2000-03-14 Emc Corporation Information/communication device for network based services and a system for use of information/communication based services
US6044257A (en) 1998-03-19 2000-03-28 American Secure Care, Llc Panic button phone
US6112084A (en) 1998-03-24 2000-08-29 Telefonaktiebolaget Lm Ericsson Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork
US5949335A (en) 1998-04-14 1999-09-07 Sensormatic Electronics Corporation RFID tagging system for network assets
US5999124A (en) 1998-04-22 1999-12-07 Snaptrack, Inc, Satellite positioning system augmentation with wireless communication signals
AU4181199A (en) 1998-04-28 1999-11-16 Snaptrack, Inc. Method and apparatus for providing location-based information via a computer network
US6308060B2 (en) 1998-06-15 2001-10-23 @Track Communications, Inc. Method and apparatus for providing a communication path using a paging network
US6024142A (en) 1998-06-25 2000-02-15 Micron Communications, Inc. Communications system and method, fleet management system and method, and method of impeding theft of fuel
CA2242495A1 (en) 1998-07-06 2000-01-06 Northern Telecom Limited Data network node connection establishment
US6525842B1 (en) 1998-07-09 2003-02-25 Canon Kabushiki Kaisha Image processing apparatus and method of the same and storage medium
US6650649B1 (en) 1998-07-24 2003-11-18 Hughes Electronics Corporation Extension interface units in a communication system
US6405033B1 (en) 1998-07-29 2002-06-11 Track Communications, Inc. System and method for routing a call using a communications network
US6084517A (en) 1998-08-12 2000-07-04 Rabanne; Michael C. System for tracking possessions
US6091969A (en) 1998-08-21 2000-07-18 Motorola, Inc. Method and apparatus for inband signaling control of vocoder bypass
BRPI9913197B1 (pt) 1998-08-21 2015-10-20 Motorola Mobility Llc método e aparelho para controle de operação de bypass de vocoder utilizando sinalização em faixa
US6351495B1 (en) 1998-08-28 2002-02-26 Lucent Technologies Inc. Apparatus and method for conveying TTY signals over wireless telecommunication systems
US6434198B1 (en) 1998-08-28 2002-08-13 Lucent Technologies Inc. Method for conveying TTY signals over wireless communication systems
US6683855B1 (en) 1998-08-31 2004-01-27 Lucent Technologies Inc. Forward error correction for high speed optical transmission systems
US6067044A (en) 1998-09-21 2000-05-23 National Systems And Research Company Remote tracking and sensing system and method
US6741581B1 (en) 1998-09-22 2004-05-25 Hughes Electronics Corporation System and method for transmitting data in frame format using an R-Rake retransmission technique with blind identification of data frames
US6778645B1 (en) 1998-10-30 2004-08-17 Intel Corporation Method and apparatus for coordinating a point to point data session from an existing voice telephone call
BR9908762A (pt) 1998-11-02 2004-02-25 Integrated Data Communications Endereçamento de protocolo de internet geo-espacial
US6430176B1 (en) 1998-11-06 2002-08-06 Nortel Networks Limited Multimedia channel management through PSTN signaling
US6343217B1 (en) 1998-11-12 2002-01-29 Legerity, Inc. Digital cordless telephony with PCM coding
US6373842B1 (en) 1998-11-19 2002-04-16 Nortel Networks Limited Unidirectional streaming services in wireless systems
US6614781B1 (en) 1998-11-20 2003-09-02 Level 3 Communications, Inc. Voice over data telecommunications network architecture
US6154658A (en) 1998-12-14 2000-11-28 Lockheed Martin Corporation Vehicle information and safety control system
US6690922B1 (en) 1998-12-23 2004-02-10 Honeywell International Inc. Radio frequency (RF) system loss compensation method using power measurement of pulsed RF source
US6282430B1 (en) 1999-01-01 2001-08-28 Motorola, Inc. Method for obtaining control information during a communication session in a radio communication system
GB2346291B (en) 1999-01-26 2004-01-21 Ericsson Telefon Ab L M Handling menu information
US6754265B1 (en) 1999-02-05 2004-06-22 Honeywell International Inc. VOCODER capable modulator/demodulator
US6747571B2 (en) 1999-03-08 2004-06-08 Comverge Technologies, Inc. Utility meter interface system
SE521472C2 (sv) 1999-03-16 2003-11-04 Ericsson Telefon Ab L M Portabel kommunikationsapparat med dynamisk meny
US6519260B1 (en) 1999-03-17 2003-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Reduced delay priority for comfort noise
US6166688A (en) 1999-03-31 2000-12-26 International Business Machines Corporation Data processing system and method for disabling a portable computer outside an authorized area
US6765931B1 (en) 1999-04-13 2004-07-20 Broadcom Corporation Gateway with voice
US6345251B1 (en) 1999-06-15 2002-02-05 Telefonaktiebolaget Lm Ericsson (Publ) Low-rate speech coder for non-speech data transmission
US6611804B1 (en) 1999-06-15 2003-08-26 Telefonaktiebolaget Lm Ericsson (Publ) Universal TTY/TDD devices for robust text and data transmission via PSTN and cellular phone networks
US6321091B1 (en) 1999-07-29 2001-11-20 Bryan Holland Portable locator system and method
US6453168B1 (en) 1999-08-02 2002-09-17 Itt Manufacturing Enterprises, Inc Method and apparatus for determining the position of a mobile communication device using low accuracy clocks
KR100337882B1 (ko) 1999-10-26 2002-05-23 김순택 플라즈마 표시 패널의 구동방법
US6300875B1 (en) 1999-11-22 2001-10-09 Mci Worldcom, Inc. Method and apparatus for high efficiency position information reporting
US6358145B1 (en) 1999-11-29 2002-03-19 Strottman International Broadcast sweepstakes game system and game piece device
US6307471B1 (en) 1999-12-01 2001-10-23 Ensure Technologies, Inc. Radio based proximity token with multiple antennas
US6614349B1 (en) 1999-12-03 2003-09-02 Airbiquity Inc. Facility and method for tracking physical assets
US6516198B1 (en) 1999-12-06 2003-02-04 Tendler Cellular Inc System for location reporting
GB2357611B (en) 1999-12-21 2004-06-02 Ibm Electronic location tag
SE520919C2 (sv) * 1999-12-29 2003-09-16 Volvo Technology Corp System och metod för kommunikation mellan en central station och ett på avstånd beläget objekt
US6628967B1 (en) 1999-12-30 2003-09-30 Nortel Networks Limited Wireless communication device capable to transmit/receive TTY/TDD messages with variable data rate, embedded into audio data frames
US6362736B1 (en) 2000-01-04 2002-03-26 Lucent Technologies Inc. Method and apparatus for automatic recovery of a stolen object
US6603977B1 (en) 2000-02-04 2003-08-05 Sbc Properties, Lp Location information system for a wireless communication device and method therefor
JP2001238256A (ja) 2000-02-21 2001-08-31 Hitachi Kokusai Electric Inc 可変速度符号化システム
PT1273190E (pt) 2000-03-21 2010-07-06 Airbiquity Inc MODEM DE BANDA TELEFËNICA PARA COMUNICAÎES DE DADOS ATRAVéS DE REDES DIGITAIS SEM FIOS
JP3551890B2 (ja) * 2000-04-10 2004-08-11 村田機械株式会社 通信端末装置
DE60026693D1 (de) 2000-04-11 2006-05-11 Airnet Communications Corp Verfahren und system zur übertragung von befehlen in abwärtsrichtung unter verwendung von drahtloser inband-signalisierung
BR0110253A (pt) 2000-04-24 2006-02-07 Qualcomm Inc Método, codificador de fala, elemento de infra-estrutura e unidade de assinante configurados para quantizar informações sobre um parâmetro de fala; bem como, método e codificador de fala configurado para quantizar informações sobre um parâmetro de fase de fala
FI109061B (fi) 2000-05-10 2002-05-15 Nokia Corp Resurssien varaaminen pakettiverkossa
ATE401723T1 (de) 2000-05-17 2008-08-15 Symstream Technology Holdings Verfahren und vorrichtung zur übertragung einer datenkommunikation in sprachrahmen mittels einer octave pulse data kodierung/dekodierung
US20060246910A1 (en) 2000-05-31 2006-11-02 Jerry Petermann Wireless devices for use with a wireless communications system with articial intelligence-based distributive call routing
GB2364480B (en) 2000-06-30 2004-07-14 Mitel Corp Method of using speech recognition to initiate a wireless application (WAP) session
US6327533B1 (en) 2000-06-30 2001-12-04 Geospatial Technologies, Inc. Method and apparatus for continuously locating an object
JP3335617B2 (ja) 2000-08-04 2002-10-21 松下電器産業株式会社 緊急通報システム端末機器、緊急通報システムおよび緊急通報システム端末機器制御方法
US20020022465A1 (en) * 2000-08-15 2002-02-21 Mccullagh Michael J. Apparatus and method for integrated frequency hopping and GPS receiver
US7092370B2 (en) 2000-08-17 2006-08-15 Roamware, Inc. Method and system for wireless voice channel/data channel integration
KR100525384B1 (ko) 2000-10-31 2005-11-02 엘지전자 주식회사 무선 통신 시스템에서의 패킷 재전송 제어 방법
US20020085703A1 (en) 2001-01-02 2002-07-04 Proctor Rod L. Facility and method for cellular data communication between hearing impaired users and emergency service centers
US6845153B2 (en) 2001-01-31 2005-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Network independent party addressing using a unique identifier linked to network specific addresses
US20020111167A1 (en) 2001-02-13 2002-08-15 Telefonaktiebolaget Lm Ericsson (Publ). System and method of providing voice and data features in a time division multiple access (TDMA) network
US20020122401A1 (en) 2001-03-02 2002-09-05 Zeng-Jun Xiang System and method in a wireless telecommunication network for placing a voice call on hold and conducting a data session
US6799050B1 (en) 2001-06-04 2004-09-28 Snaptrack, Inc. Reducing cross-interference in a combined GPS receiver and communication system
US20030016639A1 (en) 2001-07-19 2003-01-23 Ericsson Inc. Telecommunications system and method for delivery of short message service messages to a mobile terminal in data mode
US7283904B2 (en) 2001-10-17 2007-10-16 Airbiquity, Inc. Multi-sensor fusion
JP4176637B2 (ja) 2001-10-17 2008-11-05 インフォーカス コーポレイション データ会議方法、装置及びシステム
US7215965B2 (en) 2001-11-01 2007-05-08 Airbiquity Inc. Facility and method for wireless transmission of location data in a voice channel of a digital wireless telecommunications network
US6981022B2 (en) 2001-11-02 2005-12-27 Lucent Technologies Inc. Using PSTN to convey participant IP addresses for multimedia conferencing
US6700867B2 (en) 2001-12-20 2004-03-02 Motorola, Inc. Method and system for reduced memory hybrid automatic repeat request
JP3486620B2 (ja) * 2002-03-18 2004-01-13 キヤノン株式会社 データ通信装置
US7102640B1 (en) 2002-03-21 2006-09-05 Nokia Corporation Service/device indication with graphical interface
US20030212562A1 (en) * 2002-05-13 2003-11-13 General Motors Corporation Manual barge-in for server-based in-vehicle voice recognition systems
US7269188B2 (en) 2002-05-24 2007-09-11 Airbiquity, Inc. Simultaneous voice and data modem
US20030227939A1 (en) 2002-06-05 2003-12-11 Satoru Yukie Establishing a connection using a hybrid receiver
US20040034529A1 (en) 2002-08-14 2004-02-19 Hooper Howard Gaines Multifunction printer that converts and prints voice data
US7562393B2 (en) 2002-10-21 2009-07-14 Alcatel-Lucent Usa Inc. Mobility access gateway
DE10249867A1 (de) * 2002-10-25 2004-05-13 Siemens Ag Verfahren und Einrichtung zur Auswahl eines Netzzugangs zu einem oder mehreren Datennetzen über ein Telekommuniktionsendgerät
US7653383B2 (en) 2003-02-28 2010-01-26 Motorola, Inc. Method and apparatus for remote data access in a mobile communication device
US6983171B2 (en) 2003-02-28 2006-01-03 Motorola, Inc. Device and method for communicating teletype information in a vehicle communication system
US8010124B2 (en) 2003-03-24 2011-08-30 Sony Ericsson Mobile Communications Ab Methods, systems and computer program products for providing location determination information to an assisted location service
US8359197B2 (en) * 2003-04-01 2013-01-22 Digital Voice Systems, Inc. Half-rate vocoder
US7206574B2 (en) 2003-04-17 2007-04-17 Lucent Technologies Inc. Automated exchange of broadband communication addresses over a non-broadband channel in a wireless telecommunication system
US7330453B1 (en) 2003-05-31 2008-02-12 3Com Corporation System and method for integrating call control and data network access components
US7398100B2 (en) 2003-07-01 2008-07-08 Motorola, Inc. Method, apparatus and system for use in controlling transmission power during wireless communication
US7583959B2 (en) 2003-07-07 2009-09-01 At&T Mobility Ii Llc One button access to network services from a remote control device
TWI229980B (en) 2003-11-20 2005-03-21 Syncomm Technology Corp De-mapping method for wireless communications systems
US7688260B2 (en) * 2004-08-26 2010-03-30 Global Locate, Inc. Method and apparatus for locating position of a mobile device in an assisted satellite positioning system
US7194438B2 (en) 2004-02-25 2007-03-20 Nokia Corporation Electronic payment schemes in a mobile environment for short-range transactions
US7477906B2 (en) 2004-02-27 2009-01-13 Research In Motion Limited Methods and apparatus for facilitating the determination of GPS location information for a mobile station without disrupting communications of a voice call
US8085741B2 (en) 2004-03-10 2011-12-27 Core Wireless Licensing S.A.R.L. System and method for pushing content to a terminal utilizing a network-initiated data service technique
US8265193B2 (en) * 2004-03-17 2012-09-11 General Motors Llc Method and system for communicating data over a wireless communication system voice channel utilizing frame gaps
US20050215228A1 (en) 2004-03-26 2005-09-29 Comverse Ltd. Voice session data session interoperability in the telephony environment
US8265057B2 (en) 2004-03-31 2012-09-11 Motorola Mobility Llc Enhanced voice pre-emption of active packet data service
EP1596613A1 (en) 2004-05-10 2005-11-16 Dialog Semiconductor GmbH Data and voice transmission within the same mobile phone call
WO2005114913A1 (en) 2004-05-21 2005-12-01 Nokia Corporation Device and method for automated functionality-based selective establishing of wireless data communication connections
US7856240B2 (en) 2004-06-07 2010-12-21 Clarity Technologies, Inc. Distributed sound enhancement
US20050090225A1 (en) 2004-11-16 2005-04-28 Om2 Technology Inc. A Simplified Second Generation Enhanced Emergency Communications System SSGE-911
US7508810B2 (en) * 2005-01-31 2009-03-24 Airbiquity Inc. Voice channel control of wireless packet data communications
US7970607B2 (en) * 2005-02-11 2011-06-28 Clyde Holmes Method and system for low bit rate voice encoding and decoding applicable for any reduced bandwidth requirements including wireless
US20060287003A1 (en) * 2005-06-15 2006-12-21 Kamyar Moinzadeh Concomitant inband signaling for data communications over digital wireless telecommunications network
US8874477B2 (en) 2005-10-04 2014-10-28 Steven Mark Hoffberg Multifactorial optimization system and method
US8194779B2 (en) 2005-10-24 2012-06-05 General Motors Llc Method for data communication via a voice channel of a wireless communication network
US8381047B2 (en) 2005-11-30 2013-02-19 Microsoft Corporation Predicting degradation of a communication channel below a threshold based on data transmission errors
US20070155360A1 (en) 2005-12-30 2007-07-05 Yafan An Methods, Apparatuses and Systems for the Reporting of Roadway Speed and Incident Data and the Constructing of Speed Map Database
DE102006010513B4 (de) 2006-03-07 2011-12-29 Infineon Technologies Ag Kommunikationseinrichtung, Funk-Kommunikations-Anordnung und Verfahren zum Übertragen von Information von einer ersten Funk-Kommunikationseinrichtung zu einer zweiten Funk-Kommunikationseinrichtung
US7924934B2 (en) * 2006-04-07 2011-04-12 Airbiquity, Inc. Time diversity voice channel data communications
US7511611B2 (en) 2006-05-18 2009-03-31 Casella Waste Systems, Inc. Systems for and methods of asset management in a waste management service environment
KR100735413B1 (ko) 2006-08-08 2007-07-04 삼성전자주식회사 블루투스를 이용하여 음악 데이터 재생 중 음성을입출력하는 이동통신 단말기 및 음성 입출력 방법
JP5089136B2 (ja) 2006-11-02 2012-12-05 株式会社デンソー 車載緊急通報装置
US20080143497A1 (en) 2006-12-15 2008-06-19 General Motors Corporation Vehicle Emergency Communication Mode Method and Apparatus
JP5113394B2 (ja) 2007-01-23 2013-01-09 太陽誘電株式会社 弾性波デバイス
KR100787982B1 (ko) 2007-03-02 2007-12-24 삼성전자주식회사 오디오신호의 에프엠 전송 장치 및 방법
DE102007023702A1 (de) 2007-05-22 2008-11-27 Infineon Technologies Ag Verfahren zum Erzeugen einer Generic Object Exchange Profile-Nachricht, Verfahren zum Bereitstellen von Navigations-Daten, Verfahren zum Aufbau einer Verbindung zum Übertragen von Navigations-Daten, Navigationsendgerät und Navigationsdaten-Einfüge-Einheit
US8190716B2 (en) 2007-08-24 2012-05-29 Broadcom Corporation Method and system for managing bluetooth communication using software or firmware filtering
JP4395800B2 (ja) 2007-09-18 2010-01-13 日本電気株式会社 電力管理システムおよび電力管理方法
US20090088180A1 (en) * 2007-10-01 2009-04-02 James Lamance Computing geographical location of a mobile receiver using network measurement reports
BRPI0817012A2 (pt) * 2007-10-20 2015-03-24 Airbiquity Inc Sinalização em banda sem fio com sistemas em veículo
US7790576B2 (en) * 2007-11-29 2010-09-07 Stats Chippac, Ltd. Semiconductor device and method of forming through hole vias in die extension region around periphery of die
US9208797B2 (en) 2008-04-18 2015-12-08 General Motors Llc Tone detection for signals sent through a vocoder
KR20090124588A (ko) 2008-05-30 2009-12-03 삼성전자주식회사 복수의 블루투스 프로파일 연결방법 및 이를 적용한블루투스 기기
US9083521B2 (en) 2008-06-05 2015-07-14 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8958441B2 (en) 2008-06-05 2015-02-17 Qualcomm Incorporated System and method of an in-band modem for data communications over digital wireless communication networks
US8825480B2 (en) * 2008-06-05 2014-09-02 Qualcomm Incorporated Apparatus and method of obtaining non-speech data embedded in vocoder packet
US8594138B2 (en) * 2008-09-15 2013-11-26 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US7983310B2 (en) * 2008-09-15 2011-07-19 Airbiquity Inc. Methods for in-band signaling through enhanced variable-rate codecs
US8073440B2 (en) * 2009-04-27 2011-12-06 Airbiquity, Inc. Automatic gain control in a personal navigation device

Also Published As

Publication number Publication date
BR112012009888A2 (pt) 2016-11-29
MX2012005702A (es) 2012-11-12
AU2010322322B2 (en) 2014-10-16
EP2504942A1 (en) 2012-10-03
AU2010322322A1 (en) 2012-05-03
KR20120101082A (ko) 2012-09-12
TW201129013A (en) 2011-08-16
AU2010322322A2 (en) 2012-08-23
EP2504942B1 (en) 2014-11-26
CA2778056A1 (en) 2011-05-26
CN102792625A (zh) 2012-11-21
JP5709887B2 (ja) 2015-04-30
US20110125488A1 (en) 2011-05-26
WO2011062715A1 (en) 2011-05-26
JP2013511893A (ja) 2013-04-04
US8249865B2 (en) 2012-08-21
CN102792625B (zh) 2015-06-17

Similar Documents

Publication Publication Date Title
TWI357741B (en) Adaptive data transmission for a digital in-band m
RU2563159C2 (ru) Система и способ внутриполосного модема для передач данных по сетям цифровой беспроводной связи
EP2291935B1 (en) System and method of an in-band modem for data communications over digital wireless communication networks
TWI439072B (zh) 頻帶內數據機中支援較高層級協定訊息傳遞之系統及方法
AU2009256048B2 (en) System and method of an in-band modem for data communications over digital wireless communication networks
TWI431971B (zh) 頻帶內數據機中支援較高層級協定訊息傳遞之系統及方法
EP2289195B1 (en) System and method of an modem for data communications over digital wireless communication networks
SG191622A1 (en) System and method of an in-band modem for data communications over digital wireless communication networks
TW201114213A (en) Efficient error correction scheme for data transmission in a wireless in-band signaling system
TW201101860A (en) Discontinuous transmission in a wireless network
RU2496242C2 (ru) Система и способ внутриполосного модема для передач данных по цифровым беспроводным сетям связи
Jung et al. Media and Radio Signal Processing for Mobile Communications

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees