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1. 发明授权

US5751718A Simultaneous transfer of voice and data information using multi-rate vocoder and byte control protocol 失效
标题翻译：使用多速率声码器和字节控制协议同时传输语音和数据信息
公开(公告)号：US5751718A
公开(公告)日：1998-05-12
申请号：US603974
申请日：1996-02-20
申请人： William Chunhung Yip , David T. Gustafson
发明人： William Chunhung Yip , David T. Gustafson
IPC分类号： H04J3/07 , H04J3/12 , H04J3/16 , H04M11/06 , H04J3/22
CPC分类号： H04M11/062 , H04J3/07 , H04J3/12 , H04J3/1688 , H04M11/06 , H04M11/064
摘要： A technique and method that efficiently and simultaneously transfers both voice and data information over a single communications link (11). The technique and method utilizes a multi-rate vocoder (12) for providing voice information at a plurality of different rates. Accordingly, the vocoder may be dynamically adjusted during transfer of information to meet channel bandwidth requirements. The technique and method also utilizes a byte-control protocol for inserting voice information within a stream of data information by the use of a data link escape (DLE) byte command (34). Accordingly, voice information is dynamically inserted into an existing stream of data information such that voice information is transferred only upon demand and when needed. This prevents the transfer of useless information, such as voice information when a speaker is silent and, thus, allows for very efficient utilization of system bandwidth.
摘要翻译：一种通过单个通信链路（11）有效并同时传送语音和数据信息的技术和方法。该技术和方法利用多速率声码器（12）来提供多种不同速率的语音信息。因此，可以在传送信息期间动态地调整声码器以满足信道带宽要求。该技术和方法还利用字节控制协议，通过使用数据链路转义（DLE）字节命令（34）将数据信息流插入语音信息。因此，语音信息被动态地插入到现有的数据信息流中，使得语音信息仅在需要时和需要时被传送。这防止了传播无用信息，例如当扬声器静音时的语音信息，因此允许非常有效地利用系统带宽。

2. 外观设计

USD352030S Telephone module 失效
公开(公告)号：USD352030S
公开(公告)日：1994-11-01
申请号：US8541
申请日：1993-05-20
申请人： Jim J. Johnson , David T. Gustafson , Theodore Harp, III
设计人： Jim J. Johnson , David T. Gustafson , Theodore Harp, III

3. 发明授权

US5524134A Telecommunications security module 失效
标题翻译：电信安全模块
公开(公告)号：US5524134A
公开(公告)日：1996-06-04
申请号：US234793
申请日：1994-04-28
申请人： David T. Gustafson , Michael A. Savage , Paul R. Kennedy , Joseph Kish, III , Bruce A. Fette
发明人： David T. Gustafson , Michael A. Savage , Paul R. Kennedy , Joseph Kish, III , Bruce A. Fette
IPC分类号： H04K1/06 , H04L9/00 , H04M1/68 , H04W12/02 , H04M11/00
CPC分类号： H04L9/00 , H04L2209/30 , H04L2209/80 , H04W12/02 , Y02B60/50
摘要： A security module for use in a cellular telephone provides for low power consumption. The security module includes a vocoder processor for manipulating signals from the telephone's microphone and to the telephone's ear piece; an encryption engine; a modem processor for controlling transmitted and received data from the cellular telephone; and a security system controller. The processors consume virtually no power when the phone is in the standby mode and very little power to produce encrypted communication when the cellular phone is operational.
摘要翻译：用于蜂窝电话的安全模块提供低功耗。安全模块包括用于操纵来自电话麦克风和电话耳机的信号的声码器处理器; 加密引擎; 调制解调器处理器，用于控制从蜂窝电话发送和接收的数据; 和一个安全系统控制器。当手机处于待机模式时，处理器几乎不消耗电力，并且在蜂窝电话可操作时产生加密通信的功率很小。

4. 发明授权

US06819286B2 Location determination for mobile units 失效
公开(公告)号：US06819286B2
公开(公告)日：2004-11-16
申请号：US10375993
申请日：2003-02-28
申请人： Peter J. Armbruster , Keith A. Olds , David T. Gustafson
发明人： Peter J. Armbruster , Keith A. Olds , David T. Gustafson
IPC分类号： G01S124
CPC分类号： G01S5/14 , G01S5/0226 , G01S5/0289
摘要： A method for location determination using Bluetooth techniques is applicable within buildings, underground or within other structures. A mobile unit (10) seeks the location of a cell from location master (20). Location master (20) and a number of location subsidiaries (21-24) determine ranging information with regard to the mobile unit (10) using Bluetooth techniques. The location master (20) then determines the mobile unit location using least squares estimation or other triangulation methods (50). In an alternate embodiment, ranging information is fine tuned for noise and error measurements between the location master and the location subsidiaries (51, 53) are used.

5. 外观设计

USD348470S Auxiliary terminal for use with secure telephone unit 失效
公开(公告)号：USD348470S
公开(公告)日：1994-07-05
申请号：US8742
申请日：1993-05-28
申请人： Albert L. Nagele , James J. Johnson , David T. Gustafson
设计人： Albert L. Nagele , James J. Johnson , David T. Gustafson

6. 发明授权

US5696880A Communication system user authentication method 失效
标题翻译：通信系统用户认证方式
公开(公告)号：US5696880A
公开(公告)日：1997-12-09
申请号：US494745
申请日：1995-06-26
申请人： David T. Gustafson , Richard G. Shepherd , Robert D. Frith
发明人： David T. Gustafson , Richard G. Shepherd , Robert D. Frith
IPC分类号： G10L17/00 , G10L5/00
CPC分类号： G10L17/22 , G10L17/00
摘要： The authentication method established a communication link between the calling and called users (14). The calling and called parties exchange voice identification data (22). The calling and called parties determine if the voice identification data compares (26,30). If voice identification data compares, a secure call is enabled (32). If the voice identification data does not compare the communication link is terminated (20).
摘要翻译：认证方法建立了呼叫和被叫用户之间的通信链路（14）。主叫和被叫方交换语音识别数据（22）。主叫和被叫方确定语音识别数据是否比较（26,30）。如果语音识别数据比较，启用安全呼叫（32）。如果语音识别数据没有比较，则通信链路被终止（20）。

7. 发明授权

US5506889A Digital voice privacy apparatus and method 失效
标题翻译：数字语音隐私设备及方法
公开(公告)号：US5506889A
公开(公告)日：1996-04-09
申请号：US315721
申请日：1994-09-30
申请人： David T. Gustafson , Paul R. Kennedy , Shirley H. Lee , James B. Piket
发明人： David T. Gustafson , Paul R. Kennedy , Shirley H. Lee , James B. Piket
IPC分类号： H04K1/00 , H04Q7/38
CPC分类号： H04K1/00
摘要： A cellular voice privacy arrangement includes a digital privacy unit which is part of each subscriber's fixed equipment. The digital privacy unit includes suitable analog to digital and digital to analog converters. A vocoder, digital signal processor and modem provide the privacy. The identification numbers of each terminal (phone) are exclusive-ORed to form a scramble variable. Vocoder data (voice coded information) is exclusive-ORed with the scramble variable to provided scrambled data for transmission.
摘要翻译：蜂窝语音隐私安排包括作为每个用户的固定设备的一部分的数字隐私单元。数字隐私单元包括合适的模数转换器和数模转换器。声码器，数字信号处理器和调制解调器提供隐私。每个终端（电话）的标识号是异或以形成一个扰频变量。声码器数据（语音编码信息）与加扰变量进行异或运算，以提供用于传输的加扰数据。

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