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1. 发明授权

US06587688B1 Providing telephone number data for international cellular roamer service 有权
标题翻译：为国际蜂窝漫游服务提供电话号码数据
公开(公告)号：US06587688B1
公开(公告)日：2003-07-01
申请号：US09561623
申请日：2000-05-02
申请人： Michael Dwayne Chambers , Chee Keong Lee , Tony Tuong Nguyen , Charles C. Teising
发明人： Michael Dwayne Chambers , Chee Keong Lee , Tony Tuong Nguyen , Charles C. Teising
IPC分类号： H04Q720
CPC分类号： H04W8/12 , H04W4/00
摘要： Apparatus and a method for providing international numbers in order to implement international cellular roamer service. When a roamer registers, the Visitor Location Register (VLR) serving the roamer, queries the Home Location Register (HLR) record of the roamer. The HLR tests whether the VLR is in a foreign country. If so, the HLR provides numerical information, such as the roamer's billing number, in international form, including the country code of the HLR. Advantageously, the VLR is provided with international numbers where appropriate, and the roamer can be accommodated outside the roamer's home country.
摘要翻译：用于提供国际号码以便实施国际蜂窝漫游器服务的装置和方法。当漫游者注册时，为漫游者服务的访客位置寄存器（VLR）查询漫游者的归属位置寄存器（HLR）记录。 HLR测试VLR是否在国外。如果是这样，HLR提供国际形式的数字信息，如漫游者的帐单号码，包括HLR的国家代码。有利的是，VLR在适当的地方提供国际编号，漫游者可以容纳在漫游者本国之外。

2. 发明授权

US06782254B1 Handling of forward-to numbers across regional and political boundaries 有权
标题翻译：在区域和政治边界处理前进数字
公开(公告)号：US06782254B1
公开(公告)日：2004-08-24
申请号：US09364724
申请日：1999-07-30
申请人： Michael Dwayne Chambers , Weiqian Dai , Chee Keong Lee , Tony Tuong Nguyen
发明人： Michael Dwayne Chambers , Weiqian Dai , Chee Keong Lee , Tony Tuong Nguyen
IPC分类号： H04Q700
CPC分类号： H04W92/02
摘要： A method of forwarding a call properly for a wireless terminal when the wireless terminal is roaming in a different region (or country) than where its home location register resides is disclosed. In particular, this is accomplished by having the home location register and the serving wireless switching system implement procedures for internationalizing, when appropriate, forward-to numbers, and for nationalizing, when appropriate the same forward-to numbers. The illustrative embodiment of the present invention comprises: receiving at a first wireless switching center a first call set-up message from a second wireless switching center; transmitting, in response to the first call set-up message, a second call set-up message from the first wireless switching center to a third wireless switching center; receiving, in response to the second call set-up message, a first call set-up response message at the first wireless switching center from the third wireless switching center; and transmitting, in response to the first call set-up response message, a call set-up response message from the first wireless switching center to the second wireless switching center directing the second wireless switching center to set-up a call directly with the third wireless switching center.
摘要翻译：当无线终端在与其归属位置寄存器所在的不同的区域（或国家）中漫游时，公开了一种适于为无线终端转发呼叫的方法。特别地，这是通过使家庭位置寄存器和服务无线交换系统实现用于在适当时进行国际化的转发数字，并且在适当时使其相同的转发号码进行国有化来实现的。本发明的说明性实施例包括：在第一无线交换中心接收来自第二无线交换中心的第一呼叫建立消息; 响应于所述第一呼叫建立消息，从所述第一无线交换中心向第三无线交换中心发送第二呼叫建立消息; 响应于所述第二呼叫建立消息，从所述第三无线交换中心接收在所述第一无线交换中心处的第一呼叫建立响应消息; 以及响应于所述第一呼叫建立响应消息，从第一无线交换中心向所述第二无线交换中心发送呼叫建立响应消息，所述呼叫建立响应消息指示所述第二无线交换中心直接与所述第三无线交换中心建立呼叫无线交换中心。

3. 发明授权

US06683464B2 Stabilized conductivity sensing system 失效
标题翻译：稳定电导率检测系统
公开(公告)号：US06683464B2
公开(公告)日：2004-01-27
申请号：US10087315
申请日：2002-03-01
申请人： Kyong M. Park , Tony Tuong Nguyen
发明人： Kyong M. Park , Tony Tuong Nguyen
IPC分类号： G01R2708
CPC分类号： G01N27/07 , G01F23/241 , G01F23/243 , G01N27/06
摘要： A stabilized fluid conductivity measurement system includes a threaded metal housing with an inner portion having two probes for contacting the fluid to be measured and having an outer portion in which electrical circuitry is mounted. The circuitry includes a balanced square wave generator providing excitation to a modified Wheatstone bridge, including first and second input excitation terminals, and first and second output terminals. Fixed resistances may be located in 3 arms of the Wheatstone bridge, and the fourth arm may have two resistances with an intermediate tap; and one of the two probes is connected to this tap while the other probe is connected to one of the input excitation points.
摘要翻译：稳定的流体导电测量系统包括螺纹金属壳体，其内部具有两个探针，用于接触要测量的流体并具有安装电路的外部部分。该电路包括平衡方波发生器，其向经修改的惠斯登电桥提供激励，该修改的惠斯通电桥包括第一和第二输入激励端子以及第一和第二输出端子。固定电阻可以位于惠斯通电桥的3个臂中，第四臂可以具有两个具有中间抽头的电阻; 并且两个探头中的一个连接到该抽头，而另一个探头连接到其中一个输入激励点。

4. 发明授权

US06625453B1 Efficient wireless call delivery across regional and political boundaries 有权
标题翻译：跨区域和政治边界的高效无线电话传送
公开(公告)号：US06625453B1
公开(公告)日：2003-09-23
申请号：US09364904
申请日：1999-07-30
申请人： Weiqian Dai , Tony Tuong Nguyen
发明人： Weiqian Dai , Tony Tuong Nguyen
IPC分类号： H04B700
CPC分类号： H04M15/8083 , H04M15/49 , H04M15/8038 , H04M15/8044 , H04M2215/0184 , H04M2215/32 , H04M2215/34 , H04M2215/42 , H04M2215/46 , H04M2215/7442 , H04M2215/745 , H04W76/10 , H04W92/24
摘要： A method of reducing, or even eliminating, the tariffs, surcharges and long-distance charges that might be incurred for calls involving wireless switching centers in multiple regions (or countries) is disclosed. This is accomplished in the illustrative embodiment by trunking calls directly from the calling wireless switching center to the visiting wireless switching center, where advantageous, without trunking the call across a regional or political boundary as is done in the prior art. The illustrative embodiment of the present invention comprises: receiving at a first wireless switching center a first call set-up message from a second wireless switching center; transmitting, in response to the first call set-up message, a second call set-up message from the first wireless switching center to a third wireless switching center; receiving, in response to the second call set-up message, a first call set-up response message at the first wireless switching center from the third wireless switching center; and transmitting, in response to the first call set-up response message, a call set-up response message from the first wireless switching center to the second wireless switching center directing the second wireless switching center to set-up a call directly with the third wireless switching center.
摘要翻译：披露了减少或甚至消除多个地区（或国家）无线交换中心的电话可能招致的关税，附加费和长途费用的方法。这在说明性实施例中通过直接从呼叫无线交换中心到呼叫无线交换中心的呼叫来完成，在有利的情况下，没有如现有技术中那样在区域或政治边界上中继呼叫。本发明的说明性实施例包括：在第一无线交换中心接收来自第二无线交换中心的第一呼叫建立消息; 响应于所述第一呼叫建立消息，从所述第一无线交换中心向第三无线交换中心发送第二呼叫建立消息; 响应于所述第二呼叫建立消息，从所述第三无线交换中心接收在所述第一无线交换中心处的第一呼叫建立响应消息; 以及响应于所述第一呼叫建立响应消息，从第一无线交换中心向所述第二无线交换中心发送呼叫建立响应消息，所述呼叫建立响应消息指示所述第二无线交换中心直接与所述第三无线交换中心建立呼叫无线交换中心。

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