-
公开(公告)号：US5168522A
公开(公告)日：1992-12-01
申请号：US755970
申请日：1991-09-06
摘要： The wireless telephone of the present invention is comprised of a base unit, coupled to a land-line telephone system, and a remote unit that communicates with the base unit over radio frequencies. The remote unit has scrambling circuits (207 and 216) for encrypting voice signals transmitted to the base unit and decrypting voice signals received from the base unit. The base unit also has scrambling circuits (107 and 116) for encrypting voice signals transmitted to the remote unit and decrypting voice signals received from the remote unit. The wireless telephone uses a keypad (222) for initiating a demonstration mode that allows both parties to the conversation to hear the scrambled voice signal.
摘要翻译： 本发明的无线电话包括耦合到陆线电话系统的基本单元和通过无线电频率与基本单元通信的远程单元。 远程单元具有用于加密发送到基本单元的语音信号并解密从基本单元接收的语音信号的加扰电路（207和216）。 基站单元还具有用于加密发送到远程单元的语音信号并解密从远程单元接收的语音信号的加扰电路（107和116）。 无线电话使用键盘（222）来启动允许会话双方听到加扰语音信号的演示模式。
-
公开(公告)号：US6141569A
公开(公告)日：2000-10-31
申请号：US225636
申请日：1999-01-05
申请人： Robert N. Weisshappel , James Robert Brunette , Scott David Beutler , Stephen John Gaynes , James Dennis Domoleczny, Sr. , Albert Leo Nagele , Gary Michael Cristiano
发明人： Robert N. Weisshappel , James Robert Brunette , Scott David Beutler , Stephen John Gaynes , James Dennis Domoleczny, Sr. , Albert Leo Nagele , Gary Michael Cristiano
CPC分类号： H04M1/0262 , H01M2/1022 , H01M2/1055 , H01M2/1066 , H01M2/30 , H04M1/0214
摘要： A novel portable electronic device including a first housing portion (106) having a first battery (135) integrally associated with the first housing portion and a second housing portion (104) having a second battery (102) operatively coupled to an external surface of the second housing portion. Also, a method for coupling power to a portable electronic device comprises steps of providing a recessed region in a first housing portion for receiving a first battery and operatively coupling a second battery to an external surface of a second housing portion.
摘要翻译： 一种新颖的便携式电子设备，包括具有与第一壳体部分整体相关联的第一电池（135）的第一壳体部分（106）和具有第二电池（102）的第二壳体部分（104），第二电池（102）可操作地耦合到 第二壳体部分。 而且，用于将电力耦合到便携式电子设备的方法包括以下步骤：在第一壳体部分中提供凹陷区域，用于接收第一电池并且可操作地将第二电池耦合到第二壳体部分的外表面。
-
公开(公告)号：US5857148A
公开(公告)日：1999-01-05
申请号：US558581
申请日：1995-10-31
申请人： Robert N. Weisshappel , James Robert Brunette , Scott David Beutler , Stephen John Gaynes , James Dennis Domoleczny, Sr. , Albert Leo Nagele , Gary Michael Cristiano
发明人： Robert N. Weisshappel , James Robert Brunette , Scott David Beutler , Stephen John Gaynes , James Dennis Domoleczny, Sr. , Albert Leo Nagele , Gary Michael Cristiano
CPC分类号： H04M1/0262 , H01M2/1022 , H01M2/1055 , H01M2/1066 , H01M2/30 , H04M1/0214
摘要： A novel portable electronic device comprising a first housing portion (106) having a first battery (135) integrally associated with said first housing portion and a second housing portion (104) having a second battery (102) operatively coupled to an external surface of the second housing portion. Also, a method for coupling power to a portable electronic device comprises steps of providing a recessed region in a first housing portion for receiving a first battery and operatively coupling a second battery to an external surface of a second housing portion.
摘要翻译： 一种新颖的便携式电子设备，包括具有与所述第一壳体部分整体相关联的第一电池（135）的第一壳体部分（106）和具有第二电池（102）的第二壳体部分（104），所述第二电池（102）可操作地耦合到 第二壳体部分。 而且，用于将电力耦合到便携式电子设备的方法包括以下步骤：在第一壳体部分中提供凹陷区域，用于接收第一电池并且可操作地将第二电池耦合到第二壳体部分的外表面。
-
公开(公告)号：US5438684A
公开(公告)日：1995-08-01
申请号：US209697
申请日：1994-03-10
CPC分类号： H04B1/0458 , H03F1/0277 , H03F1/0288 , H03F3/211 , H04B1/406 , H03F2200/432 , H04B1/04 , H04B2001/0408
摘要： A dual-mode RF signal power amplifier combining network is comprised of two branches, each having a power amplifier (200 and 201). The first branch contains a non-linear mode power amplifier (200) while the second branch contains a linear mode power amplifier (201). The non-linear mode branch also has an RF switch (210). Both branches are coupled to a common output node (220). The common node (220) is coupled to a filter (107) before going to an antenna (106). The non-linear mode power amplifier (200) operates when an FM signal is to be amplified, while the linear amplifier (201) is biased in an off state. The linear mode power amplifier (201) operates when a digital signal is to be amplified, while the non-linear amplifier (200) is biased in an off state. The RF switch (210) removes the non-linear amplifier (200) from the circuit to prevent loading the on state linear amplifier (201).
摘要翻译： 双模RF信号功率放大器组合网络由两个分支组成，每个分支具有功率放大器（200和201）。 第一分支包含非线性模式功率放大器（200），而第二分支包含线性模式功率放大器（201）。 非线性模式分支还具有RF开关（210）。 两个分支耦合到公共输出节点（220）。 公共节点（220）在去天线（106）之前耦合到滤波器（107）。 当线性放大器（201）被偏置为关闭状态时，非线性模式功率放大器（200）将在FM信号被放大时工作。 当数字信号被放大时，线性模式功率放大器（201）工作，而非线性放大器（200）被偏置在关闭状态。 RF开关（210）从电路去除非线性放大器（200），以防止加载导通状态线性放大器（201）。
-
-
-
搜索结果
4 条记录 (耗时 0.01 秒)