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1. 发明授权

US5187809A Dual mode automatic gain control 失效
标题翻译：双模式自动增益控制
公开(公告)号：US5187809A
公开(公告)日：1993-02-16
申请号：US896462
申请日：1992-06-08
申请人： Randall W. Rich , Rashid M. Osmani , Thomas J. Walczak , Stephen V. Cahill
发明人： Randall W. Rich , Rashid M. Osmani , Thomas J. Walczak , Stephen V. Cahill
IPC分类号： H03G3/20
CPC分类号： H03G3/3036 , H03G3/3052 , H03G3/3068
摘要： A gain control system for controlling signal levels of the signal received by a receiver. The gain control system is operable to control the signal levels of the signal when the signal is comprised of either a conventional, constant envelope signal, such as an FM signal, or a non-constant envelope signal, such as a TDMA composite modulated signal. The gain control system may be advantageously embodied in a dual-mode radiotelephone operable to receive both conventional, FM signals and TDMA, composite modulated signals.
摘要翻译：一种用于控制由接收机接收的信号的信号电平的增益控制系统。增益控制系统可操作以在信号由传统的恒定包络信号（例如FM信号）或诸如TDMA复合调制信号的非恒定包络信号组成时控制信号的信号电平。增益控制系统可以有利地体现在双模式无线电话中，可操作以接收传统的FM信号和TDMA，复合调制信号。

2. 发明授权

US6125286A Communication device having multiple displays and method of operating the same 失效
标题翻译：具有多个显示器的通信设备及其操作方法
公开(公告)号：US6125286A
公开(公告)日：2000-09-26
申请号：US869543
申请日：1997-06-05
申请人： Ketan R. Jahagirdar , William P. Alberth, Jr. , Rolland R. Hackbart , Rashid M. Osmani , Stephen V. Cahill
发明人： Ketan R. Jahagirdar , William P. Alberth, Jr. , Rolland R. Hackbart , Rashid M. Osmani , Stephen V. Cahill
IPC分类号： H04B1/38 , H04M1/00 , H04M1/02 , H04M1/22 , H04M1/57 , H04M1/663 , H04M1/725 , H04M1/73 , H04M11/00 , H04W52/02
CPC分类号： H04M1/72519 , H04M1/0214 , H04M1/0245 , H04M1/22 , H04M1/57 , H04M1/663 , H04M2250/16 , H04W52/027
摘要： A portable communication device (102) includes a housing (105), a first display area (130), and a second display area (132). The first display area (130) is outwardly directed from a side (122) of the housing (105), and the second display area (132) is outwardly directed from a front (120) of the housing (105). The housing (105) may include a housing portion (114) movable to an open position and a closed position, where the second display area (132) is covered by the housing portion (114) when positioned in one of the first and the second positions.
摘要翻译：便携式通信设备（102）包括壳体（105），第一显示区域（130）和第二显示区域（132）。第一显示区域（130）从壳体（105）的侧面（122）向外指向，并且第二显示区域（132）从壳体（105）的前部（120）向外指向。壳体（105）可以包括可移动到打开位置和闭合位置的壳体部分（114），其中当定位在第一和第二部分中的一个中时，第二显示区域（132）被壳体部分（114）职位

3. 发明授权

US06304763B1 Communication device having multiple displays and method of operating the same 有权
标题翻译：具有多个显示器的通信设备及其操作方法
公开(公告)号：US06304763B1
公开(公告)日：2001-10-16
申请号：US09562396
申请日：2000-05-01
申请人： Ketan R. Jahagirdar , William P. Alberth, Jr. , Rolland R. Hackbart , Rashid M. Osmani , Stephen V. Cahill
发明人： Ketan R. Jahagirdar , William P. Alberth, Jr. , Rolland R. Hackbart , Rashid M. Osmani , Stephen V. Cahill
IPC分类号： H04B138
CPC分类号： H04M1/72519 , H04M1/0214 , H04M1/0245 , H04M1/22 , H04M1/57 , H04M1/663 , H04M2250/16 , H04W52/027 , Y02D70/26
摘要： A portable communication device (102) includes a housing (105), a first display area (130), and a second display area (132). The first display area (130) is disposed in and outwardly directed from a front (120) of the housing (105), and the second display area (132) is disposed in and outwardly directed from a side (122) of the housing (105). The housing (105) may include a housing portion (114) movable to an open position and a closed position, where the second display area (132) is covered by the housing portion (114) when positioned in one of the first and the second positions.
摘要翻译：便携式通信设备（102）包括壳体（105），第一显示区域（130）和第二显示区域（132）。第一显示区域（130）设置在壳体（105）的前部（120）中并向外指向第二显示区域（132），并且第二显示区域（132）设置在外壳（122）的侧面（122） 105）。壳体（105）可以包括可移动到打开位置和闭合位置的壳体部分（114），其中当定位在第一和第二部分中的一个中时，第二显示区域（132）被壳体部分（114）职位

4. 发明授权

US5230093A Transmitter filter with integral directional coupler for cellular telephones 失效
标题翻译：用于蜂窝电话的集成方向耦合器的发射器滤波器
公开(公告)号：US5230093A
公开(公告)日：1993-07-20
申请号：US695500
申请日：1991-05-03
申请人： Randall W. Rich , Dale G. Schwent , Rashid M. Osmani
发明人： Randall W. Rich , Dale G. Schwent , Rashid M. Osmani
IPC分类号： C07C29/09 , C07C29/86 , C07C31/20 , C07C31/22 , C07C31/27 , C07C45/50 , C07C45/81 , C07C45/85 , C07C47/02 , H01P1/205 , H01P5/18 , H03G3/20 , H04B1/04 , H04B1/38 , H04B1/40 , H04Q7/38
CPC分类号： H03G3/3042 , C07C31/20 , C07C45/85 , H01P1/2056 , H04B1/0458
摘要： A cellular telephone transmitter (100) includes a variable-gain power amplifier (102), the output of which is filtered and sampled by a filter (104) with an integral directional coupler. Filter (104) includes both a transmitter signal filter and a directional coupler on a ceramic block of one or more pieces. The directional coupler has been realized by two coupled transmission lines provided by the two holes (206 and 207) on the left side of the ceramic block, and the transmitter filter has been realized by five short-circuited coupled transmission lines provided by the five holes (201-205) on the right side of the ceramic block.
摘要翻译：蜂窝电话发射机（100）包括可变增益功率放大器（102），其输出由具有积分定向耦合器的滤波器（104）滤波和采样。滤波器（104）包括一个或多个陶瓷块上的发射机信号滤波器和定向耦合器。定向耦合器已经通过由陶瓷块左侧的两个孔（206和207）提供的两个耦合的传输线实现，并且发射器滤波器已经由五个由五个孔提供的五个短路耦合传输线实现（201-205）在陶瓷块的右侧。

5. 发明授权

US5363071A Apparatus and method for varying the coupling of a radio frequency signal 失效
标题翻译：改变射频信号耦合的装置和方法
公开(公告)号：US5363071A
公开(公告)日：1994-11-08
申请号：US55900
申请日：1993-05-04
申请人： Dale G. Schwent , Rashid M. Osmani
发明人： Dale G. Schwent , Rashid M. Osmani
IPC分类号： H01P5/04 , H01P5/12 , H01P5/18 , H04B1/04
CPC分类号： H01P5/185 , H01P5/04 , H01P5/187
摘要： An apparatus and method for varying coupling of a radio frequency (RF) signal (408). This is advantageously used for increasing the dynamic range of a power detector (406) in an automatic power level control loop (403) of a transmission unit (404), while maintaining transmission unit efficiency at higher power levels. This is accomplished by selecting between a first operating mode of the RF coupler (405) having strong coupling, responsive to a first predetermined power level, such that the RF coupler (405) produces a first coupled RF signal (509) responsive to the RF signal (408) and a second operating mode of the RF coupler (405) having weak coupling, responsive to a second predetermined power level, such that the RF coupler (405) produces a second coupled RF signal (510) responsive to the RF signal (408).
摘要翻译：一种用于改变射频（RF）信号（408）的耦合的装置和方法。这有利地用于在传输单元（404）的自动功率电平控制环路（403）中增加功率检测器（406）的动态范围，同时将传输单元效率保持在较高功率水平。这通过在具有强耦合的RF耦合器（405）的第一操作模式之间进行选择，响应于第一预定功率电平，使得RF耦合器（405）产生响应于RF的第一耦合RF信号（509）信号（408）和具有弱耦合的RF耦合器（405）的第二操作模式，响应于第二预定功率电平，使得RF耦合器（405）响应于RF信号产生第二耦合RF信号（510）（408）。

6. 发明授权

US5438684A Radio frequency signal power amplifier combining network 失效
标题翻译：射频信号功率放大器组合网络
公开(公告)号：US5438684A
公开(公告)日：1995-08-01
申请号：US209697
申请日：1994-03-10
申请人： Dale G. Schwent , Rashid M. Osmani , Robert N. Weisshappel
发明人： Dale G. Schwent , Rashid M. Osmani , Robert N. Weisshappel
IPC分类号： H03F1/02 , H03F3/20 , H03F3/21 , H04B1/04 , H04B1/40 , H04B7/26
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）。

7. 发明授权

US5060294A Dual mode power amplifier for radiotelephone 失效
标题翻译：无线电话双模功率放大器
公开(公告)号：US5060294A
公开(公告)日：1991-10-22
申请号：US548807
申请日：1990-07-05
申请人： Dale G. Schwent , Rashid M. Osmani , Gary M. Cristiano
发明人： Dale G. Schwent , Rashid M. Osmani , Gary M. Cristiano
IPC分类号： H03F3/72 , H04B1/04
CPC分类号： H03F3/72 , H03F1/0261 , H04B1/04 , H04B2001/0408
摘要： A dual mode power amplifier operable in etiher the linear mode or the saturation mode. The power amplifier, when comprising a portion of a radio transmitter, permits efficient amplification of either a frequency modulated or a composite modulated signal by operation of the amplifier in the saturation mode or the linear mode, respectively. A processor determines the modulation-type of the signal and generates a signal to cause operation of the amplifier in either the saturation mode or the linear mode.
摘要翻译：双模式功率放大器可以在线性模式或饱和模式下工作。功率放大器当包括无线电发射机的一部分时，分别通过饱和模式或线性模式中的放大器的操作来有效地放大频率调制或复合调制信号。处理器确定信号的调制类型并产生信号以使放大器在饱和模式或线性模式下工作。

8. 发明授权

US5251331A High efficiency dual mode power amplifier apparatus 失效
标题翻译：高效双模功率放大器
公开(公告)号：US5251331A
公开(公告)日：1993-10-05
申请号：US850615
申请日：1992-03-13
申请人： Dale G. Schwent , Rashid M. Osmani , Gary M. Cristiano
发明人： Dale G. Schwent , Rashid M. Osmani , Gary M. Cristiano
IPC分类号： H03G3/10 , H03F3/04 , H03G3/00 , H03G3/20 , H03G3/30 , H04B1/04 , H04B1/40
CPC分类号： H03G3/3047 , H03G3/004
摘要： The dual mode power amplifier apparatus of the present invention is comprised of a number of power amplifiers (101-103) coupled to a voltage convertor (104) through their collector supply lines. A mode select line (105) is connected to the voltage convertor (104) to select a digital or analog mode. The preferred embodiment of the present invention is used in a hybrid digital/analog radiotelephone. In the digital mode, the voltage convertor (104) is turned off and the voltage convertor (104) supply voltage is allowed through to the collectors of the power amplifiers (101-103). This permits the power amplifiers (101-103) to operate with optimum linearity in a digital transmission environment. In an analog environment, the voltage convertor (104) is on and supplying a reduced voltage to the power amplifiers (101-103) allowing more efficient operation in this mode.
摘要翻译：本发明的双模式功率放大器装置包括通过其集电极供电线耦合到电压转换器（104）的多个功率放大器（101-103）。模式选择线（105）连接到电压转换器（104）以选择数字或模拟模式。本发明的优选实施例用于混合数字/模拟无线电话机中。在数字模式中，电压转换器（104）关闭，电压转换器（104）的供电电压被允许通过功率放大器（101-103）的集电极。这允许功率放大器（101-103）在数字传输环境中以最佳线性运行。在模拟环境中，电压转换器（104）接通并向功率放大器（101-103）提供降低的电压，从而允许在该模式下更有效的操作。

9. 发明授权

US5287555A Power control circuitry for a TDMA radio frequency transmitter 失效
标题翻译： TDMA射频发射机的功率控制电路
公开(公告)号：US5287555A
公开(公告)日：1994-02-15
申请号：US733797
申请日：1991-07-22
申请人： Gregory P. Wilson , Donald B. Lemersal, Jr. , Rashid M. Osmani , Dale G. Schwent , John C. Johnson
发明人： Gregory P. Wilson , Donald B. Lemersal, Jr. , Rashid M. Osmani , Dale G. Schwent , John C. Johnson
IPC分类号： H03G3/20 , H04B1/036 , H04B1/04 , H04B1/40 , H04B7/005
CPC分类号： H04W52/30 , H03G3/3042 , H03G3/3047 , H04B1/036 , H04B1/40 , H04W52/36 , H04B2001/0416
摘要： A transmitter (604) of a TDMA cellular telephone (600) includes power control circuitry (100) comprised of variable gain stage (104), mixer (106), bandpass filter (109), RF amplifier (110), and directional coupler (112) in a forward path, and two detectors (116 and 117), four A/D converters (118, 119, 121 and 123), digital controller (120), and D/A converter (126) in a feedback path. In operation, the variable gain stage (104) is responsive to a gain control signal AOCCNT (128) for adjusting a modulated IF signal, which is then mixed in mixer (106) with an RF reference signal to produce the transmit RF signal. The temperature and supply voltage are sampled by controller (120) at the beginning of each time slot. Adjustments in the gain control signal (128) dictated by the sampled temperature and supply voltage are made by controller (120) in each time slot prior to keying the RF amplifier (110). The transmit RF signal is amplified by the RF amplifier (110) to produce the transmit output signal which is coupled by the directional coupler (112) and transmit filter (618) to an antenna (620) for transmission. The forward power and reverse power of the transmit output signal are sampled by controller (120) at the end of each time slot. The sampled forward power is used by controller (120) in calculating the value of the gain control signal for the next time slot. If the sampled reverse power or supply voltage exceed respective maximum values, the RF amplifier (110) is dekeyed by controller (120).
摘要翻译： TDMA蜂窝电话（600）的发射机（604）包括具有可变增益级（104）的功率控制电路。在操作中，可变增益级（104）响应用于调整调制IF信号的增益控制信号（128）。在每个时隙开始时，控制器（120）对温度和电源电压进行采样。控制器（120）在对RF放大器（110）进行键控之前的每个时隙中由采样的温度和电源电压进行的增益控制信号（128）的调整。发射RF信号由RF放大器（110）放大以产生发射输出信号。发射输出信号的正向功率和反向功率在每个时隙结束时由控制器（120）进行采样。在计算下一个时隙的增益控制信号的值时，控制器（120）使用采样的正向功率。如果采样的反向功率或电源电压超过相应的最大值，则RF放大器（110）由控制器（120）键入。

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