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公开(公告)号：US06348781B1
公开(公告)日：2002-02-19
申请号：US09733722
申请日：2000-12-11
IPC分类号： G05F1613
CPC分类号： H03F1/0227 , H02M3/1582
摘要： A buck or boost (BOB) power converter circuit. A buck converter is cascaded with a boost converter to form a buck or boost circuit (20). The BOB converter is controlled by a controller (26) such that only the buck or boost converter is operating at any given time. A reference signal Vref can be applied to the controller (26) such that the output voltage from the converter closely tracks the reference signal. Positive and negative ramp signals are generated and an error feedback signal is compared with the ramp signals to control the output in accord with Vref. This is useful in application of the output voltage as the power supply to an RF Power Amplifier (16) so that the reference signal can represent the envelope of a signal to be transmitted and the RF PA (16) can operate at high efficiency.
摘要翻译： 降压或升压（BOB）电源转换器电路。 降压转换器与升压转换器级联以形成降压或升压电路（20）。 BOB转换器由控制器（26）控制，使得只有降压或升压转换器在任何给定时间运行。 参考信号Vref可以被施加到控制器（26），使得来自转换器的输出电压紧密地跟踪参考信号。 产生正和负斜坡信号，并将误差反馈信号与斜坡信号进行比较，以根据Vref控制输出。 这在将输出电压作为RF功率放大器（16）的电源应用时是有用的，使得参考信号可以表示要发送的信号的包络，并且RF PA（16）可以以高效率运行。
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2.发明授权Method and apparatus for integrating a plurality of analog input signals prior to transmitting a communications signal 失效用于在发送通信信号之前对多个模拟输入信号进行积分的方法和装置
公开(公告)号：US5634202A
公开(公告)日：1997-05-27
申请号：US149486
申请日：1993-11-09
CPC分类号： H03H19/004
摘要： A method and apparatus for integrating a plurality of analog input signals. A first integrator(725) having a first pole frequency integrates a first of the input signals and a second integrator(730) having a second pole frequency different than the first pole frequency integrates a second of the input signals. A summer(735) is connected to the first and second integrators to then sum the integrated first and second signals and provide a composite integrated signal prior to transmitting a communications signal.
摘要翻译： 一种用于集成多个模拟输入信号的方法和装置。 具有积分第一输入信号的第一积分器（725）和具有与第一极点频率不同的第二极点频率的第二积分器（730）积分第二输入信号。 夏天（735）连接到第一和第二积分器，然后对集成的第一和第二信号求和，并在发送通信信号之前提供复合的积分信号。
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3.发明授权Apparatus and method for minimizing the turn on time for a receiver operating in a discontinuous receive mode 失效用于最小化以不连续接收模式操作的接收器的接通时间的装置和方法
公开(公告)号：US5551078A
公开(公告)日：1996-08-27
申请号：US282666
申请日：1994-07-29
CPC分类号： H04W52/0229 , Y02B60/50
摘要： An apparatus and a method for minimizing the turn on time for a receiver operating in a discontinuous receive mode. In a communication unit the receiver receives a signal (118) having desirable data (word A) and undesirable data (word B). The receiver (104) has a discontinuous receive mode of operation wherein the receiver (104) is turned on when expecting the desirable data (word A) and turned off when expecting the undesirable data (word B). A duration of time that the receiver (104) has been turned off is determined. The receiver (104) is turned on at time prior to the arrival of the desirable data (word A) responsive to the duration of time that the receiver (104) has been turned off. The present invention advantageously minimizes the turn on time for the receiver (104) operating in a discontinuous receive mode to save current drain.
摘要翻译： 一种用于最小化以不连续接收模式操作的接收器的接通时间的装置和方法。 在通信单元中，接收器接收具有期望数据（字A）和不期望数据（字B）的信号（118）。 接收器（104）具有不连续的接收操作模式，其中当期望数据（字A）时，接收器（104）被接通，并且当期望不期望的数据（字B））时被接通。 确定接收器（104）已经关闭的持续时间。 响应于接收器（104）已经关闭的持续时间，接收器（104）在期望数据（字A）到达之前的时间被接通。 本发明有利地使以不连续接收模式工作的接收器（104）的导通时间最小化以节省电流消耗。
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4.发明授权Apparatus and method for minimizing the turn on time for a receiver operating in a discontinuous receive mode 失效用于最小化以不连续接收模式操作的接收器的接通时间的装置和方法
公开(公告)号：US5678227A
公开(公告)日：1997-10-14
申请号：US282668
申请日：1994-07-29
CPC分类号： H04W52/0245 , H04W88/022 , Y02B60/50
摘要： In a communication unit a receiver (104) receives a modulated signal (118), and produces a received signal (120) having a parameter. The receiver (104) has a discontinuous receive mode of operation, wherein the receiver (104) is permitted to be turned on and off. Receiver circuitry (105) receives the received signal (120), and produces an output signal (124) having a parameter. A controller (110) adjusts a value of the parameter of the output signal (124), responsive to a value of the parameter of the received signal (120), during the times when the receiver (140) is turned on; and holds the value of the parameter of the output signal (124), responsive to the value of the parameter of the received signal (120), at the time when the receiver (104) is turned off. The present invention advantageously minimizes the turn on time for the receiver (104) operating in a discontinuous receive mode to save current drain.
摘要翻译： 在通信单元中，接收机（104）接收调制信号（118），并产生具有参数的接收信号（120）。 接收器（104）具有不连续的接收操作模式，其中接收器（104）被允许被打开和关闭。 接收机电路（105）接收接收信号（120），并产生具有参数的输出信号（124）。 响应于接收信号（120）的参数的值，控制器（110）在接收器（140）接通的时间期间调整输出信号（124）的参数的值; 并且当接收器（104）关闭时，响应于接收信号（120）的参数的值，保持输出信号（124）的参数的值。 本发明有利地使以不连续接收模式工作的接收器（104）的导通时间最小化以节省电流消耗。
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公开(公告)号：US5210793A
公开(公告)日：1993-05-11
申请号：US610186
申请日：1990-11-07
摘要： A wedge-shaped receptacle for mounting a noise cancelling microphone transducer (105) and a ringer alert transducer (107) within a housing (101) is disclosed. The receptacle (111) is molded from a flexible material providing efficient assembly of the transducers within two apertures in the receptacle (129 and 133). Gaskets (137 and 145), molded as part of the receptacle, provide an acoustic and weatherproof seal between the receptacle (111) and the housing (101) for each transducer. The two apertures (129 and 133), providing acoustic interface for the ringer alert transducer (107) and the microphone transducer (105), share the same opening (113) in the front face of the housing (101). The aperture (133) for the noise cancelling microphone (105) is also open to a second opening (115) in the bottom face of the housing (101) to cancel background noise. The receptacle includes channels (201 and 202) which allow back pressure release for the ringer alert transducer (107 ). The receptacle (111) also dresses the microphone wires (141) through another aperture (131) to prevent damage during the assembly of the receptacle (111) into the housing (101).
摘要翻译： 公开了一种用于在壳体（101）内安装降噪麦克风换能器（105）和振铃警报换能器（107）的楔形插座。 容器（111）由柔性材料模制，从而将换能器有效地组装在容器（129和133）中的两个孔内。 作为容器的一部分模制的垫圈（137和145）为每个换能器在插座（111）和壳体（101）之间提供声学和防风雨的密封。 为振铃警报换能器（107）和麦克风换能器（105）提供声学接口的两个开孔（129和133）在壳体（101）的前面共享相同的开口（113）。 用于噪声消除麦克风（105）的孔径（133）也对壳体（101）的底面中的第二开口（115）开放以消除背景噪声。 插座包括允许振铃警报换能器（107）的背压释放的通道（201和202）。 插座（111）还通过另一个孔（131）穿过麦克风线（141），以防止在将插座（111）组装到壳体（101）期间的损坏。
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公开(公告)号：US07382039B2
公开(公告)日：2008-06-03
申请号：US11349608
申请日：2006-02-08
IPC分类号： H01L21/50
CPC分类号： H01L23/585 , H01L23/60 , H01L2924/0002 , H01L2924/3011 , H01L2924/00
摘要： An edge seal structure and fabrication method are described. The edge seal structure includes a high impedance substrate containing a base material and a grounded floating edge seal that is on the substrate but is isolated from the base material. The edge seal contacts a first doped well in the substrate that has the same conductivity type as and is more heavily doped than the base material. The first doped well is in a second doped well that has a different conductivity type than the first doped well. The first and second doped wells and the base material form back-to-back series connected diodes. The wells are effectively connected to power and ground such that the diodes are reverse-biased. The edge seal is formed by a stack of conductive layers, at least some of which are surrounded by a stack of insulating layers.
摘要翻译： 描述了边缘密封结构和制造方法。 边缘密封结构包括含有基材的高阻抗衬底和位于衬底上但与基底材料隔离的接地浮动边缘密封。 边缘密封接触衬底中的第一掺杂阱，其具有与基底材料相同的导电类型和比基底材料更重的掺杂。 第一掺杂阱位于具有与第一掺杂阱不同的导电类型的第二掺杂阱中。 第一和第二掺杂阱和基体材料形成背对背串联连接的二极管。 这些阱有效地连接到电源和接地，使得二极管被反向偏置。 边缘密封由一叠导电层形成，其中至少一些被一叠绝缘层包围。
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公开(公告)号：US5519346A
公开(公告)日：1996-05-21
申请号：US263595
申请日：1994-06-22
申请人： Kenneth R. Haddad , John J. Janssen
发明人： Kenneth R. Haddad , John J. Janssen
CPC分类号： H04W52/0258 , H04W52/0261
摘要： Radiotelephones often are powered by batteries (12). When a radiotelephone is bumped, the battery (12) can lose electrical contact with the radiotelephone. When power is interrupted (40), a timer is started (42). When the power is reapplied (44), the timer is sampled (46) and compared against a predetermined period of time. If the power was interrupted for a short time, then the radiotelephone is turned on (50). If the power was interrupted for a long time, then the radiotelephone stays off (48). The timer in the circuit is implemented as an RC circuit (26) starts to discharge. If the voltage level falls below Vref, the radiotelephone will not turn on when the power is reapplied.
摘要翻译： 无线电话机通常由电池供电（12）。 当无线电话机被撞击时，电池（12）可以失去与无线电话机的电接触。 当电源中断（40）时，启动定时器（42）。 当重新施加电源（44）时，定时器被采样（46）并与预定的时间段进行比较。 如果电源在短时间内中断，则无线电话机被打开（50）。 如果电源长时间中断，则无线电话机将停机（48）。 电路中的定时器被实现为RC电路（26）开始放电。 如果电压电平低于Vref，则在重新施加电源时，无线电话机将不会打开。
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公开(公告)号：US4715063A
公开(公告)日：1987-12-22
申请号：US889301
申请日：1986-07-21
IPC分类号： H04M9/08
摘要： Improved speakerphones (120 and 130 in FIG. 1) for both radio (112) and landline (138) telephones are described. The improved speakerphones (120 and 130) each include a microphone (102 and 132), a speaker (104 and 134) and unique control circuitry (106 and 136). The control circuitry of the improved speakerphone (200 in FIG. 2) interfaces a microphone (250) to a transmit signal (220) and speaker (260) to a receive signal (222) of a duplex communication path, such as a radio channel or telephone line. Variable gain stages (212 and 202) amplify and attenuate the speaker and microphone audio paths, respectively, in response to a gain control signal (223) from control logic (230). Transmit and receive signal detectors (206 and 207), each include gain adjust circuitry (208) a logarithmic amplifier (240), an envelope detector (241), a smoothing filter (245), a valley detector (242), a summer (243) and a comparator (244) for detecting the presence of audio signals in environments that may be subject to high background noise. Binary output signals from the transmit and receive signal detectors (206 and 207) are applied to control logic (230) which generates the gain control signal (223) and detector control signal (224). The control logic (230) includes delay circuitry (316 and 318) and gain control circuitry (392) for generating the gain control signal (223), the magnitude of which varies the amount of gain stages (202 and 212). Delay circuitry (316 and 318) and logic circuitry (304, 306, 308, 310, 312 and 314) in control logic (230) set and reset a flip-flop (302) for generating the detector control signals (224 and 225). Detector control signals (224 and 225) are coupled to gain adjust circuitry (208) and smoothing filter (245) for adjusting gain and response time of transmit and receive signal detectors (206 and 207).
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