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公开(公告)号：US6097973A
公开(公告)日：2000-08-01
申请号：US994734
申请日：1997-12-19
IPC分类号： H04B1/40 , H02J9/00 , H02J9/06 , H04B1/04 , H04B1/16 , H04B1/38 , H01Q11/12 , H02J3/32 , H03F3/04
CPC分类号： H04B1/1607 , H02J9/002 , H02J9/061 , H04B1/04
摘要： An electronic circuit (200) for a portable electronic device includes an energy source interface (202), a load (204) coupled to the energy source interface (202), an energy storage circuit (206) having a maximum operating voltage, and a switch circuit (208). The switch circuit (208) is coupled to the energy source interface (202) in series with the energy storage circuit (206). The switch circuit (208) operates to switchably decouple the energy storage circuit (206) in response to a voltage at the load (204) that exceeds the maximum operating voltage.
摘要翻译： 一种用于便携式电子设备的电子电路（200）包括能量源接口（202），耦合到能量源接口（202）的负载（204），具有最大工作电压的能量存储电路（206） 开关电路（208）。 开关电路（208）与能量存储电路（206）串联耦合到能量源接口（202）。 开关电路（208）响应于超过最大工作电压的负载（204）处的电压，可操作地使能量存储电路（206）解耦。
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52.发明授权Method of and apparatus for reducing a power consumption of a communication device 失效用于降低通信设备的功耗的方法和设备
公开(公告)号：US6049532A
公开(公告)日：2000-04-11
申请号：US866541
申请日：1997-05-30
申请人： Scott A. Steele , Louis J. Vannatta , Timothy P. Froehling , William P. Alberth, Jr. , Joseph F. Cramer, III
发明人： Scott A. Steele , Louis J. Vannatta , Timothy P. Froehling , William P. Alberth, Jr. , Joseph F. Cramer, III
CPC分类号： H04W52/0232 , Y02B60/50
摘要： A mobile station (102) has electrical circuitry (301) that operates to reduce power consumption. A synthesizer (318) is tuned so that a receiver (314) receives a home radio frequency (RF) signal during a receive slot (504) of a PCH subframe (209). A controller (310) detects if an upcoming subframe has an uplink requirement and if data from the home RF signal indicates that an idle condition exists. If the upcoming subframe does not have an uplink requirement, synthesizer (318) is tuned during a long idle slot (506) of PCH subframe (209) to measure signal strengths of two peripheral RF signals. If the idle condition does exist, electrical circuitry (301) is placed into a low power mode throughout a transmit slot (508), a receive slot (512), a long idle slot (514), and a transmit slot (516).
摘要翻译： 移动台（102）具有操作以降低功耗的电路（301）。 调谐合成器（318），使得接收机（314）在PCH子帧（209）的接收时隙（504）期间接收归属射频（RF）信号。 控制器（310）检测即将到来的子帧是否具有上行链路要求，并且来自归属RF信号的数据是否表示空闲条件存在。 如果即将到来的子帧没有上行链路要求，则在PCH子帧（209）的长空闲时隙（506）期间调谐合成器（318），以测量两个外围RF信号的信号强度。 如果空闲条件确实存在，则电路（301）在整个发送时隙（508），接收时隙（512），长空闲时隙（514）和发送时隙（516）中被置于低功率模式。
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公开(公告)号：US5930299A
公开(公告)日：1999-07-27
申请号：US694004
申请日：1996-08-08
CPC分类号： H04L27/2071
摘要： In a digital modulator with compensation, a digital bit stream from a microphone (705), a speech coder (706), and a channel encoder (707) is sent to an encoder (720) which translates the bits into I/Q digital pulses with phase shift keying. A symbol correlater (730) notes when predetermined target phase symbol sequences, which contribute to a high peak-to-average power ratio, enter the encoder. If a target symbol sequence is encountered, the correlater directs compensation amplifiers or compensation filters (734, 737) of the I/Q signals. Next, I/Q pulse shaping filters (764, 765) filter the I/Q pulses according to communication system specifications. The filtered I/Q signals are then sent to a quadrature modulator (790) for RF modulation. Compensation of target symbol sequences reduces the negative impact they have on peak-to-average power ratio and increases the efficiency of the power amplifier (795) which extends the battery life of a communication device (700).
摘要翻译： 在具有补偿的数字调制器中，来自麦克风（705），语音编码器（706）和信道编码器（707）的数字比特流被发送到编码器（720），其将比特转换成I / Q数字脉冲 带相移键控。 符号相关器（730）注意到当有助于高峰值与平均功率比的预定目标相位符号序列进入编码器时。 如果遇到目标符号序列，则相关器指示I / Q信号的补偿放大器或补偿滤波器（734,737）。 接下来，I / Q脉冲整形滤波器（764,765）根据通信系统规格对I / Q脉冲进行滤波。 然后将经滤波的I / Q信号发送到正交调制器（790）以进行RF调制。 目标符号序列的补偿减少了它们对峰值对平均功率比的负面影响，并且提高了延长通信设备（700）的电池寿命的功率放大器（795）的效率。
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公开(公告)号：US5613229A
公开(公告)日：1997-03-18
申请号：US624046
申请日：1996-03-25
CPC分类号： H02J7/0054 , H02J7/022 , H02M3/156 , H02J2007/0059
摘要： A power regulator (220) includes a power source output (303) for coupling to a power source. A switching circuit (345) controls the supply of power from the power source output to an energy storage circuit (334). An output (305) of the energy storage circuit has a controlled current in a current regulator mode. The output of the energy storage circuit has a substantially constant voltage in a voltage regulator mode.
摘要翻译： 功率调节器（220）包括用于耦合到电源的电源输出（303）。 开关电路（345）控制从电源输出到能量存储电路（334）的电力供应。 能量存储电路的输出（305）在电流调节器模式中具有受控电流。 在电压调节器模式中，能量存储电路的输出具有基本恒定的电压。
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公开(公告)号：US11132595B1
公开(公告)日：2021-09-28
申请号：US16891059
申请日：2020-06-03
摘要： An apparatus can include a plurality of antennas. The apparatus can include a first transceiver coupled to the plurality of antennas. The apparatus can include a second transceiver. The second transceiver can be an RFID transceiver. The apparatus can include a controller coupled to the first transceiver and coupled to the RFID transceiver. The controller can detect the presence of an RFID tag. The controller can retrieve, in response to detecting the presence of the RFID tag, information corresponding to the RFID tag. The information can include radio-frequency shielding information regarding electrically conductive material of an article of clothing. The controller can adjust the first transceiver based on the information retrieved corresponding to the RFID tag.
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公开(公告)号：US09621207B2
公开(公告)日：2017-04-11
申请号：US13567219
申请日：2012-08-06
IPC分类号： H04B1/10
CPC分类号： H04B1/1027
摘要： A communication device performs a method for detecting presence of a jamming signal. The method includes retrieving a scan list comprising multiple radio channels within a first frequency range of operation of the communication device. The method further includes scanning at least a subset of the channels on the scan list to determine, for each scanned channel, whether energy that exceeds an energy threshold is detected on the scanned channel. Moreover, the method includes determining a first quantitative measure based on a first plurality scanned channels having energy that exceeds the energy threshold, and comparing the first quantitative measure to at least a first jamming signal detection threshold. Additionally, the method includes indicating, on the communication device, presence of a jamming signal when the first quantitative measure satisfies the at least a first jamming signal detection threshold.
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公开(公告)号：US09531418B2
公开(公告)日：2016-12-27
申请号：US13568158
申请日：2012-08-07
摘要： A method and system performs antenna tuning to minimize interference affecting signal reception within a wireless communication device. An antenna tuner controller determines whether the wireless communication device concurrently provides (a) simultaneous signal transmission and reception and (b) dual signal propagation. In response to determining that the wireless communication device concurrently provides the simultaneous signal transmission and reception and the dual signal propagation, the antenna tuner controller determines a current mode of operation corresponding to simultaneous signal transmission and reception and the dual signal propagation. Based on the mode of operation determined, the antenna tuner controller identifies a priority for performing antenna isolation to minimize interference affecting signal reception when the wireless communication device actively communicates within the specific mode of operation. In response to the identifying the priority for performing antenna isolation, the antenna tuner controller performs antenna impedance tuning that provides antenna isolation corresponding to the priority.
摘要翻译： 方法和系统执行天线调谐以最小化在无线通信设备内影响信号接收的干扰。 天线调谐器控制器确定无线通信设备是否同时提供（a）同时信号发送和接收以及（b）双信号传播。 响应于确定无线通信设备同时提供同时信号发送和接收以及双信号传播，天线调谐器控制器确定与同时信号发送和接收以及双信号传播相对应的当前操作模式。 基于确定的操作模式，天线调谐器控制器识别执行天线隔离的优先级，以在无线通信设备在特定操作模式下主动通信时，最小化影响信号接收的干扰。 响应于识别执行天线隔离的优先级，天线调谐器控制器执行提供对应于优先级的天线隔离的天线阻抗调谐。
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公开(公告)号：US09161176B2
公开(公告)日：2015-10-13
申请号：US13586360
申请日：2012-08-15
摘要： Methods and apparatus for serving content to a wireless device (106) are disclosed. In an embodiment, a gateway (114), or any other suitable device or system, determines that at least one message (e.g., a text or text-like message) containing a first pointer (e.g., a unicast URL) to the content (e.g., a web page) is to be transmitted via an emergency alert system (e.g., CMAS). In response thereto, the gateway (114) obtains the content using the first pointer and generates a second different pointer (e.g., a multicast/broadcast URL) to the content. The gateway (114) provides at least a portion of the at least one message and the second pointer for transmission via the emergency alert system (118). The gateway (114) also provides the content for transmission via a wireless multicast/broadcast channel (120) based on the second pointer.
摘要翻译： 公开了向无线设备（106）提供内容的方法和装置。 在一个实施例中，网关（114）或任何其它合适的设备或系统确定包含内容的第一指针（例如，单播URL）的至少一个消息（例如，文本或文本消息） 例如，网页）将通过紧急警报系统（例如，CMAS）发送。 响应于此，网关（114）使用第一指针获得内容，并且生成第二不同的指针（例如，多播/广播URL）到内容。 网关（114）提供至少一个消息和第二指示符的至少一部分，用于经由紧急警报系统（118）传输。 网关（114）还基于第二指示器经由无线多播/广播信道（120）提供用于传输的内容。
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公开(公告)号：US09140782B2
公开(公告)日：2015-09-22
申请号：US13556081
申请日：2012-07-23
CPC分类号： G01S13/04 , G01S13/08 , G01S13/867 , G01S13/931 , G01S2013/9325 , G01S2013/936 , G01S2013/9375 , G01S2013/9378 , G01S2013/9382 , G01S2013/9385 , G08G1/162
摘要： An apparatus includes a video encoder, a camera and radio frequency modulation circuitry. The radio frequency modulation circuitry is operative to modulate a radar signal to include video data. A radar transmitter is operatively coupled to the radio frequency modulation circuitry, and is operative to transmit a radar signal including the video data. The apparatus may also include radio frequency demodulation circuitry and a video decoder. The video decoder is operative to decode video data contained in a radar signal demodulated by the radio frequency demodulation circuitry. An inter-vehicle alert system controls the camera to initiate capturing video data which includes the video data. A method of operation modulates a radar signal to include at least a portion of the video data captured in response to detecting an obstruction, and transmits the radar signal to a second vehicle via an antenna array oriented at the moving vehicle's rear.
摘要翻译： 一种装置包括视频编码器，照相机和射频调制电路。 射频调制电路可操作以调制雷达信号以包括视频数据。 雷达发射器可操作地耦合到射频调制电路，并且可操作地发送包括视频数据的雷达信号。 该装置还可以包括射频解调电路和视频解码器。 视频解码器用于解码包含在由射频解调电路解调的雷达信号中的视频数据。 车辆间警报系统控制相机发起捕获包括视频数据的视频数据。 一种操作方法，调制雷达信号以包括响应于检测到障碍物而捕获的视频数据的至少一部分，并且经由位于移动车辆后部的天线阵列将雷达信号发送到第二车辆。
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60.发明授权Method and apparatus for compensating for phase shift in a communication device 有权用于补偿通信设备中的相移的方法和装置公开(公告)号：US09048524B2
公开(公告)日：2015-06-02
申请号：US13565096
申请日：2012-08-02
IPC分类号： H04W88/02 , H04B1/40 , H04B1/38 , H01P1/18 , H04B1/04 , H04B1/18 , H03H7/20 , H03H7/40 , H01Q1/24
摘要： Various embodiments of methods and apparatus' for compensating for a phase shift on a communication device are described herein. In an embodiment, an antenna of a communication device is tuned based on a characteristic of the communication device, thereby causing a phase shift of a signal that is to be transmitted via the antenna. A property of the signal at the antenna after the phase shift is measured. The phase shift is compensated for based on the measured property.
摘要翻译： 本文描述了用于补偿通信设备上的相移的方法和装置的各种实施例。 在一个实施例中，基于通信设备的特性来调整通信设备的天线，从而导致经由天线发送的信号的相移。 在相移之后测量天线处的信号的特性。 基于测量的特性补偿相移。
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