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公开(公告)号：US5625271A
公开(公告)日：1997-04-29
申请号：US546476
申请日：1995-10-20
CPC分类号： H02J7/0042 , H01M10/46
摘要： A battery charger adapter (100) has a housing receptacle (102) formed as a battery for a cellular telephone. The housing receptacle (102) has a recessed portion (104) formed in a base surface (106) of the housing receptacle (102) for receiving a battery pack (200) to be charged, at least one holding clip (108, 110) for securing the battery pack (200) in the recessed portion (104), an electrical coupler (112) for coupling the battery pack (200) to the housing receptacle (102) and an access port (114), coupled to the electrical coupler (112), for electrically coupling the housing receptacle (102) to a charger for enabling the battery pack (200) to be charged in the battery charger adapter (100).
摘要翻译： 电池充电器适配器（100）具有形成为用于蜂窝电话的电池的壳体插座（102）。 壳体插座（102）具有形成在壳体插座（102）的基座表面（106）中的凹部（104），用于接收要充电的电池组（200），至少一个保持夹（108,110） 用于将所述电池组（200）固定在所述凹部（104）中，用于将所述电池组（200）耦合到所述壳体插座（102）的电耦合器（112）和连接到所述电耦合器 （112），用于将所述壳体插座（102）电耦合到充电器，以使所述电池组（200）能够充电到所述电池充电器适配器（100）中。
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公开(公告)号：US5483246A
公开(公告)日：1996-01-09
申请号：US317057
申请日：1994-10-03
CPC分类号： H01Q13/206 , H01Q1/36
摘要： An omnidirectional antenna (100) includes a resonator (102) and a ground plane (104). The resonator (102) includes a dielectric substrate (402) having a top conductive plate (404) and a bottom conductive plate (406), wherein the top conductive plate (404) is shorted to the bottom conductive plate (406) proximal to a first end (436) and open at a second end (438) of the dielectric substrate (402), a resonator feed (416) having a location between the first (436) and second (438) ends, a first resonator ground (424) and a second resonator ground (408) coupled between the bottom conductive plate (406) and the ground plane (104), the first resonator ground (424) being contiguous to the bottom conductive plate (406) and having a location which is distal to the first end (436) for suppressing undesirable resonator resonance, and the second resonator ground (408) being contiguous to the bottom conductive plate (406) and having a location which is proximal to the first end (436) for controlling a radiation pattern of the resonator (102) to produce a substantially omnidirectional antenna beam pattern.
摘要翻译： 全向天线（100）包括谐振器（102）和接地平面（104）。 谐振器（102）包括具有顶部导电板（404）和底部导电板（406）的电介质基板（402），其中顶部导电板（404）与靠近一个导电板（404）的底部导电板（406）短路 第一端（436）并且在电介质基板（402）的第二端（438）处开放，具有在第一（436）和第二（438）端之间的位置的谐振器馈电（416），第一谐振器接地（424 ）和耦合在所述底部导电板（406）和所述接地平面（104）之间的第二谐振器接地（408），所述第一谐振器接地（424）与所述底部导电板（406）邻接并且具有远端的位置 到第一端（436），用于抑制不期望的谐振器谐振，并且第二谐振器接地（408）邻近底部导电板（406）并且具有靠近第一端（436）的位置，用于控制辐射图 的谐振器（102）以产生基本上全向的 天线波束图案。
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公开(公告)号：USD374860S
公开(公告)日：1996-10-22
申请号：US38692
申请日：1995-05-08
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公开(公告)号：US5263197A
公开(公告)日：1993-11-16
申请号：US762759
申请日：1991-09-20
IPC分类号： H03B1/00 , H03B5/36 , H03B19/14 , H03B25/00 , H03D7/16 , H03J5/02 , H04B1/28 , H04B1/30 , H04B1/26
CPC分类号： H03J5/0272 , H03B25/00 , H04B1/28 , H04B1/30 , H03B19/14 , H03B2201/011 , H03B2201/0208 , H03B5/362 , H03D7/16
摘要： A two-stage direct conversion receiver. A first mixer (13) converts the incoming signal to an intermediate frequency (IF) signal. A second mixer (16) converts the IF signal to a baseband signal. A detector (17), receiver logic circuit (18), and alerting device circuit (19) act upon the baseband output signal. A two port oscillator (14) provides a fundamental frequency output (FO) and a tripled output frequency (3 FO). The tripled output frequency is again tripled (9 FO) by a frequency multiplier (15) and is provided as a mixing signal to the first mixer (13). The fundamental frequency output is provided to a phase locked loop (20, 21, 22). The output frequency (FV) of the phase locked loop is doubled (2 FV) by a frequency multiplier (23) and provided to a phase shift circuit (24). The output of the phase shift circuit (24) is provided as the second mixing signal to the second mixer (16). The phase locked loop comprises a phase locked loop controller (20), a phase locked loop filter (21), and a voltage controlled oscillator (22). The main oscillator (14) is configured as a crystal controlled Colpitts oscillator, which has an emitter resonant circuit selected to produce oscillation at the fundamental frequency, and a collector resonant circuit selected to extract the third harmonic of the fundamental oscillation frequency. A single active device can therefore provide both the fundamental frequency and the third harmonic frequency. Calibration of the receiver is effected by simply tuning the oscillator (14) to produce a baseband output signal at the output of the second mixer (16). Single step calibration is therefore effected because the voltage controlled oscillator (22) is locked to the main oscillator (14).
摘要翻译： 两级直接转换接收机。 第一混频器（13）将输入信号转换成中频（IF）信号。 第二混频器（16）将IF信号转换为基带信号。 检测器（17），接收器逻辑电路（18）和报警装置电路（19）作用于基带输出信号。 双端口振荡器（14）提供基频输出（FO）和三倍输出频率（3 FO）。 倍增输出频率由倍频器（15）再三倍（9F），并作为混合信号提供给第一混频器（13）。 基频输出被提供给锁相环（20,21,22）。 锁相环的输出频率（FV）由倍频器（23）加倍（2 FV），并提供给相移电路（24）。 将相移电路（24）的输出作为第二混频信号提供给第二混频器（16）。 锁相环包括锁相环控制器（20），锁相环滤波器（21）和压控振荡器（22）。 主振荡器（14）被配置为晶体控制的Colpitts振荡器，其具有选择用于产生基频振荡的发射极谐振电路和选择为提取基波振荡频率的三次谐波的集电极谐振电路。 因此，单个有源器件可以提供基频和三次谐波频率。 通过简单地调谐振荡器（14）来在第二混频器（16）的输出处产生基带输出信号来实现接收机的校准。 因此，单步校准是因为压控振荡器（22）被锁定到主振荡器（14）。
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