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    • 67. 发明授权
    • Device for controlling the connection of a built-in type ear-microphone for portable radio terminal
    • 用于控制用于便携式无线电终端的内置式耳麦连接的装置
    • US06397087B1
    • 2002-05-28
    • US09436290
    • 1999-11-08
    • Dong-Ho KimJung-Wook Hwang
    • Dong-Ho KimJung-Wook Hwang
    • H04B138
    • H04M1/6058H04B1/3877H04M1/05H04R1/083H04R1/10H04R1/1016H04R1/1041H04R2201/107H04R2420/05
    • A device for controlling connection of a built-in type ear-microphone for a portable radio terminal includes a vocoder, which has the speaker and microphone amplifier of the portable radio terminal and an ear-microphone amplifier; a first logic combination means for logically combining a signal output from the speaker amplifier and a signal output from the ear-microphone amplifier so as to prevent generation of noises due to short-circuit of a microphone signal and a speaker signal while an earphone plug is inserted in an earphone jack; a comparator for comparing an electric signal sensed at the earphone jack with a reference voltage; a second logic combination means for logically combining an output of the first logic combination means and an output of the comparator to generate a jack detection signal; and a central processing unit for generating a control signal for enabling the vocoder to switch an audio signal path to the ear-microphone amplifier, upon detection of the jack detection signal during a call.
    • 用于控制用于便携式无线电终端的内置式耳麦麦克风的连接的装置包括具有便携式无线电终端的扬声器和麦克风放大器的声码器和耳麦式放大器; 第一逻辑组合装置,用于逻辑地组合来自扬声器放大器的信号和从麦克风放大器输出的信号的信号,以防止由于麦克风信号和扬声器信号的短路而产生噪声,而耳机插头是 插入耳机插孔; 用于将在耳机插孔处感测到的电信号与参考电压进行比较的比较器; 第二逻辑组合装置,用于逻辑地组合第一逻辑组合装置的输出和比较器的输出,以产生插座检测信号; 以及中央处理单元,用于在呼叫期间检测到插座检测信号时,生成用于使声码器能够切换到麦克风放大器的音频信号路径的控制信号。
    • 69. 发明授权
    • Small antenna using SRR structure in wireless communication system and method for manufacturing the same
    • 无线通信系统中使用SRR结构的小天线及其制造方法
    • US08525731B2
    • 2013-09-03
    • US12913985
    • 2010-10-28
    • Jeongho JuJae-Ick ChoiWangjoo LeeDong-Ho Kim
    • Jeongho JuJae-Ick ChoiWangjoo LeeDong-Ho Kim
    • H01Q1/38
    • H01Q9/42H01Q1/243H01Q1/36H01Q9/0407
    • A small antenna using an SRR structure in a wireless communication system includes: a first radiation unit positioned over a dielectric substrate formed of a predetermined dielectric medium and having a predetermined ring shape; a feed unit positioned over the dielectric substrate and configured to feed a signal to the first radiation unit; a second radiation unit positioned under the dielectric substrate and having a predetermined ring shape; a via formed through the dielectric substrate to connect the first and second radiation units; a ground unit positioned under the dielectric substrate and configured to ground the first and second radiation units; and a metal line unit positioned under the dielectric substrate to connect the second radiation unit and the ground unit. The feed unit includes first and second capacitors which accomplish impedance matching when the signal is fed to the first radiation unit.
    • 在无线通信系统中使用SRR结构的小天线包括:第一辐射单元,其位于由预定电介质形成且具有预定环形的电介质基板上; 定位在所述电介质基底上并被配置为将信号馈送到所述第一辐射单元的馈送单元; 第二辐射单元,位于所述电介质基底下方并具有预定的环形; 通过所述电介质基板形成的通孔,以连接所述第一和第二辐射单元; 位于所述电介质基板下方并被配置为对所述第一和第二辐射单元进行接地的接地单元; 以及位于所述电介质基板下方的金属线单元,以连接所述第二辐射单元和所述接地单元。 馈送单元包括当信号被馈送到第一辐射单元时实现阻抗匹配的第一和第二电容器。