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2. 发明公开

KR1020050085752A 믹서 시스템, 장치 및 신호의 주파수 변환 방법 无效
标题翻译：具有AMPLITUDE，共模和相位校正的混频器系统
公开(公告)号：KR1020050085752A
公开(公告)日：2005-08-29
申请号：KR1020057011304
申请日：2003-11-20
申请人： 코닌클리케 필립스 엔.브이.
发明人： 반신더렌잔 , 노텐마르크지엠
IPC分类号： H03D3/00 , H03D7/16
CPC分类号： H03D7/14 , H03D3/009
摘要： Mixer-systems (1) comprising mixer- circuits (2) with mixers (3) for frequency translating signals comprising audio/video information and for use in mobile phones or television receivers are provided with amplitude detectors (6) for making amplitude corrections during said frequency translating of said signals comprising audio/video information (basic idea), to correct amplitude errors resulting (insight) from designs with integration technologies based upon small transistors (with small transistors having a size such that phase errors are no longer dominating the performance). Said mixer-circuit (2) comprises amplifier-circuits (3,4) with controllable gains, and said amplitude detectors (6) comprise level detectors (61,62) and amplifiers (63). Further amplitude detectors (7,8,9) make common-mode corrections and comprise either level detectors (71,72,81,82) and amplifiers (73,83) or adders (91) and level detectors (92) and amplifiers (93) and range detectors (94) and inverters (95). Amplifier-circuits (4,5) comprise amplifiers (41,51) with adjustable resistor-elements (42,43,52,53) and with further adjustable resistor-elements (44,45,54,55) for making phase corrections.
摘要翻译：包括具有混频器（3）的混频器系统（1），其具有用于频率转换信号（包括音频/视频信息）并用于移动电话或电视接收机的混频器（3），其具有幅度检测器（6），用于在所述包括音频/视频信息（基本思想）的所述信号的频率转换，以校正基于基于小晶体管的集成技术（具有尺寸使得相位误差不再主导性能的小晶体管）的设计导致（洞察）的振幅误差，。所述混频器电路（2）包括具有可控增益的放大器电路（3,4），所述振幅检测器（6）包括电平检测器（61,62）和放大器（63）。进一步的幅度检测器（7,8,9）进行共模校正，包括电平检测器（71,72,81,82）和放大器（73,83）或加法器（91）和电平检测器（92）和放大器 93）和量程检测器（94）和逆变器（95）。放大器电路（4,5）包括具有可调节电阻元件（42,43,52,53）的放大器（41,51）和用于进行相位校正的进一步可调节的电阻元件（44,45,54,55）。

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