专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US08559488B1 On-chip IQ imbalance and LO leakage calibration for transceivers 有权
标题翻译：用于收发器的片上IQ不平衡和LO泄漏校准
公开(公告)号：US08559488B1
公开(公告)日：2013-10-15
申请号：US13611808
申请日：2012-09-12
申请人： Lydi Smaini , Neric Fong , Sang Won Son , Bo Wang
发明人： Lydi Smaini , Neric Fong , Sang Won Son , Bo Wang
IPC分类号： H04B1/38
CPC分类号： H04B1/40 , H03D2200/0045 , H03D2200/0082 , H03D2200/009 , H04B1/30
摘要： The disclosure can provide methods and systems for autocalibrating a transceiver. The method can include upconverting a bandpass input signal by mixing the bandpass input signal with a first local oscillator signal to form an initial transmitter signal. The initial transmitter signal can be looped back to a receiver and downconverted with a second local oscillator signal having a frequency that is different from the first local oscillator to form an intermediate frequency signal. At least one of a gain and a phase of the transmitter can be adjusted based on a transmitter image sideband of the intermediate frequency signal to generate a calibrated transmitter signal having minimized transmitter image sideband.
摘要翻译：本公开可以提供用于自动校准收发器的方法和系统。该方法可以包括通过将带通输入信号与第一本地振荡器信号混合以形成初始发射机信号来上变频带通输入信号。初始发射机信号可以环回到接收机，并且与具有不同于第一本地振荡器的频率的第二本地振荡器信号下变频以形成中频信号。可以基于中频信号的发射机图像边带来调整发射机的增益和相位中的至少一个，以生成具有最小化的发射机图像边带的经校准的发射机信号。

12. 发明授权

US08320860B1 Clean spot detection for FM transmission 有权
标题翻译：清洁点检测用于FM传输
公开(公告)号：US08320860B1
公开(公告)日：2012-11-27
申请号：US13117460
申请日：2011-05-27
申请人： Patrick Clement , Lydi Smaini , Pantas Sutardja
发明人： Patrick Clement , Lydi Smaini , Pantas Sutardja
IPC分类号： H04B7/08
CPC分类号： H04B1/034
摘要： Methods and apparatuses for quiet spot detection for radio frequency transmission thereon. According to various embodiments, a device may include a local receiver configured to evaluate one or more frequencies of a frequency band to determine a quiet spot frequency, the device further including a local transmitter configured to transmit signals at the quiet spot frequency.
摘要翻译：用于无线电频率传输的安静点检测的方法和装置。根据各种实施例，设备可以包括被配置为评估频带的一个或多个频率以确定安静点频率的本地接收机，该设备还包括被配置为以安静点频率发射信号的本地发射机。

13. 发明授权

US07738597B2 Frequency transposition method and device, in particular for the control of the transmission power of a cellular mobile telephone 有权
标题翻译：频率转置方法和装置，特别是用于控制蜂窝移动电话的发射功率
公开(公告)号：US07738597B2
公开(公告)日：2010-06-15
申请号：US11053179
申请日：2005-02-08
申请人： Lydi Smaini , Patrick Cerisier , Philippe Gouessant
发明人： Lydi Smaini , Patrick Cerisier , Philippe Gouessant
IPC分类号： H03K9/00
CPC分类号： H03G3/3036 , H03D7/1433 , H03D7/1458 , H03D7/165
摘要： A frequency transposition device including an input terminal for receiving an incident signal SI and a modulator of the one-bit delta-sigma type MDU connected to the input terminal. A generator MGN provides a periodic auxiliary signal SAX with a frequency equal to a desired transposition frequency. A frequency transposer of the Gilbert cell type has a signal input BES connected to the output of the generator, a control input BCO connected to the output of the delta-sigma modulator MDU, and an output BS delivering a transposed signal STR.
摘要翻译：一种频率转置装置，包括用于接收入射信号SI的输入端和连接到输入端的一比特Δ-Σ型MDU的调制器。发电机MGN提供具有等于期望的转置频率的频率的周期性辅助信号SAX。吉尔伯特单元类型的频率转换器具有连接到发生器的输出的信号输入BES，连接到Δ-Σ调制器MDU的输出的控制输入BCO以及传送转置信号STR的输出BS。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式