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专利名称：TRANSMISSION SPECTRA
发明人：Winfrid Birth
申请号：US12097100
申请日：20061212
公开号：US2A1
公开日：20090702
专利附图：
摘要：The present invention relates to transmitter devices and transmission methods
of transmitting a modulated GMSK- or EDGE-signal in a transmission system, wherein
normally the pulse shaping follows the given rules of standards for these mobile radio
systems. The amount of TX spectra in the adjacent TX channels is predetermined by
these rules. A second filtering step is suggested to be introduced for attenuating
predetermined unwanted spectra in the adjacent transmit channels. A second goal of this
suggestion is to reduce spectra at adjacent TX channels also at cases of nonlinearity at
the TX Power Amplifier of the RF transmitter Nothing must be changed in standards of
mobile communication systems, for example GSM.
申请人：Winfrid Birth
地址：Veitsbronn DE
国籍：DE
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