专利检索 ap:("MOTOROLA SOLUTIONS INC") AND inv:"STENGEL ROBERT E" 第 1 页

1.

发明公开
SYSTEM AND METHOD FOR INTRODUCING DITHER FOR REDUCING SPURS IN DIGITAL-TO-TIME CONVERTER DIRECT DIGITAL SYNTHESIS 审中-公开
标题翻译：系统和方法抖动在数字 - 时间转换器直接数字频率合成异径马刺简介

公开(公告)号：EP1803215A4

公开(公告)日：2015-11-18

申请号：EP05796154

申请日：2005-09-14

申请人： MOTOROLA SOLUTIONS INC

发明人： GRADISHAR THOMAS L , STENGEL ROBERT E

IPC分类号： G06F1/025

CPC分类号： G06F1/025 , G06F2211/902

摘要： A direct digital synthesizer (DDS) ( 300 ) that uses a system for reducing spurious emissions in a digital-to-time converter (DTC) ( 317 ). The DDS ( 300 ) includes one or more dither sources ( 307 ) and a random access memory (RAM) ( 305 ). The RAM ( 305 ) utilizes a look-up table for storing delay error values by using an output of the look-up table which is combined with the dither source ( 307 ) to compensate unequal unit delay values in the DTC ( 317 ).

2.

发明公开
DIRECT DIGITAL SYNTHESIZER WITH VARIABLE REFERENCE FOR IMPROVED SPURIOUS PERFORMANCE 审中-公开
标题翻译：变量参考，以提高性能无故障的直接数字频率合成

公开(公告)号：EP2002541A4

公开(公告)日：2012-08-29

申请号：EP07758145

申请日：2007-03-08

申请人： MOTOROLA SOLUTIONS INC

发明人： CAFARO NICHOLAS G , GRADISHAR THOMAS L , STENGEL ROBERT E

IPC分类号： H03L7/08

CPC分类号： H03H11/265 , H03K5/131 , H03K2005/00065 , H03L7/1806