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公开(公告)号：EP1706951A1
公开(公告)日：2006-10-04
申请号：EP04804418.4
申请日：2004-12-30
发明人： BUHE, Gerrit , HAUPT, Axel , PLATH, Frank , WATERMANN, Jan
CPC分类号： H04R1/005 , H04B7/0608 , H04B7/0613 , H04H60/04 , H04L7/0029 , H04R1/08 , H04R2420/07
摘要： The invention relates to a method for the transmission of digitised audio information with high quality and little delay, in particular, methods for the transmission of digitised audio information in an audio pick-up (microphone) and/or playback line. According to the invention, a channel filter is disclosed, applied to shape the high frequency spectrum of the transmission, whereby the spectrum has no damping in a first region, from roughly 100 to 300 kHz useful bandwidth and, in a region outside the first region, has a stop-band attenuation of, in particular, more than 60 dB, or more than 80 dB.
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公开(公告)号：EP1616396A1
公开(公告)日：2006-01-18
申请号：EP04723979.3
申请日：2004-03-29
发明人： FEHR, Matthias , NIEHOFF, Wolfgang , PLATH, Frank
IPC分类号： H04B5/06
CPC分类号： H04B1/0458 , H01Q1/088 , H01Q1/22 , H01Q1/273 , H04B7/0802 , H04R1/08
摘要： The invention relates to a wireless microphone system. One aim of the invention is to further develop such wireless microphone systems while another aim thereof is to improve the intermodulation distance between HF transmitters so as to allow a greater number of transmitters to be used in the same frequency band. Said aim is achieved by a wireless microphone system comprising antennas that are connected thereto, a circulator and/or an HF isolator being connected to the antennas or antenna.
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公开(公告)号：EP2332211A1
公开(公告)日：2011-06-15
申请号：EP09782457.7
申请日：2009-09-01
发明人： PLATH, Frank
摘要： An antenna unit comprising an antenna element (122) and at least one high-dielectric supplemental element (123) is provided, said supplemental element being disposed near the antenna element (122).
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