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公开(公告)号:USD530292S1
公开(公告)日:2006-10-17
申请号:US29205593
申请日:2004-05-17
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公开(公告)号:USD528087S1
公开(公告)日:2006-09-12
申请号:US29209842
申请日:2004-07-21
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公开(公告)号:US07006040B2
公开(公告)日:2006-02-28
申请号:US10020703
申请日:2001-11-30
申请人: John G. N. Henderson , Carl Scarpa
发明人: John G. N. Henderson , Carl Scarpa
IPC分类号: H01Q3/24
CPC分类号: H01Q1/007 , H01Q1/24 , H01Q3/2611 , H01Q7/005
摘要: Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL. In this manner the received signal's S/N ratio can be maximized thereby facilitating demodulation. The techniques of the invention can be applied to television, computer devices, mobile devices and a wide range of other systems. Digital commands to control an antenna may include multiple information fields, e.g., a direction field, a channel field, a gain field and a polarity field. Antennas incapable of supporting the specified fields disregard information in fields which are not supported. Information in each supported field is decoded and used to adjust the corresponding antenna characteristic.
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公开(公告)号:USD434015S
公开(公告)日:2000-11-21
申请号:US110225
申请日:1999-09-01
申请人: Shinji Oe , John F. Novak
设计人: Shinji Oe , John F. Novak
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公开(公告)号:USD533171S1
公开(公告)日:2006-12-05
申请号:US29210466
申请日:2004-07-29
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公开(公告)号:USD533170S1
公开(公告)日:2006-12-05
申请号:US29210464
申请日:2004-07-29
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公开(公告)号:USD545811S1
公开(公告)日:2007-07-03
申请号:US29210477
申请日:2004-07-29
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公开(公告)号:USD531592S1
公开(公告)日:2006-11-07
申请号:US29210467
申请日:2004-07-29
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公开(公告)号:USD531591S1
公开(公告)日:2006-11-07
申请号:US29210465
申请日:2004-07-29
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公开(公告)号:USD519090S1
公开(公告)日:2006-04-18
申请号:US29205164
申请日:2004-05-10
申请人: A. Michael Forlenza
设计人: A. Michael Forlenza
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