发明名称 |
METHOD AND DEVICE FOR DRIVING A LAMP |
摘要 |
<p>A method for driving a lamp (2) comprises the steps of: generating a lamp current (ICONST) having a constant magnitude; defining a commutation period having a duration TCOMM; defining a time base of original commutation moments, having fixed mutual intervals of 0.5*TCOMM; receiving data to be embedded in the light output; commutating the lamp current at commutation moments; wherein individual commutations are time-modulated in order to encode said received data. Preferably, a commutation moment is: either equal to an original commutation moment if there are no data to embed; or advanced over a modulation distance (Δ) with respect to the corresponding original commutation moment in order to encode data having a first value (“0”); or delayed over said modulation distance (Δ) with respect to the corresponding original commutation moment in order to encode data having a second value (“1”).</p> |
申请公布号 |
KR20120096923(A) |
申请公布日期 |
2012.08.31 |
申请号 |
KR20127002544 |
申请日期 |
2010.01.07 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
SCHENK TIM C. W.;COLAK SEL B.;WERNARS JOHANNES P.;LINNARTZ JOHAN P. M. G.;FERI LORENZO;DAMINK PAULUS H. A.;PENNING DE VRIES HENDRICUS T. G. M. |
分类号 |
H05B37/02 |
主分类号 |
H05B37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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