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| Number | Title | Issue Date |
| 7439944 | Light emitting diode multiphase driver circuit and method A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled to ground through separate conductive paths. A phase switch is provi... | 10/21/2008 |
