Imperium Holdings has filed a lawsuit against Apple, Motorola, Nokia, RIM, Kyocera, LG, and Sony Ericsson for patent infringement. The court documents were filed last Friday in the Eastern District of Texas and all of the infringing products from the seven listed companies are mobile phones.
Imperium Holdings says that the seven companies infringed on five of its patents and is asking for damages and an injunction against the companies. The ‘651 patent describes “a solid state imaging device comprising a red pixel, blue pixel, a first green pixel, a second green pixel, two analog-to-digital converters and a color interpolation circuit.” The ‘715 patent involves a “CMOS image sensor comprises a plurality of pixels arranged in an array. The plurality of pixels includes a first pixel proximate an optical center of array, and a second pixel proximate a peripheral edge of the array.”
The ‘535 patent is “an improved semiconductor device that reduces reverse bias junction leakage in a photodiode by using a junction isolation region to isolate the photodiode from a trench isolation region. The improved semiconductor device improves image quality for different applications such as stand-alone digital cameras and digital cameras embedded in other imaging devices such as cellular phones and personal digital assistants.” The ‘768 patent describes “pixel correction system includes a dynamic range detection system that receives test pixel data and adjacent pixel data and determines whether the test pixel data is within minimum pixel characteristic data and maximum pixel characteristic data of the adjacent pixel data.”
The final patent is ‘884 which describes “an imager reduces lighting induced flicker by setting its pixel integration time to an integral multiple of the periods between peak intensity of the lighting. In one implementation, flicker is reduced in a 30 Hz frame rate camera capturing an image lighted with 50 Hz lighting by setting the integration time to approximately 10 ms, the period between lighting intensity peaks.”
[via The Loop]