A projector includes an illumination optical system, an image formation element that spatially modulates light from the illumination optical system, and a projection lens that projects the spatially modulated light. The system and method provide error correction to enable a defective logic function implemented within an IC chip design to be replaced, wherein at least one embedded FPGA is provided in the IC chip to perform a logic function. In one embodiment, the digital control circuit implements a binary jump method and an operating curve is selected when the operating curve has an output frequency meeting the target frequency with the control voltage being within a first voltage range being a narrowed and centered voltage range within the control voltage range. The first network element analyzes the multimedia session information for urgent emergency circumstances. A typical embodiment is a mixture of Pluronics F127 and L61.