A light-emitting apparatus and a camera system including the same are disclosed. The contact pad supporting structure includes an underlying first conductive plate and an overlying second conductive plate, wherein the first and second conductive plates are separated by a first dielectric layer. The resultant of this combination is used as the key to the cryptographic engine. The different hash buckets are then assigned to the processors based on the workload of all the processors. The assistant signal and the SAIC equalizer output are used to estimate the frequency error, which is combined with the SAIC equalizer output and the assistant signal to give the frequency error corrected SAIC equalizer output.