Apparatus and method for pcr diagnosis based on multi-wavelength light source and orthogonal code signals

A polymerase chain reaction (PCR) diagnosis apparatus comprising:

• a transmitter including a multi-wavelength light source for outputting a first light source signal and a second light source signal having different wavelengths, and configured to apply the first light source signal and the second light source signal to a PCR chip including samples each including a plurality of DNAs;
• a code generator configured to generate first code signal and second code signal corresponding to the first light source signal and the second light source signal, respectively, and being orthogonal to each other;
• and
• a receiver configured to perform a dot product on fluorescent data and each of the first code signal and the second code signal, wherein the fluorescent data include a first fluorescent signal and a second fluorescent signal emitted from a phosphor attached to each of the plurality of DNAs,
• wherein the first fluorescent signal is emitted from a first phosphor attached to a first DNA among the plurality of DNAs in response to the first light source signal, and the second fluorescent signal is emitted from a second phosphor attached to a second DNA among the plurality of DNAs in response to the second light source signal.