Coding method, coding device, decoding method, decoding device, data transmitting device and data receiving device

The invention provides a coding method, comprising the steps of detecting a first bit stream to obtain a first detection result; inserting an identification bit in the first bit stream according to the first detection result to form a second bit stream; wherein, the difference of the bit number of the first bit stream and the bit number of the second bit stream is 1. A decoding method comprises the steps of detecting a specific bit collection in the first bit stream to generate the first detection result, wherein, the specific bit collection comprises at least one bit; transforming the first bit stream into the second bit stream according to the first detection result; wherein, the difference of the bit number of the first bit stream and the bit number of the second bit stream is 1. By the coding method of the invention, the sacrificial bandwidth during the data transmission can be reduced, the energy loss is reduced, the coding quality is improved, the coding elasticity is increased and/ or the transceiver end circuit dimension is saved.