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It was shown by Ahn, Wiseman, and Milburn [PRA {\bf 67}, 052310 (2003)] thatfeedback control could be used as a quantum error correction process for errorsinduced by weak continuous measurement, given one perfectly measured errorchannel per qubit. Here we point out that this method can be easily extended toan arbitrary number of error channels per qubit. We show that the feedbackprotocols generated by our method encode $n-2$ logical qubits in $n$ physicalqubits, thus requiring just one more physical qubit than in the previous case.Comment: 4 page

Quantum error correction for continuously detected errors with any number of error channels per qubit