Mr Cheng passed away before one of the neighbours, who was a nurse, tried to perform PCR.
According to the Australian Associated Press, Mr Brown attended the supreme court on Tuesday this week.
Justice John Champion sentenced Mr Brown to 24 years in prison for the “savage and sustained attack” on his wife while their two-year-old son was in the same house.
The judge rejected Mr Brown’s claim that they had stabbed each other.
“I accept an argument took place, but do not conclude Ms Cheng initially attacked you,” Justice Champion said.
“Ms Cheng fought for her life against your attack on her … she was terrified of what was occurring,” Justice Champion added.
Mr Brown has already served more than a year of his sentence and will be eligible for parole after 17-and-a-half years.
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