The state broadcaster is trying to register the opening music of its daily show as a brand.
A sound trademark highlights audio cues that can distinguish the origin of products or services.
A good example is the American motorcycle brand Harley Davidson, which, in 1994, filed a sound trademark application for its distinctive V-twin engine sound.
China began to receive sound brand applications when it enacted its new trademark law on May 1 last year.
The state trademark administration says the approving process for CRI's sound brand will take some time.
