Patent ID: 11887607
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. The apparatus according to claim 11, wherein the programming instructions for execution by the at least one processor, when executed by the at least one processor cause the encoding apparatus further to:
perform secondary channel closed-loop pitch period search based on the estimated pitch period value of the first primary channel signal, to obtain an estimated pitch period value of the first secondary channel signal;
determine an upper limit of the pitch period index value of the first secondary channel signal based on a pitch period search range adjustment factor of the first secondary channel signal; and
calculate the pitch period index value of the first secondary channel signal based on the estimated pitch period value of the first primary channel signal, the estimated pitch period value of the first secondary channel signal, and the upper limit of the pitch period index value of the first secondary channel signal.