Patent ID: 11894878
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A method for electromagnetic interference control, for an electronic device comprising a display screen and a modem, the method comprising:
obtaining a target operating frequency of the modem, in condition of the display screen being in a screen-on state, in response to the electronic device being in a call state;
obtaining a first mobile industry processor interface (MIPI) operating frequency of an MIPI of the display screen;
determining a second MIPI operating frequency corresponding to the call state in response to determining the target operating frequency being interfered based on the first MIPI operating frequency, wherein interference of the second MIPI operating frequency to the target operating frequency is less than interference of the first MIPI operating frequency to the target operating frequency;
adjusting an MIPI operating frequency of the display screen to the second MIPI operating frequency; and
during adjusting the MIPI operating frequency of the display screen to the second MIPI operating frequency,
determining a reference screen parameter value of the display screen according to a frame rate calculation equation and the second MIPI operating frequency when an amount of change in a frame rate of the display screen after MIPI frequency switching is less than a first threshold; and
adjusting a screen parameter of the display screen dynamically according to the reference screen parameter value to a target screen parameter value, wherein the screen parameter comprises at least one of the following porch values in the frame rate calculation equation: horizontal back porch (HBP), horizontal front porch (HFP), vertical back porch (VBP), vertical front porch (VFP), vertical sync active (VSA), or horizontal sync active (HSA).