Patent ID: 11955101
Assignee: RENESAS ELECTRONICS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. A display control device which performs wireless communication with an external apparatus and displays an image in accordance with input information on a display apparatus, the display control device comprising:
a Central Processing Unit (CPU); and
a Graphics Processing Unit (GPU),
wherein the CPU is configured to:
cause the external apparatus to draw a first image in accordance with the input information by transmitting the input information to the external apparatus via the wireless communication;
determine whether a received radio wave is in a good state or a bad state;

when a determination result is that the received radio wave is in the good state,
acquire the first image drawn by the external apparatus via the wireless communication, and display the first image on the display apparatus; and
when the determination result is that the received radio wave is in the bad state, cause the GPU to draw a second image in accordance with the input information and display the second image drawn by the GPU on the display apparatus,

wherein the CPU is configured to output a drawing start instruction to the GPU even when the determination result is that the received radio wave is in the good state,
wherein, when the determination result is that the received radio wave is in the good state, the GPU is configured to ignore the drawing start instruction from the CPU,
wherein the display control device further comprises a decoder which is configured to decode the first image encoded after being drawn by the external apparatus,
wherein the decoder is configured to output a decode end notification when decoding is completed, and
wherein, when the determination result is that the received radio wave is in the good state, the GPU is configured to output a drawing end notification to the CPU in response to the decode end notification from the decoder after ignoring the drawing start instruction from the CPU.