Patent ID: 11908364
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G  H

Claim 0:
1. A display driving circuit for outputting a still image, the display driving circuit comprising:
a memory configured to store an input bit stream encoded by a first encoder based on said still image;
a normal data path including a first decoder;
a low-power data path including a second decoder;
a controller configured to selected one of the normal data path and the low-power data path through which output frame data in a second frame period passes according to whether internal encoding is successful in a first frame period,
wherein, when the internal encoding is successful, the controller is configured to perform internal encoding in the second frame period, to store a generated internal bit stream in the memory, to allow the internal bit stream to pass through the low-power data path to generate the output frame data, and
when the internal encoding fails, the controller is configured to generate the output frame data by allowing the input bit stream to pass through the normal data path in the second frame period, to change an encoding setting of an internal encoder, and to repeat the internal encoding.