Patent ID: 11908369
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. The contrast enhancement device of claim 17, wherein, when the first region diagnosis result data represent that N-th output channel test data are different from N-th reference channel test data, and the second region diagnosis result data represent that (N+4)-th output channel test data are different from (N+4)-th reference channel test data, wherein N is 1, 2, 3 or 4, an N-th channel process circuit among the first through fourth channel process circuits is determined to be faulty,
wherein, when the first region diagnosis result data represent that all of the first through fourth output channel test data are respectively different from the first through fourth reference channel test data, and the second region diagnosis result data represent that all of the fifth through eighth output channel test data are respectively equal to the fifth through eighth reference channel test data, the first region analysis circuit is determined to be faulty, and
wherein, when the first region diagnosis result data represent that all of the first through fourth output channel test data are respectively equal to the first through fourth reference channel test data, and the second region diagnosis result data represent that all of the fifth through eighth output channel test data are respectively different from the fifth through eighth reference channel test data, the second region analysis circuit is determined to be faulty.