US 12,356,037 B2
Controller and system comprising same
Dongsung Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/246,104
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 21, 2020, PCT No. PCT/KR2020/012722
§ 371(c)(1), (2) Date Mar. 21, 2023,
PCT Pub. No. WO2022/059825, PCT Pub. Date Mar. 24, 2022.
Prior Publication US 2023/0370671 A1, Nov. 16, 2023
Int. Cl. H04N 21/422 (2011.01); G06F 3/16 (2006.01)
CPC H04N 21/42222 (2013.01) [G06F 3/167 (2013.01); H04N 21/42203 (2013.01); H04N 21/42221 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A control device comprising:
an external device interface unit configured to communicate with an image display apparatus;
a microphone; and
a controller configured to:
determines an angle and a distance between the control device and the image display apparatus, based on a signal transmitted and received through the external device interface unit,
generates a compensation signal corresponding to a voice signal transmitted to the image display apparatus based on a voice input is-received through the microphone,
correct a phase of the compensation signal according to the determined angle,
correct an amplitude of the compensation signal according to the determined distance, and
process the voice input based on the corrected compensation signal.