U.S.Patent Dec.8,2020 Sheet 1 of 9 US10,862,817B2 Routing device 12 Transmit Receive end 10 end 11 FIG.1 Radio frequency Mobile phone circuit 110 Audio -il Speaker 151 Memory circuit 150 Microphone 152 120 Processor 160 Power supply 170 Input unit 130 Display unit 140 Touch panel 131 Display panel Another input 141 device 132 FIG 2U.S. Patent Dec. 8 , 2 2020 Sheet 1 of 9 US 10,862,817 B2 Routing device 12 Transmit end 10 Receive end 11 FIG . 1 Radio frequency Mobile phone circuit 110 Speaker 151 Audio Memory circuit 150 120 + Microphone 152 Processor 160 Power supply 170 Input unit 130 Display unit 140 Touch panel 131 Another input device 132 Display panel 141 FIG . 2