Invention Grant
- Patent Title: Electronic device and control method thereof
- Patent Title (中): 电子装置及其控制方法
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Application No.: US14139907Application Date: 2013-12-24
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Publication No.: US09413304B2Publication Date: 2016-08-09
- Inventor: Jae-cheol Lee , Byung-soo Kim , Joo-moon Youn , Kee-yeong Cho
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2012-0152197 20121224
- Main IPC: H03F1/00
- IPC: H03F1/00 ; H03F3/02 ; H03F3/181 ; H03F3/20 ; H03F5/00
Abstract:
An electronic device includes an amplifier which is configured to amplify a sound signal and includes a vacuum tube including a heater configured to heat the vacuum tube; a voltage supply which is configured to supply a first voltage and a second voltage which is higher than the first voltage; and a controller which is configured to control the voltage supply to supply the second voltage to the heater in response to supply of a drive voltage to the amplifier being started and to supply the first voltage to the heater if the vacuum tube reaches a predetermined temperature.
Public/Granted literature
- US20140176237A1 ELECTRONIC DEVICE AND CONTROL METHOD THEREOF Public/Granted day:2014-06-26
Information query
