Invention Grant
US08841966B2 Sound output device using vacuum tube, audio apparatus and method for sound output thereof
有权
使用真空管的声音输出装置，音频装置及其声音输出方法
- Patent Title: Sound output device using vacuum tube, audio apparatus and method for sound output thereof
- Patent Title (中): 使用真空管的声音输出装置，音频装置及其声音输出方法
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Application No.: US13553984Application Date: 2012-07-20
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Publication No.: US08841966B2Publication Date: 2014-09-23
- Inventor: Jae-cheol Lee , Byung-soo Kim , Joo-moon Youn , Kee-yeong Cho
- Applicant: Jae-cheol Lee , Byung-soo Kim , Joo-moon Youn , Kee-yeong Cho
- 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: KR10-2011-0074124 20110726; KR10-2011-0078958 20110809; KR10-2012-0039037 20120416
- Main IPC: H03F1/14
- IPC: H03F1/14 ; H03F3/20 ; H03F3/181 ; H03F5/00
Abstract:
A sound output device is provided. The sound output device includes a vacuum tube for amplifying an audio signal; a power supply that supplies power to the vacuum tube; a first switch circuit that selectively connects the power supply to the vacuum tube; and a controller that controls the first switch circuit according to whether the vacuum tube is used.
Public/Granted literature
- US20130027131A1 SOUND OUTPUT DEVICE USING VACUUM TUBE, AUDIO APPARATUS AND METHOD FOR SOUND OUTPUT THEREOF Public/Granted day:2013-01-31
Information query
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