JP4213552B2 - 外部アンテナ検出回路、無線機器及び外部アンテナ切替回路 - Google Patents

外部アンテナ検出回路、無線機器及び外部アンテナ切替回路 Download PDF

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Publication number
JP4213552B2
JP4213552B2 JP2003336184A JP2003336184A JP4213552B2 JP 4213552 B2 JP4213552 B2 JP 4213552B2 JP 2003336184 A JP2003336184 A JP 2003336184A JP 2003336184 A JP2003336184 A JP 2003336184A JP 4213552 B2 JP4213552 B2 JP 4213552B2
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Japan
Prior art keywords
terminal
external antenna
voltage
state
external
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Expired - Fee Related
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JP2003336184A
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Japanese (ja)
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JP2005109560A (ja
JP2005109560A5 (https=
Inventor
栄道 猿渡
英毅 相坂
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Toshiba Corp
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Toshiba Corp
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JP2003336184A 2003-09-26 2003-09-26 外部アンテナ検出回路、無線機器及び外部アンテナ切替回路 Expired - Fee Related JP4213552B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003336184A JP4213552B2 (ja) 2003-09-26 2003-09-26 外部アンテナ検出回路、無線機器及び外部アンテナ切替回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003336184A JP4213552B2 (ja) 2003-09-26 2003-09-26 外部アンテナ検出回路、無線機器及び外部アンテナ切替回路

Publications (3)

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JP2005109560A JP2005109560A (ja) 2005-04-21
JP2005109560A5 JP2005109560A5 (https=) 2006-10-12
JP4213552B2 true JP4213552B2 (ja) 2009-01-21

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JP2003336184A Expired - Fee Related JP4213552B2 (ja) 2003-09-26 2003-09-26 外部アンテナ検出回路、無線機器及び外部アンテナ切替回路

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449424A (zh) * 2006-05-29 2009-06-03 松下电器产业株式会社 Ac适配器及便携式终端设备
WO2007138669A1 (ja) * 2006-05-29 2007-12-06 Panasonic Corporation Ａｃアダプタ及び携帯端末装置
JP2009302736A (ja) * 2008-06-11 2009-12-24 Mitsubishi Electric Corp アンテナ接続検知回路
KR101091718B1 (ko) 2009-11-16 2011-12-09 주식회사 파이칩스 감지 회로, 감지 방법 및 컴퓨터 판독가능 매체
JP2018037838A (ja) * 2016-08-31 2018-03-08 沖電気工業株式会社 無線装置およびその試験方法

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