发明名称 |
Portable information terminal apparatus |
摘要 |
Based on information indicating the signal transmission amount between the first and second circuit blocks, a switching device switches an optical signal communication form which uses a first and second optical signal transmitting/receiving devices and an electric signal communication form which uses a first and second electric signal transmitting/receiving devices. Thereby, in a portable information terminal apparatus with a separate main body operation unit and a separate screen display unit, power consumed by the optical signal communication can be suppressed.
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申请公布号 |
US7522938(B2) |
申请公布日期 |
2009.04.21 |
申请号 |
US20050149291 |
申请日期 |
2005.06.10 |
申请人 |
PANASONIC CORPORATION |
发明人 |
TOMITA YOSHIHIRO;NAKAGIRI YASUSHI;KORENAGA TSUGUHIRO;HIBINO KUNIO;KARASHIMA SEIJI;TOMEKAWA SATORU |
分类号 |
H04M1/00;G06F1/16;G06F1/32;H04B1/40;H04J14/00;H04M1/02;H04M1/73;H04M11/00 |
主分类号 |
H04M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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