Hewlett-packard Development Company, L.P.

Inventec Multimedia Telecom Corporation

Yu-Min Shen

Yi-Chen Chen

Ching-Lung Wang

Ting-Yang Tsai

Hsiao-Wen Tin

Min-Chieh Wu

Chia-Hsuan Wu

Hong Chou

Yoke Yau Kok

An example electronic device includes a controller to determine a user touch detection by a power adaptor coupled to the electronic device to operate the electronic device in an AC power mode. The power adaptor may comprise a proximity sensor to detect a user touch for detachment of the power adaptor from the electronic device, and a control circuit to operate a configuration pin in a low output mode to signal user touch detection. The controller may initiate central processing unit (CPU) throttling to reduce power consumption by the electronic device. The controller may further stop CPU throttling in response to detecting that the power adaptor has been detached from the electronic device. Further, the controller may switch the electronic device to a DC power mode to operate using DC power supplied by a battery of the electronic device in response to power adaptor detachment.

Power supply switching from power sources

A VoIP terminal, which supports to make a phone call through both PSTN and Internet is disclosed. A local subscriber may choose to have a conversation through PSTN or Internet on his own. Besides, by reference to a switch such as a relay, the VoIP terminal is able to establish a PSTN connection under some special cases, such as the terminal power off or Internet shutdown.

VoIP terminal capable of having conversation through both internet and PSTN

Growing community of inventors

Taipei, Taiwan

Yu-Min Shen