Wistron Corporation

Chun-Kuan Liu

Chen-Yi Liang

I-Ming Chen

Kun-Liang Lai

A password power switch circuit for an electronic device includes a thermal energy conversion circuit and a programmable control chip. The thermal energy conversion circuit is used for generating a plurality of sensing temperatures. The programmable control chip is coupled to the thermal energy conversion circuit for storing a password and generating a power-on signal to a central processing device of the electronic device according to a plurality of locations corresponding to the plurality of sensing temperatures and a plurality of locations corresponding to the password. The central processing device determines at least one operation associated with the electronic device according to the power-on signal.

Password power switch circuit and electronic device

This invention provides a wireless input device, including a primary battery set, a backup battery, an electricity generating device, an energy-storage/charging device, and a switching device. The primary battery set provides electricity to the wireless input device. The backup battery provides electricity to the wireless input device when the primary battery set does not have sufficient electricity. The electricity generating device generates electricity in response to clicking/pressing operations to the wireless input device. The energy-storage/charging device is coupled to the backup battery and the electricity generating device. The energy-storage/charging device stores the electricity generated by the electricity generating device and charges the backup battery when the stored electricity has reached a predetermined volume. The switching device is coupled to the primary battery set and the backup battery. The switching device selects the primary battery set or the backup battery to provide electricity to the wireless input device.

Wireless input device and power management method of the same

An emergency call circuit for an electronic device includes a dial button, a wireless communication module, an emergency call button and a logic circuit. The wireless communication module is used for dialing an emergency call according to a dial signal generated by the dial button when the wireless communication device is shut down. The logic circuit is used for transmitting an emergency call detecting signal generated by the emergency call button to the wireless communication module and a power circuit of the electronic device, wherein the power circuit supplies a first power source to the logic circuit and the wireless communication module when the electronic device is shut down.

Emergency call circuit for electronic device

An engaging module is suitable for first and second objects adapted to be combined or separated along a first axial direction. The engaging module includes an engaging component, an elastic component and an electromagnet. The engaging component is movably disposed on the first object. When the first object and the second object are combined, the engaging component is adapted to move to a first position along a plane to be engaged with the second object, and is adapted to move to a second position along the plane to separate from the second object. The first axial direction is not parallel to the plane. The engaging component is positioned at the first position through an elastic force of the elastic component, and is adapted to resist the elastic force of the elastic component to be positioned at the second position through a magnetic force generated by the electromagnet.

Engaging module

The test board serves as an interface for testing a conference phone. The test board includes a plurality of test channel selectors. Each of the test channel selectors receives a plurality of test voltages provided by the conference phone and a first and a second control signals. The test voltages are divided into a plurality test voltage pairs, and each of the test channel selectors selects one of the test voltages in each of the test voltage pairs for generating a plurality of selected voltages according to the first control signal. Each of the test channel selectors selects two of the selected voltages for generating a first and a second output voltages according to the second control signal, where the first and the second output voltages are transmitted to a test machine for testing the conference phone.

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Taipei, Taiwan

Chun-Kuan Liu