An information input device for inputting information into an information device carried by the user by using a near electromagnetic field. The key code (output of a processor (2)) generated by a key-in of a keyboard (12) is frequency-modulated (FSK) by a modulator (5), and only the necessary carrier component is passed through a filter (6) and supplied to a conductive key top (4) via a buffer amplifier (7). The supplied signal is received by a preamplifier (10) attached to a wearable device (9) of the user by using the surface of the user's body and a near electromagnetic field, demodulated (11) and supplied to a computer, of the wearable device (9).

Information input device

A cable assembly for use with any power cable for an electrical device, the cable assembly including a remotely locatable switch for connecting or disconnecting the electrical device from power draw. Also, a cable assembly for a power device such as a charger for providing output power to an electronic device is disclosed, the cable assembly including two pairs of wires wherein a first pair provides output power for the electronic device and a second pair includes a switch for turning off the charger. The cable assembly allows the switch to be located remotely from a charger housing for the converter circuitry and remotely from a power source such as an outlet, and allows the switch to be generally co-located with and operable at the connector for connecting the power device with the electronic device.

Energy saving cable assemblies

An embodiment of the present invention is directed to a power device for an electronic device, such as a charger for a portable rechargeable device and/or an AC adapter The power device includes switching circuitry for de-powering at least a portion of the power device when the electronic device is either not drawing power or is disconnected from the power device

Energy-saving power adapter/charger

A wireless pointing device includes a push button switch, an optical sensor circuit, and a processor. The processor is configured to transmit to the optical sensor circuit a logic high signal in response to depression of the push button switch for a period greater than or equal to the predetermined first period of time and to transmit a logic low signal in response to depression of the push button switch for a period less than the predetermined first period. The optical sensor circuit responds to the logic high signal by entering a power saving mode wherein an optical sensor in the optical sensor circuit is decoupled from a power source.

Optical wireless mouse power saving feature

A battery-free wireless optical mouse comprises a wireless optical mouse and a mouse pad. This invention is different from the traditional optical mouse is that it is battery-free. It has no power connector and requires no battery. The wireless optical mouse and mouse pad are installed with an electromagnetic inductance coil. The electromagnetic induction generated by the effect of two electromagnetic inductance coils on the wireless optical mouse and mouse pad emits one-way energy capacity to the electromagnetic inductance coil of the wireless optical mouse and provide the necessary power to the optical mouse. The two electromagnetic inductance coils can be adjusted to change the electromagnetic load characteristics, such as electric current load response or frequency response to obtain one-way data transmission purpose. The data are then converted into the proper computer format through the data processing of the mouse and transmitted to the computer.

Battery-free wireless optical mouse

A wireless pointing device with forced power-off function includes a body and a power supply switch. The body includes a pointing module, a battery, and a wireless transmission module. The wireless transmission module transmits an indication signal providing from the pointing module. The power supply switch is located on an outer surface of the body to control ON and OFF of the power supply circuit of the battery. The power supply switch may be cut off manually, or through charging operation to completely cut off the power of the wireless pointing device to avoid electric power consumption and increase the service life of the battery.

Wireless pointing device with forced power-off function

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Wireless pointing device with forced power-off function