CPC Class H04W

Aspects of the subject disclosure may include, for example, a system for generating first electromagnetic waves and directing instances of the first electromagnetic waves to an interface of a transmission medium to induce propagation of second electromagnetic waves having at least a dominant non-fundamental wave mode. Other embodiments are disclosed.

A cabinet server and a data center where the cabinet server includes multiple function node layers vertically arranged to form a server core and multiple intra-cabinet antennas vertically arranged and disposed at one side of the server core, an intra-cabinet antenna is wirelessly connected to adjacent intra-cabinet antennas. A transmission path is formed of the vertically arranged intra-cabinet antennas when a radio signal is transmitted within the cabinet server. Since the intra-cabinet antennas are disposed at the side of the server core, electromagnetic radiation generated by the radio signal in a transmission process has a relatively small effect on the function nodes, thereby reducing the effect of the electromagnetic radiation on various electronic devices in the function nodes, improving service lives of the electronic devices, and improving transmission quality of the radio signal.

An antenna includes: a substrate on or in which an antenna element part having an open end, a signal line connected to the antenna element part, and a first ground conductor connected to the antenna element part are formed; and a printed wiring board in which a second ground conductor electrically connected to the first ground conductor is formed in a different layer from the first ground conductor, wherein the second ground conductor has a shield part that partially overlaps with the antenna element part including a connection part between the antenna element part and the signal line and a connection part between the antenna element part and the first ground conductor and does not overlap with the open end of the antenna element part when viewed from a normal direction of the printed wiring board.

Disclosed herein is an antenna for WAVE communication, and more particularly, is an antenna for WAVE communication to which an electromagnetic bandgap is applied to a patch antenna. The antenna includes a dielectric substrate provided with conduction patterns formed on opposite surfaces thereof, first patches disposed on a first surface of the dielectric substrate at positions spaced apart from each other at regular intervals and conducted to each other, second patches disposed on a second surface of the dielectric substrate at positions spaced apart from each other at regular intervals and conducted to each other; a third patch provided in a bottom of the second surface of the dielectric substrate and conducted to the plurality of second patches, and a plurality of electromagnetic bandgap structures positioned on the first surface of the dielectric substrate and conducted to the second patches or the third patch by a through hole.

A delayed power-on function for an electronic device is disclosed. A charging unit charges a rechargeable battery with a pre-charge current when a voltage of the rechargeable battery is less than a voltage threshold value and with a current larger than the pre-charge current when the voltage of the rechargeable battery is greater than the voltage threshold value. A controller can disable power-on when the voltage of the rechargeable battery is less than the voltage threshold value. A user may also be notified when power-on is disabled.

A control method for transmitting charging power to a wireless power receiver in a wireless power transmitter is provided. The control method includes receiving a Power Transmission Unit (PTU) searching signal for searching for a wireless power transmitter, from the wireless power receiver; obtaining information about an identifier of a signal in a communication scheme used by the wireless power receiver; and exchanging signals with the wireless power receiver based on the information about the identifier of the signal in the communication scheme used by the wireless power receiver.

A circuit includes an oscillator having a driver and a resonator. The driver receives a supply voltage at a supply input and provides a drive output to drive the resonator to generate an oscillator output signal. A power converter receives an input voltage and generates the supply voltage to the supply input of the driver. The power converter varies the supply voltage based on an adjust command supplied to a command input of the power converter. A detector monitors a voltage level of the oscillator output signal. A controller sets the adjust command to the power converter to control the supply voltage to the supply input of the driver such that the voltage level of the oscillator output signal is set at or above a predetermined threshold voltage.

A multimode terminal includes a first modem chip, a second modem chip, a switch connected to both the modem chips, and at least two antennas connected to the switch. The first modem chip includes an antenna selection apparatus configured to select an optimum antenna for the first modem chip, control the switch to connect the first modem chip to the optimum antenna of the first modem chip, determine an optimum antenna of the second modem chip according to a related parameter value of a signal received or transmitted by the second modem chip, and control the switch to connect the second modem chip to the optimum antenna of the second modem chip. The second modem chip includes a measurement apparatus configured to measure the related parameter value of the signal received or transmitted by the second modem chip.

Embodiments of the invention provide systems and methods for using an anti-phishing image. More specifically, embodiments of the present invention provide for using a non-static, location-based anti-phishing image that can, in some cases, include authentication information. According to one embodiment, a user with a trusted mobile device can go to a particular location during enrollment with an online service or application. This location can be detected by the mobile device, e.g., through a Global Positioning System (GPS) receiver and/or other location detection techniques. Once detected, this location can be provided by the mobile device to the service or application with which the user is registering and saved by the service or application as a “secret location.” Also during enrollment, the user can select an anti-phishing image. Once saved, the location information can be used for anti-phishing as well as authentication purposes.