An apparatus for wirelessly increasing the number of communication channels in a critical mission wireless communication system installed in a confined area is provided. The system includes a transmitter configured to transmit radio signals at a first frequency band, wherein the first frequency band is higher than a standard frequency band defined by a critical mission wireless communication protocol of the critical mission wireless communication system; and a plurality of receivers, wherein each plurality of receivers is wirelessly connected to the transmitter and configured to receive signals at the first frequency band transmitted by the transmitter and processed signals at the standard frequency, wherein the plurality of receivers and the transmitter are part of the critical mission wireless communication system.

An electronic device includes: An electronic device includes a first communication module and a second communication module configured to perform wireless communication, a spread spectrum clock generator (SSCG), a memory, and a processor. The processor is configured to execute instructions to set a spread spectrum method and a spread ratio of the SSCG, determine whether the electronic device is communicatively coupled to at least one of a first and a second wireless communication, identify a frequency band of a channel of the at least one of the first and the second wireless communication, determine whether at least one of a frequency and multiplication frequencies of the frequency is included by the frequency band of the channel, and maintain the spread spectrum method and the spread ratio causing the SSCG to generate a spread spectrum clock signal based on first spread spectrum method and the spread ratio.

An inductor device includes an 8-shaped inductor and a ring-type wire. The ring-type wire is disposed around an outer side of the 8-shaped inductor. The 8-shaped inductor includes an input terminal and a center-tapped terminal. The input terminal of the 8-shaped inductor is located on a first side of the inductor device, and the center-tapped terminal is located on a second side of the inductor device. The ring-type wire includes an input terminal and a ground terminal. The input terminal of the ring-type wire is located on the first side of the inductor device, and the ground terminal is located on the second side of the inductor device. The input terminal of the ring-type wire is coupled to the input terminal of the 8-shaped inductor.

An inductor device includes an 8-shaped inductor and a ring-type wire. The ring-type wire is disposed around an outer side of the 8-shaped inductor. The 8-shaped inductor includes an input terminal and a center-tapped terminal. The input terminal of the 8-shaped inductor is located on a first side of the inductor device, and the center-tapped terminal is located on a second side of the inductor device. The ring-type wire includes an input terminal and a ground terminal. The input terminal of the ring-type wire is located on the first side of the inductor device, and the ground terminal is located on the second side of the inductor device. The input terminal of the ring-type wire is coupled to the input terminal of the 8-shaped inductor.

Detecting an imminent failure of a power supply. The power supply may supply power to an Optical Line Terminal (OLT) node, an Ethernet switch, a Community Access television (CATV) plant, an optical node, a smart optical node, an outdoor Wi-Fi hot-spot, an 802.11n Wi-Fi Access Point, a wireless base station, and a Digital Subscriber Line Access Multiplexer (DSLAM). An internal computerized component periodically reads a set of measurements from one or more sensors affixed to a power supply. The internal computerized component and power supply may reside in a variety of different technical contexts. The internal computerized component analyzes the set of measurements using, at least in part, a weighted set of factors, to detect the imminent failure in the power supply. The weighted set of factors may be updated or revised over time and may be specifically tailored for use with specific types of power supplies.

Detecting an imminent failure of a power supply. The power supply may supply power to an Optical Line Terminal (OLT) node, an Ethernet switch, a Community Access television (CATV) plant, an optical node, a smart optical node, an outdoor Wi-Fi hot-spot, an 802.11n Wi-Fi Access Point, a wireless base station, and a Digital Subscriber Line Access Multiplexer (DSLAM). An internal computerized component periodically reads a set of measurements from one or more sensors affixed to a power supply. The internal computerized component and power supply may reside in a variety of different technical contexts. The internal computerized component analyzes the set of measurements using, at least in part, a weighted set of factors, to detect the imminent failure in the power supply. The weighted set of factors may be updated or revised over time and may be specifically tailored for use with specific types of power supplies.

Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.

The disclosure described herein configures a multi-narrowband transceiver for communication within the television white space (TVWS) frequency spectrum using a log periodic filter, wherein the log periodic filter comprises a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor (K). Each filter of the plurality of filter elements is configured to filter out second harmonics in a defined frequency range. The disclosure determines a TVWS channel for the communication and switches to a filter element of the plurality of filter elements corresponding to the determined TVWS channel. Data is transmitted and/or received over the TVWS channel using the filter element, thereby allowing narrowband communication over the TVWS channel.

A vehicle includes a control device. The control device stops an operation of a flow path switching valve simultaneously with limiting output of a fuel cell when an authentication of a mobile device is performed.

A vehicle includes a control device. The control device stops an operation of a flow path switching valve simultaneously with limiting output of a fuel cell when an authentication of a mobile device is performed.