Systems and methods for performing automatic frequency control are provided. Instead of relying on individual frequency tuners for each channel of a multi-channel receiver system, the present subject matter uses a single frequency tuner for receiving each channel of the multi-channel receiver system. A locked demodulator may be designated as a reference demodulator and frequency offset values associated with the reference demodulator may be applied to other demodulators of the multi-channel receiver. These frequency offset values may be used by individual demodulators of each channel for correcting corresponding frequency offsets.

A hand-held electronic device having a remote control application user interface that functions to displays operational mode information to a user. The graphical user interface may be used, for example, to setup the remote control application to control appliances for one or more users in one or more rooms, to perform activities, and to access favorites. The remote control application is also adapted to be upgradeable. Furthermore, the remote control application provides for the sharing of operational mode information.

In some examples, one or more processors configured by executable instructions may receive an audio signal and data to embed in the audio signal. For example, the data may be received dynamically from one or more data sources. The one or more processors may embed the received data in real time into the audio signal as embedded data based at least in part on controlling a phase angle of a selected frequency component of the audio signal. For instance, the embedded data may include at least one of text, a bar code, a quick response code, an image, a uniform resource locator (URL), or multimedia content. Additionally, the one or more processors may send the audio signal with the embedded data over a network to a plurality of electronic devices that include respective decoders for extracting the embedded data from the audio signal.

Systems, methods, and computer-readable media for sending links or hotlinks to a device are provided. The device may be on a wireless network, a wired network, or directly coupled to the device sending the link. The link/hotlink contains an associated action that is performed by the device receiving the link. The associated action may be performed when a user interface is activated or automatically when the link/hotlink is received by the device. The action can be a broadcast/streaming action, Internet action, call action, download action, or upload action. The broadcast action instructs the device to tune to a particular broadcast, the streaming action instructs the device to stream specified content/media, the internet action instructs the device to access an Internet site, and the call action instructs the device to call a telephone number. Other embodiments may be described and/or claimed.

A remote controller includes a touch screen, a communicator, and a processor. The processor controls control a first user interface to be displayed on the touch screen, identifies a signal which is received through the communicator while the first user interface is displayed on the touch screen, and controls a second user interface to be displayed on the touch screen based on the received signal. The second user interface performs a function which is different from that of the first user interface.

An electronic power converter is configured to receive power from a power source. The power operates at a switching frequency. The electronic power converter includes a resonant tank circuit operatively connected to the power converter. The resonant tank circuit operates at a tank resonant frequency. The electronic power converter includes a controller operatively connected to the resonant tank circuit. The electronic power converter further includes a variable inductor operatively connected to the resonant tank circuit. The variable inductor is configured to modify the tank resonant frequency to match the switching frequency within a predetermined margin.

Systems and methods for performing automatic frequency control are provided. Instead of relying on individual frequency tuners for each channel of a multi-channel receiver system, the present subject matter uses a single frequency tuner for receiving each channel of the multi-channel receiver system. A locked demodulator may be designated as a reference demodulator and frequency offset values associated with the reference demodulator may be applied to other demodulators of the multi-channel receiver. These frequency offset values may be used by individual demodulators of each channel for correcting corresponding frequency offsets.

Example implementations relate to partitioning a radio into chains to scan channels. In some examples, a network device may comprise a processing resource and a memory resource storing machine-readable instructions to partition a default radio of the network device into a service chain and a scan chain in response to a scan request, scan a particular channel with the scan chain to discover devices operating on the particular channel of a network, and combine the service chain and the scan chain into the default radio.

A remote controller of an image processing apparatus includes: a touch screen which displays an input menu; a menu processor which processes the touch screen to display respective input menus corresponding to at least two modes among a control mode of the image processing apparatus, a character input mode and a handwriting mode; and a controller which controls the menu processor to display the input menu of the mode corresponding to a selection signal when the selection signal for the mode is received.

In some examples, an audio signal is received and divided into a plurality of frames. Frequency domain data of the audio signal may be generated for an individual frame of the plurality of frames. For example, the frequency domain data may include a plurality of frequency waveform components. Data may be embedded into a selected frequency waveform component having a lower frequency, selected from the frequency domain data of the individual frames, by controlling a phase value of the frequency waveform component to represent a selected bit of the data. For instance, a first range of the phase value may represent a first type of bit and a second range of the phase value may represent a second type of bit.