As may be used in connection with frequency-modulated (FM) radio systems and receivers processing FM broadcast transmissions, exemplary aspects are directed to a method may be performed by the receiver circuitry to receive FM broadcast signaling within a particular bandwidth for which a plurality of target channels are to have a specified channel spacing. The method may include: assessing detected energy for a first adjacent channel having the specified channel spacing and having a frequency immediately adjacent to a targeted one of the plurality of target channels; and discerning whether the detected energy is associated with ultra-sonic energy in detected modulation energy (e.g., ultra-sonic noise in an MPX signal), and/or is associated with modulation energy (e.g., due to over-modulation) from a second adjacent channel also having such specified channel spacing.

An electronic device of various embodiments can include a broadcast receiving module, a connector including a first pin and a second pin, and a processor, wherein the processor can be configured to: identify, through the first pin, the type of external electronic device connected through the connector; drive the broadcast receiving module in a state in which an external antenna included in an external electronic device and the broadcast receiving module are electrically connected through the first pin when the external electronic device corresponds to a designated electronic device type; receive a broadcast signal from the external antenna by using the broadcast receiving module; and output, through the second pin, an audio signal generated on the basis of at least a part of the broadcast signal to a designated device. Other embodiments are also possible.

An electronic device of various embodiments can include a broadcast receiving module, a connector including a first pin and a second pin, and a processor, wherein the processor can be configured to: identify, through the first pin, the type of external electronic device connected through the connector; drive the broadcast receiving module in a state in which an external antenna included in an external electronic device and the broadcast receiving module are electrically connected through the first pin when the external electronic device corresponds to a designated electronic device type; receive a broadcast signal from the external antenna by using the broadcast receiving module; and output, through the second pin, an audio signal generated on the basis of at least a part of the broadcast signal to a designated device. Other embodiments are also possible.

An audio adapter with a frequency modulation (FM) radio function is provided. The audio adapter includes an audio jack, an FM processing circuit, an audio codec, a digital interface, a memory and a processing unit. The FM processing circuit is configured to receive an FM signal through the audio jack and process the FM signal to generate an FM audio. The audio codec is configured to receive the FM audio and output an analog output audio containing the FM audio through the audio jack. The digital interface transmits power. The memory is configured to store multiple codes or program instructions. The processing unit is configured to execute the codes or program instructions to control the FM processing circuit to search for FM channel(s).

An audio adapter with a frequency modulation (FM) radio function is provided. The audio adapter includes an audio jack, an FM processing circuit, an audio codec, a digital interface, a memory and a processing unit. The FM processing circuit is configured to receive an FM signal through the audio jack and process the FM signal to generate an FM audio. The audio codec is configured to receive the FM audio and output an analog output audio containing the FM audio through the audio jack. The digital interface transmits power. The memory is configured to store multiple codes or program instructions. The processing unit is configured to execute the codes or program instructions to control the FM processing circuit to search for FM channel(s).

As may be used in connection with frequency-modulated (FM) radio systems and receivers processing FM broadcast transmissions, exemplary aspects are directed to a method may be performed by the receiver circuitry to receive FM broadcast signaling within a particular bandwidth for which a plurality of target channels are to have a specified channel spacing. The method may include: assessing detected energy for a first adjacent channel having the specified channel spacing and having a frequency immediately adjacent to a targeted one of the plurality of target channels; and discerning whether the detected energy is associated with ultra-sonic energy in detected modulation energy (e.g., ultra-sonic noise in an MPX signal), and/or is associated with modulation energy (e.g., due to over-modulation) from a second adjacent channel also having such specified channel spacing.

A music audio control and distribution system in a location, comprising a first wireless music audio device connected to a local network, the network operably connecting the music audio device with at least one of: (1) a music audio player or (2) a music audio output device, and with a remote music audio source operably connected to the local network. The location of the local network is one of (a) a home, (b) an office, and (c) an automobile. The system also includes a second music audio device comprising at least one of (i) a music audio player or (ii) a music audio output device. The second music audio device is also connected to the local network and is controllable by the first wireless music audio device.

An audio adapter with a frequency modulation (FM) radio function is provided. The audio adapter includes an audio jack, an FM processing circuit, an audio codec, a digital interface, a memory and a processing unit. The FM processing circuit is configured to receive an FM signal through the audio jack and process the FM signal to generate an FM audio. The audio codec is configured to receive the FM audio and output an analog output audio containing the FM audio through the audio jack. The digital interface transmits power. The memory is configured to store multiple codes or program instructions. The processing unit is configured to execute the codes or program instructions to control the FM processing circuit to search for FM channel(s).

An electronic device of various embodiments can include a broadcast receiving module, a connector including a first pin and a second pin, and a processor, wherein the processor can be configured to: identify, through the first pin, the type of external electronic device connected through the connector; drive the broadcast receiving module in a state in which an external antenna included in an external electronic device and the broadcast receiving module are electrically connected through the first pin when the external electronic device corresponds to a designated electronic device type; receive a broadcast signal from the external antenna by using the broadcast receiving module; and output, through the second pin, an audio signal generated on the basis of at least a part of the broadcast signal to a designated device. Other embodiments are also possible.

An electronic device of various embodiments can include a broadcast receiving module, a connector including a first pin and a second pin, and a processor, wherein the processor can be configured to: identify, through the first pin, the type of external electronic device connected through the connector; drive the broadcast receiving module in a state in which an external antenna included in an external electronic device and the broadcast receiving module are electrically connected through the first pin when the external electronic device corresponds to a designated electronic device type; receive a broadcast signal from the external antenna by using the broadcast receiving module; and output, through the second pin, an audio signal generated on the basis of at least a part of the broadcast signal to a designated device. Other embodiments are also possible.