Abstract: A shopping store system may include one or more shelves in which each shelf includes one or more levels and one or more products placed on the shelves. Electronic sign labels (ESLs) may be included in the shopping store system in which each of the ESLs is located in a particular position corresponding to a respective product placed on the shelves. Each ESL may include a multi-protocol radio that is configured to operate in a reception modality, a transmission modality, or a transceiving modality. The ESLs may each include a display that is configured to provide information about the respective product to which each ESL corresponds. The shopping store system may include a computer system configured to receive information transmitted by and process information received by each of the ESLs.

Abstract: A shopping store system may include one or more shelves in which each shelf includes one or more levels and one or more products placed on the shelves. Electronic sign labels (ESLs) may be included in the shopping store system in which each of the ESLs is located in a particular position corresponding to a respective product placed on the shelves. Each ESL may include a multi-protocol radio that is configured to operate in a reception modality, a transmission modality, or a transceiving modality. The ESLs may each include a display that is configured to provide information about the respective product to which each ESL corresponds. The shopping store system may include a computer system configured to receive information transmitted by and process information received by each of the ESLs.

Abstract: A method to measure sound-producing behaviors of a subject with a power- and bandwidth-limited electronic device that includes a processor includes measuring, by a microphone communicatively coupled to the processor, sound in a vicinity of the subject to generate an audio data signal that represents the sound. The method also includes measuring, by at least one second sensor communicatively coupled to the processor, at least one parameter other than sound to generate at least a second data signal that represents the at least one parameter other than sound. The method also includes detecting one or more sound-producing behaviors of the subject based on: both the audio data signal and the second data signal; or information derived from both the audio data signal and the second data signal.

Abstract: A method to measure sound-producing behaviors of a subject with a power- and bandwidth-limited electronic device that includes a processor includes measuring, by a microphone communicatively coupled to the processor, sound in a vicinity of the subject to generate an audio data signal that represents the sound. The method also includes measuring, by at least one second sensor communicatively coupled to the processor, at least one parameter other than sound to generate at least a second data signal that represents the at least one parameter other than sound. The method also includes detecting one or more sound-producing behaviors of the subject based on: both the audio data signal and the second data signal; or information derived from both the audio data signal and the second data signal.

Abstract: A method to measure sound-producing behaviors of a subject with a power- and bandwidth-limited electronic device that includes a processor includes measuring, by a microphone communicatively coupled to the processor, sound in a vicinity of the subject to generate an audio data signal that represents the sound. The method also includes measuring, by at least one second sensor communicatively coupled to the processor, at least one parameter other than sound to generate at least a second data signal that represents the at least one parameter other than sound. The method also includes detecting one or more sound-producing behaviors of the subject based on: both the audio data signal and the second data signal; or information derived from both the audio data signal and the second data signal.