A cycling helmet capable of switching a sound production guidance mode based on a bone conduction earphone includes: a helmet body and the bone conduction earphone disposed on the helmet body. The bone conduction earphone includes a magnet, a coil and a bone conduction oscillator, and the bone conduction oscillator can contact the helmet body, so as to cause the helmet body to oscillate to form a sound cavity.

An intelligent safety helmet with front play of rearview is provided. The helmet includes a helmet body and several ventilation holes designed on it. The helmet body is set in the back with a rearview camera electrically connected with the intelligent hardware set in its front. The intelligent hardware includes a removable main bracket installed on one side of the helmet body, and the main bracket is installed with an optoelectronic device and a front-facing camera in the front via a rocker arm module, so that the user can use the front-facing camera to take pictures and store them in the memory or activate the rearview camera and project the image onto the optoelectronic device for view of rear conditions by the user. The user can use a transmissive optical module set in front of the eyes to play the pictures taken by the back-facing camera.

The conventional surveillance angle, in which activities are observed from a helmet camera mounted at the top, separates a participant of an activity, such as sports, from his immediate experience. A different point of view can be taken from the camera when it is mounted via the Y-shaped accessory mount over the apogee of the helmet chin bar. This point of view is a sousveillance in which the observation is down at a human level so as to allow a consumer of the recorded contents of the sousveillance to connect with the sportsman by vicariously undergoing the immediacy of his sporting experience.

A helmet for a smart cycling equipment. The helmet includes a main body, a left speaker, a right speaker, a control interface, a charging interface, a microprocessor, a wireless communication module, and a battery. The main body includes a shell and a flange connected to the shell and surrounding the shell. The flange includes a front portion, a rear portion, a left portion, and a right portion. The left speaker is arranged on the left portion. The right speaker is arranged on the right portion. The control interface and the charging interface are arranged on the flange. The wireless communication module is connected to the microprocessor. The battery is connected to the charging interface.

A speaker system may include a dome-shaped shell defining an internal cavity, a receiver configured to receive audio signals from a wireless-enabled device and positioned in the internal cavity, and a plurality of speakers positioned at least partially within the internal cavity and in audio communication with the receiver, wherein the wireless receiver and speakers are configured to project audio outward of the dome-shaped shell. At least some of the plurality of speakers are facing outward of the dome-shaped shell. Some of the plurality of speakers could also be downward facing. The shell can take the form of a sports helmet.

An active awareness control system and method for a helmet with a rigid shell that spatially divides a shell interior from a shell ambiance includes receiving at least one playback-sound signal, generating in the shell interior from the at least one playback-sound signal playback sound, and receiving and processing at least one ambient-sound signal representative of sound occurring in the shell ambience to detect the at least one desired-sound signal. The generation of the at least one playback sound is put on hold when the at least one desired-sound pattern is detected.

An automatic noise control system and method for a helmet with a rigid shell that is configured to spatially divide a shell interior from a shell ambiance include generating in connection with at least one loudspeaker disposed in the shell interior anti-sound in the shell interior based on at least one input signal. The anti-sound is configured to attenuate sound occurring in the shell interior through destructive superposition. The system and method further include providing the at least one input signal by at least one of picking up sound in the vicinity of the loudspeaker in the shell interior, picking up vibrations of the shell, and picking up sound in the vicinity of the shell exterior.

Active noise reduction systems and methods for a helmet with a rigid shell that spatially divides a shell interior from a shell ambiance include receiving at least one desired-sound signal representative of at least one desired sound pattern occurring in the shell ambience, and generating, based on the at least one desired-sound signal, anti-sound that is configured to interact with internal sound occurring in the shell interior through superposition. The internal sound includes first internal sound components and second internal sound components, the first internal sound components not corresponding to the at least one desired sound pattern and the second internal sound components corresponding to the at least one desired sound pattern. The anti-sound is further configured to attenuate the first internal sound components, and to amplify, not attenuate, or attenuate to a lesser degree than the first internal sound components the second internal sound components.

A speaker system may include a dome-shaped shell defining an internal cavity, a receiver configured to receive audio signals from a wireless-enabled device and positioned in the internal cavity, and a plurality of speakers positioned at least partially within the internal cavity and in audio communication with the receiver, wherein the wireless receiver and speakers are configured to project audio outward of the dome-shaped shell. At least some of the plurality of speakers are facing outward of the dome-shaped shell. Some of the plurality of speakers could also be downward facing. The shell can take the form of a sports helmet.

A speaker system may include a dome-shaped shell defining an internal cavity, a receiver configured to receive audio signals from a wireless-enabled device and positioned in the internal cavity, and a plurality of speakers positioned at least partially within the internal cavity and in audio communication with the receiver, wherein the wireless receiver and speakers are configured to project audio outward of the dome-shaped shell. At least some of the plurality of speakers are facing outward of the dome-shaped shell, wherein the at least some of the plurality of speakers are at least partially upward and partially forward facing and configured to project audio outward of the dome-shaped shell in at least a partially forward direction. Some of the plurality of speakers could also be forward facing and downward facing. The shell can take the form of a sports helmet.