Abstract: Disclosed is a ring shaped wearable communication device (ring) for a user's finger. The ring includes: a sound sensor that detects ambient sound levels; a speaker that produces sound in human audible frequency range per at least one signal received, wherein intensity of the sound produced is based on the ambient sound level; an out port; and a hollow channel with an increasing cross-section that wraps around the finger, wherein: smaller cross-section end of the hollow channel is connected to the speaker and the other end of the hollow channel is connected to the out port to provide a horn-like structure; the out port and the hollow channel are configured to reduce the mismatch between the acoustic impedance of air immediately outside the out port and the acoustic impedance as seen by the speaker just outside the speaker; and the out port emits sound received from the speaker as directional sound in close vicinity of the user's hand.

Abstract: A wearable ring-shaped electronic device having a ring portion engageable with a first finger of a user wearing the device is provided. The ring portion includes an interface, and a display unit operatively coupled with the ring portion. The display unit comprising a face that is coupled with any or a combination of a face cover and a face edge such that, upon interaction between a second finger of the user and the interface, interaction-based data is transmitted to and processed by at least one processor of the device so as to enable one or more notifications to be either displayed on any or a combination of the face cover and the face edge, or audibly notified to the user.

Abstract: A wearable ring-shaped electronic device having a ring portion engageable with a first finger of a user wearing the device is provided. The ring portion includes an interface, and a display unit operatively coupled with the ring portion. The display unit comprising a face that is coupled with any or a combination of a face cover and a face edge such that, upon interaction between a second finger of the user and the interface, interaction-based data is transmitted to and processed by at least one processor of the device so as to enable one or more notifications to be either displayed on any or a combination of the face cover and the face edge, or audibly notified to the user.

Abstract: Disclosed is a ring shaped wearable communication device (ring) for a user's finger. The ring includes: a sound sensor that detects ambient sound levels; a speaker that produces sound in human audible frequency range per at least one signal received, wherein intensity of the sound produced is based on the ambient sound level; an out port; and a hollow channel with an increasing cross-section that wraps around the finger, wherein: smaller cross-section end of the hollow channel is connected to the speaker and the other end of the hollow channel is connected to the out port to provide a horn-like structure; the out port and the hollow channel are configured to reduce the mismatch between the acoustic impedance of air immediately outside the out port and the acoustic impedance as seen by the speaker just outside the speaker; and the out port emits sound received from the speaker as directional sound in close vicinity of the user's hand.