An intercom system provides audio communication between multiple users wearing head-mounted devices (HMDs). In an embodiment, the intercom system determines a first location of a first HMD of a first user. The intercom system determines a second location of a second HMD of a second user. The intercom system receives audio of the first user from a microphone of the first HMD. The intercom system determines a volume level of the audio at the second location using at least the first location and the second location. The intercom system transmits the audio to the second HMD responsive to determining that the volume level is less than a threshold volume. The intercom system may also selectively transmit audio based on gaze direction of a user. Additionally, the intercom system may generate a transcript of audio input by users.

An intercom system provides audio communication between multiple users wearing head-mounted devices (HMDs). In an embodiment, the intercom system determines a first location of a first HMD of a first user. The intercom system determines a second location of a second HMD of a second user. The intercom system receives audio of the first user from a microphone of the first HMD. The intercom system determines a volume level of the audio at the second location using at least the first location and the second location. The intercom system transmits the audio to the second HMD responsive to determining that the volume level is less than a threshold volume. The intercom system may also selectively transmit audio based on gaze direction of a user. Additionally, the intercom system may generate a transcript of audio input by users.

An intercom system provides audio communication between multiple users wearing head-mounted devices (HMDs). In an embodiment, the intercom system determines a first location of a first HMD of a first user. The intercom system determines a second location of a second HMD of a second user. The intercom system receives audio of the first user from a microphone of the first HMD. The intercom system determines a volume level of the audio at the second location using at least the first location and the second location. The intercom system transmits the audio to the second HMD responsive to determining that the volume level is less than a threshold volume. The intercom system may also selectively transmit audio based on gaze direction of a user. Additionally, the intercom system may generate a transcript of audio input by users.

A wireless communications and light emitting diode (LED) device compatible with conventional helmet structures and adapted, while the helmet is being worn, to effectively illuminate likely illumination targets with an internal lighting device. More particularly, the accessories and applications according to various embodiments of the present invention make use of wireless communication and lighting devices to provide advantages in helmet use, with the ability to answer phone calls, communicate between rider-to-rider or rider-to-passenger, intercom talk hands free, ability to listen to music or voice instructions from GPS navigation, and noise cancelation, for safety, and convenience for the end user.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

Systems and methods for volume control over intercom trunk lines. One example method includes receiving, from a first keypanel coupled to a first intercom, a call request identifying a remote keypanel coupled to a second intercom. The method includes transmitting a trunk request based on the call request and receiving a trunk setup message. The method includes activating a first crosspoint to provide a two-way audio connection between the first and second intercom devices. The method includes applying a trunk gain value to the first crosspoint based on the remote keypanel and transmitting, with an audio gain based on the trunk gain value, an audio stream received from the first keypanel. The method includes receiving, from the second intercom, a gain adjustment value associated with the first keypanel and the remote keypanel and applying an adjusted trunk gain value to the first crosspoint based on the gain adjustment value.

An intercom network for real-time audio communication between users has a stationary element to which the users are connected, a mobile terminal that comprises an audio input and that can transmit audio signals wirelessly to the stationary element or to another user, and a device in the stationary element for user management, that administers the users connected to the stationary element, and that carries out an authorization check for logging the mobile terminal onto the stationary element. An NFC element is provided in the device on the stationary element, and an NFC counter-element is provided on the mobile terminal that can transmit authorization information to the NFC element when the mobile terminal approaches the stationary element.

An intercom network for real-time audio communication between users has a stationary element to which the users are connected, a mobile terminal that comprises an audio input and that can transmit audio signals wirelessly to the stationary element or to another user, and a device in the stationary element for user management, that administers the users connected to the stationary element, and that carries out an authorization check for logging the mobile terminal onto the stationary element. An NFC element is provided in the device on the stationary element, and an NFC counter-element is provided on the mobile terminal that can transmit authorization information to the NFC element when the mobile terminal approaches the stationary element.

A multiple dwelling house interphone system includes a collective entrance machine and dwelling room master devices. When a calling operation section is operated and a dwelling unit number of a calling destination is input, a master device speech control section of the dwelling room master device of the dwelling unit including a plurality of dwelling room master devices performs a calling control of transmitting a call signal to the dwelling room master device of the calling destination having its master device ID, and subsequently forming a speech path when a response operation of the dwelling room master device of the calling destination is performed. The calling and speaking to the other dwelling unit are allowed even in a state where another dwelling room master device of the dwelling unit itself has formed a speech path with the dwelling room master device of the other dwelling unit.