# US 2018/0322335 A1 · Methods and Apparatus for Sharing of Music or Other Information

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- Number: US 2018/0322335 A1
- Document ID: US20180322335A1
- Status: Published application
- Kind: A1
- Application number: 15/972,228
- Filed: 2018-05-07
- Published: 2018-11-08
- Earliest claimed: 2017-05-07
- Assignees: Massachusetts Institute of Technology
- Applicants: Massachusetts Institute of Technology
- Inventors: Amos Golan; Tal Achituv
- Web page: https://patentgrep.com/patent/US20180322335A1

## CPC

- G06F 3/012: {Head tracking input arrangements}
- G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)}
- G06F 3/017: {Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883)}
- G06F 3/165: {Management of the audio stream, e.g. setting of volume, audio stream path}
- G06Q 10/40: Business processes related to social networking or social networking services
- G06T 7/70: Determining position or orientation of objects or cameras (camera calibration G06T7/80)
- G06T 7/73: using feature-based methods
- G06V 40/20: Movements or behaviour, e.g. gesture recognition (recognition of facial expressions G06V40/16)
- G06T 2207/10048: Infrared image
- G06T 2207/30204: Marker
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

One or more sensors may detect a gesture or gestures by one or more human users. The detected gesture or gestures may trigger sharing of music or other information. For instance, a first user may be listening to music on headphones. A second user may turn her head, so that her head is facing toward the first user. A sensor may detect this head orientation of the second user. This head orientation may trigger the system to share the first user's music with the second user, for at least as long as this head orientation continues.

## Claims

### Claim 1

A method comprising:
(a) causing audio content to be audibly presented to a first user;
(b) detecting a set of one or more gestures, which set includes a first gesture that comprises a second user's head being oriented toward the first user;
(c) performing a calculation to determine whether a first privacy setting and a second privacy setting permit the audio content to be shared with the second user, the first and second privacy settings having been selected by the first and second users, respectively; and
(d) if the calculation determines that the first and second privacy settings permit the first audio content to be shared with the second user,
(i) wirelessly transmitting a radio signal that encodes the audio content,
(ii) causing a receiver worn by the second user to tune to the radio signal, and
(iii) causing the audio content to be audibly presented to the second user during a time period in which the first gesture occurs.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first gesture is detected by:
(a) transmitting, with an omnidirectional transmitter worn by the first user, an infrared signal; and
(b) receiving, with a directional receiver worn by the second user, the infrared signal.

### Claim 3 (depends on 1)

The method of claim 1, wherein the first gesture is detected by:
(a) transmitting, with a directional transmitter worn by the second user, an infrared signal; and
(b) receiving, with an omnidirectional receiver worn by the first user, the infrared signal.

### Claim 4 (depends on 1)

The method of claim 1, wherein the first gesture is detected by:
(a) capturing, with one or more cameras, a set of images of a scene, which scene includes the first and second users; and
(b) performing a computer vision algorithm to detect the first gesture, based on the set of images.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first gesture is detected by:
(a) emitting, from a first infrared transmitter, a first pattern of infrared light that periodically sweeps across a scene, which scene includes the first and second users;
(b) emitting, from a second infrared transmitter, a second pattern of infrared light that periodically sweeps across the scene;
(c) detecting a first time at which the first pattern of infrared light is incident on infrared sensors that are worn on the first user's head;
(d) detecting a second time at which the second pattern of infrared light is incident on infrared sensors that are worn on the first user's head;
(e) detecting a third time at which the first pattern of infrared light is incident on infrared sensors that are worn on the second user's head;
(f) detecting a fourth time at which the second pattern of infrared light is incident on infrared sensors that are worn on the second user's head; and
(g) calculating position and orientation of the second user's head relative to the first user's head, based on the first, second, third and fourth times.

### Claim 6 (depends on 1)

The method of claim 1, wherein:
(a) the radio signal that encodes the audio content is transmitted at a first frequency; and
(b) the method further includes
(i) transmitting, by an infrared transmitter worn by the first user, a second signal that encodes the first frequency, and
(ii) receiving, by an infrared receiver worn by the second user, the second signal.

### Claim 7 (depends on 1)

The method of claim 1, wherein:
(a) the radio signal that encodes the audio content is transmitted at a first frequency; and
(b) the method further includes
(i) transmitting a second signal that encodes the first frequency, and
(ii) receiving, by a receiver worn by the second user, the second signal.

### Claim 8 (depends on 1)

The method of claim 1, wherein the wireless transmitting of the radio signal that encodes the audio content is performed by a transmitter worn by the first user.

### Claim 9 (depends on 1)

The method of claim 1, wherein the wireless transmitting of the radio signal that encodes the audio content is performed by a transmitter that is more than one meter away from each of the first and second users.

### Claim 10 (depends on 1)

The method of claim 1, wherein the method includes mixing, by a mixer worn by the second user, audio signals.

### Claim 11 (depends on 1)

The method of claim 1, wherein:
(a) the method includes mixing, by a mixer, audio signals; and
(b) the mixer is more than one meter away from each of the first and second users.

### Claim 12 (depends on 1)

The method of claim 1, wherein the detecting includes detecting, at a time after the first gesture starts, one or more of the following gestures by the first user: smile, nodding head up and down, or thumbs up.

### Claim 13 (depends on 1)

The method of claim 1, wherein the detecting includes detecting, at a time after the first gesture starts, one or more of the following gestures by the second user: smile, nodding head up and down, or thumbs up.

### Claim 14 (depends on 1)

The method of claim 1, wherein the detecting includes detecting, at a time after the first gesture starts, one or more of the following gestures: (a) the first and second users shaking hands, or (b) the first and second users high-frying each other.

### Claim 15 (depends on 1)

The method of claim 1, wherein:
(a) the set of one or more gestures includes multiple gestures by the first or second users; and
(b) the multiple gestures are detected by analyzing images captured by one or more cameras.

### Claim 16 (depends on 1)

The method of claim 1, wherein the detecting includes capturing an image of the first user while (i) the first user is smiling and (ii) the first and second users are facing each other.

### Claim 17 (depends on 1)

The method of claim 1, wherein the detecting includes capturing images of the first and second users while the first user nods the first user's head and simultaneously the first and second users are facing each other.

### Claim 18 (depends on 1)

The method of claim 1, wherein the detecting includes:
(a) detecting, by one or more accelerometers, gyroscopes or magnetometers that are worn by the first user, nodding of the first user's head; and
(b) simultaneously detecting that the first and second users are facing each other.

### Claim 19 (depends on 1)

The method of claim 1, wherein the detecting includes detecting the first and second users shaking hands with each other.

### Claim 20 (depends on 19)

The method of claim 19, wherein the handshaking is detected by a capacitive sensor or a magnetic sensor.