Interactive secret sharing

• US 8,885,878 B2
• Filed: 07/22/2011
• Issued: 11/11/2014
• Est. Priority Date: 07/22/2011
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Pettit, Bradley Robert, Soldan, Eric, Markovic, Relja
• Primary Examiner(s): Seth, Manav
• Application Number:
  US13/189,392
• Publication Number:
  US 20130022235A1
• Time in Patent Office: 1,208 Days
• US Class Current: 382/103
• CPC Class Codes: A63F 13/12 involving interaction between a plurality of game devices, e.g. transmisison or distribution systems protocols for networked virtual reality, networked games H04L29/06034
• CPC Class Codes: A63F 13/213 comprising photodetecting means, e.g. cameras, photodiodes or infrared cells A63F13/219, A63F13/655 take precedence
• CPC Class Codes: A63F 13/30 Interconnection arrangements between game servers and game devices; Interconnection arrangements between game devices; Interconnection arrangements between game servers
• CPC Class Codes: A63F 13/655 by importing photos, e.g. of the player
• CPC Class Codes: A63F 2300/1093 using visible light
• CPC Class Codes: A63F 2300/201 Playing authorisation given at platform level
• CPC Class Codes: A63F 2300/401 Secure communication, e.g. using encryption or authentication
• CPC Class Codes: A63F 2300/6607 for animating game characters, e.g. skeleton kinematics
• CPC Class Codes: A63F 2300/695 Imported photos, e.g. of the player
• CPC Class Codes: G06F 21/36 by graphic or iconic representation
• CPC Class Codes: 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
• CPC Class Codes: G06F 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

Abstract

Interactive secret sharing includes receiving video data from a source and interpreting the video data to track an observed path of a device. In addition, position information is received from the device, and the position information is interpreted to track a self-reported path of the device. If the observed path is within a threshold tolerance of the self-reported path, access is provided to a restricted resource.

Claims

1. A data-holding subsystem holding instructions executable by a logic subsystem to:

receive video data from a source;

interpret the video data to track an observed path of a device;

receive position information from the device;

interpret the position information to track a self-reported path of the device; and

if the observed path is within a threshold tolerance of the self-reported path, provide access to a restricted resource.

2. The data-holding subsystem of claim 1, where the source includes a depth camera.

3. The data-holding subsystem of claim 2, where the video data includes a sequence of depth maps, each depth map including a matrix of pixels, and each pixel including depth information indicating a depth of an object observed at that pixel.

4. The data-holding subsystem of claim 3, where interpreting the video data includes modeling a computer user as a virtual skeleton including a plurality of joints.

5. The data-holding subsystem of claim 4, where tracking the observed path of the device includes tracking an observed path of a hand joint of the virtual skeleton.

6. The data-holding subsystem of claim 1, where interpreting the video data includes recognizing the device.

7. The data-holding subsystem of claim 1, where the restricted resource is an electronic document.

8. The data-holding subsystem of claim 1, where providing access to the restricted resource includes allowing a user to log on to a multimedia console.

9. The data-holding subsystem of claim 1, where providing access to the restricted resource includes executing an application.