Intel Corporation

Dsp Group Limited

Guy Ben-Artzi

Noam Levy

Omer Ben-Shalom

Dan Horovitz

Yaron Naim

Levi Schultz

Ofer Shneyour

David Cohen

Victoria Almog-Ayzenberg

Miriam Engel

The disclosure generally relates to method, system and apparatus for privacy enhancement mode for integrated cameras. In an exemplary embodiment, the disclosure allows a user of a device equipped with an integrated device to engage the device in the so-called privacy mode whereby while the camera is engaged, the device does not broadcast the user's images; rather the device uses the camera to detect, discern and determine the user's attributes. Such attributes may include one or more of movement, motion, mood, gesture and temperature of the user. The attributes may include specificities of the user's environment.

Method, system and apparatus for privacy enhancement mode for integrated cameras

Techniques are provided for generation of secure video and tamper detection of the secure video. A methodology implementing the techniques according to an embodiment includes selecting a subset of macroblocks from a video frame to be transmitted and calculating a low frequency metric on each of the selected macroblocks. The method also includes performing a hash calculation on the low frequency metrics to generate a frame signature, encrypting the frame signature (using a private key) to generate an encrypted watermark, and modifying pixels of each of the selected macroblocks to generate the secured video frame, the modifications based on bits of the encrypted watermark that are associated with the selected macroblock. The method further includes authenticating a received video frame by comparing a calculated frame signature to an authenticated frame signature, the authenticated frame signature decrypted (using a public key) from an extracted watermark of the received video frame.

Detection of video tampering

Techniques are provided for generation of secure video and tamper detection of the secure video. A methodology implementing the techniques according to an embodiment includes selecting a subset of macroblocks from a video frame to be transmitted and calculating a low frequency metric on each of the selected macroblocks. The method also includes performing a hash calculation on the low frequency metrics to generate a frame signature; encrypting the frame signature (using a private key) to generate an encrypted watermark; and modifying pixels of each of the selected macroblocks to generate the secured video frame, the modifications based on bits of the encrypted watermark that are associated with the selected macroblock. The method further includes authenticating a received video frame by comparing a calculated frame signature to an authenticated frame signature, the authenticated frame signature decrypted (using a public key) from an extracted watermark of the received video frame.

Data is transmitted and received in a TDMA frequency hopping system by allocating two or more time slots for transmitting identical data packets, and transmitting the identical data packets in the allocated time slots at different frequencies. This requires the transmission of redundant information but reduces the likelihood of data loss. An adaptive scheme may be employed wherein more time slots are allocated for the repeated data transmissions in areas of poor reception while fewer time slots are allocated for the repeated data transmissions in areas of higher quality reception or when higher bandwidth is required.

Growing community of inventors

Zichron Yaacov, Israel

Guy Ben-Artzi