| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 386254000 | Degrade/modify part of the video signal levels (e.g., back or front porch color burst, etc.) | 11 |
| 20110069938 | METHOD AND APPARATUS FOR PROVIDING A CONTENT CONTROL SIGNAL IN A MEDIA PLAYER VIA COLOR BURST PHASE MODIFICATIONS - The “color stripe” process is well known in the video field for preventing copying of video by analog video tape recorders, and operates by altering the phase of a portion of the video signal color burst. Here, a weakened version of the color stripe process is installed in a video signal by a digital media player which plays or stores conventional digital media, such as an optical disc (e.g., DVD or CD) player, a hard disc drive, a digital tape drive, or solid state memory. Thereby in an analog video signal output by such a digital media player the color burst phase alterations are reduced or attenuated so there is no copy prevention effect on a conventional downstream (receiving) analog video tape recorder. However the weakened color stripe process is still sufficient to be detectable by a suitable detector located in a downstream compliant device such as a video recorder, so the detected presence of the installed color stripe serves as an encoded indication of copy control or other content control for the video signal by the compliant device. | 03-24-2011 |
| 20110182564 | Recoverable Digital Content Degradation - The disclosure relates generally to processing audio and video signals. One claim recites an apparatus comprising: electronic memory for storing a media signal, the media signal comprising degradation introduced through use of a key, in which the key corresponds to detection criteria in the media signal, and in which the degradation comprises human perceptible degradation, the media signal further comprising the key embedded therein; and a processor programmed for: analyzing the media signal to obtain the key; and removing some of the degradation through use of the key, in which said removing utilizes different detection criteria relative to a process that introduced the degradation into the media signal. Of course, other claims and combinations are provided too. | 07-28-2011 |
| 20120294588 | AUDIO COPY PROTECTION SYSTEM - An apparatus for applying an anti-copy protection signal for use with switchable head recorders, such as Video Hi-Fi recorders, is described. A high frequency pulsed signal is added to an original signal. The pulses interfere with the compensator circuitry such that the switching of the record head cannot adequately be masked on recording of a signal. On playback, the switching of the recording heads can subsequently be heard. In Video Hi-Fi recorders, the effect of the high frequency signals also interferes with the compressor-expander circuits to worsen the sound of the head switching. | 11-22-2012 |
| 20120315018 | VIDEO IMAGE DISPLAY DEVICE, ANTI-CAMCORDING METHOD, AND VIDEO IMAGE DISPLAY SYSTEM - Light other than visible light is emitted from a video image display section such as a screen, together with display images, so as to degrade image quality of illegally camcorded video images, thereby making it impossible to use the illegally camcorded image contents. A video image display system includes a projector that generates a display image; and a screen on which the image generated by the projector is projected and displayed. On a backside of the screen, there is provided an infrared ray emitting unit that emits infrared light from a video image display surface during a period while video images are being displayed on the screen. The infrared ray emitting unit includes a wavelength cut filter that substantially does not transmit a predetermined wavelength component close to a visible light region, among the light emitted from the infrared light source | 12-13-2012 |
| 20140023347 | ANTI-COPY PROTECTION FOR A VIDEO SIGNAL - An apparatus and method for applying anti-copy protection to a raster-scanned video signal are described. A square waveform | 01-23-2014 |
| 20150296170 | SYSTEM AND METHOD FOR FINE-GRAINED CONTROL OF PRIVACY FROM IMAGE AND VIDEO RECORDING DEVICES - A system and method for fine-grained privacy control of image and video recordings uses a model-based approach to solve privacy issues. The method includes steps of: receiving a digital capture of a subject bound by privacy constraints; receiving information regarding the subject, the environment, and the privacy constraints; using the information to generate a model image of the subject within the environment; associating a disposition tag with an appearance of the subject in the model image; and comparing the model image with the digital capture to determine coordinates in the recording where a privacy control action, such as a blocking action, should be applied. | 10-15-2015 |
| 20160057380 | PROCESSING DIGITAL CONTENT - There are described methods and apparatus for scrambling digital content, such as video or audio content, by dividing the digital content into blocks set out in an original arrangement, and reordering the blocks from the original arrangement to a scrambled arrangement. Additional manipulation transforms such as rotations and reflections may be applied to individual blocks. A subsequent compression step may then be carried out. Methods and apparatus for carrying out corresponding descrambling of digital content are also described. | 02-25-2016 |
| 20160057381 | VIDEO PROCESSING SYSTEM, VIDEO PROCESSING METHOD, AND PROGRAM - To make it difficult to acquire an original moving image based on display data. A moving image processing system includes a moving image data acquiring unit for acquiring moving image data, a frame image set specifying unit for specifying an image set that includes, among a plurality of frame images indicated by the moving image data, frame images to be displayed sequentially, and a modified frame image generating unit for generating, by modifying a key frame image that is based on at least one of the frame images included in the image set, a same number of modified frame images as the frame images included in the image set, wherein an average of pixel values of corresponding pixels of the modified frame images corresponds to a pixel value of a corresponding pixel of the key frame image, and a display control unit for sequentially display the modified frame images generated by modified frame image generating unit, instead of the frame images included in the image set. | 02-25-2016 |
| 20160150180 | PLAYBACK METHOD AND PLAYBACK DEVICE - A playback method according to one aspect of the present disclosure is performed by a Blu-ray device connected to a display device. The playback method includes obtaining, from a recording medium, output control information of content recorded on the recording medium; obtaining, from the recording medium, a video signal of the content recorded on the recording medium; and (a) outputting the obtained video signal to the display device without converting image quality of the video signal, when the obtained output control information does not restrict output of content using a first copyright protection technology, and (b) converting the image quality of the obtained video signal and outputting the video signal to the display device, when the obtained output control information restricts output of content using the first copyright protection technology and output using the first copyright protection technology is performed according to a type of the display device. | 05-26-2016 |
| 386255000 | Defeating anti-copy modification (e.g., descrambler, etc.) | 2 |
| 20110081130 | OBSCURING DATA IN AN AUDIOVISUAL PRODUCT - Access to an audiovisual product is controlled by obscuring data. Cells | 04-07-2011 |
| 20110103770 | HOME TELEPRESENCE WITH CONTENT INSERTION - A provisioning device intercepts program content from a video client or another multimedia device, where the program content includes copy-protection encryption, and receives additional content from a local router or another networked device, where the additional content is Internet protocol (IP) content. The provisioning device removes the copy-protection encryption from the program content and combines the additional content with the program content. The provisioning device also adds copy-protection encryption to the combined additional content and program content, and sends the copy-protected combined content to a display device. | 05-05-2011 |
