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7620178 Copy protection for video signal added pulses  
Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. In one version, positive going pulses are added to the video...
7584149 System and method for securing data through a PDA portal  
Consumers may utilize computing devices to assist in the purchase and/or loyalty process, and in particular, the consumer may utilize a PDA to facilitate the purchase and/or loyalty process. During...
7574004 Image display method and image display processor  
A method and apparatus for directly and indirectly preventing illegal copying of works such as cinema or video images displayed on a display apparatus such as a theater screen or display unit. In...
7520002 Method for manipulation identification on a sensor  
The present invention is a method for identification of manipulations on an arrangement which includes a sensor which emits pulses and a recording unit. As is the case with a tachograph, any...
RE40689 Method and apparatus for disabling anti-copy protection system in video signals  
A method and apparatus for disabling the effect of copy-protect signals placed in a recording video signals which is based on differences in the characteristics of television and VCR circuitry....
7492896 Copy protection for video signal using added negative amplitude pulse  
Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. The enhancements in one version introduce into the overscan...
7471795 Information transmission system  
A sending apparatus generates a first initial vector, a second initial vector, and an encryption key in response to a pseudo random number. Original information is encrypted into cipher information...
7391866 Broadcast apparatus and reception apparatus for providing a storage service by which scrambled content is stored and descrambled using scrambling key list  
A reception apparatus includes: a reception unit for receiving the scrambled content, the scrambled content being scrambled so that a predetermined unit of scrambled content is descrambled using a...
7352863 Copy protection for video signal using narrowed horizontal synchronization signals and amplitude modulation  
Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on a illegal copy. The enhancement in one version include a negative going waveform...
7324974 Digital data file encryption apparatus and method  
A digital data file encryption apparatus and method, where a digital data server identifies the user and supplies an encrypted digital data file to the user in accordance with the identified...
7317797 Seamless switching between multiple pre-encrypted video files  
In a video on demand (VOD) system, methods and apparatus are provided for seamlessly switching back and forth between two pre-encrypted files having changing encryption keys. Such switching back...
7287282 Copyright protection system, transmitter, receiver, bridge device, copyright protective method, medium, and program  
In the case that a bridge unit is connected to a network such as an IEEE 1394 bus, copyright holders want to limit the number of apparatuses that can receive a signal. The invention provides at...
7281272 Method and system for copyright protection of digital images  
A method and system for protecting digital images copied from a video RAM, including the steps of transmitting stored pixel data from a computer memory to a video RAM, identifying protected pixel...
7269735 Instance specific digital watermarks  
A method and apparatus for dynamically applying digital watermarks. Requested content is sent to a security module of a user device. A digital watermark is dynamically determined based at least on...
7249106 Information processing method and apparatus and program storage medium for prohibiting duplication of contents in large quantities  
A contents database 114 memorizes the discriminating information for discriminating contents and the temporal information as to the time of content duplication associated with the discriminating...
7245720 Method for controlling the use of a program signal in a broadcast system, and control device for a receiver for carrying out such a method  
In a method for controlling the use of a program signal in a broadcast system, comprising one or more broadcasters and a number of receivers, at least a part of the receivers can be provided with a...
7236686 Method and apparatus for transmitting a signal, method and apparatus for receiving a signal, VBI signal generating apparatus, video signal transmitting apparatus, video signal processing apparatus, video signal receiving apparatus, decoding apparatus, and recording medium for recording a video signal  
Additional information is transmitted by means of assigning a code to a particular scanning line in a VBI (vertical blanking interval). An initial value of a CRCC (Cyclic Redundancy Check Code) or...
7222101 System and method for securing data through a PDA portal  
Consumers may utilize computing devices to assist in the purchase and/or loyalty process, and in particular, the consumer may utilize a PDA to facilitate the purchase and/or loyalty process. During...
7218737 System and method for an adaptive state machine to control signal filtering in a serial link  
A method for adaptively filtering a control signal in a serial link includes monitoring for a blanking interval in a video stream having an associated clock signal and monitoring for an occurrence...
7177427 Method and system for transferring information using an encryption mode indicator  
A method and system for transferring information using an encryption mode indicator (EMI). The present invention provides several secure information communication modes in which data (e.g.,...
7162450 Business method for determining quality and integrity of data content  
A method and system for communicating data inspecting, monitoring and analysis information by signaling between digital devices is described. A process analyzes the data, which is then subjected to...
7149722 Retail transactions involving distributed and super-distributed digital content in a digital rights management (DRM) system  
To distribute digital content from a retailer to a customer, the content as issued by a content provider is retrieved. The as issued content has license acquisition information for acquiring a...
7124115 Micro payment-based advertising  
A method for electronic advertising by an advertiser includes posting an advertisement for an item offered to a buyer for purchase from a merchant on a page per fee basis at a predetermined price...
7117180 System for controlling the use of digital works using removable content repositories  
A rendering method, system, repository and software for controlling use of digital works in accordance with usage rights associated therewith and including a manner of use therefor, including...
7110982 Secure access method and system  
A secure electronic content system and method is provided. The system includes a controller including an interface component, a host system coupled to the controller, the host system configured to...
7099473 Information processing apparatus and method  
There is provided an information processing apparatus/method characterized by inputting information data, generating security data to be used to protect the information data, encoding the...
7085380 Method for modifying a copy protected video signal with a negative amplitude pulse  
An enhancement is provided for a copy protection method that discourages copying (e.g., by video taping) of video signals. The enhancement adds negative amplitude pulses to the video signal at a...
7050698 Method and apparatus for synthesizing or modifying a copy protection signal using a lowered signal level portion  
A modified Colorstripe™ copy protection process utilizes a basic anti-copy protection (ACP) signal that causes attenuation of a video signal, wherein, in one embodiment, the process modifies...
6990584 Method of and apparatus for restricting copy of digital information, and apparatus for recording digital information  
An apparatus for restricting a copy of digital information is provided with a detecting device for detecting a first watermark, which is buried in the digital information and comprises a first...
6959290 Method and apparatus for tracking states of digital works  
A method and system for controlling use of digital works in accordance with usage rights associated with the digital works. The method includes the steps of receiving a request to use a digital...
6944771 Method and apparatus for overcoming a watermark security system  
To overcome a watermark security system that is based on a limited set of possible watermark values, a collection of authentic watermarked material is created, and a substitution system provides...
6925448 Usage rights grammar and digital works having usage rights created with the grammar  
A digital work recorded on a computer readable media for use within a system having at least one repository for enforcing use of digital content in accordance with usage rights associated with the...
6868404 DIGITAL DATA RECORDING DEVICE, DIGITAL DATA MEMORY DEVICE, AND DIGITAL DATA UTILIZING DEVICE FOR CONVERTING MANAGEMENT INFORMATION WHICH CONTAINS RESTRICTIVE INFORMATION USING A DIFFERENT KEY IN EACH MANAGEMENT INFORMATION SEND/RECEIVE SESSION  
In each digital content utilize session, a memory card generates conversion key information for specifying a data conversion, while a player generates inverse conversion key information for...
6865551 Removable content repositories  
A repository for storing digital works and controlling the use of digital works in accordance with usage rights associated with the digital works and including a manner of use for the digital work....
6836549 Method and apparatus for synthesizing and reducing the effects of video copy protection signals  
A method and apparatus for defeating copy protection signals in a video signal, and also for providing copy protection signals for a video signal, is disclosed. The defeat technique generally...
6748079 Method and system for recording data on and reading data from an optical medium  
Accordingly, an improved method for recording data on an optical medium is disclosed which includes receiving and encoding a first set of data frames by a CIRC encoder to generate a second set of...
6690880 Method and apparatus for copy protection detection in a video signal  
A method and apparatus for detecting copy protection included in an input video signal is described. Two types of copy protection are particularly addressed, including techniques that imbed copy...
6587561 Key delivery in a secure broadcasting system  
A key delivery method for use in an encoded communications system in which at least one encoded item including a first item encoded with a first item control word is sent in a communication stream...
6529209 Method for providing privately viewable data in a publically viewable display  
A method for providing privately viewable data in a publically viewable display comprises the steps of: generating a sequencing pattern; generating a data signal having interspersed frames of...
6516132 Method and apparatus for improving the effects of color burst modifications to a video signal  
In the known color stripe process for preventing recording of video signals, the color burst present on each line of active video is modified so that any subsequent video tape recording of the...
6501842 Method and apparatus for modifying a video signal by back porch lowering  
Method and apparatus for modifying or reducing effects of signals added to a video signal to permit more unhampered copying and/or viewing thereof. In one version the method and apparatus replace...
6459795 Method and apparatus for enhancing the scrambling of a TV signal via erroneous clamp signals  
An improved television scrambling signal is achieved by adding erroneous clamp pulses into a television signal after the signal may have been previously scrambled, for example, by prior art...
6427047 Apparatus and method for protecting the unauthorized duplication of a signal  
An additional information produced by an additional information signal producing curcuit is spectrum-spread by a spectrum spreading code generated on the basis of the timing of the synchronous...
6421497 Method for locating copy protection pulses within selected video lines of a video signal  
In a known copy protection process for preventing recording of video signals, pseudo sync and AGC pulses are present on predetermined lines within the blanking intervals of the video signal so that...
6404889 Protection of a component video signal  
A VGA (or other component video signal) output, e.g. from a computer or DVD player, is protected so it is viewable on a VGA monitor. However, if the component video signal is converted to composite...
6345099 System and method for copy protecting computer graphics  
Copy protection is provided for the now-unprotected computer monitor port of a computer 100 in two ways: (i) delaying synchronizing signals by a time variable amount and (ii) generating pulses...
6285765 Method and apparatus for reducing effects of copy protection of composite video signal  
Copy protection for composite video signals is well known. Copy protection, while it does not prohibit making a copy per se, does render any copy (recording) of the video signal relatively...
6268889 Video signal processing apparatus and signal transmitting method  
RGB signals and sync signals H and V are inputted from a personal computer or the like. Additional information is superimposed to a vertical blanking period of the R signal. A timing generating...
6256390 Device having a digital interface and a network system using such a device and a copy protection method  
A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for...
6222978 Video signal copy guard apparatus and method  
A video signal copy guard system in which a special color burst signal (or "copy prohibition signal") is inserted into the video signal to be copy protected so that the protected signal includes...
Matches 1 - 50 out of 104 1 2 3 >