Abstract: Methods and apparatus for embedding and recovering an image for use with video content are disclosed. A disclosed system embeds a real component of a spectral representation of an image into a set of video frames and embeds an imaginary component of the spectral representation of the image into a second set of video frames. The two sets of video frames are combined and broadcast. The disclosed system recovers the real component of the spectral representation of an embedded image from a first set of received video frames and the imaginary component of the spectral representation of an embedded image from a second set of the received video frames.

Abstract: A rule based biometric user authentication method and system in a computer network environment is provided. Multiple authentication rules can exist in the computer network. For example, there may be a default system-wide rule, and a rule associated with a particular user trying to log in. There may be other rules such as one associated with a remote computer from which the user is logging in, one associated with a group to which the user belongs, or one associated with a system resource to which the user requires access such as an application program or a database of confidential information. An order of precedence among the rules is then established which is used to authenticate the user.

Abstract: A rule based biometric user authentication method and system in a computer network environment is provided. Multiple authentication rules can exist in the computer network. For example, there may be a default system-wide rule, and a rule associated with a particular user trying to log in. There may be other rules such as one associated with a remote computer from which the user is logging in, one associated with a group to which the user belongs, or one associated with a system resource to which the user requires access such as an application program or a database of confidential information. An order of precedence among the rules is then established which is used to authenticate the user.

Abstract: Methods and apparatus to collect audience information associated with a media presentation are described herein. In an example method, the presence of one or more other media metering devices is monitored by a first media metering device associated with a media presentation device. A monitoring operation of the first media metering device is varied based on a presence of the one or more other media metering devices.

Abstract: A motorized woodworking tool is provided having a base with a metal top having a generally planar workpiece support surface. A low resistance surface layer is applied directly to the workpiece support surface to provide a low friction, highly durable surface for cooperating with a workpiece placed thereon for sliding contact with the surface layer during the cutting operation.

Abstract: A rule based biometric user authentication method and system in a computer network environment is provided. Multiple authentication rules can exist in the computer network. For example, there may be a default system-wide rule, and a rule associated with a particular user trying to log in. There may be other rules such as one associated with a remote computer from which the user is logging in, one associated with a group to which the user belongs, or one associated with a system resource to which the user requires access such as an application program or a database of confidential information. An order of precedence among the rules is then established which is used to authenticate the user.

Abstract: A rule based biometric user authentication method and system in a computer network environment is provided. Multiple authentication rules can exist in the computer network. For example, there may be a default system-wide rule, and a rule associated with a particular user trying to log in. There may be other rules such as one associated with a remote computer from which the user is logging in, one associated with a group to which the user belongs, or one associated with a system resource to which the user requires access such as an application program or a database of confidential information. An order of precedence among the rules is then established which is used to authenticate the user.

Abstract: A system and a method for determining whether a television is on and in near proximity is provided. The system includes a television, an audio sensor, an analog-to-digital converter, and a digital signal processor. The audio sensor, which may be portable by a member of the television audience, is situated in the same room as the television. When the television is turned on, the television emits an audio signal, the audio sensor detects the audio signal, the analog-to-digital converter converts the audio signal into a set of digital audio samples, and the digital signal processor processes the set of digital audio samples. The system may also include an amplifier to amplify the detected audio signal and to provide the amplified signal to the analog-to-digital converter.