Abstract: In environments (such as acoustic and bioelectrical environments) characterized by multiple simultaneous sources, effective blind source separation from sensor response mixtures becomes difficult as the number of sources increases—especially when the true number of sources is both unknown and changing over time. However, in some environments, non-sensor information can provide useful hypotheses for some sources. Embodiments of the present invention provide an adaptive filtering architecture for validating such source hypotheses, extracting an estimated representation of source signals corresponding to valid hypotheses, and improving the separation of the remaining “hidden” source signals from the sensor response mixtures.

Abstract: In environments (such as acoustic and bioelectrical environments) characterized by multiple simultaneous sources, effective blind source separation from sensor response mixtures becomes difficult as the number of sources increases—especially when the true number of sources is both unknown and changing over time. However, in some environments, non-sensor information can provide useful hypotheses for some sources. Embodiments of the present invention provide an adaptive filtering architecture for validating such source hypotheses, extracting an estimated representation of source signals corresponding to valid hypotheses, and improving the separation of the remaining “hidden” source signals from the sensor response mixtures.

Abstract: Disclosed herein are systems and methods for editing the content of a broadcast programming signal to provide a proprietary program signal that has been tailored to the preferences of an individual monitoring the broadcast programming signal. Accordingly, the systems and methods of the invention offer computer-integrated television monitoring.

Abstract: Disclosed herein are systems and methods for editing the content of a broadcast programming signal to provide a proprietary program signal that has been tailored to the preferences of an individual monitoring the broadcast programming signal. Accordingly, the systems and methods of the invention offer computer-integrated television monitoring.

Abstract: One embodiment of the present invention is a method for playing a portion of a media work which includes steps of: (a) playing the media work; (b) receiving input from a user; and (c) analyzing parameters to determine the portion of the media work to play; (d) altering at least a part of the portion; and (e) playing the portion.

Abstract: Disclosed herein are systems and methods for editing the content of a broadcast programming signal to provide a proprietary program signal that has been tailored to the preferences of an individual monitoring the broadcast programming signal. Accordingly, the systems and methods of the invention offer computer-integrated television monitoring.

Abstract: Disclosed herein are systems and methods for editing the content of a broadcast programming signal to provide a proprietary program signal that has been tailored to the preferences of an individual monitoring the broadcast programming signal. Accordingly, the systems and methods of the invention offer computer-integrated television monitoring.

Abstract: A technique for separating an acoustic signal into a voiced (V) component corresponding to an electrolaryngeal source and an unvoiced (U) component corresponding to a turbulence source. The technique can be used to improve the quality of electrolaryngeal speech, and may be adapted for use in a special purpose telephone. A method according to the invention extracts a segment of consecutive values from the original stream of numerical values, and performs a discrete Fourier transform on the this first group of values. Next, a second group of values is extracted from components of the discrete Fourier transform result which correspond to an electrolaryngeal fixed repetition rate, F0, and harmonics thereof. An inverse-Fourier transform is applied to the second group of values, to produce a representation of a segment of the V component. Multiple V component segments are then concatenated to form a V component sample stream.

Abstract: Techniques are provided for managing Presentation Time in a digital rendering system for presentation of temporally-ordered data when the digital rendering system includes a Variable Rate Presentation capability. In one embodiment, Presentation Time is converted to Data Time, and Data Time is reported instead of Presentation Time when only one time can be reported. In another embodiment, a predetermined one of Presentation Time and Data Time is returned in response to a request for a Current Time.

Abstract: An interactive Web book (“ibook”) system is provided that allows material to be contributed to the World Wide Web. An ibook is a self-extending, self-sustaining information-redistributing Web robot, which is resident on a data network such as the Internet or an intranet. Users may enroll with an ibook as viewers or contributors. Viewers may view ibook material, such as text or multimedia content. Contributors may contribute original material to the ibook or may create derivations of existing ibook material. Attribution information that identifies the source of material in a derivation is automatically generated. Information concerning the derivation of each work and its characteristics can be used to help the user navigate through ibook material. The ibook system keeps track of how often users access each work within an ibook. Contributors may be automatically rewarded (e.g., by a monetary distribution) based on the extent to which their contributed material is viewed by the users.

Abstract: A technique for separating an acoustic signal into a voiced (V) component corresponding to an electrolaryngeal source and an unvoiced (U) component corresponding to a turbulence source. The technique can be used to improve the quality of electrolaryngeal speech, and may be adapted for use in a special purpose telephone. A method according to the invention extracts a segment of consecutive values from the original stream of numerical values, and performs a discrete Fourier transform on the this first group of values. Next, a second group of values is extracted from components of the discrete Fourier transform result which correspond to an electrolaryngeal fixed repetition rate, F0, and harmonics thereof. An inverse-Fourier transform is applied to the second group of values, to produce a representation of a segment of the V component. Multiple V component segments are then concatenated to form a V component sample stream.

Abstract: Disclosed herein are systems and methods for editing the content of a broadcast programming signal to provide a proprietary program signal that has been tailored to the preferences of an individual monitoring the broadcast programming signal. Accordingly, the systems and methods of the invention offer computer-integrated television monitoring.

Abstract: Disclosed herein are systems and methods for editing the content of a broadcast programming signal to provide a proprietary program signal that has been tailored to the preferences of an individual monitoring the broadcast programming signal. Accordingly, the systems and methods of the invention offer computer-integrated television monitoring.