Abstract: A method is performed in a network security system implemented in a computer or electronic device that is coupled to secured online resources for detecting unauthorized accesses of those secured online resources. The method includes monitoring a user activity session. It is determined whether the user activity session is indicative of a hidden session by an attacker, where the determination includes comparing the user activity session to an average user activity session.

Abstract: A method and system for improving the efficiency of speech transcription by automating the management of a varying pool of human and machine transcribers having diverse qualifications, skills, and reliability for a fluctuating load of speech transcription tasks of diverse requirements such as accuracy, promptness, privacy, and security, from sources of diverse characteristics such as language, dialect, accent, speech style, voice type, vocabulary, audio quality, and duration.

Abstract: A method and apparatus for perfectly lossless and minimal-loss interconversion of digital color data between spectral color spaces (RGB) and perceptually based luma-chroma color spaces (Y?CBCR) is disclosed. In particular, the present invention provides a process for converting digital pixels from R?G?B? space to Y?CBCR space and back, or from Y?CBCR space to R?G?B? space and back, with zero error, or, in constant-precision implementations, with guaranteed minimal error. This invention permits digital video editing and image editing systems to repeatedly interconvert between color spaces without accumulating errors. In image codecs, this invention can improve the quality of lossy image compressors independently of their core algorithms, and enables lossless image compressors to operate in a different color space than the source data without thereby becoming lossy.

Abstract: Image compression wherein a spatial prediction filter combines two adjacent samples and a corner sample in the proportion 3:3:?2, or wherein chunked decode tables are used to decode embedded prefix codes more than one bit at a time. A spectral prediction filter might be used in conjunction with the spatial prediction filter. Chunked decode tables might be used in combination with simple prediction filters.

Abstract: A method and apparatus for perfectly lossless and minimal-loss interconversion of digital color data between spectral color spaces (RGB) and perceptually based luma-chroma color spaces (Y?CBCR) is disclosed. In particular, the present invention provides a process for converting digital pixels from R?G?B? space to Y?CBCR space and back, or from Y?CBCR space to R?G?B? space and back, with zero error, or, in constant-precision implementations, with guaranteed minimal error. This invention permits digital video editing and image editing systems to repeatedly interconvert between color spaces without accumulating errors. In image codecs, this invention can improve the quality of lossy image compressors independently of their core algorithms, and enables lossless image compressors to operate in a different color space than the source data without thereby becoming lossy.

Abstract: A method and system for improving the efficiency of real-time and non-real-time speech transcription by machine speech recognizers, human dictation typists, and human voicewriters using speech recognizers. In particular, the pacing with which recorded speech is presented to transcriptionists is automatically adjusted by monitoring the transcriptionists' output by comparing the output acoustically or phonetically to the presented recorded speech as well as monitoring the resulting transcription, and accordingly adjusting the pacing.

Abstract: This invention description details systems and methods for improving human conversations by enhancing conversation participants' ability to: —Distill out and record core ideas of conversations. —Classify and prioritize these key concepts. —Recollect commitments and issues and take appropriate action. —Analyze and uncover new insight from the linkage of these ideas with those from other conversations.

Abstract: The present invention is a method and apparatus for compressing and decompressing data. In particular, the present invention provides for (de-)compressing naturalistic color-image and moving-image data, including high-precision and high-definition formats, with zero information loss, one-sample latency and in faster than real time on common computing platforms, resulting in doubled transmission, storage, and playback speed and doubled transmission bandwidth and storage capacity, and hence in doubled throughput for non-CPU-bound image-editing tasks in comparison with uncompressed formats. The present invention uses a nearly symmetrical compression-decompression scheme that provides temporal, spatial, and spectral compression, using a reversible condensing/decondensing filter, context reducer, and encoder/decoder.

Abstract: A method and apparatus for perfectly lossless and minimal-loss interconversion of digital color data between spectral color spaces (RGB) and perceptually based luma-chroma color spaces (Y?CBCR) is disclosed. In particular, the present invention provides a process for converting digital pixels from R?G?B? space to Y?CBCR space and back, or from Y?CBCR space to R?G?B? space and back, with zero error, or, in constant-precision implementations, with guaranteed minimal error. This invention permits digital video editing and image editing systems to repeatedly interconvert between color spaces without accumulating errors. In image codecs, this invention can improve the quality of lossy image compressors independently of their core algorithms, and enables lossless image compressors to operate in a different color space than the source data without thereby becoming lossy.

Abstract: The present invention is a method and apparatus for compressing and decompressing data. In particular, the present invention provides a method for compressing color video data for storage on a CD-ROM for later playback on a computer system. The present invention uses an asymmetrical compression-decompression scheme that provides color compression, temporal compression, and spatial compression. In the preferred embodiment of the invention, the color compression is accomplished in three stages. In the first stage, the colors are sampled from the source data. This generates a histogram that contains the colors of the source material. Next, these colors are quantized into the target colors. In the third step of the color compression, the actual colors on the film are mapped to the quantized colors. The temporal compression step specifies a target display rate. Only those pixels that have changed significantly from frame to frame are updated.

Abstract: The present invention is a method and apparatus for compressing and decompressing data. In particular, the present invention provides a method for compressing color video data for storage on a CD-ROM for later playback on a computer system. The present invention uses an asymmetrical compression-decompression scheme that provides color compression, temporal compression, and spatial compression. In the preferred embodiment of the invention, the color compression is accomplished in three stages. In the first stage, the colors are sampled from the source data. This generates a histogram that contains the colors of the source material. Next, these colors are quantized into the target colors. In the third step of the color compression, the actual colors on the film are mapped to the quantized colors. The temporal compression step specifies a target display rate. Only those pixels that have changed significantly from frame to frame are updated.

Abstract: The present invention processes an independent body of speech during an enrollment process and creates a set of speaker specific enrollment parameters for normalizing analysis parameters including the speaker's pitch, the frequency spectrum of the speech as a function of time, and certain measurements of the speech signal in the time-domain. A particular objective of the invention is to make these analysis parameters have the same meaning from speaker to speaker. Thus after the pre-processing performed by this invention, the parameters would look much the same for the same word independent of speaker. In this manner, variations in the speech signal caused by the physical makeup of a speaker's throat, mouth, lips, teeth, and nasal cavity would be, at least in part, reduced by the pre-processing.