Abstract: A system receives an audio stream from an application, and performs signal analysis on the audio stream to compute (on sound and silence) a sequence of events. The sequence of events identifies a pattern comprised of at least two of sound, silence, frequency, magnitude, duration, tone, and Dual Tone Multi Frequency (DTMF). The pattern matches a similar pattern of at least two of sound, silence, frequency, magnitude, duration, tone, and DTMF, and the signal analysis is performed on sound and silence within the audio stream. The similar pattern is associated with at least one of an automated device or human answering the call. The system determines whether the sequence of events indicates the phone call is answered by the automated device or the human, based on rules in a heuristic engine and/or a known audio print from a library of known audio prints.

Abstract: A system and method matches a digitized stream of audio signals to a known audio recording by receiving an audio stream from an application. The method performs signal analysis on sound and silence in the audio stream to compute a stream audio print of the audio stream, to identify a pattern associated with the audio stream. The method compares the stream audio print to one or more known audio prints from a library of known audio prints. The method first applies a silence constraint to match periods of silence. If application of the silence constraint is successful, the method computes a total scoring metric function to identify a match between the stream audio print and the known audio print. The total scoring metric function employs a scoring metric function that is computed at a subset of temporal points in the non-silent portion of the audio stream audio print.

Abstract: A system and method matches a digitized stream of audio signals to a known audio recording by receiving an audio stream from an application. The method performs signal analysis on sound and silence in the audio stream to compute a stream audio print of the audio stream, to identify a pattern associated with the audio stream. The method compares the stream audio print to one or more known audio prints from a library of known audio prints. The method first applies a silence constraint to match periods of silence. If application of the silence constraint is successful, the method computes a total scoring metric function to identify a match between the stream audio print and the known audio print. The total scoring metric function employs a scoring metric function that is computed at a subset of temporal points in the non-silent portion of the audio stream audio print.

Abstract: A negative carrier for use with photographic enlargers consists of two main sections, an upper mounting plate and a lower mounting plate interlocked together to secure and flatten the perimeter of a negative film strip during enlarging when the strip is in registration with aligned central rectangular apertures formed in each plate. Fixed pins located symmetrically about the central aperture on the upper surface of the lower plate have shaft and head portions to establish and maintain alignment of the inserted negative film strip with respect to the central aperture of the lower plate so that frames of the negative film strip may be slid into registration with the central aperture. The upper surface of the upper mounting plate is provided with protruding tabs for holding mounted slides and flexible filter sheets in alignment with the central aperture.

Abstract: Apparatus for preparing a beverage, such as coffee, by extraction of soluble matter from a solid flavoring material into a liquid, in which a jug in the form of a thick walled vessel supported in a frame, acts as a cylinder, and a piston in the form of a capsule containing a flavoring material such as coffee, is arranged to rotate as it is moved axially within the cylinder. The capsule has liquid permeable membranes in axially opposed regions to allow liquid to be forced through the capsule to extract the flavor from the material within it without any of this material being able to escape. The capsule is detachable from the piston for refill or replacement.