Abstract: A media stream cue point creator receives a media stream comprising at least one of an audio portion or a video portion, wherein the media stream lacks at least one indicator of a content segment within the media stream. The media stream cue point creator identifies a first segment of the plurality of segments of the media stream, wherein the segment corresponds to a segment in a segment reference data store, and creates a cue point associated with the first segment, wherein the cue point identifies at least one of a beginning or an end of the first content segment in the media stream.

Abstract: A media stream cue point creator receives a media stream comprising at least one of an audio portion or a video portion, wherein the media stream lacks at least one indicator of a content segment within the media stream. The media stream cue point creator identifies a first segment of the plurality of segments of the media stream, wherein the segment corresponds to a segment in a segment reference data store, and creates a cue point associated with the first segment, wherein the cue point identifies at least one of a beginning or an end of the first content segment in the media stream.

Abstract: A media stream cue point creator receives a media stream comprising at least one of an audio portion or a video portion, wherein the media stream lacks at least one indicator of a content segment within the media stream. The media stream cue point creator identifies a first segment of the plurality of segments of the media stream, wherein the segment corresponds to a segment in a segment reference data store, and creates a cue point associated with the first segment, wherein the cue point identifies at least one of a beginning or an end of the first content segment in the media stream.

Abstract: A media stream cue point creator receives a media stream comprising at least one of an audio portion or a video portion, wherein the media stream lacks at least one indicator of a content segment within the media stream. The media stream cue point creator identifies a first segment of the plurality of segments of the media stream, wherein the segment corresponds to a segment in a segment reference data store, and creates a cue point associated with the first segment, wherein the cue point identifies at least one of a beginning or an end of the first content segment in the media stream.

Abstract: A method and system for identifying a work in a data transfer. In accordance with this invention, a data transfer is received. The media content of a work is then read from the data transfer. The media content is then used to generate a fingerprint of the work. The fingerprint is then used to identify the work. A report including the identity of the work is then generated.

Abstract: Apparatus and method for controlling the frequency of the current in the excitation coil of a handpiece of a dental magnetostrictive ultrasonic scaling unit, or a similar transducer. A microprocessor continually samples predetermined functions of the current through the excitation coil, and periodically adjusts the frequency, by performing a coarse-stepped frequency scan, followed by a fine-stepped frequency scan until the function samples are close to predetermined optimum values. The functions can include the peak of the current and the peak of a high-pass filtered version of the current. The frequency adjustment is performed each time the handpiece is energized by the practitioner, and at frequent intervals thereafter, assuring automatic optimal frequency at all times and under all conditions. Apparatus according to the invention does not require sensing coils or complex power- or impedance-sensing circuitry and covers a wide range of resonant frequencies for different handpiece- and insert types.

Abstract: Apparatus and method for controlling the frequency of the current in the excitation coil of a handpiece of a dental magnetostrictive ultrasonic scaling unit, or a similar transducer. A microprocessor continually samples predetermined functions of the current through the excitation coil, and periodically adjusts the frequency, by performing a coarse-stepped frequency scan, followed by a fine-stepped frequency scan until the function samples are close to predetermined optimum values. The functions can include the peak of the current and the peak of a high-pass filtered version of the current. The frequency adjustment is performed each time the handpiece is energized by the practitioner, and at frequent intervals thereafter, assuring automatic optimal frequency at all times and under all conditions. Apparatus according to the invention does not require sensing coils or complex power- or impedance-sensing circuitry and covers a wide range of resonant frequencies for different handpiece- and insert types.

Abstract: Apparatus and method for controlling the frequency of the current in the excitation coil of the handpiece of a dental magnetostrictive ultrasonic scaling unit, or similar transducer. A microprocessor continually samples a predetermined function of the current through the excitation coil, and adjusts the frequency for a function maximum, performing coarse and fine frequency adjustments. The function can be proportional to the current, its time-derivative, or combination thereof. A voltage-controlled oscillator is employed, controlled by pulse-width modulation from the microprocessor. The base frequency scan is performed each time the handpiece is energized by the practitioner, assuring automatic optimal frequency adjustment at all times and under all conditions. Apparatus according to the invention does not require transformers, sensing coils, or complex power- or impedance-sensing circuitry, and covers a wide range of resonant frequencies for different insert types.

Abstract: Apparatus and method for controlling the frequency of the current in the excitation coil of the handpiece of a dental magnetostrictive ultrasonic scaling unit, or similar transducer. A microprocessor continually samples a predetermined function of the current through the excitation coil, and adjusts the frequency for a function maximum, performing coarse and fine frequency adjustments. The function can be proportional to the current, its time-derivative, or combination thereof A voltage-controlled oscillator is employed, controlled by pulse-width modulation from the microprocessor. The base frequency scan is performed each time the handpiece is energized by the practitioner, assuring automatic optimal frequency adjustment at all times and under all conditions. Apparatus according to the invention does not require transformers, sensing coils, or complex power- or impedance-sensing circuitry, and covers a wide range of resonant frequencies for different insert types.

Abstract: A method and system for identifying a work in a data transfer. In accordance with this invention, a data transfer is received. The media content of a work is then read from the data transfer. The media content is then used to generate a fingerprint of the work. The fingerprint is then used to identify the work. A report including the identity of the work is then generated.

Abstract: An apparatus is provided having a chamber in which two streams are mixed, one stream comprising a liquid, such as water, under pressure, and the other comprising a mixture of a gas, such as air, under pressure, along with an abrasive material which is soluble in the liquid. Mixing of the two streams is completed in the chamber and a single stream exits from the chamber to be directed against a tooth surface to be cleaned. The surfaces of teeth are cleaned employing the single jet issuing from the nozzle of the chamber, the jet comprising the mixture of the liquid, gas, and liquid soluble abrasive material.