Patent application number | Description | Published |
20110095007 | THERMAL FLUX PROCESSING BY SCANNING A FOCUSED LINE BEAM - The thermal processing device includes a stage, a continuous wave electromagnetic radiation source, a series of lenses, a translation mechanism, a detection module, a three-dimensional auto-focus, and a computer system. The stage is configured to receive a substrate thereon. The continuous wave electromagnetic radiation source is disposed adjacent the stage, and is configured to emit continuous wave electromagnetic radiation along a path towards the substrate. The series of lenses is disposed between the continuous wave electromagnetic radiation source and the stage, and are configured to condense the continuous wave electromagnetic radiation into a line of continuous wave electromagnetic radiation on a surface of the substrate. The translation mechanism is configured to translate the stage and the line of continuous wave electromagnetic radiation relative to one another. The detection module is positioned within the path, and is configured to detect continuous wave electromagnetic radiation. | 04-28-2011 |
20110133742 | LAMP FAILURE DETECTOR - An apparatus and method for detecting lamp failure is described for an array of lamps used in a rapid thermal processing system. The lamp failure detection system enables identification of a failed lamp among a plurality of lamps, and also provides identification of the failure type. The apparatus applies a lamp failure detection method to the voltage drop values measured across each lamp to determine if a lamp is in a failure state. In one embodiment, a field programmable gate array is used to apply a failure detection method to the lamp voltage values. | 06-09-2011 |
20110206358 | High Efficiency High Accuracy Heater Driver - A rapid thermal process chamber having a lamp driver circuit that includes two transistors and two diodes is described. The rapid thermal process chamber includes a plurality of halogen lamps, the lamp driver, a temperature sensor that measures wafer temperature, a temperature controller connected to the temperature sensor and to the lamp driver, the temperature controller providing control signals to the lamp driver that are functions of the wafer temperature and a desired temperature. The lamp driver includes two transistors that are controlled by the control signals so that the power factor of the power supplied to the plurality of halogen lamps is in the range of 0.9 to 1. | 08-25-2011 |
20120170603 | PROTECTION DEVICE FOR SOLID STATE LASER - Embodiments provide systems, devices, and methods for controlling a laser. The system includes a controller to control a laser, a ramp generator to ramp down laser power, the ramp generator electrically coupled with the controller and coupleable with the laser, and a hardware protection system electrically coupled with the ramp generator, wherein the ramp generator monitors signals sent from the controller and the hardware protection system to the ramp generator to detect signal failure and ramps down the laser power upon signal failure detection. The method includes sending a control status signal from a controller for a laser to a ramp generator, monitoring the control status signal for missing pulses, sending a hardware interlock status signal from a hardware protection system to the ramp generator, monitoring the hardware interlock status signal for signal failure, and ramping down laser power upon detection of missing pulses or signal failure. | 07-05-2012 |
20120205347 | Scanned laser light source - The thermal processing device includes a stage, a continuous wave electromagnetic radiation source, a series of lenses, a translation mechanism, a detection module, a three-dimensional auto-focus, and a computer system. The stage is configured to receive a substrate thereon. The continuous wave electromagnetic radiation source is disposed adjacent the stage, and is configured to emit continuous wave electromagnetic radiation along a path towards the substrate. The series of lenses is disposed between the continuous wave electromagnetic radiation source and the stage, and are configured to condense the continuous wave electromagnetic radiation into a line of continuous wave electromagnetic radiation on a surface of the substrate. The translation mechanism is configured to translate the stage and the line of continuous wave electromagnetic radiation relative to one another. The detection module is positioned within the path, and is configured to detect continuous wave electromagnetic radiation. | 08-16-2012 |
20130002140 | LAMP FAILURE DETECTOR - Apparatus and methods for detecting lamp failure in a rapid thermal processing (RTP) tool are provided. Lamp failure detection systems are provided that can accommodate DC and/or AC voltages. The systems sample voltage signals along a circuit path formed by at least two serially connected lamps, calculate a voltage drop across the first lamp of the at least two serially connected lamps based on the sampled voltage signals, and determine whether a lamp failure has occurred based on a relationship between the voltage drop across the first lamp and a total voltage applied to the circuit path. | 01-03-2013 |
20130287377 | DIRECT CURRENT LAMP DRIVER FOR SUBSTRATE PROCESSING - Methods and apparatus for heating a substrate in a process chamber are provided herein. In some embodiments, an apparatus for heating a substrate in a process chamber includes a lamp group comprising one or more sets of lamps to provide radiant energy to heat a substrate when disposed in the process chamber, wherein each set of lamps comprises a plurality of lamps wired in series, and wherein each set of lamps is wired in parallel with respect to other sets of the one or more sets of lamps; an alternating current (AC) power source to produce an AC input waveform; and a lamp driver to power the lamp group, the lamp driver including a rectifier coupled to the AC power source to convert the AC input waveform to DC voltage; and a direct current to direct current (DC/DC) converter to reduce voltage of the DC power. | 10-31-2013 |
20140027440 | High Efficiency High Accuracy Heater Driver - A thermal process chamber having a lamp driver circuit that includes two transistors and two diodes is described. The thermal process chamber includes a plurality of halogen lamps, the lamp driver, a temperature sensor that measures wafer temperature, a temperature controller connected to the temperature sensor and to the lamp driver, the temperature controller providing control signals to the lamp driver that are functions of the wafer temperature and a desired temperature. The lamp driver includes two transistors that are controlled by the control signals so that the power factor of the power supplied to the plurality of halogen lamps is in the range of 0.9 to 1. | 01-30-2014 |
20150053659 | Thermal processing by scanning a laser line beam - The thermal processing device includes a stage, a continuous wave electromagnetic radiation source, a series of lenses, a translation mechanism, a detection module, a three-dimensional auto-focus, and a computer system. The stage is configured to receive a substrate thereon. The continuous wave electromagnetic radiation source is disposed adjacent the stage, and is configured to emit continuous wave electromagnetic radiation along a path towards the substrate. The series of lenses is disposed between the continuous wave electromagnetic radiation source and the stage, and are configured to condense the continuous wave electromagnetic radiation into a line of continuous wave electromagnetic radiation on a surface of the substrate. The translation mechanism is configured to translate the stage and the line of continuous wave electromagnetic radiation relative to one another. The detection module is positioned within the path, and is configured to detect continuous wave electromagnetic radiation. | 02-26-2015 |
20150054404 | LAMP FAILURE DETECTOR - Apparatus and methods for detecting lamp failure in a rapid thermal processing (RTP) tool are provided. Lamp failure detection systems are provided that can accommodate DC and/or AC voltages. The systems sample voltage signals along a circuit path formed by at least two serially connected lamps, calculate a voltage drop across the first lamp of the at least two serially connected lamps based on the sampled voltage signals, and determine whether a lamp failure has occurred based on a relationship between the voltage drop across the first lamp and a total voltage applied to the circuit path. | 02-26-2015 |
Patent application number | Description | Published |
20120243694 | SYSTEMS AND METHODS FOR SEGMENTING AND/OR CLASSIFYING AN AUDIO SIGNAL FROM TRANSFORMED AUDIO INFORMATION - A system and method may be provided to segment and/or classify an audio signal from transformed audio information. Transformed audio information representing a sound may be obtained. The transformed audio information may specify magnitude of a coefficient related to energy amplitude as a function of frequency for the audio signal and time. Features associated with the audio signal may be obtained from the transformed audio information. Individual ones of the features may be associated with a feature score relative to a predetermined speaker model. An aggregate score may be obtained based on the feature scores according to a weighting scheme. The weighting scheme may be associated with a noise and/or SNR estimation. The aggregate score may be used for segmentation to identify portions of the audio signal containing speech of one or more different speakers. For classification, the aggregate score may be used to determine a likely speaker model to identify a source of the sound in the audio signal. | 09-27-2012 |
20120243705 | Systems And Methods For Reconstructing An Audio Signal From Transformed Audio Information - A system and method may be configured to reconstruct an audio signal from transformed audio information. The audio signal may be resynthesized based on individual harmonics and corresponding pitches determined from the transformed audio information. Noise may be subtracted from the transformed audio information by interpolating across peak points and across trough points of harmonic pitch paths through the transformed audio information, and subtracting values associated with the trough point interpolations from values associated with the peak point interpolations. Noise between harmonics of the sound may be suppressed in the transformed audio information by centering functions at individual harmonics in the transformed audio information, the functions serving to suppress noise between the harmonics. | 09-27-2012 |
20120243707 | SYSTEM AND METHOD FOR PROCESSING SOUND SIGNALS IMPLEMENTING A SPECTRAL MOTION TRANSFORM - A system and method are provided for processing sound signals. The processing may include identifying individual harmonic sounds represented in sound signals, determining sound parameters of harmonic sounds, classifying harmonic sounds according to source, and/or other processing. The processing may include transforming the sound signals (or portions thereof) into a space which expresses a transform coefficient as a function of frequency and chirp rate. This may facilitate leveraging of the fact that the individual harmonics of a single harmonic sound may have a common pitch velocity (which is related to the chirp rate) across all of its harmonics in order to distinguish an the harmonic sound from other sounds (harmonic and/or non-harmonic) and/or noise. | 09-27-2012 |
20130041656 | SYSTEM AND METHOD FOR TRACKING SOUND PITCH ACROSS AN AUDIO SIGNAL - A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across the audio signal may take into account change in pitch by determining at individual time sample windows in the signal duration an estimated pitch and an estimated fractional chirp rate of the harmonics at the estimated pitch. The estimated pitch and the estimated fractional chirp rate may then be implemented to determine an estimated pitch for another time sample window in the signal duration with an enhanced accuracy and/or precision. | 02-14-2013 |
20130041657 | SYSTEM AND METHOD FOR TRACKING SOUND PITCH ACROSS AN AUDIO SIGNAL USING HARMONIC ENVELOPE - A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across the audio signal may take into account change in pitch by determining at individual time sample windows in the signal duration an estimated pitch and a representation of harmonic envelope at the estimated pitch. The estimated pitch and the representation of harmonic envelope may then be implemented to determine an estimated pitch for another time sample window in the signal duration with an enhanced accuracy and/or precision. | 02-14-2013 |
20130041658 | SYSTEM AND METHOD OF PROCESSING A SOUND SIGNAL INCLUDING TRANSFORMING THE SOUND SIGNAL INTO A FREQUENCY-CHIRP DOMAIN - A system and method may be configured to process an audio signal. The system and method may track pitch, chirp rate, and/or harmonic envelope across the audio signal, may reconstruct sound represented in the audio signal, and/or may segment or classify the audio signal. A transform may be performed on the audio signal to place the audio signal in a frequency chirp domain that enhances the sound parameter tracking, reconstruction, and/or classification. | 02-14-2013 |
20140037095 | SYSTEM AND METHOD OF PROCESSING A SOUND SIGNAL INCLUDING TRANSFORMING THE SOUND SIGNAL INTO A FREQUENCY-CHIRP DOMAIN - A system and method may be configured to process an audio signal. The system and method may track pitch, chirp rate, and/or harmonic envelope across the audio signal, may reconstruct sound represented in the audio signal, and/or may segment or classify the audio signal. A transform may be performed on the audio signal to place the audio signal in a frequency chirp domain that enhances the sound parameter tracking, reconstruction, and/or classification. | 02-06-2014 |
20140086420 | SYSTEM AND METHOD FOR TRACKING SOUND PITCH ACROSS AN AUDIO SIGNAL USING HARMONIC ENVELOPE - A system and method may be configured to analyze audio information derived from an audio signal. The system and method may track sound pitch across the audio signal. The tracking of pitch across the audio signal may take into account change in pitch by determining at individual time sample windows in the signal duration an estimated pitch and a representation of harmonic envelope at the estimated pitch. The estimated pitch and the representation of harmonic envelope may then be implemented to determine an estimated pitch for another time sample window in the signal duration with an enhanced accuracy and/or precision. | 03-27-2014 |
20140376727 | SYSTEM AND METHOD FOR PROCESSING SOUND SIGNALS IMPLEMENTING A SPECTRAL MOTION TRANSFORM - A system and method are provided for processing sound signals. The processing may include identifying individual harmonic sounds represented in sound signals, determining sound parameters of harmonic sounds, classifying harmonic sounds according to source, and/or other processing. The processing may include transforming the sound signals (or portions thereof) into a space which expresses a transform coefficient as a function of frequency and chirp rate. This may facilitate leveraging of the fact that the individual harmonics of a single harmonic sound may have a common pitch velocity (which is related to the chirp rate) across all of its harmonics in order to distinguish an the harmonic sound from other sounds (harmonic and/or non-harmonic) and/or noise. | 12-25-2014 |
20140376730 | SYSTEMS AND METHODS FOR SEGMENTING AND/OR CLASSIFYING AN AUDIO SIGNAL FROM TRANSFORMED AUDIO INFORMATION - A system and method may be provided to segment and/or classify an audio signal from transformed audio information. Transformed audio information representing a sound may be obtained. The transformed audio information may specify magnitude of a coefficient related to energy amplitude as a function of frequency for the audio signal and time. Features associated with the audio signal may be obtained from the transformed audio information. Individual ones of the features may be associated with a feature score relative to a predetermined speaker model. An aggregate score may be obtained based on the feature scores according to a weighting scheme. The weighting scheme may be associated with a noise and/or SNR estimation. The aggregate score may be used for segmentation to identify portions of the audio signal containing speech of one or more different speakers. For classification, the aggregate score may be used to determine a likely speaker model to identify a source of the sound in the audio signal. | 12-25-2014 |
20150112688 | Systems and Methods for Reconstructing an Audio Signal from Transformed Audio Information - A system and method may be configured to reconstruct an audio signal from transformed audio information. The audio signal may be resynthesized based on individual harmonics and corresponding pitches determined from the transformed audio information. Noise may be subtracted from the transformed audio information by interpolating across peak points and across trough points of harmonic pitch paths through the transformed audio information, and subtracting values associated with the trough point interpolations from values associated with the peak point interpolations. Noise between harmonics of the sound may be suppressed in the transformed audio information by centering functions at individual harmonics in the transformed audio information, the functions serving to suppress noise between the harmonics. | 04-23-2015 |
20150120285 | Systems and Methods for Reconstructing an Audio Signal from Transformed Audio Information - A system and method may be configured to reconstruct an audio signal from transformed audio information. The audio signal may be resynthesized based on individual harmonics and corresponding pitches determined from the transformed audio information. Noise may be subtracted from the transformed audio information by interpolating across peak points and across trough points of harmonic pitch paths through the transformed audio information, and subtracting values associated with the trough point interpolations from values associated with the peak point interpolations. Noise between harmonics of the sound may be suppressed in the transformed audio information by centering functions at individual harmonics in the transformed audio information, the functions serving to suppress noise between the harmonics. | 04-30-2015 |
Patent application number | Description | Published |
20090277361 | CRADLE AND LEG JOINTS FOR CUSTOMIZABLE FURNITURE - A cradle joint for customizing furniture comprises a recess in a horizontal support bracket, the recess defined by two opposing jaws forming a top opening, two angled support ribs, and a bottom bar, two rod cams disposed in the recess adjacent the side walls and movable between rod cam clearance pockets disposed below the jaws and lower corner regions adjacent the bottom bar, the bottom bars having inclined apertures for receiving threaded fasteners, the fasteners threadedly received in the rod cams, a cross beam have an I-shaped profile, two upper flanges and two lower flanges, the cross beam received in the recess perpendicularly to the support bracket and secured in the recess by tightening the rod cams into overlocking engagement with the oblique upper portions of the outer edges of the lower flanges. | 11-12-2009 |
20090279941 | ADJUSTABLE JOINT FOR CUSTOMIZABLE FURNITURE - An adjustable furniture joint for customizing furniture comprises a vertically disposed support having a longitudinally extending channel and opposing jaws defining an opening to the channel, the jaws having forward surfaces, one or more rear surfaces of a horizontal bracket in abutting engagement with the forward surfaces, a key cam having a neck, a head extending from said neck, and a longitudinal dimension, the head having a cross-sectional profile having two laterally extending ears, each ear having an inner surface inclined at an acute angle relative to the longitudinal dimension, the head slidingly received in the channel, the jaws having out-turned surfaces generally in parallel alignment and in abutting engagement with the inner surfaces of the ears, and means for biasing the head towards the bracket, application of the biasing force causing the inner surfaces of the ears to impinge on the out-turned surfaces of the jaws and urging the jaws inwardly towards the neck. | 11-12-2009 |
20090294391 | SHELF ASSEMBLY FOR CUSTOMIZABLE FURNITURE - An adjustable shelf assembly comprises a plurality of ribs, a rib cam associated with each rib, and a support beam having a substantially I-shaped profile. The rib cam has a transversely extending slot including a floor. Each rib has a shelf-retaining surface, a T-shaped downwardly-opening aperture, and two inwardly extending opposing rib cam flanges. The beam has two upper beam flanges and two annular channels. The upper beam flanges slide into the upper recesses of the aperture such that the rib is captured on the beam, and each rib cam flange extends into one of the channels. The rib cam slides into one of the channels with one of the rib cam flanges captured in the slot. In the channel, the rib cam is rotatable around its longitudinal axis between an unlocked position and a locked position in which the slot floor bears down on the rib cam flange. | 12-03-2009 |
20130037667 | ADJUSTABLE FURNITURE ATTACHMENT CLAMP - An adjustable furniture attachment clamp for attachment to the underside of a furniture item with two spaced apart arm fasteners, the clamp comprising a clamp body having oppositely disposed laterally extending forked arms, each arm having a fastener slot having a width greater than the shanks of the arm fasteners, the fastener slots including inner ends spaced apart a distance less than the arm fasteners, such that lateral and forward-to-back play is provided for adjustment of the clamp relative to the furniture item, the clamp also having a downwardly facing beam pocket including a beam capture surface for holding the right upper beam flange of a support I-beam and a cam having a binding face for pressing against the lower portion of the left upper beam flange when a cam fastener is tightened for attaching the clamp body to the I-beam. | 02-14-2013 |
Patent application number | Description | Published |
20090277361 | CRADLE AND LEG JOINTS FOR CUSTOMIZABLE FURNITURE - A cradle joint for customizing furniture comprises a recess in a horizontal support bracket, the recess defined by two opposing jaws forming a top opening, two angled support ribs, and a bottom bar, two rod cams disposed in the recess adjacent the side walls and movable between rod cam clearance pockets disposed below the jaws and lower corner regions adjacent the bottom bar, the bottom bars having inclined apertures for receiving threaded fasteners, the fasteners threadedly received in the rod cams, a cross beam have an I-shaped profile, two upper flanges and two lower flanges, the cross beam received in the recess perpendicularly to the support bracket and secured in the recess by tightening the rod cams into overlocking engagement with the oblique upper portions of the outer edges of the lower flanges. | 11-12-2009 |
20090279941 | ADJUSTABLE JOINT FOR CUSTOMIZABLE FURNITURE - An adjustable furniture joint for customizing furniture comprises a vertically disposed support having a longitudinally extending channel and opposing jaws defining an opening to the channel, the jaws having forward surfaces, one or more rear surfaces of a horizontal bracket in abutting engagement with the forward surfaces, a key cam having a neck, a head extending from said neck, and a longitudinal dimension, the head having a cross-sectional profile having two laterally extending ears, each ear having an inner surface inclined at an acute angle relative to the longitudinal dimension, the head slidingly received in the channel, the jaws having out-turned surfaces generally in parallel alignment and in abutting engagement with the inner surfaces of the ears, and means for biasing the head towards the bracket, application of the biasing force causing the inner surfaces of the ears to impinge on the out-turned surfaces of the jaws and urging the jaws inwardly towards the neck. | 11-12-2009 |
20090294391 | SHELF ASSEMBLY FOR CUSTOMIZABLE FURNITURE - An adjustable shelf assembly comprises a plurality of ribs, a rib cam associated with each rib, and a support beam having a substantially I-shaped profile. The rib cam has a transversely extending slot including a floor. Each rib has a shelf-retaining surface, a T-shaped downwardly-opening aperture, and two inwardly extending opposing rib cam flanges. The beam has two upper beam flanges and two annular channels. The upper beam flanges slide into the upper recesses of the aperture such that the rib is captured on the beam, and each rib cam flange extends into one of the channels. The rib cam slides into one of the channels with one of the rib cam flanges captured in the slot. In the channel, the rib cam is rotatable around its longitudinal axis between an unlocked position and a locked position in which the slot floor bears down on the rib cam flange. | 12-03-2009 |
20130037667 | ADJUSTABLE FURNITURE ATTACHMENT CLAMP - An adjustable furniture attachment clamp for attachment to the underside of a furniture item with two spaced apart arm fasteners, the clamp comprising a clamp body having oppositely disposed laterally extending forked arms, each arm having a fastener slot having a width greater than the shanks of the arm fasteners, the fastener slots including inner ends spaced apart a distance less than the arm fasteners, such that lateral and forward-to-back play is provided for adjustment of the clamp relative to the furniture item, the clamp also having a downwardly facing beam pocket including a beam capture surface for holding the right upper beam flange of a support I-beam and a cam having a binding face for pressing against the lower portion of the left upper beam flange when a cam fastener is tightened for attaching the clamp body to the I-beam. | 02-14-2013 |