Patent application number | Description | Published |
20080274225 | PROCESS AND APPARATUS FOR MICROREPLICATION - A method of embossing a sheet material includes: heating at least a portion of the sheet directly or indirectly with radiant energy from a radiant energy source; pressing a tool against the heated portion of the sheet, thereby patterning a surface of the sheet; and separating the sheet and the tool. The radiant energy may travel through a solid material that is relatively transparent to radiation, on its way to being absorbed by a relatively-absorptive material. The relatively-transparent material may be an unheated portion of the sheet, and the relatively-absorptive material may be either the tool or the heated portion of the sheet. Alternatively, the relatively-transparent material may be the tool, and the relatively-absorptive material may be all or part of the sheet. The method may be performed as one or more roll-to-roll operations. | 11-06-2008 |
20090295851 | SYSTEMS, METHODS, AND MATERIALS FOR TEMPORARY PRINTING AND INDICIA - Methods and/or systems for printing or otherwise evincing temporary indicia on media with disappearing inks are described along with suitable disappearing ink formulations and media constructions for executing the same. In particular embodiments, the methods and/or systems described employ a plurality of disappearing inks with different disappearing rates. In one embodiment, a barrier layer that is selectively used to cover a major surface of the media is employed to substantially block or otherwise regulate a rate of phase transitions (e.g., evaporation and/or sublimation) experienced by ink borne by the media. | 12-03-2009 |
20110117359 | COATING COMPOSITION, COATED ARTICLE, AND RELATED METHODS - A coating composition, method of making the coating composition, a printable media including the coating composition is described. The coating composition includes a solid material including particles and a binder material. The solid material particles have an estimated concavity value greater than approximately 0.1. | 05-19-2011 |
20110177320 | Material and Method for Producing the Same - A method for making a composite and/or structured material includes: forming a lattice construction from a plurality of solid particles, the construction being formed so as to have one or more gaps between the particles; invading the lattice construction with a fluid material such that the fluid material at least partially penetrates the gaps; and, solidifying the material which invaded the lattice construction to form a composite material. In one suitable embodiment, the method further includes removing at least a portion of the lattice construction from the composite material thereby forming at the location of the removed portion one or more pores in the solidified material that invaded the construction. | 07-21-2011 |
20120315461 | Porous Material and Method for Producing the Same - A method for making a composite and/or structured material includes: forming a lattice construction from a plurality of solid particles, the construction being formed so as to have one or more gaps between the particles; invading the lattice construction with a fluid material such that the fluid material at least partially penetrates the gaps; and, solidifying the material which invaded the lattice construction to form a composite material. In one suitable embodiment, the method further includes removing at least a portion of the lattice construction from the composite material thereby forming at the location of the removed portion one or more pores in the solidified material that invaded the construction. | 12-13-2012 |
20140129184 | Systems, Methods, and Media for Labeling Three Dimensional Surfaces - A strategy for predicting the occurrence of labeling defects is described. Also described are associated systems and computer-readable media for predicting such defects. | 05-08-2014 |
20140202028 | Inerted Plate Dryer and Method of Drying Solvent Based Coating - An inerted plate dryer for drying solvent based coating is disclosed. The dryer uses two tiers of substantially parallel heating plates that are located not more than 10 cm apart. A moving web with solvent based coating is passed through the dryer, and runs closer to one of the heating plates. The method of using such inerted plate dryer is also disclosed. | 07-24-2014 |
20150231833 | Systems and Methods for Making Porous Films, Fibers, Spheres, and Other Articles - Multiple processes for preparing porous articles are described. The porous articles can be in a wide array of shapes and configurations. The methods include providing a soluble material in particulate form and forming a packed region from the material. The methods also include contacting a flowable polymeric material with the packed region such that the polymeric material is disposed in voids in the packed region. The polymeric material is then at least partially solidified. The soluble material is then removed such as by solvent washing to thereby produce desired porous articles. Also described are systems for performing the various processes. | 08-20-2015 |
20150239004 | Particulate Dispensing Apparatus - An apparatus for selectively dispensing granular or powdered materials is described. The apparatus includes a container which is positioned between a moving mesh web that passes under the container. The apparatus also includes one or more blades which extend into the container and contact material to be dispensed. Active or passive vibration may be used to promote dispensing. | 08-27-2015 |
20150283578 | Functional Micro- and/or Nano-Structure Bearing Constructions and/or Methods for Fabricating Same - A method is provided for fabricating a construction ( | 10-08-2015 |
Patent application number | Description | Published |
20130156216 | PLUG INSERTION DETECTION - Techniques for detecting full insertion of a media plug into a corresponding jack. In an exemplary embodiment, first insertion detection circuitry for detecting the presence of a load is coupled to an innermost terminal of the jack. For North American type audio plugs, the first insertion detection circuitry detects the presence of a left headphone channel coupled to the innermost terminal of the jack. Coupling the insertion detection circuitry to the innermost terminal of the jack advantageously allows detection only when the plug is fully inserted into the jack. Additional detection circuitry may be provided and coupled to the other terminals of the jack. The disclosed techniques may readily be applied to other types of media plugs, e.g., European audio plugs, video plugs, etc. | 06-20-2013 |
20130158919 | PLUG TYPE DETECTION - Techniques for detecting the type of a media plug inserted into a corresponding jack. In an exemplary embodiment, the output of a first power amplifier for driving a media plug terminal, e.g., the right headphone or left headphone, is selectively coupled to a reference voltage. Measurements of the voltage at a microphone terminal of the media plug may be alternately made for the reference voltage being at a first value and a second value. In an embodiment, the first power amplifier output voltage may be varied by opening or closing a switch. Alternatively, the first power amplifier output voltage may be directly set by an input voltage to the first power amplifier. By detecting changes in the voltages measured at the microphone terminal, it may be determined whether the media plug is of a North American type or European type. | 06-20-2013 |
20130158921 | LOAD IMPEDANCE DETECTION - Techniques for determining the impedance of a load coupled to an amplifier. In an exemplary embodiment, a mirroring transistor is provided to mirror the current through a transistor of the amplifier output stage to a predetermined ratio. The impedance of the load may be calculated based on the mirrored current and the amplifier output voltage provided to the load. In an exemplary embodiment, the mirrored current may be digitized and provided to a digital load impedance calculation block, which estimates the load impedance based on the digitized current and an indication of the amplifier output voltage. Further techniques are described for calibrating the load impedance calculation scheme, and for differentiating between stereo and mono audio plugs using said techniques. | 06-20-2013 |
20130249633 | LOW GM TRANSCONDUCTOR - Techniques for designing a transconductor configurable to have a low transconductance. In one aspect, a voltage to current conversion module is coupled to a 1:N current replication module. The voltage to current conversion module may be implemented as an operational amplifier configured with negative feedback to generate a current through a transistor, wherein such current is proportional to the difference between an input voltage and a common-mode reference. The 1:N current replication module is configured to mirror the generated current in another transistor, to a predetermined ratio, such that the output current is also proportional to the difference between the input voltage and the common-mode reference. In exemplary embodiments, the output stage driving the output current may be configured to operate as a Class A, Class B, or Class AB type amplifier. | 09-26-2013 |
20130320993 | DEVICE PLUG DETECTION APPARATUS AND METHOD - A particular apparatus includes a receptacle having a first pin configured to contact a tip region of the device plug at a first location when the device plug is inserted into the receptacle. The first location may be located between a midpoint of the tip region and a tip of the device plug. The receptacle further includes a second pin configured to contact a second region of the device plug at a second location. The receptacle further includes a third pin configured to contact a third region of the device plug at a third location. The receptacle further includes a fourth pin configured to contact a fourth region of the device. | 12-05-2013 |
20140093109 | CHANNEL CROSSTALK REMOVAL - Techniques for removing crosstalk from a system, e.g., an audio system, having first and second (e.g., left and right) channels. In an aspect, first and second output voltages of corresponding first and second amplifiers are sampled during a calibration mode, in which one of the amplifiers is driven with a reference voltage, and the output of the other of the amplifiers is configured to have a high impedance. The sampled first and second output voltages may be digitized for processing by a processor to estimate a crosstalk removal function. The crosstalk removal function may then be multiplied with the input signals and added in a cross-channel manner to the first and second input signals prior to amplification to remove crosstalk from the system. In certain aspects, multiple reference voltages may be applied during the calibration mode to improve the estimate of the crosstalk removal function. | 04-03-2014 |
20140314243 | CLICK AND POP NOISE REDUCTION IN HEADPHONES - A method and an apparatus are provided. The apparatus reduces noise in headphones due to a change in a current or a voltage in headphones while determining an impedance of the headphones. The apparatus generates a digital waveform that reduces noise in the headphones when applied for an impedance determination. The apparatus converts the digital waveform to an analog waveform. The apparatus applies the analog waveform to an input of the headphones while reducing the noise in the headphones due to the application of the analog waveform for the impedance determination. The apparatus determines the impedance of the headphones based on the applied analog waveform. A first derivative of the analog waveform may be continuous. In particular, the analog waveform may be āsā shaped. The digital waveform may be generated based on a ramp digital waveform. The ramp digital waveform may be generated based on a step digital waveform. | 10-23-2014 |
20150280660 | MULTI-STAGE SWITCHED-CAPACITOR DC BLOCKING CIRCUIT FOR AUDIO FRONTEND - An integrated DC blocking amplifier circuit, including: an operational amplifier configured in a differential amplifier; and at least first and second two-stage switched-capacitor circuits, each two stage switched-capacitor circuit including a first-stage circuit and a second-stage circuit, wherein the first two-stage switched capacitor circuit is connected to a positive feedback path of the operational amplifier and the second two-stage switched capacitor circuit is connected to a negative feedback path of the operational amplifier, wherein the first-stage circuit is switched at a relatively low switching frequency, while the second-stage circuit is switched at a relatively high switching frequency. | 10-01-2015 |
20150280668 | CAPACITIVE PROGRAMMABLE GAIN AMPLIFIER - An apparatus includes an operational amplifier and a plurality of capacitors coupled to an input terminal of the operational amplifier and configured to be selectively coupled to receive one of an input voltage signal and an output voltage signal of the operational amplifier. | 10-01-2015 |
20150349710 | RC OSCILLATOR BASED ON DELAY-FREE COMPARATOR - Cancelling a delay in a comparator of an RC oscillator configured to generate a clock pulse, including: selectively coupling a plurality of current sources to a first capacitor, a second capacitor, and a resistor, wherein the plurality of current source charge and discharge the first capacitor and the second capacitor, and charge the resistor; charging the first capacitor at a higher rate during a first phase of the clock pulse than a second phase of the clock pulse, and charging the second capacitor at a higher rate during a third phase of the clock pulse than a fourth phase of the clock pulse; and generating the clock pulse by enabling the comparator to compare a voltage on the first or second capacitor with a voltage on the resistor. | 12-03-2015 |
Patent application number | Description | Published |
20080274225 | PROCESS AND APPARATUS FOR MICROREPLICATION - A method of embossing a sheet material includes: heating at least a portion of the sheet directly or indirectly with radiant energy from a radiant energy source; pressing a tool against the heated portion of the sheet, thereby patterning a surface of the sheet; and separating the sheet and the tool. The radiant energy may travel through a solid material that is relatively transparent to radiation, on its way to being absorbed by a relatively-absorptive material. The relatively-transparent material may be an unheated portion of the sheet, and the relatively-absorptive material may be either the tool or the heated portion of the sheet. Alternatively, the relatively-transparent material may be the tool, and the relatively-absorptive material may be all or part of the sheet. The method may be performed as one or more roll-to-roll operations. | 11-06-2008 |
20090206474 | ELECTRICAL DEVICE AND METHOD OF MANUFACTURING ELECTRICAL DEVICES USING FILM EMBOSSING TECHNIQUES TO EMBED INTEGRATED CIRCUITS INTO FILM - An electrical device and method of making same is provided wherein a chip or other electrical component is embedded in a substrate. The substrate may be a thermoplastic material capable of deforming around the chip and at least partially encasing the chip when heat and/or pressure is applied to the substrate. Electromagnetic radiation such a near infrared radiation can be used to heat the substrate. The substrate may include a compressible layer that can be compressed and/or crushed to form a recess into which the chip can be inserted. Once embedded, the chip or electrical component is secured by the substrate and may be coupled to another electrical component. A method of making an RFID transponder is also provided wherein an RFID chip is embedded in a substrate using heat and/or pressure, an antenna structure is applied to the substrate, and the RFID chip and antenna structure are coupled together. | 08-20-2009 |
20110177320 | Material and Method for Producing the Same - A method for making a composite and/or structured material includes: forming a lattice construction from a plurality of solid particles, the construction being formed so as to have one or more gaps between the particles; invading the lattice construction with a fluid material such that the fluid material at least partially penetrates the gaps; and, solidifying the material which invaded the lattice construction to form a composite material. In one suitable embodiment, the method further includes removing at least a portion of the lattice construction from the composite material thereby forming at the location of the removed portion one or more pores in the solidified material that invaded the construction. | 07-21-2011 |
20120315461 | Porous Material and Method for Producing the Same - A method for making a composite and/or structured material includes: forming a lattice construction from a plurality of solid particles, the construction being formed so as to have one or more gaps between the particles; invading the lattice construction with a fluid material such that the fluid material at least partially penetrates the gaps; and, solidifying the material which invaded the lattice construction to form a composite material. In one suitable embodiment, the method further includes removing at least a portion of the lattice construction from the composite material thereby forming at the location of the removed portion one or more pores in the solidified material that invaded the construction. | 12-13-2012 |
20140129184 | Systems, Methods, and Media for Labeling Three Dimensional Surfaces - A strategy for predicting the occurrence of labeling defects is described. Also described are associated systems and computer-readable media for predicting such defects. | 05-08-2014 |
20150283578 | Functional Micro- and/or Nano-Structure Bearing Constructions and/or Methods for Fabricating Same - A method is provided for fabricating a construction ( | 10-08-2015 |