Patent application number | Description | Published |
20150024163 | FORCE SPUN SUB-MICRON FIBER AND APPLICATIONS - A process of forming a non-woven web including spinning continuous polymeric filaments including one selected from a poly(phenylene ether) component, a poly(phenylene ether)-polysiloxane block copolymer, and combinations thereof. The filaments can have a length to diameter ratio that is more than 1,000,000, and a diameter ranging from 50 nanometers to 5 microns. The spinning can include passing a polymer through a spinneret having a plurality of orifices in a non-electrospinning environment. The process can further include chopping the plurality of continuous filaments and obtaining a plurality of chopped nano-fibers and forming the nano-fibers into a nonwoven web. The spinning can be conducted at a rate of at least 300 grams/hour/spinneret. | 01-22-2015 |
20150024185 | FORCE SPUN SUB-MICRON FIBER AND APPLICATIONS - A process of forming a non-woven web including spinning a plurality of continuous polymeric filaments including a polycarbonate homopolymer component, a polycarbonate copolymer component, and combinations thereof at a rate of at least 300 grams/hour/spinneret. | 01-22-2015 |
20150024186 | FORCE SPUN SUB-MICRON FIBER AND APPLICATIONS - A process of forming a non-woven web including spinning a plurality of continuous polymeric filaments including a polyetherimide component selected from polyetherimide homopolymers, polyetherimide co-polymers, aromatic polyester homopolymers, aromatic polyester copolymers, and combinations thereof at a rate of at least 300 grams/hour/spinneret. The continuous filaments have a diameter ranging from 50 nanometer to 5 microns, preferably 50 nanometers to 2 microns. | 01-22-2015 |
Patent application number | Description | Published |
20090163609 | LOW DENSITY AND HIGH DENSITY POLYETHERIMIDE FOAM MATERIALS AND ARTICLES INCLUDING THE SAME - Polyetherimide foam materials, articles that include these foam materials and methods of making these foam materials and articles. The foam extrusion process uses selected blowing agents, equipment design and processing conditions to produce continuously extruded foam with a substantially uniform cell size in a lower density PEI foam, such as 25 to 50 g/L or a higher density PEI foam, such as 120 to 300 g/L. Due to the greater densities that can be produced as well as the characteristics inherent in polyetherimide articles, the resulting foam materials are suitable for a much broader range of applications. | 06-25-2009 |
20090163610 | CONTINUOUS PROCESS FOR MAKING POLYETHERIMIDE FOAM MATERIALS AND ARTICLES MADE THEREFROM - A continuous process of making polyetherimide foam materials and articles that include these foam materials. The continuous process is a foam extrusion process that uses selected blowing agents, equipment design and processing conditions to continuously produce extruded foam with a substantially uniform cell size in a wide range of cell densities. Subsequent heating may be used in certain embodiments to remove any residual components from the foam, such as any blowing agents or nucleating agents. Due to the greater densities as well as the characteristics inherent in polyetherimide articles, the resulting foam materials are suitable for a much broader range of applications. The continuous process provides a more cost effective product while also avoiding the use of Freon and/or other agents potentially harmful to the environment. | 06-25-2009 |
20120065283 | REINFORCED THERMOPLASTIC ARTICLES, COMPOSITIONS FOR THE MANUFACTURE OF THE ARTICLES, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM - A composition for the manufacture of a porous, compressible article, the composition comprising a combination of: a plurality of reinforcing fibers; a plurality of polyimide fibers; and a plurality of polymeric binder fibers; wherein the polymeric binder fibers have a melting point lower than the polyimide fibers; methods for forming the porous, compressible article; and articles containing the porous, compressible article. An article comprising a thermoformed dual matrix composite is also disclosed, wherein the composite exhibits a time to peak release, as measured by FAR 25.853 (OSU test), a 2 minute total heat release, as measured by FAR 25.853 (OSU test), and an NBS optical smoke density of less than 200 at 4 minutes, determined in accordance with ASTM E-662 (FAR/JAR 25.853). | 03-15-2012 |
20130255899 | TRANSFORMER PAPER AND OTHER NON-CONDUCTIVE TRANSFORMER COMPONENTS - A transformer paper comprising polyetherimide fibers is disclosed, along with a method of making the transformer paper and articles. | 10-03-2013 |
20130260088 | HONEYCOMB PAPER - A consolidated fibrous mat comprises 20 to 50 weight percent of reinforcing fibers; and a continuous phase connecting the reinforcing fibers, comprising 50 to 70 weight percent of a polymer having a melt temperature at least 20° C. lower than the reinforcing fibers, and 5 to 10 weight percent of a binder having a melt temperature lower than the polymer; wherein the weight percent of each of the reinforcing fibers, the polymer, and the binder is based on the combined total weight of the reinforcing fibers, the polymer, and the binder. | 10-03-2013 |
20130260123 | ELECTRICAL INSULATION PAPER, METHODS OF MANUFACTURE, AND ARTICLES MANUFACTURED THEREFROM - Fibrous substrates containing polyetherimides and other synthetic fibers are disclosed, along with methods of preparing electrical insulation paper and articles comprising the fibrous substrates. | 10-03-2013 |
20130260124 | ELECTRICAL INSULATION PAPER, METHODS OF MANUFACTURE, AND ARTICLES MANUFACTURED THEREFROM - Fibrous substrates containing polyetherimides and other synthetic fibers are disclosed, along with methods of preparing electrical insulation paper and articles comprising the fibrous substrates. | 10-03-2013 |
20140167329 | HIGH TEMPERATURE MELT INTEGRITY BATTERY SEPARATORS VIA SPINNING - A method for preparing a high temperature melt integrity separator, the method comprising spinning a polymer by one or more of a mechanical spinning process and an electro-spinning process to produce fine fibers. | 06-19-2014 |
20140178661 | ELECTRICAL INSULATION PAPER, METHODS OF MANUFACTURE, AND ARTICLES MANUFACTURED THEREFROM - A fibrous substrate comprising a consolidated product of a fiber composition is provided comprising polyimide fibers; fibers selected from aromatic polyamide fibrids or polycarbonate fibers; aromatic polyamide fibers. A process of preparing a fibrous substrate is disclosed, comprising forming a layer from a slurry comprising a suspension solvent; and fiber composition comprising a combination of polyimide fibers; aromatic polyamide fibers; aromatic polyamide fibrids; each based on the total weight of the fibers in the fiber composition; dewatering the layer; and consolidating the layer to form the fibrous substrate; wherein a layer of polyimide fiber aromatic polyamide fibrid is applied to each surface of the fibrous substrate either before or after said consolidating step, and the substrate and polyimide layers are together subjected to a consolidating step. In another embodiment, articles comprising the above fibrous substrates are provided. | 06-26-2014 |
Patent application number | Description | Published |
20100260351 | Speakerphone Feedback Attenuation - A method is disclosed for acoustic feedback attenuation at a telecommunications terminal. A speakerphone equipped with a loudspeaker and two microphones is featured. Signals from the two microphones are subjected to a calibration stage and then to a runtime stage. The purpose of the calibration stage is to match the microphones to each other by advantageously using both magnitude and phase equalization across the frequency spectrum of the microphones. During the runtime stage, the microphones monitor the ambient sounds received from sound sources, such as the speakerphone's users and the loudspeaker itself, during a conference call. The speakerphone applies the generated set of filter coefficients to the optimized microphone's signals. By combining the signal from the reference microphone with the filtered signal from the optimized microphone, the speakerphone is able to attenuate the sounds from the loudspeaker that would otherwise be transmitted back to other conference call participants. | 10-14-2010 |
20100272249 | Spatial Presentation of Audio at a Telecommunications Terminal - The present invention utilizes pseudo-stereo for the communication of secondary information to the user of a telecommunications terminal, such as a speakerphone. In particular, the terminal utilizes a method for the presentation of secondary information to the user of the terminal in a teleconference call by adjusting the spatial properties of the monaural audio received at the user's terminal. An audio communication is modified so as to appear that the communicated audio is arriving from a particular direction in relation to the user's approximate position, wherein the direction that is assigned to the audio depends on one or more characteristics of the call participant who is originating the audio. Each characteristic of a call participant on a call can comprise, while not being limited to, the customer satisfaction of the call participant, the urgency of a need of the call participant, the group membership of the call participant, or the product ownership of the call participant. | 10-28-2010 |
20100302049 | Notifying a User of a Telecommunications Terminal of Disrupted Audio - A user of a telecommunications terminal is made aware when the user's voice is disrupted by echo suppression, which notifies the user that he or she can adjust his or her speaking pattern, or move closer to the microphone in order to stop the clipping. | 12-02-2010 |
20110311064 | SYSTEM AND METHOD FOR STEREOPHONIC ACOUSTIC ECHO CANCELLATION - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for stereophonic acoustic echo cancellation. The method includes collecting, at a same time, a first audio sample of an audio source from a first omnidirectional microphone and a second audio sample of the audio source from a second omnidirectional microphone. The method includes delaying the second audio sample by a first amount of time to yield a delayed second audio sample and combining the delayed second audio sample with the first audio sample to produce a first channel, then delaying the first audio sample by a second amount of time to yield a delayed first audio sample and combining the delayed first audio sample with the second audio sample to produce a second channel. Then the method includes outputting the first channel and the second channel as a stereo audio signal of the audio source. | 12-22-2011 |
20120093338 | SYSTEM AND METHOD FOR SPATIAL NOISE SUPPRESSION BASED ON PHASE INFORMATION - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for suppressing spatial noise based on phase information. The method transforms audio signals to frequency-domain data and identifies time-frequency points that have a parameter (e.g., signal-to-noise ratio) above a threshold. Based on these points, unwanted signals can be attenuated the desired audio source can be isolated. The method can work on a microphone array that includes two microphones or more. | 04-19-2012 |
20130250779 | SYSTEM AND METHOD FOR END-TO-END RTCP - Systems, methods, and non-transitory computer-readable storage media for implementing real-time transport control protocol to obtain end-to-end session information. The system receives a real-time transport control protocol extension associated with a real-time transport control protocol packet in a communication session, wherein the real-time transport control protocol extension comprises an instruction for transmitting real-time transport control protocol data based on a triggering event, and wherein the real-time transport control protocol extension is configured to propagate along the communication session. Next, in response to the triggering event, the system transmits the real-time transport control protocol data to an address defined by the instruction as a destination address for receiving information associated with the triggering event. | 09-26-2013 |
20130250786 | SYSTEM AND METHOD FOR END-TO-END CALL QUALITY INDICATION - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for generating an end-to-end quality indication associated with a communication session. Based on a real-time transport control protocol message, the system identifies a media path associated with a communication session. Next, the system determines a respective media leg quality for a plurality of media legs in the media path. Based on the respective media leg quality, the system then determines a media path quality. The system can also generate a media quality indication based on the media path quality, and display the media quality indication. | 09-26-2013 |
20140169534 | METHOD, APPARATUS, AND SYSTEM FOR PROVIDING REAL-TIME PSAP CALL ANALYSIS - Methods, apparatus, and systems are provided such that a Public Safety Answering Point (PSAP) may utilize a new model to handle Open Line emergency calls, including audio optimization, automation, analysis, and presentation. Embodiments of the present disclosure assist with the difficult task of identifying background noise while trying to listen and talk to a caller, and give the best possible audio from the caller to the emergency call-taker or dispatcher. More particularly, an audio stream is split into at least two instances, with a first instance being optimized for speech intelligibility and provided to a call-taker or dispatcher and a second instance being provided for background sound analysis. Accordingly, the new PSAP Open Line model may allow for significantly more efficient emergency assessment, location, and management of resources. | 06-19-2014 |
20140270144 | PUBLIC SAFETY ANSWERING POINT LANGUAGE DETECTION - A Public Safety Answering Point (PSAP) is disclosed. The PSAP is configured to enable the detection of language preferences, capabilities, or inabilities and, based on such detection, assist the PSAP agent in assisting the PSAP caller. The PSAP may additionally or alternatively utilize the detection of language information to assist in the decision to route or re-route the PSAP caller to appropriate PSAP resources. | 09-18-2014 |
20150304288 | SYSTEM AND METHOD FOR END-TO-END ENCRYPTION AND SECURITY INDICATION AT AN ENDPOINT - Disclosed herein are systems, methods, and non-transitory computer-readable storage media for implementing real-time transport control protocol to obtain an end-to-end encryption and security status of a communication session. The system collects real-time transport control protocol messages associated with a communication session, wherein the real-time transport control protocol messages are generated by devices in the communication session, and wherein the real-time transport control protocol messages include security information associated with the communication session. Then, based on the real-time transport control protocol messages, the system determines a security status associated with the communication session. The system can also generate an indication of the security status associated with the communication session. Further, the system can generate an indication of the security status of a communication session on a per participant basis. | 10-22-2015 |