Alapuranen
Bertti O. Alapuranen, Indialantic, FL US
Patent application number | Description | Published |
---|---|---|
20110170467 | METHOD AND APPARATUS FOR ALLOWING SOFT HANDOFF OF A CDMA REVERSE LINK UTILIZING AN ORTHOGONAL CHANNEL STRUCTURE - Method and apparatus for base stations and subscriber units allows soft handoff of a CDMA reverse link utilizing an orthogonal channel structure. Subscriber units transmit an orthogonally coded signal over a reverse link to the base stations. A given base station provides timing control of the timing offset of the reverse link signal. Based on at least one criterion, an alignment controller determines that the given base station should hand off timing control to another base station, and a soft handoff process ensues. In response to a command or message for soft handoff of the subscriber unit from the given base station to another base station, the subscriber unit makes a coarse timing adjustment to the timing of the coded signal. The subscriber unit may make fine timing adjustments based on feedback from the base station controlling timing. Multiple base stations may provide power control feedback to the subscriber unit. | 07-14-2011 |
Marika Alapuranen, Tuusula FI
Patent application number | Description | Published |
---|---|---|
20100204080 | Novel Cellulases and Their Uses - The present invention provides novel cellulase fusion proteins, preparations of cellulase fusion proteins and compositions of cellulase fusion proteins. The present invention further provides cellulase expression vectors, host cells expressing cellulase and methods for preparing such vectors and cells. Uses of cellulases, cellulase preparations and cellulase compositions in the textile, detergent, pulp and paper industries are also provided. | 08-12-2010 |
20150037875 | PROCESS OF LYSING YEAST CELL WALLS - The invention relates to the use of a composition comprising at least one polypeptide having glucoamylase activity and optionally at least one polypeptide having β-1,3-endoglucanase activity in a process of lysing yeast cell walls as well as to a process for lysing yeast cell walls which comprises exposing said yeast cell walls to a composition comprising at least one polypeptide having glucoamylase activity and optionally at least one polypeptide having β-1,3-endoglucanase activity. | 02-05-2015 |
Marika Alapuranen, Rajamaki FI
Patent application number | Description | Published |
---|---|---|
20090042266 | TREATMENT OF CELLULOSIC MATERIAL AND ENZYMES USEFUL THERERIN - The present invention relates to the production of sugar hydrolysates from cellulosic material. The method may be used e.g. for producing fermentable sugars for the production of bioethanol from lignocellulosic material. Cellulolytic enzymes and their production by recombinant technology is described, as well as uses of the enzymes and enzyme preparations. | 02-12-2009 |
20110045544 | Treatment of Cellulosic Material and Enzymes Useful Therein - The present invention relates to the production of sugar hydrolysates from cellulosic material. The method may be used e.g. for producing fermentable sugars for the production of bioethanol from lignocellulosic material. Cellulolytic enzymes and their production by recombinant technology is described, as well as uses of the enzymes and enzyme preparations. | 02-24-2011 |
20110269213 | Fungal Endoglucanases, Their Production and Use - Novel fungal endoglucanases Cel5 and Cel2 are disclosed. The endoglucanases are conveniently produced by recombinant technology, and means for their production are described. The endoglucanases are used for treating cellulosic material, especially in textile industry, e.g. in biofinishing or biostoning. They may also be used in detergents, in animal feed and/or in pulp and paper industry, or in hydrolysis of lignocellulosic material for, e.g. bioethanol production. | 11-03-2011 |
20140099678 | Fungal Endoglucanases, Their Production and Use - Novel fungal endoglucanases Cel5 and Cel12 are disclosed. The endoglucanases are conveniently produced by recombinant technology, and means for their production are described. The endoglucanases are used for treating cellulosic material, especially in textile industry, e.g. in biofinishing or biostoning. They may also be used in detergents, in animal feed and/or in pulp and paper industry, or in hydrolysis of lignocellulosic material for, e.g. bioethanol production. | 04-10-2014 |
20140322762 | Treatment of Cellulosic Material and Enzymes Useful Therein - The present invention relates to the production of sugar hydrolysates from cellulosic material. The method may be used e.g. for producing fermentable sugars for the production of bioethanol from lignocellulosic material. Cellulolytic enzymes and their production by recombinant technology is described, as well as uses of the enzymes and enzyme preparations. | 10-30-2014 |
Marika Alapuranen, Rajamajki FI
Patent application number | Description | Published |
---|---|---|
20110269212 | Fungal Endoglucanases, Their Production and Use - Novel fungal endoglucanases with substantial performance at low temperatures are disclosed. The endoglucanases are conveniently produced by recombinant technology, and means for their production are described. The endoglucanases are used for treating cellulosic material, especially in textile industry, e.g. in biofinishing or biostoning. They may also be used in detergents, in animal feed and/or in pulp and paper industry or bioethanol production. | 11-03-2011 |
Marika Alapuranen, Rajamalo FI
Patent application number | Description | Published |
---|---|---|
20130224801 | TREATMENT OF CELLULOSIC MATERIAL AND ENZYMES USEFUL THEREIN - The present invention relates to the production of sugar hydrolysates from cellulosic material. The method may be used e.g. for producing fermentable sugars for the production of bioethanol from lignocellulosic material. Cellulolytic enzymes and their production by recombinant technology is described, as well as uses of the enzymes and enzyme preparations. | 08-29-2013 |
Pertti Alapuranen, Deltona, FL US
Patent application number | Description | Published |
---|---|---|
20120314560 | INTERFERENCE REJECTION METHOD BASED ON MULTIPLE SUB-BAND PROJECTIONS - This invention describes a cognitive radio signal processing where interference is mitigated using multiple frequency spatial projection to orthogonalize interference. The method is based on the well-known LMS solution of W=(A | 12-13-2012 |
20120314626 | CONCURRENT MULTI-BAND TRANSMITTER ARCHITECTURE - This invention describes a hardware and software architecture for concurrent dual-band or multi-band operation. More specifically this invention describes a multi-band cognitive radio network that allows terminals to efficiently use signal processing and RF resources by synchronizing the framing in multiple frequency bands. The invention is useful in TDMA systems by allowing efficient use of signal processing resources. | 12-13-2012 |
20120314823 | COGNITIVE RECEIVER ARCHITECTURE - This invention describes a cognitive radio receiver architecture where multiple specialized receiver algorithms are executed in parallel. For example, maximal ratio combiner and beam forming algorithms may be running parallel. The receiver system computes solutions using different hypotheses of channel conditions and chooses the best result, i.e. is able to decode data from one of the parallel receivers. | 12-13-2012 |
20120317455 | SYMBOL ERROR DETECTION METHOD - The invention disclosed in this application describes an error detection method that can be used to identify an OFDM symbol that is interfered with. The method is based on computing a symbol by symbol path error metric from error correction code and by comparing the statistics of each individual symbol to the mean and the variance of the metric computed from the whole data packet. | 12-13-2012 |
20120317465 | OFDM SYMBOL DIVERSITY COMBINER FOR BURST INTERFERENCE MITIGATION - The invention disclosed in this application describes a diversity combiner that operates as a maximal ratio combiner (MRC) when no interference is detected and as a selection combiner when OFDM symbol errors are detected with high probability. | 12-13-2012 |
20130021914 | MEASUREMENT COORDINATION FOR DYNAMIC SPECTRUM ACCESS MEASUREMENTS IN A TIME DIVISION DUPLEX SYSTEM - The invention disclosed in this application describes methods to coordinate spectrum measurement periods in access points or base stations in a time division duplex (TDD) system where the super frame is divided into uplink and downlink portions for use in cognitive radio systems. | 01-24-2013 |
20130089011 | COGNITIVE MOBILE TIME DIVISION DUPLEX AD-HOC NETWORK - A cognitive MANET system is disclosed that uses TDD (Time Division Duplexing) and TDMA MAC to maintain routes that allow delivery of adequate bandwidth for applications resulting in an efficient way of maintaining information on neighboring wireless terminals and access points by using a routing protocol that has a built in slot reservation algorithm. | 04-11-2013 |
20130102341 | COGNITIVE TRANSMISSION CONTROL SYSTEM - A cognitive radio transmission control system that controls the physical layer protocol based on algorithm feedback from receivers is disclosed. | 04-25-2013 |
20130114768 | INTERFERENCE MITIGATION METHOD FOR SINGLE OR MIMO RECEIVER DEVICES - A cognitive radio signal processing method suitable for single receiver devices where interference is mitigated using projection of received multi-dimensional signal space to maximize SNR by orthogonalizing interference is described. The method is based on a well-known LMS solution that is computed from received multi antenna and multicarrier signals in a novel way. This method solves the requirement of multiple RF chains in low cost handsets by introducing a protocol synchronous antenna switcher that allows, for example, a LTE handset with a single antenna to benefit from algorithms that typically require multiple receivers for the same frequency, i.e. MIMO. | 05-09-2013 |
20140126554 | METHOD TO ENABLE RAPID SCANNING BY COGNITIVE RADIOS - A cognitive radio scanning method is disclosed that enables cognitive radios to rapidly scan for neighboring channels by staggering the position of beacons across the frame relative to other channels and intelligently allocate the bandwidth across super frames such that a device has the ability to switch and scan multiple beacons both within and across multiple super frames. | 05-08-2014 |
20150045026 | SYSTEM FOR AUTOMATIC REGISTRATION OF EXPEDITIONARY TELECOMMUNICATIONS DEPLOYMENTS - A system and method for enabling voice and broadband data delivery to users in expeditionary deployments is disclosed. More specifically the system is composed of a registration server, a wireless telco network server, a wide area transport network, and an external network interconnect (like satellite or fiber location) such that when users arrive at a disaster scene where communications infrastructure has been destroyed or is unavailable, they are either handed a smart device (smartphone, laptop, tablet, etc.) or they utilize an existing smart device they brought with them (BYOD) and via the Wi-Fi interface they connect to the wide area transport network. | 02-12-2015 |
Pertti O. Alapuranen, Indialantic, FL US
Patent application number | Description | Published |
---|---|---|
20090213905 | USE OF ORTHOGONAL OR NEAR ORTHOGONAL CODES IN REVERSE LINK - An apparatus for use with a shared access communication channel is disclosed. The chipping rate of a first group of terminals is determined. Transmissions on the shared access communication channel are encoded using first pseudorandom noise (PN) code and a phase shift at the first chipping rate and an orthogonal spreading code having a chipping rate less than the first chipping rate. The apparatus may receive a feedback channel assignment and may receive an indication of a change in timing on the assigned feedback channel. | 08-27-2009 |
20120320901 | USE OF ORTHOGONAL OR NEAR ORTHOGONAL CODES IN REVERSE LINK - An apparatus and method for use with a shared access communication channel is disclosed. A wireless network device receives signals and recovers data from a first plurality of subscriber units and a second plurality of subscriber units in a time interval. Received signals from the first plurality of subscriber units are distinguishable by having unique pseudo noise (PN) sequence with respect to others of the first plurality of subscriber units. Received signals the second plurality of subscriber units are distinguishable by a unique orthogonal sequence with respect to others of the second plurality of subscriber units. Received signals are distinguished between the first and second plurality of subscriber units based on detection of an orthogonal sequence present only in the received signals from the second plurality of subscriber units. | 12-20-2012 |
20140177594 | METHOD AND APPARATUS FOR ALLOWING SOFT HANDOFF OF A CDMA REVERSE LINK UTILIZING AN ORTHOGONAL CHANNEL STRUCTURE - Method and apparatus for base stations and subscriber units allows soft handoff of a CDMA reverse link utilizing an orthogonal channel structure. Subscriber units transmit an orthogonally coded signal over a reverse link to the base stations. A given base station provides timing control of the timing offset of the reverse link signal. Based on at least one criterion, an alignment controller determines that the given base station should hand off timing control to another base station, and a soft handoff process ensues. In response to a command or message for soft handoff of the subscriber unit from the given base station to another base station, the subscriber unit makes a coarse timing adjustment to the timing of the coded signal. The subscriber unit may make fine timing adjustments based on feedback from the base station controlling timing. Multiple base stations may provide power control feedback to the subscriber unit. | 06-26-2014 |
Pertti O. Alapuranen, Lake Mary, FL US
Patent application number | Description | Published |
---|---|---|
20100246554 | DEVICE AND METHOD FOR REESTABLISHING A WIRELESS CONNECTION IN A WIRELESS NETWORK - A device and method enable reestablishing a wireless connection in a wireless network. The method includes detecting at a first wireless device that a previous wireless connection has been lost with a second wireless device that employs dynamic frequency selection (DFS) (step | 09-30-2010 |
Pertti O. Alapuranen, Deltona, FL US
Patent application number | Description | Published |
---|---|---|
20100026576 | METHOD FOR MEASURING THE TIME OF ARRIVAL OF RADIO SIGNALS - A method for measuring the time of arrival of radio signals within a network comprises receiving the received signals including at least a first pseudorandom code and a second pseudorandom code from at least one other node; identifying a frequency difference between the node and the other node using a phase difference between each of a maximum value of a cross-correlation provided by the first pseudorandom code and the second pseudorandom code; applying the frequency difference to the reception of the received signal; and calculating the time of arrival of the received signal comprising a time, measured with a local clock, when the cross-correlation has achieved the maximum value. | 02-04-2010 |
20110133996 | ANTENNA FEEDING MECHANISM - An access point is provided with an electronics enclosure which is surrounded by antenna panels. An antenna feeding mechanism operates using spatial multiplexing multiple input multiple output. Three radio frequency chains are used in a pattern that feeds a total of eight antenna elements. Multiple streams are supported by using two polarizations. Additionally a maximal ratio combiner is used to combine signals from different antennas. The hardware within the access point supports three radio frequency chains which are mapped to four antenna panels, each panel containing two elements; one for vertical and one for horizontal polarization. | 06-09-2011 |
20120045012 | METHOD AND DEVICE FOR TRANSMITTING DATA IN A WIRELESS COMMUNICATION NETWORK - A method and device for transmitting data in a wireless communication network uses both cognitive frequency diversity and antenna diversity. The method includes identifying a bandwidth of one or more potentially interfering frequency sub-bands from one or more potentially interfering signals in a radio frequency (RF) band (step | 02-23-2012 |
Pertti O. Alapuranen, Delton, FL US
Pertti Olavi Alapuranen, Indialantic, FL US
Patent application number | Description | Published |
---|---|---|
20120269177 | FAST SWITCHING OF FORWARD LINK IN WIRELESS SYSTEM - A technique for distributing channel allocation information in a demand access communication system. Multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a schedule of assignment of traffic channels to active terminals for each epoch is determined. For each terminal designated as active during the epoch, a list of active channels for such terminal unit is assigned. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel, indicating the lists of active channels for epochs of the associated traffic channel(s) that are to follow. | 10-25-2012 |
20140219258 | FAST SWITCHING OF FORWARD LINK IN WIRELESS SYSTEM - A technique for distributing channel allocation information in a demand access communication system. Multiple access codes are used that have a defined code repeat period or code epoch. For each such epoch duration, a schedule of assignment of traffic channels to active terminals for each epoch is determined. For each terminal designated as active during the epoch, a list of active channels for such terminal unit is assigned. Prior to the start of each epoch, a channel set up message is sent on one of the forward link channels, such as a paging channel, indicating the lists of active channels for epochs of the associated traffic channel(s) that are to follow. | 08-07-2014 |