| Patent application number | Description | Published |
|---|
| 20090154412 | Enhanced dynamical fast-feedback channel allocations - A method includes allocating channels in a fast-feedback channel region for a plurality of devices, and transmitting to the plurality of devices at least one bitmap defining fast-feedback uplink channel allocations for individual ones of the plurality of devices. In one embodiment a plurality of bitmaps are transmitted, the plurality of bit maps together informing individual ones of the plurality of devices of permission to use none, one or more than one particular fast-feedback channel. In this case each bitmap includes a plurality n of bit positions corresponding to n indices, where each device is identified by an associated one of the n indices, and where a bit at an index value p in a first bitmap and a bit at the same index value p in a second bitmap, when concatenated together, equal a number of fast-feedback uplink channels that are allocated to a particular device associated with the index value p. | 06-18-2009 |
| 20090219839 | TDD frame format in wireless mesh network - In a wireless mesh network a method includes, at a first node, receiving a transmission from a second node during a first sub-frame of a frame with a first transceiver operating with a first center frequency; processing the received transmission; and transmitting, after a predetermined fixed interval, with a second transceiver operating with a second center frequency the processed received transmission to a third node during a second sub-frame of a subsequent frame or of the same frame. Also disclosed are computer programs to execute the method, as well as apparatus constructed to implement the method. | 09-03-2009 |
| Patent application number | Description | Published |
|---|
| 20090039073 | METHODS AND DEVICES FOR CONTROLLING TEMPERATURE WITHOUT TEMPERATURE SENSOR - Methods and devices for controlling temperature by precise heating without the need of using a temperature sensor are provided. The device comprises a resistive heating element ( | 02-12-2009 |
| 20090123338 | BUBBLE-RESISTANT INJECTOR PORT FOR FLUIDIC DEVICES - An bubble-resistant injector port for fluidic and microfluidic devices includes an air-exhaustion feature to reduce the inclusion of bubbles or voids in injected samples, particularly in samples injected by a micropipette. The air-exhaustion feature comprises an air-exhaustion cavity in gas communication with the injector port through a narrowed channel that permits a flow of air into the cavity, while impeding a flow of injected liquid into the cavity. | 05-14-2009 |
| 20090148349 | WICKING INHIBITOR FOR FLUIDIC DEVICES - An wicking inhibitor for fluidic and microfluidic devices reduces wicking by providing a structure that interrupts the flow of a working fluid through a fluidic channel interface having corner angles greater than ninety degrees. | 06-11-2009 |
| 20100024888 | FLUIDIC FLOW MERGING APPARATUS - The present invention provides a device for handling fluids, and more particularly a merging apparatus for fluidic and microfluidic devices utilizing passive valving in conjunction with a single sensor to uniformly blend contributory working fluid streams. Symmetric and non symmetric embodiments with and without branch channels are described. The present invention also provides methods for merging liquids using the device of the invention. | 02-04-2010 |
| 20100068098 | MICROFLUIDIC DEVICES AND METHODS FOR MULTIPLE ANALYTE DETECTION - The invention is directed to microfluidic devices comprising at least two processing channels, wherein each of the processing channels comprises an inlet, an outlet, and a high-flow-resistant and hydrophilic conduit; a distributing channel, wherein the distributing channel comprises an upstream end and a downstream end, and is in fluid communication with each inlet of the processing channels via the high-flow-resistant and hydrophilic conduit; and a flushing channel, wherein the flushing channel comprises an upstream end and a downstream end, and is in fluid communication with each outlet of the processing channels. The invention also provides methods of using the microfluidic devices. | 03-18-2010 |
| 20110232366 | THERMAL MODULATION DEVICE FOR TWO DIMENSIONAL GAS CHROMATOGRAPHY - A thermal modulation device for a gas chromatography (GC) system a cold zone, a first hot zone and a second hot zone, which are located outside of a GC oven of the GC system, and a flexible capillary column. The cold zone includes a thermoelectric cooler assembly. The first hot zone is adjacent a first side of the cold zone, and has a corresponding first heat source. The second hot zone is adjacent a second side of the cold zone, and has a corresponding second heat source. The flexible capillary column includes a first segment, configured to move between the first hot zone and the cold zone in accordance with a modulation frequency, and a second segment, configured to move between the cold zone and the second hot zone in accordance with the modulation frequency. | 09-29-2011 |
| 20110239860 | APPARATUS AND METHOD FOR CONTROLLING CONSTANT MASS FLOW TO GAS CHROMATOGRAPHY COLUMN - A device for providing a constant mass flow rate to a downstream column system of a gas chromatograph includes a small full scale mass flow controller that controls carrier gas to flow at a first mass flow rate and a flow resistance element, including an inlet port connected to a sample inlet, an outlet port connected to the downstream column system, and a pressure sensing port in fluid communication with the outlet port and the mass flow controller. A sample inlet pressure controller controls the sample inlet at a first pressure, and a pressure sensor measures a second pressure of the carrier gas at the pressure sensing port. A set point of the first pressure is determined as a function of the second pressure, flow resistance of the flow resistance element, and a second mass flow rate from the inlet port to the outlet port of the flow resistance element. | 10-06-2011 |
| Patent application number | Description | Published |
|---|
| 20100197228 | CLOCK SYNCHRONIZATION METHOD FOR A SHORT RANGE WIRELESS COMMUNICATION NETWORK - A clock synchronization method includes: A) configuring a device to determine a time interval between issuance of a command by a network coordinator and the completion of the transmission of a (SFD) of a beacon frame by the network coordinator; B) upon completion of the reception of the SFD byte of the beacon frame by the device, configuring the device to generate a synchronization signal; C) in response to the synchronization signal, configuring the device to record a first clock time thereof; D) upon completion of the reception of the beacon frame by the device, configuring the device to record a second clock time thereof; E) configuring the device to calculate a synchronization clock time based on the time interval, and the first and second clock times; and F) configuring the device to adjust a clock time thereof to the synchronization clock time. | 08-05-2010 |
| 20100197259 | METHOD AND APPARATUS FOR PRODUCING SIGNAL USED FOR VERIFYING THE PERFORMANCE OF STANDARD RADIO RECEIVER - A method and an apparatus for producing a signal for verifying performances of a standard radio receiver. The apparatus includes a control module adaptable for controlling data processing, a program module for controlling and storing a digital simulation signal, a conversion module carrying out D/A conversion for the digital simulation signal, and a simulation module. When validating whether the standard radio receiver is compliant to IEEE 802.15.4-2006 standard, a verifier only needs to set up parameters defining types and signal strengths of a data frame w/o noise signals, time intervals for sending out the data frame, and a count of times of sending the data frame. Based on predefined parameters, the simulation module generates a digital simulation signal which is then processed by successive hardware devices to generate a simulated verification signal needed for validating the standard radio receiver. | 08-05-2010 |
| 20100202303 | RANGING METHOD FOR MEASURING DISTANCE BETWEEN A CENTRAL NODE AND AN EQUIPMENT NODE IN A BEACON WIRELESS PERSONAL AREA NETWORK - A ranging method is described for measuring distance between a central node and an equipment node in a beacon wireless personal area network. At the beginning stage, the central node calculates the parameters needed in the ranging operation and sends these parameters to the equipment nodes by beacon frames. Equipment nodes, in turn, send ranging frames at time slots assigned thereto according to the information received in the beacon frames. The central node calculates beacon frame flight time by recording the sending time and the arrival time of the ranging frame, and then calculates the distance between the central node and the equipment node. For nodes failing in the ranging procedure, the ranging parameters are changed according to failing reasons and the above procedure is repeated until a ranging result is received without failure. | 08-12-2010 |
| 20100202349 | METHOD FOR USING AN EXTENDING SUPER-FRAME TO TRANSFER DATA IN A SHORT DISTANCE WIRELESS PERSONAL AREA NETWORK - A method for using an extending super-frame to transfer data in a short distance wireless personal network is provided. Firstly, the super-frame segments, which are in an active period of a network coordinator are continuously copied to a whole inactive period of a current device, and an extending super-frame segments are obtained. Then, information is broadcasted to all general devices. The general device with a quality of service requirement send a service guarantee time slot bandwidth application to the network coordinator, and indicates in the application that the extending super-frame is required. When the application is granted, the super-frame segments, which are in the active period of the current device are copied to the whole inactive period, and the extending super-frame segments are obtained. Then, data is transmitted to the network coordinator with the extending super-frame segments. | 08-12-2010 |
