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Cheng Qian

Cheng Qian, Pamplona-Navarra ES

Patent application numberDescriptionPublished
20110081718SYSTEM FOR PACKAGING HIGH-CAPACITY ADENOVIRUSES - The invention relates to a nuew system for production and packaging of high capacity adenoviral vectors which does not require the use of helper virues and which is characterized in that it integrates the adenoviral genes needed for the control, replication and packaging of the viral particuiles in the genome of a host cell, which results in the improvement of the long term stability of the production system.04-07-2011

Cheng Qian, Miami, FL US

Patent application numberDescriptionPublished
20100228491Cross-Instrument Method and System for Cell Population Discrimination - The present invention provides methods and systems to combine the capabilities of a hematology analyzer with those of a flow cytometer to yield a far more powerful analytical system than either device alone. In one embodiment, a method of analyzing a cell sample includes receiving a first data generated by an analysis of a first aliquot of the sample on a first particle analyzer having a fluorescence measurement device such as a flow cytometer, detecting at least one unresolved cell population in the first data, and accessing a second data stored on a storage device wherein the second data was previously generated by interrogating a second aliquot of the sample using at least one of a cell volume measurement device and a cell conductivity measurement device in a second particle analyzer such as a hematology analyzer. The unresolved cell population in the first data is then resolved using the second data. Corresponding system embodiments are also disclosed.09-09-2010

Patent applications by Cheng Qian, Miami, FL US

Cheng Qian, San Jose, CA US

Patent application numberDescriptionPublished
20100031123UNIFIED MEMORY ARCHITECTURE FOR RECORDING APPLICATIONS - An apparatus comprising a first circuit, a second circuit and a disc. The first circuit may be configured to (i) extract video data as data blocks from an input signal and (ii) perform error correction on the data blocks with a delta syndrome based iterative Reed-Solomon decoding. The second circuit may be configured (i) to decode corrected video data into a video format in a first state, (ii) encode the corrected video data in a second state and (iii) share an external memory between the first circuit and the second circuit. The disc may be configured to store encoded video data in the second state.02-04-2010

Patent applications by Cheng Qian, San Jose, CA US

Cheng Qian, Shenzhen City CN

Patent application numberDescriptionPublished
20090313494VOLTAGE DETECTION DEVICE - An voltage detection device includes a comparator circuit comprising a first input terminal connected to a system power supply, a second input terminal connected to a standby power supply, an output terminal capable of outputting a control voltage according to comparison result; an indicator circuit; and a switch circuit connected between the standby power supply and the indicator circuit, comprising a control terminal to receive the control voltage from the comparator circuit thereby to control the standby power supply supplied to the indicator circuit or not; a power state terminal of the computer connected to a node between the standby power supply and the indicator circuit, wherein the power state terminal is at a low level when the computer is turned off. The voltage detection device can ensure that all the power supplies provide power to the computer components normally.12-17-2009

Cheng Qian, Shenzhen CN

Patent application numberDescriptionPublished
20090141411VOLTAGE REGULATOR MODULE CONTROL CIRCUIT - An exemplary voltage regulator module (VRM) control circuit includes a VRM providing a plurality of phases, each of the phases connected to a control terminal of a corresponding electric switch; a comparator comprising a non-inverting terminal connected to a first power source and grounded via the electric switches respectively, an inverting terminal connected to a reference voltage, and an output terminal; and a control switch connected between an enable terminal of the VRM and ground, the control switch comprising a control terminal connected to the output terminal of the comparator, wherein, if one of the phases of the VRM is lost, the corresponding electric switch is turned off, and a voltage of the non-inverting terminal of the comparator is higher than the reference voltage, the comparator outputs a control signal to the control switch for turning on the control switch, thus turning off the VRM.06-04-2009
20090161472MEMORY VOLTAGE CONTROL CIRCUIT - A memory voltage control circuit includes two slots, a control circuit, a voltage conversion circuit, and a switch circuit. The two slots are able to efficiently process different memory types. The control circuit receives memory identification signals from the two slots. The control circuit administers the output voltage of the voltage conversion circuit according to the memory identification signals. The memory identification signals determine whether the switch circuit is to be turned on or off. This will control whether the output voltage of the voltage conversion circuit will go to the first or the second slot.06-25-2009
20090175602CIRCUIT FOR CONTROLLING ROTATION SPEED OF COMPUTER FAN - A circuit for controlling rotation speed of a computer fan includes a fan header for connecting to a 4-pin fan or a 3-pin fan, a jumper device, an amplifier, and a controller. The jumper device has a first pin for receiving a controlling signal, and connected to a first power source, a second pin connected to the fan header, and a third pin connected to the first power source. The amplifier has an input terminal connected to the third pin of the jumper device via an integrator. The controller has a first terminal connected to an output terminal of the amplifier, a second terminal connected to a second power source, and a third terminal connected to the fan header and connected to a positive input terminal of the amplifier via a resistor. The first pin of the jumper device is selectively connected to the second or third pin.07-09-2009

Cheng Qian, Durham, NC US

Patent application numberDescriptionPublished
20080260617FUNCTIONALIZED FEW-WALLED CARBON NANOTUBES (FWNTs) AND METHODS OF MAKING AND USING THE SAME - Few-walled carbon nanotubes (FWNTs) can be synthesized in a simple chemical vapor deposition (CVD) system using a mixture of methanol and ethanol as the carbon source. In preferred embodiments, the present invention uses an ethanol/methanol mixture as the carbon source so that few walled nanotubes (FWNTs) with high purity can be prepared following a simplified purification process. Under the growth conditions of the present invention, ethanol is believed to act as the carbon source while methanol is believed to act as a “carbonaceous impurity remover” to remove the impurities deposited on a support (e.g., MgO) and thereby hinder the formation of such impurities.10-23-2008