Patent application number | Description | Published |
20100019109 | Reverse Foldable Camera Tripods - A tripod comprises a main body with three radially extending arms, and a leg connected to each arm so as to pivot through about 180 degrees with respect to the main body, so as to pivot between a first position wherein the leg is generally parallel to and below the main body, and a second position wherein the leg is generally parallel to and above the main body. Each arm includes at least one projection for releasably fixing the connected leg at a third position between the first and second positions. In one aspect, each leg includes an angle lock for engaging the projection on the arm, the angle lock mounted to a top end of the leg and configured to move in a radial path, relative to the main body, into and out of engagement with the projection. In another aspect, each leg includes an angle lock for engaging the projection on the arm, the angle lock mounted to a top end of the leg and configured to move in an axial path, relative to the leg, into and out of engagement with the projection. In yet another aspect, each leg includes an angle lock for engaging the projection on the arm, the angle lock pivotally mounted to a top end of the leg and configured to pivot into and out of engagement with the projection. | 01-28-2010 |
20110006170 | MULTI-AXIS PHOTOGRAPHIC TRIPOD HEADS - A tripod head comprises a tripod mounting component, an angle adjusting component, and a camera mounting component. The angle adjusting component is configured to allow adjustment and locking of the angle between the tripod mounting component and the camera mounting component about first and second perpendicular axes. The camera mounting component is rotatably mounted to the angle adjusting component to allow the camera mounting component to be rotated and locked with respect to the angle adjusting component about a third axis. | 01-13-2011 |
20110108685 | TRIPOD HEAD WITH FOLDING HANDLE - A tripod head comprises a mount and an angle adjustment mechanism for adjusting and locking the angle of the mount with respect to a tripod. The mechanism comprises an elongated handle. The handle is adapted to rotate around its longitudinal axis to lock the angle of the mechanism when rotated in one direction and unlock the angle of the mechanism when rotated in the other direction. The handle comprises a proximal portion and a distal portion. The distal portion is attached at a pivot point whereby the distal portion can pivot between an operative position in line with the proximal portion and a storage position generally perpendicular to the proximal portion. The handle further comprises a locking device for releasably locking the distal portion in the operative position. | 05-12-2011 |
Patent application number | Description | Published |
20080292789 | ONE-DIMENSIONAL METAL AND METAL OXIDE NANOSTRUCTURES - Metal powder (such as tin, titanium, or tungsten powder) is heated in a flowing stream of an inert gas, such as argon, containing a small abundance of oxygen at a temperature to produce metal vapor. The metal reacts with the oxygen to form and deposit one-dimensional nanostructures of oxygen-containing metal on the metal powder (in the case of Ti and W) or on a suitable nearby substrate in the case of the lower melting tin. The metal oxides are not necessarily stoichiometric compounds. Water may be introduced into the flowing inert gas to increase or control the oxygen content. Sulfur vapor or a carbon source may be introduced to dope the nanostructures with sulfur or carbon. Reaction conditions may be modified to vary the shapes of the one-dimensional nanostructures. | 11-27-2008 |
20100316873 | ONE-DIMENSIONAL METAL NANOSTRUCTURES - Tin powder is heated in a flowing stream of an inert gas, such as argon, containing a small concentration of carbon-containing gas, at a temperature to produce metal vapor. The tin deposits as liquid on a substrate, and reacts with the carbon-containing gas to form carbon nanotubes in the liquid tin. Upon cooling and solidification, a composite of tin nanowires bearing coatings of carbon nanotubes is formed. | 12-16-2010 |
20120308818 | ONE-DIMENSIONAL METAL NANOSTRUCTURES - Tin powder is heated in a flowing stream of an inert gas, such as argon, containing a small concentration of carbon-containing gas, at a temperature to produce metal vapor. The tin deposits as liquid on a substrate, and reacts with the carbon-containing gas to form carbon nanotubes in the liquid tin. Upon cooling and solidification, a composite of tin nanowires bearing coatings of carbon nanotubes is formed. | 12-06-2012 |
Patent application number | Description | Published |
20090212823 | Low Jitter CMOS to CML Converter - The present invention provides a low jitter CMOS to CML converter, including: a differential circuit including differential pair transistors, a pair of loads and a biased transistor, each differential transistor of the differential pair transistors having an input terminal, an output terminal and a connection terminal. With the current compensation device, an additional current path may be provided for the current of the biased transistor which is used as a constant current source when the differential transistors are turned off, so that the peak tail current in the biased transistor current may be eliminated. Thus, the problem caused by the tail current that the common mode output voltages of the converter is unstable and has a high jitter may be solved. | 08-27-2009 |
20110207499 | ENHANCED UPLINK POWER CONTROL BASED ON INTERFERENCE MANAGEMENT AND TRANSMISSION QUALITY CONTROL - The present invention provides an enhanced uplink power control mechanism based on interference management and transmission quality control: the uplink power is controlled on the basis of simultaneously considering both the interference of neighboring cells and the system performance of the cell, that is, the transmit power of the mobile station is controlled. The mobile station controls its transmit power according to interference over thermal of the neighboring cells or sectors of the cell or sector which the mobile station is located in, transmission loss compensation and quality of signal received from the mobile station by the base station which serves the mobile station. The uplink power is controlled on the basis of simultaneously considering both the interference of neighboring cells and the system performance of the cell via using the method and device of the present invention, and thus the system performance is improved effectively. | 08-25-2011 |
20120289275 | DEVICE AND METHOD OF CHANNEL INFORMATION FEEDBACK FOR MULTI-CELL MIMO - A mobile terminal is provided in the present invention, comprising: a channel state information feedback calculating unit configured to calculate a channel state information feedback between the mobile terminal and a serving cell of the mobile terminal and those between the mobile terminal and all cooperating cells; a channel quality information feedback calculating unit configured to calculate a channel quality information feedback for the serving cell of the mobile terminal; and a transmission unit configured to transmit the channel state information feedbacks and the channel quality information feedback to the serving cell. The present invention greatly improves the performance of a LTE-A system and greatly reduces feedback overhead. The present invention is a scalable feedback solution and may be flexibly applied to various coordinated multipoint transmission scenarios. | 11-15-2012 |
20120307672 | METHOD AND USER TERMINAL FOR MULTI-SITE MULTI-USER JOINT TRANSMISSION - The present invention proposes a method for multi-site multi-user joint transmission, the method comprising: measuring, by a user terminal, a downlink channel originated from each base station; according to the measurement for the downlink channel, quantizing and obtaining, by the user terminal, per-site channel information for the each base station and additional inter-site channel information, the additional inter-site channel information being used for calculating joint channel information of multiple base stations; and feeding back, by the user terminal, the per-site channel information for the each base station and the additional inter-site channel information so that the base station performs scheduling to execute the multi-site multi-user joint transmission. | 12-06-2012 |
20130279619 | PRECODING METHOD AND PRECODER FOR CROSS-POLARIZED ANTENNA ARRAY - The present invention provides a precoding method for a cross-polarized antenna array, the cross-polarized antenna array comprising a first group of coplanar polarized antennas and a second group of coplanar polarized antennas, the method comprising the following steps: generating,for at least one layer of data stream,a feedback codebook comprising a plurality of code-words; receiving a selection of the codeword in the feedback codebook; determining a corresponding codeword from the feedback codebook according to the received selection; generating a precoding matrix based on the determined codeword to precode the at least one layer of data stream; wherein each codeword in the feedback codebook comprises a first coefficient portion corresponding to a first group of coplanar polarized antennas and a second coefficient portion corresponding to the second group of coplanar polarized antennas, and there is a complex scaling relation between the coefficients in the first coefficient portion and the second coefficient portion corresponding to the same layer of data stream. Correspondingly, the present invention further provides a precoder for a cross-polarized antenna array. | 10-24-2013 |
20140211684 | METHOD AND SYSTEM FOR CHANNEL FEEDBACK IN WIRELESS COMMUNICATIONS - Embodiments of the present invention generally relate to a method and system of channel feedback in wireless communications. Specifically, according to embodiments of the present invention, there is provided a two-stage Co MP feedback mechanism, such that different types of channel feedback are transmitted in each stage. Specifically, during the first stage, information regarding long-term features and/or wideband features of a channel is fed back; while during the second stage, information regarding short-term features and/or narrow features of channel is fed back. The first stage and the second stage may be periodically repeated. The information fed back during the first and second stages are used to calculate feedback information characterizing a joint-channel feature. In this way, overheads associated with channel feedback may be effectively reduced. Corresponding methods and apparatuses are also disclosed. | 07-31-2014 |
20150358066 | METHOD OF DETERMINING TWO-STAGE CODEBOOK SET APPLICABLE TO 4TX CROSS-POLARIZED ANTENNA CONFIGURATION - The invention provides a solution of designing a two-stage codebook set applicable to 4Tx cross-polarized antenna configuration and a method of determining a codebook in a multi-input multi-output communication system based upon the designed two-stage codebook set applicable to 4Tx cross-polarized antenna configuration. The first stage codebook relates long-term/wideband channel information and is based on DFT vectors, whereas the second stage codebook relates to short-term/narrowband channel information and is base on selecting columns of the first stage codebook and providing inter-polarization phase information. | 12-10-2015 |
Patent application number | Description | Published |
20080290505 | MOLD DESIGN AND SEMICONDUCTOR PACKAGE - A chip package includes a carrier having a first and a second major surface. The first major surface includes an active region surrounded by an inactive region. The chip package includes contact pads in the active region for mating with chip contacts of a chip. A support structure is disposed on the inactive region of the first major surface. The support structure forms a dam that surrounds the active region. When a chip or chip stack is mounted in the active region, spacing exists between the dam and the chip or chip stack. The spacing creates convention paths for heat dissipation. | 11-27-2008 |
20080303031 | VENTED DIE AND PACKAGE - A die that includes a substrate having a first and second major surface is disclosed. The die has at least one unfilled through via passing through the major surfaces of the substrate. The unfilled through via serves as a vent to release pressure generated during assembly. | 12-11-2008 |
20080303163 | THROUGH SILICON VIA DIES AND PACKAGES - A method for preparing a die for packaging is disclosed. A die having first and second major surfaces is provided. Vias and a mask layer are formed on the first major surface of the die. The mask includes mask openings that expose the vias. The mask openings are filled with a conductive material. The method includes reflowing to at least partially fill the vias and contact openings to form via contacts in the vias and surface contacts in the mask openings. | 12-11-2008 |
20110315779 | SUBSCRIBER IDENTITY MODULE (SIM) CARD - A SIM card is presented. The SIM card includes a support carrier having a first and a second major surface. The support carrier includes a cavity which extends partially into the carrier from the first major surface. The SIM card further includes a chip package disposed within the cavity. The support carrier is sufficiently flexible to bend when the SIM card is being inserted into or removed from a SIM card holder. | 12-29-2011 |
20120018869 | MOLD DESIGN AND SEMICONDUCTOR PACKAGE - A chip package includes a carrier having a first and a second major surface. The first major surface includes an active region surrounded by an inactive region. The chip package includes contact pads in the active region for mating with chip contacts of a chip. A support structure is disposed on the inactive region of the first major surface. The support structure forms a dam that surrounds the active region. When a chip or chip stack is mounted in the active region, spacing exists between the dam and the chip or chip stack. The spacing creates convention paths for heat dissipation. | 01-26-2012 |
20120149150 | VENTED DIE AND PACKAGE - A die that includes a substrate having a first and second major surface is disclosed. The die has at least one unfilled through via passing through the major surfaces of the substrate. The unfilled through via serves as a vent to release pressure generated during assembly. | 06-14-2012 |
20140045301 | THROUGH SILICON VIA DIES AND PACKAGES - A method for preparing a die for packaging is disclosed. A die having first and second major surfaces is provided. Vias and a mask layer are formed on the first major surface of the die. The mask includes mask openings that expose the vias. The mask openings are filled with a conductive material. The method includes reflowing to at least partially fill the vias and contact openings to form via contacts in the vias and surface contacts in the mask openings. | 02-13-2014 |
Patent application number | Description | Published |
20110318010 | DISPERSION SLOPE COMPENSATION METHOD AND APPARATUS - Embodiments of the present invention disclose a dispersion slope compensation method and apparatus, which relates to the field of communication. The method includes: performing dispersion slope compensation on a main optical channel; and dividing the main optical channel into a preset number of sub-bands, and performing the dispersion slope compensation on each sub-band. The apparatus includes: a main optical channel compensation module, a band-division module and a compensation module. The method and apparatus have the following beneficial effects. The dispersion slope compensation is performed on the main optical channel, and then band division is performed on the main optical channel after the compensation, and the dispersion slope compensation is performed on each sub-band. The configuration of the method is simple, the number of the sub-bands is few, and the cost is dramatically reduced as compared with the dispersion slope compensation method in the prior art. | 12-29-2011 |
20120166391 | Method and System for Data Synchronization in Content Delivery Network - The invention provides discloses a method for data synchronization in a content delivery network. The method includes: a data synchronization client requesting a data synchronization processing manager for obtaining a belonged data synchronization processing agent, establishing a heartbeat connection with the belonged synchronization processing agent to acquire operation status of the belonged data synchronization processing agent; and the data synchronization processing manager scanning a management side database, and if a synchronization task needing to be informed to the data synchronization client is scanned in the management side database, the data synchronization processing manager generating the synchronization task for the corresponding synchronization processing agent in an ability side database. The present invention also provides a system for data synchronization in a content delivery network, a data synchronization processing agent and a data synchronization processing manager. | 06-28-2012 |
20120166865 | Method, Device for Running Internet Protocol Television Service System, and Internet Protocol Television Service System - The present invention discloses a method, apparatus and system for operating an internet protocol television service system. The present invention relates to communication field, and solves the problem of poor quality of service caused by using a cold backup electronic programmer guide (EPG) server or transferring a user to other EPG server. The method includes: a backup electronic programmer guide (EPG) server receiving an obtaining instruction message sent by a service control manager, wherein the obtaining instruction message instructs the backup EPG server to obtain service information of a failed present network EPG server; the backup EPG server obtaining the service information of the failed present network EPG server according to the obtaining instruction message, and sending an obtaining response message to the service control manager after finishing obtaining the service information. | 06-28-2012 |
20130121352 | METHOD AND DEVICE FOR TIME SYNCHRONIZATION - A method and a device for time synchronization are disclosed according to the embodiments of the present invention. The method includes: selecting, by a slave device, a port of a single-fiber bi-directional line as a synchronization port of a 1588 clock protocol; specifying a work mode of the synchronization port; exchanging a 1588 clock synchronization packet with a master device through the synchronization port according to the work mode; acquiring transmission time information and restore a system clock according to the 1588 clock synchronization packet; and adjusting the system clock according to the work mode and the transmission time information. The device includes: a line processing module, a clock recovery module and a clock adjustment module. Through the method and the device, zero-error time synchronization is implemented; and in the case of unfixed path delay, the time synchronization can also be implemented. | 05-16-2013 |
Patent application number | Description | Published |
20130136200 | METHOD OF TRANSMITTING FEEDBACK INFORMATION IN A MIMO COMMUNICATION SYSTEM AND DEVICE THEREOF - The present invention provides a method of providing feedback information in a user equipment of a communication system based on MIMO, comprising: determining a first latest measured long-term covariance matrix according to a downlink channel matrix model; transmitting the quantization of a first latest estimated long-term covariance matrix corresponding to the first latest measured long-term covariance matrix to the base station; determining a second latest measured long-term covariance matrix according to a downlink channel matrix model; determining the variation information of a second latest estimated long-term covariance matrix with respect to an estimated long-term covariance matrix of the last-time reset point; and transmitting the quantization of the variation information to the base station. With such a solution, overhead during the feedback of long-term covariance matrix is greatly reduced in MIMO scenario. | 05-30-2013 |
20130142071 | METHOD AND APPARATUS FOR DECREASING MULTI-CELL FEEDBACK OVERHEAD - Method and apparatus for decreasing multi-cell feedback overhead is provided in the present invention. Wherein a user equipment utilizes a first period to feedback short-term channel direction information of a serving base station, utilizes a second period to feedback long-term channel direction information of neighboring base stations, further, the user equipment utilizes a third period to feedback long-term relative amplitude information, utilizes a fourth period to feedback short-term relative phase information, wherein the first period is shorter than the second period, and the third period is longer than the fourth period. | 06-06-2013 |
20130170578 | METHOD FOR DETERMINING PRECODING MATRIX AND CORRESPONDING COMMUNICATION METHODS AND DEVICES - A method for determining precoding matrix for the sub-band precoding in a transmitter, wherein the transmitter has M transmitting antennas, and the method comprises: a. determining an optimized first matrix W | 07-04-2013 |
20130188745 | METHOD AND APPARATUS FOR SUB-SAMPLING OF A CODEBOOK IN LTE-A SYSTEM - The embodiments of the present invention disclose a method and an apparatus for sub-sampling of a codebook in the LTE-A system where a precoding matrix W is a product of two matrices W | 07-25-2013 |
20130195064 | METHOD AND APPARATUS FOR IMPROVING ACCURACY OF TRANSMITTING CSI VIA PUCCH - The present invention discloses a method and apparatus for improving the accuracy of transmitting CSI via PUCCH. The method for improving the accuracy of transmission of channel status information via the physical uplink control channel comprises reducing the number of bits of other channel information transmitted via the physical uplink control channel under the condition that the payload of the physical uplink control channel remains unchanged, and utilizing the thus-saved bits to transmit the channel state information to reduce the degree of sub-sampling the channel state information and thereby improve the accuracy of transmission of the channel status information via the physical uplink control channel. According to the present invention, system performance loss can be reduced. | 08-01-2013 |
Patent application number | Description | Published |
20130214045 | LOW-ALTITUDE LOW-SPEED SMALL TARGET INTERCEPTING METHOD - Systems and methods allow for intercepting a small, low-altitude and low-velocity target. A system includes a detecting apparatus, a directing control apparatus, an aiming control apparatus, a launch control apparatus, a launching device, and an intercepting device. A method includes: searching and tracking a target by the detecting apparatus in a networking mode, or by the aiming control apparatus in a single-soldier mode; sending target information to the launch control apparatus; performing a trajectory calculation by the launch control apparatus; and launching the intercepting device by the launching device to intercept the target. A low-cost system with a short response time can thus be realized. The target falls with the net at a low velocity under a parachute, and this is desirable in a city environment. | 08-22-2013 |
20130340600 | COMBUSTION GAS PISTON TYPE MOVABLE GUIDING TUBE NETTING DEVICE - A combustion gas piston type movable guiding tube netting device includes a capture net ( | 12-26-2013 |
20140245925 | MIX COMPOSITION DETERMINATION METHOD OF COARSE GRADED HIGH MODULUS ASPHALT CONCRETE WITH SKELETON EMBEDDED STRUCTURE - The invention relates to ‘mix composition determination method of coarse graded high modulus asphalt concrete with skeleton embedded structure’, which belongs to the road engineering design field. The invention use low labeled hard asphalt AH-30# with penetration degree no greater than 30 (0.1 mm); the nominal maximum aggregate size no smaller than 26.5 mm; building mineral aggregate gradation of the mix by the idea of course aggregate gap gradation; using gradation design method of asphalt mixture based on closest compact condition to select the optimal oil-stone ratio. The concrete invented is technology reliable and economy reasonable which has good anti-deformation capacity and carrying capacity, and the high temperature stability is obviously improved, at the same time the mechanics performance of the asphalt mixture is improved, the strength of this new asphalt mixture is more than 50% higher than that of common asphalt mixture, its dynamic complex modulus is 30% higher than that of similar foreign products, which has very excellent road performance. | 09-04-2014 |
20150085302 | METHOD FOR MEASURING DISPLACEMENT OF LARGE-RANGE MOVING PLATFORM - A method for measuring displacement of a large-range moving platform, comprising: arranging multiple beams of first measuring light parallel to one another and generated by an optical path distribution device and a position sensitive detector array in a certain manner, to ensure that at least one beam of first measuring light is detected by the position sensitive detector array when a moving platform is at any position of a moving area; a detection head array capable of determining whether a light beam is shaded being used for auxiliary measurement of a position of the moving platform; and determining a position of the moving platform that corresponds to the first measuring light measured by the position sensitive detector array, to calculate displacement of the moving platform. The method effectively enlarges a measurement range of the position sensitive detector array, and implements measurement of long range displacement of the moving platform. | 03-26-2015 |
20150091779 | INFORMATION PROCESSING METHODS AND ELECTRONIC DEVICES - The disclosure discloses an information processing method and an electronic device. The information processing method is applied in a first electronic device capable of communicating with a second electronic device, and includes: acquiring a first position parameter of the first electronic device and a second position parameter of the second electronic device; judging, based on the first position parameter and the second position parameter, whether a relative position relationship between the first electronic device and the second electronic device meets a preset condition, to acquire a first judgment result; when the first judgment result is YES, establishing, by the first electronic device, a communication connection with the second electronic device; acquiring data of a first part of a first object needed to be displayed on a first display unit of the first electronic device; and synchronously executing a first application program corresponding to the first object in the second electronic device, and displaying the data of the first part on the first display unit while displaying data of a second part in the first object different from the data of the first part on a second display unit of the second electronic device. | 04-02-2015 |
20150091917 | INFORMATION PROCESSING METHODS AND ELECTRONIC DEVICES - The present disclosure discloses an information processing method and an electronic device, solving the technical problem that it needs to write additional special codes to enable executing an application program in two or more electronic devices simultaneously and enable displaying output content collectively on two or more display units. The method includes: acquiring data of a first part of a first object needed to be displayed on the first display unit, wherein, data of a second part in the first object different from the data of the first part is determined to be displayed on a second display unit; synchronizing, by the first electronic device, with the second electronic device; and displaying the data of the first part on the first display unit by the first electronic device synchronously executing a first application program corresponding to the first object while displaying the data of the second part on the second display unit by the second electronic device executing the first application program. | 04-02-2015 |
20150201298 | METHOD FOR POSITIONING IP LOCATION AND SERVER - A method for positioning an IP location and a server are provided. The method comprises: obtaining location data of mobile terminals used by a plurality of users in a preset period to generate a first geographic location data set; pre-processing the first geographic location data set to obtain a second geographic location data set; obtaining a first selected location and a second selected location of each user according to the second geographic location data set; obtaining IP address data corresponding to fixed terminals used by the plurality of users to generate an IP address data set; pre-processing the IP address data set to obtain a plurality of IP sections; obtaining a plurality of first selected locations and second selected locations corresponding to the users of each IP section; and clustering the plurality of first selected locations and second selected locations to obtain the IP location of the IP section. The present disclosure achieves an IP positioning precision on a street level and has advantageous of simple arrangement and fast response speed. | 07-16-2015 |
20150208344 | METHOD FOR TRANSMITTING DATA USING TAIL TIME IN CELLULAR NETWORK - A method for transmitting data using a tail time in a cellular network comprising steps of: receiving a data transmission request from a mobile terminal, and inserting the data transmission request into a real-time request queue or a delay-tolerant request queue according to a type of the data transmission request; determining a tail time according to a state of a RRC state machine and a throughput of the mobile terminal; and obtaining the data transmission request to be transmitted from the real-time request queue or the delay-tolerant request queue, and transmitting the real-time data transmission request directly as there are real-time data transmission requests in the real-time request queue, and transmitting the delay-tolerant data transmission request using the tail time when the tail time is available for transmitting data or transmitting the delay-tolerant data transmission request directly when a deadline of the delay-tolerant data transmission request is approached. | 07-23-2015 |
20150231429 | UNIDIRECTIONAL, SPRINKLER-TYPE, ANTIPERSONNEL-FRAGMENTATION-FREE FIRE-EXTINGUISHING BOMB - The invention discloses a unidirectional spray type fire extinguishing bomb without high explosive fragmentation, includes a housing, a fuse, an igniter, an fire extinguishing agent and a main charge, and further includes a tail braking device, combustor, a plate closure, a piston and a diffuser. The housing, the tail braking device and the piston are made of light metal materials; the housing is cylindrical; the tail braking device is arranged at the bottom of the housing and is fixed with the housing through a screw nail; and the fuse is arranged on the diffuser and is fixed through a screw nail. During working process, when the fuse detects the fire extinguishing bomb to be 5-10 meters far away from a combustion source, the igniter ignites the main charge, the piston is pushed under high pressure to move in the housing, and the fire extinguishing agent is sprayed out from spraying holes to the combustion source for fire extinguishing. The present invention has simple structure, and has no lethality when the fire extinguishing agent is sprayed. | 08-20-2015 |
20150326150 | MAGLEV WORKPIECE TABLE WITH SIX DEGREES OF FREEDOM - A maglev working table with six degrees of freedom comprises a pedestal ( | 11-12-2015 |
20150369331 | NEGATIVE STIFFNESS SYSTEM FOR GRAVITY COMPENSATION OF MICROPOSITIONER - A negative stiffness system for gravity compensation of a micropositioner of wafer table in lithography machine, characterized in that, the negative stiffness system includes at least three sets of quasi-zero stiffness units, each of the sets of quasi-zero stiffness units comprises a pair of negative stiffness springs and a positive stiffness spring, the positive stiffness spring is vertically positioned, the pair of negative stiffness springs are obliquely and symmetrically positioned at two sides of the positive stiffness spring, upper ends | 12-24-2015 |
Patent application number | Description | Published |
20150352239 | STERILIZABLE ASSEMBLED BRACKET FOR ASEPTIC TECHNIQUE EXPERIMENTS - An assembled sterilization rack for sterile experiment relates to supporting devices used in experiment involving culture of microorganisms and/or cells. The rack includes a lateral frame, retaining wires, connectors, a base frame, heat resistant rods, connecting rings, a temperature-displaying control unit, and N temperature sensors. The lateral frame and the base frame are connected through the connectors. The lateral frame and the base frame have their surfaces facing each other provided with a plurality of retaining wires. The rods have two ends mounted on the symmetrically arranged retaining wires, respectively. The base frame has its upper surface provided with a plurality of connecting rings. The rods have the two ends received in the symmetrically arranged connecting rings, respectively. The temperature sensors are connected with the temperature-displaying control unit. In cell culture experiment, this invention can be applied to support elements used for vertical culture of cells in rectangular culture dishes. | 12-10-2015 |
20150361389 | MICROBIAL EXPERIMENT COOLING AND TEMPERATURE-SENSING MULTIPURPOSE RACK - A multi-function cooling and thermo-sensitive rack includes horizontal bars, a base, positioning holes, connectors, a lateral frame, connecting holes, a temperature-displaying prompter, and N temperature sensors. The lateral frame and the base are connected through the connectors. The lateral frame and the base have their surfaces facing each other symmetrically provided with plural connecting holes thereon. The horizontal bars have two ends thereof received in the corresponding symmetrical connecting holes. The positioning holes are distributed over the surface of the base. The N temperature sensors have output ends thereof for outputting sensing signals connected with input ends of the temperature-displaying prompter for inputting the N temperature-sensing signals. The present invention is applied to apparatuses used in microbiology experiment. | 12-17-2015 |