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250results about How to "Many connections" patented technology

A speed control method in stream media transmission system

This invention relates to a flow media transmission system speed control method, which disclose how to fully use of network wide band and how to control video technique of media video play system. The invention sets buffer occupancy rate B through receiving end and sends back B to the sending end through data channel, wherein the sending end adjusts the code rate increasing Step R and decreasing parameter alpha according to the B network package losing rate.
Owner:SHANGHAI CHUANHAI INFORMATION SCI & TECH

Three-dimensional composite friction pendulum vibration isolator based on nonlinear energy trap

The invention discloses a three-dimensional composite friction pendulum vibration isolator based on a nonlinear energy trap. Structural vibration frequency is staggered away from seismic oscillation dominant frequency and a large amount of seismic oscillation input energy is absorbed by using the characteristics of attenuation and absorption of vibration energy, absorption of vibration frequency bandwidth and the like existing in the nonlinear energy trap as well as a vertical vibration isolation disk-shaped spring, so that the multi-dimensional seismic response of a structure is reduced, and seismic hazards of building structures are prevented. The three-dimensional composite friction pendulum vibration isolator comprises a metal sliding sleeve, a disk-shaped spring, a polytetrafluoroethylene sliding joint, a nonlinear energy trap and pile caps, wherein the disk-shaped spring is arranged in the metal sliding sleeve; the polytetrafluoroethylene sliding joint is arranged on the disk-shaped spring; the polytetrafluoroethylene sliding joint is in relative sliding contact with an upper pile cap through a polytetrafluoroethylene coating; the side face of the nonlinear energy trap is connected with the disk-shaped spring through a rigid spring; the nonlinear energy trap is in rolling contact with a lower pile cap through a rolling shaft; sliding surfaces of the upper and lower pile caps are spherical surfaces. The three-dimensional composite friction pendulum vibration isolator is used for resisting possible violent earthquakes.
Owner:NORTHEAST FORESTRY UNIVERSITY +1

Multi-split air conditioning system

The invention relates to a multi-split air conditioning system. A compressor, an outdoor heat exchanger and an indoor heat exchanger form a connection loop through two four-way valves, electronic expansion valves, electromagnetic valves, wherein a terminal a of a first four-way valve is connected with the refrigerant outlet of the compressor; the terminal d of the first four-way valve is connected with the terminal w of a second four-way valve by virtue of a check valve; the terminal c of the first four-way valve is connected with the terminal y of the second four-way valve in parallel and then is connected with the refrigerant inlet of the compressor by virtue of a gas-liquid separator; the terminal w of the second four-way valve is connected with the refrigerant outlet of the compressor through a first electromagnetic valve; the terminal x of the second four-way valve is sequentially connected with the outdoor heat exchanger, a high pressure liquid storage tank, a second electromagnetic valve, a second electronic expansion valve, an indoor unit electronic expansion valve and the terminal s1 of the indoor heat exchanger; and the terminal s2 of the indoor heat exchanger is connected with the terminal b of the first four-way valve. The multi-split air conditioning system disclosed by the invention is mainly applied to a heat pump air conditioning hot water system and has an ice storage function. The multi-split air conditioning system disclosed by the invention can save more energy, and has high working efficiency and wider practical range.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD

Network structure for realizing the full-optical virtual private network between more than two passive optical networks

A fiber optic communication technology relates to more than two passive optical networks to achieve all-optical VPN network structure. It includes the following steps: a more than two transmitters and receivers, and more than one road reflector dynamic wavelength composed of optical line terminal, using a fiber, and a number of transmitters than the opt coupler with a remote nodes connected, remote nodes connected to the output corresponding Passive Optical Network, a network of first-class;Passive Optical Network, the feeder lines from remote nodes through a arrayed waveguide grating (AWG) and the number of optical network unit attached to a second-class network . This inventioncombines TDM and WDM network structure of the levels,connects more usersand cover greater access in the wider regionvirtual private network connectivity.
Owner:SHANGHAI JIAO TONG UNIV

Home security system

The invention discloses a novel home security system. The novel home security system comprises a host, a remote controller, a remote terminal and a sensing device provided with a radio transmitter-receiver set; the host is provided with a radio transmitting-receiving module, and the host is in radio connection with the sensing device, and therefore, control and information transmission can be realized through receiving and transmitting radio signals; the host is provided with a system state triggering control module, so that system working states can be selected according to conditions detected by system devices and the sensing device; and the sensing device is provided with a backup power supply. With the novel home security system of the invention adopted, the system working states can be reasonably controlled, and power consumption can be reduced, and standby time can be increased, and storage space can be saved; the sensing device and the host can be connected with each other through radios, and therefore, network connections can be diversified, and high security and firmness can be realized; the sensing device is ganged, so that a better early warning effect can be realized; and control terminal operation authority is clear, and a user identification function is realized, and therefore, false warning can be decreased, and management can be facilitated.
Owner:李观彧

Bi-directional, reverse blocking battery switch

ActiveUS20090179265A1Reduce switchMinimize die costTransistorSemiconductor/solid-state device detailsBackplaneHigh current
Embodiments of the present invention relate to an improved die layout for a bi-directional and reverse blocking battery switch. According to one embodiment, two switches are oriented side-by-side, rather than end-to-end, in a die package. This configuration reduces the total switch resistance for a given die area, often reducing the resistance enough to avoid the use of backmetal in order to meet resistance specifications. Elimination of backmetal reduces the overall cost of the die package and removes the potential failure modes associated with the manufacture of backmetal. Embodiments of the present invention may also allow for more pin connections and an increased pin pitch. This results in redundant connections for higher current connections, thereby reducing electrical and thermal resistance and minimizing the costs of manufacture or implementation of the die package.
Owner:GEM SERVICES
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