Abstract: An LED-based lamp can be made to have a form factor compatible with fixtures designed for MR16 lamps. Such a lamp can have a housing that provides an external electrical connection. Inside the housing is disposed a single emitter structure having a substrate with multiple light-emitting diodes (LEDs) arranged thereon. Different LEDs produce light of different colors (or color temperatures). For example, at least one LED can produce a warm white light, while at least one other LED produces a cool white light and at least one other LED produces a red light. A total-internal-reflection (TIR) lens is positioned to collect light emitted from the single emitter structure and adapted to mix the light from the LEDs to produce a uniform white light. A diffusive coating is applied to a front face of the TIR lens for further color mixing.

Abstract: A network authentication method, a method for a client to request authentication, a client, and a device are provided.

Abstract: A lamp includes a single emitter structure having a substrate with 25 or more light emitting diodes (LEDs) arranged thereon and a power rating of 80 Watts or more, a total internal reflection (TIR) lens with a plurality of refractive surface regions disposed on the step-shaped upper surface of the optical body, and a holder having a plurality of tabs disposed along an inside rim of the holder and configured for radial compression fit with a flange of the lens, and three or more support members configured for centering the optical body member with respect to the single emitter structure. A low weight ratio of hardener over base resin below 6 is used, for example, between 1.5:1 to 2.5:1.

Abstract: A total-internal-reflection (TIR) lens for color mixing includes a body member having an outer surface and an interior open channel extending longitudinally through the body member. The body member and the interior open channel are substantially symmetric with respect to an optical axis, and the outer surface is shaped to provide total internal reflection. The body member has a first end surface region at a first end of the open channel for accommodating a light source and a second end surface region opposite the first end region. The second end surface region includes a plurality of refractive surface regions positioned around the second end region of the open channel. The lens is configured to provide projected light substantially centered with respect to the optical axis when the light source is positioned off the optical axis. In a specific embodiment, a lighting apparatus for providing centered white light includes such a lens and a plurality of light sources.

Abstract: Disclosed is a flood attack detection method, wherein the total number of keywords of a source packet is acquired, and the number of feature parameters corresponding to the source packet is acquired. A ratio of the number of feature parameters to the total number of keywords is compared with a preset threshold, and if the ratio is greater than or equal to the preset threshold, it is determined that a flood attack occurs.

Abstract: An LED (light-emitting diode) high-power wide-angle A-19 lamp needs only a single LED emitter having multiple LEDs. The LED A-19 lamp includes a lamp envelop structure configured for transmission of light therethrough and a base structure coupled to a lower portion of the lamp envelop structure for coupling to an external power source. The dimensions of the lamp envelop structure and the base structure conform to requirement of a conventional A-19 lamp. The LED emitter includes a plurality of light-emitting diodes (LEDs) disposed in a single recess in a substrate and a single lens disposed over the LEDs and the substrate. In a specific embodiment, the emitter is configured to consume electrical power of 30 Watts or higher and to provide light distribution at 130 degrees or wider at 50% peak intensity without additional secondary optical components.

Abstract: A total internal reflection (TIR) lens has an integrated lamp cover adapted to a lamp of a desired form factor (e.g., PAR-38). The size and shape of the TIR lens can be adapted to optimize the light output of the lamp with little regard to the desired form factor. The integrated lamp cover can extend the front surface of the TIR lens in a direction transverse from the optical axis.

Abstract: A stylus for a portable electronic device includes a main body, a nib, and a lens. The main body defines a chamber in an end, the nib and the lens are connected to the other end of the main body. A space if formed between the nib and the lens. An extending direction of the nib intersects with an extending direction of the lens to form an angle, and the angle is in a range from 0°-90°.

Abstract: A stylus for a portable electronic device, includes a bar portion, a nib portion, and a lens member. The nib portion is formed at an end of the bar portion, the lens member is rotatably connected to the nib portion and used as a magnifying lens to better observe characters written using the stylus.

Abstract: A stylus for a portable electronic device includes a main body, a nib, and a lens member. A through hole runs through two ends of the main body. The nib and the lens member are rotatably connected to the main body.

Abstract: The present invention discloses a method for network attack protection, a device, and a system thereof. The method includes: receiving information about attack source, in which the information about the attack source carries address information about an attacker; obtaining address information about a gateway corresponding to the attacker according to the address information about the attacker and a preset mapping relationship between the attacker and the gateway corresponding to the attacker; and sending a first control message to the gateway corresponding to the attacker according to the address information about the gateway corresponding to the attacker, wherein the first control message instructs the gateway corresponding to the attacker to control traffic of the attacker. The present invention may be used on a communications network to prevent the attacker from attacking victim hosts on the network from the root, avoid blockage on the upstream network of the victim hosts.

Abstract: A battery cover assembly for an electronic device includes a main body and a battery cover detachably attached to the main body. The main body includes at least one latching portion, at least one opening, and an engagement portion adjacent to the at least one opening. The battery cover includes at least one protrusion, at least one extending block and a retaining member adjacent to the at least one extending block. The at least one protrusion is slidably latched with the at least one latching portion. The at least one extending block engages into the at least one opening, and the retaining member is pressed to assembled with the engagement portion.

Abstract: A battery cover assembly includes a main body and a battery cover detachably attached to the main body. The main body defines at least one latching portion, at least one opening and a slot adjacent to the at least one opening. The battery cover includes at least one protrusion, at least one extending block and a retaining member adjacent to the at least one extending block. The at least one protrusion is slidably latched with the at least one latching portion. The retaining member passes the slot to latch on the main body. The at least one extending block engages into the at least one opening.

Abstract: A power supply circuit for a PCI-E slot includes a control chip, a first electronic switch, and a second electronic switch. The control chip determines a status of a motherboard, outputting a control signal. A first terminal of the first electronic switch is connected to the control chip to receive the control signal, and connected to a +3.3V dual power supply of the motherboard through a first resistor. A second terminal of the first electronic switch is grounded. A third terminal of the first electronic switch is connected to a first terminal of the second electronic switch, and connected to the +3.3V dual power supply through a second resistor. A second terminal of the second electronic switch is connected to the +3.3V dual power supply. A third terminal of the second electronic switch is connected to a PCI-E slot.

Abstract: A method, a device, and a system for alerting against unknown malicious codes are disclosed. The method includes: detecting characteristics of a packet; judging whether any suspicious code exists in the packet according to a result of the detection; recording a source address of the suspicious code if the suspicious code exists in the packet; and sending alert information that carries the source address to a monitoring device. The embodiments of the present invention can report source addresses of numerous suspicious codes proactively at the earliest possible time, lay a foundation for shortening the time required for overcoming virus threats, and avoid the trouble of installing software on the client.

Abstract: A lens has an optical body member with a first end, a second end, and an outer surface, the outer surface being shaped to provide total internal reflection. The optical body member further has an interior open channel extending longitudinally from the first end to the second end thereof. The optical body member further has a plurality of refractive surface regions disposed in the second end thereof and around the second opening of the interior open channel. The optical body member also has a plurality of protrusions extending from the first end of the optical body member. The protrusions are disposed circumferentially around the first opening of the interior open channel and are arranged to center the optical body member and to maintain the optical body member at a predetermined position with respect to the light source. In a light apparatus having an LED emitter disposed on a substrate, the protrusions can fit into notches in the substrate.

Abstract: A method, an apparatus, and a system for detecting Botnet are disclosed. The method for detecting Botnet includes: obtaining an address information about a control host in a Bot sample by using an auto breakout environment; sending a query request message to a traffic analysis device to obtain an address information of a Bot host connected with the control host, in which the query request message carries the address information about the control host; and receiving a query response message returned by the traffic analysis device, in which the query response message carries the address information of the Bot host connected with the control host. The method for detecting Botnet can obtain the Botnet information in real time and construct a topology of the Botnet.

Abstract: A power supply circuit for a PCI-E slot includes a control chip, a first electronic switch, and a second electronic switch. The control chip determines a status of a motherboard, outputting a control signal. A first terminal of the first electronic switch is connected to the control chip to receive the control signal, and connected to a +3.3V dual power supply of the motherboard through a first resistor. A second terminal of the first electronic switch is grounded. A third terminal of the first electronic switch is connected to a first terminal of the second electronic switch, and connected to the +3.3V dual power supply through a second resistor. A second terminal of the second electronic switch is connected to the +3.3V dual power supply. A third terminal of the second electronic switch is connected to a PCI-E slot.

Abstract: A lens assembly has a lens and a holder. The lens has an optical body member having a first end, a second end, and an outer surface. The outer surface is shaped to provide total internal reflection. The optical body member also has an interior open channel extending longitudinally from the first end to the second end thereof. The second end includes a peripheral flange that is free of curved refractive surface regions and has one or more index regions and one or more notches formed therein. The holder is a substantially cylindrical support member having a hollow interior region shaped to accommodate the optical body member. The holder also has a top rim region having one or more slots for receiving the index regions of the optical body member and one or more snap clips for fitting to the notches of the peripheral flange region of the optical body member.

Abstract: A lighting apparatus includes a light source having a plurality of light-emitting-diodes and a lens assembly with a lens and a lens holder. The lens includes a body member having an outer surface shaped to provide total internal reflection and an interior open channel extending longitudinally through the body member. The body member has a first end region for accommodating the light source and a second end region that includes a plurality of refractive surface regions positioned around the open channel. The lens holder has a concave interior surface shaped to accommodate the optical body member of the lens and a convex exterior surface. The holder has multiple clips for securing the lens and three or more support members extending from the exterior surface toward the first end.