6363results about How to "Improve shielding effect" patented technology

A system and method for authenticating documents and content thereof. A counterfeit resistant document recording medium is provided, having thereon a predefined unique document identifier and at least one security feature. The recording medium is thereafter imprinted with document content, which typically varies between documents. The document content is stored in a database, indexed by an associated document identifier. The document may then be authenticated by checking the security feature and comparing the stored document content with a perceived document content. The system provides a number of opportunities for commercial exploitation, including sales of identified recording media, recording of information in a database, on-line authentication transactions, differential accounting for document validations and counterfeit identifications, imprinting devices, authentication devices, and the like. The system prevents counterfeiting of valuable documents through casual means by providing both physical and logical security.

A module substrate defined by an aggregate substrate is prepared, and circuit components are mounted on the module substrate. An insulating resin layer is formed on substantially the entire top surface of the module substrate such that the circuit components are disposed in the insulating resin layer, and a top-surface-shielding layer is formed on the top surface of the insulating resin layer. First through holes are formed in the module substrate and the insulating resin layer at locations corresponding to portions of boundary lines of small substrates so as to extend in a thickness direction of the module substrate and the insulating resin layer. First electrode films are formed on the inner surfaces of the first through holes so as to be connected to the first shielding layer, and the first through holes are filled with a filling material. Next, second through holes are formed at locations corresponding to the remaining portions of the boundary lines of small substrates so as to extend in the thickness direction, and second electrode films are formed on the inner surfaces of the second through holes so as to be connected to the top-surface-shielding layer and the first electrode films. The filling material, with which the first through holes are filled, is cut along the boundary lines of small substrates, resulting in a division of the aggregate substrate into small substrates to obtain circuit modules.

Chargers which can be connected to batteries with different charging requirements and which have an identification device for identification of the different batteries are disclosed. With these chargers, the different types of batteries are recognized by a magnetic identification device. In a first exemplary embodiment, the identification device comprises at least one magnetic sensor, which is arranged in or on the charger and detects at least one magnetic parameter of a magnetic element, which is mounted in or on the battery. In a second exemplary embodiment, the identification device has at least one magnetic element and at least one magnetic sensor for detection of at least one magnetic parameter of the at least one magnetic element. The battery comprises a shielding and/or amplifying device, which alter(s) the at least one magnetic parameter of the at least one magnetic element.

An EMI shielding spacer gasket assembly for interposition under a predetermined compressive load within an electronics enclosure between a first surface and an oppositely-disposed second surface of the enclosure. The assembly includes a frame member and an electrically conductive, elastomeric member extending along at least a portion of the perimeter of the frame member as retained on a corresponding peripheral edge surface thereof. The elastomeric member has an outboard side which is compressible axially under the compressive load for providing an electrically conductive pathway between the surfaces of the enclosure. In an uncompressed orientation, the outboard side of the elastomeric member exhibits elongate upper and lower bearing portions which are disposed at a spaced-apart radial distance from the frame member to define a corresponding bending moment arm. Each of the bearing portions is angularly deflectable relative to the moment arm to effect the compression of the elastomeric member under a relatively low compressive load.

An integrated circuit device as a first IC chip, a second IC chip, and a circuit board having a hole formed therein that is large enough to permit the second IC chip to be accommodated therein. The first and second IC chips are bonded together so as to be electrically connected together, and the first IC chip is mounted on the circuit board with the second IC chip accommodated in the hole formed in the circuit board. Here, one of the IC chips forming a chip-on-chip structure is accommodated in the hole formed in the circuit board, making further thickness reduction possible. Moreover, the obverse surfaces of the IC chips are located closer to the circuit board, making possible wireless mounting of the IC chips, despite forming a chip-on-chip structure, on the circuit board through connection using bumps. This helps reduce trouble due to inductance in a circuit that handles a high-frequency signal.

Disclosed herein is a material for altering electromagnetic radiation incident on the material. The material disclosed herein comprises carbon nanotubes having a length (L) that meets the following formula (1):

L≧½λ  (1)

where λ is the wavelength of the electromagnetic radiation incident on the material. Also disclosed herein are methods of altering electromagnetic radiation, including mitigating, intensifying, or absorbing and re-transmitting electromagnetic radiation using the disclosed material.

A staple delivery applicator for delivering radioactive staples during brachytherapy medical treatment has an actuating device for at source staples located distally from the actuating device. The actuating device is removably attachable to an actuator arm on a proximal end. A staple applicator cartridge holder is attached to the actuator arm on a distal end. The staple applicator cartridge is mountable in the holder and having a plurality of slots for mounting of radioactive source staples therein. An anvil therein crimps the staples. The staple applicator cartridge holder is removably mountable in a connector and the connector is also removably mounted to a surgical staple holder. A trigger device being one of the actuating devices has a control for closing the anvil of the cartridge holder and for firing of the source staples in the cartridge therein to cause the staples to crimp, and a control for opening the anvil and releasing the trigger device from the actuator arm.

The present invention discloses a glare shielding device. The glare shielding device includes a microprocessor for controlling an activation time and a driving time of a liquid crystal panel. The microprocessor generates an activation control signal of a liquid crystal activating portion, a driving control signal of a liquid crystal driving portion, and a power off control signal in response to a simultaneous detection of a welding light and a high frequency generated during a welding process. The liquid crystal activating portion becomes a floating state in a standby mode and activates the liquid crystal panel using a minus voltage between a high voltage and an activation voltage. The liquid crystal driving portion becomes a floating state in a standby mode and drives the liquid crystal panel in response to the driving control signal.

This invention provides the electromagnetic waves shield material that has a sufficient effect of shielding the electromagnetic waves by making the electric conductive fibers into mesh. And this invention also provides the electromagnetic waves shield mobile phone case that avoids a harmful effect on the human body without reducing the function of communication of the mobile phone used the said electromagnetic waves shield material.

The fibers with electric conductivity are woven into mesh by a general knitting machine like a machine for tricot. The cost is low even used for the wide area to shield the electromagnetic waves because the consumption of the fibers needed is less. The coarseness of the net is maintained the same by controlling the movement of the length and breadth each other.

To avoid the radiation to the head direction, the electromagnetic waves shield material is used for the front and upper sides of the mobile phone case which are the direction to the head when the mobile phone is in use. The regular material without electromagnetic waves shield effect is used for the both sides of the mobile phone case.

The antenna cap with electromagnetic shield structure is attached to the said upper side of the electromagnetic wave shield case. The electricity with high frequency is conducted between the above antenna cap and the upper side of the electromagnetic wave shield case. The said antenna cap is a conic tube cut it's head obliquely. The opening part is made to face in the opposite side of the head when it is attached to the antenna. A metallic pin is attached to the outside of the antenna cap. This metallic pin conducts high frequent electricity with the wire antenna at the mobile phone body when it is attached. It functions as an additional antenna to the wire antenna at the mobile phone body.

A transparent shock-absorbing laminate to be formed on a glass substrate for a display panel having a fracture strength such that it is fractured by a falling ball impact (drop height: 1.5 m; ball weight: 510 g) corresponding to 79,000 N, the transparent shock-absorbing laminate comprising a shatterproof layer having a shearing modulus of 2x108 Pa or more, at least two fracture-proof layers having a shearing modulus ranging from 1x104 to 2x108 Pa, each having different modulus, and a transparent pressure-sensitive adhesive layer.

A solid-state image pickup device, comprising:

• • a solid-state image pickup element;
  • a circuit-board main body to which the solid-state image pickup element is connected;
  • a shield piece consecutively connected to the circuit-board main body, capable of being folded, and having a shield pattern disposed; and
  • a signal cable which is connected to a connection terminal disposed on the circuit-board main body and transmits an input/output signal to the solid-state image pickup element, wherein
  • the shield piece is folded at least to one face side of a region where the connection terminal is formed.

A resilient EMI shielding and/or environmental sealing gasket for interposition between a first interface surface and an oppositely-disposed second interface surface. The gasket is formed of an elongate body of indefinite length which extends along a longitudinal axis. The body includes base and apex surfaces, and opposing first and second lateral surfaces which extend intermediate the base and apex surfaces. The base surface itself extends along the length the body as configured for proximally supporting the gasket on the first interface surface. The apex surface, in turn, extends radially from the longitudinal axis for distal contact with the second interface surface, and further extends along the longitudinal axis as defining a first waveform profile characterized as having a first periodic series of alternating first high and low amplitude intervals. The second lateral surface also extends along the longitudinal axis as defining a second waveform profile which is disposed generally transverse to the first waveform profile and which is similarly characterized as having a second periodic series of alternating second high and low amplitude intervals. The gasket so formed is deformable under a predetermined compressive force between the first and second interface surfaces into a stressed orientation characterized in that the body is deflected intermediate the base and apex surfaces.

The invention discloses a fully-degradable polylactic acid fiber SMS compound non-woven and a manufacturing method thereof. The non-woven is compounded by three layers of non-woven by self-bonding or hot rolling, wherein the middle layer is polylactic acid meltblown non-woven, and the upper layer and the lower layer of the middle layer are both polylactic acid spunbonded non-woven. The SMS non-woven is even and has stable quality and excellent physical property, filtering property and shielding property. A thin SMS product has favourable waterproof permeability and is especially suitable for the fields of hygienic materials, packaging materials and the like; an SMS product with medium thickness is suitable for the disposable products of the field of medical treatments, and a thick SMS product is suitable for the field of industrial filtering. The production technology of the invention is easy to operate and control, has favorable stability and can carry out industrial production.

The invention provides an aramid thin sheet material comprising two components of aramid staple fibers and fibrillated aramid, or said two components and aramid fibrid, in particular, characterized by satisfying both of the following expressions (1) and (2):

[internal resistance] (μm)≦250 (μm)  expression (1)

[Oken-type gas permeability] (sec/100 cm³)≧0.5 (sec/100 cm³)  expression (2)

wherein the [internal resistance] is a resistance value calculated by the following expression (3): $\begin{array}{cc}\frac{\begin{array}{c}[\mathrm{internal}\mathrm{resistance}]\left(\mu m\right)=\\ \left[\begin{array}{c}\mathrm{electrical}\mathrm{conductivity}\\ \mathrm{of}\mathrm{electrolyic}\mathrm{solution}\end{array}\right]\end{array}}{\left[\begin{array}{c}\begin{array}{c}\mathrm{electrical}\mathrm{conductivity}\\ \mathrm{of}\mathrm{electrolytic}\end{array}\\ \mathrm{solution}\text{-}\mathrm{injected}\\ \mathrm{thin}\mathrm{sheet}\mathrm{material}\end{array}\right]}\times \left[\begin{array}{c}\mathrm{thickness}\\ \mathrm{of}\mathrm{the}\\ \mathrm{thinsheet}\\ \mathrm{material}\end{array}\right]\left(\mu m\right).& \mathrm{expression}\left(3\right)\end{array}$

An electric physical unclonable function (PUF) (100) is provided comprising a semiconductor memory element (110) connectable to a PUF control means for reading content from the memory element and for deriving at least in part from said content a digital identifier, such as a secret key. Upon powering the memory element it settles into one of at least two different stable states. The particular stable state into which the memory element settles is dependent at least in part upon random physical characteristics of the memory element introduced during manufacture of the memory element. Settling of the memory element is further dependent upon a control input (112) of the memory element. The electric physical unclonable function comprises shielding means (142, 144) for shielding, during a time period including the power-up of the memory element and lasting at least until the settling of the memory element, the control input from receiving control signals upon which the particular stable state into which the memory element settles is dependent. In this way, the dependency of the memory element on its physical characteristics is improved, and dependency on possibly irreproducible control signals is reduced.