374 results about "Secure unit" patented technology

<heading lvl="0">Abstract of Disclosure</heading> Before use, a population of tamper-resistant cryptographic enforcement devices is partitioned into groups and issued one or more group keys. Each tamper-resistant device contains multiple computational units to control access to digital content. One of the computational units within each tamper-resistant device communicates with another of the computational units acting as an interface control processor, and serves to protect the contents of a nonvolatile memory from unauthorized access or modification by other portions of the tamper-resistant device, while performing cryptographic computations using the memory contents. Content providers enforce viewing privileges by transmitting encrypted rights keys to a large number of recipient devices. These recipient devices process received messages using the protected processing environment and memory space of the secure unit. The processing result depends on whether the recipient device was specified by the content provider as authorized to view some encrypted digital content. Authorized recipient devices can use the processing result in decrypting the content, while unauthorized devices cannot decrypt the content. A related aspect of the invention provides for securing computational units and controlling attacks. For example, updates to the nonvolatile memory, including program updates, are supported and protected via a cryptographic unlocking and validation process in the secure unit, which can include digital signature verification.

A device is disclosed for introducing a flexible elongated element through at least two portions of a subject. In an embodiment, the device includes a proximal end and a distal end, as well as an advancement unit for longitudinally advancing the flexible elongated element toward the distal end such that a proximal end of the elongated element may pass from the distal end of said device with sufficient force to pass through the portions of the subject. The device also includes a securing unit for variably adjusting a securing force applied by the flexible elongated element to secure together the portions of the subject.

A LED tube includes a translucent or fluorescent tube of substantially the shape and size of a fluorescence tube, inside which one or more LED components and a current control unit are installed. At both ends of the LED tube, there is a pair of contact pins for connecting the light element mechanically and electrically to the tube holders of the fluorescence tube lighting fixture. The tube lamp has a safety unit arranged to prevent a voltage from transferring through the tube lamp from its one end to the other until a voltage supplied from the corresponding tube holder of the lighting fixture to the pair of contact pins has been separately detected at each end of the tube lamp. Inside the LED tube, there is at least one optical line that is arranged to transfer a control or measurement signal associated with the safety unit from one end of the LED tube to the other without capacitive leakage currents.

A furniture device includes first and second leg frames pivotally connected to a main frame, and a slide rod inserted into and movable within the second leg frame. The second leg frame includes an elongate slot having first and second ends respectively proximate to and distal from the top end of the second leg frame. A securing unit has a fastening element extending through the slot and the slide rod and fixed to the main frame, and is operable to slide the fastening element to the first and second ends of the slot in unfolded and folded states of the furniture device, respectively. A locking unit is provided to lock the slide rod against movement when the fastening element moves to the first end of the slot.

The planar lighting device includes a light guide plate including two symmetrical, inclined planes increasingly distanced from the light exit plane with the increasing distance from the light entrance planes toward the center, a curved portion joining the inclined planes, and scattering particles dispersed therein; light sources; a housing; a securing unit securing the light sources and light guide plate to keep their distance constant, and a sliding mechanism allowing the securing unit to slide. Distance between the light entrance planes, thicknesses at the light entrance planes and at the central curved portion, its radius of curvature and taper of the inclined planes are all held within respective given ranges as well as scattering particle diameter and density, light use efficiency and middle-high ratio of the brightness distribution. A thin planar lighting device yielding high light use efficiency with a minimized brightness unevenness and a high-in-the-middle brightness distribution.

In a data communication system, data is transmitted from a control device to a communication interface and from there via a communication bus to additional communication interfaces of trigger devices. The communication interface on the control device side has inputs, to which signals from said control device and a disarming switch can be assigned. The disarming switch can be circumvented by a bypass switch which is controlled by the control device. The state of the signal at the inputs of the communication interface on the control device side is transmitted to coresponding outputs of the communication interfaces of the triggger devices. A trigger device has a safety unit which is used to test at least one trigger unit, when the state of the signal of the outputs authorizes such a test and the trigger voltage source is not yet charged wth the full trigger voltage. In said state, the safety unit also blocks triggering as soon as the trigger voltage has been reached. The inventive system ensures a high degree of functional safety and flexibility.

A system, method and computer program product for an isolated security domain which is a bounded area of the VM for protected objects. The objects are software units (including executable code data), hardware units (e.g., ports) or a combination thereof. The secure units in this area are accessible using secure rules used to ensure that objects are not malware. Authentication for connections to security domain is required and certain areas of the domain are made to be read only.

An automatic shooting mechanism capable of remote switching and unmanned switching between a safety mode and a shooting mode, and remote shooting and unmanned shooting. Also provided is a sentry robot employing the automatic shooting mechanism and capable of performing wide and narrow monitoring and sentry duties in short and long ranges, and automatically shooting at a target. The automatic shooting mechanism comprises a safety unit including a safety solenoid and an elastic member to move a safety pin of a gun between a safety mode position and a shooting mode position, a return unit for applying force to the safety pin of the gun to move the safety pin to the safety mode position. The automatic shooting mechanism further comprises a shooting unit including a shooting solenoid to move a connecting link back and forth, and a trigger push member having one end contacting a trigger of the gun and the other end contacting the shooting solenoid, and coupled at a middle portion of the shooting unit to be capable of pivoting to pull the trigger as desired.

A device is disclosed for introducing a flexible elongated element through at least two portions of a subject. In an embodiment, the device includes a proximal end and a distal end, as well as an advancement unit for longitudinally advancing the flexible elongated element toward the distal end such that a proximal end of the elongated element may pass from the distal end of said device with sufficient force to pass through the portions of the subject. The device also includes a securing unit for variably adjusting a securing force applied by the flexible elongated element to secure together the portions of the subject.

The invention discloses a computer network safety attestation system and method that comprises terminal computer and network server, the input equipment of the terminal computer includes input unit (4) and interface unit (5), said terminal computer also includes control unit (1) and safe unit (2); the safe unit (2) receives the data input from the input unit (4) in safe inputting mode, encrypting data input with symmetry arithmetic by key, temporary key is encrypted and underwritten by the server general key transmitted by the network server with asymmetric arithmetic; said network server includes encrypting and deciphering unit(7); the encrypting and deciphering unit(7) deciphers the data package transmitted from the terminal computer with corresponding asymmetric arithmetic using server private key to obtain the key, validating the validity of temporary key, then the encrypted character string is deciphered with corresponding symmetry arithmetic using the temporary key to obtain data input by user. The inventions can guarantees the input data of computer not be filched, decrypted or forged.

A ceiling mount LED lamp is provided. The ceiling mount LED lamp includes a securing unit, and a lighting unit. The securing unit includes a frame body, a back plate, a top plate, and a plurality of holding strips. The back plate is positioned at an opposite side of the frame body. The top plate is positioned on the back plate. The holding strips are provided at periphery inner sides of the securing unit. The holding strips have a U-shaped cross-section. The lighting unit is positioned between the frame body and the back plate of the securing unit. The lighting unit includes a reflective sheet, at least one circuit board, a plurality of LED units, a light guide plate, and a diffusion sheet. The ceiling mount LED lamp has a simple structure and can be conveniently assembled and disassembled. Further, it is cheap and suitable for mass production.

An elongated-object clamp 1 which reduces transmission of vibration between an object 2 and a support 3 in a circumferential direction of the object and an axial direction comprises a gripper unit 5 for holding an elongated object such as a pipe, a securing unit for attaching the clamp to a support such as a body panel, and a vibration absorbing unit 7 for reducing transmission of vibration between the gripper unit and the securing unit. The vibration absorbing unit can bend in various directions and includes first curved arms and second curved arms stacked between the gripper unit and the securing unit, and arranged so that bending directions thereof cross.

A mobile communication unit having at least one operating mode comprising a security unit for enabling/disabling at least one operating mode, whereas the security unit is designed in such a way that at least one operating mode is temporarily disabled for the user of the mobile communication system. A checkpoint communicating unit may be used to control the operating mode of the mobile communication unit. The checkpoint communicating unit may include a status extracting unit for generating a request for a security status of the operating mode or operating modes of the mobile communication unit. The checkpoint may also include a lookup table containing at least the operating mode or operating modes to be disabled in the mobile communication unit. A comparison unit may be provided for comparing the security status received from the mobile communication unit to the disabling status stored in the lookup table.