摘要:
A technology precluding attacks through peripheral devices thefts to a network of electronic appliance, by utilizing physical chip identification devices, is disclosed. The electronic appliance in the network are divided into the peripheral devices and stem servers managing registration information of the peripheral devices, wherein the stem servers serve as central control using software, and the peripheral devices are managed at device-level by having physical chip identification devices, thus the security of the whole network is efficiently reinforced.
摘要:
A network of electronic appliances includes a plurality of network units of electronic appliances. The network units include a first network unit and a plurality of second network units. The first network unit is connected to at least one of the second network units. Each of the network units includes a stem server and a plurality of peripheral devices connected to the stem server. The stem server includes at least one passcode and at least one list of a plurality of registration codes. Each list is associated to a respective passcode. Each registration code of one list associating to one passcode corresponds to a respective peripheral device. Each registration code is generated in response to a respective passcode using physical randomness of a respective peripheral device in correspondence to the passcode. An address of each identification cell is defined by several word lines and bit lines.
摘要:
A technology precluding attacks through peripheral devices thefts to a network of electronic appliance, by utilizing physical chip identification devices, is disclosed. The electronic appliance in the network are divided into the peripheral devices and stem servers managing registration information of the peripheral devices, wherein the stem servers serve as central control using software, and the peripheral devices are managed at device-level by having physical chip identification devices, thus the security of the whole network is efficiently reinforced.
摘要:
An example according to one embodiment includes a first coil and a second coil spaced apart therefrom. The system is supplied with power from a primary-side circuit to a secondary-side circuit and vice versa. The primary-side circuit includes the first coil. The secondary-side circuit includes the second coil. The primary-side circuit connects to a first converter that converts direct current into alternating current and vice versa. The first converter connects to second converter that converts direct current into alternating current and vice versa, and the second converter further connects to a commercial power supply. The secondary-side circuit connects to third converter that converts direct current into alternating current and vice versa, and the third converter further connects to direct current power supply of a moving body. Bidirectional power transfer is performed only by a switching operation of the first converter, the second converter, and the third converter.
摘要:
According to one embodiment, a mobile wireless apparatus includes: a first housing; and a second housing configured to be slidably connected to the first housing. The first housing includes: a conductor section; and a conducting member configured comprise a conductive material and to be connected to the conductor section. The second housing includes: a ground circuit; a power feed circuit; a slide member configured to comprise a conductive material, to be connected to the ground circuit, and to be slidably engaged with the first housing; and an unbalanced antenna configured to be connected to the power feed circuit. The conducting member is configured to make contact with the slide member when the first housing is opened with respect to the second housing.
摘要:
A semiconductor device capable of suppressing generation of a high electric field and preventing a dielectric breakdown from occurring, and a method of manufacturing the same. The method of manufacturing a semiconductor device includes (a) preparing an n+ substrate to be a ground constituted by a silicon carbide semiconductor of a first conductivity type, (b) forming a recess structure surrounding an element region on the n+ substrate by using a resist pattern, and (c) forming a guard ring injection layer to be an impurity layer of a second conductivity type in a recess bottom surface and a recess side surface in the recess structure by impurity injection through the resist pattern, and a corner portion of the recess structure is covered with the impurity layer.
摘要:
A modeling device is disclosed that easily projects characteristic information obtained from an object onto a differently-shaped object, even if the object, from which the characteristic information is obtained, has a complex shape. A modeling device in one embodiment of the present invention includes a virtually electrifying section to calculate an electric potential at a spot in a heart at the time when a predetermined voltage is applied to the heart, and a projecting section to project a fiber orientation onto a heart model created on the basis of shape information that is input to the input section. The projecting section specifies a spot to be a target of projection on the basis of the electric potential obtained by the virtually electrifying section. Use of the electric potential in specifying the spot makes it possible to easily project the fiber orientation onto any heart having complex and various shapes.
摘要:
The performance of a power transducer is improved while efficiently using a power semiconductor also by managing the permissible duty factor of the power semiconductor in the regenerative braking circuit provided in the power transducer. The user is allowed to set, through an operation panel provided on the power transducer, the resistance value of the regenerative braking resistor for thermally consuming the rotational energy generated during motor deceleration. The power transducer performs the steps of: calculating the current which flows in the regenerative braking circuit from the resistance value setting; obtaining the generation loss of the power semiconductor in the regenerative braking circuit with the calculated current value; and determining the permissible duty factor of the power semiconductor from the obtained generation loss.
摘要:
A method for switching between first and second voltages is provided. Initially, a first voltage is provided from a first input terminal to an output terminal through a first MOS transistor, and the first MOS transistor is deactivated. A back-gate of a second MOS transistor is shorted to the output terminal in response to the deactivation of the first MOS transistor and after a settling interval, and the second MOS transistor is activated while its back-gate is shorted to the terminal so as to provide a second voltage from a second input terminal to the output terminal.
摘要:
A radio communication apparatus configured to be used for first radio communication and second radio communication which are different from each other is provided. The radio communication apparatus has a first antenna, a coupling reduction element, a magnetic material sheet and a second antenna. The first antenna is configured to be used for the first radio communication, and is formed by a conductive line wound in a plane like a coil. The coupling reduction element is formed by a plane-shaped conductor, provided almost parallel to the plane of the first antenna, and configured to be put in a condition of electrical floating. The magnetic material sheet is provided between the first antenna and the coupling reduction element. The second antenna is configured to be used for the second radio communication, and is provided close to at least a portion of the first antenna.