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50 results about "Reversible circuits" patented technology

Nonreciprocal circuit element

A nonreciprocal circuit element includes first and second center electrodes. On a ferrite to which a direct-current magnetic field is applied from a permanent magnet, the first and second center electrodes are insulated and intersect. First and second ends of the first center electrode are connected to an input port and an output port, respectively. First and second ends of the second center electrode are connected to the output port and a ground port, respectively. A first matching capacitor and a resistor are connected between the input port and the output port. A second matching capacitor is connected between the output port and the ground port. A parallel resonant circuit is connected in parallel to the resistor. A coupling element is connected between the parallel resonant circuit and another parallel resonant circuit including the first center electrode and the first matching capacitor so as to the parallel resonant circuits.
Owner:MURATA MFG CO LTD

Method for designing key unit of DES encryption system based on reversible logical gate

The invention relates to a method for designing a key unit of a DES encryption system based on a reversible logical gate. A one-from-the-four data selector and a reversible D trigger which are based on a reversible logical gate are formed by using the cascade connection of a Fredkin gate and a Feynman gate, a reversible circuit of a bidirectional shift register is formed on the basis of the one-from-the-four data selector and the reversible D trigger, and finally the reversible design of the key unit of the DES encryption system is realized. Due to the design on main components of the key unit of the DES encryption system based on the reversible logical gate, the energy loss caused by the loss of logical information bits in the DES encryption system is avoided and the power consumed by the DES encryption system is reduced.
Owner:NANTONG UNIVERSITY

Non-reciprocal circuit element

A non-reciprocal circuit element comprising a first inductance element connected between a first input / output port and a second input / output port; a second inductance element connected between the second input / output port and a grounded point; a first capacitance element connected between the first input / output port and the second input / output port for constituting a parallel resonant circuit along with the first inductance element; a second capacitance element connected between the second input / output port and a grounded point for constituting a parallel resonant circuit along with the second inductance element; and a resistance element connected between the first input / output port and the second input / output port; wherein the first capacitance element and / or the second capacitance element comprises a parallel connection of a capacitor, which is formed by an electrode pattern in a layer-built board comprising a dielectric and the electrode pattern, and a chip capacitor mounted on the layer-built board.
Owner:PROTERIAL LTD

AES hardware encryption system implementation method based on quantum reversible circuit

The invention provides a realization method of an AES hardware encryption system based on a quantum reversible circuit, and belongs to the technical field of information security. According to the technical scheme, the AES hardware encryption system based on the quantum reversible circuit comprises a quantum reversible circuit encryption and decryption module, a quantum secret key expansion moduleand a multi-interface selection module; the realization method comprises the following steps: realizing hardware setting of the quantum reversible line encryption and decryption module, finishing hardware setting of the quantum secret key expansion module, and setting the multi-interface selection module by adopting an electronic circuit. The method has the beneficial effects that the quantum reversible line-based encryption and decryption module and the quantum secret key expansion module are combined according to algorithm rules to construct the quantum reversible line-based encryption system, and the encryption complexity is (2n-1) times that of a traditional method; in addition, the multi-interface selection module can be connected with devices with various interfaces, and encryptionand decryption operation on various forms of information is completed.
Owner:NANTONG UNIVERSITY

Irreversible circuit element and module

ActiveUS20150372365A1Reduce in quantityLoad fluctuation is reduced and preventedTransformersPermanent magnetsIsolatorLow-pass filter
An irreversible circuit element includes first and second high pass isolators each including first and second center electrodes intersecting with and being insulated from each other on a ferrite to which a direct-current magnetic field is applied with a permanent magnet. One end of the first center electrode is an output port and the other end thereof is an input port, and one end of the second center electrode is another output port and the other end thereof is a ground port. A pass frequency band of the first isolator is higher than a pass frequency band of the second isolator. Respective output portions of the first and second isolators are electrically connected and defined as one output terminal, and a low pass filter LPF is inserted between the output terminal and the output port of the second isolator.
Owner:MURATA MFG CO LTD

Non reversible circuit element

A small non-reciprocal circuit element that can handle high-power signals without losing its characteristics. The irreversible circuit element includes a magnetic substrate capable of exhibiting anisotropy by application of a DC magnetic field. The strip lines insulated from each other are arranged at a predetermined angle on the surface of the substrate. Connect one end of these striplines to ground, and connect the other end between the capacitor and ground. The other end of a stripline is connected to a terminating resistor. The other ends of the other striplines are respectively connected to the input terminal and the output terminal. Such an irreversible circuit element has irreversible characteristics between input and output terminals. In this irreversible circuit element, an insulating heat conductor is arranged in a case. The heat conductor is used to dissipate the heat generated by the terminating resistor or the strip line.
Owner:PANASONIC CORP

Non-Reciprocal Circuit Device

A non-reciprocal circuit device comprising a first inductance element connected between a first input / output port and a second input / output port, a second inductance element connected between the second input / output port and the ground, a first capacitance element connected between the first input / output port and the second input / output port for constituting a parallel resonance circuit with the first inductance element, a second capacitance element connected between the second input / output port and the ground for constituting a parallel resonance circuit with the second inductance element, and a resistance element connected between the first input / output port and the second input / output port, the first and / or second capacitance elements being constituted by parallel-connecting capacitors formed by electrode patterns in a multilayer substrate comprising dielectric sheets and the electrode patterns to chip capacitors mounted onto the multilayer substrate.
Owner:HITACHI METALS LTD

Implementation method of quantum key extension module for AES hardware encryption system

The invention provides an implementation method of a quantum key extension module for an AES hardware encryption system, and belongs to the technical field of information security. According to the technical scheme, the implementation method of the quantum key extension module for the AES hardware encryption system comprises the following steps of A, implementing a g function; and B, implementinga key extension algorithm. The key extension module has the beneficial effects that the key extension module is constructed and realized by a quantum reversible circuit, and the complexity of the keyextension algorithm can be increased by (2n-1)! times; the method is mainly used for operating a 128-bit seed key; operation is performed on the 16-byte key; a new first round of 16-byte key is generated through extension, then the first round of key is operated to obtain a second round of key, in this way, a ten-round key is obtained, the key is provided for the encryption and decryption processin the AES hardware encryption system based on the quantum line, and the encryption effect and complexity of the AES hardware encryption system are improved.
Owner:NANTONG UNIVERSITY

Non-reversible circuit component

The invention provides a non-reciprocal circuit element, which can ensure the transmission frequency band required by the input and output signals, reduce the loss on the signal frequency, and increase the return loss of the input and output terminals at the same time. The non-reciprocal circuit element of the present invention comprises: a plate-shaped magnetic core (1), placed in a DC magnetic field, the upper surface is at right angles to the direction of the DC magnetic field, and 3 central conductors (2, 3, 4) are overlapped at equal angular intervals placed on the roughly central part of the magnetic core (1), one end is used as the input and output terminals (2c, 3c, 4c), and the other end is used as the ground terminal (2d, 3d, 4d); make the center part to the ground terminal (2d , 3d, 4d) between the central conductor (2, 3, 4) unit length inductance ratio of the central part to the input and output terminals (2c, 3c, 4c) between the central conductor (2, 3, 4) unit The inductance of the length is small.
Owner:ALPS ALPINE CO LTD

Non-reversible circuit element and communication equipment thereof

Provided is an isolator adopting even a structure of directly attaching a resistive element to a metallic yoke that can avoid the strength of the yoke from being decreased, uniformize the action of a bias magnetic field onto the yoke, and improve a connection state of terminals or an insulating state of the terminals from other components. The isolator (nonreciprocal circuit element) is provided with: a magnetic assembly; a magnetic member; an enclosure for housing them; input output terminals; and the resistive element 27 connected to one end of a center conductor and located on one inner face side of the enclosure. Further, the enclosure comprises a lower yoke 22 and an upper yoke, which are made of a metallic plate, the resistive element 27 is formed to include first and second terminals 27a, 27b, the first terminal 27a is placed on the lower yoke inner face via an insulating layer 30, a step difference 29 is formed at a part of the lower yoke inner face located at a side of the second terminal, and the second terminal 27b is connected to the lower yoke via the step difference 29.
Owner:ALPS ALPINE CO LTD

A desktop dual-purpose drilling and tapping machine tool for five-wheel parts of automobiles

The invention relates to a table type drilling and tapping dual-purpose machine tool for vehicle five-wheel fittings. The dual-purpose machine tool comprises a motor, a triangular belt, a machine tool main shaft, a main shaft lifting handle and a lifting mechanism, wherein the motor drives the machine tool main shaft to rotate through the triangular belt; and the main shaft lifting handle controls the lifting of the machine tool main shaft through the lifting mechanism. The dual-purpose machine tool further comprises an electric control box and a drilling and tapping changeover switch, wherein the electric control box and the drilling and tapping changeover switch are both fixed on the side wall of the lifting mechanism; a motor reversible circuit is arranged in the electric control box, and is connected with the motor; two travel limiting blocks are arranged on the main shaft lifting handle; the drilling and tapping changeover switch is started; the motor reversible circuit controls forward and reverse rotation of the motor to realize the conversion of drilling and tapping functions; and the two travel limiting blocks limit the drilling and tapping distance. Compared with the prior art, the dual-purpose machine tool has such advantages as high rigidity, long service cycle and high efficiency.
Owner:SHANGHAI GUOSHANG ELECTROMECHANICAL TECH

Center electrode assembly, nonreciprocal circuit device, and communication apparatus

A center electrode assembly, a nonreciprocal circuit device, and a communication apparatus are provided which have stable physical properties and high reliability, and which eliminate the risk of line breakage of the center electrodes thereof. The center electrode assembly includes an electrode assembly wherein a plurality of center electrodes extend outward from the center planar portion (ground electrode) thereof at a predetermined angular distance; and a ferrite. The center planar portion is abutted against the bottom surface of the ferrite, then the center electrodes are wrapped around the top surface of the ferrite across the side surface thereof, and these center electrodes are crossed with one another on the top surface of the ferrite. At least one center electrode is formed of one line, and the line width of the center electrode is set to be partly larger at the ferrite edge portion on the cold-end side.
Owner:MURATA MFG CO LTD

Non-reciprocal circuit element

Disclosed herein is a non-reciprocal circuit element that includes a magnetic rotator, a permanent magnet for applying a magnetic field to the magnetic rotator, a lower yoke, and an upper yoke fixed to the lower yoke and housing therein the magnetic rotator and the permanent magnet. The upper yoke includes a top plate part that covers the magnetic rotator and the permanent magnet from an upper side, and first and second side plate parts that face each other and cover the magnetic rotator and the permanent magnet from a side. The first and second side plate parts have first and second plate spring parts that sandwich the permanent magnet and bias it.
Owner:TDK CORPARATION

Non-reversible circuit element and method of manufacture

In this non-reciprocal circuit element, a box-like member 2 for accommodating a ferrite member 7 is formed of a second yoke 3 and an insulating resin body 5. A ground terminal 3e embedded in the resin body 5 has a coupling section 3c coupled to a bottom plate 3a and a bent tongue piece 3d extending along the external wall of the side wall 5b of the resin body 5. An L-shaped input / output terminal 4 embedded in the resin body 5 has a bottom 4a in the same plane state as the bottom plate 3a, and a bent side 4b extending along the external surface of the side wall 5b of the resin body 5. Thus, the bottom piece 4a of the input / output terminal 4 is in the same surface state as the bottom plate 3a of the second yoke 3, the thickness of the bottom wall of the box-like member 2 can be reduced, and a thin element can be obtained.
Owner:ALPS ALPINE CO LTD

A realization method of quantum secret key expansion module for AES hardware encryption system

The invention provides a method for realizing a quantum secret key expansion module used in an AES hardware encryption system, and belongs to the technical field of information security. The technical solution is: a method for realizing a quantum secret key expansion module for an AES hardware encryption system, comprising the following steps: step A, realization of g function; step B, realization of secret key expansion algorithm. The beneficial effects of the present invention are: the secret key expansion module of the present invention is realized by the quantum reversible circuit structure, which can increase the complexity of the secret key expansion algorithm (2 n -1)! Times, mainly for the operation of 128-bit seed secret key, operate on the 16-byte secret key, expand and generate a new first round of 16-byte secret key, and then perform operations on the first round of secret key to obtain the second round of secret key In this way, ten rounds of secret keys are obtained, which provide secret keys for the encryption and decryption process in the AES hardware encryption system based on quantum circuits, and improve the encryption effect and complexity of the AES hardware encryption system.
Owner:NANTONG UNIVERSITY

Current reversible circuit control method for broadening output voltage range

The invention discloses a current reversible circuit control method for broadening the output voltage range and belongs to the technical field of electric power converter. On the premise of fixed internal resistance of a cell of a current reversible circuit, the maximum value of output voltage Uo is obtained by setting the amplitude limiting value of the duty ratio d of a control loop, the rang of output voltage Uo is broadened, and the maximum of adjustment range of output voltage Uo is realized. The current reversible circuit control method is widely applied to the energy storage cell charge-discharge field and especially applied to the new energy power generation field, such as wind electricity and photovoltaic power generation, and the electromobile field, and plays an important role in realization of interaction of the cell and a power grid.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2

A realization method of AES hardware encryption system based on quantum reversible circuit

The invention provides an implementation method of an AES hardware encryption system based on a quantum reversible circuit, which belongs to the technical field of information security. The technical solution is: an AES hardware encryption system based on a quantum reversible circuit, including a quantum reversible circuit encryption and decryption module, a quantum secret key expansion module and a multi-interface selection module; the implementation method includes the following steps: realizing the quantum reversible circuit encryption and decryption module Hardware setting, complete the hardware setting of the quantum secret key expansion module, and use the electronic circuit to set the multi-interface selection module. The beneficial effects of the present invention are: the encryption and decryption module based on the quantum reversible circuit is combined with the quantum secret key expansion module according to algorithm rules to construct an encryption system based on the quantum reversible circuit, and the complexity of encryption is (2 n -1)! times, improve the encryption effect and anti-attack ability, and the multi-interface selection module can be connected with various interface devices to complete the encryption and decryption operations of various forms of information.
Owner:NANTONG UNIVERSITY

Table type drilling and tapping dual-purpose machine tool for vehicle five-wheel fittings

The invention relates to a table type drilling and tapping dual-purpose machine tool for vehicle five-wheel fittings. The dual-purpose machine tool comprises a motor, a triangular belt, a machine tool main shaft, a main shaft lifting handle and a lifting mechanism, wherein the motor drives the machine tool main shaft to rotate through the triangular belt; and the main shaft lifting handle controls the lifting of the machine tool main shaft through the lifting mechanism. The dual-purpose machine tool further comprises an electric control box and a drilling and tapping changeover switch, wherein the electric control box and the drilling and tapping changeover switch are both fixed on the side wall of the lifting mechanism; a motor reversible circuit is arranged in the electric control box, and is connected with the motor; two travel limiting blocks are arranged on the main shaft lifting handle; the drilling and tapping changeover switch is started; the motor reversible circuit controls forward and reverse rotation of the motor to realize the conversion of drilling and tapping functions; and the two travel limiting blocks limit the drilling and tapping distance. Compared with the prior art, the dual-purpose machine tool has such advantages as high rigidity, long service cycle and high efficiency.
Owner:SHANGHAI GUOSHANG ELECTROMECHANICAL TECH
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