摘要:
A rotation angle detector for detecting a rotation angle of a magnet rotator includes: the rotator with a magnet mounted on a rotation shaft; a sensor chip; and an operation element. The chip includes: first and second normal component detection elements for detecting a magnetic field along with a normal direction and first and second rotation component detection elements for detecting a magnetic field along with a rotation direction. A phase difference Δθ, output signals S1, S2, C1, C2 of the detection elements, a value ΔθbR obtained by differentiating a component of the magnetic field along with the normal direction with respect to the rotation direction, and a value Δθbθ obtained by differentiating a component of the magnetic field along with the rotation direction with respect to the rotation direction satisfies: S 1 - S 2 Δθ ≅ Δ θ b R and C 1 - C 2 Δθ ≅ Δ θ b θ The operation element calculates: C 1 + α S 1 - S 2 Δθ and S 1 - β C 1 - C 2 Δθ .
摘要:
In a method and device which can quickly detect a fiber misconnection without setting an expected value, a node identifier of source node and an identifier of an interface for inputting/outputting a signal are set in a predetermined first field of a header to be transmitted to a destination node, and when both identifiers set in the first field are received from the destination node, both identifiers are set in a predetermined second field of the header to be transmitted and stored with the first field. When the identifiers set in the first and second fields are received and the identifiers of the second field among the identifiers are consistent with the identifiers of the first field stored at the second step (means), a connection is determined to be correct.
摘要:
To provide a node (an optical transmission apparatus) enabling expanding the upper limit of the number of nodes capable of automatically forming a squelch table generated in advance in a BLSR system. For the above purpose, when generating a squelch table, hop counts counted from an add node or a drop node are used in place of a node ID of the own, as information of the add node, the drop node, etc. to be transmitted and received using a squelch data link. Thus, it becomes unnecessary to transmit and receive two information sets, a source node ID and a destination node ID, as conventionally required. By this, the number of bits available for identifying nodes can be expanded, enabling expansion of the number of nodes for which a squelch table can be formed automatically.
摘要:
The present invention is applicable to an electronic apparatus such as a DVD player, a video player, a CD player, and the like, and is preferably applicable when used in a horizontal position or in a wall-hanging position and is designed to improve operability and visibility in any one of horizontal and wall-hanging positions. By removing rubber legs 30 from engagement holes 31 and hooking the engagement holes 31 on wall-hanging members, an electronic apparatus 1 can be used in a wall-hanging position. Then, by turning an interface section 13 upward by 90 degrees, the interface section 13 located on the bottom face side can be oriented toward the front side, thus providing excellent operability of an operation section 11 made up of a plurality of operation buttons 10 including a remote controlled reception section and making a display section 12 easy to see.
摘要:
An air pressure sensor fitting structure is provided for a vehicle wheel for fitting an air pressure sensor for detecting the air pressure of a tube of a vehicle wheel. The tube is provided with a pipe-shaped air valve and a tire covering the tube in the condition where the tube is fitted along a rim of a wheel. The air valve penetrates through the rim. A through-hole penetrating through a pipe of the air pressure valve is provided at a portion of the air pressure valve projecting from the rim. The air pressure sensor is fitted to the air pressure valve so as to cover the through-hole. The air pressure sensor can be fitted to a tubeless tire and a tubed tire while using the same structure.
摘要:
A rotation angle detector for detecting a rotation angle of a magnet rotator includes: the rotator with a magnet mounted on a rotation shaft; a sensor chip; and an operation element. The chip includes: first and second normal component detection elements for detecting a magnetic field along with a normal direction and first and second rotation component detection elements for detecting a magnetic field along with a rotation direction. A phase difference Δθ, output signals S1, S2, C1, C2 of the detection elements, a value ΔθbR obtained by differentiating a component of the magnetic field along with the normal direction with respect to the rotation direction, and a value Δθbθ obtained by differentiating a component of the magnetic field along with the rotation direction with respect to the rotation direction satisfies: S 1 - S 2 Δθ ≅ Δ θ b R and C 1 - C 2 Δθ ≅ Δ θ b θ The operation element calculates: C 1 + α S 1 - S 2 Δθ and S 1 - β C 1 - C 2 Δθ
摘要:
A rotation sensor includes: a magnetism generator; a sensor chip having a magneto-resistance element region and a Hall element region; and a detection circuit for detecting a relative rotation angle with reference to the magnetism generator according to output signals from each magneto-resistance element and each Hall element to detect. A phase difference is provided between output signals from the magneto-resistance elements. A phase difference is provided between output signals from the Hall elements. The magneto-resistance element region and the Hall element region at least partially overlap with each other. The detection circuit includes a comparison section, an angle computing section, and an output section. The comparison section compares an output level from each Hall element with a predetermined threshold value level, and provides a comparison result for each Hall element. The angle computing section calculates a calculation angle corresponding to the relative rotation angle with using an output signal from each magneto-resistance element. The output section compares the calculation angle with a predetermined threshold value, and provides a comparison result for each magneto-resistance element. The output section outputs a signal corresponding to the relative rotation angle based on a comparison result from the output section and a comparison result from the comparison section.
摘要:
A node apparatus in a communication network, includes: a processing unit which, in the node apparatus, performs adding and dropping of a frame signal onto the communication network; and a storage unit which stores topology information having link information that specifies each link existing in the communication network, wherein information that specifies the processing unit provided in the node apparatus is included in the topology information as the link information concerning a link connected to the node apparatus.
摘要:
A transmitting apparatus obtains cross-connect information on an input side and an output side, reserves the information as a cross-connect for management shift, adds object information formed of that cross-connect information and others to a signaling message for transmission and reception, and also updates the reserved cross-connect for management shift to shift path management.
摘要:
A signaling system able to improve the efficiency of utilization of network resources and autonomously set a correct spare route, that is, a signaling system setting a path passing through two rings interconnected by a plurality of nodes by signaling wherein each node is provided with an inter-node connection information table including topology information in the network and a branch node judgment unit for judging whether a home node is a branch node based on the content of the inter-node connection information table and wherein when the home node receives a signaling message for setting a working path and it is judged that the node is a branch node, the signaling of the spare path is started for the destination node of the spare path based on the information in the inter-node connection information table so as to autonomous set the spare path.