88results about How to "Low cost configuration" patented technology

A head-mounted type display device includes: a spectacle frame for fixture to a user's head; a body unit 2 fixed to the spectacle frame and having an image output unit from which image output unit image light of an image to be displayed is output; an eyepiece optical unit 3 for allowing image light output from the image output unit to be incident on the eyepiece optical unit, for guiding the incident image light to the corresponding eyeball 11 of the user with the spectacle frame being mounted on the user's head, and for displaying, as a virtual image, a magnified version of the image from the image output unit within a user's visual field; and an attachment means 4 for attaching the eyepiece optical unit 3 to the body unit in a replaceable manner. The attachment means 4 may attach at least first and second eyepiece optical units to each other in a replaceable manner, the first and second eyepiece optical units having different optical axis paths L in optical systems for guiding the image light from the image output unit to the eyeball 11.

A folding seat apparatus for a vehicle comprising a slide mechanism for slidably moving a seat in a front-and-rear direction, and a pop-up mechanism for popping up a seat cushion. The slide mechanism and pop-up mechanism are connected to the control lever. The controller controls the actuator so that the control lever rotates in the forward or reverse direction. The pop-up mechanism is unlocked by rotating the control lever in a first direction, and the slide mechanism is unlocked by rotating the control lever in a second direction.

An image coding apparatus includes a first coding unit that discretely selects quantization parameters of a first range to perform calculation of generated code amounts corresponding to the selected quantization parameters, a second coding unit that performs calculation of generated code amounts corresponding to quantization parameters of a second range, a code amount control unit that decides deciding a temporary quantization parameter corresponding to a target code amount by calculating generated code amounts through an interpolation process for quantization parameters not selected by the first coding unit, and by comparing the generated code amounts corresponding to the selected quantization parameters and the generated code amounts calculated through the interpolation process with the target code amount, and decides an optimal quantization parameter corresponding to the target code amount by comparing the generated code amounts calculated by the second coding unit with the target code amount.

A received RZ-DPSK signal is guided to an interferometer. The interferometer comprises a 1-bit delaying element in an upper arm. A balanced photodiode converts a pair of optical signals output from the interferometer into electrical signal. A high-pass filter, which has a cut-off frequency equal or approximately equal to the symbol rate of transmission data, filters the signal output from the balanced photodiode. A BPSK demodulator circuit demodulates the output signal of the high-pass filter.

The present invention concerns a time-of-flight based imaging system having a photon emitter used as an illumination source, a photon sensor, and an electronic system for delivering a signal depending on the reception time of photons by said photon detector. The electronic display is used as the photonic source.

The invention discloses a redundant electronic steering system and control method of an autonomous vehicle. Two electronic power steering units are arranged, wherein each electronic power steering unit comprises a processor, a steering angle and torque sensor and a motor, wherein the steering angle and torque sensor and the motor are correspondingly connected with the processor; the steering angleand torque sensor is used for outputting a torque signal and an angle signal; the processor is also used for calculating a current total torque value K, needing to be output, of the whole system according to a current expected steering wheel steering angle signal, a torque signal and an angle signal and calculating a torque value needing to be output by the electronic power steering unit according to a distribution mechanism; and the processor is also used for controlling the motor correspondingly connected with the processor according to the torque value to control the vehicle to realize steering. According to the redundant electronic steering system and control method of the autonomous vehicle, full redundancy of the electronic steering system is realized, and safety requirements of automatic driving can be satisfied.

A safety mechanism for a laminate battery. An exterior case (5) consists of two molded sheets (5a) made of laminate sheets, superposed upon one another, and bonded together around the outer edges. The exterior case has a protrusion (10) that communicates with the interior of the exterior case and protrudes outwardly from one side. A safety vent (13) is made up of an exhaust hole (11) formed in at lease one of the two molded sheets (5a) in the protrusion (10), and a valve element (12) making elastic pressure contact with the edge of the exhaust hole (11) to seal it. The safety mechanism does not operate within the range of internal pressure variation during normal use, but operates reliably at a time point when a predetermined valve operating pressure is reached to release a necessary amount of gas to the outside, this valve operating pressure being within the safe range relative to the pressure resistance of the exterior case (5) made of laminate sheets. Also, the safety vent configuration enables a reduction in production cost.

The invention is to provide a sheet processing apparatus enabling a piled amount of debris paper scraps in a debris storage box to be detected accurately in a simplified mechanism in performing cutting processing on sheets, and the sheet processing apparatus is provided with an apparatus frame, sheet processing means disposed in the apparatus frame to perform cutting such as punching and trimming on a transported sheet, debris storage box for storing paper debris generated in the sheet processing means, and debris amount detecting means for detecting a debris amount inside the debris storage box, where the debris storage box is supported by the apparatus frame to be able to move to positions between an installation position for storing the paper debris and a non-installation position for removing stored paper debris in an orthogonal direction to a transport direction of the transported sheet, and the debris amount detecting means is formed of a pair of sensors arranged to oppose each other in positions for enabling the sensors to detect a debris amount piled inside the debris storage box present in the installation position in the orthogonal direction to the transport direction of the transported sheet.

A control device for an electric power steering apparatus has a motor which applies a steering assist force and a driving control device which drives the motor, the driving control device has a gate driving circuit which drives a motor driving bridge circuit based on a command from a computer, the power supply portion of the gate driving circuit has a voltage limit unit, and there is provided with a function of driving the lower side driving elements of the motor driving bridge circuit when the voltage limit unit detects the abnormally high voltage of the power supply voltage.

The image reading device comprises a control unit that controls a document-size detection unit to perform the first document-size detection (S13) when a document retainer is detected to be in a predetermined position (S12) and to perform the second document-size detection (S16) when the amount of reflected light measured by a reflected-light amount measurement unit reaches a predetermined value or more (YES in S15) after the first document-size detection, and a document-size determination unit for determining the size of an original document on a document table (S17) from the sizes of the original document obtained through the first and second detections performed by the document-size detection unit.

An antenna device includes a wireless module, a module substrate, and a metal plate. The wireless module includes an antenna element that operates in a millimeter wave band. The module substrate is a multi-layer wiring module substrate on which the wireless module is mounted. The metal plate has a length of 1 / 10 or more of an operation wavelength and is positioned in a vertical direction relative to a plane surface of the antenna element and in a predetermined distance from the antenna element.

A power supply apparatus supports USB-PD (Universal Serial Bus-Power Delivery) specification. A bus voltage VBUS is transmitted via a bus line. A first power supply circuit generates a first bus voltage having a first voltage level. A second power supply circuit generates a second bus voltage having a second voltage level that is higher than the first voltage level. A first switch is arranged between the bus line and an output terminal of the first power supply circuit. A second switch is arranged between the bus line and an output terminal of the second power supply circuit. A control circuit receives a control signal S1 via the bus line from a power receiving apparatus, which is a power supply target. The control circuit is structured to control the first switch and the second switch based on the control signal S1.

A sensing apparatus for detecting a predetermined type of physical information which changes in accordance with an external factor, such as an operation force from the outside or the like, includes a camera, an attachment which includes a subject which changes a state thereof in accordance with the external factor, and a CPU which detects the physical information described above based on image data from the camera. For example, as the subject, a globe is provided which is arranged on a concave surface. Tilting of a case fitted with the attachment causes the globe to move on the surface. The CPU, from the image data, analyzes the position of the globe and detects the inclination of the case.

An acceleration detecting apparatus and occupant protective system using it are provided which can detect acceleration in a wider range with maintaining the high resolution in detecting low acceleration. The acceleration detecting apparatus includes an acceleration sensor for detecting acceleration; and an acceleration correcting section for obtaining when acceleration outside a range detectable by the acceleration sensor is applied, the acceleration outside the range by calculation. The occupant protective system includes, in addition to the acceleration detecting apparatus, an occupant protective apparatus installed in a vehicle; and a driving unit for driving the occupant protective apparatus in response to the acceleration from the acceleration detecting apparatus.

A received RZ-DPSK signal is guided to an interferometer. The interferometer comprises a 1-bit delaying element in an upper arm. A balanced photodiode converts a pair of optical signals output from the interferometer into electrical signal. A high-pass filter, which has a cut-off frequency equal or approximately equal to the symbol rate of transmission data, filters the signal output from the balanced photodiode. A BPSK demodulator circuit demodulates the output signal of the high-pass filter.

A safety mechanism for a laminate battery. An exterior case (5) consists of two molded sheets (5a) made of laminate sheets, superposed upon one another, and bonded together around the outer edges. The exterior case has a protrusion (10) that communicates with the interior of the exterior case and protrudes outwardly from one side. A safety vent (13) is made up of an exhaust hole (11) formed in at lease one of the two molded sheets (5a) in the protrusion (10), and a valve element (12) making elastic pressure contact with the edge of the exhaust hole (11) to seal it. The safety mechanism does not operate within the range of internal pressure variation during normal use, but operates reliably at a time point when a predetermined valve operating pressure is reached to release a necessary amount of gas to the outside, this valve operating pressure being within the safe range relative to the pressure resistance of the exterior case (5) made of laminate sheets. Also, the safety vent configuration enables a reduction in production cost.

An injector driver and a drive method therefor wherein a reference current signal is generated that is synchronized to an injector valve signal for causing the injector to inject and that has a current increasing tendency substantially equivalent to an injector current waveform for the case in which a low voltage is applied to the injector, a current that flows in the injector is detected as a detected current signal, and the electrical powering of the injector is controlled by comparing the reference current signal with the detected current signal.

The invention provides an angular position detector that can be configured at low cost and that accurately detects the angular position of a rotor in a rotary electric device and permits reliable control thereof even when the rotary electric device runs at a high speed. The angular position detector includes a resolver that outputs a signal indicating the rotational angle of the rotor and a signal processing circuit that calculates the rotational angle of the rotor based on the signal output from the resolver. The signal processing circuit samples output signals from the resolver at predetermined intervals and converts the signal into a digital signal. By calculating the angular speed according to the digital signal output from the resolver, the computation process is simpler, and can be performed using a microcomputer with less processing power, which reduces the component costs for the angular position detector.

The invention discloses a redundant electronic steering braking system which comprises two electronic power-assisted steering units, a main braking unit and a slave braking unit. The two electronic power-assisted steering units are used for jointly controlling an automobile to steer. The main braking unit is used for receiving a control command from an automobile bus, calculating the control command and executing result output. The slave braking unit is used for receiving the control command from the automobile bus, calculating the control command and deciding whether result output is executedor not on the basis of a state signal of the main braking unit. The redundant electronic steering braking system can meet the requirement for automatic driving safety.

A low-cost configuration of, and at the same time to control the variable dispersion compensator at a high speed in a variable dispersion compensator for compensating the wavelength dependent accumulated dispersion resulting from the wavelength dependency of the transmission fiber and fixed dispersion compensator in a long-distance high-speed WDM transmission system. In order to achieve the object mentioned above, the wavelength dependent representative characteristic of the transmission fibers 4-1 . . . n, and the wavelength dependent representative characteristic of the DCFs 13-1 . . . n are recorded and maintained in advance in the dispersion control circuit 5-1 . . . n of the variable dispersion compensator 16, and based on the input of dispersion amount at the representative length of the transmission fiber and the fiber length, the dispersion amount at the representative wavelength of the DCF, the accumulated dispersion amount is computed from the wavelength dependent representative characteristic recorded and maintained in advance, and the dispersion amount of the variable dispersion compensator 16 is determined by taking this as the reference.

A wireless communication system and its test method capable of executing a test of the wireless communication apparatus from a remote place by using a terminal generally used in wireless communication systems are implemented with a low-cost configuration and a simple procedure. A terminal obtained by installing a test AP on a general terminal that is used in general wireless communication systems and that can execute APs via a communication network is placed in a coverage area of a wireless communication apparatus. A maintenance center for the wireless communication system activates the terminal. The terminal executes the test AP and conducts communication with the maintenance center by using control signals and test signals for testing wireless communication system. A test is executed by measuring an actual communication state of the wireless communication system.

A folding seat apparatus for a vehicle comprising a slide mechanism for slidably moving a seat in a front-and-rear direction, and a pop-up mechanism for popping up a seat cushion. The slide mechanism and pop-up mechanism are connected to the control lever. The controller controls the actuator so that the control lever rotates in the forward or reverse direction. The pop-up mechanism is unlocked by rotating the control lever in a first direction, and the slide mechanism is unlocked by rotating the control lever in a second direction.

A rotary shaft locking device includes a locking unit having a transmission gear receiving rotary torque from a power source, transmitting rotary torque to a rotary shaft as the transmission gear receives rotary torque from the power source, and locking the rotary shaft as transmission of rotary torque from the power source is cut off, and a first planetary gear and a second planetary gear provided to be meshed with a sun gear and to planetarily move around the sun gear, and displaced between a meshed position and an unmeshed position so as to be meshed with and separated from the transmission gear. The locking unit locks the rotary shaft for a power cutoff time which occurs when the rotation direction of the sun gear is switched and for which the transmission gear is not meshed with both the first planetary gear and the second planetary gear.

A gas-liquid dissolving apparatus includes an intake unit that takes in to-be-treated water from an oxygen-deficient water area, an oxygen-containing gas supply unit, a bottomed gas-liquid dissolving chamber that has at least one hole formed in a lower portion and a top plate provided in an upper portion, a nozzle that ejects the gas supplied by the supplying unit and the water supplied by the intake unit, a gas-liquid separating chamber that has a gas-vent hole formed in an upper portion and a takeout port provided in a lower portion thereof, and a water supplying unit that returns the water taken out from the takeout port to the oxygen-deficient water area.

A data recording system comprises a first memory, a counting unit for counting the number of data writes to the first memory, and an alarm unit for outputting an alarm if the number of data writes to the first memory reaches a first threshold value. The counting unit writes data of the number of writes, which represents the number of data writes to the first memory, to the first memory or a second memory. The alarm unit outputs an alarm based on the data of the number of writes, which is written to the first or the second memory.

A radio tag is arranged in each of a plurality of radio tag areas. The radio tag areas can be parking lots. A radio tag reader is configured to perform radio communications with the radio tags. The radio tag reader performs radio communications with each radio tag and based on the radio communication determines whether an object, which can be a vehicle, is present in the radio tag area corresponding to the radio tag.

A fault-tolerant system including a plurality of modules each further including a CPU subsystem, a fault-tolerant control unit, and an I / O subsystem, wherein the fault-tolerant control unit includes a master FT control LSI chip and at least one slave FT control LSI chip. One module is placed in an active state while the other module is placed in a standby state, so that I / O requests made by CPU subsystems of these modules are selectively delivered to I / O subsystems based on the master / slave relationship. Upon receiving fault information representing a failed subsystem which is either the CPU subsystem or the I / O subsystem found in the module, the master FT control LSI chip sends a command for controlling isolation of the failed subsystem to the slave FT control LSI chip, so that the slave FT control LSI chip controls isolation of the failed subsystem based on the command.

A method of generating a clock includes the steps of calculating a first frequency division number through dividing a frequency of an input clock by a target frequency and a specific integer k (k≧2); calculating a second frequency division number according to the first frequency division number; dividing a period of time of one cycle of the target frequency by the specific integer k to obtain sections in a number of the specific integer k; dividing the frequency of the input clock with the second frequency division number within one of the sections; dividing the frequency of the input clock with the second frequency division number within each remaining one of the sections in a number of (k−1); and generating the clock having a frequency with one cycle equal to a period of time corresponding to each of the sections.