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250results about How to "Constant length" patented technology

Capacitive Position Sensor

A capacitive position sensor comprising a preferably annular sensing path, the sensing path having one or more virtual buttons designated along its length. The sensing path has a plurality of terminals connected to it to subdivide it into a plurality of sections, each terminal providing a sensing channel for a signal indicative of capacitance. The sensing channels provide the signals to a processor, preferably a microcontroller, that is operable to distinguish between a user making a touch to actuate one of the virtual buttons, and a touch to perform a scrolling function. To be determined as a scroll, it is required that there is a succession of detects which span over at least a threshold distance, for example an angular or linear distance. To be determined as a touch, it is required that there is a succession of detects that all lie within one of the pre-assigned virtual button positions.
Owner:ATMEL CORP

Actively controlled wearable orthotic devices and active modular elastomer sleeve for wearable orthotic devices

InactiveUS20150088043A1Limited available potential energyRecovery functionNon-surgical orthopedic devicesProsthesisElastomerGait training
A flexible orthotic device includes two or more active components embedded in a sheet material. Each active component can include a controller and one or more actuation elements controlled by the controller. The two or more active components can communicate with each other and cause the active components to contract and dynamically change the structural characteristics of the orthotic device. By coordinating the motion of two or more active components, the flexible orthotic device can be programmed to assist or resist the motion of a subject wearing the device. The orthotic device can be effectively employed to provide locomotion assistance, gait rehabilitation, and gait training. Similarly, the orthotic device may be applied to the wrist, elbow, torso, or any other body part. The active components may be actuated to effectively transmit force to a body part, such as a limb, to assist with movement when desired. Additionally or alternatively, the active components may also be actuated to provide support of varying rigidity for the corresponding body part. The active components can be actuated to provide specialized learning tasks to enhance exploratory learning.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE

Scanning signal line drive circuit, display device having the same, and driving method for scanning signal line

The purpose of this invention is to increase reliability of a switching element while reducing consumption power. In the vertical blanking period, an end pulse signal (ED) changes from the low level to the high level. The potential of first nodes (N1) in the first stage to (m−1)th stage of cascade-connected m-stage bistable circuits included in a shift register of the scanning signal drive circuit is reliably maintained at the low level, and the potential of second nodes (N2) in the first stage to the (m−1)th stage changes from the high level to the low level. In a bistable circuit in the m-th stage, the potential of the first node (N1) in the m-th stage changes from the high level to the low level, and the potential of the second node (N2) in the m-th stage is maintained at the low level. The supply to a bistable circuit of clock signals (CKA, CKB) is stopped. Until a write period in the subsequent vertical scanning period, the potential of the first node (N1) and the potential of the second node (N2) in each stage are maintained at the low level.
Owner:SHARP KK

Electronic product and rotating shaft mechanism thereof

The invention discloses a rotating shaft mechanism which comprises a rotating shaft group, fixing parts and sliding parts, wherein the rotating shaft group comprises at least two parallelly arranged rotating shafts; the fixing parts are disposed on the two sides of the rotating shaft group; and the sliding parts are used for connecting the rotating shaft group with the fixing parts and at least disposed on one side of the rotating shaft group. When the rotating shafts at the symmetric positions are close to or far away from each other, due to the action of the sliding parts, the distance between the rotating shaft group and the fixing parts changes in the length direction of the rotating shaft mechanism. According to the rotating shaft mechanism, the sliding parts and the fixing parts are additionally arranged on the basis of an original rotating shaft mechanism. The sliding parts and the fixing parts can offset the displacement change generated by the movement of the rotating shafts being close to or far away from each other, it is guaranteed that the length of the outer side of the rotating shaft mechanism is unchanged, and a flexible screen laid on the rotating shaft group and the fixing parts is not stretched or compressed. Therefore, the rotating shaft mechanism can normally cooperate with the flexible screen for use, and the damage to the flexible screen is avoided. The invention also provides an electronic product with the rotating shaft mechanism.
Owner:LENOVO (BEIJING) CO LTD

Switch mode power supply systems

Methods and apparatus for sensing the output current in a switch mode power supply (SMPS) using primary side sensing are described. A module senses a current in a primary winding of a transformer and a voltage on a primary or auxiliary winding of the transformer, and which includes a multiplier coupled to an output of a signal averager averaging a primary winding current and to an output of a timing signal generator using the sensed voltage to signal when a secondary winding is powering an output of the SMPS, to multiply an averaged current sense signal by a fraction of a total cycle period of said SMPS during which the secondary winding is providing power to provide a signal estimating an output current of the SMPS.
Owner:POWER INTEGRATIONS INC

Method and system for preserving security of sensor data and recording medium using thereof

A method and a system for preserving sensor data based on a time key, and a recording medium thereof are provided. The time key based sensor data security preserving method includes encrypting the sensor data with an encryption key obtained using a time key based polynomial derived using random numbers and a secret key which is shared by a sensor node and an application system; and decrypting the encrypted sensor data with a decryption key obtained by deriving the same polynomial as the time key based polynomial using the random numbers and the secret key. Thus, integrity and confidentiality of the sensor data can be preserved.
Owner:KOREA INTERNET & SECURITY AGENCY

Internet access configuration method for WIFI device by checking length of WIFI data packets

The invention discloses an Internet access configuration method for a WIFI device by checking the length of WIFI data packets. The method comprises the step that data information frames used for Internet access configuration are generated, wherein each data information frame comprises a preset fixed character string MAGIC-CODE, the data frame length, an SSID length, an SSID, an encryption type and a password; the data frames can be encrypted through an encryption algorithm negotiated by a configuring party and a configured party, and then the encrypted data frames are sent. In the sending process, the length of the data frames corresponds to the number of sent UDPs, and the length corresponding to each UDP is the numerical value of the corresponding data frame.
Owner:HANGZHOU BROADLINK ELECTRONICS TECH

Liquid-crystal display device and drive method thereof

Provided are a liquid crystal display device and a drive method thereof, capable of promptly making an afterimage, which is visually recognized during pause drive, visually unrecognizable while suppressing power consumption. When updated image data is transmitted, a first refresh is performed by used of this image data, and a refresh pauses based on Ref_int just in the next two-frame period. Then, the second and third refreshes are consecutively performed, and a refresh pause is repeated until the next updated image data is transmitted. In this case, since a refresh can be performed three times in a short period after reception of the updated image data, it is possible to make liquid crystal molecules oriented in a direction corresponding to an applied voltage in a short time and make an afterimage visually unrecognizable.
Owner:SHARP KK

Fabry-perot etalon with independently selectable resonance frequency and free spectral range

The invention relates generally to optical interference filters and interferometers. Methods, devices and device components for optical signal generation and processing using optical interference filters and interferometers are presented. The invention provides optical interference filters and interferometers having a selected cumulative reflectance phase dispersion capable of providing substantially independent selectable resonance frequency and free spectral range. An exemplary interference filter of the present invention provides a multi-peak transmission spectrum with substantially independent, selectable control over absolute transmission band frequencies and relative transmission band spacing. The methods and devices provided herein are particularly well suited for frequency matching optical signals to a selected frequency standard, such as the International Telecommunication Union frequency standard.
Owner:EXCELITAS TECH

Laser Weld Process For Seam Welded Electrochemical Devices

A method for making an electrochemical device enclosure is described. The methods comprises the steps of forming first and second casing members; inserting electrochemically active materials within the first casing member; mating the first casing member to the second casing member, thereby forming an interface therebetween; providing a laser welding apparatus comprising a laser; intermittently turning a laser beam on and off while traversing the laser in a first welding pass 360 degrees along the perimeters of the first and second casing members, thereby forming a first intermittent set of welded and unwelded sections at the interface between the casing members; and intermittently turning the laser beam on and off while traversing the laser in a second welding pass 360 degrees along the perimeters of the first and second casing members, thereby forming a second intermittent set of welded sections at the interface between the first and second casing members. The first and second intermitted welded sections combine to provide a complete hermetic seal around and along the circumference of the casing members interface.
Owner:WILSON GREATBATCH LTD

Grinding tool for edge circular processing

A pair of profile wheels 14, 18 in which concavely shaped grinding surfaces 141, 181 asymmetrical to each other are opposed to each other at right angle so as to form a concavely shaped grinding surface having a substantially semi-circular section, a guide plate 13 which is mounted on a spindle 11 of an electric or air tool side of the profile wheel 14 freely rotatably for guiding a grinding direction by bringing the edge of the circular shaped member into contact with a reference face of a grinding object material and a stopper ring 16 which is mounted to a spindle between the pair of the profile wheels 14 and 18 freely rotatably for controlling a grinding distance Y from the edge by bringing its outer peripheral end face 161 into contact with the edge of the grinding object material, are fixed to the spindle 11 with a lock nut such that they are set at right angle to the spindle.
Owner:SANKYO DIAMOND IND +1

Optical assembly and method

An optical apparatus and method comprising a light source, an array detector for area imaging and an optical cell assembly. The optical cell assembly comprises a chamber which is arranged to receive a sample of a material including an analyte, a fluid inlet and a fluid outlet coupled to the chamber. A fluid dissolution medium stream passes through the chamber such that the sample can dissolve into the dissolution medium. The chamber is in at least one light path created between the light source and the array detector. The array detector comprises a two dimensional array of detector locations arranged to provide an output signal indicative of the light absorbance of the analyte within the chamber such that the output of the array detector is indicative of the concentration profile of the analyte near the surface of the sample.
Owner:PARAYTEC

Printer with sheet reversal mechanism

In a printer provided with a sheet reversing mechanism, and which can perform printing on both faces of a sheet by a common print head, reduction of the number of parts, prevention of a transport failure, and the like are realized by reversing the sheet while the sheet is clamped by one transporting roller pair. The printer includes a first sheet path. A print head is disposed on the first sheet path to perform printing on a recording sheet. A transporting roller pair includes a first roller and a second roller, adapted to transport the recording sheet in a first direction approaching the print head (toward an outlet) and a second direction opposed to the first direction (toward an inlet). A second sheet path is branched from the first sheet path at a branching position shifted from the first roller in the second direction, extending along an outer periphery of the first roller, and joined to the first sheet path at a joining position between the transporting roller pair and the print head. A path switcher is disposed in the vicinity of the branching position so as to be placed at a first position for selecting the first sheet path and a second position for selecting the second sheet path, so that a path of the recording sheet transported in the second direction is switched to the first sheet path or the second sheet path.
Owner:SEIKO EPSON CORP

Method for generating two optical pulses with a variable, time pulse interval

The invention relates to a method for generating two delayed pulses, in particular in terahertz spectroscopy and / or in pump-probe experiments, with the following method steps:generating a pulsed beam using a beam source, in particular a pulsed laser;dividing the pulsed beam, wherein a first partial beam contains a first pulse and a second partial beam contains a second pulse;directing the two pulses onto a respective target area, wherein the first pulse directly reaches a first target area and the second pulse reaches a second target area after covering a delay path, and wherein the two target areas may coincide;using the two pulses, in particular for a measuring method;wherein a time delay of the two pulses in the respective target area is adjustable by means of a pulse repetition rate of the pulsed beam.
Owner:MENLO SYST

Cable-driven manipulator

The present invention discloses a cable-driven manipulator comprising an operating unit having a drive motor, and a pulley rotated by the drive motor. An upper arm is coupled, through a joint, to one side of the operating unit. A forearm coupled, through a joint, to the other side of the upper arm by the cable. A gripper of an end effector operably coupled to the forearm, a cable compensation device is installed between the upper arm and the forearm so as to maintain constant the length of the cable that transmits the power of the operating unit to the end effector during the pivoting of the forearm. It is thus possible to prevent the variation of tensile force due to the variation of the length of the cable for operating the end effector during the pivoting of the forearm or the unintended malfunction of the end effector.
Owner:KOREA ATOMIC ENERGY RES INST

Cutter and Printer

A cutter has a first cutter blade moving mechanism 24 that moves a first cutter blade 21 reciprocally between a forward position 21A where recording paper 3 is cut and a retracted position 21B separated from the forward position 21A; and a second cutter blade moving mechanism 25 that moves a second-cutter blade 22 between a contact position 22A where the paper is cut in contact with the first-cutter blade 21 and a release position 22B separated from the contact position. The second cutter blade moving mechanism 25 sets the second cutter blade 22 to the release position 22B before the first cutter blade moving mechanism 24 moves the first cutter blade 21 from the forward position 21A to the retracted position 21B. Wear and noise can be prevented because the two cutter blades 21, 22 do not contact after cutting the recording paper 3.
Owner:SEIKO EPSON CORP

Multiple wheel vehicle

ActiveUS20110254238A1Improve camber thrustImprove cornering propertyCyclesCycle standsGround contactCircular surface
A multiple wheel vehicle according to the present invention enables to incline freely the two wheels together with the vehicle body while keeping the ground contacting pressures of the two wheels equal. The multiple wheel vehicle comprises a pair of swinging arms 4 each comprising one-side end portion supported pivotably with right and left support shaft portions 3A and an interlocking device 6 for interlocking them alternately up-and-down. The interlocking device 6 comprises a pair of tilted members 17, a divertible member 19, and a cord-like body 20 connecting them. Each of the tilted members 17 comprises a first circular surface part 21 that has a center of a circular arc as a shaft center 3i of the support shaft portion 3A, and tiltably supported integrally with the swinging arm 4. The above-mentioned divertible member 19 is provided on the right and left and on one-side and another-side with one-side and another-side second circular surface parts 26 which has a center of the circular arc as a second shaft center 18i which is in the direction perpendicular to each of the above-mentioned first shaft centers 3i, respectively. The above-mentioned cord-like body 20 comprises one-side cord-like part 20L connecting the first and second circular surface parts 21 on the one-side and other-side cord-like part 20R connecting the first and second circular surface parts 21 on the other-side.
Owner:KANOU KINYA

Adjustable socket

An adjustable socket having first and second jaw members having manually selectable sizes. An exterior drive unit and a moveable inner driver unit each having serrated interlocking teeth are positioned to either engage during wrenching, or to be disengaged for socket size manual adjustments. The opposing first and second jaw members are forced by axial rotation of a spiral cam element located on the open top end of the outer drive unit to move laterally, inward or outward, when a user pulls the inner driver unit in a first direction and rotates the inner drive unit such that the first and second jaw members are positioned to engage a selected fastener head.
Owner:CARNESI THOMAS

Gear for eliminating backlash

Disclosed herein is a gear for eliminating backlash. The gear includes a rotating shaft having a hollow portion. A first gear is connected to an end of the rotating shaft to be rotated in sync with the rotating shaft, and has on a central portion thereof a connecting protrusion which protrudes forwards. A hole is formed so as to communicate with the hollow portion of the rotating shaft, and a pair of first mounting holes is formed in the first gear along an arc thereof. A second gear is rotatably connected to the connecting protrusion of the first gear and has the same teeth as teeth of the first gear. A cylinder is provided in each of the first mounting holes and connected at both ends thereof to the first gear and the second gear, thus rotating the second gear in one direction. A locking cap is provided on an end of the connecting protrusion of the first gear to prevent the second gear from being eliminated from the first gear.
Owner:DOMINIE INVESTMENT

Seat belt restraint and energy absorber

The invention relates to a vehicle occupant restraint system comprising a belt extending from two effective belt guides (4) located on each side of a seat (2) and which when fastened around an occupant (1) has a belt configuration defined by at least two effective side positions (P) where the belt emerges on each side of the seat, wherein said effective belt guides (4) are arranged to be movable upon acceleration of the occupant (1) in relation to the seat (2) in a crash situation so as to accomplish a forward displacement of the effective side positions (P) in relation to the seat (2) for altering the belt configuration from a crash restraint configuration to a ride down configuration.
Owner:FORD GLOBAL TECH LLC

Cam rope drive robotic fishtail swing device with shaft replacement door type mechanism

The invention discloses a cam rope drive robotic fishtail swing device with a shaft replacement door type mechanism. The device comprises the shaft replacement door type mechanism, a door frame A, a door frame B, a disc-shaped cam drive mechanism, springs and pull ropes. The door frame A is installed on one side of the shaft replacement door type mechanism and the door frame B is installed on the other side of the shaft replacement door type mechanism. The springs and the pull ropes are installed on the two sides of a first door. Under the condition that a direct-current motor drives a disc-shaped cam to rotate, the profile of a flange of the disc-shaped cam makes contact with a sliding block B sleeved with the corresponding pull rope, meanwhile, the profile of a base circle of the disc-shaped cam does not make contact with a sliding block A sleeved with the corresponding pull rope, and therefore the first door swings in a reciprocating manner under the effect of a sliding bearing. By the adoption of the device, the variable structure of the disc-shaped cam is combined with the springs and the pull ropes, so that rotary shaft movement of the shaft replacement door type mechanism is achieved. By the adoption of the device, a complex robotic fish fin control problem is converted into a structure and appearance design problem of the disc-shaped cam, so that the complexity of a robotic fish control system is effectively reduced.
Owner:BEIHANG UNIV
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