248results about How to "Constant length" patented technology

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.

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.

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.

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.

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.

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.

A blood treating set, including a blood collecting device and a blood treating device, the blood collecting device further including a first bag for storing collected blood, a tube for guiding blood into the first bag, and a tube for discharging blood from the first bag. The blood treating device further includes a connected bag body having three bags, that are, a second bag for storing haematosis, a third bag, and a fourth bag. These bags are connected to each other through the tubes and a branch connector. Also, the tube connected to the second bag includes a filter installed midway in the tube. On the tube connected to the first bag and the tube connected to the filter, indications (markers) are placed at positions to show where these portions must be connected.

Apparatus, assemblies, systems, and methods for inserting a snare into a body and capturing objects. A surgical snare device includes a steerable deflection portion with a steerable distal tip. An interface is linked to the steerable deflection portion to selectively manipulate the distal tip. A snare loop disposed at the distal tip can have a length that remains substantially constant as the distal tip is deflected and the snare loop moves in concert with the distal tip. A snare loop having a width larger than an internal width of the body lumen may be collapsed using a loop collapsing mechanism that reduces the width of the snare loop prior to, or during, insertion of the snare loop into the body lumen.

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.

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.

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.

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.

An image forming apparatus includes a photoconductor, a cleaning device, and a toner transporting device. The photoconductor has a toner image formed thereon. The cleaning device removes toner remaining on the photoconductor. The toner transporting device transports the toner removed by the cleaning device. The toner transporting device includes a first toner transport path forming member, a first toner transporting member, and a length control member. The first toner transporting member is partly provided in the first toner transport path forming member, expands and contracts in a length direction thereof, and transports the toner through the first toner transport path forming member. The length control member is provided at a downstream end of the first toner transport path forming member, and is pressed against the first toner transporting member to keep a constant length of the first toner transporting member. An image forming method is also described.

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.

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.

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.

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.

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.

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.