52results about How to "Shorter spacing" patented technology

An access method for periodic contention-free sessions (PCFS) reduces interference between overlapping first and second wireless LAN cells contending for the same medium. Each cell includes a respective plurality of member stations and an access point (AP) station. The access method for periodic contention-free sessions (PCFS) includes a fixed cycle time that reduces conflicts with PCFS from other cells. The PCFS from several cells are repeated in cycles of cycle period (CP), which is the contention-free period (CFP) of an access point times a factor that is a function of the number of overlapping cells. Periodic contention-free sessions (PCFSs) are generated, one from each overlapping cell. PCFS transmission attempts occur at the fixed specified time spacing following the start of the previous cycle. Each active AP sets a timer at CP and a PCFS is initiated when the timer expires. The timer is then reset to CP and this starts a new cycle. Contention transmissions are attempted by stations based on their assigned priority. If a channel is busy at the designated start time for transmitting a PCFS, the PCFS is shortened by the time lost. Interleaving PCFSs and CFSs reduces conflicts with CFSs from other cells. To lessen the contention between APs of different cells, each station's Network Allocation Vector (NAV) and Inter-BSS Network Allocation Vector (IBNAV) is updated by an increased value of the next CFS length, the increment being the inter-BSS contention period (IBCP). APs will attempt to access the channel during the IBCP only for transmitting a PCFS, while they will wait for the NAV and IBNAV expirations before attempting to transmit a CFS. Interleaving PCFSs and CFSs also enables maintaining quality of service (QoS).

A bottom hole assembly 10 for drilling a deviated borehole includes a positive displacement motor (PDM) 12 or a rotary steerable device (RSD) 110 having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing 14 may have a fixed bend therein between an upper power section 16 and a lower bearing section 18. The long gauge bit 20 powered by the motor 10 may have a bit face 22 with cutters 28 thereon and a gauge section 24 having a uniform diameter cylindrical surface 26. The gauge section 24 preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and / or rotation of the RSD from the surface.

The plant cultivation system includes: a circulatory system including axises installed in a corresponding portion of a frame installed in a cultivation room; chain gear axis-installed in the axises respectively; a left and a right chains; and a deduction motor connected and installed onto any axis of the axises; cultivating pot members including a can body, and a hook plate, fixed to left and right ends of the upper surface of the can body; and for moving and circulating in the inner space of the cultivation room by rotatably installing as hanging between the left and a right chains by the left and right hook axises and the hook plate; a medicinal fluid supplier; and an air blower, installed in the cultivation room.

Provided a practical planar antenna device which has antenna elements facing each other, in which electrical power is fed between the antenna elements. The first feeding point is provided near an end of the first antenna element, which faces the opposite antenna element. The second feeding point is provided near an outer end of the second antenna element, by providing a second slit longer than the distance from the end of the second antenna element to its center. Since the feeding points are provided at the same level, the same electric field is excited in the two antenna elements in phase. The planar antenna device, to which electrical power is fed from the facing sides of the pair of opposite antenna elements, saves a bend conventionally required in a feed line, thereby allowing a wiring area to be smaller than in the conventional method.

A maintenance apparatus for a nozzle surface in which a plurality of nozzles ejecting a liquid are formed, in an ejection head having a nozzle row in which the nozzles are aligned in a main scanning direction, has: a liquid storage member which is disposed in a position opposing the nozzle surface of the ejection head at a prescribed distance from the nozzle surface, and which has a liquid holding surface which has a length, in a sub-scanning direction perpendicular to the main scanning direction, corresponding to a length in the sub-scanning direction of a region in which the plurality of nozzles are provided; a liquid supply device which supplies a liquid to the liquid holding surface; a movement device which moves the liquid storage member through a whole length of the nozzle row in the main scanning direction, while bringing the liquid held on the liquid holding surface into contact with the nozzle surface; and a wiping device which wipes the nozzle surface that has been wetted by the liquid supplied to the liquid storage member, while moving subsequently to the liquid storage member, to remove adhering material attached to the nozzle surface.

A printer 10 is arranged to include a pay-out section 12 for a strip of label sheet M having label base LB, a printing section 14 for printing on the surface of the label base LB, a film feeder 16 for supplying a protective film F and a sticking section 18 for sticking the protective film F to the label base LB. The sticking section 18 comprises a press roll 50 and a platen roll 51, the press roll 50 is arranged to include a soft member 54 on the peripheral portion of the roll body 52 and cutter blades 55A, 55B. The sticking section 18 sticks the protective film F as well as forms a cut C in the label sheet M and the protective film F corresponding to the configuration of the label L.

A milling tool for slot milling includes a tool body and a plurality of separated first seats, which form root insert seats for root inserts arranged one after the other along a first line and a plurality of separated flank insert seats that includes a plurality of second seats for flank inserts . The plurality of second seats is arranged one after the other along a second line on a primary side of the root insert seats. A plurality of third seats for flank inserts is arranged one after the other along a third line on a secondary side of the root insert seats. Each flank insert seat includes a bottom surface, an inner side surface, and an outer side surface. Each flank insert includes an under side, an opposite upper side, and a circumferential edge side that forms a rake face connecting the upper side and the underside.

The present invention is directed to a heat exchanger for an automotive vehicle. The heat exchanger includes a first end tank divided into a first portion and a second portion by a baffle, the first end tank including a through-hole.The baffle system includes a baffle or baffles with a central portion and at least one flanged peripheral portion, the flanged peripheral portion having a peripheral channel. Additionally, the baffle preferably is disposed within the end tank so that the peripheral channel is substantially juxtaposed with the through-hole in the end tank for providing a visual leak indicator.

An ion spectrometer is provided, comprising: an ion source, arranged to generate ions continuously with a first range of mass to charge ratios; and an ion trap, arranged to receive ions from the ion source along an axis, and to eject ions with a second range of mass to charge ratios orthogonally to that axis, the second range of mass to charge ratios being narrower than the first range of mass to charge ratios. In some embodiments, ions generated by the ion source continuously flow into the ion trap. Additionally or alternatively, ion optics receive ions ejected from the ion trap and cool the ions without substantial fragmentation. An ion analyser receives ions ejected from the ion trap or ion optics and separates the ions in accordance with at least one characteristic of the ions.

This optical disc drive has an optical pickup head that emits a light beam to an optical storage medium, detects the light beam reflected from the optical storage medium, and outputs a signal based on the received reflected light; a jitter measuring unit for measuring jitter in signals output from the optical pickup head; and an evaluation unit for determining from the measured jitter if the optical storage medium is good or defective. The jitter measuring unit measures jitter in a train of 3T or longer marks or spaces from an optical storage medium to which digital information is recorded as a train of marks or spaces of length kT based on a period T and an integer k of two or more.

The invention relates to patient breathing circuit for use in anaesthesia or respiratory care, the patient circuit comprising a gas source for creating gas mixture for patient breathing and circulating arrangement for delivering the gas mixture to the patient. The circulating arrangement comprising inspiration (9) and expiration tubes (8) through which gases flow to the patient and from the patient, the inspiration and expiration tubes (8,9) having machine ends and patient ends and the tubes (8,9) being provided with a Y-piece (12) at the patient end of the tubes enabling the flow of gases from the inspiration tube (9) to the patient (1) and from the patient (1) to the expiration tube (8). The Y-piece (12) is provided with a flow measuring sensor (2) having pressure lines (3) connected to the measuring device. The pressure lines (3) are arranged to run inside of an outer wall surface of the flow measuring sensor (2).

In a magnetic resonance imaging apparatus and a method for operating the apparatus, a trueFISP sequence is used, but is modified to employ non-selective, rectangular radio frequency pulses. The use of non-selective excitation pulses reduces the sensitivity to off-resonance and allows excitation to be achieved in a shorter time compared to selective excitation, thereby shortening the time between echoes and minimizing slice profile issues.

The present invention relates to an optical recording medium including a recording layer in which major information and sub-information are recorded, wherein the sub-information is recorded with the use of a long-wavelength laser light having a wavelength longer by 30 nm or more than a short-wavelength laser used to record the major information, and an area where the sub-information is recorded has a level of absorbance of the long-wavelength laser light of 0.05 or more. The invention also relates to an information recording method using the optical recording medium including a recording layer in which major information and sub-information are recorded, wherein the major information is recorded with the use of a short-wavelength laser light having a wavelength of 500 nm or less, and the sub-information is recorded with the use of the long-wavelength laser.

A defence system for a land area, intended as an alternative to land mines. The system includes sensors for detecting intrusions in the area, a weapon having multiple barrels and multiple projectiles ready for firing, and a controller that receives signals from the sensors to fire the weapon. The controller preferably requires intervention of an operator in order to trigger the weapon. The weapon may contain a range of projectiles for different purposes.

A visible laser beam scanned by a galvano-scanner system is aligned at each of positioning points on the top surface of a master work by manual operation to record sensor position signals of position sensors on galvano-scanners. The sensor position signals on each positioning point are recorded to create a drive pattern in accordance with recorded sensor position signals. The drive pattern no longer has optics system error sources including focus error and attachment error as well as errors caused by scale, offset and the like, also eliminating the need for entering a distance as far as the top surface of the work. Therefore, the drive pattern with error components removed can be created with ease.

This invention relates to a monitoring method and system for monitoring the dispensing of medicaments in a hospital from a portable medicament dispensing station. The medicament dispensing station 3 has a first identification means 9 and a second identification means 13 for capturing identifiers relating to an individual wishing to dispense a medicament. A releasable locking mechanism 23 is provided that will allow dispensing of medicaments on appropriate identifiers being captured and authenticated. The identifier data is transmitted to a monitoring unit 5 over a communications network 8 and is stored in a remote monitoring unit memory 7 for future reference. By implementing such a system and method, tampering with the data input to the system is obviated and traceability and accountability are facilitated.

An ion spectrometer is provided, comprising: an ion source, arranged to generate ions continuously with a first range of mass to charge ratios; and an ion trap, arranged to receive ions from the ion source along an axis, and to eject ions with a second range of mass to charge ratios orthogonally to that axis, the second range of mass to charge ratios being narrower than the first range of mass to charge ratios. In some embodiments, ions generated by the ion source continuously flow into the ion trap. Additionally or alternatively, ion optics receive ions ejected from the ion trap and cool the ions without substantial fragmentation. An ion analyzer receives ions ejected from the ion trap or ion optics and separates the ions in accordance with at least one characteristic of the ions.

In a magnetic resonance imaging apparatus and a method for operating the apparatus, a trueFISP sequence is used, but is modified to employ non-selective, rectangular radio frequency pulses. The use of non-selective excitation pulses reduces the sensitivity to off-resonance and allows excitation to be achieved in a shorter time compared to selective excitation, thereby shortening the time between echoes and minimizing slice profile issues.

A milling tool for slot milling includes a tool body and a plurality of separated first seats, which form root insert seats for root inserts arranged one after the other along a first line and a plurality of separated flank insert seats that includes a plurality of second seats for flank inserts . The plurality of second seats is arranged one after the other along a second line on a primary side of the root insert seats. A plurality of third seats for flank inserts is arranged one after the other along a third line on a secondary side of the root insert seats. Each flank insert seat includes a bottom surface, an inner side surface, and an outer side surface. Each flank insert includes an under side, an opposite upper side, and a circumferential edge side that forms a rake face connecting the upper side and the underside.

The invention concerns a drive arrangement of a lifting gear and / or a traveling gear, with a pole-reversible rotary-current motor with windings for at least two different actuating speeds, with a pole switching element connecting the rotary-current motor to a voltage supply for changing between the actuating speeds of the rotary-current motor. In order to create a drive arrangement of a lifting gear and / or a traveling gear with a rotary-current motor, whose switching behavior is optimized in relation to the actuation of the rotary-current motor, it is proposed that a power switching element (3) be hooked up in front of the pole switching element (5), and it can be separated from the voltage supply via the power switching element (3) for the pole switching process of the rotary-current motor (2).

The invention provides for a system and method of cleaning a plasma coating torch, wherein the method comprises subjecting a plasma coating torch to a cleaning agent in order to removed spray material particles which have adhered during coating with the plasma coating torch and during said subjecting, the cleaning agent exits a nozzle and, upon exiting the nozzle, directly changes to a gaseous state from either a solid state or a liquid state.