475 results about "Head rotation" patented technology

The wireless sensor network with energy efficient protocols includes a network of external sensors in communication with a data sink. The network utilizes an algorithm integrating a modified S-MAC (an algorithm for medium access control) protocol for decreasing energy usage in operating the node and associated sensors. A routing protocol is further integrated into the algorithm, the routing protocol being based upon cluster head rotation.

An above-ground sprinkler may have a head that rotates about an angle determined by the relative angles between a pair of arc adjustment rings. Rotation of the head may be driven by a drive mechanism with a rotor rotationally driven by fluid flowing to the head. The drive mechanism may have a valve disposable in two positions to control flow to the rotor to determine the direction in which the rotor rotates. A reduction gear drive may transmit torque from the rotor to the head to cause the head to rotate. The head may have a cover with an outlet aperture and a flow control member that rotates within the cover to dispose any of a plurality of nozzles in alignment with the outlet aperture. A deflection screw or a slider with a plurality of deflectors may be used to provide variable deflection of water sprayed from the outlet aperture.

A method includes determining, at a first time, a representation of a first head rotation of a head mounted display (HMD) using a first inertial sensor sample stream and rendering, at an application processor, a texture based on the first head rotation. The method further includes determining, at a second time subsequent to the first time, a representation of a second head rotation of the HMD using a second inertial sensor sample stream having a higher sampling rate than the first inertial sensor sample stream, and generating, at a compositor, a rotated representation of the texture based on a difference between the first head rotation and the second head rotation.

An accessory for a cleaning appliance includes a head having a housing, a downwardly-directed suction opening in the housing and a neck adapted for attachment to a hose or wand of the cleaning appliance. A rotatable connection is provided between the neck and the head for allowing rotation of the neck relative to the head. A wheel arrangement maneuverably supports the accessory on a surface to be cleaned and is mounted on the neck of the accessory. The wheel arrangement may normally be in contact with the surface to be cleaned, but the point or points of contact between the wheel arrangement and the surface to be cleaned are dependent upon the rotational position of the neck with respect to the head.

The embodiment of the invention discloses an image processing method, a head-mounted display (HMD) and rendering equipment. The method comprises the following steps: sending the gesture information of the HMD at the first moment to the rendering equipment; receiving the video data from the rendering equipment, wherein the video data contains the image data that is rendered according to the gesture information; obtaining the gesture information of the HMD at the second moment, wherein the second moment is later than the first moment; and adjusting an image indicated by the image data according to the information difference between the gesture information at the second moment and the gesture information at the first moment to obtain an adjusted image for display. By adopting the image processing method, the HMD and the rendering equipment disclosed by the embodiment of the invention, the rendering image data obtained by the rendering equipment based on the gesture information at the first moment is adjusted by the HMD, and the gesture information at the second moment for adjustment processing does not need to be sent to the rendering equipment so as to ensure that the adjusted image data can be matched with the head rotation, and the picture drawing delay caused by the scene changes due to the head rotation can be eliminated.

A device to improve the feedback to the golfer relative to the rotation of the club head and thus provide valuable feedback to the golfer on the rate and timing of the club head rotation to golf ball impact is disclosed herein. The device is a training and practice aid to accomplish such auditory feedback.

Maternal and fetal birthing simulators are disclosed. The maternal simulator has a rotatable pelvis, legs articulated at the hip and knee joints, and a deformable covering that simulates the feel of the skin and underlying tissues. The maternal birthing simulator may optionally be used with a pressure-based uterine propulsive system. The fetal simulator has an extensible spine, a movable head, movable clavicles, and arms articulated at the shoulder and elbow joints, and may include sensors to measure spinal extension, head rotation, applied traction force, and brachial plexus displacement. Fetal brachial plexus strain simulators and simulation methods are also disclosed.

The invention provides a liveness detection method and system for face recognition on a mobile platform. The method includes the following steps that: a facial video containing of user photos at different angles as well as motion acceleration and rotation data of a mobile device in video recording are captured; the feature information of the correlation of head pose vector data and device movement vector data in the video are calculated and extracted; and whether the detected video is a real face or a face counterfeited from photos/videos is distinguished through a classifier. With the liveness detection method and system of the invention adopted, a face recognition-based identity recognition application on the mobile platform can resist photo and video-based spoofing attacks, and hardware devices which most mobile devices are not provided with are not needed to be adopted. The method and system have robustness for complex light conditions and can tolerate head rotation of the user in a use process.

Maternal and fetal birthing simulators are disclosed. The maternal simulator has a rotatable gynecoid pelvis, legs articulated at the hip and knee joints, and a deformable covering that simulates the feel of the skin and underlying tissues. The maternal birthing simulator may optionally be used with a pressure-based uterine propulsive system. The fetal simulator has an extensible spine, a movable head, movable clavicles, and arms articulated at the shoulder and elbow joints, and may include sensors to measure spinal extension, head rotation, applied traction force, and brachial plexus displacement.

A rotational, shear mode, piezoelectric motor is integrated with a suspension, head or head gimbal assembly (HGA) into a collocated, rotational, shear mode, piezoelectric micro-actuated suspension, head or head gimbal assembly (HGA) for use in disk drives and disk drive manufacturing equipment. When excited by a control voltage, the collocated, shear mode, piezoelectric micro-actuated HGA rotates the head enabling high frequency, high resolution track positioning of the read/write element. The motor is integrated with the head and flexure (collocation). The head rotates about a rotation axis that is ideally located at the center of mass of the head. A shear mode piezoelectric motor rotates the head. A collocated, rotational, shear mode, piezoelectric micro-actuated HGA has high stiffness, high frequency response, high positioning resolution, low mass and low internal vibration for improved tracking, increased track density and greater disk drive storage capacity. Furthermore, its solid integration improves shock resistance and reduces micro-contamination.

The invention relates to a Chinese medicine thermal therapy fumigation double use therapeutic device, and belongs to the technology field of medical apparatus and instruments. The Chinese medicine thermal therapy fumigation double use therapeutic device comprises a hidden type battery box, a thermal therapy washing box and a temperature adjustment fumigation box, wherein a three way connector is arranged on the upper side of the hidden type battery box, a suction flushing pump is arranged in the thermal therapy washing box, a circulation flushing mouth is arranged on the left side of the suction flushing pump, a stir-welding head motor is arranged on the lower side of the suction flushing pump, a transmission shaft is arranged on the lower side of the stir-welding head motor, a liquid medicine stir-welding head is arranged on the lower side of the transmission shaft, a temperature sense chip is arranged on the left lower side of the thermal therapy washing box, an atomization head rotation ring is arranged in the temperature adjustment fumigation box, an atomized medicine sprayer is arranged on the atomization head rotation ring, an ultrasonic wave atomization chip is arranged on the lower side of the injector head rotation ring, and a fumigation pipe storage box is arranged on the right side of the temperature adjustment fumigation box. The Chinese medicine thermal therapy fumigation double use therapeutic device has complete functions, is convenient to use, and simple and convenient to operate when used for fumigating and flushing thermal therapy on a patient, saves time and labors, and reduces work difficulties of medical personnel.

A swivel castor assembly, includes a body having at least one rotatable wheel engageable with a floor or ground surface below the body, a brake actuable to brake or prevent rotation of the wheel, and an element for mounting the body such that it is able to swivel about a generally upright axis. A head is adapted to be mounted to prevent or restrict its rotation about the upright axis. A brake activator is mounted to the head for movement between a braking position in which it activates the brake, a neutral position in which the brake is inactive and the body is not prevented from swivelling about the upright axis, and a direction-lock position in which the body may be swivelled to one of plural selectable orientations with respect to the head at each of which the body is locked against swivelling but the brake is inactive.

A fastener assembly including a stud and plate combination is disclosed for fastening a first member to a second member. The assembly comprises a stud which includes a shank having a first and a second end. A head extends from the first end of the shank, the head defining a surface which is disposed adjacent to the first end of the shank. A plate has a first and a second face, the plate defining a slot for the reception therein of the head of the stud. The arrangement is such that when the head is inserted through the slot and is rotated relative to the plate, the first face of the plate slidably cooperates with the surface of the head. The head and the plate are configured and adapted in such a manner that when the head is rotated to the plate, the stud is securely fastened to the plate, thereby allowing the first member to be attached to the second member.

A trimmer head for use with a length of flexible cutting line in a rotary trimmer comprising a housing operatively connected to the trimmer to effect rotation of the head and a spool for carrying the cutting line thereon. The spool is operatively connected to the housing for rotation therewith and defines a line receptor channel having opposed open ends and traversing the spool. The channel can be aligned with the eyelets in the housing skirt such that cutting line can be inserted therethrough and wrapped about the spool upon relative rotation of the spool and housing without having to interrupt the operative connection therebetween. A central portion of the channel intermediary its open ends is exposed to provide access to the portion of line therein so that line wound about the spool can be pulled from the head without having to interrupt the operative connection therebetween.

A watering wand includes a long tube and a connection frame connected to an end of the long tube, a rotatable member and a head are connected to the connection frame. A connection member and a guide tube are connected to the other end of the long tube. The guide tube has a moving piece movably received therein and the moving piece includes a radial extension which is movably engaged with an axial slot. defined in the guide tube. A sleeve with a spiral groove is mounted to the guide tube and the radial extension is movably engaged with the spiral groove. A link has an end thereof fixed to the rotatable member and the other end of the link is fixed with the moving piece, so that when rotating the sleeve, the link is pulled to rotate the rotatable member such that the head is rotated. A watering nozzle is connected to the head and is able to water different positions by simply rotating the sleeve.

The present invention provides a clamp body having a transverse surface and a threaded opening therein, a threaded bolt threaded through the opening, the bolt having a head at one end region and a saddle at an opposite end region, the saddle configured to clamp against a pipe, a locknut threaded on the bolt, the locknut adapted to being rotated on the bolt against the head with a predetermined amount of torque, the predetermined amount corresponding with a pre-determined force to be applied by the saddle against the pipe.