481 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.

Embodiments of the present invention provide a collaborative visualization system, which integrates motion capture and virtual reality, along with kinematics and computer-aided design (CAD), for the purpose of, for example, validating a simulation with a real-world video. A spherical camera captures real-world video at a first location. At a second location, one or more head-mounted display devices display the captured real-world video and also display a simulation corresponding to the real-world video. A motion capture system captures head rotation information for one or more users to thereby to control a pan, tilt, and zoom of the real-world video so that when a position of a user's head changes, the portion of the real-world video displayed in the head-mounted display changes accordingly. Upon user input, a computer program product selects between displaying the real-world video and the simulation in the head-mounted display.

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.

The invention discloses a panoramic video playing method and a panoramic video player, and aims to solve the problem of playing of panoramic videos on head-mounted display equipment and realize true 360-degree video experience instead of plane angle experience for a user. Through adoption of the video playing method and the player, an enclosed space can be constructed for the user, and panoramic video frame images are mapped into the enclosed space at 360 degrees as textures. The user wearing the head-mounted display equipment feels like being inside the enclosed space, and a viewing angle can be switched by ways of head rotation and the like, so that the charm of the panoramic videos is felt truly.

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.

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.

A screeding machine including at least one of (a) a boom speed cruise control for automatically controlling the travel speed of the screed head assembly, (b) an auto-stabilizer control that automatically adjusts the stabilizer actuators of the screeding machine to a preselected degree of extension, (c) a control for automatically controlling the lowering of the screed head assembly toward and to the concrete surface and automatically activating the auger and vibrator at a beginning of each screeding pass and automatically deactivating the auger and vibrator in response to the screed head assembly being raised away from the concrete surface at the end of a screed pass, and (d) an auto-screed mode that allows the operator to select maximum values for at least one of a boom extension speed, a boom retraction speed, a boom rotation speed and a screed head rotation speed.

A hammer with integral lever mechanism is disclosed, comprised of a traditional handle and claw head. To increase leverage during nail removal and enable the user to remove longer nails with speed and ease, a lever is incorporated into the design of the device. The lever is T-shaped, and in its resting position is located inside of the head, so as to not interfere with use of the device when the lever is not needed. The lever can be rotated relative to the head by depressing a lever release button, to aid in nail removal . The lever is of ratchet style configuration, allowing the user to position the lever in a multitude of locations relative to the head, to assist in removing nails of various lengths. The lever is capable of being locked into position relative to the head at each of the lever's possible positions. A hand guard and finger grips permit the user to maintain a firm hold on the handle during use, thus reducing risk of injury. A retractable tape measure is incorporated into the design of the handle.

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.

The invention discloses a method for realizing head rotation of a robot by face detection. The method comprises: a control system is started, target face information is set, and a camera is turned on; the camera rotates to obtain an image and feeds back image information to a control system, and the control system reads image information; the control system identifies whether a target face exists in the image; if so, the control system obtains a target face position and the head of a robot rotates with movement of the face; and if not, the camera obtains an image again. The method and apparatus have the following beneficial effects: a robot with following head rotation is realized by face detection; and when a user moves towards a certain direction at a certain angle, the head of the robot rotates with the user. During the using process, the robot can face the face of the user directly; and a defect that some existing robots with stiff movements lack of flexibility and interaction can be overcome, so that the fun of the robot and the user can be increased substantially.

The invention pertains to a method of and apparatus for interactively tracking, analyzing and teaching a correct golf swing. A computer with an attached video camera and display monitor is used to superimpose patterns on the monitor over the golfer's live background image that represent the ideal golf swing. Orbit patterns that are calibrated for each individual golfer are displayed as tracks to facilitate club movement that is geometrically correct. Points along the orbits further serve as reference points for analysis of the correct three dimensional shaft direction, club head rotation and body position. A spherical attachment below the club grip focuses the golfer's efforts to move the sphere within the orbits and enhances the computer's ability to uniquely correlate its patterns to the club's position, shaft direction and club face rotation. The computer independently interacts with the golfer using audio and visual means to provide instantaneous prompts and analysis during the swing, assigns a handicap rating and displays the predicted ball flight.

The invention discloses a face detection tracking method and device and a robot head rotation control method and system. The face detection tracking method comprises the following steps: collecting an image and carrying out depth detection processing on the image, and obtaining a depth value of each pixel point in the image; determining a human face candidate area according to the depth value of each pixel point of the current frame image; carrying out face detection on the human face candidate area to determine a human face frame of the current frame image; and according to the human face frame of the current frame image and a tracking human face frame, determining a tracking frame of the current frame image, and carrying out tracking on the human face in the tracking frame of the current frame image. The face detection tracking method facilitates reducing mis-detection rate and improves face detection accuracy. The robot head rotation control method adopts the face detection tracking method to carry out face detection, thereby facilitating guaranteeing smoothness of the robot head rotation process, and preventing the clamping phenomenon in the rotation process.

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 pertains to a method of and apparatus for interactively tracking, analyzing and teaching a correct golf swing. A computer with an attached video camera and display monitor is used to superimpose patterns on the monitor over the golfer's live background image that represent the ideal golf swing. Orbit patterns that are calibrated for each individual golfer are displayed as tracks to facilitate club movement that is geometrically correct. Points along the orbits further serve as reference points for analysis of the correct three dimensional shaft direction, club head rotation and body position. A spherical attachment below the club grip focuses the golfer's efforts to move the sphere within the orbits and enhances the computer's ability to uniquely correlate its patterns to the club's position, shaft direction and club face rotation. The computer independently interacts with the golfer using audio and visual means to provide instantaneous prompts and analysis during the swing, assigns a handicap rating and displays the predicted ball flight.

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 trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one inwardly extending line receptor channel defining surface irregularities therein for securely gripping the cutting line upon an end portion of the line being inserted in the channel and the spool rotated with respect to the housing. The channel is preferably tapered inwardly to hold different line sizes. To provide uniform winding of the line about the spool, the operative connection between the spool and the housing effects relative reciprocal motion therebetween when the spool is manually rotated relative to the housing.

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 universal air pump includes a pump; a head mounted to the pump and having a central hole and an air inlet at a side wall thereof; a cylindrical block pivotably fitted in the central hole of the head and having a central chamber, an annular channel on an outer surface thereof, which faces to the air inlet of the head, and at least one air hole defined through an underside of the annular channel and communicating with the central chamber; a fixing seat having a stub tube engaged with the central chamber of the cylindrical block, and an axially-extended through hole communicating with the central chamber; and an air delivery tube mounted to the fixing seat and communicating with the axially-extended through hole. Thus the air delivery tube can rotate relative to the head so as to allow the air pump to be operated at any angle.

The invention provides an image compensation device for an open hole stereoscopic display and a method thereof. The image compensation device comprises a detection unit, a compensation unit and a stereoscopic image representation unit, wherein the detection unit is used for detecting the position coordinates and the head rotation angle of a viewer; the compensation unit is used for adjusting the width of each image frame according to the position coordinates and the head rotation angle so that the site between the eyebrows between human eyes is located at the border of adjacent image frames; the stereoscopic image representation unit is used for forming corresponding stereoscopic images and displaying the images on a screen according to the width of the image frames after being adjusted. Compared with the prior art, the image compensation device disclosed by the invention can solve the problems of bad image crosstalk and 3D (three-dimensional) result when the head of the viewer rotates, and the projection point of the site between the eyebrows between human eyes of the viewer in the image frame sequence direction is re-located at the border of adjacent image frames through the image frame offset operation in the horizontal direction and the width reducing of the image frame, thus the image crosstalk can be reduced, and the 3D experience result of the viewer is promoted.

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.