3520 results about "Circular motion" patented technology

An exercise apparatus, such as a front end or an upright elliptical trainer, includes a drive mechanism connected to a first reciprocating member and a second reciprocating member. Each reciprocating member includes a footpad that travels in an elliptical path. The exercise apparatus also includes a first arm member and a second arm member connected to the drive mechanism. Each arm member includes a first portion having a handle that travels in a back and forth path and a second portion having at least a part of which that travels in a circular or elliptical path. To convert the circular motion of the second portion to the back and forth motion of the handle, the second portion has an effective variable length that permits the distance between a first connection point and a second connection point of the arm members to change as the drive mechanism is actuated.

To provide users the ability to track their cardiovascular exercise and determine cardiovascular exercise machine usage, the present system and methods describe an activity tracking platform. The platform includes a wireless sensor configured to monitor a piece of cardiovascular exercise equipment. The sensor can be configured and positioned to monitor a moving part of the exercise equipment, such as the spinning tread of a treadmill or the circular movement of a bike peddle. Responsive to detecting activity, the sensor can associate the data with a specific user and, using a wireless sensor network, transmit the data to a central server. The platform provides the user an associated website, where the user may view historical workout information, current exercise equipment usage at a local gym, or current workout goals.

A calculating unit of a swing analyzer calculates, assuming that a golf club is in a uniform circular motion about a virtual center of rotation 0 during a swing, a virtual speed Vh at a central point R of a golf club head, based on a distance between first and second acceleration sensors, a distance between the first acceleration sensor and the central point R of a golf club head and outputs from the first and second acceleration sensors, and calculates the speed of central point R of a golf club head utilizing the virtual speed Vh.

An endoscope system has an optical fiber configured to transmit illumination light emitted from a light source to the tip portion of a scope; a scanner configured to spirally scan a target area with illumination light by vibrating the tip portion of said optical fiber; and an image generator configured to generate image data from image-pixel signals obtained from the light reflected from the target area. Then, the scanner scans the illumination light in a circular motion midway through a spiral scanning procedure.

This is directed to controlling media playback based on particular touch gestures detected by a touch-sensing interface. The electronic device can identify particular touch inputs, such as combinations of tapping and holding a touch sensitive surface, or circular motions. In response to detecting a particular touch gesture, the electronic device can perform a playback operation specifically associated with the detected touch gesture. To provide a consistent user interface with the device, some of the particular touch gestures can match other inputs provided using a button, for example a button integrated on a wired headset. In such an embodiment, the same combination of tapping and holding a touch input and pressing and holding a button can control the same electronic device operations.

Systems and methods for obtaining camera parameters from images are provided. First, a sequence of original images associated with a target object under circular motion is obtained. Then, a background image and a foreground image corresponding to the target object within each original image are segmented. Next, shadow detection is performed for the target object within each original image. A first threshold and a second threshold are respectively determined according to the corresponding background and foreground images. Each original image, the corresponding background image, the first and second threshold are used for obtaining silhouette data and feature information associated with the target object within each original image. At least one camera parameter is obtained based on the entire feature information and the geometry of circular motion.

The invention provides an elastic rail type automatic pipeline outer wall welding mechanism. Two cam bases are connected through a pin shaft, the two cam bases are adjustable in angle and suitable for different pipe diameters, and the two cam bases are fixed to a rail through cam locking mechanisms. An angle adjusting plate, wheel bases and cam bases can jointly form a basic framework of a welding trolley. The welding trolley are driven by gears and can do uniform circular motion around the elastic rail. A welding gun radial moving mechanism is arranged on the angle adjusting plate and is manually adjusted, a welding gun axial moving mechanism is connected to the radial moving mechanism, an axial moving driving motor can drive a rack to move to achieve axial welding gun movement, a welding gun swinging mechanism is arranged at the front end of a rack supporting seat, and a welding gun is directly driven by a stepping motor to swing around the welding joint center in a cycling and reciprocating mode. The elastic rail type automatic pipeline outer wall welding mechanism has the advantages of achieving miniaturization and modularization and being light in weight, even in weight distribution, economical and practical, simple to control, stable in operation and conveniently matched with various walking mechanisms of pipeline outer wall welding machines.

A touchscreen device is configured to display a number of user interface elements in accordance with a menu hierarchy. Upon receipt of a predetermined touchscreen gesture (e.g., the circular motion of a manipulator) the menu hierarchy is bypassed and the user is given immediate control over a selected function, for example, a tuning function such as audio volume, screen contrast, and the like.

The invention relates to an antenna phase-shift system, in particular to a simultaneous transmission device which accurately adjusts a plurality of groups of beam-forming networks in a multi-array antenna, a beam-forming network which is suitable for the antenna phase-shift system, and a precise phase-adjusting measurement and control device. The simultaneous transmitting device is used in an antenna which is provided with at least two radiating element arrays, implements control and realizes simultaneous phase shift to a phase-shift part which is owned by the beam-forming network of each radiating element array, comprising a driving device, a connecting rod and a transmission device, wherein the driving device is under the control of a control system which is independent of the antenna and provides a circular motion arm, the connecting rod is flexibly connected with the phase-shift part of each beam-forming network and causes each beam-forming network to shift the phase in a linking way under the linear motion of the connecting rod, and the transmission device converts the circular motion arm of the driving device into the linear motion of the connecting rod. The whole antenna phase-shift system has compact structure and can realize simultaneous precise phase adjustment to the antenna, in particular to TD-SCDMA antenna.

A power toothbrush with a drive train that is easy to manufacture, reliable in service and that enables multiple heads or other complex design or functional elements is provided. In an illustrative embodiment, the power toothbrush includes a sealed case that encloses a motor with a pinion gear joined to an eccentric link. This eccentric link can be a circular rack having an eccentric pin that rides in a slot on a drive plate. The drive plate is joined to a push rod, typically constructed of metal that passes up a hollow toothbrush shaft through an elastomeric seal to a head assembly. The head assembly includes one or more moving disks that are each connected to generally circular brush heads, which project outwardly from the head assembly. One disk receives a bent end of the drive shaft in a hole located eccentrically to the axis of rotation. When the circular rack rotates in a single direction, it drives the shaft in a reciprocating motion that, thereby, rotates the disk in a corresponding reciprocating circular motion about its axis. Additional disks can be linked by a short connecting shaft or link to the first disk via eccentric holes—other linkages, such as mating gears between disks can be used to simultaneously drive further disks, thereby providing a multiple moving-head power toothbrush.

A cam mechanism for use in a mowing machine. The cam mechanism is comprised of a spur gear and protruding eccentric cams from the top and bottom surfaces of the spur gear. The cam mechanism is formed from a half blanking press process. The eccentric cams are symmetrically formed around a shaft hole located in the center of the spur gear. Members with a hole equaling that of the eccentric cam and shaft hole point symmetry are then fitted onto the eccentric cam. The members are then capable of reciprocation with a phase differential of 180 degrees of each other. The concave portion of the eccentric cam permits lubricants to be filled in the space facilitating the smooth operation of the cam mechanism.

A method of using a capacitance-sensitive touchpad, wherein the touchpad includes a zone on a surface thereof, wherein touchdown of a pointing object within the zone enables activation of a scrolling function, wherein direction of scrolling is then controlled by a gesture by the pointing object, such as moving in a circular motion in a clockwise direction to move down in a list, and in a counter clockwise direction to move up in a list, and wherein fast and slow scrolling speeds are controlled by tapping functions within the scroll zone.

A stationary exercising apparatus which promotes cardiovascular exercise yet minimizes impact on critical joints through the generation of a predetermined elliptical path movement while maintaining foot platforms substantially parallel with the floor. A base structure supports a pair of reciprocating members which are displaced in a horizontal direction parallel with the floor at one end yet reciprocate in circular motion at the other end through a coupling system attached to the frame. A linkage assembly is included which operates in conjunction with the reciprocation of one end of the reciprocating members to maintain the foot platforms substantially parallel with a reference plane while revolving the foot platforms in a substantially elliptical path. The apparatus may include additional linkage to facilitate a corresponding upper body exercise involving movement of the arms along a predetermined arc.

In a system and a method, a selection of an input data field is detected. In response to the selection of the input data field, a user interface having an inner concentric circle and an outer concentric circle is generated. A contact point corresponding to a location of a touch gesture submitted via a touch-enabled input device within one of the inner concentric circle and the outer concentric circle is detected. An angular velocity of circular movement from the contact point around one of the concentric circles is measured. An input data value is adjusted at a granularity based on the contact point and at a rate based on the measured angular velocity of circular movement.

Provided is an exercise device including a planar support surface and a rolling joint which is configured to enable a 360° range of motion for the exercise device. In this regard, the user may roll the exercise device along a planar surface in a forward-and-backward motion, a side-to-side motion, or in an arcuate or circular motion.

The presence of trace molecules in air may be determined using an ion mobility spectrometer. Such devices may be used in the fields of explosives detection, identification of narcotics, and in applications characterized by the presence of very low airborne concentrations of organic molecules of special interest. The sensitivity of such instruments may depend upon on the method of gas sampling utilized. A virtual wall gas sampling system can greatly improve the sampling efficiency, particularly when the sampling needs to be performed at a distance from the air intake and large volumes need to be sampled. The virtual wall gas sampling system consists of an intake gas flow and a separate group of one or more sheet-like gas flows, which may be either mutually deflected to move with a circular motion or may be formed into a cylindrical bounding surface.

An apparatus is provided for separation of suspended solid particles from fluids, for separation and mixing of fluids, and for dissolving gases in aqueous fluids. The apparatus employs a grooved ring to divide the fluid stream and impart a high velocity on each of the divided or sub-streams. A grooved ring with any number of grooves that may be spiral in shape is used to create a high velocity circular motion on a divided stream for separation of suspended solid particles by centrifugal force in a cyclone filter and for saturation of liquid with gases in a fluid mixer where gases are introduced through a diffuser. A grooved ring with any number of grooves that may be radial is used in a fluid mixer to divide a stream of fluid, produce a high velocity flow through each groove, introduce a second fluid through an orifice into the first fluid flowing through each groove, and direct the fluid mixture to a center impact zone where the various streams collide to complete the mixing.

The invention provides an automatic arc slab rough grinding machine which comprises a base, stand columns, an arched girder and an adjustable working platform in the middle of the base. The two ends of the arched girder are fixedly connected with arched girder lifting devices arranged on the stand columns, and the arched girder lifting devices drive the arched girder to slide along the stand columns synchronously in the vertical direction. A grinding head lifting device and a circular motion mechanism are arranged on the arched girder, and the grinding head lifting device is fixed to the circular motion mechanism and drives a grinding head device fixed in the grinding head lifting device to make contact with or be separated from the surface of a workpiece fixed to the adjustable working table. Water is sprayed on the grinding head device so that wet grinding can be conducted between the grinding head device and the workpiece during work. The circular motion mechanism is matched with a long chain fixed to the arched girder, and drives the grinding head lifting device to do the circular motion in a rail direction of an arc-shaped guide rail on the arched girder and to grind the workpiece on the adjustable working table. By means of the automatic arc slab rough grinding machine, accuracy and efficiency of grinding the workpiece are improved, the working environment for workers is improved, and grinding powder is prevented.

The invention discloses a multi-station full-automobile casting machine comprising a casting robot. The casting robot is fixed on one side of a workbench on a mainframe, at least three casting units are annularly distributed on the workbench, and a hydraulic pushrod mechanism is arranged face to face at one casting unit on one side of the workbench; the hydraulic pushrod mechanism supports the casting unit, a bull gear is arranged at the bottom of the workbench, pulley supports are fixed on the edge of the workbench corresponding to the casting units, each pulley support is provided with a pulley, a guide rail table is arranged on the mainframe and is provided with a motor, the motor drives a small pinion to rotate, the small pinion is meshed with the bull gear, and the pulleys acts circular movement along the guide rail table. With the multi-station full-automobile casting machine, a whole lower mould fixture moves to be regulated through the regulation of a guide rod so as to meet the requirement of an upper casting mould and a lower casting mould on compact matching; simultaneously, the casting units rotate through a hydraulic system, thus the manufactured castings have higher degree of crystallization and higher strength.