1025 results about "Head position" patented technology

Systems and methods for dynamically controlling vergence and focus for a see-through head-mounted display (ST-HMD) used as part of an augmented reality (AR) system are disclosed. The ST-HMD (40) allows a user (30) to view left and right images (150L, 150R) through corresponding left and right eyepieces (104L, 104R) so that a single virtual object (150V) based on the right and left images as seen at a real object such as a screen (20). When the user moves relative to the real object, however, the vergence changes and the virtual object does not appear in focus at the real object. Changes in the vergence are compensated by tracking the user's head position with a tracking unit (350) and providing the tracking data to a controller (180). Based on the tracking data and the interpupilary distance (IPD) of the user, the controller calculates the offset (H) needed to be imparted to the images formed in the eyepieces to maintain the vergence of the virtual object at the real object even when the user's position changes relative to the real object.

A positional relationship between image capturing means and a player is properly adjusted before a game is started. An image of a player P is captured by a camera unit 42, and from this image the head position of the player is recognized, so that the game proceeds based on the recognized result. At this time, the player image is displayed on the title screen, and the position where the head position of the player P should be located is displayed distinctively in the player image. As a result, the player P can properly adjust the positional relationship between the camera unit 42 and himself/herself before starting a game.

A listener can experience the sound of virtual loudspeakers over headphones with a level of realism that is difficult to distinguish from the real loudspeaker experience. Sets of personalized room impulse responses (PRIRs) are acquired for the loudspeaker sound sources over a limited number of listener head positions. The PRIRs are then used to transform an audio signal for the loudspeakers into a virtualized output for the headphones. Basing the transformation on the listener's head position, the system can adjust the transformation so that the virtual loudspeakers appear not to move as the listener moves the head.

A remote control microdisplay device that uses hand movement, body gesture, head movement, head position and/or vocal commands to control the headset, a peripheral device, a remote system, network or software application, such as to control the parameters of a field of view for the microdisplay within a larger virtual display area associated with a host application, a peripheral device or host system. The movement and/or vocal commands are detected via the headset and/or detachable peripheral device connected to the headset microdisplay device via one or more peripheral ports.

A system and method tracks the movements of a driver or passenger in a vehicle (ground, water, air, or other) and controls devices in accordance with position, motion, and/or body or hand gestures or movements. According to one embodiment, an operator or passenger uses the invention to control comfort or entertainment features such the heater, air conditioner, lights, mirror positions or the radio/CD player using hand gestures. An alternative embodiment facilitates the automatic adjustment of car seating restraints based on head position. Yet another embodiment is used to determine when to fire an airbag (and at what velocity or orientation) based on the position of a person in a vehicle seat. The invention may also be used to control systems outside of the vehicle. The on-board sensor system would be used to track the driver or passenger, but when the algorithms produce a command for a desired response, that response (or just position and gesture information) could be transmitted via various methods (wireless, light, whatever) to other systems outside the vehicle to control devices located outside the vehicle. For example, this would allow a person to use gestures inside the car to interact with a kiosk located outside of the car.

System and method for monitoring the physiological behavior of a driver that includes measuring a physiological variable of a driver, assessing a driver's behavioral parameter on the basis of at least said measured physiological variable, and informing the driver of the assessed driver's behavioral parameter. The measurement of the physiological variable can include measuring a driver's eye movement, measuring a driver's eye-gaze direction, measuring a driver's eye-closure amount, measuring a driver's blinking movement, measuring a driver's head movement, measuring a driver's head position, measuring a driver's head orientation, measuring driver's movable facial features, and measuring a driver's facial temperature image.

A method of guiding a vehicle to a region for initiating a parallel parking maneuver. A region of feasible starting locations for successfully performing a parallel parking maneuver is determined by a processor. A position of the vehicle relative to the region of feasible starting locations is determined. A determination is made whether the vehicle is in a zero heading position. The vehicle is guided along an initial target path by controlling a steering actuator until the vehicle is in a zero heading position relative to the road of travel in response to the vehicle is not in the zero heading position. A planned path is generated that includes two arc-shaped trajectories extending between the vehicle at the zero heading position and a position within the region of feasible starting locations as determined by the processor. The steering actuator is controlled to follow the planned path to the feasible region.

A method of writing product servo bursts to a disk in a disk drive is disclosed. An external spiral servo writer comprising a head positioning pin and head positioning mechanics periodically writes a plurality of reference servo bursts in a plurality of spiral reference patterns to the disk. The reference servo bursts in the spiral reference patterns are processed to write product servo bursts to the disk. In one embodiment control circuitry within the disk drive processes the reference servo bursts to self-servo write the disk drive, and in another embodiment an external product servo writer processes the reference servo bursts to write the product servo bursts to the disk. In one embodiment, a slope of each spiral reference pattern is selected so that each spiral reference pattern is written over at least twenty revolutions of the disk to increase the accuracy of the head position error generated from the reference servo bursts.

A method is disclosed for improving head position accuracy in a disk drive during track following of concentric data storage tracks through real-time identification of external vibration and monitoring of write-unsafe (WUS) occurrences. In the method, after a seek operation to a predetermined data storage track, the track is followed using a servo control loop having a nominal gain and responsive to a position error signal (PES). After waiting a vibration detection delay period, occurrences of the PES exceeding a WUS limit are counted generating a WUS limit exception count. Also, a property of a variance is determined from spectral power values generated from the PES during track following. If the WUS limit exception count exceeds a first threshold, and if the property of the variance exceeds a second threshold, the nominal gain is increased to a vibration gain within a frequency band, to attenuate the effect of external vibration.

A disk drive is disclosed comprising a plurality of servo sectors that define a plurality of tracks, and a head comprising a read element radially offset from a write element. The read element is positioned over a first track, and the first track is read to generate first read wedge repeatable runout (WRRO) values. A first seek operation of the head positions the read element over a second track, and the second track is read to generate first write WRRO values. The first write WRRO values are used to write the first read WRRO values to the first track. A second seek operation of the head positions the read element over a third track, and the third track is read to generate second write WRRO values. The second write WRRO values are used to write the first write WRRO values to the second track.

A display assembly, comprising: a display device (30); a microlens array (34); and an eye tracker (8), for example a pupil tracker (8), and/or a head tracker; wherein plural pixels (150) or sub-pixels of the display device (30) are provided for each microlens (160) of the microlens array (34). The display may be adapted such that only certain pixels/sub-pixels (150) are activated/selected for any particular determined pupil/eye/head position, for example such that for each microlens (160), only one respective pixel/sub-pixel (150) is activated/selected for any particular determined pupil/eye/head position. The display device (30) may be a transparent display device (30), the microlens array (34) may be a switchable microlens array (34), and the display assembly may further comprise a light blocking device (32) that is switchable between a substantially light blocking state and a substantially light passing state.

A system for multi-modal cockpit interface during surface operation of an aircraft comprises a head tracking device, a processing element, and a full-color head worn display. The processing element is configured to receive head position information from the head tracking device, to receive current location information of the aircraft, and to render a virtual airport scene corresponding to the head position information and the current aircraft location. The full-color head worn display is configured to receive the virtual airport scene from the processing element and to display the virtual airport scene. The current location information may be received from one of a global positioning system or an inertial navigation system.

An advanced photo booth comprises a camera, a kiosk printer; and attraction means for inducing patronage of passers-by. The attraction means comprises: a camera and a touch screen for capturing and displaying passerby images; and interactive communication with passers-by. Interactive communication may include personalized greetings made possible through facial recognition techniques that compare a presently captured passerby image with previous passerby and patron images stored in a memory. Digital image processing techniques automatically permit proper tilting of a head in the display screen, regardless of a head position in captured passerby images. The attraction means also comprises a second exterior display screen usable for advertising and CATV broadcasts. The passerby touch screen or a touch screen display within the enclosure permits customization of digital images, including: face replacement, hair replacement, and background selection; and also permits previewing of customized images. Remote control capabilities enhance the flexibility of booth operations.

Disclosed is a method of retrieving video frames over a network for subsequent display. A user interaction (303) with a timeline (202) represented by a client (103) coupled to the network (105) is detected. From the detected interaction, a request (304) for video to be retrieved from a server (101) across the network is formed. A series of non-contiguous (scattered) sample frames (FIGS. 13-16) received in response to the request are then cached (104) for subsequent display. This method permits efficient handling of video scrubbing requests for streamlining video as only selected ones of the cached sample frames close to a GUI play head position (203) need be reproduced. Since the frames are non-contiguous, the scope of the source video is quickly sampled permitting improved user response and, where desired, adjustment of the play head position.

The present invention discloses a U-shaped travel pillow having a base cushion and raised cushion fixed to the top side of the base cushion. The inner peripheral walls of the base and raised cushions are mutually flush, while the rear walls are mutually flush and substantially flat for better contact with flat surfaces, such as a headrest, seat, or chair. Furthermore, the rear wall of the raised cushion is thinner than the sides, providing more liberty to adjust head position by easily adapting to the shape of the headrest, seat or chair. A removable cover is adapted to cover the base and raised cushions, while a drawstring with an adjustable cinch mechanism can be used for adjusting the travel pillow around the neck.

An apparatus for simultaneously polishing wafers including at least a first and a second web of polishing media. At least two polishing heads are provided on a carrier coupled to a drive system such that one polishing head positions a wafer against the first web and a second polishing head positions a second wafer against the second web. The drive system imparts a programmed polishing motion or pattern to the polishing heads.

These and other objects of the present invention are achieved in a card reader with a read head positioned in a housing. The read head is configured to be coupled to a mobile device and has a slot for swiping a magnetic stripe of a card. The read head reads data on the magnetic stripe and produces a raw magnetic signal indicative of data stored on the magnetic stripe. A power supply is coupled to wake-up electronics and a microcontroller. An output jack is adapted to be inserted in a port of the mobile device and deliver an output jack signal to the mobile device.

An image processing system detects a moving person or other object of interest. The system generates a thresholded difference image by processing a video signal or other type of image signal received from a camera. The difference image is then segmented into regions bounded by vertical lines passing through the image, and silhouette candidates are identified in one or more of the regions. Tensor voting is used to determine saliency values and corresponding tangents for each of the silhouette candidates, and the resulting values and tangents are used to detect the object of interest. In an embodiment in which the object of interest is a moving person, a neck position of the moving person may be detected by analyzing a sum of x-components of tangents along a corresponding silhouette. The detected neck position may then be utilized to determine a head position and a head size for the moving person.

The invention provides a flapping wing lift generating device, comprising a flapping wing mechanism, a flapping wing rotating mechanism and a flapping wing lifting mechanism, which are installed on an ornithopter. The flapping wing mechanism comprises two flapping wing blades and two flapping axles. Each flapping wing blade is a rigid rectangular plate with baffles at the ends. Each flapping axle is composed of two strip splints which clamp the flapping wing blades and allow the flapping wing blades to glide in the strip splints and two sections of coaxial axle heads positioned at the ends of the strip splints. The flapping wing rotating mechanism comprises a flapping gear fixed on an axle head at one end of the flapping axle, driving gears meshed with the flapping gear, a driving belt or a driving chain between the two driving gears. One driving gear is connected with a rotating motor. The flapping wing lifting mechanism comprises a lifting rod and lifting wheels. The lifting rod is an I-shaped member. The two lifting wheels clamp the web rod of the I-shaped member. One lifting wheel is driven by a lifting motor. The device has high efficiency and large lift and can be used as the propeller of air or water transportation.

It is an object of this invention to provide an active headrest which will not over-push the head of a passenger. For this purpose, the invention provides a headrest controller for moving a part (20A) or whole of a headrest (20) of a vehicle seat toward a head of the passenger to reduce the distance between the headrest (20) and the head in the horizontal direction by predicting or detecting a crash to the rear of the vehicle, including a head position detecting unit (11) for detecting a predetermined state of approach or state of contact of the headrest (20) to or with the head during the movement of the headrest (20) and a control circuit for stopping the headrest based on a detection signal from the head position detecting unit (11).

The invention provides a pupil center-corneal reflection (PCCR) based sight line evaluation method in a sight line tracking system, belonging to the field of man-machine interaction. With specific to the main problems on user head motion limits and individual calibration in the traditional PCCR, the invention provides a method for compensating head positions under the conditions of a single camera and a single light source, which realizes the analysis compensation for influences of head positions variation to a pupil center-corneal vector, establishes an individual difference conversion model and further simplifies a calibration process to be a single-point process. Accordingly, a novel sight line evaluation method is developed; and in the method, the requirements of precise sight line evaluation on minimum hardware are decreased to be the single camera (uncalibrated) and the single light source, complex system calibration is unnecessary, natural head-motion sight line evaluation is realized, and user calibration is simplified to be single-point calibration. All links in the method meet the instantaneity requirements, and an effective solution to the sight line tracking system oriented to man-machine interaction is provided.

A head positioning device comprising: (A) a head support that is configured for supporting a patient's head; and (B) a sliding joint that is connected to allow the head support to be moved about a virtual axis of rotation while the head support is supporting the patient's head, wherein the virtual axis of rotation is spaced apart from the sliding joint. The head positioning device may include a head restraint for maintaining the patient's head in a substantially fixed relation to the head support as the head support is moved about the virtual axis of rotation. In one embodiment, the head restraint comprises a hook member that is configured for hookedly engaging a curved portion of the patient's face.

A card reader has a read head positioned in the housing. The read head is configured to be coupled to a mobile device. The read head has a slot for swiping a magnetic stripe of a card. The read head reads data on the magnetic stripe and produces a raw magnetic signal indicative of data stored on the magnetic stripe. Device electronics are provided that include a microcontroller. The device electronics receives a raw magnetic head signal and converts it into a processed digital signal that the microcontroller can interpret. The microcontroller produces a synchronous Manchester encoded stream that makes a greater number of 0 crossings. An output jack is adapted to be inserted in a port of the mobile device and deliver a Manchester encoded stream output jack signal to the mobile device.

A reader is provided that has a housing with a center point and a read head positioned in the housing. The read head is configured to be coupled to a mobile device. The read head has a slot for swiping a magnetic stripe of a card. The read head reads data on the magnetic stripe and produces a signal indicative of data stored on the magnetic stripe. The read head is positioned to be offset from the center point of the housing. An output jack is adapted to be inserted in a port of the mobile device and deliver an output jack signal to the mobile device.

An ink-jet printing apparatus and a head position adjustment method which are capable of adjusting respective positions of multiple ink-jet heads in either a simultaneous manner or in an independent manner. The head position adjustment method can be applied to an ink-jet printing apparatus including a movable support table, a first ink-jet head fixedly coupled to the support table and provided with nozzles to eject ink, and a second ink-jet head arranged to be movable with respect to the first ink-jet head and provided with nozzles to eject ink. The head position method can include detecting respective positions of the first and second ink-jet heads, comparing the detected position of the first ink-jet head with a target position of the first ink-jet head, moving the support table to correct the position of the first ink-jet head, comparing the detected position of the second ink-jet head with a target position of the second ink-jet head if the detected position of the first ink-jet head is different from the target position of the first ink-jet head, and moving the second ink-jet head with respect to the first ink-jet head to correct the position of the second ink-jet head if the detected position of the second ink-jet head is different from the target position of the second ink-jet head.

An apparatus for supporting the head and neck of a user for airway management includes a head-supporting surface dimensioned to receive and support the head of the user and a neck-supporting surface connected to the head-supporting surface, wherein the neck-supporting surface is dimensioned to receive and support the neck of the user; wherein the head-supporting surface and neck-supporting surface are configured so that when the user is lying on his or her side with a side of his or her head positioned on the head-supporting surface and a side of his or her neck on the neck-supporting surface, the user's head and neck are automatically aligned in the sniff position for improved airway management.

Disclosed is a Bluetooth sports headset, comprising a headset body, a wire control unit, and a headset wire. Two headset bodies having the same structure are respectively connected to the wire control unit via the headset wire; the wire control unit is configured to control the headset body which comprises a rear cover, a wire tail, a cell, an ear shell, a speaker, a front nozzle, and an earmuff. The cell is mounted in an inner cavity of the ear shell; the rear cover on a tail end surface of the ear shell; the earmuff on a head of the ear shell; the front nozzle on an inner side of the earmuff; the speaker on an inner side of the front nozzle and is opposing the head position of the ear shell; the wire tail on an outer surface of the ear shell and is connected to the headset wire.

This invention has as its object to attain efficient encoding/decoding even when the processing time, memory, arithmetic cost, and the like of an apparatus are limited.

Encoded image data is input to an image processing apparatus (1) to obtain transform coefficients of subbands. The transform coefficients required to decode an image from its head position line by line are encoded by Golomb coding using one line of a subband as a unit to generate a code sequence, which is output to an image output apparatus (2). The image output apparatus (2) reconstructs an image by decoding the Golomb encoded data, dequantizing the coefficients, and computing the inverse discrete wavelet transforms of the coefficients, and outputs the reconstructed image.

The invention discloses a head attitude tracking device and method based on incomplete characteristics. Normalized processing on a video stream acquired in real time is carried out by a head attitudedetection system based on computer vision, then whether a face portion exists is determined through characteristic confirmation by a model after CNN training, if face detection fails, and the incomplete facial characteristic part is completed by a trained confrontation network model; the position of the face is tracked in the video, the facial characteristic point position is marked by a sparsely-constrained model, the PnP algorithm is utilized to acquire Pitch, Yaw, Roll three angle values [thetax thetay thetaz] of the head attitude, and the angle values are then sent to a follow-up holder. The method is advantaged in that the accurate head position and attitude information can be provided, and high timeliness and good robustness are realized.

An audio processing system may modify an input surround sound signal to generate a spatially equilibrated output surround sound signal that is perceived by a user as spatially constant for different sound pressures of the surround sound signal. The audio processing system may determine based on a psychoacoustic model of human hearing, a loudness and a localisation for a combined sound signal. The loudness and the localisation may be determined by the system for a virtual user located between the front and the rear loudspeakers that has a predetermined head position in which one ear of the virtual user is directed towards one of front or rear loudspeakers and the other ear of the virtual user being directed towards the other of the front or rear loudspeakers. The audio processing system may adapt the front and/or rear audio signal channels based on the determined loudness and localisation.