WAVE GEAR DEVICE HAVING THREE-DIMENSIONAL CONTINUOUS CONTACT TOOTH PROFILE
Granted: November 15, 2012
Application Number:
20120285283
In a wave gear device, similarity curve tooth profiles for defining the tooth-face tooth profile of each of a flexible externally toothed gear and a rigid internally toothed gear is determined from the movement trajectory, relative to a tooth of the rigid internally toothed gear, of a tooth of the flexible externally toothed gear at a main cross-section at which the deflection factor is ?=1. Tooth profile curves, which have been subjected to profile shifting corresponding to the…
POSITIONING APPARATUS FOR ACTUATOR WITH WAVE GEAR DEVICE
Granted: October 25, 2012
Application Number:
20120271459
In a positioning apparatus for an actuator, a sliding mode controller for compensating for nonlinear characteristics of a wave gear device of the actuator generates a control input u to a controlled object, based on a position command ?1* and a state variable x for expressing the controlled object. The controlled object is defined in the following formula. {dot over (x)}=Ax+Bu+E?l* y=Cx The switching surfaces of the sliding mode control system are defined by a variable S expressed…
Methods and System for Efficient Data Transfer Over Hybrid Fiber Coax Infrastructure
Granted: October 25, 2012
Application Number:
20120271922
The invention is directed to a method for providing client-server data transfer over a Hybrid Fiber Coax network, comprising interfacing, at a client, a channel, wherein the channel is one of a video channel and a DOCSIS channel, intercepting a content request made from an end-user computing device, notifying a server of a relevant intercepted message via one of using an interactive channel and tagging the request, selecting content sent by the server over the channel, processing the…
METHOD FOR OPTIMIZING THE FORWARD ERROR CORRECTION SCHEME
Granted: September 13, 2012
Application Number:
20120233525
The present invention relates to a method for optimizing the FEC scheme comprising the steps of (a) receiving a batch of data packets designated for transmission; (b) choosing a number of divisors having no common denominators in accordance with the said batch of data packets; (c) organizing into blocks said batch of data packets a number of times in accordance with the number of divisors using said divisors; and (d) creating a FEC packet for each of said blocks.
MAGNETIC ABSOLUTE ENCODER AND MOTOR
Granted: September 13, 2012
Application Number:
20120229127
A magnetic absolute encoder includes: a board-holding assembly mounted to a motor case assembly side; and a flexible printed wiring board which is held, by the board-holding assembly, in the shape of a loop surrounding multipolar and bipolar ring magnets. On the flexible printed wiring board, multipolar-side hall elements and bipolar-side hall elements are mounted and a wiring pattern relating to the hall elements are printed. The assembling work and wiring work of the magnetic absolute…
Systems and Methods for Segmenting and Communicating Video Data
Granted: August 2, 2012
Application Number:
20120195361
A data processing system receives video data from a data source and separates the video data into multiple video data segments. Each of the multiple video data segments are substantially the same size. The system generates a data segmentation element associated with each video data segment. The data segmentation element describes content in the associated video data segment. Each video data segment and the associated data segmentation element are communicated to a destination device.
ROBOT HAND AND FINGER MECHANISM
Granted: June 21, 2012
Application Number:
20120153655
A robot hand converts the longitudinal extending and retracting motion of an actuating rod of a linear actuator into opening and closing motion of left and right first links via a link mechanism. The link mechanism includes left and right middle links composed of coil springs. When the left and right first links come in contact with an object to be gripped, the middle links elastically deform and expand, and the force gripping the object gradually increases due to the elastic deformation…
NONCIRCULAR BEARING, WAVE GENERATOR, AND WAVE GEAR DEVICE
Granted: April 12, 2012
Application Number:
20120085188
A wave generator (4) of a wave gear device (1) is equipped with a rigid cam plate (5) and a wave bearing (7). The wave bearing (7) comprises an oval raceway surface (5b) formed on the oval outer peripheral surface (5a) of the rigid cam plate (5), a flexible bearing ring (8) equipped with a circular raceway surface (8a), and multiple balls (10) inserted in the race (9) formed between oval raceway surface (5b) and circular raceway surface (8a). A ball insertion hole (11) is formed at the…
METHOD OF DETECTING ABSOLUTE ROTATIONAL POSITION
Granted: March 22, 2012
Application Number:
20120068694
Before detecting a mechanical angular absolute position ?abs of a rotating shaft (4) within one turn using a two-pole absolute value encoder (2) and a multi-pole absolute value encoder (3) having Pp (Pp: an integer of 3 or more) pole pairs, the rotating shaft (4) is rotated to measure a temporary absolute value ?elt of the multi-pole absolute value encoder (3) in relation to each absolute value ?t of the two-pole absolute value encoder (2), and a temporary pole-pair number (Nx) for a…
WAVE-TYPE LINEAR MOTION MECHANISM
Granted: February 16, 2012
Application Number:
20120036951
Disclosed is a wave-type linear motion mechanism including a hydraulic pressure chamber for applying a retention force in the axial direction to a rigid screw member which moves in a linear fashion. Regulating valves are provided in the hydraulic pressure chamber, and these regulating valves open during the rotation of a wave generator so that no hydraulic pressure is exerted on the rigid screw member which moves in a linear fashion. During the rotation of the wave generator the…
ELECTROSTATIC COATING APPARATUS
Granted: February 9, 2012
Application Number:
20120031329
Provided is an electrostatic coating apparatus capable of insulating an electric motor electrically from a member, to which an electrostatic high voltage is applied, and reducing the size and weight of the electrostatic coating apparatus. This electrostatic coating apparatus comprises a rotary atomizing head, to which high voltage is electrostatically applied, an electrostatically grounded AC servomotor, and a spindle and a fixed insulating member for insulating the AC servomotor…
PROMPTING A PLAYER OF A DANCE GAME
Granted: January 26, 2012
Application Number:
20120021833
Presented herein are methods, apparatuses, programs, and systems for prompting a player to perform a series of dance moves. A player is prompted to perform a series of dance moves by providing a timeline comprising at least a first time interval associated with a first dance move, and a second time interval associated with a second dance move; displaying an icon representing the first dance move at a first location on the display for the duration of the first time interval; and…
H.264/AVC BASED APPROACH TO SCALABLE VIDEO COMPRESSION
Granted: January 12, 2012
Application Number:
20120008677
A scalable video compression method and apparatus for encoding an input frame sequence having temporally sequential frames includes partitioning each of the frames of the input frame sequence into a top field and a bottom field to form a base layer sequence of fields and an enhancement layer sequence of fields. The base layer sequence and the enhancement layer sequence each comprise temporally alternating top and bottom fields of the partitioned frames of the input frame sequence. The…
SYSTEMS AND METHODS FOR VIDEO STATISTICAL MULTIPLEXING ADAPTING TO INTERNET PROTOCOL NETWORKS
Granted: January 5, 2012
Application Number:
20120005716
The present invention discloses methods and systems of statistical video multiplexing to improve the performance of video encoding by minimizing delay while achieving high video quality. The video encoders used in the system are capable of calculating the complexity of underlying video sources and communicating the complexity to the multiplexer. Furthermore, the video encoders are capable of estimating the look-ahead complexity, i.e. the future complexity and communicating the future…
METHOD FOR CREATING DRIVE PATTERN FOR GALVANO-SCANNER SYSTEM
Granted: December 15, 2011
Application Number:
20110304836
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…
SEGMENTED CORE MOTOR STATOR
Granted: November 17, 2011
Application Number:
20110278983
Stator core of motor stator is equipped with a segmented core connecting body which connects in an annular shape a segmented core having a structure whereby laminated core plates are connected and held in place in a laminated state. To connect and fix core laminated plates by clamping, first and second dowels formed in each core laminated plate are used to connect and fix common rings by pressure-fitting them to the first and second end faces at either side of the segmented core…
SYSTEMS AND METHODS FOR A MOTORIZED VENT COVERING IN AN ENVIRONMENT CONTROL SYSTEM
Granted: November 3, 2011
Application Number:
20110269389
A motorized vent covering for an air vent of the environment control system, the motorized vent covering comprising an air flow restrictor for controlling air flow through the vent; and an actuator, the actuator including a motor configured to drive the air flow restrictor to control the flow of air from the vent, and a controller in communication with the motor, the controller configured to provide operating instructions to the motor to open or close the air flow restrictor to adjust…
METHOD FOR PERFORMING ADAPTIVE FRICTION COMPENSATION IN AN ACTUATOR ACCOUNTING FOR VARIATION IN FRICTION CHARACTERISTICS OF WAVE GEAR DRIVE ACCOMPANYING CHANGE IN TEMPERATURE
Granted: October 13, 2011
Application Number:
20110251722
According to a method for performing adaptive friction compensation of an actuator including a wave gear drive, there is used as a friction compensation current applied to a motor drive current a static friction compensation current is when a motor shaft stops with a deviation, and a Coulomb friction compensation current ic in other circumstances. The static friction compensation current is is obtained by adding a compensation amount isr of a monotonically increasing ramp function to a…
METHOD FOR CONTROLLING POSITIONING OF ACTUATOR COMPRISING WAVE GEAR DEVICE
Granted: October 13, 2011
Application Number:
20110248661
A method for controlling positioning of an actuator having a wave gear device uses a strict linearization technique to compensate for the effects relative to positioning control of a load shaft in the, as caused by the non-linear spring characteristics of the wave gear device. In the method, a plant model is constructed from the actuator to be controlled, the model being linearized using a strict linearization technique; measurements are taken of the non-linear elastic deformation of the…
Real Time Bit Rate Switching for Internet Protocol Television
Granted: October 6, 2011
Application Number:
20110247043
A method, apparatus and computer program product are provided for delivering television programming to a subscriber. In one aspect the method includes receiving one or more channels of program content, and encoding each channel a plurality of times, each time at a different rate producing multiple rate encoded signals for each channel. The method can further include transmitting the multiple rate encoded signals to a central office over a network, determining an available bandwidth of a…
