Dual-type strain wave gearing
Granted: May 21, 2019
Patent Number:
10295037
An externally toothed gear of a dual-type strain wave gearing is provided with first and second external teeth having different tooth numbers, and is flexed into an ellipsoidal shape by a wave generator. When the theoretical values of the radial flexing amounts at major-axis positions of the first and second external teeth flexed into the ellipsoidal shape are expressed by d1=m1n1 and d2=m2n2 (m1 and m2 represent the modules of the first and second external teeth, and n1 and n2 represent…
Bandwidth saving with programmable redistribution
Granted: May 14, 2019
Patent Number:
10291544
A video encoder unit receives a video signal to encode along with auxiliary services such as audio streams and/or data streams. While the auxiliary streams are allotted a fixed bandwidth, the video encoder determines a required video bandwidth, which must be allocated in response to the request by a central allocator. Where economies are made in the auxiliary services for example by transmitting stereo audio instead of surround sound for example, the bandwidth requested from the central…
Linear actuator
Granted: April 9, 2019
Patent Number:
10256710
In a magnetic drive linear actuator, a load attachment portion is fixed to the lower side portion of the rectangular tubular coil frame of a mover, and a light-emitting portion of a position detection portion for detecting the movement position of the mover is fixed to the upper side portion of the coil frame. The load attachment portion and the upper side portion of the coil frame are mutually coupled through beam portions bridged there between. This makes it possible to prevent or…
Positioning control device for actuator provided with strain wave gearing using full-closed control with state observer
Granted: April 9, 2019
Patent Number:
10254740
A positioning control system is provided with a state-feedback control system with a state observer as a full-closed control system for driving and controlling a motor so that a load shaft, which is an output shaft of a strain wave gearing, is positioned at a target position on the basis of a load shaft position actually detected. The state observer estimates a motor shaft position and a motor velocity based on a control input for the motor and the load shaft position. The state-feedback…
Dual-type strain wave gearing
Granted: April 9, 2019
Patent Number:
10253863
An externally toothed gear of a dual-type strain wave gearing is provided with first and second external teeth having different teeth numbers. The first and second external teeth are flexed by a wave generator by the same flexing amount, into an ellipsoidal shape. The tooth depth of tooth profiles of the first external teeth having a low teeth number is smaller than the tooth depth of tooth profiles of the second external teeth having a high teeth number. A dual-type strain wave gearing…
Dual-type strain wave gearing
Granted: April 9, 2019
Patent Number:
10253862
An externally toothed gear of a dual-type strain wave gearing is provided with first and second external teeth having different teeth numbers, and is flexed into an ellipsoidal shape by a wave generator. When t(1) represents the tooth bottom rim wall thickness of the first external teeth, and t(2) represents the tooth bottom rim wall thickness of the second external teeth, the ratio of t(1)/t(2) is set to a value satisfying 0.5>t(1)/t(2)<1.5. Accordingly, a dual-type strain wave…
Static pressure seal-equipped motor
Granted: April 2, 2019
Patent Number:
10250097
A static pressure seal-equipped motor in which front and rear gaps are sealed by first and second static pressure seal portions disposed at first and second axial end portions of a motor rotating shaft protruding toward front and rear. Sealing gas supplied to sealing gaps of the first and second static pressure seal portions is caused to diverge and flow to chemical liquid atmospheres and a motor chamber or an encoder chamber into the chemical liquid atmospheres, and also prevent entry…
Strain wave gearing with built-in motor
Granted: March 19, 2019
Patent Number:
10236747
A strain wave gearing with a built-in motor is provided with a motor, a wave gear mechanism enclosing the motor coaxially, and a heat-insulation spacing formed therebetween. The wave gear mechanism has a wave generator attached to the motor rotor so as to rotate integrally with the motor rotor. A wave generator plug of the wave generator is fixed to a rotor magnet back yoke of the motor rotor so as to enclose the rotor magnet back yoke. The spacing is formed in a contact surface portion…
Planetary reduction gear device
Granted: February 26, 2019
Patent Number:
10215259
A planetary reduction gear device has first and second planetary gears meshed with a sun gear and an internal at different locations in a direction of an axis line; and a carrier assembly for supporting the first and second planetary gears. The carrier assembly has a first planetary carrier for supporting the first planetary gears and a second planetary carrier for supporting the second planetary gears. The first and second planetary carriers are fixed coaxially with each other in the…
Scheduler of processes having timed predictions of computing loads
Granted: February 26, 2019
Patent Number:
10216541
A scheduler of computer processes. The scheduler comprises first processing logic configured to obtain predictions of a computing load of a computer process to allocate. Predictions are associated with a period of time. The processing logic retrieves predictions of available computing capacities for the period of time, and determines, based on the predictions, a processing capability to allocate at least one computer process during the period of time. The scheduler may comprise second…
High bit rate media FEC recovery
Granted: February 19, 2019
Patent Number:
10211950
Approaches for recovering one or more media datagrams. A plurality of media datagrams, a plurality of row forward error correction (FEC) datagrams, and a plurality of column FEC datagrams are received. The plurality of media datagrams is logically arranged in rows and columns of media datagrams. Each row FEC datagram corresponds to one of the rows of the media datagrams and each column FEC datagram corresponds to one of the columns of media datagrams. Each received datagram is stored in…
Passing-type-meshing negative-deflection strain wave gearing
Granted: January 8, 2019
Patent Number:
10174825
A strain wave gearing is a negative deflection strain wave gearing. The tooth profile shape for the internally toothed gear is defined by using a convex, basic tooth profile curve, which is a curve portion from an inflection point (A) to a bottom-part point (B) of a moving locus (Mc) of an externally toothed gear with regard to an internally toothed gear obtained by a rack meshing approximation. The tooth profile shape for the externally toothed gear at a principal cross section is…
Wave generator and strain wave gear device
Granted: December 4, 2018
Patent Number:
10145459
The wave generator of the strain wave gear device comprises: a rigid plug; a roller bearing fitted on the elliptical outer circumferential surface thereof; and first and second cylindrical springs, which press loose rollers that have some play in the radial direction between the outer race and the inner race of the roller bearing against the outer raceway surface. The loose rollers are pressed against the outer raceway surface with a linear contact and roll according to the outer raceway…
Determining a computing capacity of one of a physical or a virtual machine
Granted: November 20, 2018
Patent Number:
10133605
The estimation of a computing capacity of a machine. The computing capacity is estimated by iteratively adding and removing calibrated computer processes on the machine, and performing a sum of computing loads of processes that execute on the machine. In order to characterize the ability of a machine to run in parallel a number of processes having a defined computing load, the processes are associated to a condition of success.
Strain wave gearing and method for manufacturing multi-layer hollow body
Granted: November 20, 2018
Patent Number:
10132398
A wave plug of a wave generator of a wave gear device includes: a metallic outer hollow body with an elliptical wave plug outer circumferential surface formed thereon; a metallic inner hollow body with a wave plug inner circumferential surface formed thereon; and an intermediate hollow body sandwiched between the outer hollow body and the inner hollow body. The intermediate hollow body includes CFRP layers. It is possible to implement a light wave plug in which a big hollow portion can…
Non-excitation operative brake and motor with non-excitation operative brake
Granted: November 20, 2018
Patent Number:
10132370
In a non-excitation operative brake, a friction plate faces the inner disk part of an attraction plate made from a magnetic material, and an electromagnet faces the outer disk part of the attraction plate. A part for generating a brake force acting on a hollow shaft is located on an inner circumferential side in a radial direction of the attraction plate, while a part for magnetically attracting the attraction plate so as to release the brake force is located on an outer circumferential…
Rotary actuator
Granted: November 6, 2018
Patent Number:
10122239
The rotary actuator has an outer rotor type motor assembled coaxially in a device hollow part of a strain wave gearing. One end of the device hollow part is closed by an end cover fixed to an output shaft of the strain wave gearing. A detection part is arranged between the motor and the end cover inside the device hollow part. A rotational position of a rotation detection plate mounted on an inside end surface of the end cover is detected by the detection part, to detect the rotational…
Dynamic allocation of CPU cycles in video stream processing
Granted: October 16, 2018
Patent Number:
10104405
Approaches for dynamically allocating CPU cycles for use in processing a video stream. Video complexity information for two or more digital video streams actively being processed by one or more video encoders is determined at periodic intervals. Video complexity information describes the complexity of digital video carried by the digital video streams across a bounded number of consecutive digital frames which includes digital frames not yet processed by the one or more video encoders. A…
System and method for distribution of broadcast channels
Granted: October 16, 2018
Patent Number:
10103927
A distribution system that may include multiple radio frequency outputs, a group of channel processing and digital up conversion units, and a set of digital to analog converters. The set of digital to analog converters is coupled between the group of channel processing and digital up conversion units and the multiple radio frequency outputs. The group of channel processing units may be arranged to generate multiple digital multiplexes and to provide the multiple digital multiplexes to…
Failure recovery for real-time audio and video encoding, decoding, and transcoding
Granted: October 9, 2018
Patent Number:
10097823
Approaches for recovering from a disruption in a live input stream when performing an encoding, transcoding, or decoding operation. A higher quality input stream and a lower quality input stream are received. The two streams may be an audio or video data stream. A real-time encoding, decoding, or transcoding operation is performed using the higher quality input stream. When a disruption in the higher quality input stream occurs, the real-time encoding, decoding, or transcoding operation…
