Harmonic Patent Grants

Dynamic allocation of compute capacity in video stream processing

Granted: February 20, 2024
Patent Number: 11910042
Approaches for dynamically allocating compute capacity for 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…

Lubricant sealing structure, strain wave gearing, and actuator

Granted: January 30, 2024
Patent Number: 11885403
A strain wave gearing has a lubricant sealing structure that prevents a lubricant from leaking to the outside through a gap portion between a hollow input shaft and an end plate. The lubricant sealing structure includes an oil-repellent surface formed on the surface portion facing the gap portion, an oil seal that seals the gap portion, and an oil film forming surface formed at a lip tip surface of the oil seal. The oil-repellent surface has a surface texture in which first fine grooves…

Dual absolute encoder

Granted: January 16, 2024
Patent Number: 11874143
An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element…

Flat strain wave gearing

Granted: December 12, 2023
Patent Number: 11841071
The flat strain wave gearing is provided with an axially arranged rigid gear, flexible gear and wave generator. The flexible gear forms a flat truncated cone shape, has a tooth formation portion connected via a bellows-shaped cross-sectional diaphragm to a rigid boss which is an output shaft linking part. The flat strain wave gearing can ensure axial flexibility of the tooth formation portion, and can enable teeth of the flexible gear to mesh favorably with teeth of the rigid gear in the…

Using web-based protocols to assist graphic presentations when providing digital video

Granted: November 28, 2023
Patent Number: 11831699
Providing digital video having customized graphics whose appearance and operation are specified by a graphics template expressed using one or more web-based protocols. One or more software modules, executing on a media server, identify, for a particular digital video, a markup language document which describes or identifies a customized appearance of one or more graphics to be incorporated into a presentation of particular digital video and shown to an identified audience. The markup…

Strain wave gearing provided with three-dimensional tooth profile

Granted: November 28, 2023
Patent Number: 11828356
A three-dimensional tooth profile of internal teeth in a strain wave gearing is a basic internal-teeth tooth profile at an internal-teeth outer end, and is a reduced tooth profile, in which the basic internal-teeth tooth profile is proportionally reduced only in the lateral direction, at other tooth-trace-direction positions. A three-dimensional tooth profile of external teeth is a basic external-teeth tooth profile at an external-teeth outer end, and is an increased tooth profile, in…

Actuator for physical therapy

Granted: November 21, 2023
Patent Number: 11819467
A robotic system comprising: a joint coupling a linkage to an additional linkage; and at least one cable; wherein the joint includes a motor having a shaft, a strain wave gear having a flexible member coupled to a circular spline, a conduit, and a bearing; wherein the motor is configured to rotate the shaft in a first direction and the strain wave gear is configured to rotate a rotatable member, the rotatable member including one of the flexible member or the circular spline; wherein the…

Optical rotary encoder, servo motor, and actuator

Granted: November 7, 2023
Patent Number: 11808612
In this optical rotary encoder, detection tracks of a rotating disc are irradiated with detection light emitted from a light-emitting element. An optical signal obtained via slits in the detection tracks passes through a slit pattern in a fixed slit plate and is received by light-receiving surfaces of a light-receiving element. The slit pattern in the fixed slit plate is formed so as to fit into a range of an effective spot of the detection light. An LED or other light-emitting element…

Support for a scalable and highly available (HA) service platform

Granted: October 24, 2023
Patent Number: 11799722
Supporting a scalable and Highly Available (HA) service platform. The service platform may be a virtual Cable Modem Termination System (vCMTS), a Passive Optical Network (PON), or a Broadband Network Gateway (BNG). A software component receives, from the service platform, an update about a particular unit of equipment, such as a cable modem (CM), Optical Network Unit (ONU)/Optical Network Terminal (ONT), or customer premises equipment (CPE). In response to receiving the update, the…

Bearing unit and strain wave gearing

Granted: October 17, 2023
Patent Number: 11788581
A bearing unit is provided with a strain element for torque detection. The strain element is provided with a first annular part attached to a rotation-side member, a second annular part attached to a load-side member, and a plurality of ribs serving as strained parts linking the first annular part and the second annular part together. One of an inner race and an outer race is integrally formed on the first annular part of the strain element. Deformation, which occurs in the ribs of the…

High availability and software upgrades in network software

Granted: October 3, 2023
Patent Number: 11775402
Ensuring the high availability of a Passive Optical Network (PON). A broadband network architecture comprises (a) at least a portion of optical fiber in a communication path to individual subscriber premises, (b) one or more software-implemented Optical Line Terminal (OLT) Controllers, (c) one or more software-implemented Service Provisioning Applications (SPAs), and (d) one or more software-implemented Broadband Network Gateways (BNGs). Each of the one or more OLT Controllers, one or…

Detecting imminent failure in a power supply

Granted: June 20, 2023
Patent Number: 11681344
Detecting an imminent failure of a power supply. An internal computerized component periodically reads a set of measurements from one or more sensors affixed to a power supply. The internal computerized component and power supply may reside in a variety of different technical contexts. The internal computerized component analyzes the set of measurements using, at least in part, a weighted set of factors, to detect the imminent failure in the power supply. The weighted set of factors may…

Recovery time of execution instances

Granted: June 13, 2023
Patent Number: 11675663
Recovering or restarting an execution instance. In response to detecting that a particular execution instance, in which a cable modem termination system (CMTS) software application, an optical line terminal (OLT) software application, and/or broadband network gateway (BNG) software application has failed, restarting the execution instance without adding any downstream service flow classifiers to the instance or configuring any entries of an access control list for the instance. After…

Virtual access hub

Granted: May 30, 2023
Patent Number: 11665012
A multi-tenant application that provides high speed data services to one or more subscriber devices. The multi-tenant application comprises one or more first servers that each perform packet switching and routing and one or more second servers that each perform FCAPS functions for the one or more subscriber devices. FCAPS functions comprise fault operations, configuration operations, accounting operations, performance operations, and security operations. Each of the one or more first and…

Speed ratio switching type strain wave gearing

Granted: May 30, 2023
Patent Number: 11662008
A speed ratio switching type strain wave gearing can switch the speed ratio of output rotation with respect to one input rotation into two states or multiple states with a simple configuration. The speed ratio switching type strain wave gearing includes first and second internally tooted gears, an externally toothed gear having first and second external teeth formed on the external peripheral surface thereof, a wave generator that causes the first and second external teeth to partially…

Incremental cyclic redundancy (CRC) process

Granted: May 16, 2023
Patent Number: 11652571
Performing a constant time cyclic redundancy check (CRC) over an entire packet to obtain a constant time CRC value. A first CRC is performed on an original header of the packet and a second CRC is performed on a modified header of the packet. The size of the payload of the packet is obtained. An XOR operation is performed on the results of the first and second CRC to calculate a third result. An intermediate CRC value is obtained by performing a CRC on a number of zero values…

Wave generator of strain wave gearing device

Granted: May 16, 2023
Patent Number: 11649886
An outer-ring lubrication groove pattern formed in an outer-race raceway surface and an inner-race lubrication groove pattern formed in an inner-race raceway surface of a wave generator bearing of a strain wave gearing device are patterns in which linear lubrication grooves having very small widths and depths of several micrometers or less are arranged at fine pitches of several micrometers or less. The inner-race lubrication groove pattern includes a second groove pattern formed in…

Strain wave gearing device

Granted: March 14, 2023
Patent Number: 11603918
In a strain wave gearing device, fine first and second lubricant-holding grooves for holding lubricant are formed at fine pitches in an outer-race external peripheral surface of a wave generator bearing and an outer-race-contacting internal peripheral surface portion of an externally toothed gear in contact therewith. Fine lubricant-guiding grooves for guiding the lubricant to the outer-race-contacting internal peripheral surface portion are formed at fine pitches in a second internal…

Dynamic allocation of virtual and/or physical resources vis-a-vis virtual machines in video stream processing

Granted: March 7, 2023
Patent Number: 11601650
Dynamically allocating virtual or physical 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…

Retaining legacy STB support with HFC plant migration to high split

Granted: February 21, 2023
Patent Number: 11589092
Propagating a downstream (DS) Out-of-Band (OOB) signal at a frequency receivable by a set of legacy set-top boxes (STBs) while supporting enhanced upstream peak data rates. At an input of an amplifier of a physical device, a portion of the DS-OOB signal is tapped to create a tapped DS-OOB signal, which comprises both the DS-OOB signal and all other downstream signals and channels sent from a head-end to a set of customer premises equipment (CPE) via the physical device. The tapped DS-OOB…