baber/WOPTO huggingface dataset:
Patent GB-2557750-A (GB)
Title: Class-D Amplifier Circuits
Inventor: JOHN PAUL LESSO
IPC: H03F3/217
Filed: 2013-10-23
Abstract: A class-D amplifier circuit includes an output stage 101 having at least first and second switches, a modulator 104 and a frequency controller 301. The modulator has a switching cycle frequency based on a received first clock signal FIN, and generates a switch control signal to control the duty cycles of the first and second switches within the switching cycle based on a received input signal, e.g. audio. In response to the switch control signal the frequency controller controls the first clock signal to provide first and second switching frequencies fSW, where a lower switching frequency is provided at a duty cycle corresponding to a lower output signal amplitude. The frequency controller may comprise a counter 1601 clocked by a second clock signal Ffast to produce a count value corresponding to pulse width or duty cycle of pulses in the switch control signal, the second clock frequency being greater than the first. In alternative arrangements the switching frequency may be based on the input signal SIN, volume control VOL or an envelope value. The controller may implement the transition between switching frequencies over a period of time (Figs. 9a and 9b). Switching losses in a class-D audio amplifier are reduced by reducing the switching frequency at low signal amplitudes, and output signal transients caused by a switching frequency transition are reduced using a gradual or smoothed rate of change.
Patent GB-2570445-A (GB)
Title: Drawer indicators
Inventor: CHRISTOPHER MARRIOTT
IPC: G07F17/00
Filed: 2018-01-23
Abstract: A storage system comprises a plurality of drawers 200 of different sizes. Each drawer includes a drawer handle 206 and an indication means 207. In one embodiment, the indication means is adjacent the drawer handle, and the spacing between the drawer handle and the indication means is same on all drawers. This is intended to improve the usability of the storage system to better guide the user to the correct drawer, as indicated by the indication means, by having a fixed distance between the handle and the indicator. The indication means may be a window or aperture that shows an LED mounted on a panel to the side of the drawer and upon which the drawer is mounted. The LED may indicate an operational state of the drawer and may change colour to indicate that the drawer is empty. A controller mounted on a panel may control latching of the drawers. In an alternative embodiment, the drawers include tabs 500, a unit of a predetermined shape that is repeated across the front of all drawers. The smallest drawer may have at least one tab, with larger drawers having an integer multiple of the number of tabs on the smallest drawer.
Patent GB-2571920-A (GB)
Title: Subsea module
Inventor: ROBIN SLATER
IPC: E21B47/00
Filed: 2018-02-27
Abstract: A subsea module such as a subsea control module has a housing 12 with a subsea electronics module (SEM) 20 and a logging device 30. The logging device has a battery 33, a microprocessor 32 and a memory device 34. The subsea module comprises a plurality of different sensors connected to or within the logging device, and outside the subsea electronics module. This allows for monitoring the conditions of the subsea module during transportation or installation. The sensors include at least one pressure sensor P1, a temperature sensor T and a shock sensor S. The logging device may be configured to power down at least one sensor or logging activity when considered less useful. A sensor may also be configured to wake up the microprocessor. Other sensors may be included, such as vibration V or vertically spaced water ingress sensors W1, W2.
Patent GB-2558109-A (GB)
Title: OLED luminescent device and display device
Inventor: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD
IPC: H01L51/52
Filed: 2015-10-20
Abstract: An OLED luminescent device and a display device. The OLED luminescent device comprises a cathode (1), a luminescent layer (2), an anode (3), a substrate (4), and a light extraction layer (5). The light extraction layer at least comprises a first material layer (51) and a second material layer (52). The first material layer is located on the substrate, and the second material layer is located on the first material layer. The first material layer and the second material layer are correspondingly provided with a first contact surface (511) and a second contact surface (521) that are in contact with each other. Vertical sections of the first contact surface and the second contact surface are in a mutually-nested regular zigzag form. A relationship among a refractive index of the first material layer, the refractive index of the second material layer and the refractive index of the substrate is: nfirst material layer > nsubstrate > nsecond material layer. Emission of light from the side surface of the OLED luminescent device can be decreased, the light emission amount of the luminescent surface of the OLED luminescent device can be increased, and the light out-coupling rate of the OLED luminescent device is improved.
Patent GB-2576042-A (GB)
Title: Downhole tool assembly with pressure operable valve
Inventor: Richard Earle
IPC: E21B34/08
Filed: 2018-08-03
Abstract: A downhole tool assembly 100 configured to be mounted to a tubular assembly and featuring at least one lateral bypass port 104 which is selectively openable and closable. The assembly also features a pressure operable valve 124 which is operable to provide an additional bypass path in the pressure tool assembly to thereby enable a flow of fluid towards the downhole tool assembly if a flow path downstream the pressure operable valve is blocked. Optionally, the pressure operable valve features a burst disc 136. Optionally, a tubular body defines an axial passage and features the at least one lateral bypass port and there is provided a movable element 114 in the axial passage being movable between a first position in which the at least one bypass port is closed and a second position in which the at least one bypass port is closed. Optionally, this movable member is in the form of a sliding sleeve.
Patent GB-2580882-A (GB)
Title: Virtualised gateways
Inventor: BRIAN MANULA
IPC: G06F15/173
Filed: 2018-12-03
Abstract: A system comprising a gateway for interfacing external data sources with one or more accelerators. The gateway comprises a plurality of virtual gateways, each of which is configured to stream data from the external data sources to one or more associated accelerators. The plurality of virtual gateways are each configured to stream data from external data sources so, that the data is received at an associated accelerator in response to a synchronisation point being obtained by a synchronisation zone. Each of the virtual gateways is assigned a virtual-ID so that when data is received at the gateway, data can be delivered to the appropriate gateway.
Patent GB-2579659-A (GB)
Title: Player interaction capturing system and method
Inventor: ADAM SZEKELY
IPC: H04N21/478
Filed: 2018-12-11
Abstract: A system and method for capturing player interactions with a video game to replay them. The occurrence of an event of interest is detected in a video game 100. The video of the event of interest is recorded 110, and player inputs, such as controller interactions, are also recorded 120. Content is generated comprising both the recorded video and the recorded player input 150 and both are presented during playback of the content to the viewer. A system is also provided. The content may be stored and distributed to a number of users in response to a request from those users. Game state information may be recorded 130 and analysed by a machine learning program. The event is preferably detected using a machine learning process, wherein the machine learning program is detects events of interest based on detected indicators in the player’s gameplay, such as combinations of player inputs, based on the player’s or spectator’s reactions to gameplay, or game state information.
Patent GB-2582802-A (GB)
Title: Structure for providing a physical or visual barrier
Inventor: PAUL ANTHONY RAVEN
IPC: E04H17/16
Filed: 2019-04-03
Abstract: It has a post 2 comprising a footing 20 for mounting it and an upright beam or support (figure 2, 16). The beam has at least one slot 28 or aperture for mounting at least one slat 8 into, so that the slat extends laterally from the post in both directions. The post comprises at least one plate with one of the faces of the plate comprising a hollow interior 18. At least one wedge (figure 3, 10) is used to secure the slat in place. The slot for the slat is wide enough to allow the tip of a wedge to be inserted into it. The post can have a square, rectangular, I, U or circular cross-section. The slots or notches for the slats can be tilted downwardly towards the front opening and can have teeth which engage with the slats or have a recess to receive the wedge. A barrier structure and installation method are also disclosed.
Patent GB-2582384-A (GB)
Title: Semiconductor structures
Inventor: Rkia Achehboune
IPC: H01L25/04
Filed: 2019-04-29
Abstract: A semiconductor wafer 80’ is provided which may be diced into a plurality of primary die 800. A primary die 800 comprises at least one aperture 801 extending through the primary die 800 from an upper surface of the primary die 800 to a lower surface of the primary die 800, wherein each aperture 801 is suitable for receiving a secondary die 850. The wafer 80’ may be provided on a carrier layer 830 which serves to support the wafer 80’ in the region of the opening 801 whilst a secondary die 850 is positioned within the aperture 801. The secondary die 850 may be secured within the hole 801 using moulding material. A micro-electro-mechanical (MEMS) transducer 802 may be provided on the primary die 800, the microelectromechanical transducer 802 being a microphone. The secondary die 850 may comprise a transducer die or a circuitry die.
Patent GB-2576108-A (GB)
Title: Semiconductor etching methods
Inventor: LIGANG DENG
IPC: H01S5/20
Filed: 2019-07-17
Abstract: A method of etching into one or more epitaxial layers of III-V, III-N or II-VI semiconductor material(s) in a semiconductor structure 30 is disclosed. The semiconductor structure is a vertical cavity surface emitting laser (VCSEL, Figure 2), light-emitting diode (LED, Figure 4) or photodiode (Figure 5). The method comprises process steps of establishing a flow of an etch gas mixture through a plasma processing chamber (2, Figure 1) and generating a plasma within the chamber. A radio frequency (RF) bias voltage is simultaneously applied to a support table (14, Figure 1) within the chamber on which the semiconductor structure, carrying a patterned mask 39, is placed. More than 90% of the etch gas mixture consists of a mixture of silicon tetrachloride (SiCl4) and nitrogen (N2). The etch gas mixture may comprise one or more inert gases such as helium, and preferably does not contain more than a trace level of boron trichloride (BCl3). The semiconductor material(s) may be any of GaN, GaAs, AlGaAs, InGaAs or AlInGaP.
Patent GB-2573680-A (GB)
Title: Multifunctional downhole tools
Inventor: ZHIYUE XU
IPC: E21B33/12
Filed: 2017-11-17
Abstract: A downhole assembly comprises a disintegrable article that includes a matrix material; an energetic material configured to generate energy upon activation to facilitate the disintegration of the disintegrable article; and a sensor. A method of controllably removing a disintegrable downhole article comprises disposing the downhole article in a downhole environment; performing a downhole operation; activating the energetic material; and disintegrating the downhole article.
Patent GB-2573460-A (GB)
Title: A method of establishing a cement plug in an annular region between a first and a second casing
Inventor: Craig Usher
IPC: C09K8/42
Filed: 2018-02-08
Abstract: A method of establishing a cement plug (3) in an annular region (35) between a first casing (100) and a second casing (200) in a well characterised in that the method comprises the steps of: - perforating the first casing (100) to open a flow path to the annular region (35); - providing a magnetorheological cementitious slurry (7); - inducing a magnetic field for affecting the physical properties of the magnetorheological cementitious slurry (7) and for defining a lower boundary for the cement plug (3); - feeding the magnetorheological cementitious slurry (7) into the annular region (35) through a perforation (111) in the first casing (100); and - impeding the mobility of the magnetorheological cementitious slurry (7) in the annular region (35) by exposing it to the magnetic field such that the magnetorheological cementitious slurry (7) may consolidate substantially at the lower boundary without the need for a base device (2) in the annular region (35). The disclosure further relates to a cement plug (3) substantially filling an annular region (35) between a first casing (100) and a second casing (200), a well comprising the cement plug (3), and a system for setting the cement plug (3).
Patent GB-2584921-A (GB)
Title: Photovoltaic roof covering and method of manufacture
Inventor: STEWART BROWN
IPC: E04D1/28
Filed: 2019-09-18
Abstract: The invention relates to a photovoltaic roof covering comprising a base tile 11 having an anchor portion 17 to anchor the base tile to part of a roof in use and wherein a spacer is provided to support a portion of another overlaid base tile in use by spacing the overlaid tile from the photovoltaic panel 20. Also included is a roof covering with a base tile having a first planar upper face and a second opposing lower face. The base tile comprises an anchor portion located towards one end of the second lower face of the base tile and is configured to anchor the base tile to part of a roof structure in use. A connecting portion is configured to connect the base tile to an adjacent base tile in use. The roof covering further comprises a rectilinear cover panel having upper and lower opposing faces and a width that is smaller relative to a width of the first planar upper face of the base tile. The base tile and the cover panel are arranged such that side edges of the cover panel are offset relative to side edges of the first upper planar face of the base tile. An inset is thereby created at one side edge and an overhang 22 of the cover panel at the opposing side edge, wherein the base tile and the cover portion are coupled in this offset configuration.
Patent GB-2589113-A (GB)
Title: Pressure monitor
Inventor: BENJAMIN HALL
IPC: G08B21/02
Filed: 2019-11-20
Abstract: A pressure monitor (100,fig.1) comprises an elongate housing (106,fig.1) and spine 102 for attachment to a bottom edge of a door leaf 200. The pressure monitor further comprises first and second elongate ribbon switches 104. The first and second ribbon switches 104 are responsive to a force applied in a first and second direction. The first direction is perpendicular to the plane of the door leaf 200. The second direction is parallel to the plane of the door leaf 200, or opposite to the first direction. A third elongate ribbon switch 104 may be provided for detecting forces applied in a third direction wherein the second direction is opposite the first direction and the third direction is parallel to the plane of the door leaf 200. An alert may be provided in response to a force exceeding a predetermined threshold being applied to one or more of the pressure sensors 104.
Patent GB-2579992-A (GB)
Title: Storage system using cloud storage as a rank
Inventor: LOKESH MOHAN GUPTA
IPC: G06F12/08
Filed: 2018-09-06
Abstract: A computer-implemented method for utilizing cloud storage as a rank comprises allocating storage space on one or more cloud storage devices via a cloud interface; mapping the allocated storage space to corresponding virtual local addresses; grouping the virtual local addresses to create one or more virtual local ranks from the allocated storage space on the one or more cloud storage devices; converting local data access requests for the one or more virtual local ranks to cloud data access requests configured for the cloud interface; and communicating the cloud data access requests to the one or more cloud storage devices via the cloud interface.
Patent GB-2591158-A (GB)
Title: A gearbox assembly for a vehicle
Inventor: ARTUR WOJTALIK
IPC: B62D5/04
Filed: 2020-09-08
Abstract: A gearbox, particularly for use with a power steering system, has a housing, an input shaft (60, Figure 1), an output shaft 70 to which a wheel gear 110 is fixed, a torsion bar (80, Figure 1) connecting the input shaft to output shaft 70, an electric motor (90, Figure 1), a worm gear 100 rotationally fixed to a rotor and engaging wheel gear 110 to transfer torque from the motor, and a key lock assembly. The key lock assembly has an adapter 150 with an annular inner part 160 secured to output shaft 70 on the opposite side of the worm gear to the input shaft, an annular outer part 170 of larger diameter than the inner part, a web 175 connecting inner part 160 to outer part 170, a locking collar 180 supported by the outer part of the adapter, and a key lock 190 fixed to the housing and movable between having a part engaging lock collar 180 and having the part held clear of the lock collar. The gearbox also has a seal isolating lock collar 180 from wheel gear 110.
Patent GB-2599149-A (GB)
Title: Cord stopper and methods for using and manufacturing the same
Inventor: DAVID ROBERTS
IPC: F16G11/10
Filed: 2020-09-28
Abstract: Provided is a cord stopper 10 for moving along a length of cord and releasably engaging the cord. The cord stopper 10 comprises a body 12 in which are first 16 and second 18 paths, selectable by rotating the body 12 about the cord, through which the cord can pass. A cord engagement portion 20 is provided on the first path 16, meaning that the cord is prevented from moving when the first path 16 is selected. When the second path 18 is selected, the cord stopper 10 can move freely along the cord. Also provided are a bag; an item of clothing; and climbing apparatus, each comprising cord stopper 10 and a cord 52. Also provided are a method of manufacturing the cord stopper 10, which comprises forming the body by moulding, casting, or 3D printing.
Patent GB-2599378-A (GB)
Title: Biometric skin contact sensor and methods of operating a biometric skin contact sensor
Inventor: HENRICUS DERCKX
IPC: G06V40/13
Filed: 2020-09-29
Abstract: A capacitive biometric skin contact sensor comprising: an array of capacitive sensor pixels (Figs. 4-6); a current multiplexer 110 connected to the read-out channels of the pixel array (10, Fig. 1); and a current (amplifier) mirror assembly 120, wherein the sensor is configured to control the number of read-out currents selected by the multiplexer and the gain applied by the current mirror. The read-outs of the multiplexer may be: a single pixel read-out; a combination of two or more pixels; or time multiplexed read-outs. The gain may be controlled based on the number of read-out currents selected and the read period. The number of read-outs selected may be based on the selected gain and the read period. A resolution and/or sensitivity of the sensor may be controlled by the selection of read-out number and gain. The gain of the current mirror is varied by closing switches (126-129, Fig. 1) thereby connecting transistors (122-125, Fig. 1) of different gain into the circuit. Each sensor pixel may comprise a reset circuit (Vreset, Fig. 6).
Patent GB-2603450-A (GB)
Title: Aircraft system and method
Inventor: ANDREW BILL
IPC: G01M17/02
Filed: 2020-10-30
Abstract: Provided is a computer-implemented method of compressing a data set, the data set comprising historical tire monitoring measurements, such as pressure, separated by a first time interval. The method comprises discarding measurements that are older than a first threshold age, such that measurements older than this age are retained such that they are retained at a second time interval longer than the first time interval. The method can be used in the monitoring of aircraft tires; and aims to reduce the storage capacity and processing capabilities required for processing historical tire monitoring measurements. The first time interval may be less than/equal to, 10 minutes; and the second time interval may be greater than/equal to 20 minutes. The discarding process may comprise discarding every other measurement; or discarding a predetermined number of consecutive measurements. Also provided is a computer-readable medium comprising instructions that instruct a processing system to perform this method.
Patent GB-2593260-A (GB)
Title: Coupon wafer and method of preparation thereof
Inventor: Mohamad Dernaika
IPC: H01L21/8252
Filed: 2020-12-15
Abstract: A coupon wafer comprising a device coupon 110 for use in a micro-transfer printing process used to fabricate an optoelectronic device. The coupon wafer includes a wafer substrate 224 where the device coupon is attached to the wafer substrate via a dielectric tether 222. The coupon is attached to the wafer substrate by a release layer 220 formed from a sacrificial layer which is removed by etching prior to the transfer process. The tether may additionally comprise a photoresist layer (302, fig 3A).
Patent GB-2593094-A (GB)
Title: Interaction control method for display page, and device
Inventor: YANYUN GONG
IPC: G06F16/74
Filed: 2020-01-15
Abstract: An interaction control method for a display page and a device, pertaining to the technical field of computer applications. The method comprises: acquiring a swipe operation of a user with respect to a display page and a swipe parameter corresponding to the swipe operation, wherein the display page comprises multiple display content items (101); controlling, according to the swipe operation, the display page to move, and predicting, according to the swipe parameter, a position of the current display content items in the display page when the display page stops moving (102); determining whether the position of the current display content items meets a pre-determined requirement (103); and if not, correcting the position of the current display content items, such that the position of the current display content items meets the pre-determined requirement when the display page stops moving (104). In this way, the interaction control method for a display page eliminates the influence of the strength of a swipe operation on the position of display content items in the display page, such that the display content items are always displayed at an appropriate position of the display page to improve viewing experience of users.
Patent GB-2593366-A (GB)
Title: A-annulus cementing without pumping cement
Inventor: BÅRD MARIUS JOHANSEN
IPC: E21B33/13
Filed: 2019-11-06
Abstract: A method of plugging a well, the method comprising the following steps: lowering a solid body into a wellbore by wireline; filling the space around the solid body with a liquid plugging material; wherein the solid body and the liquid plugging material together form a plug after the liquid plugging material is set.
Patent GB-2609600-A (GB)
Title: Headset
Inventor: NEIL MCINTOSH
IPC: H04R1/10
Filed: 2021-07-02
Abstract: The seal verification module verifies that a headset (10, fig 1) comprising an ear cup (12, fig 1) is correctly situated on a user’s head such that the ear cup forms an acoustic seal around the user’s ear. The seal verification module comprises an LED-illuminating indicator (24, fig 1) configured to provide an indication in response to being activated; and a pressure differential detector 28 configured to detect a pressure differential between an internal side 30 and an external side 46 of the seal verification module and to activate the indicator in response to the detected pressure differential reaching or exceeding a predetermined pressure differential associated with verifying the headset ear cup being correctly situated. The seal verification module is said to be particularly useful with hearing proctectors