baber/WOPTO huggingface dataset:
Patent GB-2421136-A (GB)
Title: Detection of code word coefficients in a watermarked image
Inventor: TAPSON DANIEL WARREN
IPC: H04N1/32
Filed: 2004-12-09
Abstract: A data processing method for detecting a watermark codeword in a received image signal representing a watermarked image is described. The watermarked image comprises a plurality of signal samples each of which represents a pixel value of the image, to which a watermark codeword coefficient value has been added. The method comprises the steps of low pass filtering the received image signal to generate, for each signal sample, a local mean value, subtracting the local mean from the received image signal to generate a residual signal comprising, for each signal sample, a residual value, and determining, from the residual signal, a local standard deviation for each signal sample. The method also comprises the step of generating, for each signal sample, a watermark strength value providing an estimate of the magnitude with which the watermark codeword coefficient has been added to the received image signal sample. The method also comprises the steps of generating, for each signal sample, a first gaussian likelihood function describing the likelihood of the watermark codeword coefficient embedded into the signal sample being positive, the first gaussian likelihood function having a mean defined by the sum of the local mean value and the watermark strength value and a standard deviation defined by the local standard deviation and generating, for each signal sample, a second gaussian likelihood function describing the likelihood of the watermark codeword coefficient embedded into the signal sample being negative, the second gaussian likelihood function having a mean defined by the difference between the local mean value and the watermark strength value and a standard deviation defined by the local standard deviation. The method can detect a watermark in the received watermark image based on the probability of the watermark codeword coefficients added to each signal sample being one of positive or negative, the probability being calculated from the first and second likelihood functions.
Patent GB-2412536-A (GB)
Title: Multipoint conferencing in an IP network
Inventor: KOGA TAKAHIRO
IPC: H04L12/54
Filed: 2005-03-17
Abstract: A multipoint conferencing system allows a conference to be held among a plurality of terminals capable of making communication via an IF network. The system includes a telephone conference server for recognizing, out of the plurality of terminals, a terminal participating in the conference as a terminal belonging to either a speaker group 5 or a listener group 6, and for generating audio data by mixing audio data from the terminals belonging to the speaker group. An audio delivering section 3 delivers the audio data which was mixed to terminals belonging to the speaker group and the listener group. The terminal can be moved between the speaker group 5 and the listener group 6.
Patent GB-2429356-A (GB)
Title: Colour error correction after composite colour coding demodulation
Inventor: WESTON MARTIN
IPC: H04N9/64
Filed: 2005-08-17
Abstract: This invention concerns the correction of errors arising from defective composite colour processing in video signals or data derived from a coding method using periodic phase reversal of a colour difference signal. Sets of colour difference values from reversed and un-reversed parts of an image are used to derive a statistical estimate of composite decoding demodulation phase error. The estimated phase error can be used to modify the demodulation phase of a composite decoder, or can be used to perform a rotational transform to correct the phase error. A luminance value associated with each said set of colour difference values may additionally be used to correct differential phase distortion.
Patent GB-2421280-A (GB)
Title: Two-stroke engine with an intake air channel having a throttle member
Inventor: OSBURG GERHARD
IPC: F02B25/22
Filed: 2005-12-13
Abstract: A two-stroke engine 1 has a cylinder 2 and a combustion chamber 3 delimited by a reciprocating piston 5 that drives a crankshaft 7 rotatably supported in a crankcase 4. The crankcase 4 in predetermined positions of the piston 5 is connected by at least one transfer channel 8, 9 to the combustion chamber 3. The engine 1 has a mixture channel 10 for supplying a fuel/air mixture and an air channel 11 that supplies substantially fuel-free air to the transfer channel 8, 9. In order to allow simple adjustment of an air channel to different two-stroke engines, at one end face 46, 47 of a component in which the air channel 11 is formed, a throttle member 27, 28, 35, 75, is arranged that throttles the air flow through the air channel in at least one operating state of the engine. Also disclosed is a two-stroke engine with an air channel which has a throttle member embodied as a fixed aperture, where the cross-section of the aperture is matched to the displacement of the engine.
Patent GB-2423123-A (GB)
Title: Transmission controller with control dial having two speed matching zones
Inventor: SZYMCZAK DOMINIQUE
IPC: B60K31/06
Filed: 2006-01-30
Abstract: A transmission controller in a multi-ratio tractor transmission comprises a control dial 40 which is rotatable in one direction from a central position 43 into a working zone 42 in which speed matching for field work is selected and when rotated in second direction into a road working zone 44 speed matching for road use is selected. The tractor overall transmission comprises an epicyclic transmission (11, fig 1) that provides six ratios and a synchromesh gearbox (12) which provides four range ratios. When the control dial 40 is in one of the respective speed matching zones 42, 44 and a range change occurs in the synchromesh gearbox (12) the ratio in the epicyclic transmission (11) is also adjusted to ensure that the ratio provided by the overall transmission is the next overall ratio in the transmission. If the dial 40 is rotated into zones 47, 48 the transmission operates as an automatic transmission, but speed changes between engine speeds of 1600-2200 rpm can still be selected by a driver.
Patent GB-2434903-A (GB)
Title: Wireless authentication module including a memory holding user personal information
Inventor: GYDESEN PETER E
IPC: G06F21/00
Filed: 2006-01-31
Abstract: A module (200) includes a memory for storing user personal information required for authenticated operation by the user of a shared device (100) and includes a wireless transmitter operable to send user information to the shared device (100), by wireless communication, to authenticate personal operation of the shared device (100) by the user. The shared device may be a radio for use by emergency services personnel and the module may be provided with means (205) for attachment to a belt, keyring or person. The module may also comprise a receiver for receiving information for storage in the memory and may further comprise a wired connection (213) for connection to a computer. Authentication may require input of a PIN by a user, and transmissions may be encrypted.
Patent GB-2444726-A (GB)
Title: Interlocking sections for forming seating unit for manhole cover
Inventor: EVANS RICHARD
IPC: E02D29/12
Filed: 2006-03-29
Abstract: The interlocking sections 2,4,6,8, for forming the seating unit to support a manhole cover frame on top of a concrete covering slab, are each provided with male 19 and female joint portions to enable a number of sections to be interlocked to form the seating unit. The joint portions are preferably mortise joints. The abutment surfaces of the sections are preferably roughened or recessed to facilitate engagement with mortar. The sections may be reinforced.
Patent GB-2437265-A (GB)
Title: Quick release device for ratchet tools
Inventor: LIN TSUNG-DA
IPC: B25B13/46
Filed: 2006-04-19
Abstract: A ratchet tool includes a bar 50 movably received in an operation space 211 defined between an inner periphery of a cylindrical space 101 in the head 10 of the ratchet tool and a flat surface 21 defined in an outer periphery of the cylindrical body 20 of the driving mechanism. The bar is pushed toward two wedge-shaped areas in the operation space to control the effective direction of the driving mechanism. The bar is pushed to either one of the two wedge-shaped areas by two positioning units 42 which are movably received in the cylindrical body. The two positioning units are shifted alternatively by a shifting member 40 mounted on the rod of the quick release device which controls a bead 222 for securing a socket mounted on the driving member 22 of the driving mechanism. The effective directions and the socket release are both controlled by one-time operation of the quick release device.
Patent GB-2423114-A (GB)
Title: Floor table of a concrete mould and device for displacing a floor table
Inventor: SCHWOERER ARTUR
IPC: E04G11/38
Filed: 2004-11-03
Abstract: A floor table (1) of a concrete mould for producing a concrete floor (2), comprising at least one front (18,19) and one rear holder (23) for fixing at least one front (11) and at least one rear billet (12) of a crane harness (9), characterized in that when the floor table (1) is in a disengaged and retracted state underneath a recently hardened concrete floor (2), it is possible to have access to the holders (18,18,23) which are used to fix the billets (11,12). The inventive floor table can be drawn out of the floor and displaced with less danger to the fitters and requiring less effort in comparison with known floor tables.
Patent GB-2425442-A (GB)
Title: A participant response system and method
Inventor: KNOWLES ANTHONY MICHAEL
IPC: H04H60/31
Filed: 2002-08-15
Abstract: A translation system is disclosed for translation during event participation by event participants, the system comprising: a plurality of participant handsets; at least one translator handset for use by a translator; and a control system for controlling the wireless communication of audio between said participant handsets and said at least one translators handset, said control system being adapted: to control a controller of a first said participants handset to allow a participant to speak by controlling the participant's handset wireless module to transmit audio in a first language spoken by the participant over a first communication channel designated for the first language, to control a controller of a said translators handset to allow a translator to listen to the audio in the first language and to input audio in the second language by controlling the translators handset wireless module to receive audio in the first language using the first communication channel and to transmit audio in the second language using the second communication channel, and to control a controller of a second said participants handset to allow a participant to listen by controlling the participants handset wireless module to receive audio in the second language spoken by the participant over the second communication channel.
Patent GB-2431449-A (GB)
Title: Roller chain link plate and manufacturing method
Inventor: MIYAZAWA TOSHIHIKO
IPC: B21D28/16
Filed: 2006-09-11
Abstract: A method of manufacturing a link plate for a roller chain, and the resulting link plate in which the link plate has a shape comprising a pair of right and left pin holes, a pair of right and left half arcs 114, 116, which are spaced outwardly from the pin holes respectively, and a pair of upper and lower straight line portions 118, 120 connecting both ends of the pair of right and left half arcs. There are shaved lengths along the pair of upper and lower straight line portions extending into the half arcs, the shaved length extending between the outermost positions of both ends of said pin holes (P+Hd).
Patent GB-2436001-A (GB)
Title: Abrasion resistant material
Inventor: KALANTAR-HARMOZI ALIREZA
IPC: E21B17/10
Filed: 2006-11-13
Abstract: An abrasion resistant material (1) is comprised of a flexible mesh-like structure (2) and a plurality of beads 3). The mesh-like structure is in the form of a sheet, of a predetermined thickness and can be supplied in roll form, and has an openwork, net-like appearance formed by the presence of a number of openings (4). The size of openings (4) corresponds to the size of beads (3), such that each opening is able to receive a bead (3) which is held in position in the mesh-like structure. In the depicted embodiment the beads are of a substantially spherical shape, although these may be ellipsoid or polyhedral. The beads may be formed of ceramic, metal, glass or polymeric material and the mesh may be formed of natural or synthetic fabric, polymer, metal or ceramic materials. Applications include a material for use as a centralizer in drilling operations, construction materials including heat and sound insulation material, anti-static material and therapy/massage applications.
Patent GB-2448928-A (GB)
Title: DC power transmission in a well borehole
Inventor: NEUHAUS CHRISTOPH
IPC: H02J1/06
Filed: 2007-05-04
Abstract: A power transmission system for use with downhole equipment in a borehole permits the use of switched reluctance motors for driving electric submersible pumps. The system comprises a power source 10 and converter 12 positioned at the surface providing a DC power supply, preferably at medium voltage, and a downhole DC/DC converter 16, connected to the power source 10 by a two-conductor cable 14, which is thinner and lighter than the conventional AC three phase cable. The converter 16 preferably outputs a lower voltage than the medium voltage. The switched reluctance motor allows more accurate start-up control and reverse operation for cleaning. When not in use, the motor may continue rotating at very low speed and its power consumption may be used to determine the viscosity of the well fluid.
Patent GB-2439939-A (GB)
Title: Piped conveyor
Inventor: ARMSTRONG GAVIN CAMPBELL
IPC: B65G41/00
Filed: 2007-05-09
Abstract: A piped conveyor includes an endless conveyor with both its feed 42 and return 43 portions enclosed in a pipe 44, with a drive for driving the belt and a return idler, with the feed portion above the return portion and the feed portion cupped by the pipe, the pipe 44 preferably being of plastic material and supported by a steel half pipe 45 under the plastic pipe. The conveyor may also include a means for grinding the conveyor to size.
Patent GB-2449445-A (GB)
Title: A keypad with random assignment of numbers and a limited viewing angle
Inventor: ROBERTS ANITA
IPC: G06F21/00
Filed: 2007-05-22
Abstract: A numeric keypad and associated software, which accepts customer pin numbers for credit or debit card onto a. standard size and shape numeric keypad. The allocation of each number against a key on the pad is randomly changed between transactions. Thus customers with the same pin number would appear to be pressing different keys when typing in their pin numbers. The numbers allocated for the transaction may only be viewed through a limited viewing angle by using a Fresnel.. When the customer has completed their transaction the numbers will disappear to provide maximum security for the public. When the next customer inserts their card and this card is validated, a different random pattern of numbers will allocate across the keypad.
Patent GB-2450531-A (GB)
Title: RFID Monitoring system
Inventor: THOMAS ROBERT VICTOR
IPC: G01V15/00
Filed: 2007-06-29
Abstract: A radio frequency identification (RFID) monitoring system (12) for monitoring a plurality of RFID tags, e.g. monitoring a plurality of vials incorporating such tags and stored at a low temperature, (eg. -80{C) within a storage unit (10), for example a freezer. The RFID system (12) comprises an RFID reader (28) and at least one antenna (34a-i) for transmitting and receiving RF signals to communicate with the RFID tags. The system (12) further includes an electronic switch (38), preferably a FET switch, interposed between the RFID reader and the at least one antenna (34a-i) which is controlled to automatically intermittently and selectively connect a particular antenna (34a-i) to the RFID reader (28) and transmit RF signals from the antenna (34a-i) to the RFID tags. The system enables an RFID tag to operate at low temperatures. Preferably the switch (38) and antenna (34a-i) are integrated together, and in particular integrated into a shelf (22) of the storage unit (10).
Patent GB-2452974-A (GB)
Title: A metatarsal impact protector
Inventor: BUSE ANDREW PHILLIP
IPC: A41D13/06
Filed: 2007-09-21
Abstract: A metatarsal impact protector that is detachably attached to the forefoot of the wearer and distributes the impact a wearer might receive while playing sport over a wider area, thereby reducing breakages and heavy bruising. Preferably the protector is made from breathable foam material (1, fig 3) with a flexible plastic inner (2, fig 3) with elastic straps 2 to hold the protector in place. Preferably the protector is anatomically designed to flex around the foot and made in different sizes. Preferably the protector is worn on the foot like a sock.
Patent GB-2453107-A (GB)
Title: Annular grinding ring
Inventor: SADLER CHRISTOPHER ERIC
IPC: B02C15/00
Filed: 2007-09-25
Abstract: An annular ring 10 has a radially outward facing peripheral surface 12 and a radially inwardly facing surface 14. The peripheral surfaces 12, 14 are joined by upper 16 and lower 18 surfaces. The outer peripheral surface 12 is substantially flat and is substantially parallel with the axis A of the ring 10. The inner peripheral surface 14 is inclined relative to the axis A. The ring 10 also includes a plurality of projections 20, each of which is connected to the radially inwardly facing peripheral surface 14. The projections 20 are equally spaced from each other about the axis A of the ring 10. Each projection 20 extends away from the inwardly facing peripheral surface 14 generally radially towards the axis A of the ring 10. A lower surface of each projection 20 includes a recess 22 to receive part of a lifting member.
Patent GB-2440476-A (GB)
Title: Charger having non-orthogonal coupling rails
Inventor: ZEDELL KARL
IPC: H02J7/00
Filed: 2007-11-09
Abstract: A battery charger (705) with an improved battery retention system is provided. The battery charger (705) includes at least one pocket (700) having a bottom (706) and sidewalls (707-709). A pair of battery engagement rails, or coupling rails, (701, 704) extends outward into the pocket (700) at an angle that is non-orthogonal with the sidewalls (707-709). These non-orthogonal rails (701, 704), which may include embedded electrical contacts, mate with non-orthogonal female slots (407, 408) in a battery pack housing (400). The non-orthogonal angle prevents lateral forces applied to the battery from causing intermittent electrical connections between the battery pack (400) and the charger (705). Additionally, the non-orthogonal angle of the rails (701, 704) allows batteries of various sizes to be inserted into the pocket (700) while ensuring a consistent and reliable electrical connection.
Patent GB-2461244-A (GB)
Title: Network congestion control with feedback to adjust flow rates of source nodes.
Inventor: KELLY FRANCIS P
IPC: H04L12/56
Filed: 2008-02-29
Abstract: One embodiment comprises a router for a communication network configured to store local information relating to the router, and communicate rate control data to the sources of the flows so that sources adjust their flow rates. Another embodiment of the invention relates to congestion control for a communication network which may be designed to be compatible with a wide variety of buffer sizing regimes, particularly small buffers, for routers in the network. Each router may comprise a processor which is configured to store an internal feedback variable indicative of an aggregate flow rate of all data flows at said router; detect a new data flow/change in weight allocated to a data flow; determine any required adjustment to said internal feedback variable and to said flow rates of existing data flows at said router to accommodate said new flow/change in weight at a defined flow rate; adjust said internal feedback variable, responsive to said determining step; and communicate said defined flow rate to said sources (new flow and existing data flows). Aspects of the invention include the local information including aggregate flow rate, queue length, bandwidth of router, average data.
Patent GB-2458271-A (GB)
Title: Converting sewage to useful products
Inventor: SALIS CLIVE ANTHONY FANE DE
IPC: B09B3/00
Filed: 2008-03-10
Abstract: A process and apparatus for converting a sewage containing feedstock into at least one useful product, wherein the process comprises the steps of: <SL COMPACT=COMPACT> <LI>a) adding a hydrocarbon containing solvent to the feedstock; <LI>b) heating the solvent and feedstock under pressure to obtain the at least one useful product. </SL> The sewage may be municipal sewage from any source, the hydrocarbon containing solvent may be tetralin, phenanthrene or diesel and the heating step can take place at temperatures of 280 to 440 degrees centigrade. The product may be a mixture of hydrocarbons, such as fuel gas or an oil product.
Patent GB-2449215-A (GB)
Title: Welded steel pipe with UTS of 1750 N/mm2 or more
Inventor: SATOU MOTOO
IPC: C21D6/00
Filed: 2008-03-14
Abstract: An electric resistance welded steel pipe manufactured from steel sheet containing (by mass) : 0.2-0.4% C, 0.05-0.5% Si, 0.5-2.5% Mn, 0.025% or less P, 0.01% or less S, 0.01-0.15% Al, 0.01-2% Cu, 0.05-2% Cr, 0.005-0.2% Ti, 0.0002%-0.005% B, optionally one or more of: 0.002-0.2 % Nb, 0.005-0.5% V, 0.005-0.5% Zr, 0.02-1% Mo, 0.05-3 % Ni, 0.0005-0.005% Ca, with the remainder being iron and inevitable impurities. The steel pipe has a tensile strength of 1750 N/mm<2> or more, a 0.1%-proof stress of 1320 N/mm<2> or more and a Charpy impact value at -40{C of 50 J/cm<2> or more. The product is made by electric resistance welding steel sheet into a pipe, induction heating to a temperature between Ac3 and 950{C, quenching at a rate of at least 100{C/sec (e.g. by water) and then tempered for 1-60 minutes at a temperature in the range 100-250{C.
Patent GB-2448252-A (GB)
Title: Smart compensator
Inventor: ALEKSANDERSEN JOSTEIN
IPC: F16L55/128
Filed: 2006-12-06
Abstract: The present invention regards a protection device for elements operated by pressure in an external fluid, for instance valve devices, transmitters, fluid cylinders etc. A control fluid connection (12, 13) connects the external fluid source and the elements, wherein there in the control fluid connection is positioned a barrier system (10) , comprising a movable barrier (11) and an internal fluid within the fluid connection between the movable barrier and the element, transferring the pressure in the external fluid but preventing the external fluid from contact with the element.
Patent GB-2449582-A (GB)
Title: Fracturing or sand control using spherical lightweight polyamide particulates
Inventor: GUPTA D V SATYANARAYANA
IPC: C09K8/00
Filed: 2007-03-06
Abstract: A method of treating a formation and or a wellbore involves fracturing or sand control using spherical lightweight polyamide particulates. The particulates may be nylon-6,6 and can be unfilled or filled with a non-reactive filler of various claimed types. The particulates may be neutrally buoyant in a carrier fluid which can be fresh water, salt water, brine or gas. The particulates may be used as a proppant.
Patent GB-2450820-A (GB)
Title: Diluent-enhanced in-situ combustion hydrocarbon recovery process
Inventor: AYASSE CONRAD
IPC: E21B43/00
Filed: 2007-02-27
Abstract: A modified process for recovering oil from an underground reservoir using the toe-to-heel in situ combustion process. A diluent, namely a hydrocarbon condensate, is injected within a horizontal weltbore portion, preferably proximate the toe, of a vertical-horizontal well pair, or alternatively into an adjacent injection well, or both, to increase mobility of oil.