Abstract: The disclosed invention makes use of a wheel speed signal to detect a wheel anomaly such as a loose wheel or a wheel with zero pressure. The wheel speed signal is used as a basis to determine a first and a second detection signal. A further basis for determining the first and second detection signals are a first and second reference signal, respectively. The anomaly of e.g. a loose wheel is detected, according to the teaching of the invention if at least one of the detection signals exceeds a threshold. In particular, the disclosure relates to methods, systems and computer program products to achieve the mentioned objective.

Abstract: A wellhead system includes a wellhead assembly which is generally tubular, a landing string assembly, and an orientation sensor assembly which is mounted on the landing string assembly. The wellhead assembly is secured to a top of a borehole and has an orientation engagement part. The landing string assembly is lowered into the wellhead assembly to land in the wellhead assembly. The landing string assembly has an orientation part with an orientation feature. The orientation engagement part of the wellhead assembly corresponds to the orientation feature. As the landing string assembly is lowered into the wellhead assembly, the orientation feature engages with the orientation engagement part to rotate the landing string assembly about its longitudinal axis into a desired orientation relative to the wellhead assembly. The orientation sensor assembly measures an angular rotation of the landing string assembly about its longitudinal axis.

Abstract: A wellhead system includes a wellhead assembly which is generally tubular, a landing string assembly, and an orientation sensor assembly which is mounted on the landing string assembly. The wellhead assembly is secured to a top of a borehole and has an orientation engagement part. The landing string assembly is lowered into the wellhead assembly to land in the wellhead assembly. The landing string assembly has an orientation part with an orientation feature. The orientation engagement part of the wellhead assembly corresponds to the orientation feature. As the landing string assembly is lowered into the wellhead assembly, the orientation feature engages with the orientation engagement part to rotate the landing string assembly about its longitudinal axis into a desired orientation relative to the wellhead assembly. The orientation sensor assembly measures an angular rotation of the landing string assembly about its longitudinal axis.

Abstract: A low power SRAM (static RAM) for an image sensor includes a voltage generation circuit for providing a positive supply voltage VP and a negative supply VN, wherein VDD>Vp>Vn>Vgnd; a plurality of memory cells coupled to a respective plurality of column sense lines in a pixel array, the plurality of memory cells receiving differential inputs dp and dn; and a Gray counter coupled to switchably couple VP and VN to the differential inputs dp and dn of the plurality of memory cells. A method of operating an image sensor with a low power SRAM includes acquiring an image by the image sensor; generating VP and VN such that VDD>VP>VN>Vgnd; receiving an output g of a column of pixels at a clock input of a memory cell; and switchably coupling VP and VN to the differential inputs dp and dn of a plurality of memory cells in the SRAM according to a codeword from a Gray counter.

Abstract: A low power SRAM (static RAM) for an image sensor includes a voltage generation circuit for providing a positive supply voltage VP and a negative supply VN, wherein VDD>Vp>Vn>Vgnd; a plurality of memory cells coupled to a respective plurality of column sense lines in a pixel array, the plurality of memory cells receiving differential inputs dp and dn; and a Gray counter coupled to switchably couple VP and VN to the differential inputs dp and dn of the plurality of memory cells. A method of operating an image sensor with a low power SRAM includes acquiring an image by the image sensor; generating VP and VN such that VDD>VP>VN>Vgnd; receiving an output g of a column of pixels at a clock input of a memory cell; and switchably coupling VP and VN to the differential inputs dp and dn of a plurality of memory cells in the SRAM according to a codeword from a Gray counter.

Abstract: The present invention provides a multilayer stretch film comprising at least one core layer arranged between two exterior layers, wherein the thickness of the film is in the range of 5-40 ?m, and wherein the film comprises a recycled post-consumer waste polyethylene material at a content of from 10 to 90% by weight based on the total weight of the film.

Abstract: A system for determining a tire change status in a vehicle is provided. The system includes at least one processing device and a storage device. The at least one processing device may be arranged to: calculate a value of at least one reference parameter which may be used in indirect tire pressure monitoring; store the calculated value of said at least one reference parameter in the storage device; retrieve a previously stored value of said at least one reference parameter from the storage device; determine a similarity parameter based on a similarity between the calculated value and the previously stored value of said at least one reference parameter; and determine a tire change status, indicating whether or not the tires have been re-filled or replaced, by comparing said similarity parameter with a threshold.

Abstract: Methods, apparatuses and computer program products for estimating absolute wheel roll radii and/or a vertical compression value of wheels of a vehicle are disclosed, wherein yaw rates of the vehicle, wheel speeds of first and second wheels, and optionally lateral acceleration of the vehicle are measured and used as a basis for the estimation.

Abstract: The invention relates to a system for arranging electronic control units (ECUs) in a chassis of a vehicle. The system comprises a set of ECUs arranged on corresponding circuit boards that are arranged in corresponding casing members. Each casing member comprises a frame structure extending circumferentially in a plane substantially parallel to its corresponding layer. Each circuit board extends in a plane substantially parallel to its corresponding layer and is arranged inside the frame structure of the corresponding casing member. First and second end plates are arranged at opposite end portions of the layered structure. The first end plate is adapted to be connected to the chassis of the vehicle, and at least one connection member extends along the layered structure between opposite end portions thereof. The at least one connection member is configured to be connected to the first and second end plates to hold the layered structure together.

Abstract: The invention relates to a system for arranging electronic control units (ECUs) in a chassis of a vehicle. The system comprises a set of ECUs arranged on corresponding circuit boards that in turn are arranged in corresponding casing members Each casing member comprises a frame structure extending circumferentially in a plane substantially parallel to its corresponding layer. Each circuit board extends in a plane substantially parallel to its corresponding layer and is arranged inside the frame structure of the corresponding casing member. First and second end plates are arranged at opposite end portions of the layered structure. The first end plate is adapted to be connected directly or indirectly to the chassis of the vehicle, and at least one connection member extending extends along the layered structure between the opposite end portions thereof. The at least one connection member is configured to be connected to the first and second end plates so as to hold the layered structure together.

Abstract: A threshold detection circuit includes a plurality of capacitors. A plurality of switching circuits is coupled to the capacitors such that a first end of each of the capacitors is coupled to a corresponding photon sensor during detection intervals, and the first end of each capacitor is coupled to a variable initialization value during reset intervals. A threshold number of the capacitors are initialized to a first value and the remaining capacitors are initialized to a second value during reset intervals. A comparator is coupled to a second of the capacitors to generate a detection event in response to the threshold number of photon sensors sensing one or more incident photons during detection intervals.

Abstract: A system for determining a tire change status in a vehicle is provided. The system includes at least one processing device and a storage device. The at least one processing device may be arranged to: calculate a value of at least one reference parameter which may be used in indirect tire pressure monitoring; store the calculated value of said at least one reference parameter in the storage device; retrieve a previously stored value of said at least one reference parameter from the storage device; determine a similarity parameter based on a similarity between the calculated value and the previously stored value of said at least one reference parameter; and determine a tire change status, indicating whether or not the tires have been re-filled or replaced, by comparing said similarity parameter with a threshold.

Abstract: A threshold detection circuit includes a plurality of capacitors. A plurality of switching circuits is coupled to the capacitors such that a first end of each of the capacitors is coupled to a corresponding photon sensor during detection intervals, and the first end of each capacitor is coupled to a variable initialization value during reset intervals. A threshold number of the capacitors are initialized to a first value and the remaining capacitors are initialized to a second value during reset intervals. A comparator is coupled to a second of the capacitors to generate a detection event in response to the threshold number of photon sensors sensing one or more incident photons during detection intervals.

Abstract: The present invention relates to the detection of a short term irregularity under a driving vehicle having a first wheel, by determining a first sensor signal indicative of time dependent vibrations at the first wheel, using a first sensor; determining a second sensor signal indicative of a vertical movement the vehicle chassis, using a second sensor; and detect a short term irregularity of a road surface under the driving vehicle based on the first sensor signal and the second sensor signal.

Abstract: Methods, apparatuses and computer program products for estimating absolute wheel roll radii and/or a vertical compression value of wheels of a vehicle are disclosed, wherein yaw rates of the vehicle, wheel speeds of first and second wheels, and optionally lateral acceleration of the vehicle are measured and used as a basis for the estimation.

Abstract: An example apparatus for random sampling for horizontal noise reduction includes readout circuitry coupled to receive image data from an array of pixels, the readout circuitry including a plurality of sample and hold (S&H) circuits coupled to respective ones of a plurality of bitlines to sample and hold the image data in response to a plurality of S&H control signals, each of the plurality of S&H circuits including an S&H capacitor and an S&H switch. The S&H capacitor samples and holds respective image data, and the S&H switch coupled between a respective bitline and the respective S&H capacitor, and further coupled to receive a respective one of the plurality of S&H control signals to open/close the S&H switch, where each of the plurality of S&H switches are opened to decouple their respective S&H capacitors from the respective bitlines at a different time.

Abstract: An example apparatus for random sampling for horizontal noise reduction includes readout circuitry coupled to receive image data from an array of pixels, the readout circuitry including a plurality of sample and hold (S&H) circuits coupled to respective ones of a plurality of bitlines to sample and hold the image data in response to a plurality of S&H control signals, each of the plurality of S&H circuits including an S&H capacitor and an S&H switch. The S&H capacitor samples and holds respective image data, and the S&H switch coupled between a respective bitline and to the respective S&H capacitor, and further coupled to receive a respective one of the plurality of S&H control signals to open/close the S&H switch, where each of the plurality of S&H switches are opened to decouple their respective S&H capacitors from the respective bitlines at a different.

Abstract: A novel image sensor includes error detection circuitry for detecting sequencing errors. In a particular embodiment a pattern is inserted into a captured image and an image processor detects sequencing errors by determining a location of the pattern. In a more particular embodiment, the image sensor includes a pixel array, arranged in columns and rows. A row select signal is encoded as a bitwise signal, and the bitwise signal is decoded by a multi-input AND gate associated with a particular column of the image sensor, based on a relationship between rows and columns of the pixel array. The relationship determines the pattern asserted into the captured image.

Abstract: A novel image sensor includes error detection circuitry for detecting sequencing errors. In a particular embodiment a pattern is inserted into a captured image and an image processor detects sequencing errors by determining a location of the pattern. In a more particular embodiment, the image sensor includes a pixel array, arranged in columns and rows. A row select signal is encoded as a bitwise signal, and the bitwise signal is decoded by a multi-input AND gate associated with a particular column of the image sensor, based on a relationship between rows and columns of the pixel array. The relationship determines the pattern asserted into the captured image.

Abstract: Provided are a method and to a wet scrubber for removing particles from gas. The wet scrubber includes a second vertical cylindrical vessel having a second upper end for receiving an accelerated stream of liquid- and particles-laden gas from a vertically oriented venturi channel and a second lower end for feeding the accelerated stream of liquid- and particles-laden gas to a swirl generator. The second vertical cylindrical vessel and the swirl generator are arranged in a vertical cylindrical separation space of a first vertical cylindrical vessel. The swirl generator is arranged above the liquid tank.