Patent application number | Description | Published |
20090161259 | Asymmetric Load Beam for Improving Resonance Performance of Hard Disk Drive Suspension - A structure for a load beam used in hard disk drive devices includes an asymmetric structure. The load beam exhibits longitudinal asymmetry (i.e., is asymmetric along its long axis) in regard to the weight distribution, but has a center of mass that lies along its longitudinal axis due to the provisioning of counterbalancing features, such as the addition of material, the removal of material, or a combination of adding material and removing material, or the use of an asymmetrical damping layer. | 06-25-2009 |
20090168249 | FLEXURE BASED SHOCK AND VIBRATION SENSOR FOR HEAD SUSPENSIONS IN HARD DISK DRIVES - Systems and methods for flexure based shock and vibration sensor for head suspensions in hard disk drives. Specifically, this invention deals with operational shock and vibration management within a hard disk drive. In one implementation, the assembly includes a circuit embedded optical waveguide sensor that includes a flexible electrical circuit board with a configuration of either a single or multi layers of conductor traces, a thin flexure gimbal for carrying and flying a HDD slider, a consecutive sensing layer constructed by an optical core and by clad construction with a configuration of either a single core array or a plural core array, an optical loop formed by light input and an output core, optical grating disposed on the consecutive sensing layer forming an optical grating waveguide sensor, a light emitter for injecting light into the optical core, and a receiver receiving the output light from the optical core. | 07-02-2009 |
20100046351 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - Disclosed are various techniques for reduction of the magnitude of the residual stress in the HDD gimbal circuits, or more specifically, the residual plastic strain. Various trace structures of the gimbal circuits as well as stress suppressors are utilized to achieve the reduction of the residual stress in the circuit. | 02-25-2010 |
20100195951 | MULTI-LAYER STRUCTURE AND METHOD FOR MANUFACTURING THE SAME - A multi-layer structure and a method for manufacturing the multi-layer structure are provided. The multi-layer structure includes: a waveguide including one or more light coupling regions having a refractive index gradient; at least one organic material based active optical element disposed above the waveguide; wherein the one or more light coupling regions is configured to change characteristics of light propagating in the waveguide; wherein at least one of the one or more light coupling regions is configured to enhance light coupling between the waveguide and the active optical element. | 08-05-2010 |
20100195952 | MULTI-LAYER STRUCTURE - A multi-layer structure is provided. The multi-layer structure includes: a waveguide including a light coupling arrangement, wherein the light coupling arrangement is substantially non-wavelength selective; at least one light source disposed above the waveguide; and at least one photo detector disposed above the waveguide; wherein the at least one light source, the at least one photo detector and the waveguide include organic material, and wherein the waveguide, the light coupling arrangement, the at least one light source and the at least one photo detector are monolithically integrated. | 08-05-2010 |
20100196588 | METHOD OF MANUFACTURING A MULTI-LAYER STRUCTURE - A method of manufacturing a multi-layer structure is provided. The method may include forming a waveguide on a substrate; forming a light coupling arrangement in the waveguide, wherein the light coupling arrangement is substantially non-wavelength selective; forming at least one light source above the waveguide; and forming at least one photo detector above the waveguide. The at least one light source, the at least one photo detector and the waveguide comprise organic material. The waveguide, the light coupling arrangement, the at least one light source and the at least one photo detector are monolithically integrated. | 08-05-2010 |
20120190944 | DEVICES AND METHODS FOR NON-INVASIVE OPTICAL PHYSIOLOGICAL MEASUREMENTS - An optical measurement device and method of use provides non-invasive physiological measurements from a predetermined location on a body part of a user. The optical measurement device provides an illumination and detection assembly configured to generate and detect light of a predetermined wavelength range in the form of a photoplethysmography (PPG) signal, as well as a pressure detection assembly configured to detect an amount of pressure applied to the measurement device by the user being measured. A feedback unit, such as a portable display device, provides the user real-time feedback of the detected PPG signal and level of applied pressure so that the user may adjust the amount of applied pressure to improve the quality of the detected PPG signal. | 07-26-2012 |
20120200959 | FLEXURE BASED SHOCK AND VIBRATION SENSOR FOR HEAD SUSPENSIONS IN HARD DISK DRIVES - Systems and methods for flexure based shock and vibration sensor for head suspensions in hard disk drives. Specifically, this invention deals with operational shock and vibration management within a hard disk drive. In one implementation, the assembly includes a circuit embedded optical waveguide sensor that includes a flexible electrical circuit board with a configuration of either a single or multi layers of conductor traces, a thin flexure gimbal for carrying and flying a HDD slider, a consecutive sensing layer constructed by an optical core and by clad construction with a configuration of either a single core array or a plural core array, an optical loop formed by light input and an output core, optical grating disposed on the consecutive sensing layer forming an optical grating waveguide sensor, a light emitter for injecting light into the optical core, and a receiver receiving the output light from the optical core. | 08-09-2012 |
20120229934 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - Disclosed are various techniques for reduction of the magnitude of the residual stress in the HDD gimbal circuits, or more specifically, the residual plastic strain. Various trace structures of the gimbal circuits as well as stress suppressors are utilized to achieve the reduction of the residual stress in the circuit. | 09-13-2012 |
20140285926 | COPPER RESIDUAL STRESS RELAXATION REDUCTION MEANS FOR HARD DISK DRIVE SLIDER GIMBALS - A hard drive gimbal trace circuit includes: a stainless steel gimbal strut (SGST) configured to support a transducer and nullify a natural pitch angle of a flexure from mechanical-coarse adjustment of the SGST; traces forming a trace structure, and being plastically deformed at a high strain region from the mechanical-coarse adjustment of the SGST; and a first protrusion and a second protrusion being at least partially disposed under the high strain region. The SGST has an edge which is disposed on the transducer side to be spaced apart from the traces in the high strain region and extends substantially parallel to the traces. The first protrusion and the second protrusion extend from the edge in an orthogonal direction to an extending direction of the traces and across the traces, and are disposed side by side in the extending direction of the traces. | 09-25-2014 |
Patent application number | Description | Published |
20090196544 | WAVEGUIDE SENSOR FOR SENSING - A waveguide sensor according to an embodiment of the present invention includes: a substrate; a first underclad arranged on one side of the substrate; a first sensing core arranged on outer side of the first underclad and having a stripe pattern which extends in one direction; a first overclad arranged on outer side of the first sensing core; a second underclad arranged on another side of the substrate; a second sensing core arranged on outer side of the second underclad and having a stripe pattern which extends in a direction not parallel to the direction in which the first sensing core extends; and a second overclad arranged on outer side of the second sensing core. A first grooved part which extends in a direction not parallel to the direction in which the first sensing core extends is formed on the first overclad, so that the first grooved part and the first sensing core together form a first grating in a plane view. Furthermore, a second grooved part which extends in a direction not parallel to the direction in which the second sensing core extends is formed on the second overclad, so that the second grooved part and the second sensing core together form a second grating in a plane view. | 08-06-2009 |
20090237375 | APPARATUS USING WAVEGUIDE, OPTICAL TOUCH PANEL, AND METHOD OF FABRICATING WAVEGUIDE - An apparatus, an optical touch panel, a waveguide, and a process for producing a double layered waveguide structure are provided. The apparatus includes a waveguide having a plurality of transmission waveguide elements and a plurality of reception waveguide elements; a light source coupled to the waveguide; a light detector coupled to the waveguide; and a reflector, spaced apart from the waveguide, the reflector reflecting light emitted from the plurality of transmission waveguide elements towards the reception waveguide elements. The waveguide includes a substrate, a first cladding layer, a reception waveguide, a second cladding layer, a transmission waveguide, and a third cladding layer. The optical touch panel includes a waveguide section comprising a waveguide; a mirror; a surface emitting laser; and a detector. | 09-24-2009 |
Patent application number | Description | Published |
20090238514 | OPTICAL WAVEGUIDE HAVING GRATING AND METHOD OF FORMING THE SAME - An optical waveguide and process for forming an optical waveguide are provided. The optical waveguide includes a first cladding layer; a first waveguide core formed on the first cladding layer, the first waveguide core comprising a first long period grating formed in at least one sidewall of the first waveguide core; and a second cladding layer formed over the first waveguide core. The process for forming an optical waveguide includes forming a first waveguide core on a surface of a first cladding layer; patterning the first waveguide core with a long period grating that is perpendicular to a surface of the first cladding layer; and forming a second cladding layer on the first cladding layer so as to cover the first waveguide core. | 09-24-2009 |
20130289366 | METHOD AND APPARATUS FOR DERIVING A HEALTH INDEX FOR DETERMINING CARDIOVASCULAR HEALTH | 10-31-2013 |
20130296666 | DEVICE AND METHOD FOR REMOVAL OF AMBIENT NOISE SIGNAL FROM A PHOTOPLETHYSMOGRAPH - A device and method for removal of ambient noise signal from a photoplethysmographic measurement is provided. The method comprises obtaining a first signal waveform based on detecting light based on a first light illumination; obtaining a second signal waveform based on detecting light based on a second light illumination; tuning the first light and second light illumination such that the maximum amplitudes of the first and second signal waveforms are maximised and within a predetermined saturation range, such that ambient light interference for the first and second signal waveforms is reduced; obtaining a third signal waveform based on detecting ambient light; obtaining respective maximum and minimum values of the first and the second signal waveforms; and deriving signal values of the first and second signal waveforms with the removal of ambient noise by subtracting AC and DC average values of the third signal waveform from the first and second signals. | 11-07-2013 |
20140058272 | METHOD OF MEASURING AN ARTEFACT REMOVED PHOTOPLETHYSMOGRAPHIC (PPG) SIGNAL AND A MEASUREMENT SYSTEM - A method of measuring an artefact removed photoplethysmographic (PPG) signal and a measurement system for measuring an artefact removed photoplethysmographic (PPG) signal are provided. The method comprises obtaining a first set of PPG signals from a plurality of detectors at respective measurement sites using a first illumination; obtaining a second set of PPG signals from the plurality of detectors using a second illumination; obtaining at least two pairs of PPG signals, each pair comprising one PPG signal from the first set and one PPG signal from the second set, and for each pair, computing an artefact reference signal to obtain a candidate PPG signal; and choosing one of the candidate PPG signals as the artefact removed PPG signal. | 02-27-2014 |
Patent application number | Description | Published |
20080217048 | Wired circuit board and producing method thereof - A wired circuit board includes an insulating base layer, a conductive pattern formed on the insulating base layer and including a wire and a terminal portion, an insulating cover layer formed on the insulating base layer and having an opening portion to expose the terminal portion, and a metal thin film including a protecting portion interposed between the wire and the insulating cover layer, and an exposed portion formed continuously from the protecting portion on a peripheral end portion of the terminal portion exposed from the opening portion. | 09-11-2008 |
20090020324 | Wired circuit board - A wired circuit board comprises a metal supporting board, a metal foil formed on the metal supporting board, a first protecting layer formed on the surface of the metal foil, the first protecting layer is made of tin or a tin alloy, a first insulating layer formed on the metal supporting board to cover the first protecting layer, a conductive pattern formed on the insulating layer, and a second protecting layer formed on the surface of the conductive pattern, the second protecting layer is made of tin or a tin alloy. | 01-22-2009 |
20090025968 | Wired circuit board and producing method thereof - A wired circuit board includes an insulating layer, a conductive pattern made of copper formed on the insulating layer and a covering layer made of an alloy of copper and tin to cover the conductive pattern. An existing ratio of tin in the covering layer increases in accordance with a distance from an inner surface adjacent to the conductive pattern toward an outer surface being not adjacent to the conductive pattern. An atomic ratio of copper to tin in the outer surface of the covering layer is more than 3. | 01-29-2009 |
20090183907 | Wired circuit board - A wired circuit board has a metal supporting board, an insulating layer formed on the metal supporting board, a conductive pattern formed on the insulating layer and having a pair of wires arranged in spaced-apart relation, and a semiconductive layer formed on the insulating layer and electrically connected to the metal supporting board and the conductive pattern. The conductive pattern has a first region in which a distance between the pair of wires is small and a second region in which the distance between the pair of wires is larger than that in the first region. The semiconductive layer is provided in the second region. | 07-23-2009 |