Greenhill
David Greenhill US
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20120218034 | VOLTAGE CALIBRATION METHOD AND APPARATUS - A method and apparatus for power supply calibration to reduce voltage guardbands is disclosed. In one embodiment, an integrated circuit (IC) includes a voltage measurement unit configured to measure an operating voltage during a start-up procedure. The IC further includes a comparator configured to compare the measured operating voltage to a target voltage. The comparator is further configured to cause a change to a supply voltage (upon which the operating voltage is based) if the operating voltage is not within a target voltage range and to repeat the measurement of the operating voltage. If the operating voltage is within the target voltage range, the comparator is configured to inhibit further changes to the operating voltage. | 08-30-2012 |
David Greenhill, Portola Valley, CA US
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20100127749 | PRECISION PULSE GENERATOR - A pulse generator circuit. The pulse generator circuit includes a precharge circuit coupled to receive a clock signal alternating between a first logic level and a second logic level, a storage circuit having a storage node, wherein the precharge circuit is configured to precharge the storage node when the clock signal is at the first logic level, a logic circuit having an output, a first input node coupled to receive the clock signal, and a second input node coupled to the storage node and configured to produce a pulse at the second logic level responsive to the clock signal transitioning to the second logic level, and a discharge circuit configured to discharge the storage node at a predetermined delay time subsequent to the clock signal transitioning to the second logic level, wherein the output of the logic circuit transitions to the first logic level responsive to discharging the storage node. | 05-27-2010 |
20100271099 | FINE GRAIN TIMING - A dual rail delay chain having cross-coupled inverters that interconnect the two rails. Delay chain embodiments include cross-coupled inverters that are part of a feed forward signal path between the two rails and are of a larger size than inverters associated with the two rails. The large size feed forward cross-coupled inverters contribute to an enhanced resolution of the delay chain. | 10-28-2010 |
20100271100 | MINIMAL BUBBLE VOLTAGE REGULATOR - A digital voltage regulator including a dual rail delay chain having large size, feed forward cross-coupled inverters that interconnect the two rails. Stages of the delay chain include a dual-ended output that provides a data signal and a substantially simultaneous data complement signal to a flip-flop component associated with a sampling circuit. In use, the enhanced resolution delay chain and the reduced metastability window flop-flop increase the precision of the digital voltage regulator. | 10-28-2010 |
20110291630 | MICROPROCESSOR PERFORMANCE AND POWER OPTIMIZATION THROUGH SELF CALIBRATED INDUCTIVE VOLTAGE DROOP MONITORING AND CORRECTION - Disclosed is a digital voltage regulator system and method for mitigating voltage droop in an integrated circuit. If an unacceptable voltage droop is detected, the digital voltage regulator may take action to allow the power supply voltage to recover. A digital voltage regulator in accordance with embodiments discussed herein detects voltage droop by comparing a power supply voltage measurement with a threshold voltage. The threshold voltage may be calibrated based on power supply voltage measurements taken while the integrated circuit is operating. | 12-01-2011 |
David Andrew Greenhill, South Gloucestershire GB
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20150228374 | THERMALLY CONDUCTIVE ELECTRONIC SUBSTRATES AND METHODS RELATING THERETO - The present invention relates to polyimide pastes and methods of preparation. The polyimide pastes are used to prepare dielectric materials, and devices which include at least one layer which contain the polyimide pastes. | 08-13-2015 |
David J. Greenhill, Portola Valley, CA US
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20100264973 | ECONOMY PRECISION PULSE GENERATOR - A system includes an input device, an output device, a mechanical chassis, a printed circuit board, and a semiconductor device. The semiconductor device includes a mechanical package, and a semiconductor die. The semiconductor die includes a semiconductor layer, a plurality of metal layers, a clock distribution network that distributes a clock signal within the die, and an economy precision pulse generating circuit. The economy precision pulse generating circuit includes a pre-charge circuit, a gate-to-the-partial-jam-latch-keeper circuit, a partial-jam-latch-keeper circuit, and a pull-down-against-the-up-keeper circuit. A source clock signal is derived from the clock signal. The source clock signal is provided to a first input of a logical AND circuit, the pre-charge circuit, and the gate-to-the-partial-jam-latch-keeper circuit. A common storage node is connected to a second input of the logical AND circuit. The logical AND circuit outputs an output pulse. The output pulse is fed back to the pull-down-against-the-up-keeper circuit. | 10-21-2010 |
20100316065 | METHOD AND APPARATUS FOR MODULATING THE WIDTH OF A HIGH-SPEED LINK - The described embodiments include a system that modulates the width of a high-speed link. The system includes a transmitter circuit coupled to a high-speed link that includes N serial lanes. During operation, while using a first number of lanes to transmit frames on the high-speed link, the transmitter circuit determines a second number of lanes to be used to transmit frames on the high-speed link based on a bandwidth demand on the high-speed link. The transmitter circuit then sends an indicator of the second number of lanes to a receiver on the high-speed link. Upon receiving an error-free acknowledgment of the indicator from the receiver, starting from a predetermined frame, the transmitter circuit transmits subsequent frames on the high-speed link using the second number of lanes. | 12-16-2010 |
20120081157 | POWER-SUPPLY NOISE SUPPRESSION USING A FREQUENCY-LOCKED LOOP - An integrated circuit that includes a digitally controlled oscillator (DCO) that adjusts a clock frequency of a critical path of the integrated circuit based on the variations in a power-supply voltage of the DCO and the critical path is described. This DCO may be included in a feedback control loop that includes a frequency-locked loop (FLL), and which determines an average clock frequency of the critical path based on a reference frequency. Furthermore, the DCO may have a selectable delay characteristic that specifies a delay sensitivity of the DCO as a function of the power-supply voltage, thereby approximately matching a manufactured delay characteristic of the critical path. Additionally, for variations in the power-supply voltage having frequencies greater than a resonance frequency associated with a chip package of the integrated circuit, adjustments of the clock frequency may be proportional to the variations in the power-supply voltage and the selectable delay characteristic. | 04-05-2012 |
Katrina Greenhill, Macon, GA US
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20110207381 | Toy wheel chair - An apparatus formed or molded from hard plastics, aluminum, or Teflon type child safe materials as a child's toy is provided. The apparatus is modeled after a human sized wheel chair accompanied by a young adult human doll like figure. The apparatus is operated manually or electronically. The apparatus being a toy wheel-chair is comprised of a main frame foundation having two small rear rollers, two small front rollers, two larger roller in parallel; a chair-like sitting block placed above the main frame foundation, the sitting block comprising a cushioned backing plate, a cushioned sitting plate, two hand grips, and two cushion arm-rest; for remote control toy wheel chair, a battery housing box is placed under the cushioned sitting plate portion of the sitting block. The on/off switch is housed as an extension of one of the arm-rest. | 08-25-2011 |
Mark Greenhill, Winnetka, IL US
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20110275481 | LINEAR MOTOR SYSTEM FOR AN EXERCISE MACHINE - Exercise machines and linear motor systems for use in exercise machines are provided herein, where the linear motor provides a resistance force in response to a force generated by a user performing an exercise. The linear motor systems include a programmable logic and force generation control system, which is programmable to control the resistance provided by the linear motor. | 11-10-2011 |
20130190143 | SPOTTING DEVICE - A spotting device for use during exercise routines is provided where a lineal motor includes a forcer that travels along a magnetic shaft to provide a resistance force in response to a force generated by a weight in order to provide assistance and safely to a user performing the exercise routine. | 07-25-2013 |
20140265468 | ADJUSTABLE RIDING SEAT - An adjustable seat for a riding device includes a frame adapted to be attached to the riding device. A saddle has an underside and a fastening mechanism is attached to the underside of the saddle. A spring seat is attached to the frame. A removable compression spring is positioned between the fastening mechanism and the spring seat. The fastening mechanism is adjustable so that a compression of the spring between the fastening mechanism and the spring seat may be adjusted. | 09-18-2014 |
Michael Greenhill, Highland Park, IL US
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20090217493 | HOOP RETAINING RING - Retaining rings can be used either externally on a shaft or internally within a bore are provided to form assemblies that can retain a component adjacent to the shaft or bore. The retaining rings can have a rectangular cross-section, and an axial thickness greater than the radial width. Components retained by such retaining rings can have a chamfered or radiused edge, and can overhang the retaining ring. The thrust load applied to the retaining rings can have an axial portion and a radial portion. | 09-03-2009 |
20110275481 | LINEAR MOTOR SYSTEM FOR AN EXERCISE MACHINE - Exercise machines and linear motor systems for use in exercise machines are provided herein, where the linear motor provides a resistance force in response to a force generated by a user performing an exercise. The linear motor systems include a programmable logic and force generation control system, which is programmable to control the resistance provided by the linear motor. | 11-10-2011 |
20130190143 | SPOTTING DEVICE - A spotting device for use during exercise routines is provided where a lineal motor includes a forcer that travels along a magnetic shaft to provide a resistance force in response to a force generated by a weight in order to provide assistance and safely to a user performing the exercise routine. | 07-25-2013 |
Patrice Montrell Greenhill, Macon, GA US
Patent application number | Description | Published |
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20110207381 | Toy wheel chair - An apparatus formed or molded from hard plastics, aluminum, or Teflon type child safe materials as a child's toy is provided. The apparatus is modeled after a human sized wheel chair accompanied by a young adult human doll like figure. The apparatus is operated manually or electronically. The apparatus being a toy wheel-chair is comprised of a main frame foundation having two small rear rollers, two small front rollers, two larger roller in parallel; a chair-like sitting block placed above the main frame foundation, the sitting block comprising a cushioned backing plate, a cushioned sitting plate, two hand grips, and two cushion arm-rest; for remote control toy wheel chair, a battery housing box is placed under the cushioned sitting plate portion of the sitting block. The on/off switch is housed as an extension of one of the arm-rest. | 08-25-2011 |
Richard Martin Greenhill, London GB
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20110040408 | ROBOTIC HAND - A robotic hand assembly comprising: a hand section comprising: at least one digit provided with at least one actuatable joint; and a control section comprising: at least one actuation device, the at least one actuation device comprising: a sensing module configured to sense a force applied to a tendon coupled at a first end to the at least one actuatable joint; and an actuation module configured to actuate the at least one actuatable joint. | 02-17-2011 |
20120017718 | ROBOTIC MUSCULAR-SKELETAL JOINTED STRUCTURES - A robotic musculo-skeletal jointed structure comprising: (a) first and second joint parts coupled together for relative angular movement about a hinge axis there between; (b) an air muscle; (c) spaced first and second attachment sites, being sites respectively located at said joint first and second parts, and about which the tubular braiding, at least, of said air muscle extends to form an endless loop; (d) first and second attachment means respectively located at said first and second air muscle spaced attachment sites, said first attachment means being such as to secure said tubular braiding against lengthwise movement thereof with respect to said joint first part at said first attachment site, and said second attachment means being such as to secure said tubular braiding against lengthwise movement thereof with respect to said joint second part at said second attachment site, the endless tubular braiding being thereby partitioned into first and second tubular braiding segments contiguous with one another at both said attachment sites and housing segregated first and second resiliently expansible tubular parts, respectively; and, (e) air duct means, being means whereby air may be admitted and evacuated, as may be required, independently to and from said resiliently expansible air muscle tubular parts; and in which: (f) said joint parts, the location there between of said axis, the locations of said first and second attachment sites and of said first and second tubular braiding attachment means thereat, and the positional inter-relationship between all of these, are such that change in tubular braiding length arising from variation in girth of the resiliently expansible tubular parts under change in air pressure in said air muscle tubular parts, or either of them, gives rise to a corresponding angular relative displacement between said joint first and second parts about said axis. | 01-26-2012 |
20130313844 | ROBOTIC HAND - Aspects of the subject technology relate to a robotic finger digit including a distal finger joint coupled between a distal finger part and a middle finger part, a middle finger joint coupled between the middle finger part and a proximal finger part and an extend tendon coupled at a first end to the distal finger joint, and coupled at a second end to an actuation device. In certain aspects, the robotic finger can further include a flex tendon coupled at a first end to the distal finger joint, and coupled at a second end to the actuation device, wherein the actuation device is configured to move the extend tendon and the flex tendon substantially the same distance in order to flex and/or extend the robotic finger digit. | 11-28-2013 |
Stewart Ellis Smith Greenhill, West Australia AU
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20090073265 | VIRTUAL OBSERVER - This invention concerns wide-area video surveillance systems. In a first aspect the invention is a surveillance network, in another aspect the invention is a virtual observer, and in a further aspect the invention is a method for operating a virtual observer. Each segments or frame of video, from each camera of the network is associated with the following trajectory parameters; a time and a spatial position, and possibly a radius, orientation, resolution and field of view, and stored for later recall. | 03-19-2009 |
Stewart Ellis Smith Greenhill, Hilton AU
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20080297513 | Method of Analyzing Data - A computer assisted method of analysis suitable for process control, comprises the steps of: receiving first data streams representing values from a process; receiving second data streams representing states of the process; recording metadata about the data streams; calculating relationships between pairs of the data streams; and recording relationship data resulting from the calculating step together with an association between at least one relationship datum and its corresponding meta-data. | 12-04-2008 |
Stewart Ellis Smith Greenhill, Western Australia AU
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20090303324 | TESTING SURVEILLANCE CAMERA INSTALLATIONS - This invention concerns the testing of surveillance camera installations. In particular, the invention involves an automatic testing system for surveillance camera installations, and a method for testing. The invention involves receiving test or “probe” images from at least one camera in the installations. Storing a reference image from at least the one camera. Comparison of the probe image with a reference image from the same camera, and production of an output when maintenance is required for that camera. The comparison involves the steps of: Extracting salient features from both the probe and reference images. Calculating matching factors between the salient features extracted from both images. And, computing a decision about whether maintenance is required from the matching factors. | 12-10-2009 |
Zachary R. Greenhill, Rye, NY US
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20140023805 | GRADIENT NANOPARTICLE-CARBON ALLOTROPE-POLYMER COMPOSITE MATERIAL - A shock wave attenuating material ( | 01-23-2014 |
20140113086 | GRADIENT NANOPARTICLE-CARBON ALLOTROPE POLYMER COMPOSITE - Systems and methods are provided for protective devices. A protective equipment device may include a high mass member; and a nanoparticle shock wave attenuating material layer disposed on the high mass member. The nanoparticle shock wave attenuating material layer may include a gradient nanoparticle layer including a plurality of nanoparticles of different diameters that are arranged in a gradient array; and a carbon allotrope layer disposed in proximity to the gradient nanoparticle layer, the carbon allotrope layer comprising a plurality of carbon allotrope members suspended in a matrix. | 04-24-2014 |
Zachary R. Greenhill, New York, NY US
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20110212320 | Composite Material - Disclosed herein are engineered composite materials suitable for applications that can benefit from a composite material capable of interacting with or responding to, in a controlled or pre-determined manner, changes in its surrounding environment. The composite material is generally includes a gradient layer structure of a sequence of at, e.g., three or more gradient-contributing layers of microscale particles, wherein a mean particle size of particles of neighboring gradient-contributing layers in the cross section of the gradient layer structure varies from layer to layer, thereby forming a particle size gradient, and in contact with the gradient layer structure, a densely packed particle structure including densely packed microscale particles, wherein a mean particle size of the densely packed microscale particles does not form a particle size gradient in the cross section of the densely packed particle structure. | 09-01-2011 |
20120088036 | Composite Material - Disclosed herein are engineered composite materials suitable for applications that can benefit from a composite material capable of interacting with or responding to, in a controlled or predetermined manner, changes in its surrounding environment. The composite material is generally includes a gradient layer structure of a sequence of at, e.g., three or more gradient-contributing layers of microscale particles, wherein a mean particle size of particles of neighboring gradient-contributing layers in the cross section of the gradient layer structure varies from layer to layer, thereby forming a particle size gradient, and in contact with the gradient layer structure, a densely packed particle structure including densely packed microscale particles, wherein a mean particle size of the densely packed microscale particles does not form a particle size gradient in the cross section of the densely packed particle structure. | 04-12-2012 |
20130273273 | GRADIENT NANOPARTICLE-CARBON ALLOTROPE-POLYMER COMPOSITE MATERIAL - A shock wave attenuating material ( | 10-17-2013 |
20140099472 | COMPOSITE MATERIAL - Systems and methods for composite materials, including coatings and stand-alone structures are provided. An apparatus may include a first layer structure that includes a first plurality of densely packed sub-macroscale particles having a first mean diameter; and at least a second layer structure that includes a second plurality of densely packed sub-macroscale particles having a second mean diameter that is different from the first mean diameter. The first layer structure and the second layer structure may be applied to a substrate, where the substrate may be an article of sports equipment, medical device or other article. | 04-10-2014 |