Motorola Corporation

Other

Texas Instruments Corporation

David M Gonzalez

Alexander Wayne Hietala

Behrooz L Abdi

Christopher J Kemp

Roger J Cook

Stephen R Tomassetti

Alex Wayne Hietala

James Roderick Snider

Mark A Streeter

A golf swing training device comprising a track with a C-shaped cross-section, a roller bearing assembly located within the C-shaped cross-section of the track such that the roller bearing assembly is capable of moving freely along the length of the track but is incapable of disengaging from the track, and a clamp pivotally mounted to the roller bearing assembly, where the clamp is capable of receiving a club shaft. The track may be mounted on height-adjustable legs, allowing the angle of the track to be adjusted. The device may allow a user to practice the user's golf swing without the ability to alter the swing from the path of the track, allowing the user to develop muscle memory to produce a consistent swing.

Golf swing training device

A wheeled cart capable of rolling along a first environmental surface, which may carry a plurality of storage receptacles in gimballing fashion thereon, and which enables the wheeled cart to be slid onto an elevated second environmental surface. The wheeled cart comprises a base supporting wheels and two upright support posts. A subframe supporting the storage receptacles is pivotally and slidably mounted to the upright support posts. The subframe may be inclined from its usual vertical orientation to a horizontal orientation and slid onto the second environmental surface. The base and support posts may be inclined from their usual vertical orientation to reassume longitudinal alignment with the subframe. Contents of the storage receptacles are thus moved en masse onto the second environmental surface without requiring removal from the wheeled cart, while constantly assuming their orientation relative to a vertical direction because of gimballing action of the storage receptacles.

Wheeled cart slidable onto horizontal surface

Method and apparatus for attenuating unwanted aspects of lighting from a luminaire which is disposed to illuminate an object or objects being photographed. A light attenuating mask is disposed between the luminaire and the object or objects. The light attenuating mask may diffuse, obstruct, or otherwise modify projected light such that light intensity is diminished, unwanted reflections of the luminaire are suppressed, or other aspects of the light are altered. The mask may attach to the luminaire or may be free standing and separate therefrom.

Control of emitted light from luminaire

A PLL (,) includes a phase detector (,) and a charge pump (,or,). The phase detector (,) includes a first D-type flip flop (,), a second D-type flip flop (,) and an AND gate forming a reset circuit (,). The charge pump (,or,) includes an up current source (,) and a down current source (,). The up current source (,) provides a constant current. The down current source (,) varies responsive to an output signal (,) generated by the second D-type flip flop (,). The constant current provided by the up current source (,) is made to be less than one half the current provided by the down current source (,) to bias the charge pump (,or,) in a negative direction to minimize false locks between the phase of a divided reference frequency signal (,) and the phase of a divided voltage controlled oscillator frequency signal (,). Alternatively, the up current source (,) may be controlled in an analogous manner with the down current source (,) being held constant to achieve a similar effect and advantage.

Phase detector with frequency steering

A mid supply reference generator (100, 200, 300) has a first resistance element (106, 206) coupled to a first supply. A second resistance element (108, 208) is coupled to a second supply. A third resistance element (110, 210) is coupled to the second supply A first transistor element (116, 216) is coupled to the first resistance element and the second resistance element, the first transistor element coupled between the first and second resistance element such that the first and second resistance elements provide a reference voltage drop from the same current level. A second transistor element is (120, 220) coupled between the first supply and the mid supply output, the second transistor element to drive the output providing a desired mid supply potential. A third transistor element (118,218) is coupled to the mid supply output and to the third resistance element, the third transistor element and the first transistor element being connected such that they generate proportional currents.

Mid supply reference generator

A clock driver circuit (100) comprises an input (102) for a reference clock signal. A filter (106) is connected to the input to receive the reference signal and output a filtered signal. A complementary FET driver circuit (108) having a cross-over threshold is coupled to the filter to receive the filtered signal and output a conditioned clock signal.

Clock driver

An operational amplifier includes a differential amplifier including a first transistor (120) and a second transistor (122), a gain stage (125), a first folded cascode stage (104) and a second folded cascode stage 106, and a first telescopic stage (108) and a second telescopic stage (110). The folded cascode stages respond to current in the differential amplifier to control the output signal, and the telescopic stages respond to a differential voltage produced by the gain stage to control the output signal.

Low-power operational amplifier having fast setting time and high

A system (100 or 200) includes a first AGC stage (102) having a programming input and a gain input. A second AGC stage (104 or 210 and 234) is coupled in a common path with the first AGC stage, the second AGC stage having a programming input and a gain input. The first and second AGC stages are programmed by respective programming signals to produce independent gain characteristics responsive to a common gain signal at their respective gain inputs.

Gain distribution circuit

A communication device (100) employs a local oscillator (104) having an improved charge pump circuit (122). The charge pump circuit (122) has current mirrors (204, 208) in which a first transistor (224, 270) is biased to provide a substantially constant current. A resistor (226, 272) selectively conducts a reference current to bias a mirror transistor (228, 274). The current mirror (204, 208) provides improved dynamic performance thereby reducing global phase error of the communication device (100).

Switching current mirror for a phase locked loop frequency synthesizer

A low side line driver (10) includes a slew rate limiter (12) providing current to a pre-charge reference circuit (16). The pre-charge reference circuit (16) generates a constant voltage at the input of a pre-drive circuit (18). Upon a transition to the active state, the pre-charge reference circuit (16) is disabled and current from the slew rate limiter (12) flows to pre-drive circuit (18) which becomes enabled without undue propagation delay or high instantaneous slew rate due to the pre-charge voltage generated by the pre-charge reference circuit (16) before turn on. The pre-drive circuit (18) provides base current to an output driver (22) from a negative voltage created in a charge pump (28). At turn off, an active turn off circuit (26) produces a short output pulse causing rapid discharge of base capacitance of the output driver (22) in order to minimize turn off propagation delay.

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Elgin, IL, United States of America

David M Gonzalez