Abstract: A laparoscopic imaging apparatus is described herein. The laparoscopic imaging apparatus includes a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, and the distal end is configured for attachment of a laparoscopic tool and for insertion into patient anatomy. The laparoscopic tool pivots on a first gimbal apparatus that is actuable from the actuator at the proximal end of the shaft, to rotate the laparoscopic tool about a longitudinal axis of the shaft and, further, to rotate the laparoscopic tool about at least a second axis that is orthogonal to the longitudinal axis.

Abstract: A laparoscopic imaging apparatus is described herein. The laparoscopic imaging apparatus includes a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, and the distal end is configured for attachment of a laparoscopic tool and for insertion into patient anatomy. The laparoscopic tool pivots on a first gimbal apparatus that is actuable from the actuator at the proximal end of the shaft, to rotate the laparoscopic tool about a longitudinal axis of the shaft and, further, to rotate the laparoscopic tool about at least a second axis that is orthogonal to the longitudinal axis.

Abstract: A laparoscopic imaging apparatus is described herein. The laparoscopic imaging apparatus includes a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, and the distal end is configured for attachment of a laparoscopic tool and for insertion into patient anatomy. The laparoscopic tool pivots on a first gimbal apparatus that is actuable from the actuator at the proximal end of the shaft, to rotate the laparoscopic tool about a longitudinal axis of the shaft and, further, to rotate the laparoscopic tool about at least a second axis that is orthogonal to the longitudinal axis.

Abstract: A laparoscopic imaging apparatus has a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, wherein a longitudinal axis extends through the shaft, between the proximal and distal ends, wherein the distal end is configured for insertion into patient anatomy and for attachment of one or more laparoscopic tools, wherein at least a first laparoscopic tool at the distal end pivots on a first gimbal apparatus that is actuable, from the actuator at the proximal end of the shaft, to rotate the at least the first laparoscopic tool about the longitudinal axis of the shaft and, further, to rotate the at least the first laparoscopic tool about at least a second axis, orthogonal to the longitudinal axis.

Abstract: A lighted swivel laparoscopic imaging apparatus has a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, wherein a longitudinal axis extends through the shaft, between the proximal and distal ends, wherein the distal end is configured for insertion into patient anatomy and for attachment of one or more laparoscopic tools, wherein at least a first laparoscopic tool at the distal end pivots on a first gimbal apparatus that is actable, from the actuator at the proximal end of the shaft, to rotate the at least the first laparoscopic tool about the longitudinal axis of the shaft and, further, to rotate the at least the first laparoscopic tool about at least a second axis, orthogonal to the longitudinal axis. The images from the laparoscopic instrument may be viewed in virtual format with a virtual overlay of where the instruments exist and are moving inside the body from an AR/XR headset or other 3D viewing device.

Abstract: A lighted swivel laparoscopic imaging apparatus has a shaft having a proximal end opposite a distal end, wherein the proximal end is configured for attachment to an actuator, wherein a longitudinal axis extends through the shaft, between the proximal and distal ends, wherein the distal end is configured for insertion into patient anatomy and for attachment of one or more laparoscopic tools, wherein at least a first laparoscopic tool at the distal end pivots on a first gimbal apparatus that is actable, from the actuator at the proximal end of the shaft, to rotate the at least the first laparoscopic tool about the longitudinal axis of the shaft and, further, to rotate the at least the first laparoscopic tool about at least a second axis, orthogonal to the longitudinal axis. The images from the laparoscopic instrument may be viewed in virtual format with a virtual overlay of where the instruments exist and are moving inside the body from an AR/XR headset or other 3D viewing device.

Abstract: An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space may include a heat pump system, an energy recovery device and a control unit. The heat pump system may include a first coil located at a supply air side of the ventilation unit, a second coil located at an exhaust air side of the ventilation unit, and a compressor. The energy recovery device may be configured to transfer heat between a return air stream and a supply air stream and the control unit may be configured to control operation of the heat pump system and the energy recovery device.

Abstract: An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space may include a heat pump system, an energy recovery device and a control unit. The heat pump system may include a first coil located at a supply air side of the ventilation unit, a second coil located at an exhaust air side of the ventilation unit, and a compressor. The energy recovery device may be configured to transfer heat between a return air stream and a supply air stream and the control unit may be configured to control operation of the heat pump system and the energy recovery device.

Abstract: An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space may include a heat pump system, an energy recovery device and a control unit. The heat pump system may include a first coil located at a supply air side of the ventilation unit, a second coil located at an exhaust air side of the ventilation unit, and a compressor. The energy recovery device may be configured to transfer heat between a return air stream and a supply air stream and the control unit may be configured to control operation of the heat pump system and the energy recovery device.

Abstract: Method and apparatus for controlling a brushless dc motor, such as the type used in a data storage device to rotate data storage media. A sequence of drive pulses is applied to rotate the motor. The sequence is switched from first to second motor commutation states at a time determined in relation to changes in elapsed time between successive pulses in the sequence. Each drive pulse has a duration established in relation to an inductance of the motor, and is separated from adjacent pulses by an intermediate delay of predetermined value. A peak elapsed time interval between successive pulses is identified, and the next commutation state is switched in at a selected time after the peak time interval. The sequence preferably accelerates the motor from rest to an intermediate velocity, after which back electromotive force (bemf) commutation is used to accelerate the motor to a final operational velocity.

Abstract: Method and apparatus for accelerating a multi-phase motor having a rotatable rotor are disclosed. The method incorporates use of a motor control circuit to predict a subsequent loss of frequency lock between the motor control circuit and a motor while the motor control circuit and the motor remain frequency locked, and based on the prediction, steps to overt a loss of frequency lock during acceleration. The apparatus includes at least a motor control circuit detecting frequency lock with a motor when a motor signal falls within a timing window, and while frequency locked, predicting a subsequent loss of frequency lock based on a relative position of the motor signal within the timing window.