A motion monitor particularly useful for monitoring infant respiration, and comprising an oscillator driving an ultra-sonic wave generator, a receiver for ultra-sonic echoes, a phase detector for detecting phase shift between the outputs of th detector and oscillator and means for recovering the respiration envelope from the output of the phase detector. In a preferred embodiment the system includes a phaselocked loop using selected very low frequencies in the output of the phase detector to con...

Disclosed is a motion compensator to permit relative movement between an underwater well installation and a vessel on the water surface. The motion compensator includes telescoping elements, seals between the telescoping elements and ports to permit lubrication of the seals. A method of using the motion compensator is also disclosed. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to th...

Disclosed is a motion compensator to permit relative movement between an underwater well installation and a vessel on the water surface. The motion compensator includes telescoping elements, seals between the telescoping elements and ports to permit lubrication of the seals. A method of using the motion compensator is also disclosed. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to th...

A motion sensing transducer is disclosed that includes a case having an inner surface, a first cap that closes the case at a first end and a second cap that closes the case at a second end. The case inner surface, first cap and second cap define a space within the case. The apparatus further includes at least one inner plate member separating the space into at a first compartment and a second compartment within the case, a coil-magnet assembly that produces a signal when subjected to motion, the...

A rotary motion transformer particularly adapted to provide continuous rotary motion to a driven member in response to an intermittently rotated driving member is provided. The driven member and the driving member are oppositely poled magnetic permeable members disposed proximate to each other to provide a flux field therebetween. The driven rotary member is disposed in a viscous damping reservoir, the viscous damping reservoir effecting smooth and continuous rotation of the driven member.

Provided is a motion converter which comprises a housing, a cam plate reciprocal to the housing, a lower link and an upper link. The cam plate has a groove which extends diagonally across the width thereof. The lower link is pivotably mounted to the housing and has a cam pin and a slot formed at a free end thereof. The cam pin is engageable to the groove of the cam plate. The upper link is also pivotably mounted to the housing in offset relationship to the lower link. A free end of the upper lin...

A work station includes a work table and chair defining a work station geometry. A plurality of adjustable elements are utilized within the work station to facilitate the variation of the work station geometry. A controller is coupled to the adjustable elements of the work station to apply gradual long term motion profile signals to the adjustable elements of the work station. The work station geometry is varied in response t the imposition of the motion profile signals upon the adjustable eleme...

The motion detector includes at least one element moving at least temporarily, a circuit assembly for sensing the motional condition of the element comprising at least one sensor located adjoining the element and including a timed pulse activated oscillating circuit which is differingly damped depending on the motional condition of the element, a signal processing circuit for forming the signals of the oscillating circuit suitable for analysis in an analyzer receiving and analyzing the signals o...

The invention relates to a motion detector or proximity switch for detecting moving objects, wherein a high frequency electromagnetic radiation is generated by a free running oscillator and transmitted via a transmitter antenna. The transmitter antenna detects the Doppler modified radiation reflected by the moving object as a function of its phase position or amplitude variation. The radiation is compared with the transmitted radiation parameters in an evaluation device with a view to producing ...

A method of comparing a current block in a current frame to a plurality of background blocks in a preceding frame. Each block includes a matrix of data values arranged in a given number of columns. The method uses a processor which has a plurality of computational registers, each register capable of receiving a number of the data values at least equal to the given number. The data values are loaded from a memory beginning at an address in the memory evenly divisible by the given number. The meth...