A digital sphygmomanometer is disclosed in which a conventional arm cuff and a compact high sensitivity pneumatic sensor measuring system utilizing mechanical/optical/electronic techniques rapidly and accurately converts one's own or a patient's blood pressure to encoded digital signals which provide dual latched three digit displays of systolic and diastolic pressures with countdown in 1 mm Hg increments on the respective displays of cuff pressure as it is decreased to systolic pressure and as ...

The invention relates to a scale system which employs a microcomputer forming an integral part of the analog to digital conversion means in which the microcomputer controls the sequence of operations for performing the conversion, accumulates and stores digital data derived during the conversion of the analog signal and combines and processes that data to provide the digital output data resulting from the conversion, all in addition to performing other scale functions. The invention relates to a...

The time-to-go of the fuze of an artillery shell is digitally set after the round has been fired but before it leaves the muzzle of the gun. The communications link for setting the fuze includes a transmitting coil mounted on the gun muzzle and a receiving coil mounted on each shell round. The transmitting coil is energized with a plurality of signals on discrete frequencies. The output from the receiving coil is detected to derive one binary digit representing each discrete frequency. All the b...

A digital tampon of unitary construction made of absorbent material capable of being compressed to self-sustaining form. A portion of the material is compressed to a rod-like shape to provide a rigid central support for the remaining relatively uncompressed portion which originates at the top of the rigid central support and is draped downwardly to surround and extend past the lower terminus of the support to form a finger receiving pocket at the tampon base. During insertion the rigid central r...

A photoelectrically readable digital micrometer for precisely measuring a micro distance includes an outer ring having a micro internal thread, a spindle shaft having an external thread screwed into the internal thread, a disc-shaped scale plate having a scale provided around the periphery of the plate surface, the scale plate being secured to the spindle shaft perpendicular to the plate surface, a slidable ring slidably mounted on the outer ring and being slidable in the axial direction togethe...

A digital filter comprising an up-down counter conditioned by a signal indicative of whether an input periodic oscillation signal is of a frequency representing a binary 1 or a binary 0, to count in one direction to a threshold count for an input 1, and to count in the other direction to a threshold count for an input 0 is disclosed. Additional, a crystal controlled oscillator provides the pulses by which the up-down counter counts in a direction determined by the conditioning signal. The condit...

The output buffer uses the output feedback control to control the transmission speed of the input signal. With the output feedback control, the NMOS and PMOS has the different switching speed. As the output node switches from 0 to 1 state, the NMOS turns off before the turning on of PMOS. As the output node switches from 1 state to 0 state, the PMOS turns off before the turning on of NMOS. There are the multiple functions: nonoverlapping switch, the soft-turn switch and the speed-up fast switch....

A hydraulic actuator is formed by an assembly including a first element, a cylinder, a body section and a chamber. The first element is provided with a first set of a plurality of different sized piston cavities and piston elements which cooperate with a second set of piston elements and piston cavities respectively formed on a second element. The second element forms a piston in cylinder. The body sides incorporates, preferably in symmetrical relationship around the axis, of the assembly a plur...

A digital decimation filter for receiving a stream of input digital samples at an input sample rate, and for delivering a corresponding stream of output digital samples at a different output sample rate stores a plurality of input digital samples, derives samples of the output stream from the stored input digital samples, and makes an output sample available for inclusion in the output stream at all times, whereby the output sample may be delivered with a selectable phase. In other aspects, an a...

A digital teleconverter includes a component signal generation circuit, an encoder for obtaining a composite signal from the component signal, an image processing unit and a selector for selecting an image processing mode. The component signal generation circuit generates component signals comprising a luminance signal and color difference signals in response to an object image transmitted from an image pickup element. The encoder converts the component signals transmitted from the component sig...