Abstract: A coupler for a fiber optic light waveguide has phase space matching optics to increase coupling efficiency. The acceptance phase space of the fiber optic waveguide has two components for light in two orthogonal planes. One of the phase space plots has a straight spine and the other has a bent spine. The phase space matching optics include a graded index lens optically coupled to the phase of a light emitting diode, in the case of a write coupler, which alters the emitted light phase space at a reference plane of the emitted light to match, at the reference plane, the acceptance phase space component having the straight spine. Another lens takes the output light from the graded index lens and alters the phase space further to match the phase space component having the bent spine.

Abstract: A non-invasive technique for approximating the mean pressure value and blood pressure constant associated with the actual blood pressure in a particular artery of a given subject is disclosed herein. In accordance with this technique, a number of cuff pulses at varying cuff pressures are generated from the actual blood pressure of the subject and the mean value of the cuff pulse having a maximum peak to peak amplitude value is determined. This mean value is utilized as an approximation of the mean value of the patient's actual blood pressure and is also used in combination with the patient's diastolic and systolic blood pressures to provide the approximation of the patient's blood pressure constant.

Abstract: A technique is disclosed herein for obtaining the diastolic and systolic blood pressures of a particular patient by generating cuff pulses of the patient and using these cuff pulses as the only information relating to the blood pressure of the patient in order to determine the diastolic and systolic pressures.

Abstract: Techniques for determining different parameters associated with an individual's blood pressure in a non-invasive manner are disclosed herein. These techniques include (1) generating a blood pressure waveform corresponding to the individual's actual waveform, whereby the mean pressure of the individual can be readily calculated, (2) generating a transformation curve unique to the patient from his diastolic and systolic pressures and his cuff pulses (3) successively monitoring certain parameters of the patient's blood pressure including his systolic and diastolic pressures over closely spaced intervals of time without having to subject the patient to cuff pressures much greater than his diastolic pressure, other than initially or not at all utilizing what is referred to as a stat mode, and (4) measuring a patient's diastolic and systolic blood pressures at any given instance without ever having to subject the patient to cuff pressures much greater than his diastolic pressure.

Abstract: Techniques for determining different parameters associated with an individual's blood pressure in a non-invasive manner are disclosed herein. These techniques include (1) generating a blood pressure waveform corresponding to the individual's actual waveform, whereby the mean pressure of the individual can be readily calculated, (2) generating a transformation curve unique to the patient from his diastolic and systolic pressures and his cuff pulses, (3) successively monitoring certain parameters of the patient's blood pressure including his systolic and diastolic pressures over closely spaced intervals of time without having to subject the patient to cuff pressures much greater than his diastolic pressure, other than initially or not at all utilizing what is referred to as a stat mode, and (4) measuring a patient's diastolic and systolic blood pressures at any given instance without ever having to subject the patient to cuff pressures much greater than his diastolic pressure.

Abstract: Techniques for determining different parameters associated with an individual's blood pressure in a non-invasive manner are disclosed herein. These techniques include (1) generating a blood pressure waveform corresponding to the individual's actual waveform, whereby the mean pressure of the individual can be readily calculated, (2) generating a transformation curve unique to the patient from his diastolic and systolic pressures and his cuff pulses, (3) successively monitoring certain parameters of the patient's blood pressure including his systolic and diastolic pressures over closely spaced intervals of time without having to subject the patient to cuff pressures much greater than his diastolic pressure, other than initially or not at all utilizing what is referred to as a stat mode, and (4) measuring a patient's diastolic and systolic blood pressures at any given instance without ever having to subject the patient to cuff pressures much greater than his diastolic pressure.

Abstract: Techniques for determining different parameters associated with an individual's blood pressure in a non-invasive manner are disclosed herein. These techniques include generating a blood pressure waveform corresponding to the individual's actual waveform whereby the mean blood pressure of the individual can be readily calculated. This is accomplished by either using a specifically selected cuff pressure or by ramping the cuff pressure as would be done in taking blood pressure.

Abstract: Devices for and methods of pressurizing or depressurizing a particular pressurizable container or housing in a substantially linear, fixed manner independent of the pressurized volume of the container are disclosed herein. These devices are especially suitable in an arrangement for taking blood pressure in which a cuff wrapped around a body part of a patient is pressurized or alternatively depressurized to detect the patient's systolic and diastolic pressures. The device acts on the cuff so that the latter is pressurized or depressurized in a substantially linear, fixed manner independent of the pressurized volume of the cuff, that is, independent of the size of the cuff.

Abstract: A specific technique for determining an individual's systolic blood pressure is disclosed herein. This technique utilizes the individual's diastolic blood pressure, the patient's arterial curve or amplitude curve, and different assumed systolic pressures for making a comparison between certain assumed curves and a reference curve in order to establish which of the assumed systolic pressures accurately reflects the individual's actual systolic pressure.

Abstract: A versatile, calibrated cable connector crimping tool capable of crimping a plurality of cable connector sizes and a method of forming a calibrated crimp or a plurality of calibrated crimps in a cable splice connector positioned around a cable splice along a cable using said crimping tool are disclosed. The crimping tool comprises a first die member having a plurality of dies of select sizes, a second die member having a single die of select size, and a hinge joint connecting said die members and allowing them to be swung into engagement. One die member has a die or dies which are spatially fixed to define a fixed die member. The other die member has a moving means along which the die or dies may be moved into a position allowing engagement of the die members to define a movable die member.

Abstract: Improved method and apparatus for indicating blood pressure and the like in a varied pressure cuff system wherein blood vessel pulsation signals are supplied to signal processing means for determining the blood pressure. The blood pressure pulsations are monitored to detect artifacts and the signal processing means inhibited if an artifact is detected. Upon detection of an artifact the pressure applied by the cuff is automatically adjusted to repeat the pressure at which the artifact is detected, thereby to seek artifact-free values. The pressure-repetition may be a discrete pressure or a limited pressure range. Further, a maximum number of limited-pressure repetitions may be established, after which the entire pressure range must be repeated.

Abstract: A microfiche reader assembly especially suitable for use in a desk drawer of typical size is disclosed herein. This assembly includes a housing, a projection screen, a microfiche support arrangement for supporting a microfiche for movement within a given rectangular operating area and an optical arrangement cooperating with the supported microfiche for projecting an enlarged image of a section of the microfiche on to the screen when the microfiche is in its operating area. While this assembly requires more room than the standard desk drawer allots during use, it is made sufficiently collapsible to fit entirely within the confines of the drawer when not in use so as to allow the drawer to be closed. However, at the same time, the assembly is expandable for use within the drawer when the latter is opened, whereby the assembly does not have to be removed.

Abstract: A microfiche reader is disclosed herein and includes an assembly for supporting a microfiche in a given area, a projection screen and an optical arrangement for providing an image of a segment of the microfiche on the screen. This arrangement utilizes a dual projection lens assembly and a dual condenser lens assembly which cooperate with one another so that the magnification of the projected image can be easily varied between two levels. As disclosed, the dual projection lens assembly itself includes two distinct projection lenses which are contained in collapsible housings. Moreover, each of these latter lenses is adjustably focused by rotational movement of its associated housing and remains in the focusing position selected unless its housing is again rotated.

Abstract: A microfiche reader assembly for optically projecting a microfiche image on the backside of a screen for viewing from its front side is disclosed herein. This assembly includes a housing having an inner chamber, a projection screen supported by the housing and a support for the microfiche itself. A beam of light is passed through the microfiche along an incoming path and into the chamber where a plurality of light reflecting surfaces are utilized to redirect the same beam onto the backside of the screen along a plurality of different paths including a final path incident with the screen and at least one intermediate path between the incoming and incident paths. These paths are specifically selected to improve image contrast and corner image brightness at the screen and to provide a relatively long overall path length at a small field angle while minimizing the size of assembly housing necessary to contain the previously recited light reflecting surfaces.

Abstract: A microfiche reader is disclosed herein and includes an optical arrangement for providing an image of a supported microfiche on a projection screen. This optical arrangement utilizes a beam of light which is directed from a light source along a path through the microfiche and towards the back side of the screen. A condenser lens is located on this beam path between the microfiche and light source and includes a focal point also located on the path but on the other side of the microfiche. A projection lens assembly is located between the microfiche and the focal point of the condenser lens, again on the beam path, such that there is a predetermined spacing between the projection lens assembly and focal point. This spacing is selected to increase and preferrably maximize illumination efficiency of the overall optical arrangement.

Abstract: A microfiche reader is disclosed herein and includes a projection screen and an optical arrnagement adapted to cooperate with a microfiche for providing an enlarged image of the latter on the screen. The reader also includes an assembly for supporting the microfiche for planar movement within the confines of a given area. This support assembly utilizes a carriage for containing the microfiche and, in one embodiment, the carriage is itself supported by a particular diagonal array of bearings whereas, in another embodiment, it is supported by an array of living hinges.

Abstract: A combination viewer and projector having a housing with a rear-lighted viewing screen mounted therein. The housing is adapted to receive a magazine having a length of film therein which can be advanced past an aperture in the magazine. A source of light is provided in the housing and is then directed into the magazine to form an image from the film in the aperture. Means is provided in the housing for receiving the image and for directing it onto a rear-lighted screen or alternatively through a projection opening in the housing.