Abstract:
In one aspect of the invention, the sample surface is wetted with an aqueous solution of a fluorescent dye followed by rinses with water to remove an excessive amount of the dye so that the background fluorescence emission can be minimized to increase the efficiency of fingerprint detection. In another aspect, the fluorescent dye or a reagent to produce fluorescent substance is deposited on the sample surface by attaching a gelatinous film impregnated with a solution thereof followed by peeling. In a further different aspect, a powdery fluorescent dye is deposited on to the sample surface followed by spraying of water to wash away an excessive amount of the powdery dye so that the background fluorescence can be minimized. The invention also provides an apparatus for the fingerprint detection by the laser beam excitation of fluorescence, which is compact and portable as being composed of an ingenious combination of several units into an integral system.
Abstract:
Four fingers of a hand of an individual person, i.e. the indexfinger,the middle finger, the medical finger and the little finger are placed on a transparent measuring table (11) in juxtaposition. A guide member (12) is also placed on the table to restrict the position of the hand (1) and light is irradiated onto the table. The intensity of the light passed through the transparent measuring table is scanned by a television camera (15) at every light receiving point to convert it in electrical signals. Thus obtained electric signals are processed to calculate the differential data of the finger lengths thereby detecting an individual person.
Abstract:
Apparatus is disclosed for measuring an athlete's auditory reaction time, and for training an athlete to reduce his auditory reaction time in response to an auditory stimulus used to initiate an athletic event. The apparatus automatically provides a sequence of variable time delays followed by auditory stimuli which simulates the sequence and auditory quality of the preparatory commands used to initiate an athletic event. The apparatus further provides means for measuring and indicating the athlete's auditory reaction time in response to the auditory stimulus which represents the "Go" signal of the athletic event.
Abstract:
An apparatus for recording identifying data relating to the use of a credit card, cheque or the like and for dispensing a receipt disclosing at least part of such data; the apparatus comprises a housing in which a camera is mounted for taking, through a one-way mirror, a picture of the user situated in photographic view of the housing. A height scale and other identifying data are displayed on the inner side of the mirror and are non-visible to the user but in photographic view of the camera. Activation of the apparatus is accomplished when the user inserts the credit card, cheque or the like into an appropriate slot provided in the housing and, if required, the indicated amount in a coin slot. A weight scale may also be provided to identify the weight of the user.
Abstract:
A heart rate monitor device suitable for use in monitoring aerobic exercise training, automatically calculates a fitness parameter for a subject by monitoring the subject's heart rate and pacing the subject through a submaximal exercise stress test protocol. A microprocessor in the device is fed data peculiar to the individual subject, and then generates pacing signals to produce audible tones or beeps. The stride frequency, or rate of the tones varies at intervals so that the subject can exercise by running at progressively faster speeds. At the point of exhaustion, or maximum heart rate, the subject's maximal oxygen uptake capacity is calculated, based on the elapsed time, and is displayed as a fitness parameter. The subject's exercice level is automatically monitored based on his or her exercise heart rate, maximum heart rate, and rest heart rate.
Abstract:
An identification system is provided wherein one senses the position of optically significant features along the length of one or more fingers, such as the length and/or the optical characteristics of the under surface of one or more fingers. The finger to be measured is placed over a slot on the sensing device and at least a portion of the under surface of the finger is illuminated. A light pick-up device under the slot determines the position of optically significant features by means of light reflected from the finger.
Abstract:
Disclosed is an apparatus of examining a patient in rachioscoliosis comprising means for: projecting a reference stripe-like pattern having a plurality of horizontal stripes on the back of the patient held by support means so as to form contour lines crossing the back; viewing the contour lines, which are distorted in dependence on the relief of the back of the patient, from an angle within the range between 1° and 90° with respect to the optical axis of the projection; measuring a difference between amounts of distortion on the right and left portions of the contour lines; and detecting any bilateral unsym- metricality on the basis of the measured difference.
Abstract:
Apparatus is provided which enables the assessment of mobility of human and/or animal joints to be carried out. A flexible transducer (1,23) includes a conductive elastomer (2), which, when stretched, provides a change in an electrical output signal. The transducer is located over the joint to be investigated and during movement of the joint electrical signals from the transducer output which are a function of joint mobility, are produced. The signals are digitised and stored in a memory (17, 33) and are compared with a bank of data from normal and pathological subjects stored in a continuously updated memory (45, 34). When the comparison locates the 'best fit' between the joint movement and the stored data, the type of joint movement is classified and the result is presented on a visual display unit (43). The movement signal can be conditioned so that the angular displacement of the joint, the rate of joint movement, acceleration of the joint can be estimated and classified. The force produced by the joint can also be calculated using the acceleration and an estimate of the mass moved. This system permits the progress of an individual to be monitored and to identify joint movement characteristics in particular patient populations. The transducer, when combined in a composite unit with electrodes (27), is also used to accurately assess the degree of neuromuscular activity during and after anaesthesia.
Abstract:
An apparatus for carrying out dynamic podologic study capable cf allowing the viewing and recording of images is given whereby said device includes a frame (1) supporting a transparent and preferably horizontal track (2) having sufficient size so that a patient may take several normal steps thereon, and supporting in turn a mirror (5) located in a plane below said track and including rails (3,4) for a displaceable support (6) which holds at least one camera (11) with its focus directed preferably towards said mirror (5).
Abstract:
An automatic fingerprint enrollment and identification technique is provided for automatically processing an input image represented by pixels having either a one or a zero value. The automatic processing involves a series of steps in which the initial processing is a rough screening technique for eliminating a reasonable portion of the noise while passing through almost all of the minutia. As the steps proceed, the processing becomes more complex to provide a tighter screening out of noise while passing through as much of the minutia as possible. The later steps by operating on relatively fewer minutia or anomaly points that the earlier steps can be economical though more complex so as to be more discriminate than the earlier steps. The processing provides an optimum trade off between enrolling as large a proportion of the population as possible while minimizing the number of false identification errors.