Abstract: A one-way travel computation detector device for an exerciser having at least three sensors provided with an operation route of any movable exerciser wherein the sensors are equally spaced from one another. The sensors send feedback signals which are different from one another to facilitate signal identification by a central processor. A permanent magnetic wave transmitter is provided on a mobile part and has a working area capable of covering the entire exercise path. One way travel of the mobile part can be accurately computed upon acquiring of a one-way signal sequence from each of the sensors. The central processor accepts only a predetermined signal sequence.

Abstract: The invention is a method and an apparatus for determining travel data of a travel device when wheels or rollers of the travel device intermittently have ground contact. The apparatus has an odometer on at least one measuring roller. For the correct determination of the travel data, there is a correcting device for correcting the path length measured by the odometer in the case of interruptions of the ground contact of the measuring roller. In the case of established, sporadic interruptions of ground contact, the measured path length is corrected for obtaining the actually covered path length.

Abstract: In a vehicle navigator using an acceleration sensor for detecting a running distance, the precision of measuring the running distance is intended to be improved. Output data of the acceleration sensor during a predetermined time duration is stored in an output storage, and the average value or "mean acceleration" of output data is calculated by a mean acceleration calculator A running distance calculator calculates a difference between the acceleration measured with the acceleration sensor and the mean acceleration calculated by the mean acceleration calculator, and this difference is double integrated to obtain the running distance.

Abstract: A strip-shaped, elastically flexible measurement strip for length measuring devices or angle measuring devices having a measurement scale is formed of two elastically flexible stripes which adhere to one another via a viscous intermediate film, the measurement scale being applied to one of these stripes.

Abstract: A device comprised of at least a pair of accelerometers and a tilt sensor mounted in fixed relation to a datum defining plane (sole of a shoe) maybe used for extracting kinematic variables including linear and rotational acceleration, velocity and position. These variables may be resolved into a selected direction thereby permitting both relative and absolute kinematic quantities to be determined. The acceleration is determined using a small cluster of two mutually perpendicular accelerometers mounted on a shoe. Angular orientation of the foot may be determined by double integration of the foot's angular acceleration (which requires a third accelerometer substantially parallel to one of the two orthogonal accelerometers). The two orthogonal accelerations are then resolved into a net horizontal acceleration or other selected direction which may be integrated to find the foot velocity in the selected direction. The average of the foot velocity corresponds to the subject's gait speed.

Abstract: In an indicating device having a stepping-motor drive, an indicating element can be driven by a gear wheel which is in engagement with a worm which is connected with a stepping motor by a worm shaft. The stepping motor is preferably formed of two stators, and of two permanent-magnet rotors which are arranged, fixed for rotation, on the two ends of the worm shaft. The rotors are arranged with half a pole spacing apart, preferably 90.degree..

Abstract: A system, method and apparatus for use on vehicles having road wheels with pneumatic tires that includes sensors that produce signals that are a measure of the rotational speed of said wheels, indicators arranged to provide information to the driver of the vehicle, and a computer operably associated with said sensors and indicators. The computer is arranged to monitor the wheel speed sensors during vehicle operation, and to perform at least one of the functions of: determining a value that represents tire inflation pressure and signaling the driver when this value falls below a predetermined value, determining a value that represents tire inflation pressure and signaling this value to the driver, calculating a value that represents vehicle speed and signaling this value to the driver, and calculating a value that represents distance traveled by the vehicle and signaling this distance to the driver.

Abstract: A battery-powered rotation detector detects passing of a rotating magnet attached to a vehicle wheel to generate and transmit a rotation signal. A receiver receives the rotation signal. A processor computes the vehicle running condition (e.g., speed, traveled distance) from the received rotation signal and displays the results on a display device. The processor monitors intervals between the rotation signals to detect when the vehicle is stopped. When the vehicle is stopped, the processor disconnects a battery power supply from components such as the display device for power savings. In addition, the processor checks the strength of the received rotation signal to determine a capacity of the battery in the rotation detector, and operatively indicates a power failure of the rotation detector.

Abstract: An elevator speed and positioning device includes an elongated member and a rotating disk. The elongated member includes an apparatus for indicating position along the member and the disk includes an apparatus for communicating the indicating apparatus. A constant relationship exists between the elongated member and the disk such that relative positions between the two are repeatable. The relative motion between the elongated member and the disk may be quantified to determine the relative position of the elevator car.

Abstract: Apparatus and method for accurately timing speed of aquatic vehicles, particularly for water skiing competition and the like. Floating magnetic generating transmitters are placed under one or more linearly aligned buoys configured to accommodate an aquatic vehicle's path. Water-tight detection means is placed on the aquatic vehicle for receiving a series of signals which are induced when the vehicle cuts through the magnetic field produced at a plurality of such buoys. The signals, responsive to the vehicle speed, are amplified and extraneous high frequencies attenuated, and speed or course traverse time calculated and displayed.

Abstract: A device that characterizes the trajectory followed by a movable object after a piece of sporting equipment comes into contact with the movable object, e.g., by identifying velocity, the distance that the object would travel if unobstructed in standard ideal conditions, the curvature of the path travelled by the object, the direction of travel of the object, or the direction or magnitude of spin of the object. The device includes at least one force sensor element arranged to be located on the piece of sporting equipment, which is held or worn by a user. The sensor element detects at least a component of the force of contact between the piece of sporting equipment and the movable object. The sensor element provides a signal representing the intensity of the component of the force of contact when the contact occurs. An electrical processing circuit is arranged to receive the signal from the sensor element and to process the signal to produce an output characterizing the trajectory of the movable object.

Abstract: Traction apparatus for driving a vehicle and accurately sensing the distance traveled, in which a drive mechanism is encircled by a separate ring-shaped encoder wheel. The encoder wheel, which is part of a travel-sensing mechanism, nests annularly with the drive mechanism so that the width of the combination is minimized. The travel-sensing mechanism can be assembled to the vehicle without disturbing the drive mechanism. There is enough radial clearance in the toroidal encoder wheel to permit the drive mechanism to move up and down within the encoder wheel. The encoder wheel has approximately the same outside diameter as the drive wheel, so certain common-mode measurement errors cancel. The encoder wheel and the drive wheel are approximately concentric and closely spaced laterally to minimize measurement errors that would otherwise occur upon turning of the vehicle.

Abstract: A braking distance verification system is disclosed which makes use of a specially designed pulse to voltage converter circuit and a portable computer-based data acquisition system to measure grade, speed, and distance information of any rail vehicle. The preferred embodiment of the device is particularly adapted for mass transit systems. It provides a method and apparatus for physical verification, under actual test conditions, that an adequate braking distance has been provided in each block of a signal block design system. The portable system may be used with any vehicle braking system which provides an electronic wheel tachometer or equivalent, or may utilize a portable doppler radar if tachometer information is not available.

Abstract: A travel detecting apparatus is disclosed which generates a pulse signal in response to vehicle motion and detects the actual rate of vehicle travel in accordance with the pulse signal. The apparatus comprises a speed or RPM sensor coupled to an automotive transmission for generating a first pulse signal representative of the vehicle speed or RPM, a tire-size setting switch for setting tire information relating to the dimensions of the tires of the vehicle, and a CPU for frequency converting the first pulse signal in response to the tire information to generate a second pulse and for detecting the rate of vehicle travel in accordance with the second pulse signal.

Abstract: An improved speedometer assembly of the electronic type which utilizes an electric motor mounted to a frame whereby the motor has an end flange portion supported against the frame by means of at least one swingable gate-like latches which are attached to a stationary support by an integral living hinge portion which provides a force against the edge of the flange.

Abstract: A device for measuring the movement of a motor vehicle with a speedometer (11, 13) which produces a control signal when it is determined that the speed has exceeded a predetermined limit. A distance gauge (11, 15) is equipped with a release mechanism (14) which is activated by the control signal so that a record can be made of the distance driven only when such a control signal is received from the speedometer. The distance gauge (11, 15) is preferably equipped with a connecting device (14) which permits a stepwise or continuous increase in the weighting of distance registration following increased speed above the first, predetermined limit.

Abstract: The invention relates to a method and means for determining the position of an elevator car on the principle of floor selection by means of a pulse train, whereby the position of the elevator car is determined on the basis of a pulse count indicating the elevator's speed. The achieve a more reliable pulse count based floor selection system which is suited for use with any type of elevator, the pulses required for calculating the elevator position for floor selection are obtained from an acceleration sensor placed on the elevator car, the output signal of which is integrated so as to obtain a voltage representing the speed of the elevator car, said voltage being converted into a pulse train whose frequency is dependent on the speed of movement of the elevator car.

Abstract: A generator assembly is swingably mounted on the tail of a ski with a generator wheel for snow surface contact. A carrier component of the generator assembly is vertically positionable to permit retraction of the generator wheel from snow surface engagement. A tubular control member permits remote positioning of the carrier as by a ski pole tip. Pivot means permits horizontal swinging motion of the generator assembly. Speed indicator means are actuated by changes in current flow from the generator. Contacts on a ski binding component permit transfer of electrical current to a ski boot for various purposes.

Abstract: A measuring and indicating device for a snow skier including a rotatable roller attachable to the rear of a ski and adapted to rotate in rolling contact with the underlying snow utilizes an indicator unit positionable remote of the roller such as upon the wrist of the skier. The device further includes elements supported adjacent the roller for sensing the rotation thereof and generating signals corresponding to the sensed rotation. The indicator unit includes a calculator for receiving the signals generated by the sensing elements and calculating a predetermined characteristic, such as speed or distance, of travel by the snow skier corresponding to the received signals. The indicator unit further includes a display for displaying the calculated characteristic in the form of a numerical value.

Abstract: A system for measuring distance traveled by a vehicle periodically updates the accumulated measurements, displays the updated measurements and electronically stores corresponding accumulations of updated distance data in a non-volatile memory device. The system employs a method of reading through the sequentially ordered storage locations of the non-volatile memory to determine the most recently stored correct data value as a value to be both displayed and used as a base value for subsequent measured distance accumulation.

Abstract: The odometer in particular for a cycle comprises a case 1 containing a micro-processor connected to a movement sensor associated with a wheel of the cycle, a display for the items of information and at least one control key relating to the display of the items of information processed by the micro-processor. The control key is constituted by at least one part of the upper side of the cover 3 of the case 1, which cover is pivotally mounted on the bottom 2 of the case and it includes devices for emitting sound signals respectively corresponding to the nature of the magnitudes appearing in the display devices and seen through a window 12 of the case.

Abstract: The device accurately calculates, retains and digitally displays the average speeds of and/or distances traveled by a skier. These functions are performed non-mechanically thereby allowing the ski to perform naturally. The device can be easily installed upon and removed from the ski without the use of tools and can mount upon the ski without causing any permanent damage to the ski.

Abstract: A jogger speedometer and odometer device adapted to travel over a surface while secured to a jogger's body, is provided and consists of a wheel rotateably connected by a shaft between the bifurcations of a forked. The wheel is mechanically connected to an indicator unit attached to a handle that is attached to a flexible shaft. The wheel activates the indicator unit through the flexible shaft in accordance with the relative movement between the wheel and the surface.

Abstract: In a highly compact odometer an electric motor which drives a mechanical display thereof, is disposed within the set of annular figure wheels used in the display and drivingly connected to said wheels through a worm and worm wheel drive train. In the case of integrated "total" and "trip" odometers a multipole rotor having a torque capacity adequate for driving both odometers is disposed within the set of figure wheels used for the "total" odometer display while the coil is disposed within the "trip" odometer set. Yokes extend between the sets of wheels to provide a magnetic connection between the coil and rotor. To prevent reversing of the odometer and gear chatter in the drive train a one-way clutch type bearing is used to support the output shaft of the electric motor.

Abstract: The recorder comprises a case of moulded plastics material which forms in its lower part a driving cable entrance which is externally screwthreaded and bearings in which a shaft carrying a magnet of a tachometer and transmission means can be respectively fitted. The case further comprises internal ribs for supporting a sheet which closes the case and is in one piece with flanges which support the shaft of an indicator needle of a speedometer and counting means of the distance recorder and guide the fitting of the assembly inside the case.

Abstract: A conveyor chain motion measuring device is disclosed having a double take-off drive coupled with closed-loop drives and one-way clutches so as to produce accurate measurement of the actual chain speed and travel for the entire length thereof regardless of chain link pitch variations and also maintain such precise measurement when the chain is temporarily reversed and then resumes travel in a forward direction.

Abstract: A vehicle such as a speedboat or racing car is equipped with a magnetic sensing coil (22) for producing electrical signals in response to detection of magnets disposed at one or more positions along the course. In the case of buoy-mounted markers, the magnets (26) may be mounted on certain of the buoys (10,13,14,17). The output from the sensing coil (22) is used to control on-board timing circuitry to enable the average vehicle speed over the course to be determined and displayed.

Abstract: An apparatus for determining the position of an object which is moving along an axis at frequent intervals of time and without making mechanical contact with the object, comprising position determinator means for providing an accurate position determination of said object at relatively long intervals of time or position, means associated with said object comprised either of the combination of speedometer means and electronic integration means for time integrating the output of said speedometer means at relatively frequent time intervals for providing an instantaneous measurement signal or the combination of accelerometer means and electronic integration means for double time integrating the output of said accelerometer means at relatively frequent time intervals for providing an instantaneous measurement signal, and means for correcting the value of said instantaneous measurement signal at said relatively long intervals of time or position to be equal to said position determination made by said position deter

Abstract: A body-mounted measuring instrument senses the heart beat and inner body temperature of a user. The instrument includes a computing circuit and a timekeeping circuit for calculating elapsed time, total heart beats, pulse rate, and difference in body temperature from a predetermined normal temperature. A display is included for indicating various physiological parameters measured and an alarm system warns the user if an excessive heart rate and/or body temperature condition occurs. The instrument is well-suited for an athlete engaged in activities such as running, swimming and bicycling, not only as a safety device to warn the user of the occurrence of a dangerous condition, but also as a distance measuring and velocity computing device. The instrument computes distance travelled by the athlete during an exercise period based on the total number of heart beats and the increase in body temperature occurring during the exercise period.

Abstract: Device for measuring the speed and/or the distance for skiers, consisting of a toothed wheel positioned at the ski and rotatable around an axis always vertical to the ski axis, the toothing of the wheel being in mechanical contact with the snow, whereby the wheel is protected at the side and in front and the space in which the wheel is positioned is open towards the back.

Abstract: An inertial navigation system utilizing a servo-controlled two-degree of freedom pendulum to obtain specific force components in the locally level coordinate system. The pendulum includes a leveling gyroscope and an azimuth gyroscope supported on a two-gimbal system. The specific force components in the locally level coordinate system are converted to components in the geographical coordinate system by means of a single Euler transformation. The standard navigation equations are solved to determine longitudinal and lateral velocities. Finally, vehicle position is determined by a further integration.

Abstract: A device (1) for transmitting rotary motion from a first to a second shaft and for measuring the angular speed of said rotary motion, comprising a first and second pulse generator associated respectively with said first and second shaft, and governing, by means of a processing circuit, the operation of an electric motor (2) of direct current type one shaft (7) of which is torsionally coupled to said second shaft; and a speed indicator comprising means (25) sensitive to magnetic field variations is described. The main feature of this device (1) is that said second pulse generator comprises a magneto-electrical transducer (32), and a permanent magnet (9) is torsionally coupled to said second shaft; said magnet (9) determining the activation either of said magneto-electrical transducer (32), or of those means (25) of said speed indicator which are sensitive to magnetic field variations.

Abstract: Distance-measuring apparatus for attachment to a speedometer cable comprising a sensing assembly and a digital counter; the sensing assembly including a drum portion having a bore therethrough for disposition over an exposed section of the rotatable inner shaft of the speedometer cable, fasteners associated with the drum portion to secure the drum portion to the inner shaft, at least one magnet affixed to the drum portion adjacent a point on the periphery thereof, a housing surrounding the drum portion and spaced therefrom to allow independent rotation of the drum portion therein, fasteners associated with the housing to secure the housing to spaced ends of the sheath of the speedometer cable adjacent to the exposed section of the inner shaft, a magnet-responsive switch affixed adjacent a point on the periphery of the housing; electrical leads connecting the switch with the digital counter; the digital counter being capable of receiving and retaining a preselected constant value and adding the constant value

Abstract: Vehicle speed measuring apparatus employing separate measurement of elapsed time and distance to obtain average vehicle speed in which provision is made for providing signals representative of a calibration factor which can be utilized to correct the distance signals to a number representative of true distance.

Abstract: An electronic odometer and speedometer for bicycles computes distance and speed based upon input signals generated by interruption of a light beam by each spoke and the valve stem of a wheel of the bicycle. The interruption time of the light beam caused by the valve stem is substantially greater than that caused by the spokes; accordingly, it is readily detectable and the signal produced may be treated as a reference signal upon which the computations are based and the signals generated by the spokes provide a continuous real time update. Alternatively, the number of interruptions of the light beam per time, may be employed to compute the speed and the aggregate period of the number of interruptions may be employed to compute the distance. The light signal generating and detaching elements have non-movable parts and are mounted upon the frame of the bicycle without interfering with the normal removal and mounting of the wheel.

Abstract: An indicating instrument particularly for use in a vehicle comprises a first element which is moved behind a window of the instrument such that the amount of the first element visible in the window is indicative of the distance travelled by the vehicle, and a second element that is moved in dependence upon the speed of the vehicle and such that the second element is obscured from view in the window by the first element while a predetermined relationship exists between the speed and distance.

Abstract: A distance measuring arrangement has an accelerometer transducer of the force balance type in which a switch closed by the action of an acceleration force causes a constant current to flow in a coil to oppose the force and open the switch. The switch opens and closes in a repetitive cycle at the resonant frequency of the system, the closed switch gating clock pulses to integration means. The transducer may take two forms. In the first the proportion of time that the switch is closed in each cycle is proportional to the acceleration value. Distance measurement comprises counting the clock pulses to effect a first stage of integration and summating the counter totals every 1000 clock pulses to give a distance travelled signal. In the second, the proportion of time that the switch is closed in each cycle is proportional to the square root of the acceleration value and distance measuring comprises counting the clock pulses to give a signal proportional to the square root of distance travelled.

Abstract: Mechanical work and power transmitted through transmission elements such as chain drives is determined by deflecting a transmission element and measuring the distance and/or speed of deflection and the deflection force while the transmission continues its operation.

Abstract: An apparatus disposed in a speedometer-odometer drive assembly for transferring and translating the rotation of a speedometer drive cable to a speedometer needle registering speed and an odometer registering distance, having a field cup disposed at one end of a drive shaft in communication with the speedometer cable and rotatable about a central axis with this shaft. The rim of the field cup is discontinuous at at least one point about its periphery by virtue of a cut or split being upset with respect to the radial plane of the surface of the field cup rim. These cut or split edges of the field cup rim act to engage successive threads or teeth on a gear means driving the odometer as the field cup rotates. A flux cup is inserted into the field cup to cover a magnet mounted within the field cup. The flux cup responds to the magnetic field created by the rotating magnet, thereby driving said speedometer. The gear means driving the odometer comprise a camming means fixedly mounted on a face gear.

Abstract: A method and apparatus for displaying the brake stopping distance of a running vehicle by computing and displaying in a very short period of time the brake stopping distance of the running vehicle in response to its running speed and the surface conditions of the road. The displayed brake stopping distance varies by quickly responding to changes in the running speed of the vehicle and the surface conditions of the road. The brake stopping distance displaying apparatus comprises a vehicle speed detecting circuit for generating a signal corresponding to the running speed of the vehicle, a setting circuit for generating a signal corresponding to the friction coefficient of the road on which the vehicle runs, a computing circuit responsive to the two signals to generate a signal proportional to the square of the running speed and inversely proportional to the friction coefficient, and a display circuit for displaying the result of the computation in the computing circuit.

Abstract: A method and apparatus for measuring the displacement of structures using force balance accelerometers and double integration.

Abstract: In a continuous electrolytic foil forming process employing a constant d.c. voltage power supply, the speed with which the foil is drawn through the electrolyte is automatically adjusted by a feedback mechanism to maintain a constant value of forming current. In this process, the speed of drawing the foil corresponds inversely to the potential capacity of the foil as it enters the electrolyte at any given time. This speed or equivalent capacity and the corresponding location of the foil is monitored and recorded during the continuous film forming process.

Abstract: Device for indicating when a vehicle has travelled a predetermined distance, calling for inspection or servicing of some part of the vehicle. An electrochemical indicator integrates a signal indicative of the vehicle speed to provide an output indication.

Abstract: A counter mechanism for the digital measurement of increments of a selected physical quantity, such as distance travelled by a motor vehicle, includes a first set of numbered counting wheels rotatably mounted in sequence upon a driven shaft with gear means interconnecting said counting wheels one with another in a velocity ratio of 1 to 10, and a second set of numbered counting wheels similarly arranged on a second shaft driven from a predetermined one of said numbered counting wheels in said first set. The second set of counting wheels commences to count multiples of said increments when said predetermined one counting wheel commences to rotate. The second set of numbered counting wheels can be reset to zero by means of a ratchet resetting device without affecting the position of the first set of numbered counting wheels.