Abstract: A vehicle security device is disclosed which includes a multiplicity of video cameras mounted in a vehicle in hidden fashion, and designed to be activated responsive to sensing of a condition such as, for example, unauthorized entry of a vehicle, striking of the vehicle and the like. A controller controls activation of the cameras as well as activation of a local and remote alarm system. A recording mechanism may be provided to record that which is observed by the cameras and a further transmitter may be employed to transmit video pictures to a remote location.

Abstract: The invented method scales a graphics image by recognizing under what resolution the image was created, identifying the resolution of the printer that will actually print the image, calculating a convenient virtual resolution, approximating, on a pixel-by-pixel basis, using the virtual resolution, how many new pixels are required to emulate each existing pixel and then storing the new pixels in memory or printing them.

Abstract: A method of generating high power optical signals in the 1-100 GHz frequency range uses a frequency modulated semiconductor laser and an interferometer. This method is especially useful for microwave carrier frequency optical communications, distribution of microwave frequency local oscillator signals, and the generation of sinusoidal optical modulation at frequencies that cannot be reached by direct modulation in semiconductor lasers or with external module lasers.

Abstract: An auxiliary pedestrian crossing warning signal system for use in automobiles equipped with a main signal system including front and rear, left and right amber turn indicator lamps incorporates an alternating flasher into the main signal system via a relay to provide communication between a driver and a pedestrian in order to reduce vehicle-pedestrian collisions. An automatic shut-off timer is connected to the relay circuit for controlling the duration of the auxiliary system operation after the brake pedal is released. The auxiliary system is operated by a momentary pressure on a pushbutton switch mounted in the dashboard and by the application of pressure to the vehicle brake pedal, so that the auxiliary system operates only when the pushbutton is energized and the vehicle is stopped. In addition to the in-dash indicator lights, a pair of indicator lights can be mounted beside the pushbutton switch as an additional indication that the auxiliary system is in operation.

Abstract: Apparatus including an L-shaped handle mounting a battery pack at one end thereof and a selectively actuated flashing sign at an upper end thereof wherein the flashing sign includes a border of a first coloration contrasting to a central panel of a second coloration each coloration formed of a reflective material wherein the handle of the organization includes a reflective strip of a first coloration including a handle and a switch member. The organization may further include a joint member to permit inter-folding of the organization for ease of transport and storage.

Abstract: A theft deterrent system according to which the battery of a motor vehicle is selectively rendered inoperative. A numbered code is manually entered onto a key pad which may be located on the dashboard of the motor vehicle. The key pad is connected to an integrated circuit which is an integral component of the battery. When the proper numbered code is entered, the battery is rendered either operative or inoperative, as desired. When the battery has been inactivated and an incorrect number is entered, as by an unauthorized person, the battery remains inactivated, but an alarm is energized.

Abstract: In a conventional TV, audio or other equipment having a speaker(s) and a source of power. A smoke detector is mounted inside the TV case, the output of the smoke detector being connected to the TV speaker and a power supply connected to the TV source of power, the output of said power supply being connected to the smoke detector, the smoke detector and power supply being packaged together and installed inside the case of the TV. A second oscillator may be added to thereby emit at least four frequencies because of the hetrodyning of the two oscillators.

Abstract: A pressure sensing device is provided for sensing pipeline pressure particularly for pipes transporting corrosive or abrasive fluids and slurries where it is essential to isolate the instrumentation from the fluid in the pipeline. A body member is provided with a central bore with a recessed midportion in the body member extending 360.degree. around the central bore. A replaceable sleeve member is screw-fit within the body member and has a recessed midportion to mate with the recessed midportion in the body member to form a chamber. A thin metal wall in the midportion of the sleeve member forms an end wall of the chamber within the body member. A plurality of outwardly extending pleats or folds are die-formed in the thin metal wall so as to permit the metal sleeve to readily move inwardly and outwardly in response to variations in pressures of fluid passing through the sleeve. A pressure sensing instrument is mounted on the body member and the chamber within the body member and sleeve is filled with fluid.

Abstract: A fuel filler alarm for boats includes a housing, a whistle element on the housing and a suction ring on the housing. The suction ring is operable for detachably securing the housing to the hull of a boat adjacent a fuel tank vent thereon so that air passing outwardly through the vent passes through the housing and the whistle element. The whistle element is responsive to the outward flow of air through the fuel tank vent during a fuel filling operation for producing an audible whistling sound, while sound essentially stops when the associated fuel tank reaches a substantially full condition.

Abstract: In an electrooptical arrangement for remotely controlling an electronic apparatus with a remote control transmitter, the transmitter is formed with three sources of radiation whose radiation patterns are different from each other and can be comparatively detected relative to each other to indicate the tilting of the transmitter in different reference plane directions. A radiation detector at the receiver side detects the different radiation intensities for the signals from the three sources, and the relation between the signal intensities is evaluated to determine the tilt angles of the remote control transmitter in the reference plane directions.

Abstract: An image sensing apparatus is arranged to have the image of one and the same object received by a plurality of image sensing devices through shutters discretely arranged in pairs with these image sensing devices respectively. The apparatus is provided with a synchronizing circuit for synchronizing exposure timings of these shutters.

Abstract: A method and an apparatus for identifying articles moving along a surface, especially suitable for conditions in which the surface and/or the articles comprise comparatively much electrically conductive material. The articles are provided with electronic responders, each having two electrodes which are insulated from each other and in operation, face the surface. The surface is provided with corresponding electrodes connected to a transmitter/receiver device. When the electrodes of a responder are located opposite the electrodes of the transmitter/receiver device, an electric field is produced between these electrodes, enabling information transfer between the responder and the transmitter/receiver device.

Abstract: A low pressure transducer is disclosed which utilizes a stainless steel foil diaphragm. An electrically conductive layer is deposited onto a non-conductive planar disk to form one plate of a capacitor. An epoxy ring is silk-screened onto the non-conductive plate to form an insulative washer between the stainless steel foil and the conductive layer on the non-conductive plate. A stainless steel ring is placed on top of the stainless steel foil and pressed down toward the non-conductive plate until the capacitance formed by the conductive layer screened onto the non-conductive plate and the stainless steel foil diaphragm reaches a predetermined level.

Abstract: A system for alerting passengers, particularly school children, that the particular bus they are to board is approaching. The passengers have a receiver which senses the particular signal transmitted by the approaching bus. The passengers listen for and/or watch for a visual indication that the bus is now at the location on its route where preparations should be made for boarding. The bus carries a transmitter which sends out a specific signal identifying that bus. The signal is derived from data which was entered into a signal generator in the transmitter relating to the particular school district, the route to be traveled by the bus, and the number of the bus. Each residence where the school children are waiting has a receiver which will activate an indicating device only when the specific bus identification signal is received.

Abstract: The foregoing and additional objects are obtained by the oil measuring system according to the present invention. A first oil level measuring device is in fluid communication with the oil pan and generates a first signal indicative of the oil level within the first measuring device. A second oil level measuring device is also in fluid communication with the oil pan and generates a second signal indication of the oil level with the second measuring device. An imaginary line passes from the second measuring device, through the middle of the oil pan, and to the first measuring device. Also provided is a means for indicating the oil level in the oil pan in response to the first and second signals. Accordingly, the oil level may be checked without using a standard dipstick. Further, the present system is effective regardless of the tilt of the engine.

Abstract: An apparatus for measuring moment of inertia incorporating a torsional pendulum and an analog electronic circuit. The circuit measures the period of oscillation, sets a scaling factor equal to the torsional coefficient of the resilient member, and computes moment of inertia by multiplying the scaling factor by the square of the period of oscillation. The moment of inertia is then displayed in metric units.

Abstract: A warning device that is removably affixed to overhead loads which are moved by an overhead crane. The warning device has a rotating beacon light and a horn, both activated by a switch and powered by internal batteries. The device is attached to steel loads with magnets or to non-metallic loads with straps and is activated whenever the load is raised and in motion. The device is removed from the when the load arrives at its destination load and is then stored by attaching the device to the crane hook with a safety cable.

Abstract: A method for zero-resetting of a device for measuring transmitted torque while a cycle is in motion consists in monitoring a phenomenon or a parameter which is normally variable during normal use of the cycle and which disappears or becomes constant when the driving wheel rotates on free-wheel motion. When the disappearance or the constant character of the phenomenon or parameter thus monitored is observed during a predetermined period of time, one initiates zero-resetting of the detector system or of the measuring system proper of the torque-measuring device. The device for carrying out the method includes on the one hand a monitor for the phenomenon or parameter and on the other hand a control which are operated in dependence on the signal emitted by the monitor and which are then capable of producing action on the detection system or the measuring system in order to reset either of these two systems to zero.

Abstract: A fault-tolerant fiber optic coupler/repeater for use in a terminal in a high speed digital, audio or video data transmission system has optical data input from one or a plurality of upstream terminals and sends optical data to one or a plurality of downstream terminals via fiber optic lines. The terminal includes one or more bypass lines and is connected to the bypass line of at least one upstream terminal. The terminal receives optical data signals from upstream terminals via a primary line and one or more bypass lines which bypass one or more of the upstream terminals. The terminal includes a logic device which analyzes the signals received by the terminal via the primary line and via the bypass line and analyzes or compares these signals to preset values. The logic device selects the signal having characteristics closest to the preset values and rejects the other signals.

Abstract: An electronic system for automatically identifying objects employing microminiature electronic circuitry supported by each object and containing three operable subsystems, (a) a means for converting shortwave energy from a local energy field to electrical energy, (b) a means for generating coded electrical signals and (c) a means for shortwave transmitting such signals as codes to a local receiver. The system also includes a shortwave receiving means and an electronic computer operable to process and analyze the coded signals received by the receiver from the electronic circuitry energized when in the energy field. The computer generates control signals which are recorded and are utilized in tracking the objects.