Showing papers on "Remote control published in 1979"

Remote control of video

Abstract: This invention relates to a system providing for the remote control of video signals controlling remotely television channel selection and plural functions including tuning the composite television signal, manually varying the channel selection of the tuner, mixing of an auxiliary intelligence signal into the incoming signal when it is in the baseband format, simulation of depth picture on the television screen giving a three dimensional affect, manually varying the characteristics of the baseband luminance, chrominance and audio information as a function of viewer preference. The invention also provides for a wireless coupler for separately retrieving the auxiliary intelligence signal and reproducing it. Receiver functions are controlled without direct connection or modification to the receiver.

Remote controlled high wall coal mining system

Abstract: A high wall mining system including a continuous mining machine, a remote control station outwardly of the high wall from which extend electric cables wound on cable reels which extend to the continuous mining machine enabling the operator to control the machine based upon television pictures transmitted to the control station from television cameras on the machine and the signals from laser and sonar guidance systems provided at the control station in cooperation with elements on the continuous mining machine and an extensible and retractable vacuum air conveyor system for the coal recovered by the mining machine.

Remote audio and brightness control circuit for television

Abstract: A remote control switching circuit is provided for enabling a person watching and listening to television to edit out unwanted portions of a television program. Thus, while watching television, when an unwanted portion appears, the watcher uses a remote control device for actuating switches which provide for replacing the audio of the television set with the audio of an alternate sound source and for simultaneously dimming the picture on the tube of the television set so that it is only faintly discernible. Then, by viewing the picture tube, the watcher can see by observing the faint image on the screen when to use the remote control device to again actuate, i.e., reverse, the switches for returning to the audio of the program of the television set in place of the audio of the alternate source and for simultaneously brightening the picture on the tube for normal viewing.

Multichannel remote control system

Abstract: PURPOSE:To increase the number of channels which can be set and to realize a multichannel remote control system that has the occurrence rate of malfunction decreased, by providing a blank unit in the repetitive period of a control signal. CONSTITUTION:When a control signal formed of a few units of modulated frequency signals F1-F4 is transmitted repeatedly at the side of transmitter 1, two blank units are provided in this repetitive period following a control signal of six units, for example, and then the control signal of six units is newly sent out. At the side of receiver 2, storage is done sequentially from the 1st unit of the control signal following the blank unit and four frequencies F1-F4 are combined into six units, so that all combinations can be utilized for channel setting. Further, when two transmitters 11 and 12 are operated simultaneously, the memory of other receiver 23 is stored with a received pattern as much as six units, so that the probability that the pattern of the channel of receiver 23 agrees will lower as much as blank units.

Optically coupled remote control system

Abstract: A system for remote control of an articulated loading arm, comprising a light source and a plurality of light actuated relays enclosed in an explosion-proof container, and a plurality of light-controlling switches mounted adjacent the loading arm. Light from the source is conveyed through a plurality of light pipes to the switches which either interrupt or transmit light to a plurality of optical fibers which are each connected between one of the switches and a corresponding one of the relays. The light pipes, switches and optical fibers can be used to control operation of the loading arm in a potentially explosive environment while the relays open valves and provide control of hydraulic fluid from the safety of the enclosed container. The controlled hydraulic fluid provides power to a plurality of hydraulic rams which operate the loading arm.

Remote control of appliances

Abstract: This invention relates to the remote wireless control of electrical AC and/or DC appliances, devices, apparatus without relay attachments to the appliance or to the motor driving the appliance or device or modification to the appliance or device. The level of operation of devices may further be controlled remotely, wirelessly, via amplitude modulation, phase, or pulse, or by increasing or decreasing frequency. Motor speed may further be controlled by a beam of visible or invisible light, or by preprogrammed signal eminating from a tape recording or other programmed material. The operation of one or more devices may be also varied automatically remotely, wirelessly, in or out of sequential order.

Automatic and remote control of broadcast television and radio transmitting stations

Abstract: The paper discusses the benefits to be obtained by the use of automatic and remote control techniques, and explores the factors which have determined the rate of progress in introducing such techniques. Two major constraints that have affected the introduction of unattended stations, namely the reliability of television and radio transmitting equipment, and the ability to measure automatically and satisfactorily those parameters of the transmission which are indicative of a fault condition. Concurrently with the development of reliable equipment and measuring systems, there have also been developments in the field of data transmission, including telemetry and remote control systems, which have significantly contributed to the system design of unattended and remotely controlled stations. The paper begins with an examination of those factors which contribute to the reliability of television and broadcast-transmission systems, and discusses the choice of components, layout of equipment, and the overall system design. A description of standby systems is given together with the associated control systems. The use of control systems always involves the ability to measure, and, if the control systems are to be automatic in operation, then the measurements must also be automatic. The paper therefore examines the problems of automatic measurements in television and sound-transmission systems. These automatic measurement systems are not yet fully comprehensive, and most broadcasters therefore supplement the automatic control system with manual override functions which can be exercised at a distance. This creates the need for telemetry and remote control systems. The methods of providing remote control to override the automatic systems and to relay operational data to the control points are described. Finally, the paper describes some of the methods employed by broadcasters in Europe and South Africa showing how these features have been combined to provide automatic and remote

Remote control apparatus

Abstract: PURPOSE:To make possible sneding-back and collating for the apparatuses excited by AC and DC, in a remote control apparatus equipped with the faculties of receiving instruction signals and controlling an object apparatus, and at the same time, of certifying whether errors are present or not in the content having executed.

Assignment change remote unit of master test device

Abstract: PURPOSE:To perform the remote control by making it possible to change the circuit for device assignment by the button operation of a hand key set by providing a contact group of a relay group and its control part.

Remote control/digital tuning interface with parallel operation with manual switches

Abstract: A remote control-digital tuning interfacing system wherein an "on board" receiver at the means to be controlled receives coded transmission from the remote point and demodulates it to produce a digitally coded output which is fed to an "on board" decoder producing the appropriate control voltages to selectively operate electronic switching means. The electronic switching means parallel "on board" push-button operated switches so that a remote control operator can effect, from a remote point, the switching corresponding to that performed at the remote point, thus, only the switching is duplicated and the control complication all resides at the means to be controlled location rendering the system independent of different types of control operation.

Remote control system

Abstract: Remote control signals which are transmitted non-line-conducted by means of radio-frequency waves are used for switching load objects on and off in a power system. For this purpose, radio waves of existing transmitters, for example broadcast transmitters operating in the medium-wave band (520-1560 kHz) can be used. The transmitter operating in amplitude modulation is modulated, also in amplitude modulation, with the remote control commands in a frequency range which is below the ordinary modulation band (10 to 30 Hz with an audio-frequency range from 50 to 10,000 Hz). For this extraordinary modulation, a reduced modulation percentage of 5% is provided so that no special measures need to be provided at the transmitter end. The receiver (1) for these remote control commands is designed in such a manner that it is capable of separating the weakly modulated pulses from the ordinary modulation so that the latter cannot trigger any faulty switching. For this reason, a low-frequency filter (12) is provided as essential component of the receiver in order to recover the coded remote control commands. The output of the filter (12) is conducted via a rectifier (15) to a level comparator (18) which only passes pulse sequences which reach a modulation percentage of approximately 5%. The switching member (2) for switching a load object (3) on or off is controlled via a following decoder (21).

Player remote control having single wire control

Abstract: A remote control apparatus is provided for a record/playback device to provide control signals to actuate the device for recording, for playing back or retrieving, and for reversing or rewinding operations. The control signals are derived from separate switches and transmitted along a single signal conductor. A logic circuit responds to the signals on the single conductor to activate different output lines selectively for the different operations. The record/playback device typically is of the type that records and plays back audio information, or that records and projects visual information.

Transmission code system

Abstract: PURPOSE:To shorten the test time of a remote control system a great deal, by allowing folded test byf adding code for test to the transmission code of information for control, in a transmission code system in a remote control system.

Input control system

Abstract: PURPOSE:To provide an input control system enabling the error operaton to prevent even containing the external noise into the input signal. CONSTITUTION:A remote control system in which the operation unit 1 including the switch 11a-11c is connecting with the control unit 2 located at a certain distance through the cable 3 is transmitting a requency signal into the switch, the a frequency signal being cmparing with the frequency signal sent back when closing the switch. When the compared coincidence power agrees with more than a certain time, the input control system is composed to include the command signal. In other words, the clock signal generator 21 is provided. The clock signal is given to the counters 22 and 23 and the clock input terminal or FF 27a-27c. The power of exclusive OR gate 26a-26c is given to R terminal of respective FF. Further, the timing signal T1 as a set signal is given to S terminal.

Switching system for remote control of loads - has signals passed along power connections from transmitters to switching units

Abstract: The object is to reduce the number of connections necessary for the remote control of loads. The switching units (AE1, AE2...AEm) are connected in parallel across the power supply (SPQ) and the signal function generators (SF1, SF2,....SFn) are similarly connected. One function generator controls at least one switching unit through signals passed along the power connections (L1, L2). The power supply for the control circuits is derived from the main power supply (SPQ). In addition to switching commands the system can also be used to send back check signals to verify the execution of a command.

Remote control system

Abstract: PURPOSE:To permit flexible use of a plurality of controlled apparatus in a television or like broadcasting equipment by successively scanning a plurality of remote control places from the side of the apparatus and transmitting the state of use of each apparatus in the first half of the sequence of control between the controlled apparatus and the individual remote control places. CONSTITUTION:A plurality of controlled apparatus 1 are connected to a plurality of remote control places, for instance studios 1 to N, by signal lines 8 and control lines 9. In the first half of the control sequence, a network controller 10 successively scans apparatus remote controllers 6 in the individual studios. To this end, the network controller 10 controls a control signal switcher 40. When the network controller 10 is connected to the appratus remote controller 6 in each studio in one-to-one connection, a transmission demand signal is transmitted to the controller 6, and in response to this signal the controller 6 sends back an apparatus connection demand signal from an operation panel 7. The network controller 6 controls signal swircher 3 and control switcher 4 by comparing the demand signal and the connection state.

Remote conrol process of electronic machinery

Abstract: PURPOSE:A remote control process to facilitate numerous formation of remote control signals to trnsmit and receive in such a way that signals of a settled frequency and FM modulated signals are alternately transmitted from a remote control transmitter.

Frequency synthesiser for remote control - is esp. for radio and TV receivers and has computer regulated programmable frequency divider

Abstract: The frequency synthesiser, for remote control for radio and TV receivers, has a programmable frequency divider whose dividers are set by a computer using a digital data store. The store receives its setting data via a data bus. The data bus is enabled by means of control pulses (strobe) sent via an address bus by a computer. When the microcomputer orders a change of range, an addressed control signal is applied to the programmable divider to alter its denominator.

Development of an inductive communications system for Morgantown People Mover

Abstract: The Morgantown People Mover (MPM), located at Morgantown, West Virginia, uses low and medium frequency inductive communications for the wayside-to-vehicle (uplink) and vehicle-to-wayside (downlink) communication links. The system has six uplink and one downlink tones in the low frequency (6-50 kHz) range used to communicate speed, switch, calibration, and stop commands and the collision avoidance "safe to proceed" signal, also downlink switch verification. In the medium frequency range (90 - 130 kHz) uplink (command) and downlink (status) digital data are transmitted using two-tone FSK messages. The vehicle interfaces with inductive loops in the guideway surface which range from ten to one thousand feet in length and are driven through feedlines of up to several thousand feed in length. This paper discusses the development of the MPM Inductive Communication System. Included is a brief history of the Morgantown People Mover and an overview of the Inductive Communications System presently in use. Each subsystem is discussed and significant design considerations along with operational data are presented. Emphasis is placed on our experience with this mode of communications.