Abstract: A process for reducing motion-type false alarm of security alarm system includes the steps of merely activating the local warning system to produce local audio and/or video warning signals when any one of the motion sensors detects a motion everytime within the respective motion detecting area; delaying to activate the control panel as well as the phone dialing system which is built in the control panel for a predetermined period of time, wherein the security alarm system is in a verification condition; activating the control panel to normally respond by activating the local warning system and the built-in phone dialing system to transmit digital signals to a central station for dispatching to a designated police resource when at least one more detecting signal is sent from any one of the pre-designated motion sensors that detects another motion within the respective motion detecting area during within the predetermined period of time; and resetting the security alarm system to the original standby condition

Abstract: In a security and alarm service environment, a method and system for verifying the continuity of a telephone line 317 connected to a subscriber terminal unit (STU) 310 at a customer's premises. The STU 310 is connected by telephone line 317 to a network interface 315 which is connected to a line unit 320 by a twisted pair 325. Line unit 320 is located in remote terminal 330 which is connected to switch 335 by digital loop 340. Switch 335 is connected to scanner 345 by trunk group 350 and SMDI link 355. A low tone generator in STU 310 generates a low frequency tone that is transmitted to line unit 320. If telephone line 317 is cut, if STU 310 malfunctions, or if an alarm condition at the customer's premises is detected by STU 310, then the low tone is not received by line unit 320. Remote terminal 330 encodes a signaling bit that is transmitted over digital loop 340 to switch 335. The encoded signaling bit indicates whether or not the low tone was received by line unit 320.

Abstract: The device provides a protective enclosure OR barrier by inserting an internal housing frame into the already existing housing box provided for telephone line access. This frame accommodates a removable coverplate with custom cut holes designed for both lock (cam lock) and plunger switch (i.e. tamper switch). The original exterior cover plate is placed over the front of the inserted invention so as to hold the plunger switch down in position, ready for alarm activation. The installation of the above device prevents or deters a would-be burglar from cutting or damaging telephone lines after removal of the exterior cover plate.

Abstract: An extra security alarm system for monitoring conditions within a predetermined monitoring area and alerting persons located throughout the monitoring area, persons in the vicinity and appropriate emergency personnel of an emergency situation. The extra security alarm system includes a plurality of sensors strategically positioned throughout the monitoring area for sensing conditions within the monitoring area. Each of the sensors includes a control unit for analyzing the sensed conditions to determine if an alarm situation exists and generating a sensor signal indicative of the sensed conditions, a transmitter for transmitting the generated signal to the other sensors, a receiver for receiving sensor signals from the other sensors and an alarm for generating an alarm signal upon determining an alarm condition has been sensed by the system.

Abstract: A home alarm system for use by an authorized user while in the home, manual input commands to the system being required by the user as events around the home might occur for proper system operation. The system includes a programmable microcomputer having a specific preprogrammed operating logic and a multi-key control panel operably connected to the microcomputer. By manually depressing an arming key, the microcomputer is activated to initiate a first time delay. This would typically be done by a user at the ring of a doorbell or upon hearing strange noises and the like. Unless a multi-key disarming code is entered before the end of the first timing delay, a warning signal is activated and continues for a second preprogrammed time delay. Again, unless the disarm code is timely entered before the end of the second time delay, a very loud siren or other wide area broadcast alarm signal is activated.

Abstract: A portable alarm system in which the alarm functions are contained within a portable enclosure, communication is maintained between the alarm system and wireless security devices, and the alarm is capable of initiating a telephone call to a S security monitoring station either by conventional hard-wired telephone lines within a building, by cellular transmission, or by 1900 megahertz PCS. The alarm is capable of initiating a call over the control channel of a cellular phone system. The latch key function allows a child to make his/her parents aware that he/she has arrived home safely.

Abstract: An antitheft system installed on a motor vehicle has an electronic control unit connected to a localization information detector and to a telephone apparatus, so that the control unit can produce a voice message and then transmit it directly to the police and/or to a security organization by means of the telephone apparatus, when a plurality of sensors detect certain conditions such as the theft of the vehicle. The message may also be sent by the system to a person authorized to use the motor vehicle by means of a transmitter-receiver radio and a portable transceiver radio. Voice messages are contained in a first mass memory unit, localization information derived from a second mass memory unit, the message selected on the basis of satellite signals received and decoded by the system.

Abstract: This invention provides a new and improved emergency alarm system comprising a central control unit which is directly or indirectly connected to every other component of the emergency alarm system. The central control unit triggers and stops a visual alarm generator and an audio alarm generator, either simultaneously or separately, upon receiving signals from other components of the emergency alarm system. A portable control element and a signal-generating detection means are used for starting and stopping the central control unit, which in turn triggers a power supply means to cause a change, through the visual alarm generator, in color of a visible outdoor board and to commence, through the audio alarm generator, an alarm. A hidden sensing circuit can serve as the signal-generating detection means. The present invention also presents a method of application of said emergency alarm system.

Abstract: A portable alarm system is disclosed in which the alarm functions are contained within a portable enclosure, communication is maintained between the alarm system and wireless security contacts placed at points of entry, and the alarm is capable of initiating a telephone call to a security monitor state either by conventional hard-wired telephone lines within a building or by cellular transmission.

Abstract: The present invention is directed to a tamper protection device for protecting a telephone operated security alarm system. In particular, it protects a conventional security alarm system using telephone service lines from being disabled by an intruder before the alarm system has a chance to function. Telephone service lines are generally accessible from the exterior of the structure. The alarm system is protected by providing an service enclosure having a strong box and a dual conduit assembly to enclose the telephone service box and telephone service lines. The essential conduit assembly has inner and outer slotted concentric conduits to fully protect the service lines. The protection device includes sensors and switches to inform the security monitor before an intruder can disable the alarm system. A vibration sensor is activated when movements of the strong box and conduit occur and a signal is generated to announce the intruder.

Abstract: A multi-functional anti-theft supervising assembly which has an overall configuration of a telephone, includes an anti-theft controller, a video monitoring circuit, a dialogue controlling circuit and an infrared detecting circuit. A monitoring window, screen and a handset are provided as well. The anti-theft controller is connected with a plurality of signal detecting circuits externally and an infrared detecting circuit, accordingly, the signal of anti-theft, flameproof, gas-leakage can be transmitted to the hoist computer located at the control center for suitable reaction. The video controlling circuit and screen can be connected with the camera disposed at the front door. The dialogue circuit is connected as well. The dialogue circuit and said handset are interconnected with said video controlling circuit. A door lock release circuit is connected as well.

Abstract: A system is provided for automatically dialing and sending out a pre-recorded message in emergency situations to Police, Fire, or Ambulance departments at the push of a single button. The system has separated lighted buttons each for Police, Fire, or Ambulance, with an individual message for each emergency situation. The buttons are color coded and the international symbols for Fire, Police, and Ambulance are embossed on them respectively. The system is capable of storing phone numbers for each emergency service, and has the ability to record and play back a personalized message designed to describe the services needed and the location at which the service is need.

Abstract: An electronic security system includes a detector (S1, S2) for detecting unauthorized entry of a trespasser into a predetermined outdoor area (A1) or an indoor area (A2) and for generating a detection signal (d1 or d2) indicative of the entry of the trespasser. A mode setting circuit (2) is operated by an input keying operation to select one of an alert mode, in which any possible entry into the predetermined outdoor area (A1) or the indoor area (A2) is monitored, and a non-alert mode in which the possible entry into the predetermined outdoor area (A1) or the indoor area (A2) is not monitored. A control unit (4) preferentially transmits a warning through a telephone line (1) when it receives the detection signal (d1 or d2) generated during the alert mode, but transmits no warning during the non-alert mode. A warning device (12) acknowledges dispatch of the warning.

Abstract: A cellular and battery backup telecommunication system including an output jack connected to a conventional telephone line for hard wire communication of conventional telecommunication signals therebetween when the telephone line is in a proper operable state. Also included is an input jack connected to at least one telecommunication mechanism such an alarm system. A cellular transceiver is adapted to modulate conventional telecommunication signals into cellular signals upon the receipt thereof and further to the transmit the cellular signals via free space thereafter. Control circuitry is connected to the transceiver and further between the input jack and output jack. The control circuitry is adapted to communicate conventional telecommunication signals between the input jack and output jack when the telephone line is in an operable state and manually or automatically transmit conventional telecommunication signals from the input jack to the cellular upon the disconnection of the employed telephone line.

Abstract: A security device for the protection of cargo transport containers for use in the cargo transport industry. Once activated, the device notifies a security company that a break-in has taken place through the use of a cellular phone network. The security device utilizes a pair of cables exposed to the outside of the cargo transport container. In use, the cables are threaded through the door handles of the cargo transport container. Once the cables are joined on the outside of the cargo transport container, the device is armed. The security device becomes secure once a security code is entered by a user. Once the security code is entered and the cables are connected, the cargo doors may not be opened unless done by an authorized person. Should the pair of cables become disconnected or cut during transport of the container, the device will transmit a high frequency signal to a security company via a cellular telephone network.

Abstract: A control circuit for an automobile having an ignition switch with an ACC position and a start position, a starter motor, and an ignition coil which includes a pager circuit for receiving a digital signal from a telephone company resulting from a telephone call made thereto, a control code register connected with the pager circuit for storing the control codes from the pager circuit, a power circuit for supplying the electric power required by the control circuit, an alarm driving circuit, an activating circuit of an automobile door for receiving a signal from the control code register and activating the alarm driving circuit when the door is opened by an unauthorized person, a starter motor controlling circuit for turning off the starter motor when it receives an activating signal therefrom and when the ignition switch is in the ACC position and activating the alarm driving circuit when the ignition switch is in the start position, an ignition coil cut-off circuit for cutting off the ignition coil, and a cen

Abstract: An integrated telephone, intercom, security and control system for a building having a plurality of units, utilizing a plurality of telephone lines located throughout the building which are connected at one end to telecommunications equipment located in the units and throughout common areas of the building. A digital switching device is connected to the other end each of the telephone lines and arranged to connect at least one of the telephone lines to at least one of another of the telephone lines or to an outside telephone line at the option of a user of the telecommunications equipment. A plurality of sensors located in the units and throughout common areas of the building are arranged for generating signals in response to conditions therein, which are then transmitted to a plurality of control modules connected to the digital switching device by at least one of the telephone lines.

Abstract: A portable alarm system is disclosed in which the alarm functions are contained within a portable enclosure, communication is maintained between the enclosure and wireless security contacts placed at points of entry, and the alarm is capable of initiating a telephone call to a security monitor station either by conventional hard wired telephone lines within a building, or by cellular transmission, or via 800 MHz trunking.

Abstract: An alarm system for protecting premises comprises a fully integrated, alarm detecting cellular phone unit which is linked to various sensors in order to detect the sensor outputs. The cellular alarm unit includes, in addition to cellular phone functions, a formatter or processor for generating an emergency signal on detection of a sensor output, the emergency signal including information on the type of emergency detected. The unit is programmed to establish a cellular connection to a remote monitoring station. The connection is wireless at least from the premises to a local cell site. Once connection is established, the emergency signal is transmitted to the monitoring station via the local cell site.

Abstract: The present invention is directed to a local telephone line tamper protection device. In particular, it protects a conventional security alarm system using telephone lines from being disabled by an intruder before it has a chance to function. Telephone service lines are generally accessible from the exterior of the structure. The alarm system is protected by providing an service enclosure having a strong box and a conduit to enclose the telephone service box and service line. The protection device includes sensors and switches to inform the security monitor before an intruder can disable the alarm system. A vibration sensor is activated when movements of the strong box and conduit occur and a signal is generated to announce the intruder. The strong box has two access doors where the locked outside door must be opened to access the locked inside door. Each access door has a separate tamper switch means that generates a signal to also activate the alarm system.

Abstract: A remote-controlled anti-theft or theft-deterrent system and method, for motor vehicles, is disclosed which comprises a transmitting device, wherein the transmitting device is capable of transmitting data signals to at least two remote locations, a first receiving device for receiving the data signals transmitted from the transmitting device at a first of the at least two remote locations, a second receiving device for receiving the data signals transmitted from the transmitting device at a second of the at least two remote locations, a first control device associated with the first receiving device for processing the data representative of the data signals, wherein the first control device processes the data representative of the data signals and issues one of a disable signal and a re-enable signal to one of a vehicle's ignition system, a vehicle's fuel pump system and a vehicle's auxiliary equipment system one of instantaneously and after a time delay period, and a second control device associated with the

Abstract: Described is an automatic paging system that will alert a paging service subscriber to the occurrence of specific events at a remote location using a standard home type answering machine and/or a standard alarm system. The paging system works in conjunction with existing paging subscription services and answering machines presently available. The system detects if a valid message has been left on the answering machine or if an alarm has been tripped, then dials a number that the user programs into the system that corresponds to the paging service telephone number, then waits for an acknowledgment tone from the paging service and dials a distinct code that corresponds to what has occurred at the remote location. The system will forward a telephone number to the paging service subscriber, if such a number has been entered into the answering machine by a caller.

Abstract: One or more of a plurality of alarm conditions can be detected by respective alarm detectors. The detected alarm conditions can be reported to one or more respective monitoring stations. The system includes circuitry for controlling the consumption of power.

Abstract: An interface unit adapts an existing alarm system, e.g., an existing automobile alarm system, so that it selectively provides additional alarm features not previously available. Such features are made available, at least in part, through use of the components of the existing alarm system. Thus, there is no need to remove the existing alarm system, or (in one embodiment) to even cut or relocate any of the wires used with the existing alarm system. All that is required is to install the interface unit and couple it in an appropriate manner to the existing system. The features made available through the interface unit selectively include voice messages that are triggered: whenever the alarm system senses a violation event, to indicate the arming or disarming of the system, or to report to the owner the violation events that have occurred since the system was last armed.

Abstract: Capacitive proximity sensors are disclosed that can be fabricated in different shapes, sizes and materials used in a wide variety of applications. Each such sensor includes a sensing electrode and a guard electrode. The sensor electrode and guard electrode can be parallel conductors separated by an insulating layer, such as a double-sided circuit board shaped to suit the application. One such sensor is transparent for use in conjunction with an optical bar-code scanner. Another sensor is annular in shape for use in conjunction with a telephone transmitter. The sensing electrode and the guard electrode are driven in unison by an RF signal. The proximity of an object to the sensor is observed by detecting changes in the RF current flowing through the sensing electrode caused by the proximity of an object to the sensing electrode.

Abstract: A security system for detecting and signalling the presence of abnormal security or hazardous conditions, such as unauthorized entry, glass breakage, fire, smoke, high water level, in individual units, such as a boat, a recreational vehicle, an automobile, which are located or stored in a given security area.. The security system comprises sensor units which, when actuated, transmit coded signals through the atmosphere which identifies each sensor unit and the individual unit on which it is located. A receiver on the individual unit recognizes only the coded signals from sensor units which are on the same individual unit as the receiver. A coded output signal is provided to a slave transmitter on the individual unit which identifies the particular sensor unit which was actuated. The slave transmitter provides a coded transmission signal to a local security station which identifies the particular sensor unit which was actuated and the individual unit where the actuated sensor unit resides.

Abstract: A battery-powered infrared sensor security system capable of operating on a single set of batteries for a minimum of one year. The system is connected to a telephone line and employs a bidirectional dual-tone multiple frequency (DTMF) tone generator/receiver to allow communication to and from a remote location. The system status may be checked from the remote location and certain system parameters may be varied from the remote location. The system uses a Fresnel lens arrangement and a pair of infrared sensors to provide a substantially uniform field of coverage of 180.degree.. The system also uses real time digital analysis of the output signals from the infrared sensors. The digital analysis uses time sequence analysis of the output signals, performs variance measurements between the current measurement of the infrared sensor signals and the stored time sequence, coherence measurements between the two sensors, and can compare measured amplitude spectra to predefined signature spectra entered by the user.

Abstract: A telephone handset is described having an array of personal service buttons thereon employed by the user to carry out microprocessor controlled communication with a personal services facility. In an access mode of operation, by depressing one button, the handset will carry out dialing followed by an automatic protocol interaction and a subsequent transmission of account code specific to the user. The program then enters an interactive mode wherein the pushbuttons of the handset can be used for A VRS activity. Programming of the handset can be carried out by the dealer or at the user facility itself through the utilization of a small simple keypad which is coupled to the handset for that purpose. When combined with a security console, a priority protocol is established wherein security related signals are given precedence over handset activity.

Abstract: A security system comprises a signal transmitter (1) with a first sensor (2) for conveying status information to a receiver (3) via a telecommunication channel (4), the signal transmitter being preferably built into a telephone set and the telecommunication channel preferably comprising a subscriber line in a regular telephone network. A second sensor having a higher sensitivity than the first sensor, is arranged to be influenced by the same alarm situation as the first sensor to transmit alarm information to the receiver via the telecommunication channel, and a restoring circuit (6) comprising time measuring components (7, 8) with an activation input (9) connected to the second sensor is, within a time slot of a predetermined length arranged for the transmittal of the status information and the alarm information, arranged to always transmit restoring information regarding the alarm information to the receiver.

Abstract: Supervisory alarm transmission and remote alarm receipt devices which, when an emergency event such as a burglar, a fire or the like that is being monitored by a supervisory alarm device takes place, the emergency event is transmitted through telephone lines in order for a remote supervisor to be able to directly watch a spot situation through a monitor, consisting of a supervisory alarm transmission device which comprises an alarm processing control section, a video data processing section and a data transmitting section, and a remote alarm receipt device which comprises a data receipt section, a receipt processing control section and a data processing section.

Abstract: A mobile radio system has an upward and downward control channel for controlling a call-out transmitted from a mobile terminal station, independently from a communication channel. The system detects an abnormal state of an automobile equipped in the mobile terminal station, and automatically transmits a call-out signal through the upward control channel to said base station when the abnormal state is detected. The abnormal state occurs when a door is opened, for example. It receives a response signal via the downward control channel from a base station, the response signal corresponding to the call-out signal of the terminal station, and produces an alarm sound when identification signal ID of the terminal station is detected from the response signal. Thus, the abnormal state of the automobile can be indicated by the alarm sound outputted from the portable receiver, thereby preventing the automobile from theft.

Abstract: An interfacing system for integrating a wide variety of cellular communication systems with most vehicle security systems. The system includes a controller and an interfacing arrangement for matching the cellular telephone to the controller. The interfacing arrangement includes a library, stored in memory, having a plurality of unique translation tables corresponding to the protocols of a plurality of unique cellular communication systems. The interfacing arrangement further includes an initializing capability for selecting an operating protocol for the interfacing system from the library which is compatible with the protocol of the cellular communication system. Hardware and software are included for interfacing the vehicle security to the controller and for interfacing the controller to the vehicle. In a specific embodiment, the selection of cellular telephone type or make is made from the keypad of the cellular telephone.

Abstract: A channel unit interface circuit for interconnecting a two-wire, bidirectional signal transmitting path and a four-wire signal transmitting path in a communication system includes a tip terminal transconductance amplifier driver, a ring terminal transconductance amplifier driver, a voice sense amplifier, a balance network, A/D signal processing circuit, D/A signal processing circuit, filter network, a voice codec/PCM filter, a channel logic circuit, and a DC-to-DC converter. The tip terminal transconductance driver is formed of a first switching operational amplifier, and the ring terminal transconductance driver is formed of a second switching operational amplifier. Each of the first and second switching operational amplifiers is formed of a low voltage transconductance amplifier, high voltage comparator, a filter network, and a feed forward compensation amplifier.

Abstract: A security system which includes a master unit for communication with a central control station by telephone and provides for a plurality of remote detectors located in different zones of a secured area to be selectively wired. The remote detectors communicate through the main power supply with a master unit which is powered by the mains. Microphones in the remote detectors can be selectively operated through the master unit as activated by the central control station to listen in to different zones to permit for identification of a security breach in different zones. A high-volume output mode speaker phone is provided to the master unit. Feedback circuitry generates audible signals when the system is armed or disarmed remotely. Separate activation of interior and perimeter detectors can be effected.

Abstract: A method of preventing auto theft utilizes an anti-theft system and a mobile telephone system. When abnormality indicative possible auto theft occurs, the anti-theft system transmits that fact to a remote control unit, which thereby sounds an alarm. The anti-theft system at the same time turns on the power of the mobile telepone system so as to make it ready for being capable of external calls, so that the driver who is remote from the car can ascertain the state of the anti-theft system by calling the mobile telephone system before running to the car.

Abstract: A call arrival notification method for a motor vehicle provided with a telephone system and a theft-preventing system allows the telephone system to be set to the call arrival notification mode. When a call arrives in the call arrival notification mode, the telephone system signals the call arrival to the theft-preventing system. The theft-preventing system transmits indication of the call arrival to a remote control unit which turns on/off the operation of the theft-preventing system, and the remote control unit provides a call arrival notification by a recognizable sound and display.

Abstract: The identification of the status of an anti-theft system is made by using a motor vehicle telephone system and a system for preventing vehicles from thefts. First, a time is set in order to turn the telephone system to the power-on state. A time period for which the power-on state continues is also set. The telephone system is turned on at the pre-set power-on time, and the status of one or more operating modes of the anti-theft system is checked only when an incoming call arrives during the power-on state and when a predetermined ID code has been entered. With this arrangement, identification can be available from a place away from a vehicle to determine whether the vehicle is at the normal state or not. In addition, the telephone system may be set to the power-on state only at the predetermined time only for a pre-determined period of time. This additional feature reduces power consumption of batteries.

Abstract: An integrated cargo transportation security system is provided for a fleet of enclosed cargo transportation containers. Each container includes a subsystem including a door sensor for sensing access door opening and closure, a module unit including a connecting frame for a removable module and cabling leading to the door sensor. The identically appearing removable modules are configurable as active and passive. Each locks into the unit. The system includes a central data collection and processing facility for processing cargo trip data collected by at least one active module during a cargo trip of the container into a roadmap indicating travel route of the container during the trip and the time and location of significant event such as unauthorized opening of the cargo door.

Abstract: A portable intrusion detection, monitoring and alarm system is housed in a portable carrying case in the configuration of a briefcase with handle for convenient portability and inconspicuous placement at a desired location near a space to be monitored. Intrusion detectors are removed from the carrying case and placed in the space to be monitored. The intrusion detectors may include infrared motion sensors and radio transmitters for transmitting detection signals to a radio receiver in the carrying case. An electronic controller receives the detection signals from the radio receiver and delivers actuating data signals to a digital communicator and digital dialer with a telephone line output. The digital communicator captures a telephone line with dialing signals and sends further coded signals corresponding to different monitored spaces and intrusion detectors from which detection signals are received.

Abstract: A backup security system for the telephone company lines of a protected home located in a neighborhood in which all the homes have a.c. supply lines connected to a common power transformer. The protected home, in addition to being provided with a conventional security system, is provided with a line-cut monitor, a PWM transmitter, and a conflict avoidance circuit. When the line-cut monitor senses that the telephone company lines for the protected home have been cut by an intruder, it provided a signal for gating an alarm signal from the conventional security system to the PWM transmitter which impresses the alarm signal as high frequency signals on the a.c. supply lines in the neighborhood. A neighboring home in the neighborhood is provided with a PWM receiver, telephone company lines and an automatic telelphone communicator. The PWM receiver in the neighboring home responds to the high frequency signals on the a.c.

Abstract: An integrated cargo transportation security system is provided for a fleet of enclosed cargo transportation containers. Each container includes a subsystem including a door sensor for sensing access door opening and closure, a module unit including a connecting frame for a removable module and cabling leading to the door sensor. The identically appearing removable modules are of two types: active and passive. Each locks into the unit. The system includes a central data collection and processing facility for processing cargo trip data collected by at least one active module during a cargo trip of the container into a roadmap indicating travel route of the container during the trip and the time and location of significant events such as unauthorized opening of the cargo door.

Abstract: The invention concerns a remote security and operating system. A user can dial remote systems for spot checks of system sensors, or different systems can dial the user on fault detection. Once the user is connected with the system, the user enters a code and command signals. For instance, a set of normally open sensor switches can be shut down, while a set of normally closed switches are monitored. Each system identifies itself to the user by a series of tonal bursts. The user, by pressing a telephone push-botton, can enter a new telephone number the system will call on fault detection. A set of remote microphones can be activated, their audio signals being fed to the user, through nulling amplifiers which the system would otherwise try to interpret. A tonal OK circuit signal is sent to the user upon testing if the system is working, followed by a different tone if a selected sensor switch detects a fault.

Abstract: A user friendly security apparatus and system for use in the home or small business. A logic architecture is provided which permits the monitoring of not only intrusion but also fire, special emergencies, low battery conditions or flooding utility power failure and the like. Positions to be secured with the system are monitored by small R. F. transmitters of restricted range as well as by hand held transmitters which are used for emergency conditions and the like. A transponder is provided for mounting within the home or business in the form of a console which responds to transmitted signals as well as to a silent hold-up switch fixed thereto to carry out automatic telephone dialing to a central security monitoring service. The transponder operates in an armed or idle operational mode and includes a test feature for use in the idle mode as well as a reset feature for that mode.

Abstract: A robbery-repelling alarm system includes a shouting alarm which will produce a human warning speech prerecorded in a first cassette tape for efficiently repelling intruders; a car lock which will be actuated by intruder to ground the current of the engine ignition coil to prevent the car starting; and a telephone dialing alarm including both a pulse dialer and a prerecorded message alarm operated by a second cassette tape for easier operation and minor cost.

Abstract: A plurality of selling machines is provided with coding devices assigned to each machine and connected via a telephone network to a central switching station and via subscriber lines to individual subscriber stations. Each machine is provided with sensors of predetermined operational conditions and/or interferences in the machine, the sensors delivering an output signal which is connected to the coding device. In the coding device the signal is coded according to the particular operational condition and/or interference and combined with a primary recognition signal. The combined coded signal is transmitted to the switching station where the recognition signal is identified and the remaining signal is switched over and transmitted to the subscriber station. In the subscriber station, the signal is processed in a computer and the output message is displayed on a display board and recorded in a printer.