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Matches 51 - 100 out of 117 < 1 2 3 >


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4616223 System of identifying local stations by a central interrogating station  
A station identification system comprising a central interrogating station (10) and M local stations (100, 200), etc. arranged in parallel with each other along a transmission bus (20) which...
4584719 Fiber optic workstation datalink interface  
Workstations may advantageously be interconnected in a cluster arrangement wherein multiple "slave" stations utilize the database which exists in a "master" unit. The cluster interface has been...
4582279 Modulation system for railway track circuits  
A modulation system for railway track circuits in which a modulated signal is applied to a section of track for the purpose of detecting the presence or absence of a train on the section. Such...
4580295 System for monitoring optical data bus transmissions  
A circuit (2) used to monitor an electro-optic transmitter (1) associated with an optical data bus (17) senses voltage levels VA applied to an optical transducer (15). The voltage levels VA are...
4555702 Remote control signal reproducing circuit  
A remote control signal reproducing circuit for use in a remotely-controlled receiver which receives a modulated transmission signal subjected to a pulse modulation, reproduces an original remote...
4499462 Circuit arrangement for the electronic code locking of locks  
The circuit arrangement has a key for the serial feeding in of the code signals and is equipped with electronic arrangements for the storage of the code and for the processing of the signals. In...
4498198 Binary signal decoding apparatus and method  
An apparatus and method is provided for decoding a transmitted comma free coded signal, having a plurality of bits and two message frequencies, and suitable for application in controlling the...
4465998 Burglar-proof barrier  
Burglar-proof barrier providing protection against intrusions, comprising means for the transmission of signals modulated and coded by pulses in a predetermined code, means for the reception of the...
4463345 Seed flow monitor  
A seed flow monitor for use with a plurality of seed flow sensors which are located in individual tubes of a field seeder. In the event of detection of reduction of seed flow in any seed tube below...
4453156 Load control receiver and method of operation  
Method for detecting the presence or absence of an audio-frequency signal (VT) superimposed on a power supply network, the audio-frequency signal (VT) having a known frequency (fT) and an amplitude...
4430652 Remote control system  
A remote control system capable of utilizing manually encoded signals is disclosed. The system is particularly suitable for use in the logging industry because it is capable of utilizing...
4384288 Portable radio frequency emitting identifier  
An automatic identification system wherein a portable identifier, preferably shaped like a credit card, incorporates an oscillator and encoder so as to generate a programmable pulse...
4344076 Feedback sensor for remote receiver in a power transmission system  
A feedback sensor which detects the reception of pulses and the response thereto by the remote receivers of a load management system associated with a power transmission system. The receivers are...
4320881 Fail-safe decoder for digital track circuits  
A selected unique digital comma-free code word is transmitted through track section rails from one end and, when received at the other end, is applied serially to a shift register which supplies a...
4310802 Logical waveform generator  
Input logical data is sequentially divided by a data dividing circuit for each time slot into n data trains, of which each data block has an n time slot length. A clock signal which can be...
4251812 Remote control system  
A remote control apparatus is constituted by a command encoding device and a command decoding device. In the command encoding device, a timing pulse generator indicates the beginning and end of a...
4232298 Remotely-controllable relays and filters therefor  
A remotely-controllable relay which is controlled by 175 Hz ripple voltage superimposed on the mains supply voltage in an electric-power distribution network contains an oscillator generating a...
4186345 Remote control system  
A remote control system for selectively controlling a plurality of functions includes a receiver having a decoding circuit for decoding a command signal having alternating mark periods and space...
4171468 Method and apparatus for remote control  
A method is disclosed for remote control wherein coded commands are transmitted from a transmitter to a receiver. A respective time interval between a first energy impulse starting the transmission...
4167004 Apparatus for detecting plural repetitive signals  
Repetitive defect signals are produced, for example, by bar or rod inspection equipment whenever any one of plural roll sets in a rolling mill develops a roll crack. Defect signal repetitive rate...
4091328 Remote control radio system  
A system for individually adjusting a plurality of remotely located servo units according to the position of a manual control for each servo unit by broadcasting a carrier wave that is switched on...
4041458 Arrangement for carrying out random selection among a plurality of selectable devices in a telecommunication system  
Arrangement in a telecommunication system for random choice of one of a number of selectable devices, the condition of which is marked by the condition of a marking wire connected to the respective...
4034300 Circuit arrangement for evaluating received oscillations of a predetermined frequency  
A circuit arrangement for evaluating a received control signal of the type including a first signal of a first predetermined frequency and of a time duration which represents information, and a...
4032848 Receiver for a coded electronic security system  
The present invention pertains to a receiver for a coded electronic security system which includes a plurality of independent transmitting devices each of which generates a pulse coded RF signal...
4002984 Circuit arrangement for determining the time duration of received oscillations  
A circuit arrangement for evaluating received oscillations whose maximum possible time duration is predetermined, by determining the time duration of the oscillations. Pulses of a constant...
3987414 Digital remote control for electronic signal receivers  
A digital remote control system provides substantially simultaneous actuation of remote functions. Repetitive transmissions of a plurality of remote control instructions and an identifier pattern...
3946378 Dynamic digital pulse display  
An arrangement for the dynamic direct display of pulses in the nanosecond range operates without oscilloscopes or other special display apparatus. To display pulse timing or amplitude...
3943491 Ultrasonic digital receiver  
A receiver of ultrasonic pulses having a known pulse width and at a known spacing includes a gate which is normally conditioned to accept the ultrasonic pulses. When the first pulse is received,...
3906366 Remote control system  
A remote control system is disclosed which may gradually control a device or vary a control signal through a non-mechanical oscillation transmission system. The transmitter comprises a...
3888181 Munition control system  
1. A munition safing, arming and firing system comprising means for transting a code consisting of pulses of differing frequencies, means for receiving said code, means for segregating the received...
3852718 APPARATUS FOR INTERPRETING NUMERICALLY CODED PULSE GROUPINGS IN A LINE  
An electrical supervisory signaling system employing a plurality of McCulloh-type pulse transmitters which are operable selectively to transmit over a line one or more like groups, or "rounds," of...
3811112 CONTROL COMMAND SECURITY IN BINARY REMOTE CONTROL  
In a remote control system wherein control commands are sent as telegrams, each containing a fixed number of binary bits, transmission of each telegram is required to span a time interval divisible...
3760422 REMOTE CONTROL SYSTEM FOR LOCKING DEVICE  
A remote control system for automatically controlling actuation of a device, such as a lock, in response to the proximity of the operator to the device. A portable transmitter providing a coded...
3718907 SCANNER CIRCUIT  
The scanner circuit includes a counter that provides sequential scanning pulses. In response to a current pulse, the counter circuit is stopped. The counter is enabled to start a preset number of...
3715579 RATE DECODER WITH ACTIVE FILTERS  
The decoding system provides a control signal in response to an input of one of a plurality of selected code rates. The improvement includes a band-pass filtering means for each code rate which is...
3699521 DECODING SYSTEM HAVING PLURAL FREQUENCY CHANNELS  
A vehicle control decoding system has been provided having a plurality of filters tuned to detect code rates for selectively actuating output relays. The decoding system includes first checking...
3686635 INTEGRATED CIRCUIT DECODER RESPONSIVER TO TWO SEQUENTIAL TONES, WITH GROUP CALL PROVISIONS  
Decoder circuit for use with two tone sequential calling signal, which responds only to two tones of predetermined frequencies, amplitudes, durations and time spacing. The circuit is constructed in...
3651469 BINARY TOUCH-TUNE SYSTEM WITH MEMORY  
A remote control system employing a binary memory matrix is disclosed. A binary control code word is generated by selective application of clock pulses to a step-controlled code generating means....
3601706 PULSE INTERVAL DECODER  
A system for determining the average length of intervals between pulses in a finite train, including a pulse counter, two alternately operating interval timing devices, an arithmetic divider, and...
3579190 AUTOMATIC ALARM DETECTOR  
A system is provided for unattended monitoring of international distress signals. The system employs an RF section which responds to all the signals in the frequency range of interest. The RF...
3573734 SOLID STATE TOUCH-TUNE SYSTEM  
Remote tuning system for a plurality of electronic services employs a common tuning control, function selector, and indicator. Tuning is accomplished by selectively applying pulses of variable...
3496546 PULSE DECODING SYSTEM HAVING TAPPED DELAY LINE  
3483518 CODED SUPERVISORY CONTROL SYSTEM  
3466608 DIGITAL-CODE-EXTRACTOR SYSTEM  
3462740 PRECISION PULSE DECODER  
3383659 Automatically responding circuit for providing different output signals as the inputsignal changes  
3327304 Command generator for remote control systems  
3316488 Dual modulated remote control transmitter  
3287701 Transistorized electronic decoder responsive to plural frequencies  
3274552 Adaptive missile control system  
Matches 51 - 100 out of 117 < 1 2 3 >