Matches 1 - 44 out of 44


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8749348 Sensor device with persistent low power beacon  
One disclosed method involves providing a first device comprising a sensor configured to sense a stimulus experienced by the first device, a controller configured to process data received from the...
8630386 Clock recovery in a battery powered device  
A battery powered device is able to maintain a clock value when the battery is removed for a short period. During a first time period, while the battery is in the device, clock pulses derived from...
8264328 Sensor device with persistent low power beacon  
One disclosed method involves providing a first device comprising a sensor configured to sense a stimulus experienced by the first device, a controller configured to process data received from the...
6853698 Ripple counter circuits and methods providing improved self-testing functionality  
A ripple counter circuit supports two modes of operation, a user mode and a test mode. In the user mode, the circuit functions as a standard ripple counter, counting in response to first edges...
5487096 Integrated circuit with real time, elapsed time, and cycle counter clocks  
An integrated circuit which includes not only a real time clock, but also an elapsed time counter, and a third counter. The elapsed time counter measures the total number of seconds during which a...
5389921 Parking lot apparatus and method  
A parking lot traffic control and fee collection system is disclosed for use in stadium type parking lots. A vehicle counter installed in a portable traffic pylon is provided at the entry point...
5389863 Rotor movement sensing system  
A rotor movement sensing system in a postage meter permits detection of the printing of postage even if power is lost during the printing cycle. A sensor senses a magnet on a disk when the rotor...
5131017 Incremental position measuring system  
An evaluation device with an absolute value counter is provided in an incremental position measuring system, which determines the absolute position even in case of loss of the main power supply....
4987363 Electric energy meter with power outage recovery circuit  
A time registering electric energy meter for measuring usage of an AC energy quantity includes primary and secondary DC power supplies and a microprocessor, having a realtime clock maintained by...
4968899 Clock signal switching device of an IC Card  
When an IC card is attached to a terminal unit, a counter counts pulses of an external clock signal and a switching circuit outputs the external clock signal to an internal circuit in place of an...
4887281 Recreation vehicle distance measuring device  
A distance measuring device that can be easily retrofit to a recreational vehicle includes a sensor unit that easily attaches to the wheel of the vehicle, a counter unit 12 for processing the...
4850000 Gated shift register  
A gated shift register includes a first set of 16 storage devices and a second set of 16 storage devices with interconnection circuitry for configuring the first set of 16 storage devices as a 16...
4807265 Recreation vehicle distance measuring device  
A distance measuring device that can be easily retrofit to a recreational vehicle includes a sensor unit that easily attaches to the wheel of the vehicle, a counter unit (12) for processing the...
4768210 Method and apparatus for failsafe storage and reading of a digital counter in case of power interruption  
A method for the non-volatile storage of the counter reading of a digital counter including storage locations for receiving counter readings and state information of a counting cycle, includes...
4612657 Device for detecting momentary cutoff of AC power source  
A device for detecting a momentary cutoff of an AC power source which is used with a data processing apparatus or the like. The device determines that a momentary cutoff has occurred in the AC...
4531064 Electronic thermostat with repetitive operation cycle  
An electronic multiple-setback thermostat for residential and commercial use includes an internal clock having a week-long cycle. The thermostat is programmed by the operator, usually manually...
4512029 Non-volatile decade counter using Johnson code or equivalent  
This invention concerns counters.More specifically, it relates to a non-volatile counting decade, comprising five flipflops, the outputs of which represent the decimal contents of the decade in...
4334149 Tape recorder with display showing tape travel direction  
In the disclosed tape recorder, wherein separate sources of electric power actuate the tape drive and energize a display for showing the running direction of a tape, the display showing the...
4309623 Power source device for electronic counting system  
A power source device for electronic counting systems comprising an a.c. power source, a first d.c. power circuit connected to the a.c. power source for supplying an object detecting device with a...
4303850 Real time clock using computer and separate counting means  
Apparatus for maintaining a real time clock normally incremented by a CPU when power is provided thereto and maintained by a separate counting means when power is removed from the CPU, the...
4253015 Electronic postage meter having an accounting system independent of power failure  
A postage meter has a printing mechanism positioned on a drum, and a driving gear for rotating the drum to imprint postage on a mailpiece. The driving gear is adapted to be externally driven. The...
4245150 Power line disturbance detector circuit  
A power line disturbance (PLD) detector circuit includes a digital counter which is driven by pulses provided by a clock in an associated data processing system. The PLD detector circuit includes...
4229647 Counter system for incremental measuring instrument  
An improved electronic counter for use with an incremental measuring device is disclosed. The counter includes two or more individual counters, a display unit, and a switch for selectively...
4229646 Electronic counter for incremental measuring device  
An improved counter for use with an incremental measuring device is disclosed which includes an up-down counter, a plurality of memory units, a computer, and means for designating any of the...
4228346 Self-calibrating electric clock circuit  
A clock circuit designed to keep time based upon a known frequency of an alternating current power supply is provided with a d.c. power backup system to operate the clock circuit during periods of...
4224506 Electronic counter with non-volatile memory  
There is disclosed a volatile electronic counter wherein the count is retained over power off periods. This is accomplished by the use of a non-volatile memory with means for rapidly writing...
4168531 Real-time clock having programmable time initialization and read-out  
A group of selectably-loadable counters is used to derive timekeeping information, for use in an energy load control system, by counting the accurate pulses obtained from a crystal-controlled...
4133044 Failure-resistant pseudo-nonvolatile memory  
Disclosed is a plurality of parallel resistive-capacitive clamping circuits ndividually coupling the bit "input" and bit "output" terminals of a multi-bit, serial/parallel (S/P),...
4093871 Correction circuit  
A correction circuit for correcting the frequency of the output pulses produced by a gas flowmeter in dependence on the temperature of the gas comprises a control input for receiving a voltage...
4089058 Real time data processing and display system for non-linear transducers  
A system for linearizing, processing and displaying data received from a non-linear transducer. The system includes a keyboard for entering coefficients which characterize the transducer to adjust...
4085311 Memory device with error prevention of data during power failure  
Memory device including an input circuit adapted to provide signal pulses to be applied to an IC counter so that they are counted by the counter. Auxiliary power source is provided to supply the...
4064501 Control system  
By this invention a system for controlling the servicing of customers arriving in a vehicle at a service area is provided, in which system the arrival of the vehicle, the supplying of the services...
4049951 Data retention apparatus  
Apparatus for retaining the data held in a directional counter in the event of the voltage level supplied to the counter falling below a predetermined level comprises a directional counter means...
4031363 Display apparatus for automotive vehicles  
Apparatus capable normally of presentation of time in hours and minutes and upon command of other functions, such as miles before service is required and days before service is required. The...
4007419 Digital bicycle speedometer-odometer  
A combination speedometer/odometer apparatus for displaying either the speed of a vehicle or the distance a vehicle has traveled, and including a speed pick-up attached to the vehicle for...
4005409 Multiple mode input analog controller having standby power supply and absence-of-input sensing  
A controller produces an analog output signal which can be changed in accordance with digital input instruction signals, such as pulse coded binary signals or duration coded binary signals. A...
4003030 Electronic cash register  
An electronic cash register comprising: a power source for energization of said electronic cash register, a power recovery detecting circuit operatively coupled to said power source for detecting...
3988575 Magnetic-doughnut memorizing device for counting system  
Device for memorizing the position of a counting system in case of failure or cut-off in the supply current characterized by the combination of a magnetic doughnut with each output of said...
3893175 Recorder for monitoring copiers  
An automatic recorder for copiers adapted to monitor certain selected functions and components of the copier, and, in response to certain occurrences within the copier and/or the recorder, to...
3890490 Digital data totalizer system  
A digital data system comprising one or more counterencoders and a decoder-display unit monitors remotely occurring events from a central location. Switch closures, in proportion to the frequency...
3879642 Memorizer for counting system  
This device for memorizing a counting system in case of failure in the supply mains utilizes magnetic-lock two-step electromagnetic relays of reduced over-all dimensions, the transfer of the...
3860914 DIGITAL DATA RECORDER  
A digital data recorder is described having inherent circuitry characteristics that will re-establish the recorded data state previously established just prior to a power failure upon the return...
3755806 CALCULATOR DISPLAY CIRCUIT  
A display circuit for use in an electronic calculator which includes a computing circuit for receiving and manipulating digital datum, the computing circuit including first means for repetitively...
3664117 NON-TIME INDICATING NUMBER CORRECTION CIRCUIT  
When power is applied to a digital clock, the counters therein can assume forbidden states and non-time indicating numbers are generated. This problem is eliminated by a gate circuit responsive to...

Matches 1 - 44 out of 44