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| Number | Title | Issue Date |
| 5572199 | Absolute signal detecting method and absolute encoder An absolute signal detecting method and an absolute encoder according to the present invention load a n-bit positional signal (3) to a counting circuit (12) through rotating a code plate (1) at power ON, and can obtain an absolute encoder signal (12A) aft... | 11/05/1996 |
| 5570087 | Motor vehicle performance monitor and method A system and method are disclosed for monitoring the performance of a motor vehicle. The vehicle's instantaneous accelerations in at least two directions are continually sensed and stored as coded signals in a computer memory. Performance variables of the... | 10/29/1996 |
| 5541589 | Power meter data acquisition and control system Each of a plurality of utility clients has a meter at the client location. A reader, such as an infrared emitter and optical photosensor arrangement, obtains consumption information from the meter and provides the information to a microprocessor. The micr... | 07/30/1996 |
| 5519388 | Method and apparatus for active temperature compensation in a radiowave transmitter A method and apparatus for producing a temperature stabilized frequency from a signal generator in a monitoring station is described. The signal generator monitors the voltage response of an RC circuit where the resistive portion is formed by a thermistor... | 05/21/1996 |
| 5515041 | Composite shaft monitoring system A smart structure comprising a rotatable shaft, and a sensor integrated with the shaft, a resonant detector circuit integrated with the structure for detecting a sensor output, and an external exciter circuit; the detector circuit having first coil means ... | 05/07/1996 |
| 5510779 | Error compensating instrument system with digital communications An instrument system provides compensation for signal processing errors by processing both sensor signals and reference signals in a common signal processor. Reference signals may be provided which enable zero compensation, gain compensation, or both. The... | 04/23/1996 |
| 5506577 | Synchronizer for pulse code modulation telemetry The invention is a method of synchronizing a digital telemetry receiver to a digital telemetry transmitter. The method includes the steps of initializing the sampling period of the receiver, measuring the detection time of each signal event detected by th... | 04/09/1996 |
| 5476488 | Telemetry system power control for implantable medical devices During the telemetering of telemetry signals between an implantable medical device and an external programmer, the transmitter power of the implantable device is dynamically adjusted. The programmer measures the strength of the telemetry signals transmitt... | 12/19/1995 |
| 5420799 | Circuit breaker - associated backpack unit for lower-link communication with a PC computer monitoring system and energy monitoring system using a plurality of such backpack units A PC computer monitors the energy consumed at a plurality of local stations placed behind the electrical meter of the utility company for individual billing of the local users, a bidirectional communication line being used between the PC computer and the ... | 05/30/1995 |
| 5353019 | Process for monitoring the output signals from a transmitting device By rectifying, comparing and X-OR gating two signals (A,B) from a transmitting device (G) that are to be sinusoidal and have a corresponding rotational frequency, of the same amplitude, and ideally offset from one another electrically by 90°, a binary si... | 10/04/1994 |
| 5278552 | Indicator control circuit An indicator control circuit includes a signal conversion circuit for converting an analog signal corresponding to a predetermined physical quantity into first digital data and a digital filter circuit for generating second digital data from the first dig... | 01/11/1994 |
| 5278551 | Meter reading system A meter at each user's house has a bar-coded user number shown thereon, and has a display section for displaying a reading. A data input terminal unit has a bar code reader for reading the user number and a keyboard for manually inputting a present readin... | 01/11/1994 |
| 5191327 | Programmable remote transducer with filtering, differentiation, integration, and amplification A mechanical-to-electrical transducer arrangement wherein a combination of signal preamplifier and programmable analog signal processing circuitry is disposed immediately adjacent the transducer's sensor cell where low losses a low noise coupling into the... | 03/02/1993 |
| 5168273 | Sequential analog/digital data multiplexing system and method An analog and digital data-gathering system where the data gathering remote device or sequencer units are serially connected such that initially only the device closest to a control unit is powered and other data-gathering devices in the system are sequen... | 12/01/1992 |
| 4888706 | Fluid distribution to multiple users through distributed intelligence sub-centers A process and system for fluid distribution from a principal intelligence and fluid distribution center to multiple users through a plurality of distributed intelligence sub-centers. Each distributed intelligence sub-center has intelligence computing, ana... | 12/19/1989 |
| 4812805 | System for interconnecting parking meters having a memory The invention relates to a system for interconnecting memory slot machines, for example parking meters or ticket vending machines. Each slot machine (B1, B2, . . . ) includes a circuit (C1, C2, . . . ) which rec... | 03/14/1989 |
| 4787054 | Interdial compensation technique for angular position detectors A transducer formed of one or more electrode arrays is positioned in confronting relation and parallel to the plane of rotation of one or more rotating members. A binary interdial compensation value is generated to correct for errors in the mechanical mis... | 11/22/1988 |
| 4783659 | Analog transducer circuit with digital control A two wire transmitter controls loop current as a function of a sensed parameter such as pressure or temperature using analog sensing and signal processing circuitry. Corrections, such as for zero, span, and linearity are provided in the form of analog co... | 11/08/1988 |
| 4568934 | Computer controlled energy monitoring system Apparatus for monitoring and displaying energy consumption which comprises at least one communications channel, at least one group of remote stations each comprising a plurality of information channels and connected to a respective communication channel, ... | 02/04/1986 |
| 4463354 | Apparatus for communicating utility usage related information from a utility usage location to a portable utility usage registering device Method and apparatus are disclosed for communicating utility usage information from a utility usage location to a portable utility usage registering device (22). A utility usage detection circuit (10) is provided at the utility usage location. The circuit... | 07/31/1984 |
| 4399510 | System for monitoring utility usage Electronic circuitry monitors the electrical energy consumption of a system and displays the current cost of the energy usage. The projected monthly billing cost is calculated at the current rate of consumption, and an alarm signal and control output are ... | 08/16/1983 |
| 4398194 | Differential pressure sensing apparatus A differential pressure transducer is a body with a pair of opposed sensing chambers bounded by diaphragms and associated surfaces of the body. The surfaces have conducting layers and form capacitors with the metal diaphragms. The chambers are connected t... | 08/09/1983 |
| 4233590 | Supplemental energy register A supplemental energy register in which successive increments of consumed electrical energy are detected at a kilowatthour meter, and are translated into electrical pulse signals. Digital calculation and display logic is operated by the pulses, either dir... | 11/11/1980 |
| 4207557 | User electric energy consumption apparatus A supplemental energy register in which successive increments of consumed electrical energy are detected at a kilowatthour meter, and are translated into electrical pulse signals. Digital calculation and display logic is operated by the pulses, either dir... | 06/10/1980 |
| 4162530 | Automatic energy supply systems of the multi-rate calculating type According to the supply system, a customer purchases a chip corresponding to a predetermined amount of electricity from a power company and sets the chip in a control device installed in the customer house. The supply system comprises an integrating watth... | 07/24/1979 |
| 4156194 | Frequency-shift-keyed receiver Frequency-shift-keyed signals are detected by a receiver having an input which supplies the received signals to first and second mixers. A local oscillator produces signals at a frequency midway between the two frequencies of the frequency-shift-keyed sig... | 05/22/1979 |
| 4132981 | Self-powered system for measuring and storing consumption of utility meter A system is disclosed for storing signals indicative of a customer's consumption of a utility as measured by a meter, such as adapted to measure the flow of water, gas or electricity, for example, and for storing a corresponding data word to permit subseq... | 01/02/1979 |
| 4109243 | Data sequence display system and time-compression system therefor A system for the cyclical time-compression of a signal waveform, particularly applicable to displays. Continuous input data is temporarily stored, as in a recirculating memory, during the trace and retrace phases (B & A) of a processing or display operati... | 08/22/1978 |
| 4106095 | Electrical usage display system The specification discloses a system for displaying a cumulative indication of the estimated cost of electrical usage in a dwelling wherein electricity is applied through an electrical supply main. A coil is inductively coupled to the supply main for gene... | 08/08/1978 |
| 4087796 | Analog-to-digital conversion apparatus An analog-to-digital converter utilizing a pulse density concept wherein a pulse generator is used and the rate of generation of pulses is a function of the difference between the analog input and the indicated digital output. The pulses are utilized in a... | 05/02/1978 |
| 3996422 | Multiple channel decommutator accumulator A multiple channel decommutator accumulator for decommutating a multiplexed ncoded signal forming a train of serial pulses on a single input line to form a series of parallel channels wherein the pulses are accumulated. A display device is provided for add... | 12/07/1976 |
| 3992705 | Remote adding and reading device for a meter A remote adding and reading device useful in reading a utility meter is disclosed. The device includes a main totalizing register having a first decade counter adapted to be driven by the measuring device of the meter and an auxiliary totalizing register ... | 11/16/1976 |
