79results about "Measurement by measuring electric/magnetic quantity change" patented technology

The present invention is an improved computational method and system of empirical induction that can be used to arrive at generalized conclusions and make predictions involving longitudinal associations between and among variables and events. Empirical induction is used to gain scientific knowledge, to develop and evaluate treatments and other interventions, and to help make predictions and decisions. The invention, which is distinct from and often complementary to the statistical method, is applied to repeated measures and multiple time-series data and can be used to quantify, discover, analyze, and describe longitudinal associations for individual real and conceptual entities. Major improvements include provisions to define Boolean independent events and Boolean dependent events and to apply analysis parameters such as episode length and episode criterion for both independent and dependent variables, persistence after independent events, and delay and persistence after Boolean independent events. These improvements are in addition to levels of independent and dependent variables, delay after independent events, and provision to quantify benefit and harm across two or more dependent variables. Additional improvements include provisions to quantify longitudinal associations as functions of period or time and to compute values of predictive indices when there are two or more independent variables. Major applications and uses of the invention include data mining, the conduct of clinical trials of treatments for the management or control of chronic disorders, health-effect monitoring, the quantification and analysis internal control in adaptive systems, analyses of serial functional images, analyses of behavior and behavior modification, and use to create computerized devices and systems whose behavior can be modified by experience. The present invention is best implemented on the Internet.

A simple electronic horological device, termed a time cell, is presented with associated methods, systems, and computer program products. A time cell has an insulated, charge storage element that receives an electrostatic charge through its insulating medium, i.e. it is programmed. Over time, the charge storage element then loses the charge through its insulating medium. Given the reduction of the electric potential of the programmed charge storage element at a substantially known discharge rate, and by observing the potential of the programmed charge storage element at a given point in time, an elapsed time period can be determined. Thus, the time cell measures an elapsed time period without a continuous power source. One type of time cell is an analog time cell that may have a form similar to a non-volatile memory cell, particularly a floating gate field effect transistor (FGFET). The time cell may have an expanded floating gate for storing an electrostatic charge. At a given point in time after programming the analog time cell, a sensing operation indirectly observes the retained charge in the floating gate by directly or indirectly observing the threshold voltage of the FGFET. By knowing the operational characteristics of the time cell and its initial programming condition, the observation can be converted into an elapsed time value. A time cell can be designed and / or programmed to select the range of time to be measured.

PCT No. PCT / US97 / 05299 Sec. 371 Date Dec. 18, 1998 Sec. 102(e) Date Dec. 18, 1998 PCT Filed Apr. 1, 1997 PCT Pub. No. WO97 / 39360 PCT Pub. Date Oct. 23, 1997To measure relatively long time intervals with very high resolution, apparatus and method operate to receive a first pulse and a clock signal that has a known period, synchronize the first pulse with the clock signal, stretch the first synchronized pulse in accordance with a first stretch ratio, produce a first compared output pulse corresponding to the first stretched signal, synchronize the first compared output pulse with the clock signal, generate a first pulse sequence from the first synchronized pulse and the first synchronized compared output pulse, convert times of occurrences of the edges of the first pulse sequence to respective time values, receive a second pulse and generate a second pulse sequence in a manner similar to that of the first pulse sequence, convert times of occurrences of the edges of the second pulse sequence to respective time values, count the elapsed number of clock periods between the first and second synchronized pulses, derive the time interval between the received pulses from the time values, the first and second stretch ratios, the period of the clock and the elapsed number of clock periods, and calibrate the first and second stretch ratios from the time values.

An electronic charge retention circuit for time measurement, including: at least a first capacitive element, a first electrode of which is connected to a floating node (F); at least a second capacitive element, a first electrode of which is connected to the floating node, the first capacitive element having a leakage through its dielectric space and the second capacitive element having a capacitance greater than the first; and at least a first transistor having an isolated control terminal connected to the floating node.

A time limit function utilization apparatus includes a first function block, a second function block, a signal line which connects the first and second function blocks and allows using a desired function that is generated by accessing the first and second function blocks with each other, and a semiconductor time switch interposed in or connected to the signal line, and disables or enables mutual access between the first and second function blocks upon the lapse of a predetermined time.

A time measurement circuit measures the time difference between edges of a first signal and a second signal. A sampling circuit acquires the logical level of the first signal at a timing of the edge of the second signal. When a sampling circuit enters a metastable state, an output signal thereof transits with a long time scale. A transition time measurement circuit measures a transition time (settling time) of the output signal of the sampling circuit in the metastable state.

The invention relates to a time measurement circuit and an optoelectronic range finder using such a time measurement circuit. The time measurement circuit and for an incoming signal, in such a condition, has a comparator stage for generating a comparator output signal depending on a fulfillment of a criterion by the incoming signal, wherein exceeding or falling below a threshold value is defined as the criterion. Furthermore, a digitization stage is provided, for sampling, which is performed at a defined sampling rate, of an input signal fed to the digitization stage and converting it into digital data containing sampled values for the input signal, and an evaluation unit for determining a chronological location for the incoming signal by evaluating the digital data. A signal generating stage is interconnected between the comparator stage and the digitization stage, which is designed to generate and output, in a chronologically fixed manner dependent on the content of the comparator output signal, a shape signal, which is designed for post-sampling interpolation ability, of known shape. The evaluation unit then determines the time for the incoming analog signal while using a chronological interpolation of the values contained in the digital data and the known shape of the shape signal.

A semiconductor integrated circuit according to an example of the present invention includes a semiconductor substrate, an element isolation insulating layer formed in a surface region of the semiconductor substrate, and first and second MIS type devices isolated from each other by the element isolation insulating layer and formed in adjacent first and second element regions in a second direction orthogonal to a first direction. Each of the first and second MIS type devices has a stack gate structure having a floating gate and a control gate electrode. The first MIS type device functions as an aging device, and the second MIS type device functions as a control device which controls an electric charge retention characteristic of the aging device.

A method and a circuit for protecting data contained in an electronic circuit against a disturbance of its operation, in which a detection of a disturbance conditions the incrementing or the decrementing of a counter over at least one bit, the counter being automatically reset at the end of a time period independent from the fact that the circuit is or not powered.

A calibration method for a time measurement apparatus having time-voltage converter for converting the time interval of measurement signals and clock signals to voltage, analog-digital converter for converting this voltage to digital values, and time interval measurement device for measuring this time interval from these digital values, wherein it comprises a calibration signal generation step for calibrating the calibration signals for the subperiod of these clock signals, with these calibration signals having a shorter period difference than the time which corresponds to the resolution of this analog-digital converter; a frequency distribution analysis step for repeatedly measuring these calibration signals, finding this digital value, and analyzing the cumulative frequency distribution of these digital values; and a calibration determining step for determining the calibration value of these digital values such that this cumulative frequency distribution is linear.

A time interval to voltage converter with very low nonlinearity for time stamping events. The converter automatically selects one of two clocks related to a reference clock and ensures that the time between an event edge to a clock edge is sufficiently large to properly operate a switch and yield very linear time-to-voltage conversion.

A method and a circuit for controlling the access to at least one resource of an electronic circuit, in which a test of the value of a counter over at least one bit conditions the access to the resource, the counter being automatically reset after a time period independent from whether the circuit is powered or not.

A method and system for controlling a commercial transaction is presented. An article of manufacture has a time cell that is read by an electronic apparatus. In response to a determination of a state of the time cell by the electronic apparatus, usage of the article of manufacture in a commercial transaction is enabled or denied based on the determined state of the time cell. The expiration period of a time cell controls the time period during which the commercial transaction is enabled or is denied to be performed; an unexpired time cell may both enable or deny performance of a commercial transaction, and an expired time cell may also both enable or deny performance of a commercial transaction. The time cell may be used to restrict the usage period of a coupon, a promotional offer, a pre-paid service, or some other commercial transaction that involves an article of manufacture.

A time recording device employs a floating gate cell, wherein an ON layer structure or an ONO layer structure is provided between floating gate and control gate. A charge injection unit is provided to inject charges into the floating gate electrode and into the nitride layer of the ON structure or the ONO structure by applying a voltage or voltage pulses to the control gate electrode, a center of concentration of the charges injected into the nitride layer being located at the interface between oxide layer and nitride layer of the layer sequence. The time recording device also includes a unit for recording a time which has elapsed since charge injection on the basis of changes in the transmission behavior of the channel region caused by a shift in the center of concentration of the charges in the nitride layer away from the interface.

An electronic charge retention circuit for time measurement, implanted in an array of EEPROM memory cells, each including a selection transistor in series with a floating-gate transistor, the circuit including, on any one row of memory cells: a first subassembly of at least a first cell, the thickness of the dielectric of the tunnel window of the floating-gate transistor of which is less than that of the other cells; a second subassembly of at least a second cell, the drain and source of the floating-gate transistor of which are interconnected; a third subassembly of at least a third cell; and a fourth subassembly of at least a fourth cell, the tunnel window of which is omitted, the respective floating gates of the transistors of the cells of the four subassemblies being interconnected.

A method of controlling an electronic charge retention circuit for time measurement, including at least a first capacitive element, the dielectric of which has a leakage, and at least a second capacitive element, the dielectric of which has a higher capacitance than the first, the two elements having a common electrode defining a floating node that can be connected to an element for measuring its residual charge, in which a charge retention period is programmed or initialized by injecting or extracting charges via the first element.

A method and a circuit for reading an electronic charge retention element for a temporal measurement, of the type including at least one capacitive element whose dielectric exhibits a leakage and a transistor with insulated control terminal for reading the residual charges, the reading circuit including; two parallel branches between two supply terminals, each branch including at least one transistor of a first type and one transistor of a second type, the transistor of the second type of one of the branches consisting of that of the element to be read and the transistor of the second type of the other branch receiving, on its control terminal, a staircase signal, the respective drains of the transistors of the first type being connected to the respective inputs of a comparator whose output provides an indication of the residual voltage in the charge retention element.

An apparatus for controlling drive of a plurality of actuators is provided. The apparatus comprises a plurality of drive circuits respectively driving the actuators and respectively mounted on a plurality of circuit boards each formed as a module for driving each of the actuators. Each module is detachable to the apparatus. The apparatus comprises a plurality of capacitors each mounted on each of the circuit boards. The capacitors have capacitances different from each other. The apparatus also comprises a charging unit charging the capacitors, a measuring unit measuring a period of time during which a charging potential at each of the capacitors rises up to a predetermined potential, a module type determining unit determining a type of each of the modules in accordance with the period of time for each capacitor measured, and a unit for taking countermeasures depending on a determined result.

The invention relates to a segmented timing velocity measuring system based on a wireless local area network and belongs to the technical field of sports equipment. An exercise training segmented timing system consists of at least two groups of timers, each timer consists of an infrared emission device and an infrared receiving device which are arranged on a support respectively, the infrared emission devices and the infrared receiving devices are located on the same horizontal plane, emission surfaces of the infrared emission devices and receiving surfaces of the infrared receiving devices are arranged oppositely, the infrared receiving devices are provided with infrared receiving sensors, single-chip microcomputer modules and wireless modules, signal lines of the infrared emission sensors are connected with IO (input / output) ports of the single-chip microcomputer modules, and the wireless modules are connected with IO ports of the single-chip microcomputer modules. Each timer performs communication through the wireless modules, and measured time and velocity data are sent to terminal equipment through the wireless modules. The segmented timing velocity measuring system is reasonable in design, simple in structure, accurate in timing and convenient to use.

A time difference signal having a pulse width corresponding to the time difference between an output of a resonant pressure sensor and a reference clock is prepared. The pulse width of the time difference signal is expanded by a given magnification. Based on a count value obtained by counting the reference clock during the expanded pulse width and a count value obtained by counting the reference clock during one cycle of the output of the resonant pressure sensor or a period which is integer times as long as the one cycle, the output frequency of the resonant pressure sensor is obtained. It is possible to obtain the fast processing and the high resolution without increasing the frequency of the reference clock.