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7353356 High speed, low current consumption FIFO circuit  
A FIFO circuit includes a write counter circuit, a memory circuit, a read counter circuit and a selector circuit. The write counter circuit counts a write clock signal during a valid period of...
6924684 Counter-based phase shifter circuits and methods with optional duty cycle correction  
Phase shifter circuits and methods use counters to define the positions of the output clock edges. A plurality of counters are each clocked by a count clock relatively much faster than the input...
6459751 Multi-shifting shift register  
A multi-shifting shift register is adapted for outputting a selected address signal to a memory unit, and includes a control circuit for outputting a number (i) of shift signals and a timing pulse...
5754616 Two-phase counter circuit  
A counter operated on the 2-phase clock which divides a lag time occurring in shift circuits into two parts, one being on the basis of a first clock and the other being on the basis of a second...
5568071 Pulse phase difference encoding circuit  
A pulse phase difference encoding circuit provides a digital signal indicating a phase difference between a first input pulse and a second input pulse. The first input pulse is provided to and...
5525899 Physical quantity change detection device which detects change by detecting a phase difference between two pulses  
An object of the present invention is to provide an A/D conversion device capable of compensating for quantizing errors occurring as a result of variations in operating conditions and a physical...
5504790 Digital data phase detector  
A digital phase detector that stores four sequential digital samples in a shift register. The contents of the shift register is evaluated at one half the clock frequency which generated the digital...
5113086 Polarotator pulse generator circuit for a receiver of satellite broadcasting  
A polarotator pulse generator circuit is disclosed in which a sine-to-square converter converts a sine wave of AC power supply to a square wave, a clock synchronizer synchronizes the square ware of...
5111206 Velocity deception apparatus  
A velocity deception apparatus utilizes a serrodynable digital phase shifter of the Schiffman type where each cell of the phase shifter is driven by an output of a multi-bit counter whose clock...
5058145 System for determining the position of movable machine parts  
A system for determining the position of movable machine parts including an incremental pulse generator for generating angular-speed pulses includes a computer. At least one counting circuit via...
5048063 Machine position detecting apparatus  
A machine position detecting apparatus according to the invention detects the absolute position of a machine by a pulse coder or the like attached to a movable element. Whenever the movable element...
5033066 Event tagging time delay  
A time delay circuit for providing a delayed replica of a digital input signal including first and second counters for providing first and second count outputs offset relative to each other by a...
4982413 Method and device for evaluating signals of an incremental pulse generator  
A method and device for evaluating signals of an incremental pulse generator for generating at least two mutually phase-shifted angular speed signals includes counting the angular speed signals...
4961207 Synchronization of digital signals with alternating current  
A circuit for synchronizing digital signals with alternating current includes a first counter that repetitively starts a first counting sequence at a predetermined phase point in each AC line cycle...
4952883 Phase detector circuit for periodic signal using three sampling data  
A phase detection circuit for detecting the phase shift of an input signal. An A/D converter converts the input signal into first, second and third digital data according to successive three...
4951301 TTL technology digital timing unit  
Timing unit for generating a timing signal for synchronous microprocessors in which an oscillator generates a base frequency equal to four times the timing frequency for the microprocessor. A...
4903283 Phase determining circuit to generate a phase control signal, and method for generating said signal  
The phase of an actual pulse signal (2') with respect to a phase reference pulse signal (1') can be accurately determined and a control output signal in form of a digital number be obtained rapidly...
4847879 Frequency sensing and control circuit  
In construction of a digital phase locked loop for detection of the angular displacement of a mobile object depending on input signals from an encoder, is provided a bit number control circuit so...
4845727 Divider circuit  
A pulse train divider circuit includes a first flip-flop (1) whose Q output is connected to the D input of a second flip-flop (2) whose Q output is connected to the D input of the first flip-flop...
4841552 Digital phase shifter  
A novel digital phase shifter is provided for accomplishing digital phase shifting without the requirement of complex multiplication. The phase shifter includes buffer registers for receiving and...
4763342 Digital phase-locked loop circuits with storage of clock error signal  
The digital phase-locked loop circuit extracts the clock signal from a serial flow of coded data by operating so as to determine the phase of the received signal and comparing this phase with that...
4715050 Digital phase-locked loop circuit  
During the receipt of a result of comparison from the phase detector representing that the synchronization signal is phase-delayed behind the input signal, the selection circuit sequentially...
4712223 Linear all-digital phase locked loop  
A digital phase locked loop to function as a stable reference clock given a gapped, or pulse stuffed, input clock signal which may have a frequency offset relative to the nominal specified...
4712224 Offset digitally controlled oscillator  
An all digital equivalent to a voltage controlled oscillator with low intrinsic jitter and the absence of sample aliasing within a nonzero bandwidth, the offset (non-symmetrical) digitally...
4712225 Phase quantizer apparatus  
Phase quantizer apparatus in an all digital phase locked loop to provide a two-part digital number representing the phase of the input signal (a noncontinuous pulse train) relative to the output...
4700367 Pulse width control circuit  
A pulse width control circuit for providing a control signal to adjust variations of electrical characteristics among a plurality of printing elements has an up/down counter and a plurality of...
4654599 Four phase clock signal generator  
A system for and a method of generating a four phase clock signal is disclosed. The system includes an oscillator circuit that generates a clocking signal of frequency F. A flip-flop, under control...
4649553 Microwave digital phase-shifter apparatus and method for construction  
An electronic phase shifter utilizes a serrodynable digital phase shifter which is driven by the output of a multi-bit counter. The counter in turn has its clock input driven by a pulse train which...
4606058 Process for generating control signals in a predeterminable phase position, circuit arrangement for effectuating the process and utilization of the circuit arrangement  
A process and an arrangement for generating control signals in a predeterminable phase position relative to an alternating voltage at an at least short term-stable frequency through the utilization...
4594516 Sampling pulse generator  
A first 5-stage ring counter generates a signal having a frequency of (4/5)f SC by dividing a frequency 8f SC of a signal. A second 5-stage ring counter generates a signal having a frequency of...
4583856 Resolution system for interferometer  
Analog-to-digital conversion and a computer produce finer resolution for interferometer distance measurement. The system applies to a laser interferometer producing two detected signals with...
4573175 Variable digital frequency generator with value storage  
Characteristics of a pulse sequence, such as frequency, are controlled in a simple circuit without requirement for specific storage components. The cumulative effect of a sequence of control...
4559492 Apparatus for automatically phase-calibrating  
A phase shift between two repeated square wave signals having equal frequency and duty is detected and detected phase shift is integrated during the appointed cycles of the square wave signals and...
4543600 Digital signal phase measuring apparatus as for a phase-locked loop  
A phase measuring arrangement for sampled signals changes the phase of the sampling signal in fine phase increments while comparing the magnitudes of the signal samples so produced to determine...
4486892 Synchronous signal generator  
A synchronous signal generator includes a counter controller for producing a control signal from a reference signal inputted thereto, and a counter circuit responsive to the control signal for...
4485479 Phase control device  
A phase control device for producing a reference pulse train and a plurality of pulse trains and controlling the latter pulse trains so that each of the latter pulse trains is independently...
4468796 Frequency relay for use in the protection of electric power transmission lines  
A digital frequency relay for use in protecting an electrical power transmission line in the event of frequency deviations indicative of a fault condition, including an input device for receiving...
4462110 Digital phase-locked loop  
A phase-locked loop is implemented using strictly digital techniques. The average frequency of the input signal is first sampled by counting the number of pulses from a clock source which occur...
4443767 Variable phase lock control  
The present invention is a system for accurately phase locking two signals having the same frequency but which are of arbitrary wave shape, and which can be at very low or at substantially higher...
4417352 Microphase stepper employing improved digital timing incrementer employing a rate multiplier  
Apparatus for imparting a delay to an input signal utilizing counter means comprised of a plurality of binary coded decimal counter stages connected in cascade. The high frequency input signal...
4394618 Digital tracking phase meter  
A digital tracking phase meter comprising a shaper of narrow pulses corresponding to a leading edge of an input square-shaped signal, connected by the output thereof to one input of a switch, the...
4390780 LSI Timing circuit for a digital display employing a modulo eight counter  
This disclosure relates to a timing circuit for a digital display, which circuit includes a series of counters, each having four stages such that each counter will drive the next stage only when it...
4387294 Shift register-latch circuit driven by clocks with half cycle phase deviation and usable with a serial alu  
In a multiple stage data transfer circuit, suitable for transferring a plurality of bits to or from a bit processor or 1-bit arithmetic logic unit, each bit stage includes a shift register portion...
4379221 Circuit for detecting phase relationship between two signals  
A circuit for detecting leading or lagging phase relationship between first and second two-level input signals at each level transition of a selected one of the input signals and comprising first...
4300039 Incremental encoder  
A circuit for detecting each level transition of a first two-level signal of a given frequency and its leading or lagging phase relationship with a second two-level signal of said given frequency,...
4281254 Self scanned photosensitive array  
A photosensor array with single transfer register (36) and individual transfer gates (38) for conducting signal packets derived from the photosensors (12) of the array to the transfer register...
4247898 Apparatus for computing the change in bearing of an object  
Apparatus is described for computing the change in bearing of an object during a time period T from continuously-received signals E x and E y having amplitudes proportional to x and y components...
4216544 Digital clock recovery circuit  
A digital clock recovery circuit in which the phase of the divider chain driven by a local clock is controlled in order to maintain its output (the recovered clock signal) in synchronization with...
4216463 Programmable digital tone detector  
A plurality of up/down counters are controlled by a programmed digital reference signal. The combination of a high select signal and a high input signal causes any one of the counters to increment...
4180778 Digital signal phase shifting system  
A digital signal phase shifting system which comprises a timing signal generator producing cyclic digitally coded timing signals; a first system output signal generator capable of decoding the...
Matches 1 - 50 out of 111 1 2 3 >