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8941431 Continuous time cross-correlator  
There is provided a continuous time cross-correlator comprising: a quantizer for quantizing the incoming signal into discrete levels; a delay line comprising one or more delay units separating a...
8698572 Delay line calibration  
A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple...
8593196 Test circuit and methods for speed characterization  
A system and method for efficiently performing timing characterization of regions of an integrated circuit. An integrated circuit has monitors distributed in different physical regions across its...
8294504 Methods and systems related to a configurable delay counter used with variable frequency clocks  
In certain arrangements and methods, a reset-able counter (100) produces multiple delay times as required by, for example, a finite state machine. The counter (100) counts a stored value by a...
7855611 Delay line calibration  
A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple...
7737750 Method and device for determining trim solution  
A trimming system for determining a trim solution for a semiconductor device includes an internal value generating circuit for generating an internal value based upon a counter value. The...
7728642 Ripple counter based programmable delay line  
A programmable delay line includes a first oscillator that is enabled and generates a plurality of clock cycles of a clock signal in response to a transition of the input signal. A first...
7719332 Glitch reduced delay lock loop circuits and methods for using such  
Delay lock loop circuits are described, which may include two or more delay stages that each includes a plurality of selectable delay elements. A reference signal drives an input of the first...
7665004 Timing generator and semiconductor testing apparatus  
A timing generator that needs no analog circuit for adding jitters and allows the circuit scale and power consumption to be reduced. There are included a counter for performing a counting...
7586351 Apparatus and method for controlling delay of signal  
An apparatus, includes a counter which counts a frequency of input of a first signal, a delay controller which generates a second signal by adding a delay to the first signal, the delay...
7587541 Master-slave device communication circuit  
A master-slave device communication circuit includes a master device, a bus, and a slave device having a bus switch connected to the master device via the bus, and a status detecting circuit. The...
7541853 Spread spectrum block control apparatus and spread spectrum clock generating apparatus  
A phase interpolator receives an input clock signal and varies the phase of an output clock signal in accordance with a phase control signal. An SSC controller, which generates the phase control...
7495495 Digital I/O timing control  
When certain digital circuit devices receive data bus signals, I/O interfaces need to sample the data signals during a time when these signals are both valid and stable. Typically, the data...
7425858 Delay line periodically operable in a closed loop  
A delay line is periodically configured into a delay-locked loop for calibration purposes. That is, the delay line is operated in an open loop mode during a first time period in which a signal,...
7236034 Self correcting scheme to match pull up and pull down devices  
The self correcting scheme to match pull up and pull down devices includes: a first comparator for comparing a common mode signal to a high reference limit; a second comparator for comparing the...
7183829 Semiconductor device including a plurality of circuit blocks provided on a chip and having different functions  
A logic circuit block and a memory circuit block are provided on a semiconductor chip. A timing adjustment circuit block for adjusting the propagation timing of signals is provided on a line...
7154321 Digital delay line  
A digital delay line including a first feedback delay line having a first number of interlinked first delay elements, at least one second feedback counter having a second number of second...
7092480 High-speed synchronous counters with reduced logic complexity  
Described are fast synchronous counters with reduced combinatorial logic. In one embodiment, a four-bit shift register is configured in a ring and preset with a data pattern (e.g., 1000). The...
6876717 Multi-stage programmable Johnson counter  
A counter has selectable divide factors using multiple multiplexers. The counter includes an inverter and cascading delay stages having selectable stage delays. The inverter connects a stage...
6873199 Variable digital delay line  
Disclosed is a semiconductor device for outputting an output signal with a given phase held relative to an external clock despite a difference in characteristic, a change in temperature, and a...
6819157 Delay compensation circuit  
A delay compensation circuit that determines the effects of process, voltage, and temperature (PVT) conditions of a chip by measuring the effective delay time of delay components inside the chip....
6570426 Delay circuit  
In a delay circuit, a voltage detecting circuit is additionally provided. This voltage detecting circuit detects such a condition that a voltage appeared at a measuring terminal of the delay...
6556643 Majority filter counter circuit  
An improved DDLL containing a majority filter counter circuit is disclosed. The majority filter counter circuit is located between the phase detector and the shift register of the DDLL. The...
6531906 Delay systems and methods using a variable delay SINC filter  
A delay system includes a first filter configured for receiving a selected input signal and a first mechanism for activating the first filter to produce a delayed output signal which is a function...
6525585 Fixed-length delay generation circuit  
A fixed-length delay generation circuit comprises a first variable delay circuit (VDC), a clock generation circuit, a VDC group including one or more second VDCs, and a delay controller. The clock...
6417706 Internal clock generator generating an internal clock signal having a phase difference with respect to an external clock signal  
An internal clock generation circuit according to the present invention comprises a phase comparator, a shift register, a filter, a monitor circuit, and a plurality of delay lines such as first...
6369634 Delay systems and methods using a variable delay sinc filter  
A delay system includes a first filter configured for receiving a selected input signal and a first mechanism for activating the first filter to produce a delayed output signal which is a function...
6215345 Semiconductor device for setting delay time  
The semiconductor device for setting a delay time, according to the present invention, comprises: a plurality of serially connected delay circuits into which a reference signal is input; a...
6127870 Output delay circuit  
An output delay circuit has a counter which is reset at every input of an input signal of a first signal state thereto and counts input clocks while the input signal of a second signal state is...
6072347 Delay locked circuit  
A circuit and method for performing a delay locked function for correcting phase differences between an input clock signal RCLK and an internally generated clock signal ICLK and for controlling...
6037817 Apparatus and method for digital delays without dead time  
A digital pulse delay system comprises: a counter incremented responsive to a succession of input pulses and generating a plurality of successive gating signals; a plurality of gates, each having...
6034558 Method and apparatus for compensating for thermal drift in a logic circuit  
A system for compensating for thermal drift of an output signal (OUT1) produced by a logic circuit in response to an input CLOCK signal after a temperature dependent delay includes a variable...
5945862 Circuitry for the delay adjustment of a clock signal  
Circuitry for adjusting the phase of an incoming periodic signal, typically a clock signal, throughout the entire period of the periodic signal. Phase adjustment circuitry has high resolution and...
5900762 Self-calibrating electronic programmable delay line utilizing an interpolation algorithm  
A programmable delay line. The programmable delay line includes a series of delay cells which are programmably connected in series. The programmable delay line includes a main delay chain and...
5818277 Temperature balanced circuit  
A temperature balanced circuit is provided which is capable of, in case a CMOSIC is utilized as a delay circuit, giving a constant delay time to an input signal to the delay circuit even if the...
5815017 Forced oscillator circuit and method  
An integrated circuit and method produce a first clock signal (CLOCK) from a reference clock (REFCLK) but at a different frequency. A variable delay line (32) produces the first clock signal by...
5789969 Digital delay circuit and method  
A digital delay circuit structure includes a digital calibration circuit and a digital delayed signal generator. The digital delay circuit is automatically calibrated when a calibrate signal goes...
5754071 Digital signal delaying method and circuit  
A digital signal delay circuit includes a first pair of counters for setting a starting point of a digital output signal by counting an adjustably set number of clock pulses corresponding to an...
5744992 Digital phase shifter  
A digital phase shifter phase shifts an input signal by a predetermined phase angle. A length of a cycle of the input signal is determined. Then an output signal is generated which is phase...
5731725 Precision delay circuit  
A precision delay circuit in an integrated circuit chip includes a transistor switching circuit in combination with a control circuit and a compensation circuit. The transistor switching circuit...
5710744 Timing generator for IC testers  
Output pulses of a period which is an integral multiple of the fundamental period T are generated by coarse timing generating means 13 in correspondence with an integral part Di of timing set data...
5563594 Circuit and method of timing data transfers  
A data conversion circuit receives input data from external sourcing logic and performs a parallel-serial conversion. Likewise, a data conversion circuit performs a serial-parallel conversion and...
5554949 Circuit arrangement for delaying a functional signal  
A circuit arrangement for delaying a useful signal which is stored in the form of time-discrete signal samples in a row of storage devices at time intervals which are determined by a clock signal...
5488325 Timing generator intended for semiconductor testing apparatus  
A timing generator for generating delay timing signals which have delay time up to n-times of a reference clock period is capable of considerably reducing the hardware size. The timing generator...
5485114 Semiconductor integrated circuit with internal compensation for changes in time delay  
A semiconductor integrated circuit detecting a change in the internal propagation delay and self-compensating such a change. A combination of semiconductor integrated circuits can self-compensate...
5485113 Jitter-compensated sampling phase control apparatus  
In a sampling phase controlling apparatus for controlling a phase of a clock signal supplied to a transmission system including a discriminating circuit for discriminating a received signal and an...
5465076 Programmable delay line programmable delay circuit and digital controlled oscillator  
A programmable delay line comprises a plurality of delay stages connected in series, each of the delay stages including: a basic path for passing an input signal; a delay path for passing the...
5452336 Memory device for recording a time factor  
A memory device for recording a time factor of data includes a threshold element, coupling capacitance, an RC-circuit, and a digital counter. A reference voltage is input to the RC-circuit. The...
5422923 Programmable time-interval generator  
A programmable time-intervals generator comprising first and second digital counters, a memory, a digital divider and a digital adder. On the occurrence of a first event, the first counter starts...
5237224 Variable self-correcting digital delay circuit  
A variable self-correcting on-chip circuit comprised of a plurality of digital circuit components is described, whereby electrical signals are precisely positioned with respect to one another....

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