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| Number | Title | Issue Date |
| 7352826 | Analog delay circuit An analog delay circuit to impart a group delay to an analog input signal is described. The analog delay circuit may comprise a capacitor to impart at least a portion of the group delay to the analog output signal and a buffer circuit coupled between the capacitor a... | 04/01/2008 |
| 7342463 | Timer circuits and method A timing circuit operates by applying an arbitrary voltage across a resistance, and using the resulting current to generate a charging current which charges and/or discharges a capacitance to an endpoint voltage. Additional circuitry is arranged such that the capaci... | 03/11/2008 |
| 7271645 | Smart charge-pump circuit for phase-locked loops The smart charge-pump circuits basically include a high-performance charge-pump circuit as well as a smart lock-in circuit. After the smart charge-pump circuit sensors an initial condition and responds accordingly, it will begin to operate fully as a high performanc... | 09/18/2007 |
| 7203126 | Integrated circuit systems and devices having high precision digital delay lines therein An integrated circuit delay device includes a digital delay line configured to provide a percent-of-clock period delay to a timing signal received at an input thereof, in response to a control signal. This control signal has a value that specifies a length of the de... | 04/10/2007 |
| 7187599 | Integrated circuit chip having a first delay circuit trimmed via a second delay circuit An integrated circuit chip including a first delay circuit and a second delay circuit. The first delay circuit has a first delay circuit topology configured to delay a signal a first delay. The second delay circuit has a second delay circuit topology configured to p... | 03/06/2007 |
| 7111184 | System and method for deterministic communication across clock domains A clock distribution and control system (10) includes one counter (30) in a clock generation domain and another counter (40) in a phase-delayed clock domain. The phase-delayed domain counter (40) output is combined with a programmable off... | 09/19/2006 |
| 7103791 | Interleaved delay line for phase locked and delay locked loops An interleaved delay line for use in phase locked and delay locked loops is comprised of a first portion providing a variable amount of delay substantially independently of process, temperature and voltage (PVT) variations while a second portion, in series with the ... | 09/05/2006 |
| 7039885 | Methodology for design of oscillator delay stage and corresponding applications Methods are described that involve characterizing an oscillator's jitter or phase noise over a plurality of the oscillator's effective number of delay stages. The oscillator comprises a series of delay stages. Each one of the effective number of delay stages, if sel... | 05/02/2006 |
| 7020794 | Interleaved delay line for phase locked and delay locked loops An interleaved delay line for use in phase locked and delay locked loops is comprised of a first portion providing a variable amount of delay substantially independently of process, temperature and voltage (PVT) variations while a second portion, in series with the ... | 03/28/2006 |
| 6944070 | Integrated circuit devices having high precision digital delay lines therein Integrated circuit delay devices include a digital delay line that is configured to provide a percent-of-clock period delay to a timing signal accepted at an enabled one of a plurality of injection ports thereof. The digital delay line may be responsive to an inject... | 09/13/2005 |
| 6807509 | Method and systems to measure propagation delay in semiconductor chips A method and systems to evaluate the propagation delay within a semiconductor chip (305) that is embedded in an electronic system without requiring measurement apparatus and specific electrical contacts is disclosed. Since most of electronic systems use a mic... | 10/19/2004 |
| 6600379 | Voltage-controlled variable duty-cycle oscillator A voltage-controlled variable duty-cycle oscillator includes a current generator whose current Iref mirrored in three one-shots that each include two pair of series-coupled MOS transistors and a timing capacitor. The timing capacitor is precharged to Vcc ... | 07/29/2003 |
| 6396317 | Digital voltage controlled oscillator A digital voltage controlled oscillator is disclosed. The digital voltage controlled oscillator includes an input for receiving input signals representative of a desired frequency. It also includes a pulse generator and a logic circuit. The logic circuit ... | 05/28/2002 |
| 6281732 | Precision multivibrator using stabilized amplifier system The object of this invention are bistable, monostable and astable multivibrator in which the switching transition level is stable and relatively independent of ambient temperature. This reduction is accomplished by using an auto-zero amplifier system with... | 08/28/2001 |
| 6154099 | Ring oscillator and method of measuring gate delay time in this ring oscillator A ring oscillator is formed by connecting three or more odd gate circuits in a ring. Each gate circuit includes a precharge dynamic gate. An output signal from the precharge dynamic gate of one gate circuit is used to precharge the precharge dynamic gates... | 11/28/2000 |
| 5712600 | Astable multivibrator An astable multivibrator comprising a capacitor connected between a first output signal and a third output signal, an amplification circuit connected between the first and third output signals, a delay for delaying a signal logic-converted from the first ... | 01/27/1998 |
| 5673005 | Time standard circuit with delay line oscillator This is an integrated timing circuit which can be formed on a microprocessor chip. The circuit uses an oscillator having a delay line and a variable delay element. The delay line and the delay element vary together to hold the velocity of signal propagati... | 09/30/1997 |
| 5546054 | Current source having voltage stabilizing element A current source including a current mirror circuit and an active load circuit which form a reference branch, for setting a reference current value, and a mirroring branch, defining an output current value, connected between supply and ground. A voltage s... | 08/13/1996 |
| 5469086 | Floating detection circuit A floating detection circuit detects the floating state of an input node which can receive an externally applied DC input signal, and includes a pulse generator, a counter and a floating state discriminator. The pulse generator is coupled to the input nod... | 11/21/1995 |
| 5079689 | Pulse-type electric supply for a load equipped with means for diverting the electric power liable to be reflected by the load A pulse-type electric supply system for a load, equipped with means for diverting the electric power liable to be reflected by the load. The system includes an electric pulse generator (8) for supplying pulses to the load (12), a direct current electric s... | 01/07/1992 |
| 4837525 | Transient waveform generator A transient waveform generator capable of generating waveforms having operator specifiable characteristics, including amplitude, rise time, and phase inversion.... | 06/06/1989 |
| 4803378 | Pulse generator A pulse generator comprises a capacitor, means for periodically discharging the capacitor to generate pulses of electricity and means for recharging the capacitor between pulses. Means is included for sensing a residual reverse polarity charge on the capa... | 02/07/1989 |
| 4748382 | Electric circuit arrangement An electric circuit arrangement for use in energising a flash tube (3) to provide a series of pairs of flashes, each pair consisting of a main flash and a rapidly following second flash, includes first and second capacitors (C9, C10) which are controlled ... | 05/31/1988 |
| 4732457 | Autonomous power supply for observation device, in particular with stereoscopic effect The autonomous power supply for observation device with capacitive-effect electrooptical cells includes a low-voltage power source, clock or synchronization circuits, switches and circuits processing the clock signals or synchronization to control circuit... | 03/22/1988 |
| 4535305 | Transmission gate relaxation oscillator having comparator An oscillation circuit having a reference voltage circuit for forming a reference voltage by dividing a power supply voltage. The reference voltage circuit supplies the reference voltage to one of the input terminals of the comparing circuit. A charge/dis... | 08/13/1985 |
| 4380746 | Pulse modulator using capacitor charging and discharging circuits A self-starting, non-latching, pulse modulator which will function as an analog divider of first and second input quantities, or as a linear pulse period modulator responsive to one of the quantities, or as a linear pulse frequency modulator responsive to... | 04/19/1983 |
| 4229978 | System for selectably pulsing ultrasonic transducers in a test apparatus A system for selectably electrically pulsing each of a plurality of ultrasonic transducers in a testing apparatus in rapid sequence to produce a pattern of ultrasonic energy transmitted into and subsequently received from a test piece comprises a pluralit... | 10/28/1980 |
| 4229700 | Buried reed, extra-short pulse width pulser A buried reed, extra-short pulse width pulser is an extra fast rise and fall time short pulse width pulser with very high voltage output. A typical pulser may have a 10 picosecond rise and fall time, a 500 picosecond flat top time, and up to a 1000 volt o... | 10/21/1980 |
| 4153871 | Implicit pulse-to-pulse high voltage detection and controller A device for precise vernier control of the net charge on the high-voltage filter capacitor in a high voltage, high energy power supply through control of the charge on a low-voltage capacitor in series with the grounded end of the main high-voltage filte... | 05/08/1979 |
| 4063109 | Clock pulse system A clock pulse system for generating and distributing two clock pulse signals which are symmetrical with respect to each other and which are shifted in time. Each of the clock pulse signals are also symmetrical per se. The system comprises a current source... | 12/13/1977 |
| 4035744 | Sawtooth wave oscillator circuit A sawtooth oscillator comprises a differential amplifier and first and second switching transistors driven into opposite conductivity states by the output of the differential amplifier. A charging capacitor is connected between the switching transistors a... | 07/12/1977 |
| 3979683 | Noise eliminator circuit A noise eliminator circuit comprises a detector which detects whether or not the incoming signal exceeds a prescribed level, and an eliminator which eliminates noise signals above the predetermined level. Delay circuitry is coupled between the detector an... | 09/07/1976 |
