Class 327/173 - Pulse narrowing

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein the output pulse width or duration
No. of patents: 73
Last issue date: 05/13/2008

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Number	Title	Issue Date
7372928	Method and system of cycle slip framing in a deserializer A method and system for cycle slip framing is disclosed. The method includes receiving an asynchronous signal and generating a synchronous pulse after receiving the asynchronous signal. The method further provides that the synchronous pulse be used to affect a bit s...	05/13/2008
7358785	Apparatus and method for extracting a maximum pulse width of a pulse width limiter An apparatus and method for extracting a maximum pulse width of a pulse width limiter are provided. The apparatus and method of the illustrative embodiments performs such extraction using a circuit that is configured to eliminate the majority of the delay cells util...	04/15/2008
7317341	Duty correction device A duty correction device includes: a duty correction unit having a plurality of duty correction cells for selectively activating the duty correction cells according to a count signal to adjust a pulse width of an input clock and output the adjusted clock as an outpu...	01/08/2008
7310010	Duty cycle corrector A duty cycle corrector includes a first controllable delay, a second controllable delay, a phase detector, and a compensation circuit. The first controllable delay is configured to delay a first signal to provide a second signal. The second controllable delay is con...	12/18/2007
7307461	System and method for adaptive duty cycle optimization A system and method for configuring a receiver such that the duty cycle of the receiver clock accurately matches the duty cycle of the data signal received. This adaptive system and method calibrates a receiver's duty cycle to optimize the receiver timing margin for...	12/11/2007
7298193	Methods and arrangements to adjust a duty cycle Embodiments may include a duty cycle controller to adjust the duty cycle of the clock signal based upon a delay signal and an input clock signal. A duty cycle detector may determine signals with frequencies based upon the duty cycle of the output signal and a correc...	11/20/2007
7282977	Duty cycle correction device Enclosed is a duty cycle correction device for correcting a duty cycle of a clock signal output from a delay locked loop circuit. The duty cycle correction device includes a mixer for mixing phases of the first and second clock signals, thereby outputting a first si...	10/16/2007
7282976	Apparatus and method for duty cycle correction The present invention related to an apparatus and a method for increasing a voltage level of duty correction voltages to a predetermined level during a predetermined time in a delay locked loop. An apparatus, included in a delay locked loop, includes a control block...	10/16/2007
7199633	Electric pulse generator and method for generating short electric pulses A method for generating short electric pulses, comprising the steps of generating a control pulse, feeding the control pulse to a bipolar transistor, which subsequently emits an output signal with a steep switch-off side by exploiting the charge storage effect of th...	04/03/2007
7180356	Semiconductor circuit The level shift circuit in the semiconductor circuit of the invention has a configuration comprising an input stage inverter circuit which inputs an input signal having a first voltage amplitude and outputs an inverted signal of this input signal, an output stage in...	02/20/2007
7180347	Systems and methods for minimizing harmonic interference Systems and methods are disclosed for minimizing nth-order harmonic associated with a square wave clock signal having a predetermined frequency and duty cycle. The system changes the duty cycle of the clock to eliminate or suppress the nth-order harmonic of the cloc...	02/20/2007
7151394	Phase shifting and PWM driving circuits and methods The present invention provides an inverter controller comprising a drive circuit that generates a plurality of switch drive signals for inverter applications. In some exemplary embodiments, the drive circuit operates by reversing the command level of an error signal...	12/19/2006
7091762	Systems and methods for minimizing harmonic interference Systems and methods are disclosed for minimizing nth-order harmonic associated with a square wave clock signal having a predetermined frequency and a duty cycle. The system changes the duty cycle of the clock to eliminate or suppress the nth-order harmonic of the cl...	08/15/2006
6975142	Semiconductor device There is provided a semiconductor device in which fabrication steps can be reduced by constructing a circuit using only TFTs of one conductivity type and in which a voltage amplitude of an output signal can be normally obtained. A capacitance (205) is provide...	12/13/2005
6956409	Reference voltage detector for power-on sequence in a memory System and method for detecting a reference signal. A preferred embodiment comprises a latch (such as the latch 320) and a filter (such as the filter 325). The latch tracks a reference signal at its input and reflects the reference signal at its output...	10/18/2005
6943603	Pulse generating circuit and semiconductor device provided with same A pulse generating circuit generates a pulse with a desired pulse width even when a process parameter for manufacturing fluctuates or a source voltage varies. The pulse generating circuit includes a first voltage outputting section having a first delay circuit and o...	09/13/2005
6924681	Efficient pulse amplitude modulation transmit modulation Efficient PAM transmit modulation is provided by a PAM modulator that includes an oscillator (404) that provides a clock signal, CKV, (408). The clock signal 408 and a delayed version (CKV_DLY) 420 of the clock signal are provided to a lo...	08/02/2005
6903590	Pulse generating circuit and high-side driver circuit A pulse generating circuit that has a reset pulse generation circuit configured to output a reset pulse when an input signal changes from a first state to a second state and a set pulse generation circuit configured to output a set pulse when the input signal change...	06/07/2005
6833736	Pulse generating circuit A pulse generator circuit includes a first logic means, a second logic means, a first delay means, and a second delay means. The first logic means is for receiving an input clock signal. The first delay means is for delaying the input clock signal by a first delay t...	12/21/2004
6753695	Semiconductor integrated circuit device and pulse width changing circuit A semiconductor integrated circuit device comprises a plurality of MIS transistors, and an integrated circuit unit including logic gate circuits configured by a combination of the plurality of MIS transistors. Each of the MIS transistors has a gate including a circu...	06/22/2004
6653879	Method and system for managing a pulse width of a signal pulse An input signal is received having a period and an input pulse width. The input pulse width of an input signal is adjusted to an output pulse width of an output signal based upon a recording control signal for control of recording on a storage medium. The...	11/25/2003
6614277	Circuit for providing a minimum wake-up time in the wake-up logic circuits A circuit for providing a minimum wake-up time, in which a monostable circuit generates the WAKE-UP signal for a time at least as long as a minimum time established by the monostable circuit. The circuit is structured to extend the WAKE-UP signal for a ti...	09/02/2003
6549605	Limiting loss in a circuit A circuit for limiting loss in a second circuit. The circuit may include a first timer, a second timer and one or more logic gates. The first timer may produce a first output in a given state if the duration of a pulse for use with the second circuit reac...	04/15/2003
6529057	Stretching, shortening, and/or removing a clock cycle A method and apparatus for stretching and/or shortening a clock cycle uses a multiplexor stage, in which a multiplexor switches between a normal clock signal and a delayed clock signal. Further, a method and apparatus for generating a plurality of stretch...	03/04/2003
6483362	Pulse generator First and second pulse train generating units each generates first and second pulse trains each having a positive polarity and a negative polarity corresponding to one and other polarity elements among positive and negative polarity elements which configu...	11/19/2002
6456133	Duty cycle control loop An output circuit generates an output signal. The output signal has a duty cycle from an input signal. A level extractor couple to the output circuit to extract a direct current (DC) level from the output signal. The DC level is a representative of the du...	09/24/2002
6411145	Feedback control of clock duty cycle A circuit configured to correct a duty cycle error or vary the duty cycle of a clock signal. The circuit includes a differential amplifier or control circuit that receives differential signal inputs. At least one differential pair of transistors is connec...	06/25/2002
6407596	Apparatus and method for a clock period subdivider An electronic circuit generates additional clock edges from a reference clock signal utilizing switch-capacitor techniques. The electronic circuit includes a first capacitance circuit and a second capacitance circuit separated by a switch. During a first ...	06/18/2002
6392460	Drive circuit for tattoo machine which provides improved operator control A circuit for providing a pulsed signal to a driven device such as a tattoo imprinting machine wherein the pulse width and signal magnitude and frequency are controlled by the operator. A voltage controlled oscillator establishes the signal frequency, a v...	05/21/2002
6252446	Method and electrical circuit for regulating dead time given varying pulse repetition rates A method and an electrical circuit for converting highly structured analog signals arriving with variable pulse frequency into trigger pulses with an electronic circuit that locks the trigger pulses for a specific time, which is referred to as a dead time...	06/26/2001
6249150	Clock signal generator circuit When a sub-clock signal is generated in synchronization with an external main clock signal from the main clock signal and its inverted delay signal, the signal width of the sub-clock signal is constant even when the high level or the low level of the main...	06/19/2001
6211709	Pulse generating apparatus A pulse generating apparatus efficiently generates a pulse signal by receiving a control signal. A voltage level controller 20 receives a control signal and outputs a certain voltage through a node N0. A output level variation element C is placed between ...	04/03/2001
6118390	Apparatus for obtaining a pulse width of an unknown pulse signal An apparatus is provided for processing a pulse signal. The apparatus includes (1) a pulse-shrinking circuit for shrinking a specific quantity of a pulse width of the pulse signal; and (2) a feedback circuit electrically connected to the pulse-shrinking c...	09/12/2000
6081575	Timer circuit with programmable decode circuitry A timer circuit for providing output pulses of an adjustable duration based upon stored decode parameters. The circuit has a timer element which generates a periodic timing signal. Preferably the frequency of the periodic timing signal is also adjustable....	06/27/2000
6002283	Apparatus for generating an asynchronous status flag with defined minimum pulse An asynchronous flag generator for generating an asynchronous flag having a minimum defined active pulse length. The asynchronous flag generator comprises an arbitrary length flag generator for generating an arbitrary length status flag signal from at lea...	12/14/1999
5929684	Feedback pulse generators Feedback pulse generators each have an input and an output, a first digital gating circuit, and a second digital gating circuit. The first digital gating circuit is coupled between the input and the output of the pulse generator, and is responsive to an i...	07/27/1999
5901194	Timer circuit with programmable decode circuitry A timer circuit for providing output pulses of an adjustable duration based upon stored decode parameters. The circuit has a timer element which generates a periodic timing signal. Preferably the frequency of the periodic timing signal is also adjustable....	05/04/1999
5867048	Pulse-width controller for switching regulators A pulse-width controller for a switching regulator is provided. The pulse-width controller is coupled to a bulk regulator in the switching regulator to control the bulk regulator to produce an output voltage in a fixed level and an output current in a des...	02/02/1999
5864251	Method and apparatus for self-resetting logic circuitry A self-resetting logic stage provides for a relatively faster propagation of pulse signals and for relatively less power consumption. For a self-resetting logic stage in a digital logic path of successive logic stages, a forward path creates the forward e...	01/26/1999
5764090	Write-control circuit for high-speed static random-access-memory (SRAM) devices A write-control circuit including a pulse processor and a waveform shifter is disclosed. The pulse processor is provided for processing a first waveform. When the first waveform has a bandwidth wider than a first delay, the waveform goes through the pulse...	06/09/1998

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Class 327/173 - Pulse narrowing