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Class Information
Number: 327/172
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Rectangular (e.g., clock, etc.) or pulse waveform width control
Description: Subject matter including maintaining constant or varying the length of individual pulses in a pulsating waveform which is repetitive or intermittent and wherein an individual pulse has negligible transition times.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7622973 |
Pulse control device |
Nov. 24, 2009 |
| 7616038 |
Clock modulation circuit for correcting duty ratio and spread spectrum clock generator including the same |
Nov. 10, 2009 |
| 7613944 |
Programmable local clock buffer capable of varying initial settings |
Nov. 3, 2009 |
| 7612592 |
Programmable duty-cycle generator |
Nov. 3, 2009 |
| 7605626 |
Clock generator and clock duty cycle correction method |
Oct. 20, 2009 |
| 7602257 |
Signal generating circuit |
Oct. 13, 2009 |
| 7598786 |
Duty cycle correction circuit and method thereof |
Oct. 6, 2009 |
| 7586349 |
CMOS integrated circuit for correction of duty cycle of clock signal |
Sep. 8, 2009 |
| 7586354 |
Clock pin setting and clock driving circuit |
Sep. 8, 2009 |
| 7583120 |
Power supply controller and method therefor |
Sep. 1, 2009 |
| 7579890 |
Duty detector and duty detection/correction circuit including the same and method thereof |
Aug. 25, 2009 |
| 7576573 |
Wave shaping output driver to adjust slew rate and/or pre-emphasis of an output signal |
Aug. 18, 2009 |
| 7573309 |
Waveform width adjusting circuit with selective control delay |
Aug. 11, 2009 |
| 7567106 |
Duty cycle correction circuit, clock generation circuits, semiconductor devices using the same, and method for generating clock signal |
Jul. 28, 2009 |
| 7557629 |
Pulse stream generator |
Jul. 7, 2009 |
| 7557632 |
Internal clock generator and method of generating internal clock |
Jul. 7, 2009 |
| 7554372 |
Digital dead-time controller for pulse width modulators |
Jun. 30, 2009 |
| 7548099 |
Semiconductor device with delay section |
Jun. 16, 2009 |
| 7545190 |
Parallel multiplexing duty cycle adjustment circuit with programmable range control |
Jun. 9, 2009 |
| 7541852 |
Self-correcting buffer |
Jun. 2, 2009 |
| 7535276 |
Method of forming a PWM controller and structure therefor |
May. 19, 2009 |
| 7532052 |
Clock duty changing apparatus |
May. 12, 2009 |
| 7528640 |
Digital pulse-width control apparatus |
May. 5, 2009 |
| 7525360 |
I/O duty cycle and skew control |
Apr. 28, 2009 |
| 7525357 |
Circuit and method for adjusting a voltage drop |
Apr. 28, 2009 |
| 7525359 |
Duty cycle correction amplification circuit |
Apr. 28, 2009 |
| 7518349 |
Current multiplier/divider-configured feed-forward compensation for buck-mode converter controller with programmed switching frequency |
Apr. 14, 2009 |
| 7518425 |
Circuit and technique for adjusting and accurately controlling clock duty cycles in integrated circuit devices |
Apr. 14, 2009 |
| 7511545 |
Analog duty cycle replicating frequency converter for PWM signals |
Mar. 31, 2009 |
| 7508873 |
Digital amplifier, pulse width modulator thereof and method for reducing pop noise for the same |
Mar. 24, 2009 |
| 7498857 |
Circuit arrangement and method for generating a square wave signal |
Mar. 3, 2009 |
| 7495490 |
Digital amplifier and method thereof |
Feb. 24, 2009 |
| 7496155 |
Duty cycle correction of a multi-gigahertz clock signal with crossover point control |
Feb. 24, 2009 |
| 7495491 |
Inverter based duty cycle correction apparatuses and systems |
Feb. 24, 2009 |
| 7486122 |
Digitized method for generating pulse width modulation signals |
Feb. 3, 2009 |
| 7477084 |
Multi-phase power supply controller and method therefor |
Jan. 13, 2009 |
| 7474162 |
RC-oscillator circuit |
Jan. 6, 2009 |
| 7471125 |
Sawtooth wave generating apparatus, a method of generating sawtooth wave, a constant current circuit, and a method of adjusting amount of current from the same |
Dec. 30, 2008 |
| 7471132 |
Reduced voltage pre-charge multiplexer |
Dec. 30, 2008 |
| 7471133 |
Modulator circuit with linear and non-linear control |
Dec. 30, 2008 |
| 7466176 |
Voltage regulator for microelectronic devices using dual edge pulse width modulated control signal |
Dec. 16, 2008 |
| 7466177 |
Pulse-width control loop for clock with pulse-width ratio within wide range |
Dec. 16, 2008 |
| 7463075 |
Method and delay circuit with accurately controlled duty cycle |
Dec. 9, 2008 |
| 7459951 |
Self-calibrating digital pulse-width modulator (DPWM) |
Dec. 2, 2008 |
| 7459950 |
Pulsed local clock buffer (LCB) characterization ring oscillator |
Dec. 2, 2008 |
| 7456667 |
Electrical signal duty cycle modification |
Nov. 25, 2008 |
| 7456668 |
Pulse width modulation circuit and switching amplifier using the same |
Nov. 25, 2008 |
| 7453298 |
PWM controller and method therefor |
Nov. 18, 2008 |
| 7449932 |
Pulse generating circuit, electronic device using this pulse generating circuit, cellular phone set, personal computer, and information transmitting method using this circuit |
Nov. 11, 2008 |
| 7449931 |
Duty ratio adjustment |
Nov. 11, 2008 |
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