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Class Information
Number: 331/143
Name: Oscillators > Relaxation oscillators
Description: Oscillators for generating nonsinusoidal waves which are cyclic in nature and wherein each cycle consists of a period determined by the charging time of a capacitor or inductor followed by a period determined by the discharging time of the capacitor or inductor through a resistive element.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612623 |
Micropower RC oscillator |
Nov. 3, 2009 |
| 7612624 |
Resistor-capacitor oscillation circuit capable of adjusting oscillation frequency and method of the same |
Nov. 3, 2009 |
| 7602258 |
Circuits, systems, and methods for a voltage controlled oscillator with coarse, fine, and center tuning |
Oct. 13, 2009 |
| 7598822 |
Process, supply, and temperature insensitive integrated time reference circuit |
Oct. 6, 2009 |
| 7589569 |
Comparator with self-biased reference voltage for an oscillator |
Sep. 15, 2009 |
| 7579918 |
Clock generator with reduced electromagnetic interference for DC-DC converters |
Aug. 25, 2009 |
| 7557665 |
Temperature tracking oscillator circuit |
Jul. 7, 2009 |
| 7554415 |
Microcomputer including a CR oscillator circuit |
Jun. 30, 2009 |
| 7551041 |
Oscillator and method for operating an oscillator |
Jun. 23, 2009 |
| 7548129 |
On-chip R-C time constant calibration |
Jun. 16, 2009 |
| 7538629 |
Oscillator circuit |
May. 26, 2009 |
| 7528673 |
Oscillator circuit and semiconductor device having oscillator circuit |
May. 5, 2009 |
| 7525394 |
Ultra low power CMOS oscillator for low frequency clock generation |
Apr. 28, 2009 |
| 7515005 |
Variable frequency multi-phase oscillator |
Apr. 7, 2009 |
| 7508729 |
Oscillator circuit generating oscillating signal having stable cycle |
Mar. 24, 2009 |
| 7504900 |
Integrated circuit package including programmable oscillators |
Mar. 17, 2009 |
| 7504902 |
Precision oscillator having linbus capabilities |
Mar. 17, 2009 |
| 7486151 |
Semiconductor circuit for use in timer circuit or oscillator circuit |
Feb. 3, 2009 |
| 7486150 |
Electric circuit and oscillator comprising said electric circuit |
Feb. 3, 2009 |
| 7474162 |
RC-oscillator circuit |
Jan. 6, 2009 |
| 7474163 |
System and method for oscillator noise cancellation |
Jan. 6, 2009 |
| 7443255 |
Oscillator circuit and method for adjusting oscillation frequency of same |
Oct. 28, 2008 |
| 7443254 |
Relaxation oscillator with propagation delay compensation for improving the linearity and maximum frequency |
Oct. 28, 2008 |
| 7439818 |
Voltage-and temperature-compensated RC oscillator circuit |
Oct. 21, 2008 |
| 7420431 |
RC oscillator integrated circuit including capacitor |
Sep. 2, 2008 |
| 7388444 |
Switching regulator duty cycle control in a fixed frequency operation |
Jun. 17, 2008 |
| 7385453 |
Precision oscillator having improved temperature coefficient control |
Jun. 10, 2008 |
| 7375599 |
Analog circuit and method for multiplying clock frequency |
May. 20, 2008 |
| 7348860 |
Triple-input relaxation oscillator with differential controllability |
Mar. 25, 2008 |
| 7342463 |
Timer circuits and method |
Mar. 11, 2008 |
| 7317362 |
Oscillator circuit and oscillation control method |
Jan. 8, 2008 |
| 7280000 |
Apparatus and method for reducing power consumption within an oscillator |
Oct. 9, 2007 |
| 7271670 |
CR oscillation circuit |
Sep. 18, 2007 |
| 7268639 |
Pulse width modulation circuit |
Sep. 11, 2007 |
| 7236061 |
Temperature compensated refresh clock circuit for memory circuits |
Jun. 26, 2007 |
| 7233213 |
Oscillator of semiconductor device |
Jun. 19, 2007 |
| 7227422 |
Temperature compensated R-C oscillator |
Jun. 5, 2007 |
| 7199676 |
Frequency adjustment circuit |
Apr. 3, 2007 |
| 7196589 |
Apparatus and method for dual features of frequency setting and frequency synchronization in one pin |
Mar. 27, 2007 |
| 7187244 |
Digital light ballast oscillator |
Mar. 6, 2007 |
| 7177612 |
Frequency generator and communication system using the same |
Feb. 13, 2007 |
| 7176765 |
Programmable temperature-compensated RC oscillator |
Feb. 13, 2007 |
| 7167060 |
Oscillation circuits including latches for integrated circuit devices and related methods |
Jan. 23, 2007 |
| 7142069 |
Method and circuit arrangement for amplitude regulation of an oscillator signal |
Nov. 28, 2006 |
| 7138880 |
Turbo-charged relaxation oscillator method and apparatus |
Nov. 21, 2006 |
| 7135937 |
Oscillator circuit and integrated circuit incorporating the same |
Nov. 14, 2006 |
| 7132900 |
High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system |
Nov. 7, 2006 |
| 7129798 |
Oscillator circuit having stable frequency |
Oct. 31, 2006 |
| 7123110 |
Low power self refresh timer oscillator |
Oct. 17, 2006 |
| 7123105 |
Oscillator with temperature control |
Oct. 17, 2006 |
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