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Class Information
Number: 327/170
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Slope control of leading or trailing edge of rectangular (e.g., clock, etc.) or pulse waveform
Description: Subject matter wherein the rise time or fall time of a pulse is maintained constant or regulated in some manner.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7629823 |
Method and apparatus for pulse width modulation |
Dec. 8, 2009 |
| 7622972 |
System and apparatus for generating ideal rise and fall time |
Nov. 24, 2009 |
| 7598784 |
System and method for controlling signal transitions |
Oct. 6, 2009 |
| 7598785 |
Apparatus and method for adjusting slew rate in semiconductor memory device |
Oct. 6, 2009 |
| 7595674 |
Universal serial bus (USB) driver circuit, system, and method |
Sep. 29, 2009 |
| 7589554 |
I/O interface circuit of intergrated circuit |
Sep. 15, 2009 |
| 7583460 |
Edge controlled fast data pattern generator |
Sep. 1, 2009 |
| 7576581 |
Circuit and method for correcting duty cycle |
Aug. 18, 2009 |
| 7567105 |
High speed controller area network receiver having improved EMI immunity |
Jul. 28, 2009 |
| 7557603 |
Method and apparatus for output driver calibration, and memory devices and system embodying same |
Jul. 7, 2009 |
| 7554385 |
Charge pump circuit and electric appliance therewith |
Jun. 30, 2009 |
| 7550993 |
Glitch reduced compensated circuits and methods for using such |
Jun. 23, 2009 |
| 7548086 |
Impedance control circuit in semiconductor device and impedance control method |
Jun. 16, 2009 |
| 7545175 |
Slew rate controlled digital output buffer without resistors |
Jun. 9, 2009 |
| 7538586 |
Transmitter for a controlled-shape switched signal on a communication line |
May. 26, 2009 |
| 7521975 |
Output buffer with slew rate control utilizing an inverse process dependent current reference |
Apr. 21, 2009 |
| 7518424 |
Slew rate controlled output circuit |
Apr. 14, 2009 |
| 7518335 |
Method and apparatus for PWM control of voltage source inverter to minimize current sampling errors in electric drives |
Apr. 14, 2009 |
| 7514963 |
Semiconductor integrated circuit device |
Apr. 7, 2009 |
| 7498844 |
Output driver for dynamic random access memory |
Mar. 3, 2009 |
| 7498853 |
Skew-reducing signal line sub-driver circuits, methods and systems |
Mar. 3, 2009 |
| 7482845 |
Output buffer circuit |
Jan. 27, 2009 |
| 7477081 |
Pre-driver circuit and data output circuit using the same |
Jan. 13, 2009 |
| 7474135 |
Circuit for differential signals |
Jan. 6, 2009 |
| 7466176 |
Voltage regulator for microelectronic devices using dual edge pulse width modulated control signal |
Dec. 16, 2008 |
| 7449913 |
Pre-driver having slew-rate and crowbar-current controls for a CMOS output buffer |
Nov. 11, 2008 |
| 7449936 |
Open-loop slew-rate controlled output driver |
Nov. 11, 2008 |
| 7446576 |
Output driver with slew rate control |
Nov. 4, 2008 |
| 7425849 |
Low noise output buffer capable of operating at high speeds |
Sep. 16, 2008 |
| 7424046 |
Spread spectrum clock signal generation system and method |
Sep. 9, 2008 |
| 7417473 |
Signal generator including current control element and signal forming element for achieving low noise level and low switching loss |
Aug. 26, 2008 |
| 7394298 |
Stepwise drivers for DC/DC converters |
Jul. 1, 2008 |
| 7378878 |
Driver circuit having programmable slew rate |
May. 27, 2008 |
| 7365584 |
Slew-rate control apparatus and methods for a power transistor to reduce voltage transients during inductive flyback |
Apr. 29, 2008 |
| 7365585 |
Apparatus and method for charge pump slew rate control |
Apr. 29, 2008 |
| 7362147 |
Integrated circuit |
Apr. 22, 2008 |
| 7355453 |
Techniques for trimming drive current in output drivers |
Apr. 8, 2008 |
| 7348812 |
Multiphased triangular wave oscillating circuit and switching regulator using it |
Mar. 25, 2008 |
| RE40168 |
Low power circuit with proper slew rate by automatic adjustment of bias current |
Mar. 25, 2008 |
| 7345516 |
Apparatus and method for adjusting slew rate in semiconductor memory device |
Mar. 18, 2008 |
| 7339409 |
Slew rate controlled output driver for use in semiconductor device |
Mar. 4, 2008 |
| 7312626 |
CMOS circuits with reduced crowbar current |
Dec. 25, 2007 |
| 7312637 |
Enhanced timing margin memory interface |
Dec. 25, 2007 |
| 7312646 |
Method and apparatus for controlling switching transients |
Dec. 25, 2007 |
| 7295054 |
Buffer capable of controlling slew rate in drive IC |
Nov. 13, 2007 |
| 7292073 |
Transmission line driver circuit |
Nov. 6, 2007 |
| 7288958 |
Slew rate calibrating circuit and slew rate calibrating method |
Oct. 30, 2007 |
| 7282968 |
Data output driver and semiconductor memory device having the same |
Oct. 16, 2007 |
| 7274241 |
Global closed loop control system with DV/DT control and EMI/switching loss reduction |
Sep. 25, 2007 |
| 7259603 |
Switch mode power converter |
Aug. 21, 2007 |
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