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Class Information
Number: 327/250
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Phase shift by less than period of input > Variable or adjustable > With active time delay element
Description: Subject matter wherein the time required for a signal to travel between two points in a circuit is controlled by an element which requires an external power supply other than the main input signal for its operation.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7205811 |
Methods and apparatus for maintaining desired slope of clock edges in a phase interpolator using an adjustable bias |
Apr. 17, 2007 |
| 7187243 |
Delay circuit |
Mar. 6, 2007 |
| 7184936 |
Timing variation measurement system and method |
Feb. 27, 2007 |
| 7084689 |
Method and apparatus for generating non-skewed complementary signals through interpolation |
Aug. 1, 2006 |
| 7020792 |
Method and apparatus for time domain equalization |
Mar. 28, 2006 |
| 7002390 |
Delay matching for clock distribution in a logic circuit |
Feb. 21, 2006 |
| 6911856 |
Delay matching for clock distribution in a logic circuit |
Jun. 28, 2005 |
| 6166573 |
High resolution delay line |
Dec. 26, 2000 |
| 6049240 |
Logical delaying/advancing circuit used |
Apr. 11, 2000 |
| 5986491 |
Clock signal generator |
Nov. 16, 1999 |
| 5825226 |
Delay equalization apparatus and method |
Oct. 20, 1998 |
| 5808497 |
Digital phase shifter |
Sep. 15, 1998 |
| 5784272 |
Control system for a process that exhibits periodic disturbances |
Jul. 21, 1998 |
| 5654659 |
Scan circuit having a reduced clock signal delay |
Aug. 5, 1997 |
| 5646564 |
Phase-locked delay loop for clock correction |
Jul. 8, 1997 |
| 5485128 |
Oscillation circuit having a current-controlled phase shift circuit |
Jan. 16, 1996 |
| 5471165 |
Signal processing circuit and a method of delaying a binary periodic input signal |
Nov. 28, 1995 |
| 5459402 |
Delay time measuring circuit |
Oct. 17, 1995 |
| 5440514 |
Write control for a memory using a delay locked loop |
Aug. 8, 1995 |
| 5223755 |
Extended frequency range variable delay locked loop for clock synchronization |
Jun. 29, 1993 |
| 5221863 |
Phase-locked loop clock signal generator |
Jun. 22, 1993 |
| 5218314 |
High resolution, multi-frequency digital phase-locked loop |
Jun. 8, 1993 |
| 5216302 |
Reference delay generator and electronic device using the same |
Jun. 1, 1993 |
| 5204559 |
Method and apparatus for controlling clock skew |
Apr. 20, 1993 |
| 5191295 |
Phase shift vernier for automatic test systems |
Mar. 2, 1993 |
| 5173617 |
Digital phase lock clock generator without local oscillator |
Dec. 22, 1992 |
| 5164677 |
Method and apparatus for synchronizing signals |
Nov. 17, 1992 |
| 5150068 |
Clock signal supply method and system |
Sep. 22, 1992 |
| 5148113 |
Clock phase alignment |
Sep. 15, 1992 |
| 5146478 |
Method and apparatus for receiving a binary digital signal |
Sep. 8, 1992 |
| 5124656 |
Adaptive estimation of phase or delay for both leading and lagging phase shifts |
Jun. 23, 1992 |
| 5118975 |
Digital clock buffer circuit providing controllable delay |
Jun. 2, 1992 |
| 5105108 |
Delay circuit with phase locked loop control |
Apr. 14, 1992 |
| 5101117 |
Variable delay line phase-locked loop circuit synchronization system |
Mar. 31, 1992 |
| 5087829 |
High speed clock distribution system |
Feb. 11, 1992 |
| 5086236 |
Synchronizing circuit of two clock signals |
Feb. 4, 1992 |
| 5066868 |
Apparatus for generating phase shifted clock signals |
Nov. 19, 1991 |
| 5059838 |
Signal delay circuit using charge pump circuit |
Oct. 22, 1991 |
| 5043596 |
Clock signal supplying device having a phase compensation circuit |
Aug. 27, 1991 |
| 4985639 |
Logic edge timing generation |
Jan. 15, 1991 |
| 4954784 |
Phase adjustment circuit |
Sep. 4, 1990 |
| 4922141 |
Phase-locked loop delay line |
May. 1, 1990 |
| 4859954 |
Clock phase adjusting system |
Aug. 22, 1989 |
| 4795985 |
Digital phase lock loop |
Jan. 3, 1989 |
| 4780681 |
Digital phase locked loop using fixed frequency oscillator and simulated time-shifting |
Oct. 25, 1988 |
| 4746819 |
Phase shifting circuit for pulse signals |
May. 24, 1988 |
| 4739277 |
Triggered, programmable skew signal generator |
Apr. 19, 1988 |
| 4737724 |
Variable digital phase-shifter and digital velocity corrector for use in video recorders |
Apr. 12, 1988 |
| 4700347 |
Digital phase adjustment |
Oct. 13, 1987 |
| 4679064 |
Circuit for changeable prolongation of the running time of an ultrasound delay line |
Jul. 7, 1987 |
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