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Class Information
Number: 968/844
Name: Horology > Apparatus for measuring unknown time intervals by electric means (timing devices for clocks or watches for comparing the rate of the oscillating member with a standard subclass 769; radar systems, analogous systems g01s 9/00; measuring frequency g01r 23/00; measuring phase angle g01r 25/00) [g04f 10/00]
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6246737 |
Apparatus for measuring intervals between signal edges |
Jun. 12, 2001 |
| 5861818 |
Radio paging selective receiver with display for notifying presence of unread message based on time of receipt |
Jan. 19, 1999 |
| 4918630 |
Computer timing system having backup trigger switches for timing competitive events |
Apr. 17, 1990 |
| 4912687 |
Time of tip-over indicator |
Mar. 27, 1990 |
| 4902963 |
Method and arrangement for recording periodic signals with a laser probe |
Feb. 20, 1990 |
| 4879700 |
Method and apparatus for determining the time between two signals |
Nov. 7, 1989 |
| 4875201 |
Electronic pulse time measurement apparatus |
Oct. 17, 1989 |
| 4870603 |
System of improving signal-to-noise ratio of detected random pulses |
Sep. 26, 1989 |
| 4858208 |
Apparatus and method for testing semiconductor devices |
Aug. 15, 1989 |
| 4855970 |
Time interval measurement apparatus |
Aug. 8, 1989 |
| 4849644 |
Optoelectric distance measuring apparatus with delay and zero cross detector |
Jul. 18, 1989 |
| 4845690 |
Multiple screen ballistic chronograph |
Jul. 4, 1989 |
| 4841497 |
Digital time base with corrected analog interpolation |
Jun. 20, 1989 |
| 4797679 |
Radio direction-finding using time of arrival measurements |
Jan. 10, 1989 |
| 4775244 |
Method and apparatus for measurement of pulse width of very short pulses |
Oct. 4, 1988 |
| 4736351 |
Precision semiconductor device timer |
Apr. 5, 1988 |
| 4734587 |
Optoelectric distance measuring apparatus with a time discriminator for the accurate detection of electric pulse sequence |
Mar. 29, 1988 |
| 4719608 |
Ultra high-speed time-to-digital converter |
Jan. 12, 1988 |
| 4712061 |
Small propagation delay measurement for digital logic |
Dec. 8, 1987 |
| 4688947 |
Method and apparatus for characterizing propagation delays of integrated circuit devices |
Aug. 25, 1987 |
| 4677580 |
Real time usage indicator for a processor system |
Jun. 30, 1987 |
| 4676660 |
Method and apparatus for generating a timing signal in a time-of-arrival detection system |
Jun. 30, 1987 |
| 4640624 |
Time computer and display device |
Feb. 3, 1987 |
| 4627268 |
Method for calibrating instruments for time interval measurements |
Dec. 9, 1986 |
| 4613951 |
Time interval measuring apparatus and method |
Sep. 23, 1986 |
| 4610549 |
Method and apparatus for generating a timing signal in a time-of-arrival detection system |
Sep. 9, 1986 |
| 4604536 |
Timing circuits |
Aug. 5, 1986 |
| 4600959 |
Tape measuring method |
Jul. 15, 1986 |
| 4598575 |
Timer calibration method and apparatus |
Jul. 8, 1986 |
| 4598375 |
Time measuring circuit |
Jul. 1, 1986 |
| 4584651 |
Process controller with power outage analysis capability |
Apr. 22, 1986 |
| 4569599 |
Method of determining the difference between the transit times of measuring pulse signals and reference pulse signals |
Feb. 11, 1986 |
| 4553836 |
Method and apparatus for electrooptical distance measurement |
Nov. 19, 1985 |
| 4548513 |
Method and apparatus for measuring response time |
Oct. 22, 1985 |
| 4538235 |
Microcomputer retriggerable interval counter |
Aug. 27, 1985 |
| 4527907 |
Method and apparatus for measuring the settling time of an analog signal |
Jul. 9, 1985 |
| 4523289 |
Time interval measuring system |
Jun. 11, 1985 |
| 4518267 |
Mobile event-module |
May. 21, 1985 |
| 4516861 |
High resolution and high accuracy time interval generator |
May. 14, 1985 |
| 4493043 |
Medical timing system for use during pregnancy and method of using same |
Jan. 8, 1985 |
| 4468746 |
Apparatus for determining interval between two events |
Aug. 28, 1984 |
| 4463425 |
Period measurement system |
Jul. 31, 1984 |
| 4451896 |
Electronic chronometer |
May. 29, 1984 |
| 4449830 |
Method and apparatus for measuring elapsed time between an initiating event and a dependent event |
May. 22, 1984 |
| 4445181 |
Meeting cost calculator and/or timer |
Apr. 24, 1984 |
| 4442752 |
Electronic metronome |
Apr. 17, 1984 |
| 4439046 |
Time interpolator |
Mar. 27, 1984 |
| 4433919 |
Differential time interpolator |
Feb. 28, 1984 |
| 4410817 |
Precision time duration detector |
Oct. 18, 1983 |
| 4408297 |
Reduction in maximum time uncertainty of paired time signals |
Oct. 4, 1983 |
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