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Class Information
Number: 968/849
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] > By measuring electric or magnetic quantities changing in proportion to time [g04f 10/10]
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4870629 |
Method for electronic calibration of a voltage-to-time converter |
Sep. 26, 1989 |
| 4783755 |
Interval timer circuit |
Nov. 8, 1988 |
| 4775801 |
Electronic timer |
Oct. 4, 1988 |
| 4739279 |
Method and a device for rapid adjustment of the phase of a clock signal in rapid phase |
Apr. 19, 1988 |
| 4637733 |
High-resolution electronic chronometry system |
Jan. 20, 1987 |
| 4527126 |
AC parametric circuit having adjustable delay lock loop |
Jul. 2, 1985 |
| 4523288 |
Interval-expanding timer |
Jun. 11, 1985 |
| 4504155 |
Time-to-voltage converter |
Mar. 12, 1985 |
| 4365320 |
Device for determining the instant of reception of an acoustic wave |
Dec. 21, 1982 |
| 4112358 |
Digital frequency measuring device |
Sep. 5, 1978 |
| 4100490 |
Elapsed time indicator and electrolytic timer cell |
Jul. 11, 1978 |
| 4090141 |
Device for measuring the time interval separating the leading edges of two correlated pulses which have independent amplitudes and rise times |
May. 16, 1978 |
| 4006415 |
Fast reset integrator |
Feb. 1, 1977 |
| 3961258 |
Pulse time interval measuring system |
Jun. 1, 1976 |
| 3937986 |
Linear waveform generator |
Feb. 10, 1976 |
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