| Patents for G04F 10 - Apparatus for measuring unknown time intervals by electric means (2,136) |
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| 06/09/1992 | US5121367 Game trail monitoring device |
| 06/02/1992 | US5119347 Method and timing device for measuring time intervals |
| 05/20/1992 | EP0485705A2 Telemetric device for measuring the duration of a period |
| 04/29/1992 | EP0482087A1 Device for measuring the time which a removable medical device has been in place. |
| 04/15/1992 | EP0480208A2 Test system timer |
| 04/14/1992 | US5105395 Method of and apparatus for ascertaining the times of participants in races and other contests |
| 04/12/1992 | CA2051581A1 Test system timer |
| 04/07/1992 | US5103433 Method of ascertaining the times of participants in races and other contests |
| 04/07/1992 | US5102220 Pulse delay measuring circuit |
| 03/05/1992 | WO1992003768A1 Racecar timing and track condition alert system and method |
| 02/25/1992 | US5091870 Apparatus for measuring the speed of transmission of digital characters |
| 02/13/1992 | DE4036107C1 Telemetry period duration measuring procedure - transferring counter result with coded measuring period count to telemetry receiver |
| 02/11/1992 | US5088072 Sport counting and timing device |
| 01/29/1992 | CN1058185A Parking time display device equipped in vehicle with motor |
| 01/15/1992 | EP0466314A2 Parking time display device |
| 12/24/1991 | US5075878 High resolution measuring device for time difference |
| 12/04/1991 | EP0459443A2 Sport counting and timing device |
| 11/28/1991 | WO1991018331A1 Digital time measuring device and method |
| 11/19/1991 | US5066121 Method and apparatus for measuring the flash duration of a flash unit |
| 10/15/1991 | US5058085 Resettable chronometer having biologically personal utility |
| 10/15/1991 | US5058050 Timer unit and data processing apparatus including the same |
| 09/12/1991 | DE3546702C2 Electronic watch with chronograph system and two driving motors - has motor operating second hand for indication of normal and chronographic time and second motor for minute and hour hands |
| 09/10/1991 | US5047967 Digital front end for time measurement and generation of electrical signals |
| 07/31/1991 | EP0439178A1 Pulse phase difference encoding circuit |
| 07/31/1991 | CN2081990U Timer of electric spark |
| 07/10/1991 | EP0436371A2 Antimetastable state circuit |
| 07/04/1991 | DE4017021A1 Ultrasound signal start definition circuitry - forms propagation time and period duration signals using two voltage comparators of differing thresholds |
| 07/03/1991 | EP0435055A1 Time-measuring device for vehicles |
| 07/02/1991 | CA1285396C Race stopwatch with plural displays and operating modes |
| 06/27/1991 | CA2032913A1 Arrangement for timing moving objects |
| 06/25/1991 | US5027298 Low-dead-time interval timer |
| 06/19/1991 | EP0432352A2 Method and device for determining the time between start and finish of athletes or suchlike |
| 06/11/1991 | US5023848 Solder wave dwell timer |
| 05/28/1991 | US5020038 Antimetastable state circuit |
| 05/22/1991 | EP0427969A2 Pulse time of flight measurement device |
| 05/08/1991 | EP0425749A1 Timing relay |
| 05/08/1991 | CN1051252A Precise electronic dotted timer |
| 05/02/1991 | EP0425080A2 Method and digital data acquisition instrument with a counter/timer for time intervals, in particular in a logic analyzer |
| 04/09/1991 | US5007035 Distance pulse averaging unit |
| 03/27/1991 | EP0418499A2 Time interval triggering and hardware histogram generation |
| 03/20/1991 | EP0417547A2 Means for obtaining the exact limits of a time interval related to a clock reference |
| 03/19/1991 | US5001683 Inter-pulse time difference measuring circuit |
| 03/12/1991 | CA2024878A1 Arrangement for the precise electronic determination of the limits of a time interval relative to reference clock pulse |
| 02/26/1991 | US4996474 Digital gate generation for a signal measurement instrument |
| 02/19/1991 | US4995019 Time period measuring apparatus with adaptive averaging |
| 02/12/1991 | US4993004 Portable |
| 02/04/1991 | CA2008270A1 Hour meter |
| 01/24/1991 | DE3923349A1 Ascertaining reception time of ultrasonic signal - using electroacoustic transducer at receiving point to provide electric signal for regulator comparing evaluating signal with reference |
| 01/23/1991 | EP0409568A2 Electronic timepiece |
| 01/23/1991 | EP0409378A2 Digital front end for time measurement and generation of electrical signals |
| 01/19/1991 | WO1991001535A1 Device for measuring the time which a removable medical device has been in place |
| 01/19/1991 | CA2063376A1 Device for measuring the time which a removable medical device has been in place |
| 01/08/1991 | US4983924 Trigger circuit |
| 01/01/1991 | US4982350 System for precise measurement of time intervals |
| 12/27/1990 | CA1278194C Operational timer circuit for monitoring a motor under load |
| 12/19/1990 | EP0403093A2 Method and apparatus for synchronized sweeping of multiple instruments |
| 12/18/1990 | US4979177 Enhanced counter/timer resolution in a logic analyzer |
| 11/20/1990 | US4972333 Time internal measuring apparatus and method for a revolution sensor |
| 11/16/1990 | CA2054746A1 Timing apparatus particularly for racing vehicles |
| 11/06/1990 | US4969113 Method and apparatus for measuring sensor output |
| 10/03/1990 | CN1045874A Timing tester |
| 09/20/1990 | DE3908424A1 Circuit arrangement for measuring times |
| 09/18/1990 | US4958362 Clock signal generating circuit |
| 09/11/1990 | US4956825 Device for monitoring the rate of use of an electrical appliance |
| 07/18/1990 | CN1008835B Method of phase-opening time counting and its equipments |
| 07/17/1990 | US4942561 Delay time measuring device |
| 07/10/1990 | US4941136 Programmable hour meter for recording elapsed operation time |
| 06/26/1990 | US4937780 Single instruction updating of processing time field using software invisible working registers |
| 05/03/1990 | WO1990004814A1 Event clock with automatic daylight saving adjustment |
| 04/19/1990 | WO1990004219A1 Circuit arrangement for digitally recording analog information, in particular the time interval between two consecutive states of a signal |
| 04/17/1990 | US4918630 Computer timing system having backup trigger switches for timing competitive events |
| 04/10/1990 | US4916677 Automatic period and frequency measurements |
| 04/03/1990 | US4914640 Signal processing device |
| 03/27/1990 | US4912734 High resolution event occurrance time counter |
| 03/27/1990 | US4912687 Time of tip-over indicator |
| 03/21/1990 | EP0358887A2 Error detection circuit for a measuring device |
| 03/14/1990 | EP0357822A1 Method and apparatus for measuring the time difference between pulses |
| 03/13/1990 | US4908784 Method and apparatus for asynchronous time measurement |
| 02/20/1990 | US4902963 Method and arrangement for recording periodic signals with a laser probe |
| 02/13/1990 | US4901294 Electronic time measuring apparatus including acoustic data recording/reproducing functions |
| 01/03/1990 | EP0348900A2 Delay time measuring device |
| 01/03/1990 | EP0348898A2 High resolution measuring device for time difference |
| 01/03/1990 | CN1038515A Multipurpose measurer of accumulated time error and its measuring method |
| 12/28/1989 | DE3820915A1 Chess clock with a digital display |
| 11/07/1989 | US4879700 Method and apparatus for determining the time between two signals |
| 10/17/1989 | US4875201 Electronic pulse time measurement apparatus |
| 09/27/1989 | EP0334698A2 Dead time compensated control loop |
| 09/27/1989 | CN2045129U Timing checker |
| 09/26/1989 | US4870629 Method for electronic calibration of a voltage-to-time converter |
| 09/26/1989 | US4870603 System of improving signal-to-noise ratio of detected random pulses |
| 09/08/1989 | WO1989008301A1 Timing system |
| 08/15/1989 | US4858208 Apparatus and method for testing semiconductor devices |
| 08/15/1989 | US4857886 Timing system |
| 08/15/1989 | CA1258522A1 Apparatus for timing sporting events |
| 08/09/1989 | EP0326858A1 Method and apparatus for displaying periodical signals using a laser probe |
| 08/08/1989 | US4855970 Time interval measurement apparatus |
| 08/08/1989 | US4855968 Time interval measurement system for analog oscilloscope |
| 08/08/1989 | US4855658 Dead time compensated control loop |
| 08/01/1989 | USH666 Circuit for measuring absolute time lapse between impact and detonation |
| 07/18/1989 | US4849644 Optoelectric distance measuring apparatus with delay and zero cross detector |