Dual timing event stopwatch
AssigneeReinhold R. Rose
InventorsReinhold R. Rose, Lance J. Lieberman
Life of this patent
Estimating the term…
Abstract
A dual timing event stopwatch incorporates a primary timer triggered by a remote light emission detected by an optical pick-up sensor, and a secondary timer manually triggered by a user-actuated switch. The user may select between a first operating mode wherein both timers are concurrently stopped in their interval counted cycles by a manually operated switch, and a second operating mode wherein the second timer is terminated by the manual switch and the first timer is terminated by a second remote light emission detected by the optical pick-up sensor.
Claims14
A dual timing event stopwatch, comprising:
- first timing means for measuring elapsed time between an applied start signal initiating said measurement and a subsequently applied stop signal terminating said elapsed time measurement;
- first display means associated with said first timing means for displaying said elapsed time measured between said start and stop signals;
- second timing means for measuring elapsed time between an applied start signal initiating said measurement and a subsequently applied stop signal terminating said measurement;
- second display means associated with said second timing means for displaying said elapsed time measured thereby;
- optical pick-up means for detecting a remote light emission and for generating a signal in response thereto, said optical means being connected to said first timing means for initiating said elapsed time measurement;
- switch means connected to said second timing means for providing thereto a measurement initiating start signal on a first actuation of said switch means and a measurement terminating stop signal on a second actuation thereof;
- and
- mode selection means associated with said first timing means and operable for user selection between a first operating mode wherein the stop signal for terminating elapsed time measurement by said first timing means is provided on said second actuation of said switch means, and a second operating mode wherein the stop signal for terminating measurement by the first timing means is provided by said optical pick-up means in response to a remote light emission.
A dual timing event stopwatch, comprising:
- first and second timing means each triggerable at an input thereof for initiating and terminating measurement of an elapsed time interval;
- first and second display means, each associated with a respective one of said timing means for indicating the elapsed time interval measured thereby;
- optical pick-up means for detecting a remote light emission and for generating a trigger signal in response thereto, and connected to the input of said first timing means;
- start/stop switch means manually actuatable for generating a trigger signal and connected to said first and second timing means;
- and
- mode selection means for user selection between
- a first operating mode wherein first timing means measurement is initiated by a trigger signal generated by said optical pick-up means, second timing means measurement is initiated by a first trigger signal generating actuation of said start/stop switch means, and both said timing means interval measurements are terminated by a second actuation of said start/stop switch means, and
- a second operating mode wherein first timing means measurement is both initiated and terminated by trigger signals generated by said optical pick-up means in response to the detection of remote light emissions, and second timing means interval measurement is both initiated and terminated by sequential trigger signal generating actuations of said start/stop switch means.
Dependencies are inferred from the claim text.