Athletic timer correction system

• US 5,130,955 A
• Filed: 06/27/1991
• Issued: 07/14/1992
• Est. Priority Date: 12/11/1990
• Status: Expired due to Fees

• Current Assignee: David E. Mitchell, Dean Luerker
• Original Assignee: David E. Mitchell, Dean Luerker
• Inventors: Mitchell, David E., Luerker, Dean
• Primary Examiner(s): Heyman, John S.
• Application Number:
  US07/722,208
• Time in Patent Office: 383 Days
• Field of Search: 368/1, 368/2, 368/3, 368/9, 368/10, 368/107, 368/110, 368/111, 368/112, 368/113, 368/89, 364/569, 377/20, 377/24.2, 377/5, 377/112, 434/254
• US Class Current: 368/3
• CPC Class Codes: G04F 10/00 Apparatus for measuring unknown time intervals by electric means
• CPC Class Codes: G04F 8/08 Means used apart from the time-piece for starting or stopping same

Abstract

A swim/sporting event timer/counter times a athlete moveing along a predetermined path based on signals received from the athlete. A time counter begins when movement of the athlete is detected. Based upon the amount of time it takes for the athlete to pass by the timing system, the time counter is automatically adjusted, if necessary, to account for the time counter having been started at an incorrect time.

Claims

1. A timing system for timing a moving object comprising:

a timer capable of storing an elapsed time,

means for starting the timer,

non-contact detecting means for detecting when the moving object passes by the detecting means,

timer adjustment means for automatically adjusting elapsed time stored by the timer based upon the time interval between when the timer starts and when the object passes by the detecting means.

2. The timing system of claim 1 wherein the adjustment means adds a predetermined amount of time to the timer based upon the elapsed time between when the timer starts and when the object passes by the detecting means.

3. The timing system of claim 1 wherein the timing system further comprises:

a waterproof, submersible housing comprising at least one upwardly projecting visual display observable by a downwardly facing swimmer, and an internal power source.

4. The timing system of claim 1 wherein the non-contact detecting means comprises

first and second receivers capable of detecting a signal, the receivers being spaced from each other, and

comparing means for determining the time differential between the times the signal reaches the first and second receivers.

5. The timing system of claim 1 wherein the timer adjustment means is responsive to at least a first time threshold and a second time threshold, and adjusts the timer means by a different amount based on whether the time interval is below the first time threshold, between the first and second time thresholds, or above the second time threshold.

6. A method of correcting a measured time for a moving object to move past an object detecting means, comprising the steps of:

providing a timer capable of storing an elapsed time, the timer comprising, means for starting the timer, and non-contact detecting means for detecting a moving object passing by the detecting means,

starting the timer,

determining the time interval between when the timer is started and when the moving object moves past the non-contact detecting means,

adjusting the elapsed time stored by the timer by adding a predetermined time count to the elapsed time based upon the time interval.

7. The method of correcting a measured time for a moving object to move past an object detecting means of claim 6, wherein the timer comprises:

a waterproof, submersible housing comprising at least one upwardly projecting visual display observable by a downwardly facing swimmer, and an internal power source.

8. The method of correcting a measured time for a moving object to move past an object detecting means of claim 6, wherein the timer comprises:

first and second receivers capable of detecting a signal, the receivers being spaced from each other, and

comparing means for determining the time differential between the times the signal reaches the first and second receivers.

9. The method of correcting a measured time for a moving object to move past an object detecting means of claim 6, further comprising:

providing a first time threshold and a second time threshold,

and wherein the time count added to the elapsed time stored by the timer is determined by whether the elapsed time is below the first time threshold, between the first and second time threshold, or above the second time threshold.

10. A method of correcting a measured time for a moving object to move past an object detecting means, comprising the steps of:

providing a timer capable of storing an elapsed time, the timer comprising, means for starting the timer, and non-contact detecting means for detecting a moving object passing by the detecting means,

starting the timer,

determining the time interval between when the timer is started and when the moving object moves past the non-contact detecting means,

adjusting the elapsed time stored by the timer by replacing the time with a predetermined time value based upon the time interval.

11. The method of correcting a measured time for a moving object to move past an object detecting means of claim 10, wherein the timer comprises:

a waterproof, submersible housing comprising at least one upwardly projecting visual display observable by a downwardly facing swimmer, and an internal power source.

12. The method of correcting a measured time for a moving object to move past an object detecting means of claim 10, wherein the timer comprises:

first and second receivers capable of detecting a signal, the receivers being spaced from each other, and

comparing means for determining the time differential between the times the signal reaches the first and second receivers.

13. The method of correcting a measured time for a moving object to move past an object detecting means of claim 10, further comprising:

providing a first time threshold and a second time threshold,

and wherein the time value used to replace the elapsed time is determined by whether the elapsed time is below the first time threshold, between the first and second time threshold, or above the second time threshold.