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Class Information
Number: 473/467
Name: Games using tangible projectile > Playing field or court game; game element or accessory therefor other than projector or projectile, per se > Having at least two different types of game elements used in same game > Having boundary detector (e.g., ball-out-of-bounds detector for tennis court, etc.)
Description: Playing field or court game wherein one of the game components is or comprises means for detecting the location of a moving game component or a player relative to (a) a peripheral boundary of a playing field or court, or (b) a structure (e.g., a net, etc.) or a visually or otherwise sensory distinct means which breaks the playing area into compartments, subareas, or sections.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7369038 |
Automated detection system for sports fields and the like |
May. 6, 2008 |
| 6661342 |
System and method for using impulse radio technology to track the movement of athletes and to enable secure communications between the athletes and their teammates, fans or coaches |
Dec. 9, 2003 |
| 6634967 |
Baseball umpiring system |
Oct. 21, 2003 |
| 6270433 |
Player position detection system |
Aug. 7, 2001 |
| 6135456 |
Target apparatus and methods for playing new target games |
Oct. 24, 2000 |
| 6024658 |
Game ball monitoring method and apparatus |
Feb. 15, 2000 |
| 5976038 |
Apparatus for detecting moving ball |
Nov. 2, 1999 |
| 5954599 |
Automated sport boundary officiating system |
Sep. 21, 1999 |
| 5954308 |
Volleyball net clamps |
Sep. 21, 1999 |
| 5908361 |
Automated tennis line calling system |
Jun. 1, 1999 |
| 5800292 |
Tennis court boundary detection system |
Sep. 1, 1998 |
| 5672128 |
Electronic automated game line |
Sep. 30, 1997 |
| 5585778 |
Device for detecting net faults in tennis |
Dec. 17, 1996 |
| 5489886 |
Automatic line officiating system and method thereof |
Feb. 6, 1996 |
| 5394824 |
Thermochromic sensor for locating an area of contact |
Mar. 7, 1995 |
| 5348309 |
Sport net |
Sep. 20, 1994 |
| 5342042 |
Ball location system |
Aug. 30, 1994 |
| 5303915 |
Tennis ball to line location |
Apr. 19, 1994 |
| 5150895 |
Method of and system for determining a position of ball relative to a playing field, and ball provided therefor |
Sep. 29, 1992 |
| 5138322 |
Method and apparatus for radar measurement of ball in play |
Aug. 11, 1992 |
| 5082263 |
Method of and system for determining position of tennis ball relative to tennis court, and tennis ball provided therefor |
Jan. 21, 1992 |
| 5059944 |
Tennis court boundary sensor |
Oct. 22, 1991 |
| 4867449 |
Electrically operated line monitor for tennis |
Sep. 19, 1989 |
| 4866414 |
Optoelectronic lawn tennis linesman system |
Sep. 12, 1989 |
| 4859986 |
Object touchdown and net contact detection systems and game apparatus employing same |
Aug. 22, 1989 |
| 4855711 |
Impact detection apparatus |
Aug. 8, 1989 |
| 4840377 |
Electrical tape boundary sensor apparatus |
Jun. 20, 1989 |
| RE32842 |
Arbitration of tennis by change of colors |
Jan. 24, 1989 |
| 4718669 |
Electrically operated line monitor for tennis |
Jan. 12, 1988 |
| 4664376 |
Line fault detector |
May. 12, 1987 |
| 4538811 |
Arbitration of tennis by change of colors |
Sep. 3, 1985 |
| 4528548 |
Validity signal apparatus for monitoring a line boundary |
Jul. 9, 1985 |
| 4432058 |
Micro-computer network systems for making and using automatic line-call decisions in tennis |
Feb. 14, 1984 |
| 4422647 |
Volleyball out of bounds detecting and indicating system |
Dec. 27, 1983 |
| 4375289 |
Apparatus for monitoring a boundary line |
Mar. 1, 1983 |
| 4365805 |
System for monitoring tennis court boundary lines |
Dec. 28, 1982 |
| 4109911 |
Gaming surface contact detecting systems |
Aug. 29, 1978 |
| 4092634 |
Electric indicator system for ball games |
May. 30, 1978 |
| 4081798 |
Let-ball detectors |
Mar. 28, 1978 |
| 4004805 |
Electronic line monitoring system for a tennis court |
Jan. 25, 1977 |
| 3982759 |
Tennis court line monitoring apparatus |
Sep. 28, 1976 |
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