US4675816A — Electronic method of locating a football

Claim 1

Independent Claim 233 words

A method for determining on a football field whether an offensive team has successfully gained the ten yards necessary to achieve first down status; to provide accurate football location information for fans, game officials and television; and to facilitate football positioning on the playing field comprising the steps of: (1) positioning at the nose of a football a radio transmitter; (2) transmitting from said radio transmitter radio waves toward multiple receiving rotating antennas; (3) automatically aiming said antennas directly at the said radio transmitter so that the said radio waves represent precise angular directional signals to be used in calculating the position of the radio transmitter and the football on the football field; (4) providing said angular directional signals to a microprocessor that has been programmed to calculate the position of the transmitter and football on the football field; (5) calculating by triangulation an accurate positioning of the transmitter and football on the football field, where the calculating step particularly includes the step of determining the longitudinal yardage position of the football on the field; (6) providing the results of said calculating step to remote display units for fans and television audience; and (7) further providing said calculating step results to a control unit for use by said officials, where said control unit is capable of either receiving information from the microprocessor or from manually input information indicating ball position or down number.

Claim 2

Independent Claim 233 words

A method for determining on a football field whether an offensive team has successfully gained the ten yards necessary to achieve first down status; to provide accurate football location information for fans, game officials and television; and to facilitate football positioning on the playing field comprising the steps of: (1) positioning at the nose of a football a radio transmitter; (2) transmitting from said radio transmitter radio waves toward multiple receiving rotating antennas; (3) automatically aiming said antennas directly at the said radio transmitter so that the said radio waves represent precise angular directional signals to be used in calculating the position of the radio transmitter and the football on the football field; (4) providing said angular directional signals to a microprocessor that has been programmed to calculate the position of the transmitter and football on the football field; (5) calculating by triangulation an accurate positioning of the transmitter and football on the football field, where the calculating step particularly includes the step of determining the longitudinal yardage position of the football on the field; (6) providing the results of said calculating step to remote display units for fans and television audience; and (7) further providing said calculating step results to a control unit for use by said officials, where said control unit is capable of either receiving information from the microprocessor or from manually input information indicating ball position or down number.

Claim 3

Dependent Claim 147 words

The method according to claim 1 where the said control unit is designed and programmed to acknowledge the positioning data received from the said microprocessor, said method further comprising the step of displaying to sideline officials the exact position of the football and the number of yards to go for the next first down, said displaying step also including the displaying of the position of the football when the first down for the series of plays in progress was initiated, with all displays accomplished by this displaying step displayed in a digital manner and with the control unit capable of being overridden by the operator by said operator switching from an automated mode to a manual mode where said manual mode allows adjustments to the data received from said microprocessor to allow for unforseen circumstances, changes resulting from official decisions or from data distorted through manual input.

Claim 4

Dependent Claim 69 words

The method according to claim 2, where said displaying step is accomplished by a digital display board that is designed and programmed to accept information from said microprocessor and display it digitally on a scoreboard television monitor, or any other visual display system adapted to receive said data representing said position of the football and data representing said down number and the yards to go for the first down.

Claim 5

Dependent Claim 153 words

The method of claim 1 further comprising the steps of: (8) monitoring the functions of the control unit; (9) establishing a data bank containing statistics for all segments of the game including but not limited to total yards gained or lost rushing, total yards gained or lost passing, kicking yardage, total number of first downs, total number of third down attempts, total number of third down attempts that were successful or unsuccessful, and other pertinent data that can be displayed on demand for the enlightment and enjoyment of the game crowd, the television viewing public, television announcers, official scorers and others where said data bank is updated continuously as the game progresses and where said microprocessor is programmed to extract from said data bank a summary of all the statistics for analysis at half-time and at the end of the game and where said monitoring and establishing steps are accomplished by said microprocessor.

Claim 6

Dependent Claim 130 words

The method as claimed in claim 1 where said method includes the step of assisting said game officials in making the correct adjustment to the position of the football for the various penalties assessed during the game where said correct adjustment is made according to a particular rule covering each of said various penalties, where each rule is assigned a particular code that is manually input into the control unit when a penalty occurs, where said correct adjustment is calculated based upon said manually input code and said correct adjustment is made by said game officials after the correct position of the football is displayed automatically and in response to audible or visual signals which inform the said game officials as to the correctness of the placement of the football.

Claim 7

Dependent Claim 46 words

The method of claim 1, where the components which perform the method are continuously checked by a functionally independent back up arrangement which adjusts said components as necessary and where said back up arrangement stands ready to take over instantaneously should any of said components fail.

Claim 8

Dependent Claim 65 words

The method of claim 1 where the equipment designed to carry out said method will do so under any and all climatic conditions such as, but not limited to, snow, sleet, rain, hail, wind and mud which may occur before or during a football game, where said equipment contains design features including, but not limited to moisture protection and shock proof electronic and electrical components.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1990-06-22	1990-12-22	1991-06-23	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1994-06-22	1994-12-22	1995-06-23	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1998-06-22	1998-12-22	1999-06-23	$7700.00	Window Closed / Lapsed

Electronic method of locating a football

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