Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2009-02-10
2011-11-08
Crosland, Donnie (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C340S539100, C340S32300R, C340S407100, C340S309160, C340S007600, C368S001000, C368S010000, C368S244000, C273SDIG026, C273S317300
Reexamination Certificate
active
08054174
ABSTRACT:
A referee's wireless horn indicator system having sensory alerts for aiding a referee in accurately officiating a sports event. The system includes a controller and a sensory receiver. The controller includes an official time clock for the sports event, a control circuit coupled to the official time clock, and a radio transmitter activated by a control circuit for sending a radio signal including time information to the sensory receiver. The sensory receiver is worn by the referee, for instance, on the wrist and includes a radio receiver and a sensory alerting device, such as a piezoelectronic speaker and a vibrator, where such sensory receiver is battery powered. Prior to and/or upon the official time clock reaching zero, a time signal is sent by the transmitter to the radio receiver which interprets and then activates one or more of the selected and configured sensory alert devices to impart an audible sensory alert or a tactual sensory (vibratory) alert, or both, to the referee thereby apprising the referee of the time remaining in or of the expiration of the time period or game, or both.
REFERENCES:
patent: 4637732 (1987-01-01), Jones et al.
patent: 6603711 (2003-08-01), Calace
patent: 6816442 (2004-11-01), Heiman et al.
patent: 7031225 (2006-04-01), McDonald
patent: 7218216 (2007-05-01), Uehran
Crosland Donnie
Daktronics, Inc.
Schwegman Lundberg & Woessner, P.A.
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