A microphone and transmitter are mounted to a baseball base such that they do not interfere with the baseball game. The microphone senses audio data and the transmitter sends the audio data to a receiver. The receiver communicates the audio data to a mixer which can insert the audio data into a television or radio signal.
申请公布号
US5963849(A)
申请公布日期
1999.10.05
申请号
US19970837808
申请日期
1997.04.22
申请人
FOX SPORTS PRODUCTIONS, INC.
发明人
HILL, DAVID BLYTH;GEPNER, JERRY NEIL;MEIS, ALAN D.;MEIS, RYAN ADAM