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US 4,396,800 AGranted
Microphone switching device
AssigneeEdward J. McDonnell
InventorsEdward J. McDonnell, George Van Houten
Life of this patent
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AssigneeEdward J. McDonnell
InventorsEdward J. McDonnell, George Van Houten
Estimating the term…
Apparatus allowing a performer on stage using a microphone to communicate privately backstage during a performance with minimum or unobservable interruption to the audience. A miniature switch on an attachment to the microphone handle when actuated via the communications channel operates a relay or switching device to transfer communications from the performer's microphone to a backstage intercommunication system while temporarily disconnecting the microphone from the public address system. The attachment constituting a minor extension to the microphone handle enabling a self contained battery and resistance network to provide operating current to a switching relay. One or more visual indicators signal operation of the apparatus to backstage personnel alerting them to a forthcoming performer message.
In a stage scene including a public address system connected via a microphone cable to a performer's hand-held microphone through microphone terminals and a backstage intercommunication system, the improvement comprising:
In a stage scene including a public address system connected to a performer's microphone and a backstage intercommunication system, the improvement comprising:
In a stage scene including a public address system connected to a performer's microphone and a backstage intercommunication system, the improvement comprising:
The combination in accordance with claim 10 including indicator means operative in response to the application of power to said switching means for providing an indication of the transfer of said microphone connection to said intercommunication system.
A microphone attachment for a microphone having a cable plugged into the handle thereof comprising a body having dimensions compatible with the handle, connectors mating with the microphone and cable and conductors extending therethrough to constitute direct interconnection electrically between the microphone and the cable;
Dependencies are inferred from the claim text.