Participant-identification recording and playback system
First Claim
1. A participant-identification recording and playback system comprising a plurality of wireless microphones, each of said microphone including a respective radio transmitter for broadcasting a respective signal modulated with a respective audio signal representing speech of a respective participant and a distinctive participant-identification signal;
- radio receiving means responsive to signals received from said radio transmitters for producing output signals which include signals carrying respective modulation representing speech of respective participants and respective signal characteristics representing identity of respective participants;
recording and playback means for recording and playing back the output signals;
means responsive to output from said recording and playback means for deriving audio signals therefrom representative of speech signals of respective participants and signals identifying respective participants;
means for producing time signals and means responsive to said output signals from said receiving means for feeding the time signals to said recording and playback means whenever any participant starts to speak and whenever any participant stops speaking.
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Accused Products
Abstract
A participant-identification, recording and playback system includes a plurality of radio transmitters, preferably FM transmitters, which are tuned to respectively different center frequencies, and serve as respective wireless microphones assigned to respective participants. A radio receiver which is operatively associated with a recording and playback system is provided to receive signals from all of the wireless microphones, reduce these to a plurality of IF signal and record the same. The playback portion of the system includes a plurality of demodulators which allows one to recover all the audio signals on a selective basis for transcription. Circuitry is provided to identify the speakers and to indicate start and stop times.
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Citations
6 Claims
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1. A participant-identification recording and playback system comprising a plurality of wireless microphones, each of said microphone including a respective radio transmitter for broadcasting a respective signal modulated with a respective audio signal representing speech of a respective participant and a distinctive participant-identification signal;
- radio receiving means responsive to signals received from said radio transmitters for producing output signals which include signals carrying respective modulation representing speech of respective participants and respective signal characteristics representing identity of respective participants;
recording and playback means for recording and playing back the output signals;
means responsive to output from said recording and playback means for deriving audio signals therefrom representative of speech signals of respective participants and signals identifying respective participants;
means for producing time signals and means responsive to said output signals from said receiving means for feeding the time signals to said recording and playback means whenever any participant starts to speak and whenever any participant stops speaking. - View Dependent Claims (2, 3, 4, 5, 6)
- radio receiving means responsive to signals received from said radio transmitters for producing output signals which include signals carrying respective modulation representing speech of respective participants and respective signal characteristics representing identity of respective participants;
Specification