Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent
1986-03-10
1987-11-10
Kemeny, E. S. Matt
Electrical audio signal processing systems and devices
Monitoring/measuring of audio devices
Loudspeaker operation
3645135, 368 63, G10L 500
Patent
active
047062886
ABSTRACT:
Repeated announcements by a talking timepiece are selectable in two modes: predetermined intervals selected by a selector switch, or arbitrary intervals selected by a keyboard.
REFERENCES:
patent: 3632880 (1972-01-01), Goldshein
patent: 4016540 (1977-04-01), Hyatt
patent: 4177520 (1979-12-01), Meff
patent: 4246650 (1981-01-01), Moritani et al.
patent: 4301511 (1981-11-01), Shimuzu et al.
Hashimoto Shintaro
Morita Akitaka
Tsuda Hiroshi
Kemeny E. S. Matt
Sharp Kabushiki Kaisha
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