Number | Date | Country | Kind |
---|---|---|---|
62-169272 | Jul 1987 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3725585 | Moniak | Apr 1973 | |
4025728 | Jacobson | May 1977 | |
4629829 | Puhl et al. | Dec 1986 |
Entry |
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A. Busala, "Fundamental Consideration in the Design of a Voice--Switched Speakerphone," The Bell System Technical Journal, vol. XXXIX, 3-1960, pp. 265-294. |
W. F. Clemency et al., "Functional Design of a Voice--Switched Speakerphone", The Bell System Technical Journal, vol. XL, May 1961, pp. 649-668. |