Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1976-04-13
1978-02-14
Jackmon, E. S.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340384E, G04C 2104, G04C 2116
Patent
active
040731332
ABSTRACT:
An electronic system having a chime and strike program simulating the program of a Westminster clock including an actuating source, a solid state integrated circuit and a loud speaker. The integrated circuit includes a plurality of counters for activating a frequency synthesizer and both tone switching and generating circuits thereby to generate the strike and chime program on the hour and a chime program on the other quarter hours indicative of the time throughout a 24-hour period. The chime program is sequenced by a chime matrix.
REFERENCES:
patent: 2582441 (1952-01-01), Kunz
patent: 2761127 (1956-08-01), Miessner
patent: 2791146 (1957-05-01), Kunz
patent: 2915872 (1959-12-01), Maas
patent: 3623086 (1971-11-01), Cronin
patent: 3759029 (1973-09-01), Komaki
Earls David E.
Nampoothiri C. N. Damodaran
General Time Corporation
Jackmon E. S.
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