Electronic watch
AssigneeUranus Electronics, Inc.
InventorsMorris M. Levine, Arthur F. Cake
Life of this patent
Estimating the term…
Abstract
An electronic watch including a means to establish a time standard, a means to provide a frequency source from the time standard, a means to divide the frequency source into pulses representing seconds, minutes, hours, days, day of the week, months and years, means to display information visually and a means to drive the display including a control for activating said means to display and setting means to program said means to divide the frequency source.
Claims18
An electronic watch having a means to provide a frequency source from a time standard, a first electronic means to decode frequency signals from said source and provide selected digit pulse outputs at predetermined intervals, a digit driver connected to said first means, a display means connected to said digit driver, a binary divider chain connected to said frequency source continuously operable with counter means to provide pulses representative of seconds, minutes, hours, days of the month, days of the week and months in proper sequential order, said divider chain comprised of gate means to advance each portion thereof in accordance with pulses starting with the portion of the counter means providing pulses representative of seconds, said gate means comprised of a differentiator circuit of NOR gates and an advancing and setting circuit of NAND gates, decoder-encoder means connected to said binary divider chain, a segment driver connected to said decoder encoder means and said display means, and a control meas connected to said binary divider chain and said digit driver to control the activation of said display in indicating selected information of hours - minutes, days of the month- seconds, days of the week- months at selected pulses from said decoder.
Dependencies are inferred from the claim text.