| US 7,489,595 B2 | ||
| Digital time clock for operation in conjunction with mechanical time clock | ||
| Andrew E. King, Portland, Oreg. (US); and Korey Calmettes, Beaverton, Oreg. (US) | ||
| Assigned to Icon Time Systems, Inc., Beaverton, Oreg. (US) | ||
| Filed on Aug. 31, 2007, as Appl. No. 11/849,031. | ||
| Application 11/849031 is a division of application No. 11/564814, filed on Nov. 29, 2006, granted, now 7,266,048. | ||
| Prior Publication US 2008/0121691 A1, May 29, 2008 | ||
| Int. Cl. G04B 47/00 (2006.01); G06C 15/10 (2006.01); G06K 1/00 (2006.01) | ||
| U.S. Cl. 368—10 [346/80; 235/377] | 39 Claims |
| 1. A digital time clock for operation in conjunction with a mechanical time clock, the digital time clock comprising:
a power supply for supplying power to the digital time clock;
a time base for generating an indication of time;
a storage area for storing data;
a card detection component for detecting the presence of a time card near a mechanical time clock, wherein the digital time
clock is cycled from a quiescent state that draws low power from the power supply to an operational state when the time card
is detected; and
a bar code reader that, when the digital time clock is in the operational state, reads an identifier from a bar code that
is associated with the time card and stores the identifier and a time from the time base reflecting the detection of the time
card in the storage area.
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