Title:
EXAM NOTIFICATION TIMER DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/166208
Kind Code:
A3
Abstract:
A calculator and exam notification timer device integrated into one housing. A plurality of numeral keys (0-9) and function keys and a display are disposed the housing. A first processing section performs calculation functions based on input from the numeral keys and the function keys and displays the result on the display. A second processing section performs a time keeping function based on values programmed by user via the numeral keys and function keys, and displays a total elapsed or remaining time, a current exam problem, and an elapsed or remaining time for the current exam problem on the display. A switch within the calculator forwards the signal from the numeral keys to either the first or second processing section based on a switching state which is controlled by a switch key on the housing or one of the function keys.
Inventors:
ESTRADA JORGE L (US)
CHEN HENRY K (US)
YNSFRAN EVER (US)
CHEN HENRY K (US)
YNSFRAN EVER (US)
Application Number:
PCT/US2013/039148
Publication Date:
May 30, 2014
Filing Date:
May 01, 2013
Export Citation:
Assignee:
ESTRADA JORGE L (US)
CHEN HENRY K (US)
YNSFRAN EVER (US)
CHEN HENRY K (US)
YNSFRAN EVER (US)
International Classes:
G04G21/00; G06F15/02
Foreign References:
| US6687720B1 | 2004-02-03 | |||
| US20040008589A1 | 2004-01-15 | |||
| US6975563B2 | 2005-12-13 | |||
| US4189912A | 1980-02-26 | |||
| US6173060B1 | 2001-01-09 |
Attorney, Agent or Firm:
CHEN, Ying (108 W 2nd Street #514Los Angeles, California, US)
Download PDF: