Portable clock e.g. wrist watch, for use with computer e.g. personal digital assistant, has data retention mechanism allowing data to be password-protected, where access to data memory is provided after input of password by user

摘要

The clock has a data retention mechanism and a memory for data, where data can be entered and deleted. The data retention mechanism allows the data to be password-protected and access to the data memory is provided only after input of a password and/or a pin by a user. The data retention mechanism comprises a microprocessor, a display and control devices (5, 7, 9, 11) for autonomous operation.