Digital recording apparatus real-time clock
AssigneeIntel Corporation
InventorBradford H. Needham
Life of this patent
Estimating the term…
Abstract
An embodiment of a digital recording apparatus real-time clock is disclosed. In particular, a real-time clock to mark when each recording is taken is described. The embodiment comprises a digital recording apparatus that contains a real-time clock powered by the main battery of the digital recording apparatus. The real-time clock resets when the digital recording apparatus's batteries are removed. When a recording is made, the digital recording apparatus marks the recording with the current value of the real-time clock, e.g., seconds since the batteries were changed. A computer then reads the media recorded by the digital recording apparatus and provides a date and time reference to which to relate the digital recording apparatus's real-time clock.
Claims30
An apparatus to denote the date and time in which recordings are taken comprising:
- a digital recording apparatus having a real-time clock that is powered by a main battery of the digital recording apparatus, wherein the real-time clock resets when the battery is removed;
- and
- a computer that reads media recorded by the digital recording apparatus and provides a date and time reference in which to relate the digital recording apparatus's real-time clock.
A digital recording apparatus real-time clock system comprising a readable medium and a computer readable program code stored on the computer readable medium having instructions to:
- read a digital recording apparatus's real-time clock and read a computer's current date and time;
- read the computer's stored clock value and date and time from a previous docking;
- download a recording from the digital recording apparatus to the computer and read its clock value;
- determine if the recording's clock value is greater than one-half of the clock's range;
- calculate the recording's date and time relative to the computer's stored clock reading and date and time reading from the previous docking, if the recording's clock value is greater than one-half of the real-time clock's range;
- otherwise, calculate the recording's date and time relative to the real-time clock's reading and the computer's current date and time reading;
- set the real-time clock equal to one-half of the real-time clock's range if the real-time clock reading is less than one-half of the real-time clock's range;
- save the real-time clock's new value and the computer's current date and time as previous docking values.
A method of denoting the date and time in which recordings are taken comprising:
- reading a digital recording apparatus's real-time clock and reading a computer's current date and time;
- reading the computer's stored clock value and date and time from a previous docking;
- downloading a recording from the digital recording apparatus to the computer and reading its clock value;
- determining if the recording's clock value is greater than one-half of the clock's range;
- calculating the recording's date and time relative to the computer's stored clock reading and date and time reading from the previous docking, if the recording's clock value is greater than one-half of the real-time clock's range;
- otherwise, calculating the recording's date and time relative to the real-time clock's reading and the computer's current date and time reading;
- setting the real-time clock equal to one-half of the real-time clock's range if the real-time clock reading is less than one-half of the real-time clock's range;
- saving the real-time clock's new value and the computer's current date and time as previous docking values.
Dependencies are inferred from the claim text.