Home monitoring digital video recorder (DVR)

Abstract

A digital video recorder makes use of a flash memory for storage of A/V data to accomplish multiple times of read/write. A programmable digital signal processing (DSP) chip is also provided to integrate various circuits with different functions in a modular way to decrease the number of chips, lower the cost, and increase the reliability. Moreover, the DSP chip can monitor the actions of video playback/recording without connection to an external computer, hence accomplishing easy operation without complex setting. There is also a built-in video recognition trigger mechanism, which can be replaced by an external personal infrared (PIR) circuit to trigger recording actions only when an event takes place. A small-size, low-price digital video recorder of easy installation and high reliability can thus be provided, and can effectively save power to be suitable for home use.

Dependencies are inferred from the claim text.