Pelco, Inc.

Daniel Robert DaSilva

Glenn C Waehner

John D Pretzer

This invention provides methods for managing the overwriting of existing stored video data with new incoming video data by prioritizing all video categories, and establishing rules for each level of priority. The methods are based upon the classification or prioritization of the each video segment into discrete categories. Rules are established for each particular category. Then as incoming video arrives, a two-part filtering system is used to identify which existing video will be overwritten. First, video in the lowest priority category is identified. Then the retention rules are applied to the identified video in the category to determine whether it can be overwritten. This two step filtering process is repeated for each category from lowest to highest until sufficient space is made available to receive the incoming video. The prioritization of the categories may be changed in real time by the user, according to the value or importance of any particular existing stored video in order to preserve it.

Rule-based digital video recorder

A method for storing video data files upon an array of multiple storage devices on a frame-by-frame basis, with the larger video frames placed upon devices having more free storage capacity, so as to preserve the video data stream continuity, optimize the capacity of the storage devices within the array, minimize or negate the need for any redundant storage, and at the same time, provide a means for easily expanding the overall storage capacity of the array.

Digital video recorder file system

The present invention is a method and apparatus that allows the torque of an electric motor to be increased allowing the motor to be operated at higher speeds and at higher torque without raising the supply voltage, thus allowing for a wider dynamic range of speed and torque to be realized. This is accomplished by connecting one or more capacitors in series with each motor winding, and selectively activating the capacitors at higher speeds where the frequency of the motor resonates with that of the capacitor(s). Switching a capacitor into the circuit with the motor in a particular frequency range allows higher currents to flow through the motor windings resulting in higher torque.

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Clovis, CA, United States of America

Daniel Robert DaSilva