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    The glossary explains technical terminologies in an easy-to-understand format.

    Glossary
    Term Description
    AWB

    A system for detecting errors in color balance in white and black areas of the picture and automatically adjusting the white and black levels of both the red and blue signals as needed for correction.

    AVI

    It is a multimedia container format as part of its Video for Windows technology. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback.

    Auto touch sensor

    It is the sensor to detect of finger os over to recognition sensor. when fingerprint identification mode is used

    Auto pan, swing

    Automatic back and forth camera motion.

    Auto delete,timed expiry,auto retention

    Can not search recorded data that is recorded before setting time.

    Auto iris

    Auto iris automatically control iris opening for the amount of light regarding environment's brightness. There are 2types DC-iris and video-iris.

    Authentication

    Authentication is the act of establishing or confirming something (or someone) as authentic, that is, that claims made by or about the subject are true.

    ATA (P-ATA)

    Parallel ATA (PATA) is an interface standard for the connection of storage devices such as hard disks, solid-state drives, floppy drives, and CD-ROM drives in computers. The standard is maintained by X3/INCITS committee[1]. It uses the underlying AT Attachment (ATA) and AT Attachment Packet Interface (ATAPI) standards.

    Aspect ratio

    The aspect ratio of a shape is the ratio of its longer dimension to its shorter dimension. It may be applied to two characteristic dimensions of a three-dimensional shape or for symmetrical objects that are described by just two measurements.

    ASK

    ASK is a form of modulation that represents digital data as variations in the amplitude of a carrier wave.
    The amplitude of an analog carrier signal varies in accordance with the bit stream (modulating signal), keeping frequency and phase constant. The level of amplitude can be used to represent binary logic 0s and 1s.

    ASIC

    Application-specific integrated circuit, an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use.

    Arm

    A satae that all accesses are denied. In this state, reader doesn't process of input port.

    Archive

    An archive is a collection of historical records, as well as the place they are located. Archives contain primary source documents that have accumulated over the course of an individual or organization's lifetime.

    API

    An application programming interface (API) is an interface implemented by a software program to enable interaction with other software, similar to the way a user interface facilitates interaction between humans and computers.

    Aperture compensation

    Technique that can get more improved image using amplifier of aperture of object.

    APB

    A security mechanism preventing an access card or similar device from being used to enter an area a second time without first leaving it (so that the card cannot be passed back to a second person who wants to enter).

    Angle of view

    In photography, angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

    ALC

    The process by which the illumination incident upon the face of a pickup device is automatically adjusted as a function of scene brightness.

    Alarm input (sensor input)

    Alarm input is a kind of external input for receiving of event.

    Alarm event

    The event is caused from changing status of sensor.

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