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  2. Frame synchronization - Wikipedia

    en.wikipedia.org/wiki/Frame_synchronization

    Thus, it is acceptable to use a much smaller frame boundary marker, at the expense of a lengthier process to establish synchronization in the first place. Frame synchronization is achieved when the incoming frame alignment signals are identified (that is, distinguished from data bits), permitting the data bits within the frame to be extracted ...

  3. Frame (networking) - Wikipedia

    en.wikipedia.org/wiki/Frame_(networking)

    A frame is "the unit of transmission in a link layer protocol, and consists of a link layer header followed by a packet." [2] Each frame is separated from the next by an interframe gap. A frame is a series of bits generally composed of frame synchronization bits, the packet payload, and a frame check sequence.

  4. Synchronous optical networking - Wikipedia

    en.wikipedia.org/wiki/Synchronous_optical_networking

    The STM-1 frame is transmitted in exactly 125 μs, therefore, there are 8,000 frames per second on a 155.52 Mbit/s OC-3 fiber-optic circuit. [nb 1] The STM-1 frame consists of overhead and pointers plus information payload. The first nine columns of each frame make up the section overhead and administrative unit pointers, and the last 261 ...

  5. Data link layer - Wikipedia

    en.wikipedia.org/wiki/Data_link_layer

    The Media Access Control sublayer also performs frame synchronization, which determines the start and end of each frame of data in the transmission bitstream. It entails one of several methods: timing-based detection, character counting, byte stuffing, and bit stuffing. The time-based approach expects a specified amount of time between frames.

  6. Frame synchronization (video) - Wikipedia

    en.wikipedia.org/wiki/Frame_synchronization_(video)

    In video, frame synchronization is the process of synchronizing display pixel scanning to a synchronization source. When several systems are connected, a synchronization signal is fed from the synchronization source to the other systems in the network, and the video signals are synchronized with each other.

  7. Composite video - Wikipedia

    en.wikipedia.org/wiki/Composite_video

    A composite video signal combines, on one wire, the video information required to recreate a color picture, as well as line and frame synchronization pulses. The color video signal is a linear combination of the luminance (Y) of the picture and a chrominance subcarrier which carries the color information (C), a combination of hue and saturation

  8. Syncword - Wikipedia

    en.wikipedia.org/wiki/Syncword

    [citation needed] The syncword is a known sequence of data used to identify the start of a frame, and is also called reference signal or midamble in wireless communications. Prefix codes allow unambiguous identification of synchronization sequences and may serve as self-synchronizing code.

  9. Beacon frame - Wikipedia

    en.wikipedia.org/wiki/Beacon_frame

    After receiving the beacon frame all the stations change their local clocks to this time. This helps with synchronization. Beacon interval This is the time interval between beacon transmissions. The time at which a node (AP, station when in ad hoc or P2P GO mode) must send a beacon is known as target beacon transmission time (TBTT).