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SYNCWORD

Syncword

"Preamble" to communications message data after a header

In computer networks, a syncword, sync character, sync sequence or preamble is used to synchronize a data transmission by providing bit/symbol clock or

Syncword

Reference mark

Typographical mark (※)

writing. In Unicode, the symbol has code point U+203B ※ REFERENCE MARK. Syncword – "Preamble" to communications message data after a header, also called

Reference mark

Reference_mark

Medium access control

Service layer in IEEE 802 network standards

into frames appropriate for the transmission medium (i.e. the MAC adds a syncword preamble and also padding if necessary), adds a frame check sequence to

Medium access control

Medium_access_control

Frame synchronization

have their predicted values. Syncword and flag sequence framing Rather than a single bit, some systems use a multi-bit syncword in each frame, or a flag sequence

Frame synchronization

Frame_synchronization

Header (computing)

Information at the beginning of data which describes or defines the data

sectors of data stored on magnetic media, typically the header begins with a syncword to allow the receiver to adapt to analog amplitude and speed variations

Header (computing)

Header_(computing)

Frame check sequence

Error-detecting code used in communications protocols

protocols. Protocols of the Internet protocol suite tend to use checksums. Syncword "3.1.1 Packet format", 802.3-2012 - IEEE Standard for Ethernet (PDF), IEEE

Frame check sequence

Frame_check_sequence

Automatic baud rate detection

Detecting data connection configuration

examining the first character, usually a preselected sign-on character (syncword) on a UART connection. ABR allows the receiving device to accept data from

Automatic baud rate detection

Automatic_baud_rate_detection

Sync

Topics referred to by the same term

tool SyncToy, a Microsoft PowerToy's software for file synchronization Syncword, in computer networks, used to synchronize a data transmission by indicating

Sync

Dolby Digital

Audio compression technologies

sample rate code to determine the number of (2-byte) words before the next syncword. Channel blocks can be either long, in which case the entire block is processed

Dolby Digital

Dolby_Digital

WSJT (amateur radio software)

Software

one space, the FSK441 decoding algorithm uses that space character as a syncword for zero-overhead synchronization. This mode is no longer included in WSJT-X

WSJT (amateur radio software)

WSJT_(amateur_radio_software)

Line code

Pattern used within a communications system to represent digital data

include MLT-3 encoding and NRZI. Invert the whole stream when inverted syncwords are detected, perhaps using polarity switching For reliable clock recovery

Line code

Line_code

Hayes AT command set

Command language for modems

01000001010001010101 (start and stop bits italicized) which is used as syncword. The following commands are understood by virtually all modems supporting

Hayes AT command set

Hayes_AT_command_set

Pilot signal

Communication system technology

pilot frequencies belonging to the carrier frequency multiplex system. Syncword Synchronous Idle Pilottone This article incorporates public domain material

Pilot signal

Pilot_signal

Packetized elementary stream

Specification of the MPEG-2 standard

packet header is immediately followed by the video start code or audio syncword Copyright 1 1 implies copyrighted Original or Copy 1 1 implies original

Packetized elementary stream

Packetized_elementary_stream

6b/8b encoding

Line code used in telecommunications

consecutive identical bits constitutes a comma sequence or sync mark or syncword; it identifies the symbol boundaries precisely. Those 6 bits straddle the

6b/8b encoding

6b/8b_encoding

Differential coding

Technique in digital communications

to deal with a phase ambiguity. The other popular technique is to use syncwords for this purpose. That is, if a frame synchronizer detects repeated inverted

Differential coding

Differential_coding