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Pattern used within a communications system to represent digital data
In telecommunications, a line code is a pattern of voltage, current, or photons used to represent digital data transmitted down a communication channel
Line_code
Study of the properties of codes and their fitness
There are four types of coding: Data compression (or source coding) Error control (or channel coding) Cryptographic coding Line coding Data compression attempts
Coding_theory
Line code used in early magnetic data storage and Ethernet
telecommunications and data storage, Manchester code (also known as phase encoding, or bi-phase code) is a line code in which the encoding of each data bit is
Manchester_code
of a three-digit area code, a three-digit central office code, also known as exchange code, and a four-digit station or line code. This is represented
Telephone_numbers_in_Canada
Rate of modulation of a digital signal
In a digitally modulated signal or a line code, symbol rate, modulation rate or baud rate is the number of symbol changes, waveform changes, or signaling
Symbol_rate
Digital telecommunications technique
Modified AMI codes are a digital telecommunications technique to maintain system synchronization. Alternate mark inversion (AMI) line codes are modified
Modified_AMI_code
Character encoding standard
characters that are still commonly used include carriage return, line feed, and tab. ASCII lacks code-points for characters with diacritical marks and therefore
ASCII
Software metric used to measure the size of a computer program
order of magnitude of lines of code in a project. Using lines of code to compare a 10,000-line project to a 100,000-line project is far more useful than
Source_lines_of_code
country codes from the 3xx and 9xx ranges between 1993 and 1998. 8 ABC xxx-xx-xx (where ABC is the area code) e.g. 8 499 xxx-xx-xx (to Moscow, fixed line) e
Telephone_numbers_in_Russia
Type of amplitude-shift keying modulation
information. It is analogous to unipolar encoding line code. On–off keying is most commonly used to transmit Morse code over radio frequencies (referred to as CW
On–off_keying
Topics referred to by the same term
Manchester Bakerloo line, a London Underground line Banja Luka, a city in Bosnia and Herzegovina Bannan line, a Taipei Metro line, code BL Saint Barthélemy
BL
of channel coding include: Parity checks Hamming code Reed-Muller code Reed-Solomon code Turbo coding See main article Line code Line coding consists of
Node-to-node_data_transfer
Sequence of digital values used for synchronisation
In telecommunication technology, a Barker code or Barker sequence is a finite sequence of digital values with the ideal autocorrelation property. It is
Barker_code
Planning MRT route in Taipei
The Minsheng–Xizhi or the Sky Blue line (Code: SB) is a planned line on the New Taipei Metro. Its stations abbreviate as "SBXX," with XX being the station
Minsheng–Xizhi_line
Telecommunications coding technique
In telecommunications, a non-return-to-zero (NRZ) line code is a binary code in which ones are represented by one significant condition, usually a positive
Non-return-to-zero
Code sequence with no branches except at entry and exit
In compiler construction, a basic block is a straight-line code sequence with no branches in except to the entry and no branches out except at the exit
Basic_block
Coded piece of information
A line-out code is a coded piece of information, used to communicate intentions about a line-out within one team in a rugby union match without giving
Line-out_code
Line code used in early magnetic data storage
Modified frequency modulation (MFM) is a run-length limited (RLL) line code used to encode data on most floppy disks and some hard disk drives. It was
Modified_frequency_modulation
Topics referred to by the same term
computer programs Line coding, in data storage Source coding, compression used in data transmission Coding theory Channel coding Encryption coding, a process
Coding
Symbol rate measurement in telecommunications
transmission medium per second in a digitally modulated signal or a bd rate line code. Baud is related to gross bit rate, which can be expressed in bits per
Baud
Self-synchronizing line code
Differential Manchester encoding (DM) is a line code in digital frequency modulation in which data and clock signals are combined to form a single two-level
Differential Manchester encoding
Differential_Manchester_encoding
Computer programming convention
source code. An indentation style generally specifies a consistent number of whitespace characters before each line of a block, so that the lines of code appear
Indentation_style
Method for encoding data in communications
In coding theory, a constant-weight code, also called an m-of-n code or m-out-of-n code, is an error detection and correction code where all codewords
Constant-weight_code
Telecommunication device that obscures signals
scrambler can be placed just before a FEC coder, or it can be placed after the FEC, just before the modulation or line code. A scrambler in this context has nothing
Scrambler
Commission. Fixed-line numbers are composed of a combination of an area code and a local line or subscriber telephone number. The area code consists of 20
Telephone_numbers_in_Nigeria
Text in computer source code that is generally ignored by a compiler/interpreter
on the same line as and to the right of program code to which it refers. Both prologue and inline comments can be represented as either line or block comments
Comment (computer programming)
Comment_(computer_programming)
Railway line in Aichi prefecture, Japan
introduced station numbering and line coloring in March 2018, and Taketoyo line was assigned the color brown and line code CE. The line features the oldest actively
Taketoyo_Line
OSI model layer for physical data transmission
properties of the electrical connectors, the frequencies to transmit on, the line code to use and similar low-level parameters are specified by the physical
Physical_layer
Binary sequence used in telecommunications
one. Gold codes are used in GPS. The GPS C/A ranging codes are Gold codes of period 1,023. Hadamard code Hamming code JPL code Kasami code Zadoff–Chu
Gold_code
Method in wireless communication systems
codes) and also provide diversity gain but doesn't provide coding gain. Space–time line codes (STLCs) and STBCs are symmetric with respect to the transmit-and-receive
Space–time_code
country codes are telephone number prefixes for reaching subscribers in foreign countries or areas by international direct dialing (IDD). Country codes are
List of telephone country codes
List_of_telephone_country_codes
Information transmission rate expressed in bits per second
the above is some self-synchronizing line codes, for example Manchester coding and return-to-zero (RTZ) coding, where each bit is represented by two
Bit_rate
Line code mapping 8-bit words to 10-bit symbols
In telecommunications, 8b/10b is a line code that maps 8-bit words to 10-bit symbols to achieve DC balance and bounded disparity, and at the same time
8b/10b_encoding
NANP area codes for the Dominican Republic
of the area code, a three-digit central office code, and a four-digit line number. The three area codes of the country are organized as an overlay complex
Area_codes_809,_829,_and_849
Early form of read-only memory
current on a line into a phone number. At the time, all of the numbers in a particular exchange had the same three digit central office code. For any given
Core_rope_memory
Line code used in Ethernet technologies
data networking and transmission, 64b/66b is a line code that transforms 64-bit data to 66-bit line code to provide enough state changes to allow reasonable
64b/66b_encoding
Type of line code where two nonzero values are used
telecommunication, bipolar encoding is a type of return-to-zero (RZ) line code, where two nonzero values are used, so that the three values are +, −
Bipolar_encoding
Type of code in coding theory
In coding theory, especially in telecommunications, a self-synchronizing code is a uniquely decodable code in which the symbol stream formed by a portion
Self-synchronizing_code
Transmission of language with brief pulses
Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes
Morse_code
Military personnel using their native languages for secret wartime communication
their indigenous languages. The code talkers improved the speed of encryption and decryption of communications in front line operations during World War II
Code_talker
Digital telecommunication signalling method
MLT-3 encoding (Multi-Level Transmit) is a line code (a signaling method used in a telecommunication system for transmission purposes) that uses three
MLT-3_encoding
Identifier of a sequence of characters in a text file
source code line is one greater than the number of new-line characters read or introduced up to that point. Programmers could also assign line numbers
Line_number
Characters for drawing frames and boxes
APIs. However, they are still useful for command-line interfaces and plaintext comments within source code. Some recent embedded systems also use proprietary
Box-drawing_characters
Transfer of data over a communication channel
transmission, messages are represented by a sequence of pulses by means of a line code; in passband analog transmission, they are communicated by a limited set
Data_communication
Line code in telecommunication
In telecommunications, a paired disparity code is a line code in which at least one of the data characters is represented by two codewords of opposite
Paired_disparity_code
Coding guidelines by Gerald J. Holzmann
with one line per statement and one line per declaration. Typically, this means no more than about 60 lines of code per function. The code's assertions
The Power of 10: Rules for Developing Safety-Critical Code
The_Power_of_10:_Rules_for_Developing_Safety-Critical_Code
Standards for Ethernet at ten times the speed of Gigabit Ethernet
line at 800 Msymbols/sec. Prior to precoding, forward error correction (FEC) coding is performed using a [2048,1723]2 low-density parity-check code on
10_Gigabit_Ethernet
As of Unicode version 18.0, there are 310,351 assigned characters with code points, covering 175 modern and historical scripts, as well as multiple symbol
List_of_Unicode_characters
Coding technique in communication technology
Run-length limited (RLL) is a line coding technique that is used to send arbitrary data over a communications channel with bandwidth limits. RLL is used
Run-length_limited
Telecommunications line code
In telecommunications, 4B5B is a form of data communications line code. 4B5B maps groups of 4 bits of data onto groups of 5 bits for transmission. These
4B5B
Japanese railway company
the "Seibu" name and expanded its main line to Takadanobaba, forming what is now known as the Seibu Shinjuku Line. The current Seibu Railway is a product
Seibu_Railway
Four-letter code designation for aviation facilities around the world
The ICAO airport code or ICAO location indicator is a four-letter code designating aerodromes around the world. These codes are defined by the International
ICAO_airport_code
Basic Rate Interface
defined by the ANSI T1.601 specification as a 2-wire connection using 2B1Q line coding. It is not as distance sensitive as the S interface or T interface, and
U_interface
Line code in which the signal value returns to zero between each pulse
Return-to-zero (RZ or RTZ) describes a line code used in telecommunications signals in which the signal drops (returns) to zero between pulses. This takes
Return-to-zero
DC-free run-length limited line code used by several optical disc formats
technique – formally, a line code – used by compact discs (CD), laserdiscs (LD) and pre-Hi-MD MiniDiscs. EFMPlus is a related code, used in DVDs and Super
Eight-to-fourteen_modulation
Mathematical sequences
shifts of b(n) forms the Kasami set of code sequences. Gold sequence (aka Gold code) JPL sequence (aka JPL code) Kasami, Tadao; Kohno, Ryuji (2002). "Kasami
Kasami_code
number zero + the area code is required to dial any fixed-line number in India from a mobile phone, irrespective of the area code. For example, to dial
Telephone_numbers_in_India
American family drama series
Line of Fire is an American family action thriller television series created by Joshua Safran and produced by Universal Television for NBC. The series
Line_of_Fire_(2026_TV_series)
Extracting timing information in serial communication
data recovery Eight-to-Fourteen Modulation HDB3 encoding Jitter Line code Manchester code Phase-locked loop Hsieh, Ming-ta; Sobelman, Gerald (December 2008)
Clock_recovery
Signal able to be decoded without an outside source of synchronization
adding constraints on the coding of the data payload such that false synchronization can easily be detected. Most line codes are designed to be self-clocking
Self-clocking_signal
Typesetting system
a drum on the keyboard indicates codes which are punched on the paper tape with special keys to indicate how the line is to be justified. The tape is then
Monotype_system
Concept in telecommunications
telecommunications, the term code conversion has the following meanings: 1. Conversion of signals, or groups of signals, in one code into corresponding signals
Code_conversion
Telecommunications protocol
uses two wire pairs with at a rate of 784 kbit/s each, using the 2B1Q line code, which is also used in the American variant of the ISDN U interface. First
High-bit-rate digital subscriber line
High-bit-rate_digital_subscriber_line
recommended codes to the two-letter country codes of ISO 3166. This would allow a universal, standardized code set to be used, and bring it in line with country
List_of_postal_codes
Country code: +353 International call prefix: 00 Trunk prefix: 0 This is a list of telephone dialling codes for the Republic of Ireland. Fixed-line telephone
List of dialling codes in the Republic of Ireland
List_of_dialling_codes_in_the_Republic_of_Ireland
Standard for Ethernet networking at a data rate of 1 gigabit per second
signal and allow for clock recovery. The symbols are then sent using NRZ line code. Optical fiber transceivers are most often implemented as user-swappable
Gigabit_Ethernet
Subdivision of a text file
In computing, a line is a unit of organization for text files. A line consists of a sequence of zero or more characters, usually displayed within a single
Line_(text_file)
Finite states of a digital signal
the device to reliably distinguish 2n distinct voltage levels. Digital line codes may use more than two states to encode and transmit data more efficiently
Logic_level
Integrated telephone numbering plan of twenty North American countries
area code 234, central office prefix (exchange) 235, and line number 5678. The number 234 911-5678 is invalid, because the central office code must not
North_American_Numbering_Plan
File format for financial data
Type:[type identifier string] [single character line code]Literal String Data ... ^ [single character line code]Literal String Data ... ^ Each record ends
Quicken_Interchange_Format
Type of ternary line code in telecommunications
In telecommunications, the hybrid (H-) ternary line code is a line code that operates on a hybrid principle combining the binary non-return-to-zero-level
Hybrid_ternary_code
Number of monospaced characters
JavaScript Style Guide "4.1. Line length". Java Code Conventions (PDF). Sun Microsystems, Inc. 1997. p. 5. "Linux kernel code style as of June 2020". git
Characters_per_line
Activity where one or more people check a program's code
participants and phases. In formal code reviews, software developers attend a series of meetings to examine code line by line, often using printed copies. Research
Code_review
Area codes in Houston, Texas
new area code is being added to the Houston line-up". KTRK-TV. 2025-01-17. Retrieved 2025-08-19. Hlavaty, Craig (May 9, 2013). "Wait, area code pride is
Area codes 713, 281, 832, 346, and 621
Area_codes_713,_281,_832,_346,_and_621
Computer control characters
position of a cursor, an instruction to start a new line, or a message that the text has been received. C0 codes are the range 00HEX–1FHEX and the default C0
C0_and_C1_control_codes
Serial communications protocol
over Serial Line protocol results in Modbus Serial Line PDU. Modbus Serial Line PDU = Address + PDU + CRC (or LRC) With PDU = Function code + data Address
Modbus
Area code for Pinellas County, Florida, United States
Oldsmar's trunk is wired into the Tampa line, and it would have been too expensive for GTE to rewire it. Area code 727 covers Pinellas County, Florida (including
Area_code_727
Telecommunication term
Bit-sequence-independence allows only line codes that have the same number of transitions per bit, otherwise, the line code is dependent on the bit sequence
Bit-sequence_independence
Area code for northeastern Kansas, United States
City, received area code 316. The northern half, with its largest population center around Kansas City along the Missouri state line, also including Shawnee
Area_code_913
Digital representation of sampled analog signals
Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs
Pulse-code_modulation
Babylonian legal text
The Code of Hammurabi is a Babylonian legal text composed c. 1753 BC. It is the longest, best-organized, and best-preserved legal text from the ancient
Code_of_Hammurabi
Line code
In telecommunication, coded mark inversion (CMI) is a non-return-to-zero (NRZ) line code. It encodes zero bits as a half bit time of zero followed by a
Coded_mark_inversion
distances of up to RRD range[definition needed]. Like ISDN, IDSL uses a 2B1Q line code to enable transparent operation through the ISDN U interface. Finally
ISDN_digital_subscriber_line
Open-source AI coding agent
Visual Studio Code and JetBrains integrated development environments, through a command-line interface, and through cloud-based agents. Kilo Code was acquired
Kilo_Code
Line code
SpaceWire and the IEEE 1394 (also known as FireWire 400) system. Gray code is another code that always changes one logical value, but never more than one. Parkes
Data_strobe_encoding
Platform offering code practice and mentorship
website differed from other coding platforms by requiring students to download exercises through a command line client, solve the code on their own computers
Exercism
Office introduced ZIP codes in July 1963. The purpose, rather than to standardize state abbreviations per se, was to make room in a line of no more than 23
List of U.S. state and territory abbreviations
List_of_U.S._state_and_territory_abbreviations
Technique in digital communications
line codes designed to be polarity insensitive - whether the data stream is inverted or not, the decoded data will always be correct. The line codes with
Differential_coding
Topics referred to by the same term
U, a line of the Paris transport network U (Los Angeles Railway), a former streetcar line Yurikamome, a new transit in Tokyo, Japan, line code "U" This
U_Line_(disambiguation)
Tool of editors for programming, scripting and markup
of lines of code with very little "interesting" content – code folding can reduce this to a single line per field, or even to a single line for all fields
Code_folding
lists standard and notable non-standard HTTP response status codes. Standardized codes are defined by IETF as documented in Request for Comments (RFC)
List_of_HTTP_status_codes
Telephone area code for St. Louis, Missouri
east side of the West Plains area to the Arkansas state line. The largest city of the area code was St. Louis on the Mississippi river in the east. By
Area_codes_314_and_557
Numbering method for assigning routing addresses for telephones
in the length of the area code, the local number, or both. The subscriber number is the address assigned to a telephone line or wireless communication
Telephone_numbering_plan
area code + phone number Example: Calling a fixed line in Lima: 011 51 1 1234567 Calling a fixed line in Cusco: 011 51 84 123456 Calling a fixed line in
Telephone_numbers_in_Peru
Telephone area codes in Pennsylvania, United States
the Philadelphia Main Line, and all of the Lehigh Valley. Area code 610 was placed in service on January 8, 1994, in an area code split from numbering
Area_codes_610,_484,_and_835
Integrated development environment from Microsoft
developers to attach to running processes and step through source code line-by-line during execution, offering a detailed view of program flow. It can
Visual_Studio_Code
Telephone area code in western Massachusetts, United States
state received area code 413, while the eastern two-thirds (including Boston and Worcester) were assigned 617. The dividing line between the two NPAs
Area_code_413
Area code in Michigan, United States
Area code 231 is a telephone area code in the North American Numbering Plan (NANP) for the northwestern portion of the Lower Peninsula in the U.S. state
Area_code_231
Topics referred to by the same term
International Airport, Cape Verde El Salvador International Airport, IATA code SAL Sal languages, a family of Tibeto-Burman languages Salam Zgharta FC,
Sal
their existing phone number including their operator code. Typical format for a private fixed line telephone number is +880 XXNN-NNNNNN. 035 – Bangla Phone
Telephone numbers in Bangladesh
Telephone_numbers_in_Bangladesh
travel, tourism, insurance
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travel, tourism, insurance