CCIR System B (625-line PAL/SECAM TV standard)
E314876
CCIR System B is an analog television broadcasting standard that defines a 625-line, 50 Hz VHF transmission system widely used in conjunction with PAL and SECAM color encoding across many countries.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CCIR System B (625-line PAL/SECAM TV standard) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2971862 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CCIR System B (625-line PAL/SECAM TV standard) Context triple: [CCIR, workedOnStandard, CCIR System B (625-line PAL/SECAM TV standard)]
-
A.
NTSC color television standard
The NTSC color television standard is an analog broadcast system developed in the United States that defined how color video signals were encoded and transmitted for decades of North American television.
-
B.
CCIR
CCIR (Comité Consultatif International des Radiocommunications) was the former international standards body responsible for coordinating and recommending technical standards for global radio and broadcasting communications.
-
C.
DVB broadcasting standards
DVB broadcasting standards are a family of international specifications that define how digital television signals are transmitted, compressed, and received over terrestrial, satellite, and cable networks.
-
D.
DVB-T
DVB-T is a widely used digital terrestrial television broadcasting standard that delivers multiple TV and radio channels over conventional aerials.
-
E.
SMPTE color bars
SMPTE color bars are a standardized television test pattern used worldwide to calibrate and evaluate video signal quality and color accuracy in broadcast and production environments.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CCIR System B (625-line PAL/SECAM TV standard) Target entity description: CCIR System B is an analog television broadcasting standard that defines a 625-line, 50 Hz VHF transmission system widely used in conjunction with PAL and SECAM color encoding across many countries.
-
A.
NTSC color television standard
The NTSC color television standard is an analog broadcast system developed in the United States that defined how color video signals were encoded and transmitted for decades of North American television.
-
B.
CCIR
CCIR (Comité Consultatif International des Radiocommunications) was the former international standards body responsible for coordinating and recommending technical standards for global radio and broadcasting communications.
-
C.
DVB broadcasting standards
DVB broadcasting standards are a family of international specifications that define how digital television signals are transmitted, compressed, and received over terrestrial, satellite, and cable networks.
-
D.
DVB-T
DVB-T is a widely used digital terrestrial television broadcasting standard that delivers multiple TV and radio channels over conventional aerials.
-
E.
SMPTE color bars
SMPTE color bars are a standardized television test pattern used worldwide to calibrate and evaluate video signal quality and color accuracy in broadcast and production environments.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
analog television broadcasting standard
ⓘ
television system ⓘ |
| application | terrestrial broadcast television ⓘ |
| audioStandard | 5.5 MHz FM mono audio carrier ⓘ |
| audioVideoRelationship | intercarrier sound system ⓘ |
| channelBandwidth | 7 MHz ⓘ |
| colorCompatibility |
PAL
ⓘ
SECAM ⓘ |
| colorSubcarrierStandard |
PAL color subcarrier at 4.43 MHz when used with PAL
ⓘ
SECAM FM subcarriers when used with SECAM ⓘ |
| colorSystem | used primarily with PAL and SECAM color encoding ⓘ |
| compatibility | 625-line monochrome television ⓘ |
| era | analog television era ⓘ |
| fieldOrder | even and odd fields alternating ⓘ |
| fieldRate | 50 Hz ⓘ |
| fieldStructure | 2:1 interlace ⓘ |
| frameRate | 25 frames per second ⓘ |
| geographicalUse |
Europe
ⓘ
Middle East ⓘ parts of Africa ⓘ parts of Asia ⓘ |
| horizontalLineFrequency | 15.625 kHz ⓘ |
| lineCount | 625 ⓘ |
| linesPerField | 312.5 ⓘ |
| lineStandard | 625-line, 50 Hz system ⓘ |
| organizationStandardizedBy | CCIR ⓘ |
| predecessor | earlier 625-line monochrome standards ⓘ |
| region | VHF band ⓘ |
| relatedStandard |
CCIR System D
ⓘ
CCIR System G ⓘ CCIR System H ⓘ |
| scanType | interlaced ⓘ |
| signalPolarity | negative video modulation ⓘ |
| soundCarrierOffset | +5.5 MHz from vision carrier ⓘ |
| soundModulation | frequency modulation ⓘ |
| standardizationBody | International Telecommunication Union ⓘ |
| standardType | VHF terrestrial broadcast system ⓘ |
| status | largely superseded by digital television standards ⓘ |
| successorOrganization |
ITU Radiocommunication Sector
ⓘ
surface form:
ITU-R
|
| usedFor | PAL/SECAM 625-line broadcasting in VHF bands ⓘ |
| usedWith |
PAL
ⓘ
surface form:
PAL-B
SECAM ⓘ
surface form:
SECAM-B
|
| verticalFrameFrequency | 25 Hz ⓘ |
| videoBandwidth | approximately 5 MHz ⓘ |
| visionModulation | negative amplitude modulation ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CCIR System B (625-line PAL/SECAM TV standard) Description of subject: CCIR System B is an analog television broadcasting standard that defines a 625-line, 50 Hz VHF transmission system widely used in conjunction with PAL and SECAM color encoding across many countries.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.