Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
secure speech system
|
| gptkbp:activeYearsStart |
1943
|
| gptkbp:component |
dozens of racks
|
| gptkbp:decommissioned |
1946
|
| gptkbp:developedBy |
gptkb:Bell_Labs
|
| https://www.w3.org/2000/01/rdf-schema#label |
SIGSALY
|
| gptkbp:inventedBy |
gptkb:Alec_Reeves
Alan Turing (contributed to cryptanalysis) |
| gptkbp:lastOperational |
1946
|
| gptkbp:location |
gptkb:London
gptkb:Pentagon various Allied command centers |
| gptkbp:nickname |
gptkb:The_Green_Hornet
|
| gptkbp:notableFor |
first use of PCM in speech
first use of digital voice encryption |
| gptkbp:numberBuilt |
12
|
| gptkbp:powerSource |
30 kW
|
| gptkbp:purpose |
secure voice communication
|
| gptkbp:relatedTo |
cryptography
digital signal processing secure communications |
| gptkbp:technology |
gptkb:pulse-code_modulation
voice encryption frequency shift keying |
| gptkbp:usedBy |
gptkb:Allied_forces
|
| gptkbp:usedDuring |
gptkb:World_War_II
|
| gptkbp:weight |
over 50 tons
|
| gptkbp:bfsParent |
gptkb:Secret_Communication_System
|
| gptkbp:bfsLayer |
5
|