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Application filed by Toshiba CorpfiledCriticalToshiba Corp
Priority to JP15736576ApriorityCriticalpatent/JPS5382223A/en
Publication of JPS5382223ApublicationCriticalpatent/JPS5382223A/en
PURPOSE: To perform interlaced scanning surely by supplying only pulses of the double horizontal frequency in vertical synchronizing signals and making signals which drive a vertical oscillator circuit equivalent between fields.
Appliance for the production of the television sign of the mac standard and to encryption this sign at the time of its production, appliance for the production of the ntsc standard television sign and to decify this sign at the time of its production, process to produce simultaneously signal of the session. mac and process to produce simultaneously decorated ntsc standard television sign