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Publication of BE527373ApublicationCriticalpatent/BE527373A/xx
H04N5/05—Synchronising circuits with arrangements for extending range of synchronisation, e.g. by using switching between several time constants
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N5/00—Details of television systems
H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will