초록 ▼

In an HDTV receiver which can be used with both an 8-VSB (Vestigial Side Band) system and a 16-VSB system, since there are so many common modulation parts which are commonly operated between the two systems, an operation mode is automatically switched by using the autocorrelation of the operation mo

In an HDTV receiver which can be used with both an 8-VSB (Vestigial Side Band) system and a 16-VSB system, since there are so many common modulation parts which are commonly operated between the two systems, an operation mode is automatically switched by using the autocorrelation of the operation modes of the received data without requiring manual operation, and signals for controlling the entire system are thereby realized efficiently and economically in operating the HDTV receiver.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for switching an operation mode of an HDTV system operating a plurality of multilevel modulation/demodulation systems, comprising:a mode switching unit for receiving a modulated input signal; selecting one operation mode from a plurality of operation modes ba

[ What is claimed is:] [1.] An apparatus for switching an operation mode of an HDTV system operating a plurality of multilevel modulation/demodulation systems, comprising:a mode switching unit for receiving a modulated input signal; selecting one operation mode from a plurality of operation modes based upon an autocorrelation of the operation modes for the multilevel modulation demodulation systems; and supplying a control signal and a sync control signal corresponding to the selected operation mode to the apparatus operated when switching the system between the plurality of multilevel modulation/demodulation systems.