Controlling method for a multisystem by a mode-conversion key

Details Controlling method for a multisystem by a mode-conversion key Controlling method for a multisystem by a mode-conversion key

1991-05-17

1996-04-16

Groody, James J.

Television

Receiver circuitry

Remote control

348732, 348731, 348570, H04N 144

Patent

active

055087620

ABSTRACT:
Televisions (TV) and video tape recorders (VTR) carry out the tuning operation by using a microcomputer. The microcomputer converts the modes in sequence of conventional air mode, cable TV Standard mode, cable TV Harmonic Relate Carrier mode, and multibroadcasting mode according to the inputted signal from a key matrix to control both the conventional and multibroadcasting modes which have the different channel frequencies from each other. Thus, independent systems or additional programs for multimode systems are not necessary.

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