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

1996-04-15

1999-11-02

Lee, Michael

Television

Receiver circuitry

Tuning

348732, 348734, 348570, H04N 144

Patent

active

059780509

ABSTRACT:
The present invention relates to televisions (TV) and video tape recorders (VTR) which 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 different channels frequencies. Thus, independant systems or additional programs for multimode systems are not necessary.

REFERENCES:
patent: 5103314 (1992-04-01), Keenan
patent: 5161023 (1992-11-01), Keenan
patent: 5182646 (1993-01-01), Keenan
patent: 5508762 (1996-04-01), Lee
patent: 5532832 (1996-07-01), Hailey et al.

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