Device and method for automatic channel memory utilizing picture

Details Device and method for automatic channel memory utilizing picture Device and method for automatic channel memory utilizing picture

1995-06-29

1997-02-18

Peng, John K.

Television

Basic receiver with additional function

For display of additional information

348732, 348731, H04N 545

Patent

active

056045433

ABSTRACT:
This invention relates to a device for automatic channel memory which comprises a first synchronization part for tuning channels displayed on a POP frame, a second synchronization part for tuning channels displayed on a main frame, a first intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of a synchronized channel by the first synchronization part, a second intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of the synchronized channel by the second synchronization part, a microcomputer for generating control signals in response to a key signal, an OSD processing part for generating required OSD signals in response to the control signals of the microcomputer, a switching part for selecting the signals from the first and the second intermediate frequency processing parts and external signals in response to the control signal of the microcomputer, a chroma part for processing the chrominance signal of a first signal selected by the switching part and of the OSD signals generated in the OSD processing part, and a POP processing part for processing a second signal selected by the switching part to be displayed onto the POP frame.

REFERENCES:
patent: 4855833 (1989-09-01), Kageyama et al.
patent: 5045946 (1991-09-01), Yu
patent: 5130800 (1992-07-01), Johnson et al.
patent: 5144438 (1992-09-01), Kim
patent: 5247365 (1993-09-01), Hakamada et al.
patent: 5420642 (1995-05-01), Baek

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