Automatic selection method and apparatus for a video signal duri

Details Automatic selection method and apparatus for a video signal duri Automatic selection method and apparatus for a video signal duri

1992-01-29

1994-01-25

McElheny, Jr., Donald E.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 5782

Patent

active

052820483

ABSTRACT:
An image recording/reproducing apparatus for automatically selecting a video signal during dubbing operations includes an input device for applying a user command, a path control device for selecting one of a source video signal output by a video signal source and an external video signal applied to an input/output terminal to permit the selected video signal to be applied to a record/playback processor, a signal presence detector for detecting whether the external video signal applied to said input/output terminal is present in response to a dubbing mode request command applied by the input device and a microcomputer for controlling the path control device based on output signals of the signal presence detector and the input device. According to one aspect of the present invention, the apparatus can be included in a VCR having a camera or a broadcast receiving apparatus, whereby the apparatus selects one of an external video signal or an output from the camera or broadcasting receiving apparatus. A method for automatic selection of a video signal includes a dubbing mode request recognizing step for identifying a request for setting up a dubbing mode and a selection step for selecting either the video signal from the video signal source or the video signal from an external source based on the user's selection and the presence of an external video signal, once the dubbing mode has been requested.

REFERENCES:
patent: 4179712 (1979-12-01), Opelt
patent: 4528600 (1985-07-01), Ishiguro et al.
patent: 4618895 (1986-10-01), Wright
patent: 5161019 (1992-11-01), Emanuel

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