Audio and video signal monitor apparatus

Details Audio and video signal monitor apparatus Audio and video signal monitor apparatus

1995-06-28

1996-04-02

Kostak, Victor R.

Television

Monitoring, testing, or measuring

Monitor

348563, 348564, H04N 5445

Patent

active

055045227

ABSTRACT:
A signal monitor apparatus displays an envelope image of an audio signal together with an image of a related video signal on a picture screen of a monitor. When applied to a system including a plurality of signal sources and corresponding systems, the signal monitor apparatus can monitor the whole system as a whole and therefore the operator can reliably monitor abnormalities, such as a wire break or other trouble. This signal monitor apparatus comprises signal sources, an A/D converter (14) for converting audio signals from the signal sources into digital signals, a decimation filter (15) and a rounder (16) for compressing timebases of the outputs from the A/D converter (14), a data converter (17), a RAM (18), a timing controller (19) and a video circuit (21) for converting the compressed outputs into video signals, a video mixer (23) for mixing original video signals and the converted audio signal converted into a video signal and a monitor (24) for displaying a mixed output.

REFERENCES:
patent: 4149189 (1979-04-01), Nagai
patent: 4685065 (1987-08-01), Braun et al.
patent: 4723162 (1988-02-01), Hamering
patent: 4837623 (1989-06-01), Motoyama

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