Information processing apparatus having a common A/D converter f

Details Information processing apparatus having a common A/D converter f Information processing apparatus having a common A/D converter f

1989-08-22

1991-11-05

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358343, 358909, H04N 7093

Patent

active

050634470

ABSTRACT:
An information processing apparatus having a common A/D converter for the image and audio signals includes image pickup circuitry for converting an image into an image signal. Preferably, the image pickup means has an effective period and an ineffective period (e.g. a horizontal blanking interval). Audio pickup circuitry is provided for converting sound into an audio signal. A common A/D converter is provided for A/D converting both the image signal and the audio signal. Preferably, the image signal is A/D converted during the effective image pickup period, and the audio signal is A/D converted during the effective image pickup period. Preferably, the A/D converter has different sampling frequencies for the image and audio signals.

REFERENCES:
patent: 3446914 (1969-05-01), Hodge
patent: 4163248 (1979-07-01), Heitmann
patent: 4442461 (1984-04-01), Shirgi et al.
patent: 4514760 (1985-04-01), Balaban et al.
patent: 4763206 (1988-08-01), Takahashi et al.
patent: 4791477 (1988-12-01), Blazek et al.
patent: 4851909 (1989-07-01), Noska et al.

Affiliated with

Also associated with

Rating

Information processing apparatus having a common A/D converter f does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information processing apparatus having a common A/D converter f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information processing apparatus having a common A/D converter f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-502454