Band width compressing/reproducing system with fields for differ

Details Band width compressing/reproducing system with fields for differ Band width compressing/reproducing system with fields for differ

1989-08-01

1991-05-28

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358141, H04N 712

Patent

active

050199021

ABSTRACT:
At a time of band width compression, an input signal is separated into a horizontal high frequency component H and a horizontal low frequency component L by means of an LPF and an adder. The component H is subjected to in-frame averaging by an in-frame average circuit. The component L is delayed by one field by a field delay circuit which contains a component to provide smooth motion. The delayed output is added to the in-frame average output in one field by an adder. In the other field, a difference in the horizontal low frequency component between fields is attained by a field delay circuit and an adder. Accordingly, in one field a signal containing the component L and the component H subjected to in-frame averaging is attained. In the other field, a signal containing only the component L having gone through a process of obtaining the field-to-field difference is attained. At a time of band width reproduction, an input signal is output as it is in one field through two switch circuits. In the other field, the input sighnal is added to an input signal in the former field by a field delay circuit and an adder. The added output is transferred through a switch.

REFERENCES:
patent: 4485401 (1984-11-01), Tan
patent: 4621287 (1986-11-01), Reitmeier et al.
patent: 4855811 (1989-08-01), Isnardi
patent: 4888641 (1989-12-01), Isnardi et al.
patent: 4897722 (1990-01-01), Flory
K. Kawai, S. Yasuki, N. Sakamoto. "A Foundmental Study of 3 Dimensional Frequency Division Multiplexing", ITEJ TEchnical Report vol. 12, No. 30, pp. 55-60, 1988.

Affiliated with

Also associated with

Rating

Band width compressing/reproducing system with fields for differ does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Band width compressing/reproducing system with fields for differ, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Band width compressing/reproducing system with fields for differ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-39644