Sync apparatus for image multiplex transmission system

Details Sync apparatus for image multiplex transmission system Sync apparatus for image multiplex transmission system

1986-07-17

1987-12-08

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358146, 358147, 375110, 375118, 371 42, 370100, H04N 708, H04N 7087, H04N 7093

Patent

active

047121319

ABSTRACT:
A sync apparatus for an image multiplex transmission system includes a first means for determining a fetch phase of each teletext signal packet, and a second means for re-determining the fetch phase when the actual phase of the teletext signal packet satisfies a predetermined condition. In this sync apparatus, when synchronization of the teletext signal packets has discontinuity, the first means determines the packet fetch phase, and when it has continuity, the second means determines the packet fetch phase.

REFERENCES:
patent: 4202012 (1980-05-01), Hirashima
patent: 4626913 (1986-12-01), Gurumurthy
patent: 4672639 (1987-06-01), Tanabe et al.

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