Video signal transmitting method and equipment of the same

Details Video signal transmitting method and equipment of the same Video signal transmitting method and equipment of the same

1990-10-22

1992-10-27

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358142, 370 941, 370 91, 371 371, 371 381, 371 391, H04N 704, H04N 708

Patent

active

051594528

ABSTRACT:
A video signal transmitting method comprising: a sending method including the steps of: dividing an analog video signal in a unit corresponding to integer times of a number of bits composing an information field of one packet in packet transmission and converting into a digital video signal, forming a digitalized video signal into a plurality of packets, forming a plurality of packets into a first packet block in M lines.times.N columns, adding an error correction code which corrects a longitudinal error of data in a first packet block as a second packet block in P lines.times.N columns in an (M+1)th line and thereafter, and sending a packet; and a receiving method including the steps of: recomposing the same packet block as that composed on a sending side from plurality of received packets, recovering a video signal with packet loss information from an exchange and an error correction code formed into a packet, and regenerating an analog video signal from a digital video signal after recovery.

REFERENCES:
patent: 4661956 (1987-04-01), Izumita et al.
patent: 4670881 (1987-06-01), Imoto
patent: 4688225 (1987-08-01), Fukami et al.
patent: 4760576 (1988-07-01), Sako
patent: 4779276 (1988-10-01), Kashida et al.
patent: 4956709 (1990-09-01), Richer et al.
patent: 4996690 (1991-02-01), George et al.

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