Requirements for Unity of Application - Japan Patent Office

[Example 15]
[Title of the Invention]
Picture signals transmission device and receiving device
[Claims]
1. Picture signals transmission device comprising more than one predictive encoder
(12-1-12-N) encoding input picture signal with different predictive function, a run-length
encoder run-length (17) encoding the most suitable predictive encoded signals of the
highest hitting ratio selected from each predictive encoded signals gained, and a sending
controlling circuit (19) adding discrimination decision signals expressing predictive function
of the above mentioned the most suitable predictive encoded signals, which is output from
a discrimination decision circuit (19), to the output signals from the said run-length encoder
(17) and sending. (See Figure 1)
2. A picture signals receiving device comprising a receiving circuit (31) receiving predictive
encoded and run-length encoded picture signals and discrimination decision signals
expressing the predictive function at the above mentioned predictive encoding, a
run-length decoder (33) run-length decoding the picture signals output from the circuit (31),
encoders (35-1-35-N) for prediction decoding the output of said decoder (33) with different
predictive functions, and a selective means (36) selecting and removing only decoding
output for the above mentioned discrimination decision signals, out of the decoding output
of the above mentioned each predictive decoder (35-1-35-N) (See Figure 2)
[Excerpt from Detailed Description of the Invention and Drawings]
This invention concerns a signal transmission system transmitting highly compressed
signals. Since a public communication circuit is open, the development of a means sending
picture signals highly efficiently such as facsimile in a limited zone is desired. Although a run
length encoding system in which continuous length of 1 or 0 is encoded is general at present,
high compressibility is not obtainable. In this invention, out of more than one predictive encoder
used, the output of the predictive encoder of the highest hitting ratio is run-length encoded and
transmitted, so the high compressibility can be obtained.
Figure 1
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