| 摘要 |
A pixel data encoder for use in a facsimile apparatus features a first in first out memory for storing one-dimensional binary pixel data sequences in synchronism with a data acquisition clock; a run length determiner coupled to receive the one-dimensional binary pixel data sequences stored in the first in first out memory, the run length determiner calculating a run length for each of the one-dimensinal binary pixel data sequences received; and an encoding section which issues a one-bit address signal for indicating raw data will be issued and N-bit raw data in the event that the run length is less than a predetermined run length N, the encoding section issuing an address code and a remainder code in the event that the run length exceeds N, the address code consisting of consecutive binary level "1"s with a bit length (M-2) and a binary level "0", and the remainder code consisting of a binary sequence representing the run length wherein the most significant bit of the binary sequence is omitted, M representing a total number of binary digits of the run length.
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