The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 1979
Filed:
Jun. 15, 1977
Tadasu Takeuchi, Tokyo, JP;
Abstract
In a facsimile communication system wherein a document is scanned along its line path to generate a binary signal waveform for each line scan and the length of black or white run of each binary digit in the waveform is translated into a corresponding code for transmission, the binary signal waveform is equally divided into a plurality of data blocks which are discriminated between significant data blocks each containing at least one 'black' data bit and insignificant data blocks each being entirely at 'white' level. Only the significant data blocks are counted to measure the length of recording time for the corresponding line scan. The end of the measured time is detected to proceed with the next line scan so that the next sequence of codes is transmitted at an instant which is variable to correspond to a variable recording time at the receiver station where the received codes are decoded to recover the original waveform for recording only the significant data blocks while disregarding the insignificant data blocks.