Framing pulse generator for facsimile recorder

Details Framing pulse generator for facsimile recorder Framing pulse generator for facsimile recorder

H - Electricity

04

N

350/18

H04N 1/04 (2006.01) H04N 1/14 (2006.01)

Patent

CA 1100224

Abstract of the Disclosure A facsimile recorder using-an endless scanning belt which carries styli for electrically marking graphic signals on a recording web has a pulley for the belt at the finish of a scan across the web. The belt includes conductive means connected to or integral with the stylus which contacts the pulley as the stylus passes over the pulley. During the pass the stylus touches a contact adjacent the pulley thereby completing a framing pulse generating circuit through the pulley and contact. This recorder framing pulse is compared with a synchronization (sync) pulse of an incoming facsimile signal and used to synchronize the scanning belt with the signal.

294002

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