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:
Oct. 04, 1994
Filed:
Sep. 21, 1993
Duk-Soo Kim, Kyungki, KR;
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
A printing control apparatus compatible with printing systems of a laser scanning unit type and a light emitting diode type contemplates a synchronizing signal supplying circuit which receives at least one signal out of a light emitting diode horizontal synchronizing signal generated when a period of a horizontal synchronizing signal of a light emitting diode type coincides with a given counting period and a beam detecting signal, and supplying a horizontal synchronizing signal corresponding to a printing system in response to a synchronizing select signal. A clock generating circuit generates a reference clock necessary for the generation of a plurality of signals and generates a video clock from the reference clock in response to the horizontal synchronizing signal and a latch driving signal from the reference clock. A latch signal generator generates a data latch signal having a given period from the reference clock in response to the latch driving signal. A strobe signal generator generates strobe signals to emit a light emitting diode array. A data output circuit generates video data to be printed according to a mode select signal. A control signal generator provides the synchronizing select signal to the synchronizing signal supplying circuit by latching an external control signal, provides the mode select signal to the data output circuit, and provides a laser diode control signal and a laser scanning unit motor control signal to the laser scanning unit.