Facsimile and static presentation processing – Facsimile – Facsimile measuring – testing – or calibrating
Patent
1994-03-07
1995-04-11
Rogers, Scott A.
Facsimile and static presentation processing
Facsimile
Facsimile measuring, testing, or calibrating
358409, 358434, 358442, 358296, 358300, 395114, H04N 132, H04N 123
Patent
active
054063868
ABSTRACT:
A video clock is supplied from the sync circuit of a controller. In response to this video clock, an external unit controller outputs image data supplied from a host unit. A delay amount between the video clock and the image data is determined by a phase correcting section, and the phase correcting section generates a corrected image area signal based on the delay amount. The delay amount of the video clock is corrected on the basis f the corrected image area signal. A printer engine forms an image on an image bearing member on a basis of the image data provided in response with the corrected video clock. In this manner, the video clock can be synchronized with the externally supplied image data with a simple arrangement without changing the video clock output to the external unit controller and adding a signal delay circuit.
REFERENCES:
patent: 4290085 (1981-09-01), Kolker
patent: 4691237 (1987-09-01), Shimizu
patent: 5162917 (1992-11-01), Sugishima
patent: 5283662 (1994-02-01), Nakajima
Kabushiki Kaisha Toshiba
Rogers Scott A.
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