Image reading apparatus
AssigneeSeiko Epson Corporation
InventorTakanobu Kono
Life of this patent
Estimating the term…
Abstract
In a flat bed type scanner, while a control unit (24) for generating a secondary control signal and for controlling a CCD (22) is separated from an image processing ASIC (46) for generating a primary clock signal as a base signal of the secondary control signal, this scanner is arranged so as to generate the secondary control signal having the short pulse width from the primary clock signal having the long pulse width. This scanner employs such an arrangement that the primary clock signal having the long pulse width is transmitted via an FFC (40) which electrically connects the image processing ASIC (46) with the control unit (24).
Claims6
An image reading apparatus comprising:
- an image input unit for generating an analog image signal corresponding to optical density information of an original;
- an A/D converter for converting the analog image signal inputted from the image input unit into a digital image signal;
- an image processor for generating a primary control signal and for executing an image process operating based on the digital image signal inputted from the A/D converter;
- a controller for generating a secondary control signal from the primary control signal for controlling the image input unit based on the generated secondary control signal, a pulse width of the secondary control signal being shorter than a pulse width of the primary signal;
- and
- a wiring member for electrically connecting the image processor to the controller for transmitting the primary control signal therethrough.
Dependencies are inferred from the claim text.