摘要:
In an image processing apparatus, after a current band of an image has been read, an original is fed at a distance of the upper half band width of the current band. When the next band is read, the current band at the lower half band width is overlappingly read. The band data at the lower half band width of the current band is stored in a memory, and the next band is read. Averaging processing or function processing is applied to the band data which has been overlappingly read.
摘要:
This invention has as its object to provide an image processing apparatus which can implement high-precision, high-resolution image scanning, and can prevent disturbance of the scanned image, when it mounts a scanner unit. To achieve this object, an image processing apparatus which has a recording head detachable from a main body and/or a scanner unit detachable from the main body, has a carriage for supporting and moving the recording head or scanner unit, an encoder for measuring the moving position of the carriage, and outputting a signal indicating that the carriage is located at a predetermined moving position, and a signal generation circuit for generating a scanning time signal of the scanner unit in accordance with the signal output from the encoder upon scanning an image by the scanner unit.
摘要:
In reading an original by mounting reading means (scanner unit) on a recording apparatus, the advancing width of the original is so reduced that the reading bands k, k+l, . . . , are partially overlapped. For example in the color image reading, in generating the data of the (k+1)-th band, the data of a range overlapped with the k-th band are corrected by the data of the k-th band (for example by simple averaging), thereby achieving image reading without bandwise density fluctuation regardless of the reading mode and the original size.
摘要:
A scanner head cartridge is constituted by a lower case which houses optical parts required for reading and electrical parts required for image processing, and an upper case which can engage with the lower case to cover the open surface of the lower case, and a positioning guide means used upon inserting the cartridge into the carriage is formed on the surface of the upper case, that is opposite to the lower case. A scanner head cartridge is held on a carriage that moves an ink head cartridge of an ink-jet printer for performing recording on a recording medium, in place of the ink head cartridge, and can be commonly used using a common base unit even in carriages which mount different ink head cartridges and have different shapes. In addition, the scanner head cartridge allows easy adjustment of the optical system.
摘要:
Disclosed is an information reading/printing apparatus in which a carriage supports and moves a printing unit for printing information on a printing medium and a reading unit for reading information. The position of the carriage moved in each of left-to-right and right-to-left directions is detected.
摘要:
Disclosed is an image reading apparatus in which the band width for reading by one scanning is variable in accordance with the original size, the reading mode, etc. R, G, and B image data of the k-th band is successively read in one-band width to store image data R1, G1, and B1 of pixel coordinates X(n, m). Then, the original is fed so as to cause partial overlapping of the (k+1)-th band with a lower predetermined pixel region of the k-th band, and R, G, and B image data of the (k+1)-th band is read in one-band width to successively store image data R2, G2, and B2 of pixel coordinates X(n, m′). The image data obtained through overlap reading of the k-th band and the (k+1)-th band is averaged to calculate correction image data, which is transferred to a host computer along with along other image data which has not been averaged as read image data. And, it is possible to optimize reading time according to the kind of original, reading mode, etc., without involving a deterioration in image quality.
摘要:
The invention provides an image reading apparatus for performing high-precision image read by canceling out noise based on digital signal processing and superimposed on an effective portion of an analog signal. The image reading apparatus superimposes digital-based data and data-clock-based fixed noise on an sensor output signal in reference data acquiring operation as well to output data with the fixed data being canceled out in image read-operation.
摘要:
All of reference data are stored into a memory of a device main body and the reference data according to a condition at that time is written into a reference data memory built in an image processing IC of a scanner cartridge. By correcting an image signal by using the reference data, an image can be read at a high quality without increasing a memory capacity in the cartridge.
摘要:
An information apparatus comprises a main apparatus and a subsidiary apparatus which are separable. The main and subsidiary apparatuses has electrical connectors which are connected substantially automatically when the two apparatuses are attached. The connectors are provided with covers which are movable in association with the attaching procedure. Thereby, the connectors can be kept clean and free from dust contamination or breakage, and the reliability of the information apparatus can be enhanced.
摘要:
A coordinate input apparatus includes a wireless vibrating input pen for alternately generating a first vibration having a first frequency and a second vibration having a second frequency different from the first frequency. A vibration transmitting member is provided for transmitting the first and second vibrations input from the vibrating input pen by contacting the vibrating input pen. A plurality of vibration detectors are coupled to the vibration transmitting member for detecting the first and second vibrations transmitted through the vibration transmitting member. Processing circuitry is included for deriving at least one coordinate of a position of the vibrating input pen on the transmitting member according to a transmission delay time between the first and second vibrations detected by the vibration detectors. Transmission and reception of timing information between the vibrating input pen and the main body of the apparatus is not required. Hence, it becomes possible to provide a wireless vibrating input pen.