Image input/output apparatus

Details Image input/output apparatus Image input/output apparatus

1988-09-13

1990-09-25

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

235472, 358472, 358473, G06K 922

Patent

active

049598716

ABSTRACT:
A manually movable input/output peripheral device is provided which includes an input/output head or transducer which is manually movable by the user, a guide member which controls the direction of movement of the transducer, and distance measuring device. Data transfer between the transducer and a recording surface is controlled at a rate dependent on the speed which the transducer is moved across the recording surface. Thus, the device is insensitive to variations in operating speed.

REFERENCES:
patent: 4260979 (1981-04-01), Smith
patent: 4349730 (1982-09-01), Pfeifer et al.
patent: 4377741 (1983-03-01), Brekka et al.
patent: 4523235 (1985-06-01), Rajchman
patent: 4574317 (1986-03-01), Scheible
patent: 4626925 (1986-12-01), Toyoda
patent: 4652937 (1987-03-01), Shimura et al.
patent: 4684998 (1987-08-01), Tanioka et al.
patent: 4703186 (1987-10-01), Nakayama et al.
patent: 4707747 (1987-11-01), Rockwell, III
Bantz et al, "Pen-Like Device for Input/Output", Aug.-1979, IBM Technical Disclosure Bulletin, vol. 22, No. 3, pp. 1295-1297.

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