The character reading system is provided with a pretreating system for a pattern recognition and a picture translation wherein a pattern signal obtained by scanning a character pattern on a recording medium is processed at such high threshold level that does not contain a noise component to form a primary kernel pattern, and the pattern signal is processed at such low threshold level that contains said character pattern to obtain a reference pattern. The kernel pattern and the reference pattern ...

The device has a semi-circular housing 10 defined by a linear wall 14 and an arcuate wall 12, with an inturned edge 13, 15 on one side of the housing. Beta light strips 18 are located in the recess beneath the edges 13, 15 so that graduations on the internal walls of the housing can be viewed at night through an opening 16 in the housing.

A method of teaching reading, and a prerecorded tape or like unit for use therein are described. A student scans the printed words in a book while the words are simultaneously being audibly reproduced by a magnetic tape and heard by the student while he scans said words. The recorded material on said magnetic tape has a plurality of predetermined spaced audible signals which serve as an indication that he is to follow written or oral instructions which had been given at the start of the session ...

A wavelength reading apparatus for a monochromator comprises a monochromator utilizing a dispersion element for dispersing light in accordance with its wavelengths, a dispersion element driver unit for rotating the dispersion element to effect the tuning wavelength scanning operation of the monochromator and a wavelength counter for adding or subtracting a pulse, which is produced each time when the tuning wavelength of the monochromator changes by a predetermined wavelength increment, depending...

A method of thermoluminescent dosimetry employing infrared radiation heating of a dosimeter. An incandescent lamp is used for the source of infrared radiation. The dosimeter is provided with a infrared radiation absorbing layer connected thermally to a thermoluminescent material layer. The infrared radiation absorbing layer is irradiated with infrared radiation, so that thermoluminescent material is not directly irradiated. The lamp is initially powered whereby the dosimeter is heated by infrare...

A reading stand for use in the bathtub on which is mounted a transparent waterproof container that holds the reading material and which has clips that are used to turn the pages without wetting them.

For convenience, speed and economy in the reading of submerged water meters, as illuminated reading scope is provided which is extendable to draw in water. The scope is compressed after being placed over the face of the meter to expel the water from its interior in a jet stream which positively flushes the face of the meter so as to render it readily readable. The scope is simple and economical.

An improved image reading apparatus which is so arranged that, by providing marks shaded to a predetermined density or darkness for setting a required reading area on an image reading surface, the start mark and end mark are detected by a solid state image sensor for supplying image signals within the required reading range into memory unit based on results of the on detection so as to reduce the memory capacity of the memory unit.

This disclosure concerns to apparatus for reading drawings. The apparatus of this invention is an apparatus for reading symbols on a drawing wherein the drawing comprises a preprinted lattice pattern with orthogonal lines forming unit rectangular areas and each symbol or portions thereof is drawn within one or more of the unit area each symbol is drawn so that the portion of the symbol within a unit area has a predetermined size and position with respect to the sides of the unit area. The appara...

A coordinate reading device including magnetostrictive vibration transmission media to attain coordinate readings of analog figures. A fixed magnetizing coil is wound about or placed on the surface of the media to automatically magnetize the media. A preparatory exciting system excites the exciting coil of the media before an effective excitation pulse is applied to the coil by suitable delay circuits.