Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Counting animate or inanimate entities
Patent
1982-10-15
1985-10-29
Miller, Stanley D.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Counting animate or inanimate entities
G06M 1102
Patent
active
045504172
ABSTRACT:
An apparatus for counting numbers of microscopic corpuscles such as blood cells, comprising an optical system, a driving mechanism, a photoelectrical convertor means and a counter means. The optical means is adapted to illuminate a sample containing the corpuscles so as to irradiate magnified images onto a charge coupled device (CCD) as the convertor means having elements lined up in a row in an X-direction perpendicular to a Y-direction in which the sample is moved by the driving mechanism whereby X-directional scanning is automatically executed by the CCD without moving the sample while Y-directional scanning is conducted with a sample holder continuously moved by said mechanism comprising a drive motor and a cooperating spring. The CCD is adapted to detect the number of corpuscle images contained in each scanning line in the X-direction and thereby to produce electric signals fed to the counter means, which comprises electronic circuits for summing up these signals in respect of Y-direction.
REFERENCES:
patent: 2939633 (1960-06-01), Robinson
patent: 3736432 (1973-05-01), Sweet
patent: 3811036 (1974-05-01), Perry
patent: 4191940 (1980-03-01), Polcyn et al.
Kobayashi Tetsuya
Kosuge Yasutaka
Nunogaki Yoshiaki
Miller Stanley D.
Ohralik K.
Sanki Engineering Co., Ltd.
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