Discrete object searching apparatus for search of discrete files

Details Discrete object searching apparatus for search of discrete files Discrete object searching apparatus for search of discrete files

1990-10-04

1991-11-05

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

250200, 455603, H04Q 700

Patent

active

050633805

ABSTRACT:
An apparatus is disclosed which enables efficient search of a particular file out of a multiplicity of files arranged on shelves, such that a display light, such as light-emitting diode, lights to externally indicate the location of the file only when a signal receiver attached to the file receives a predetermined signal from a signal transmitter connected to a computer. More particularly, a discrete object searching apparatus is provided for searching and locating discrete files wherein the signal transmitter and the signal receiver are, respectively, an infrared signal transmitter and an infrared signal receiver. An optical receptor portion of the receiver is provided with a means for cutting off visible light to eliminate wasteful use of the battery of the receiver. The receiver has no amplifier portion, the receptor portion being thus directly connected to a data processing portion in the receiver. The apparatus can perform not only search of a discrete file, but also search of a group of files. Further, the apparatus permits two-way communication so that the location of the file can be displayed on the display screen of the computer, whcih facilitates easy management of file inventory.

REFERENCES:
patent: 3906232 (1975-09-01), Meihofer
patent: 3937949 (1976-02-01), Ishikawa et al.
patent: 4115006 (1978-09-01), Reymond et al.
patent: 4276472 (1981-06-01), Costantino et al.
patent: 4392132 (1983-06-01), Derks
patent: 4476469 (1984-10-01), Lander
patent: 4814742 (1989-03-01), Morita et al.

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