| Patent Number |
Title Of Patent |
Date Issued |
| 4835382 |
Optical code reading device |
May 30, 1989 |
| An optical code reading device, including a unit having, for each of the tracks of the coded element, a pair of photodiodes, a differential amplifier receiving the outputs of the photodiodes and the trigger connected to the output of the amplifier, a shift register receiving the outp |
| 4769630 |
Incremental optical code reader, particularly of the wholly integrated type |
September 6, 1988 |
| An incremental optical code reader of the wholly integrated type including a reading assembly, a pair of photodiodes, a differential amplifier receiving the outputs of the photodiodes and a trigger connected to the output of the amplifier. An electronic assembly with "exclusive OR" logic |
| 4769537 |
Analog position-indicating optical encoder |
September 6, 1988 |
| An analog position indicating optical encoder is provided including: an element (1) with a band (2) having a transparency which substantially is complete with respect to two wavelengths (1.sub.1 and 1.sub.2) but varies as a function of the angular or linear distance for a third wavelengt |
| 4719346 |
Optical position locating apparatus with bidirectional light transmission |
January 12, 1988 |
| An optical position locating apparatus is provided which includes a first light reader with several photodetectors for reading the tracks of a disk, a first light emitter excited by the first light reader and a self contained power supply source. A module is provided which comprises a |
| 4713541 |
Optical position locating device |
December 15, 1987 |
| An optical position locating device is provided comprising a light emitter, a bidirectional optical coupler, an optical fiber, a series of micromirrors disposed between a fiber and disk carrying the coded tracks (one mirror opposite each track). A control unit successively brings one |
| 4644158 |
Device for optical code reading, by diascopy, and a process for manufacturing same |
February 17, 1987 |
| The device comprises a metal chassis (2a) bent into a U shape and cut out with a light support (17), a support for a fluid tight box, including within the box an integrated circuit chip (27), and an indented lateral flange (22, 23, 24); the light source is shown at (34). The chassis (2a) |
| 4622461 |
Device for optical code reading, by diascopy, and a process for manufacturing same |
November 11, 1986 |
| The device comprises a metal chassis (2a) bent into a .quadrature. shape and cut out with a light support (17), a support for an integrated circuit chip (27) and an indented lateral wing (22, 23, 24); the light source is shown at (34). The chassis (2a) with the light source and the chip |
| 4311987 |
Validity check process for data supplied by digital displacement detectors and detectors using t |
January 19, 1982 |
| A checking process for data supplied by a digital detector with coded tracks. This detector is designed to supply two words of the same format: one word A in Gray code and one word D in Gray code complemented and shifted back by a half coding point. The apparatus includes the numerical |
